/* ==========================================================================
   DUMBBELL GURU — COMMERCIAL-GRADE EDITORIAL FITNESS PLATFORM
   Aesthetic: High-End Athletic Performance & Precision Biomechanics
   ========================================================================== */

:root {
  /* Core Obsidian Palette */
  --bg-canvas: #090a0f;
  --bg-surface: #10121a;
  --bg-surface-elevated: #161924;
  --bg-surface-high: #1e2230;
  --bg-surface-card: #131620;

  /* Editorial Athletic Accents */
  --accent-gym: #ff6200;
  --accent-gym-hover: #ff781f;
  --accent-gym-dim: rgba(255, 98, 0, 0.12);
  --accent-gym-border: rgba(255, 98, 0, 0.35);

  --accent-dumbbell: #00e5ff;
  --accent-dumbbell-hover: #33ebff;
  --accent-dumbbell-dim: rgba(0, 229, 255, 0.12);
  --accent-dumbbell-border: rgba(0, 229, 255, 0.35);

  --accent-nutrition: #00e676;
  --accent-gold: #ffd700;
  --accent-coral: #ff3366;

  /* Typography Colors */
  --text-platinum: #f8fafc;
  --text-silver: #cbd5e1;
  --text-steel: #94a3b8;
  --text-graphite: #64748b;
  --text-dark: #334155;

  /* Hairline Borders */
  --border-subtle: rgba(255, 255, 255, 0.07);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-bright: rgba(255, 255, 255, 0.22);

  /* Typography Families */
  --font-display: 'Barlow Condensed', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Geometry & Grid */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  --container-max: 1360px;
  --header-height: 74px;
  --transition-fast: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   RESET & FOUNDATIONS
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--bg-canvas);
  color: var(--text-silver);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.reference-theme {
  font-family: var(--font-body);
  background-color: var(--bg-canvas);
  color: var(--text-silver);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  line-height: 1.5;
  overflow-x: hidden;
}

/* Standard Container */
.app-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: clamp(1rem, 3vw, 2.5rem);
  padding-right: clamp(1rem, 3vw, 2.5rem);
}

/* General Section Structure */
.site-section {
  padding-top: clamp(3.5rem, 6vw, 6.5rem);
  padding-bottom: clamp(3.5rem, 6vw, 6.5rem);
  position: relative;
  border-bottom: 1px solid var(--border-subtle);
}

.site-section:last-of-type {
  border-bottom: none;
}

.section-header-block {
  margin-bottom: clamp(2rem, 3.5vw, 3.25rem);
}

.section-tag-wrap {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
}

.section-tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gym);
}

.gym-mode-active .section-tag-dot { background: var(--accent-gym); }
.dumbbell-mode-active .section-tag-dot { background: var(--accent-dumbbell); }

.section-tag-text {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-platinum);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.25rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: #ffffff;
  line-height: 1.05;
  margin-bottom: 0.65rem;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-steel);
  max-width: 680px;
  line-height: 1.6;
}

/* ==========================================================================
   STICKY TOP NAVIGATION HEADER
   ========================================================================== */
.app-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(9, 10, 15, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 90;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.header-inner {
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1rem, 2.5vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Brand Wordmark */
.app-logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: #ffffff;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-gym);
  transition: var(--transition-fast);
}

.dumbbell-mode-active .logo-mark {
  color: var(--accent-dumbbell);
}

.logo-mark .material-symbols-outlined {
  font-size: 20px;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1;
}

.logo-text span {
  color: var(--accent-gym);
}

.dumbbell-mode-active .logo-text span {
  color: var(--accent-dumbbell);
}

/* Desktop Navigation */
.app-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 1vw, 0.85rem);
}

.nav-link,
.nav-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-link:hover,
.nav-pill-btn:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-medium);
}

.nav-link .material-symbols-outlined,
.nav-pill-btn .material-symbols-outlined {
  font-size: 18px;
  color: var(--text-steel);
  transition: color 0.18s ease;
}

.nav-link:hover .material-symbols-outlined,
.nav-pill-btn:hover .material-symbols-outlined {
  color: var(--text-platinum);
}

/* Header Right Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.mode-toggle-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  color: var(--text-platinum);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mode-toggle-pill:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-bright);
}

.mode-indicator-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-gym);
  box-shadow: 0 0 8px var(--accent-gym);
}

.dumbbell-mode-active .mode-indicator-dot {
  background: var(--accent-dumbbell);
  box-shadow: 0 0 8px var(--accent-dumbbell);
}

.mode-toggle-pill .mode-icon {
  font-size: 16px;
  color: var(--text-steel);
}

.btn-primary-action {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--accent-gym);
  color: #000000;
  border: 1px solid var(--accent-gym);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-primary-action:hover {
  background: var(--accent-gym-hover);
  transform: translateY(-1px);
}

.dumbbell-mode-active .btn-primary-action {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
}

.dumbbell-mode-active .btn-primary-action:hover {
  background: var(--accent-dumbbell-hover);
}

.btn-primary-action .material-symbols-outlined {
  font-size: 18px;
  transition: transform 0.2s ease;
}

.btn-primary-action:hover .material-symbols-outlined {
  transform: translateX(3px);
}

/* Mobile Toggle */
.mobile-menu-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-medium);
  color: #ffffff;
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.mobile-nav-drawer {
  display: none;
  flex-direction: column;
  background: #0d0f17;
  border-bottom: 1px solid var(--border-medium);
  padding: 1rem 1.5rem 1.5rem;
  gap: 0.5rem;
}

.mobile-nav-drawer.open {
  display: flex;
}

.mobile-nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.5rem;
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid var(--border-subtle);
  background: transparent;
  border-top: none;
  border-left: none;
  border-right: none;
  cursor: pointer;
  width: 100%;
  text-align: left;
}

.mobile-drawer-footer {
  margin-top: 1rem;
}

.mobile-mode-btn {
  width: 100%;
  justify-content: center;
  padding: 0.75rem;
}

