/* ============================================
   PowerFit Gym Center - Global Styles
   Author: PowerFit Team
   Version: 2.0
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@400;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Colors */
  --neon-green: #39FF14;
  --neon-green-dim: #2BC810;
  --neon-green-glow: rgba(57, 255, 20, 0.3);
  --accent-orange: #FF6B00;
  --accent-red: #FF3333;
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #161616;
  --bg-card-hover: #1c1c1c;
  --bg-glass: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #aaaaaa;
  --text-muted: #666666;
  --border-color: rgba(255, 255, 255, 0.1);
  --border-neon: rgba(57, 255, 20, 0.3);

  /* Typography */
  --font-heading: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1200px;

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: all 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);

  /* Shadows */
  --shadow-neon: 0 0 20px rgba(57, 255, 20, 0.4);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-card-hover: 0 16px 48px rgba(0, 0, 0, 0.7);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;

  /* Navbar */
  --navbar-height: 70px;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font-body); }
input, textarea, select { font-family: var(--font-body); }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--neon-green); border-radius: 3px; }

/* ---- Container ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Section Utilities ---- */
.section { padding: var(--section-padding); }
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon-green);
  margin-bottom: 12px;
}
.section-title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  max-width: 560px;
  margin-bottom: 48px;
}
.section-header { margin-bottom: 60px; }
.section-header.center { text-align: center; }
.section-header.center .section-subtitle { margin-left: auto; margin-right: auto; }

/* ---- Background Colors ---- */
.bg-primary { background-color: var(--bg-primary); }
.bg-secondary { background-color: var(--bg-secondary); }
.bg-card { background-color: var(--bg-card); }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--navbar-height);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(10, 10, 10, 0.98);
  border-bottom-color: var(--border-neon);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}
.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}
.navbar-logo {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--text-primary);
  letter-spacing: 1px;
}
.navbar-logo span { color: var(--neon-green); }
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.nav-link:hover, .nav-link.active {
  color: var(--neon-green);
  background: rgba(57, 255, 20, 0.08);
}
.navbar-actions { display: flex; align-items: center; gap: 12px; }
.cart-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}
.cart-btn:hover { border-color: var(--neon-green); color: var(--neon-green); }
.cart-badge {
  position: absolute;
  top: -6px; right: -6px;
  width: 20px; height: 20px;
  background: var(--neon-green);
  color: #000;
  font-size: 11px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-nav-cta {
  padding: 9px 22px;
  background: var(--neon-green);
  color: #000;
  font-size: 13px;
  font-weight: 700;
  border-radius: var(--radius-xl);
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: var(--transition);
}
.btn-nav-cta:hover { background: var(--neon-green-dim); box-shadow: var(--shadow-neon); transform: translateY(-1px); }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--neon-green);
  color: #000000;
  border-color: var(--neon-green);
}
.btn-primary:hover {
  background: transparent;
  color: var(--neon-green);
  box-shadow: var(--shadow-neon), inset 0 0 20px rgba(57, 255, 20, 0.05);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-outline:hover {
  border-color: var(--neon-green);
  color: var(--neon-green);
  transform: translateY(-2px);
}
.btn-neon-outline {
  background: transparent;
  color: var(--neon-green);
  border-color: var(--neon-green);
}
.btn-neon-outline:hover {
  background: var(--neon-green);
  color: #000;
  box-shadow: var(--shadow-neon);
  transform: translateY(-2px);
}
.btn-sm { padding: 10px 22px; font-size: 13px; }
.btn-lg { padding: 18px 44px; font-size: 16px; }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--navbar-height);
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.7) 50%, rgba(10,10,10,0.85) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(57, 255, 20, 0.1);
  border: 1px solid rgba(57, 255, 20, 0.3);
  padding: 8px 18px;
  border-radius: var(--radius-xl);
  font-size: 12px;
  font-weight: 600;
  color: var(--neon-green);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-badge-dot {
  width: 8px; height: 8px;
  background: var(--neon-green);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}
.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(52px, 8vw, 100px);
  font-weight: 900;
  line-height: 0.95;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.hero-title .accent { color: var(--neon-green); display: block; }
.hero-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 40px;
  line-height: 1.7;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 36px;
  font-weight: 900;
  color: var(--neon-green);
  line-height: 1;
}
.hero-stat-label { font-size: 13px; color: var(--text-secondary); margin-top: 4px; }
.hero-scroll {
  position: absolute;
  bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 2;
}
.scroll-line {
  width: 1px; height: 50px;
  background: linear-gradient(to bottom, var(--neon-green), transparent);
  animation: scroll-line 2s infinite;
}