/* ==========================================================================
   HERO SECTION — HIGH IMPACT EDITORIAL
   ========================================================================== */
.hero-section {
  position: relative;
  padding-top: clamp(3.5rem, 6vw, 6rem);
  padding-bottom: clamp(3.5rem, 6vw, 5.5rem);
  overflow: hidden;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-backdrop-gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 50% -10%, rgba(255, 98, 0, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(22, 25, 36, 0.8) 0%, transparent 50%);
  pointer-events: none;
}

.dumbbell-mode-active .hero-backdrop-gradient {
  background: 
    radial-gradient(ellipse at 50% -10%, rgba(0, 229, 255, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 10% 40%, rgba(22, 25, 36, 0.8) 0%, transparent 50%);
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero-container {
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.5rem;
}

.hero-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-gym);
  box-shadow: 0 0 10px var(--accent-gym);
}

.dumbbell-mode-active .hero-pulse-dot {
  background: var(--accent-dumbbell);
  box-shadow: 0 0 10px var(--accent-dumbbell);
}

.hero-badge-text {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-platinum);
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 7.5vw, 6.2rem);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.hero-accent-text {
  color: var(--accent-gym);
}

.dumbbell-mode-active .hero-accent-text {
  color: var(--accent-dumbbell);
}

.hero-subtext {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-silver);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 2rem;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.25rem;
}

.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--accent-gym);
  color: #000000;
  border: 1px solid var(--accent-gym);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 10px 25px rgba(255, 98, 0, 0.25);
}

.btn-hero-primary:hover {
  background: var(--accent-gym-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(255, 98, 0, 0.35);
}

.dumbbell-mode-active .btn-hero-primary {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
  box-shadow: 0 10px 25px rgba(0, 229, 255, 0.25);
}

.dumbbell-mode-active .btn-hero-primary:hover {
  background: var(--accent-dumbbell-hover);
  box-shadow: 0 14px 30px rgba(0, 229, 255, 0.35);
}

.btn-hero-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  border: 1px solid var(--border-bright);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-hero-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
  transform: translateY(-2px);
}

/* Hero Mode Switcher Segmented Control */
.hero-mode-selector-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-mode-label {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--text-steel);
  text-transform: uppercase;
}

.hero-mode-switch {
  display: inline-flex;
  background: #11131a;
  border: 1px solid var(--border-medium);
  padding: 4px;
  border-radius: var(--radius-pill);
  gap: 4px;
}

.mode-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-pill);
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-steel);
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mode-tab-btn:hover {
  color: #ffffff;
}

.mode-tab-btn.active {
  background: #1a1e2a;
  border-color: var(--border-bright);
  color: #ffffff;
}

.mode-tab-btn.active[data-mode="gym"] {
  border-color: rgba(255, 98, 0, 0.5);
  color: var(--accent-gym);
}

.mode-tab-btn.active[data-mode="dumbbell"] {
  border-color: rgba(0, 229, 255, 0.5);
  color: var(--accent-dumbbell);
}

.mode-tab-count {
  font-size: 0.72rem;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-silver);
}

/* Quick Muscle Jump Strip */
.hero-muscle-strip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
  background: rgba(16, 18, 26, 0.6);
  border: 1px solid var(--border-subtle);
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-pill);
}

.muscle-strip-label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-gym);
  text-transform: uppercase;
}

.dumbbell-mode-active .muscle-strip-label {
  color: var(--accent-dumbbell);
}

.muscle-strip-pills {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero-chip-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition-fast);
}

.hero-chip-btn:hover {
  background: rgba(255, 98, 0, 0.15);
  border-color: var(--accent-gym);
  color: #ffffff;
  transform: translateY(-1px);
}

.dumbbell-mode-active .hero-chip-btn:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--accent-dumbbell);
}

/* Performance Metrics Ticker */
.hero-stats-ticker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1rem, 2.5vw, 2.5rem);
  flex-wrap: wrap;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  width: 100%;
}

.stat-ticker-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
}

.stat-ticker-val {
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.stat-ticker-lbl {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-steel);
  text-transform: uppercase;
}

.stat-ticker-divider {
  width: 1px;
  height: 28px;
  background: var(--border-medium);
}

/* ==========================================================================
   SECTION 1: EXERCISE LIBRARY & DISCOVERY
   ========================================================================== */
.library-filter-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.filter-row-primary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  flex: 1;
}

.filter-group-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-steel);
  text-transform: uppercase;
}

.filter-chips-scroll {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 2px;
}

.filter-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.filter-chip:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-bright);
  color: #ffffff;
}

.filter-chip.active {
  background: var(--accent-gym);
  border-color: var(--accent-gym);
  color: #000000;
}

.dumbbell-mode-active .filter-chip.active {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
}

.search-box-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.45rem 0.85rem;
  min-width: 260px;
}

.search-icon {
  color: var(--text-steel);
  font-size: 18px;
}

.exercise-search-field {
  background: transparent;
  border: none;
  outline: none;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.9rem;
  width: 100%;
}

.exercise-search-field::placeholder {
  color: var(--text-graphite);
}

.filter-row-secondary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.85rem;
  flex-wrap: wrap;
}

.secondary-filters-wrap {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.dropdown-filter-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.dropdown-filter-item label {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-graphite);
  text-transform: uppercase;
}

.filter-select {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  outline: none;
  cursor: pointer;
}

.filter-results-counter {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-steel);
}

.filter-results-counter span {
  color: var(--accent-gym);
}

.dumbbell-mode-active .filter-results-counter span {
  color: var(--accent-dumbbell);
}

/* 8 Muscle Anatomy Cards Row */
.muscle-anatomy-cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-bottom: 3.5rem;
}

.anatomy-card {
  position: relative;
  height: 240px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-medium);
  background: #0d0f17;
  cursor: pointer;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease, box-shadow 0.25s ease;
}

.anatomy-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 98, 0, 0.5);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
}

.dumbbell-mode-active .anatomy-card:hover {
  border-color: rgba(0, 229, 255, 0.5);
}

.anatomy-card-bg {
  position: absolute;
  inset: 0;
}

.anatomy-card-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
  filter: brightness(0.85) contrast(1.1);
}

.anatomy-card:hover .anatomy-card-bg img {
  transform: scale(1.04);
}

.anatomy-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(9, 10, 15, 0.2) 0%, rgba(9, 10, 15, 0.95) 85%);
}

.anatomy-card-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
}

.anatomy-card-badge {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-gym);
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.dumbbell-mode-active .anatomy-card-badge {
  color: var(--accent-dumbbell);
}

.anatomy-card-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1;
  margin-bottom: 0.2rem;
}

.anatomy-card-count {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-steel);
  text-transform: uppercase;
  margin-bottom: 0.65rem;
}

.anatomy-card-action {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-platinum);
  text-transform: uppercase;
  transition: color 0.2s ease;
}

.anatomy-card:hover .anatomy-card-action {
  color: var(--accent-gym);
}

.dumbbell-mode-active .anatomy-card:hover .anatomy-card-action {
  color: var(--accent-dumbbell);
}

.anatomy-card-action .material-symbols-outlined {
  font-size: 16px;
  transition: transform 0.2s ease;
}

.anatomy-card:hover .anatomy-card-action .material-symbols-outlined {
  transform: translateX(4px);
}

/* Individual Filtered Movement Grid */
.filtered-movements-header {
  margin-bottom: 1.25rem;
}

.filtered-movements-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.04em;
}

.filtered-movements-sub {
  font-size: 0.85rem;
  color: var(--text-steel);
}

.filtered-exercises-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.15rem;
}

.exercise-item-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.2s ease, box-shadow 0.2s ease;
}

.exercise-item-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 98, 0, 0.4);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.dumbbell-mode-active .exercise-item-card:hover {
  border-color: rgba(0, 229, 255, 0.4);
}

.exercise-card-thumb {
  position: relative;
  height: 160px;
  background: #08090d;
  overflow: hidden;
}

.exercise-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.exercise-item-card:hover .exercise-card-thumb img {
  transform: scale(1.04);
}

.exercise-card-equip-badge {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-bright);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-gym);
}

.dumbbell-mode-active .exercise-card-equip-badge {
  color: var(--accent-dumbbell);
}

.exercise-card-body {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.exercise-card-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.2;
  margin-bottom: 0.35rem;
}

.exercise-card-target {
  font-size: 0.82rem;
  color: var(--text-steel);
  margin-bottom: 0.75rem;
  flex: 1;
}

.exercise-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.65rem;
}

.exercise-card-diff {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.exercise-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-silver);
  text-transform: uppercase;
}

.exercise-item-card:hover .exercise-card-cta {
  color: var(--accent-gym);
}

.dumbbell-mode-active .exercise-item-card:hover .exercise-card-cta {
  color: var(--accent-dumbbell);
}

/* ==========================================================================
   SECTION 2: INTERACTIVE WORKOUT PLANNER
   ========================================================================= */
.planner-layout-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.planner-config-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.planner-step-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.step-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.step-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-xs);
  background: rgba(255, 98, 0, 0.15);
  color: var(--accent-gym);
}

.dumbbell-mode-active .step-badge {
  background: rgba(0, 229, 255, 0.15);
  color: var(--accent-dumbbell);
}

.step-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-platinum);
}

.step-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.65rem;
}

.step-option-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  cursor: pointer;
  transition: var(--transition-fast);
}

.step-option-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-bright);
}

.step-option-btn.active {
  background: rgba(255, 98, 0, 0.12);
  border-color: var(--accent-gym);
}

.dumbbell-mode-active .step-option-btn.active {
  background: rgba(0, 229, 255, 0.12);
  border-color: var(--accent-dumbbell);
}

.step-option-btn .option-icon {
  font-size: 20px;
  color: var(--text-steel);
  margin-bottom: 0.35rem;
}

.step-option-btn.active .option-icon {
  color: var(--accent-gym);
}

.dumbbell-mode-active .step-option-btn.active .option-icon {
  color: var(--accent-dumbbell);
}

.step-option-btn .option-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.15rem;
}

.step-option-btn .option-desc {
  font-size: 0.75rem;
  color: var(--text-steel);
  line-height: 1.35;
}

.step-pills-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.step-pill-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  transition: var(--transition-fast);
}

.step-pill-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-bright);
  color: #ffffff;
}

.step-pill-btn.active {
  background: var(--accent-gym);
  border-color: var(--accent-gym);
  color: #000000;
}

.dumbbell-mode-active .step-pill-btn.active {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
}

/* Right Output Card */
.planner-output-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}

.routine-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.routine-meta-pill {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-gym);
  text-transform: uppercase;
  display: inline-block;
  margin-bottom: 0.25rem;
}

.dumbbell-mode-active .routine-meta-pill {
  color: var(--accent-dumbbell);
}

.routine-name {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.1;
  margin-bottom: 0.35rem;
}

.routine-summary {
  font-size: 0.85rem;
  color: var(--text-steel);
  max-width: 380px;
}

.routine-stats-box {
  display: flex;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  padding: 0.5rem 0.85rem;
  border-radius: var(--radius-sm);
}

.routine-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.routine-stat-val {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.routine-stat-lbl {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-steel);
  text-transform: uppercase;
}

.routine-exercises-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-bottom: 1.5rem;
}

.routine-ex-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  transition: var(--transition-fast);
}

.routine-ex-row:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-medium);
}

.routine-ex-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.routine-ex-num {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-gym);
}

.dumbbell-mode-active .routine-ex-num {
  color: var(--accent-dumbbell);
}

.routine-ex-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.2;
}

.routine-ex-target {
  font-size: 0.75rem;
  color: var(--text-steel);
}

.routine-ex-specs {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-align: right;
}

.routine-ex-badge {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-xs);
  color: var(--text-platinum);
}