/* ============================================
   STATS / COUNTERS
   ============================================ */
.stats-section {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 60px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  text-align: center;
}
.stat-item { position: relative; }
.stat-item::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  transform: translateY(-50%);
  width: 1px; height: 60px;
  background: var(--border-color);
}
.stat-item:last-child::after { display: none; }
.stat-number {
  font-family: var(--font-heading);
  font-size: 56px;
  font-weight: 900;
  color: var(--neon-green);
  line-height: 1;
  display: block;
}
.stat-suffix { color: var(--neon-green); font-size: 32px; }
.stat-label { font-size: 14px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 2px; margin-top: 8px; }

/* ============================================
   FEATURES / WHY CHOOSE US
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--neon-green);
  transform: scaleX(0);
  transition: var(--transition);
}
.feature-card:hover { border-color: var(--border-neon); transform: translateY(-6px); box-shadow: var(--shadow-card-hover); }
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
  width: 56px; height: 56px;
  background: rgba(57, 255, 20, 0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.feature-card:hover .feature-icon { background: rgba(57, 255, 20, 0.2); transform: scale(1.1); }
.feature-title { font-family: var(--font-heading); font-size: 22px; font-weight: 700; text-transform: uppercase; margin-bottom: 10px; }
.feature-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ============================================
   MEMBERSHIP CARDS
   ============================================ */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  align-items: center;
}
.membership-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.membership-card.popular {
  border-color: var(--neon-green);
  transform: scale(1.04);
  box-shadow: 0 0 40px rgba(57, 255, 20, 0.15);
}
.membership-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); border-color: var(--border-neon); }
.membership-card.popular:hover { transform: scale(1.04) translateY(-8px); }
.popular-badge {
  position: absolute;
  top: 0; right: 32px;
  background: var(--neon-green);
  color: #000;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 0 0 10px 10px;
}
.plan-name { font-family: var(--font-heading); font-size: 14px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 3px; margin-bottom: 12px; }
.plan-price { display: flex; align-items: flex-start; gap: 4px; margin-bottom: 8px; }
.plan-currency { font-size: 22px; font-weight: 700; color: var(--neon-green); margin-top: 8px; }
.plan-amount { font-family: var(--font-heading); font-size: 64px; font-weight: 900; color: var(--text-primary); line-height: 1; }
.plan-period { font-size: 14px; color: var(--text-secondary); margin-bottom: 28px; }
.plan-features { list-style: none; margin-bottom: 32px; display: flex; flex-direction: column; gap: 12px; }
.plan-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-secondary); }
.plan-features li .check { color: var(--neon-green); font-size: 16px; flex-shrink: 0; }
.plan-features li.disabled { opacity: 0.35; }
.plan-features li.disabled .check { color: var(--text-muted); }

/* ============================================
   TRAINER CARDS
   ============================================ */
.trainers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.trainer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  group: true;
}
.trainer-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-card-hover); border-color: var(--border-neon); }
.trainer-img-wrap {
  position: relative;
  height: 300px;
  overflow: hidden;
}
.trainer-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-slow); }
.trainer-card:hover .trainer-img-wrap img { transform: scale(1.08); }
.trainer-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.9) 0%, transparent 60%);
}
.trainer-social-links {
  position: absolute;
  top: 16px; right: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateX(20px);
  transition: var(--transition);
}
.trainer-card:hover .trainer-social-links { opacity: 1; transform: translateX(0); }
.social-link {
  width: 36px; height: 36px;
  background: rgba(0,0,0,0.7);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.social-link:hover { border-color: var(--neon-green); color: var(--neon-green); }
.trainer-info { padding: 24px; }
.trainer-name { font-family: var(--font-heading); font-size: 22px; font-weight: 700; text-transform: uppercase; margin-bottom: 4px; }
.trainer-role { font-size: 13px; color: var(--neon-green); font-weight: 600; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 12px; }
.trainer-bio { font-size: 13px; color: var(--text-secondary); margin-bottom: 16px; }
.trainer-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.trainer-tag {
  padding: 4px 12px;
  background: rgba(57, 255, 20, 0.08);
  border: 1px solid rgba(57, 255, 20, 0.2);
  border-radius: var(--radius-xl);
  font-size: 11px;
  color: var(--neon-green);
  font-weight: 500;
}