.btn-start-workout {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  background: var(--accent-gym);
  color: #000000;
  border: 1px solid var(--accent-gym);
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  margin-bottom: 0.5rem;
}

.btn-start-workout:hover {
  background: var(--accent-gym-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(255, 98, 0, 0.3);
}

.dumbbell-mode-active .btn-start-workout {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
}

.dumbbell-mode-active .btn-start-workout:hover {
  background: var(--accent-dumbbell-hover);
  box-shadow: 0 10px 25px rgba(0, 229, 255, 0.3);
}

.routine-footnote {
  display: block;
  font-size: 0.75rem;
  color: var(--text-graphite);
  text-align: center;
}

/* ==========================================================================
   SECTION 3: SPORTS NUTRITION & FUEL STRATEGY
   ========================================================================== */
.nutrition-split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.nutrition-pillars-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
}

.card-headline {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
}

.nutrition-pillar-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.pillar-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pillar-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.2rem;
}

.pillar-desc {
  font-size: 0.85rem;
  color: var(--text-steel);
  line-height: 1.5;
}

.btn-open-full-diet {
  margin-top: 0.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(0, 255, 136, 0.1);
  border: 1px solid rgba(0, 255, 136, 0.4);
  color: #00ff88;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-open-full-diet:hover {
  background: rgba(0, 255, 136, 0.2);
  border-color: #00ff88;
}

.nutrition-calculator-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.calc-card-badge {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: #00ff88;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.25rem;
}

.calc-card-title {
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.macro-goal-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.macro-goal-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.5rem;
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  transition: var(--transition-fast);
}

.macro-goal-btn.active {
  background: rgba(0, 255, 136, 0.12);
  border-color: #00ff88;
  color: #ffffff;
}

.macro-goal-btn .material-symbols-outlined {
  font-size: 18px;
}

.macro-weight-control {
  margin-bottom: 1.5rem;
}

.macro-weight-control label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-steel);
  display: block;
  margin-bottom: 0.4rem;
}

.weight-input-group {
  display: flex;
  align-items: center;
  max-width: 220px;
}

.weight-number-input {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  padding: 0.4rem 0.85rem;
  width: 100%;
  outline: none;
}

.weight-unit-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-bright);
  border-left: none;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-platinum);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  padding: 0.72rem 1rem;
}

.macro-targets-display {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
}

.macro-stat-box {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
}

.macro-stat-num {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  line-height: 1.1;
}

.macro-stat-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text-steel);
  text-transform: uppercase;
}

/* ==========================================================================
   SECTION 4: CLINICAL BIOMETRICS & FITNESS CALCULATORS
   ========================================================================== */
.bmi-grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.bmi-inputs-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.bmi-unit-toggle-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bmi-card-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-steel);
}

.bmi-unit-toggle {
  display: inline-flex;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  padding: 2px;
  border-radius: var(--radius-xs);
}

.unit-toggle-btn {
  background: transparent;
  border: none;
  color: var(--text-steel);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
}

.unit-toggle-btn.active {
  background: #ffffff;
  color: #000000;
}

.bmi-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.bmi-field-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.bmi-field-group label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-steel);
}

.bmi-input,
.bmi-select {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.55rem 0.85rem;
  border-radius: var(--radius-xs);
  outline: none;
}

.bmi-input:focus,
.bmi-select:focus {
  border-color: var(--border-bright);
}

.bmi-results-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.bmi-score-box {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0.85rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.bmi-result-tag {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-steel);
}

.bmi-score-number {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}

.bmi-category-badge {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  background: rgba(0, 255, 136, 0.15);
  color: #00ff88;
}

/* Gauge Bar */
.bmi-gauge-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.bmi-gauge-bar {
  position: relative;
  height: 10px;
  background: #1e2230;
  border-radius: var(--radius-pill);
  display: flex;
  overflow: hidden;
}

.gauge-segment { height: 100%; }
.gauge-under { width: 25%; background: #00e5ff; }
.gauge-normal { width: 35%; background: #00e676; }
.gauge-over { width: 25%; background: #ffd700; }
.gauge-obese { width: 15%; background: #ff3366; }

.bmi-pointer {
  position: absolute;
  top: -2px;
  width: 4px;
  height: 14px;
  background: #ffffff;
  border-radius: 2px;
  box-shadow: 0 0 6px #ffffff;
  transform: translateX(-50%);
  transition: left 0.3s ease;
}

.bmi-gauge-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-graphite);
}

.bmi-athletic-note {
  background: rgba(255, 215, 0, 0.06);
  border: 1px solid rgba(255, 215, 0, 0.25);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.82rem;
  color: #e2e8f0;
  line-height: 1.45;
}

.metabolic-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.65rem;
}

.stat-mini-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
}

.stat-mini-label {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-steel);
}

.stat-mini-val {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
}

.calorie-targets-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.calorie-target-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  padding: 0.65rem;
  display: flex;
  flex-direction: column;
}

.target-title {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text-steel);
}

.target-calories {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 900;
  color: #ffffff;
}

.target-delta {
  font-size: 0.68rem;
  color: var(--text-graphite);
}

/* ==========================================================================
   SECTION 5: TRAINING PERIODIZATION & PROTOCOLS
   ========================================================================== */
.periodization-methods-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.method-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

.method-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-bright);
}

.method-card-badge {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--accent-gym);
  text-transform: uppercase;
  margin-bottom: 0.35rem;
}

.dumbbell-mode-active .method-card-badge {
  color: var(--accent-dumbbell);
}

.method-card-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.65rem;
}

.method-card-desc {
  font-size: 0.88rem;
  color: var(--text-steel);
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex: 1;
}

.method-card-pills {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.tag-pill {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
  color: var(--text-silver);
}

.btn-view-method {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-view-method:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

.btn-view-method .material-symbols-outlined {
  font-size: 18px;
}

/* ==========================================================================
   EDITORIAL FOOTER
   ========================================================================== */
.app-footer {
  background: #06070a;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem;
}

.footer-top-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-brand-col {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 1.55rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #ffffff;
  text-transform: uppercase;
}

.footer-logo span {
  color: var(--accent-gym);
}

.dumbbell-mode-active .footer-logo span {
  color: var(--accent-dumbbell);
}

.footer-icon {
  font-size: 24px;
  color: var(--accent-gym);
}

.dumbbell-mode-active .footer-icon {
  color: var(--accent-dumbbell);
}

.footer-tagline {
  font-size: 0.88rem;
  color: var(--text-steel);
  max-width: 320px;
  line-height: 1.5;
}

.footer-col-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 1rem;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links-col a {
  color: var(--text-steel);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.18s ease;
}

.footer-links-col a:hover {
  color: #ffffff;
}

.social-icons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.social-icons a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-silver);
  transition: var(--transition-fast);
}

.social-icons a:hover {
  color: #ffffff;
  border-color: #ffffff;
  transform: translateY(-2px);
}

.footer-bottom-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-subtle);
  padding-top: 2rem;
  font-size: 0.82rem;
  color: var(--text-graphite);
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-legal-links {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-links a {
  color: var(--text-graphite);
  text-decoration: none;
}

.footer-legal-links a:hover {
  color: var(--text-silver);
}

/* ==========================================================================
   MODAL 1: EXERCISE MODAL WITH PRESERVED LEFT SIDEBAR
   ========================================================================== */
.exercise-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(7, 8, 12, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 100;
  overflow-y: auto;
  padding: clamp(1rem, 2vw, 2.5rem);
}

.exercise-modal-container {
  max-width: 1220px;
  margin: 0 auto;
  background: #11131a;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.9);
  overflow: hidden;
}

.exercise-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.75rem;
  border-bottom: 1px solid var(--border-medium);
  background: #151822;
}

.modal-badge-tag {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--accent-gym);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.dumbbell-mode-active .modal-badge-tag {
  color: var(--accent-dumbbell);
}

.modal-exercise-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.1;
  margin-top: 0.15rem;
}

.modal-close-btn {
  background: transparent;
  border: 1px solid var(--border-medium);
  color: #ffffff;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

/* Split-View Modal Layout */
.exercise-modal-split-layout {
  display: flex;
  min-height: 600px;
}

/* Left Muscle Groups Sidebar */
.modal-muscle-sidebar {
  width: 250px;
  flex-shrink: 0;
  background: #0c0e14;
  border-right: 1px solid var(--border-medium);
  padding: 1.25rem 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.25rem 0.5rem 0.65rem;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 0.25rem;
}

.sidebar-header-icon {
  font-size: 1.15rem;
  color: var(--accent-gym);
}

.dumbbell-mode-active .sidebar-header-icon {
  color: var(--accent-dumbbell);
}

.sidebar-header-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-steel);
}

.sidebar-muscle-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.muscle-sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: left;
  width: 100%;
}

.muscle-sidebar-item:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: var(--border-bright);
  transform: translateX(3px);
}

.sidebar-thumb {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  flex-shrink: 0;
  background: #08090c;
  border: 1px solid var(--border-subtle);
}

.sidebar-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sidebar-info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  flex: 1;
  min-width: 0;
}

.sidebar-title {
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #ffffff;
  line-height: 1.2;
}

.sidebar-count {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-graphite);
  line-height: 1.2;
}

/* Active Highlight States */
.muscle-sidebar-item.active {
  background: rgba(255, 98, 0, 0.15);
  border-color: var(--accent-gym);
}

.muscle-sidebar-item.active .sidebar-title {
  color: var(--accent-gym);
}

.dumbbell-mode-active .muscle-sidebar-item.active {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--accent-dumbbell);
}

.dumbbell-mode-active .muscle-sidebar-item.active .sidebar-title {
  color: var(--accent-dumbbell);
}

/* Right Main Exercise Content */
.exercise-modal-body {
  flex: 1;
  padding: 1.5rem 1.75rem;
  overflow-y: auto;
  max-height: 80vh;
}

.switcher-headline-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 0.65rem;
}

.switcher-row-label {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text-steel);
  text-transform: uppercase;
}

.switcher-row-cue {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-gym);
}

.dumbbell-mode-active .switcher-row-cue {
  color: var(--accent-dumbbell);
}

.exercise-switcher-cards-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}

.exercise-nav-card {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: left;
  transition: var(--transition-fast);
}

.exercise-nav-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-bright);
}

.exercise-nav-card.active {
  background: rgba(255, 98, 0, 0.15);
  border-color: var(--accent-gym);
}

.dumbbell-mode-active .exercise-nav-card.active {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--accent-dumbbell);
}

.nav-card-thumb {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-xs);
  overflow: hidden;
  background: #08090c;
  flex-shrink: 0;
}

.nav-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nav-card-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.nav-card-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-card-meta {
  font-size: 0.72rem;
  color: var(--text-steel);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Equipment badges */
.gym-equip-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.1rem 0.35rem;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-gold);
  width: fit-content;
}

/* View Mode Tabs */
.view-mode-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.view-mode-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.95rem;
  border-radius: var(--radius-xs);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-fast);
}

.view-mode-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}

.view-mode-btn.active {
  background: var(--accent-gym);
  border-color: var(--accent-gym);
  color: #000000;
}

.dumbbell-mode-active .view-mode-btn.active {
  background: var(--accent-dumbbell);
  border-color: var(--accent-dumbbell);
}

.view-mode-btn .material-symbols-outlined {
  font-size: 18px;
}

/* Preview Demonstration Frame */
.png-preview-frame {
  position: relative;
  height: 380px;
  background: #07080c;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.png-preview-frame img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.preview-badge-hud {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(9, 10, 15, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-bright);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-xs);
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--accent-gym);
}

.dumbbell-mode-active .preview-badge-hud {
  color: var(--accent-dumbbell);
}

/* Details Grid */
.modal-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.modal-section-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.modal-steps-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.modal-specs-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.specs-box {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 1.15rem;
}