/* ============================================
   PRODUCT / SUPPLEMENT CARDS
   ============================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 24px;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.product-card:hover { transform: translateY(-8px); box-shadow: 0 20px 60px rgba(0,0,0,0.6); border-color: var(--border-neon); }
.product-badge {
  position: absolute;
  top: 12px; left: 12px;
  padding: 5px 12px;
  border-radius: var(--radius-xl);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  z-index: 2;
}
.badge-new { background: var(--neon-green); color: #000; }
.badge-hot { background: var(--accent-orange); color: #fff; }
.badge-sale { background: var(--accent-red); color: #fff; }
.product-img-wrap {
  height: 220px;
  overflow: hidden;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.product-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition-slow); }
.product-card:hover .product-img-wrap img { transform: scale(1.08); }
.product-quick-add {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,0.85);
  padding: 12px;
  transform: translateY(100%);
  transition: var(--transition);
  display: flex;
  gap: 8px;
}
.product-card:hover .product-quick-add { transform: translateY(0); }
.product-info { padding: 20px; }
.product-category { font-size: 11px; color: var(--neon-green); font-weight: 600; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 6px; }
.product-name { font-family: var(--font-heading); font-size: 20px; font-weight: 700; text-transform: uppercase; margin-bottom: 8px; }
.product-desc { font-size: 13px; color: var(--text-secondary); margin-bottom: 14px; line-height: 1.6; }
.product-rating { display: flex; align-items: center; gap: 6px; margin-bottom: 14px; }
.stars { color: #FFD700; font-size: 14px; letter-spacing: 2px; }
.rating-count { font-size: 12px; color: var(--text-muted); }
.product-footer { display: flex; align-items: center; justify-content: space-between; }
.product-price { display: flex; flex-direction: column; }
.price-current { font-family: var(--font-heading); font-size: 24px; font-weight: 700; color: var(--neon-green); }
.price-original { font-size: 13px; color: var(--text-muted); text-decoration: line-through; }
.btn-add-cart {
  padding: 10px 20px;
  background: var(--neon-green);
  color: #000;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-add-cart:hover { background: transparent; color: var(--neon-green); box-shadow: inset 0 0 0 2px var(--neon-green); }

/* Skeleton Loader */
.skeleton { background: linear-gradient(90deg, var(--bg-card) 25%, var(--bg-card-hover) 50%, var(--bg-card) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: var(--radius-sm); }
.skeleton-img { height: 220px; }
.skeleton-text { height: 14px; margin: 8px 0; border-radius: 4px; }
.skeleton-text.short { width: 60%; }

/* ============================================
   SCHEDULE TABLE
   ============================================ */
.schedule-table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border-color); }
.schedule-table { width: 100%; border-collapse: collapse; }
.schedule-table th {
  background: var(--bg-secondary);
  padding: 16px 20px;
  font-family: var(--font-heading);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--neon-green);
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}
.schedule-table td {
  padding: 14px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.schedule-table tr:hover td { background: var(--bg-card-hover); }
.schedule-table tr:last-child td { border-bottom: none; }
.class-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
}
.class-badge.yoga { background: rgba(138,43,226,0.2); color: #DA70D6; }
.class-badge.hiit { background: rgba(255,69,0,0.2); color: #FF6B35; }
.class-badge.strength { background: rgba(57,255,20,0.2); color: var(--neon-green); }
.class-badge.cardio { background: rgba(30,144,255,0.2); color: #1E90FF; }
.class-badge.boxing { background: rgba(255,69,0,0.2); color: #FF4500; }
.class-badge.spinning { background: rgba(255,165,0,0.2); color: #FFA500; }