.specs-box-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent-gym);
  margin-bottom: 0.65rem;
}

.dumbbell-mode-active .specs-box-title {
  color: var(--accent-dumbbell);
}

.specs-items-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-silver);
}

.mistake-fix-box {
  background: rgba(255, 51, 102, 0.06);
  border: 1px solid rgba(255, 51, 102, 0.3);
  border-radius: var(--radius-sm);
  padding: 1.15rem;
}

.mistake-box-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent-coral);
  margin-bottom: 0.45rem;
}

.mistake-text {
  font-size: 0.85rem;
  color: #ffb4ab;
  margin-bottom: 0.35rem;
}

.fix-text {
  font-size: 0.85rem;
  color: #00ff88;
  font-weight: 600;
}

/* ==========================================================================
   SCHEDULE, DIET & BMI MODAL SHARED STYLES
   ========================================================================== */
.schedule-modal-container,
.diet-modal-container,
.bmi-modal-container,
.active-workout-container {
  max-width: 1040px;
}

/* Method Tabs */
.method-selector-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.method-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.85rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  transition: var(--transition-fast);
}

.method-tab-btn.active {
  background: rgba(0, 229, 255, 0.12);
  border-color: #00e5ff;
}

.method-tab-number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: #00e5ff;
}

.method-tab-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
}

.method-tab-tagline {
  font-size: 0.75rem;
  color: var(--text-steel);
}

.method-overview-banner {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
}

.method-overview-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.45rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.method-overview-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
}

.method-badges-row {
  display: flex;
  gap: 0.4rem;
}

.method-pill-tag {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-pill);
}

.tag-cyan { background: rgba(0, 229, 255, 0.15); color: #00e5ff; }
.tag-green { background: rgba(0, 230, 118, 0.15); color: #00e676; }
.tag-gold { background: rgba(255, 215, 0, 0.15); color: #ffd700; }

.method-overview-desc {
  font-size: 0.88rem;
  color: var(--text-silver);
  line-height: 1.5;
}

.schedule-days-nav {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 1.25rem;
}

.day-nav-pill {
  flex: 1;
  min-width: 90px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.45rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  cursor: pointer;
  transition: var(--transition-fast);
}

.day-nav-pill.active {
  background: #00e5ff;
  border-color: #00e5ff;
}

.day-nav-pill.active .day-nav-name,
.day-nav-pill.active .day-nav-focus {
  color: #000000;
}

.day-nav-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
}

.day-nav-focus {
  font-size: 0.65rem;
  color: var(--text-steel);
  text-align: center;
  white-space: nowrap;
}

.rest-day-card {
  text-align: center;
  padding: 2.5rem 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.rest-day-icon {
  font-size: 48px;
  color: #00e5ff;
  margin-bottom: 0.75rem;
}

.rest-day-title {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.rest-day-desc {
  font-size: 0.9rem;
  color: var(--text-silver);
  max-width: 500px;
  margin: 0 auto;
}

/* Nutrient Tabs */
.nutrient-selector-tabs {
  display: flex;
  gap: 0.4rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.nutrient-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xs);
  padding: 0.5rem 1rem;
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-fast);
}

.nutrient-tab-btn.active {
  background: #00ff88;
  border-color: #00ff88;
  color: #000000;
}

.nutrient-foods-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.food-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  flex-direction: column;
}

.food-card-name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  margin-bottom: 0.2rem;
}

.food-card-serving {
  font-size: 0.78rem;
  color: #00ff88;
  margin-bottom: 0.65rem;
}

.food-card-macros {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.3);
  padding: 0.45rem;
  border-radius: var(--radius-xs);
  font-size: 0.75rem;
}

/* ==========================================================================
   FITNESS & BIOMETRIC CALCULATORS SUITE
   ========================================================================== */
.btn-open-full-calc {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(255, 215, 0, 0.1);
  border: 1px solid rgba(255, 215, 0, 0.4);
  color: #ffd700;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-open-full-calc:hover {
  background: rgba(255, 215, 0, 0.2);
  border-color: #ffd700;
  transform: translateY(-1px);
}

.calc-selector-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.calc-tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  transition: var(--transition-fast);
}

.calc-tab-btn:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--border-bright);
}

.calc-tab-btn.active {
  background: rgba(255, 215, 0, 0.12);
  border-color: #ffd700;
}

.calc-tab-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: #ffd700;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.calc-tab-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #ffffff;
  letter-spacing: 0.04em;
}

.calc-tab-desc {
  font-size: 0.75rem;
  color: var(--text-steel);
  line-height: 1.35;
}

.calc-tab-pane {
  display: block;
}

/* 1RM Intensity Matrix Table */
.onerm-table {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.5rem;
}

.onerm-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.55rem 0.85rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xs);
  transition: var(--transition-fast);
}

.onerm-row:hover {
  background: rgba(0, 229, 255, 0.06);
  border-color: rgba(0, 229, 255, 0.3);
}

.onerm-row.highlight {
  background: rgba(0, 229, 255, 0.12);
  border-color: #00e5ff;
}

.onerm-pct-badge {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 800;
  color: #00e5ff;
  min-width: 50px;
}

.onerm-reps-label {
  font-size: 0.82rem;
  color: var(--text-silver);
  flex: 1;
  padding: 0 0.75rem;
}

.onerm-weight-val {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 800;
  color: #ffffff;
}

/* Active Workout Session HUD */
.active-workout-container {
  max-width: 1100px;
  position: relative;
  border: 1px solid rgba(255, 98, 0, 0.35);
  box-shadow: 0 25px 90px rgba(0, 0, 0, 0.95), 0 0 40px rgba(255, 98, 0, 0.15);
}

.active-hud-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: 1.25rem 1.75rem;
  background: linear-gradient(180deg, #181b26 0%, #13151f 100%);
  border-bottom: 1px solid var(--border-medium);
}

.active-live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff6200;
  box-shadow: 0 0 10px #ff6200;
  animation: pulse-live 1.8s infinite;
  margin-right: 6px;
  vertical-align: middle;
}

@keyframes pulse-live {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.active-hud-header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Quick Jump Dropdown */
.active-jump-selector-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-bright);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.active-jump-selector-wrap:hover,
.active-jump-selector-wrap:focus-within {
  border-color: var(--accent-dumbbell);
  background: rgba(255, 98, 0, 0.08);
}

.active-jump-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--accent-dumbbell);
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.jump-icon {
  font-size: 1.15rem;
  color: var(--accent-dumbbell);
}

.active-movement-select {
  background: transparent;
  border: none;
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  max-width: 250px;
}

.active-movement-select option {
  background: #151822;
  color: #ffffff;
  padding: 0.5rem;
}

/* Nav Bar Controls */
.active-hud-nav-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.75rem;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--border-medium);
  gap: 1rem;
  flex-wrap: wrap;
}

.active-nav-buttons {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.btn-hud-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-bright);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-hud-nav:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.btn-hud-nav:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-hud-nav-skip {
  background: linear-gradient(135deg, rgba(255, 98, 0, 0.25) 0%, rgba(255, 138, 0, 0.35) 100%);
  border-color: #ff6200;
  color: #fff;
  box-shadow: 0 0 15px rgba(255, 98, 0, 0.25);
}

.btn-hud-nav-skip:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff6200 0%, #ff8533 100%);
  color: #000;
  box-shadow: 0 0 20px rgba(255, 98, 0, 0.5);
}

.btn-hud-swap {
  background: rgba(0, 229, 255, 0.08);
  border-color: rgba(0, 229, 255, 0.4);
  color: #00e5ff;
}

.btn-hud-swap:hover:not(:disabled) {
  background: rgba(0, 229, 255, 0.2);
  color: #fff;
  border-color: #00e5ff;
}

.active-session-progress-pill {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-silver);
  background: #0d0f15;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  border: 1px solid var(--border-medium);
}

/* Routine Sequence Queue Strip */
.active-queue-section {
  padding: 1rem 1.75rem 0.5rem 1.75rem;
  background: #0e1017;
  border-bottom: 1px solid var(--border-medium);
}

.active-queue-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.active-queue-title {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--text-steel);
  text-transform: uppercase;
}

.active-queue-hint {
  font-size: 0.78rem;
  color: var(--text-silver);
}

.active-routine-queue {
  display: flex;
  gap: 0.85rem;
  overflow-x: auto;
  padding-bottom: 0.75rem;
  scroll-behavior: smooth;
}

.active-routine-queue::-webkit-scrollbar {
  height: 6px;
}

.active-routine-queue::-webkit-scrollbar-thumb {
  background: var(--border-bright);
  border-radius: 3px;
}

.active-queue-card {
  flex: 0 0 220px;
  background: #141722;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
  text-align: left;
}

.active-queue-card:hover {
  background: #1b1f2e;
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.active-queue-card.is-current {
  background: linear-gradient(135deg, rgba(255, 98, 0, 0.15) 0%, rgba(20, 23, 34, 0.95) 100%);
  border-color: #ff6200;
  box-shadow: 0 0 16px rgba(255, 98, 0, 0.25);
}

.active-queue-card.is-current::after {
  content: 'ACTIVE';
  position: absolute;
  top: -8px;
  right: 10px;
  background: #ff6200;
  color: #000;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  padding: 1px 6px;
  border-radius: 4px;
}

.active-queue-card.is-completed {
  border-color: rgba(0, 230, 118, 0.4);
  background: rgba(0, 230, 118, 0.04);
}

.active-queue-card.is-completed .queue-card-idx {
  background: #00e676;
  color: #000;
}

.queue-card-thumb {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: #090a0f;
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-medium);
}

.queue-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.queue-card-info {
  flex: 1;
  min-width: 0;
}

.queue-card-header-line {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-bottom: 0.15rem;
}

.queue-card-idx {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--accent-dumbbell);
  background: rgba(255, 98, 0, 0.12);
  padding: 1px 5px;
  border-radius: 3px;
}

.queue-card-name {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: uppercase;
}

.queue-card-meta {
  font-size: 0.75rem;
  color: var(--text-steel);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.active-hud-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.active-exercise-display {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.active-movement-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.active-step-lbl {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-gym);
}

.dumbbell-mode-active .active-step-lbl {
  color: var(--accent-dumbbell);
}

.active-step-badge-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 800;
  color: #ff6200;
  background: rgba(255, 98, 0, 0.1);
  border: 1px solid rgba(255, 98, 0, 0.3);
  padding: 2px 8px;
  border-radius: 4px;
}

.active-movement-name {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 900;
  text-transform: uppercase;
  color: #ffffff;
  line-height: 1.1;
}

.active-movement-meta {
  font-size: 0.9rem;
  color: var(--text-steel);
}

/* Set Tracker Chips */
.active-sets-tracker-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0.35rem 0;
  flex-wrap: wrap;
}

.active-sets-label {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--text-steel);
  letter-spacing: 0.06em;
}

.active-sets-tracker {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.set-chip {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border-medium);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-silver);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

.set-chip.active-set {
  background: rgba(255, 98, 0, 0.2);
  border-color: #ff6200;
  color: #fff;
  box-shadow: 0 0 10px rgba(255, 98, 0, 0.3);
}

.set-chip.done-set {
  background: rgba(0, 230, 118, 0.15);
  border-color: #00e676;
  color: #00e676;
}

.active-thumb-preview {
  height: 220px;
  background: #08090d;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-medium);
  margin-top: 0.25rem;
}

.active-thumb-preview img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Quick Actions Under Preview */
.active-quick-actions-bar {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.65rem;
}

.btn-subtle-action {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-medium);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-subtle-action:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  border-color: var(--border-bright);
}

.active-timer-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.timer-panel-label {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--text-steel);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.timer-countdown-display {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 900;
  color: var(--accent-gym);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.dumbbell-mode-active .timer-countdown-display {
  color: var(--accent-dumbbell);
}