/* ============================================
   BMI CALCULATOR
   ============================================ */
.bmi-section { background: var(--bg-secondary); }
.bmi-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.bmi-form-wrap { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 40px; }
.bmi-form .form-group { margin-bottom: 24px; }
.bmi-form label { display: block; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); margin-bottom: 8px; }
.bmi-form input, .bmi-form select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
}
.bmi-form input:focus, .bmi-form select:focus { border-color: var(--neon-green); box-shadow: 0 0 0 3px rgba(57,255,20,0.1); }
.bmi-result {
  display: none;
  margin-top: 24px;
  padding: 24px;
  background: rgba(57,255,20,0.05);
  border: 1px solid rgba(57,255,20,0.2);
  border-radius: var(--radius-md);
  text-align: center;
}
.bmi-result.show { display: block; }
.bmi-value { font-family: var(--font-heading); font-size: 64px; font-weight: 900; color: var(--neon-green); line-height: 1; }
.bmi-category { font-size: 18px; font-weight: 600; margin-top: 8px; }
.bmi-scale { display: flex; gap: 4px; margin-top: 16px; border-radius: var(--radius-xl); overflow: hidden; height: 8px; }
.bmi-scale-seg { flex: 1; }
.bmi-scale-seg.underweight { background: #3B82F6; }
.bmi-scale-seg.normal { background: var(--neon-green); }
.bmi-scale-seg.overweight { background: var(--accent-orange); }
.bmi-scale-seg.obese { background: var(--accent-red); }
.bmi-info { display: flex; flex-direction: column; gap: 20px; }
.bmi-info-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 24px; display: flex; align-items: center; gap: 20px; transition: var(--transition); }
.bmi-info-card:hover { border-color: var(--border-neon); }
.bmi-info-icon { font-size: 32px; }
.bmi-info-range { font-family: var(--font-heading); font-size: 20px; font-weight: 700; }
.bmi-info-label { font-size: 13px; color: var(--text-secondary); }

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials-section { background: var(--bg-primary); }
.testimonials-slider { position: relative; overflow: hidden; }
.testimonials-track { display: flex; gap: 24px; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.testimonial-card {
  min-width: calc(33.333% - 16px);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  flex-shrink: 0;
  transition: var(--transition);
}
.testimonial-card:hover { border-color: var(--border-neon); }
.testimonial-quote { font-size: 40px; color: var(--neon-green); line-height: 1; margin-bottom: 16px; opacity: 0.5; }
.testimonial-text { font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px; font-style: italic; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.testimonial-avatar { width: 48px; height: 48px; border-radius: 50%; background: var(--neon-green); display: flex; align-items: center; justify-content: center; font-size: 20px; font-weight: 700; color: #000; flex-shrink: 0; }
.testimonial-name { font-weight: 600; font-size: 15px; }
.testimonial-meta { font-size: 12px; color: var(--text-muted); }
.slider-controls { display: flex; align-items: center; gap: 12px; margin-top: 32px; justify-content: center; }
.slider-btn {
  width: 44px; height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  font-size: 18px;
  transition: var(--transition);
  cursor: pointer;
}
.slider-btn:hover { border-color: var(--neon-green); color: var(--neon-green); }
.slider-dots { display: flex; gap: 8px; }
.slider-dot { width: 8px; height: 8px; background: var(--border-color); border-radius: 50%; cursor: pointer; transition: var(--transition); }
.slider-dot.active { background: var(--neon-green); width: 24px; border-radius: 4px; }

/* ============================================
   NEWSLETTER / CTA
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, rgba(57,255,20,0.05) 0%, var(--bg-secondary) 100%);
  border-top: 1px solid var(--border-neon);
  border-bottom: 1px solid var(--border-neon);
  padding: 80px 0;
  text-align: center;
}
.newsletter-form {
  display: flex;
  max-width: 480px;
  margin: 32px auto 0;
  gap: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border-neon);
}
.newsletter-input {
  flex: 1;
  background: var(--bg-card);
  border: none;
  padding: 14px 20px;
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}
.newsletter-btn {
  padding: 14px 24px;
  background: var(--neon-green);
  color: #000;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}
.newsletter-btn:hover { background: var(--neon-green-dim); }

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  top: 90px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  min-width: 300px;
  max-width: 400px;
  pointer-events: all;
  animation: toast-in 0.4s ease forwards;
}
.toast.success { border-left: 3px solid var(--neon-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.info { border-left: 3px solid #3B82F6; }
.toast-icon { font-size: 20px; flex-shrink: 0; }
.toast-message { font-size: 14px; color: var(--text-primary); flex: 1; }
.toast-close { color: var(--text-muted); font-size: 18px; cursor: pointer; background: none; border: none; }
.toast-close:hover { color: var(--text-primary); }
.toast.hide { animation: toast-out 0.3s ease forwards; }