.timer-controls-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.timer-ctrl-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-bright);
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 0.95rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.timer-ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.12);
}

.active-session-progression {
  width: 100%;
  max-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.btn-complete-set {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: #00e676;
  color: #000000;
  border: none;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  width: 100%;
}

.btn-complete-set:hover {
  background: #2aff92;
  transform: translateY(-2px);
}

.btn-complete-set.btn-next-exercise-mode {
  background: linear-gradient(135deg, #ff6200 0%, #ff8533 100%);
  color: #000;
  box-shadow: 0 0 20px rgba(255, 98, 0, 0.4);
}

.btn-panel-skip-movement {
  margin-top: 0.85rem;
  background: transparent;
  border: 1px dashed var(--border-bright);
  color: var(--text-silver);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
  width: 100%;
  justify-content: center;
}

.btn-panel-skip-movement:hover {
  background: rgba(255, 98, 0, 0.1);
  border-color: #ff6200;
  color: #ff6200;
}

/* Swap Movement Drawer */
.active-swap-drawer {
  position: absolute;
  inset: 0;
  background: rgba(14, 16, 23, 0.98);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 2rem;
  overflow-y: auto;
  animation: fadeInDrawer 0.25s ease-out;
}

@keyframes fadeInDrawer {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.swap-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-medium);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.swap-drawer-badge {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  color: #00e5ff;
  letter-spacing: 0.1em;
}

.swap-drawer-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  color: #fff;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

.swap-drawer-close {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-bright);
  color: #fff;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}

.swap-drawer-close:hover {
  background: rgba(255, 98, 0, 0.2);
  border-color: #ff6200;
}

.swap-drawer-desc {
  font-size: 0.9rem;
  color: var(--text-silver);
  margin-bottom: 1.25rem;
}

.swap-drawer-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.swap-card {
  background: #151822;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 1rem;
  display: flex;
  gap: 1rem;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
}

.swap-card:hover {
  background: #1c202d;
  border-color: #ff6200;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.swap-card-thumb {
  width: 60px;
  height: 60px;
  background: #090a0f;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  border: 1px solid var(--border-medium);
}

.swap-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.swap-card-info {
  flex: 1;
}

.swap-card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
  line-height: 1.2;
  margin-bottom: 0.25rem;
}

.swap-card-meta {
  font-size: 0.8rem;
  color: var(--text-steel);
}

.btn-choose-swap {
  background: rgba(255, 98, 0, 0.15);
  border: 1px solid #ff6200;
  color: #ff6200;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-xs);
  cursor: pointer;
  margin-top: 0.5rem;
  display: inline-block;
  transition: all 0.2s;
}

.swap-card:hover .btn-choose-swap {
  background: #ff6200;
  color: #000;
}

/* Celebration Overlay */
.active-completed-hud {
  position: absolute;
  inset: 0;
  background: rgba(9, 10, 15, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  text-align: center;
  animation: fadeInDrawer 0.3s ease-out;
}

.completed-hud-content {
  max-width: 500px;
  background: #141722;
  border: 1px solid rgba(0, 230, 118, 0.5);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px rgba(0, 230, 118, 0.15);
}

.completed-trophy {
  font-size: 4rem;
  color: #00e676;
  margin-bottom: 1rem;
}

.completed-hud-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: #fff;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.completed-hud-desc {
  font-size: 0.95rem;
  color: var(--text-silver);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.completed-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

.btn-completed-restart {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-bright);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 800;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-completed-close {
  background: #00e676;
  color: #000;
  border: none;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 900;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s;
}

.btn-completed-close:hover {
  background: #2aff92;
  transform: translateY(-2px);
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */
@media (max-width: 1199px) {
  .muscle-anatomy-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .periodization-methods-grid {
    grid-template-columns: 1fr;
  }

  .footer-top-row {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
}

@media (max-width: 991px) {
  .app-nav {
    display: none;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .planner-layout-grid,
  .nutrition-split-grid,
  .bmi-grid-layout,
  .modal-details-grid,
  .active-hud-grid {
    grid-template-columns: 1fr;
  }

  /* Exercise Modal Mobile Split Layout */
  .exercise-modal-split-layout {
    flex-direction: column;
  }

  .modal-muscle-sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-medium);
    padding: 0.75rem 1rem;
  }

  .sidebar-muscle-list {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 0.35rem;
  }

  .muscle-sidebar-item {
    flex-shrink: 0;
    width: auto;
    min-width: 140px;
  }

  .exercise-modal-body {
    max-height: none;
  }

  .png-preview-frame {
    height: 280px;
  }
}

@media (max-width: 767px) {
  .header-inner {
    padding: 0 1rem;
    gap: 0.5rem;
  }

  .app-logo .logo-text {
    font-size: 1.2rem;
  }

  .logo-mark {
    width: 32px;
    height: 32px;
  }

  .header-actions .btn-primary-action {
    display: none;
  }

  .mode-toggle-pill {
    padding: 0.35rem 0.65rem;
    font-size: 0.78rem;
  }

  .mode-toggle-pill .mode-icon {
    display: none;
  }

  .hero-headline {
    font-size: 2.8rem;
  }

  .hero-stats-ticker {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .stat-ticker-divider {
    display: none;
  }

  .filter-row-primary {
    flex-direction: column;
    align-items: stretch;
  }

  .search-box-wrap {
    width: 100%;
  }

  .muscle-anatomy-cards-grid {
    grid-template-columns: 1fr;
  }

  .step-options-grid {
    grid-template-columns: 1fr;
  }

  .macro-goal-selector {
    grid-template-columns: 1fr;
  }

  .macro-targets-display {
    grid-template-columns: repeat(2, 1fr);
  }

  .bmi-field-row {
    grid-template-columns: 1fr;
  }

  .calc-selector-tabs {
    grid-template-columns: 1fr;
  }

  .footer-top-row {
    grid-template-columns: 1fr;
  }
}