/* ============================================
   CART PAGE
   ============================================ */
.cart-page { padding-top: calc(var(--navbar-height) + 60px); padding-bottom: 80px; }
.cart-layout { display: grid; grid-template-columns: 1fr 360px; gap: 32px; align-items: start; }
.cart-table-wrap { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); overflow: hidden; }
.cart-table { width: 100%; border-collapse: collapse; }
.cart-table th { padding: 16px 20px; background: var(--bg-secondary); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 2px; color: var(--text-muted); text-align: left; border-bottom: 1px solid var(--border-color); }
.cart-table td { padding: 20px; border-bottom: 1px solid rgba(255,255,255,0.05); vertical-align: middle; }
.cart-table tr:last-child td { border-bottom: none; }
.cart-product { display: flex; align-items: center; gap: 16px; }
.cart-product-img { width: 70px; height: 70px; border-radius: var(--radius-sm); object-fit: cover; background: var(--bg-secondary); }
.cart-product-name { font-weight: 600; font-size: 15px; }
.cart-product-sub { font-size: 12px; color: var(--text-muted); }
.qty-control { display: flex; align-items: center; gap: 8px; }
.qty-btn { width: 30px; height: 30px; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); color: var(--text-primary); font-size: 16px; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: var(--transition); }
.qty-btn:hover { border-color: var(--neon-green); color: var(--neon-green); }
.qty-value { font-size: 15px; font-weight: 600; min-width: 24px; text-align: center; }
.cart-item-price { font-family: var(--font-heading); font-size: 20px; font-weight: 700; color: var(--neon-green); }
.cart-remove { color: var(--text-muted); font-size: 18px; cursor: pointer; transition: var(--transition); background: none; border: none; }
.cart-remove:hover { color: var(--accent-red); }
.cart-summary {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 28px;
  position: sticky;
  top: calc(var(--navbar-height) + 20px);
}
.summary-title { font-family: var(--font-heading); font-size: 22px; font-weight: 700; text-transform: uppercase; margin-bottom: 24px; }
.summary-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.05); font-size: 14px; color: var(--text-secondary); }
.summary-row:last-of-type { border-bottom: none; }
.summary-row.total { font-size: 18px; font-weight: 700; color: var(--text-primary); margin-top: 12px; padding-top: 16px; border-top: 1px solid var(--border-color); }
.summary-row .amount { font-family: var(--font-heading); font-size: 18px; font-weight: 700; color: var(--neon-green); }
.coupon-input-wrap { display: flex; gap: 8px; margin: 20px 0; }
.coupon-input { flex: 1; background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 10px 14px; color: var(--text-primary); font-size: 14px; outline: none; transition: var(--transition); }
.coupon-input:focus { border-color: var(--neon-green); }
.cart-empty { text-align: center; padding: 80px 40px; }
.cart-empty-icon { font-size: 64px; margin-bottom: 16px; opacity: 0.3; }
.cart-empty-title { font-family: var(--font-heading); font-size: 28px; font-weight: 700; text-transform: uppercase; margin-bottom: 8px; }
.cart-empty-text { font-size: 15px; color: var(--text-secondary); }

/* ============================================
   FORMS (Checkout, Contact, Login)
   ============================================ */
.form-page { padding-top: calc(var(--navbar-height) + 60px); padding-bottom: 80px; }
.form-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 48px; }
.form-title { font-family: var(--font-heading); font-size: 36px; font-weight: 800; text-transform: uppercase; margin-bottom: 8px; }
.form-subtitle { font-size: 15px; color: var(--text-secondary); margin-bottom: 36px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { display: block; font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); margin-bottom: 8px; }
.form-control {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text-primary);
  font-size: 15px;
  outline: none;
  transition: var(--transition);
  appearance: none;
}
.form-control:focus { border-color: var(--neon-green); box-shadow: 0 0 0 3px rgba(57,255,20,0.08); }
.form-control::placeholder { color: var(--text-muted); }
.form-control.error { border-color: var(--accent-red); }
.form-error { font-size: 12px; color: var(--accent-red); margin-top: 5px; display: none; }
.form-error.show { display: block; }
textarea.form-control { min-height: 120px; resize: vertical; }
.payment-options { display: flex; gap: 12px; flex-wrap: wrap; }
.payment-option { flex: 1; min-width: 100px; }
.payment-option input[type="radio"] { display: none; }
.payment-option label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  text-align: center;
}
.payment-option input:checked + label { border-color: var(--neon-green); color: var(--neon-green); background: rgba(57,255,20,0.05); }
.payment-option label:hover { border-color: var(--border-neon); }
.payment-icon { font-size: 24px; }

/* ============================================
   PAGE HEADER (Inner pages)
   ============================================ */
.page-header {
  padding: calc(var(--navbar-height) + 60px) 0 60px;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  border-bottom: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(57,255,20,0.04) 0%, transparent 70%);
}
.page-header-title { font-family: var(--font-heading); font-size: clamp(40px,7vw,72px); font-weight: 900; text-transform: uppercase; margin-bottom: 12px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text-muted); }
.breadcrumb a { color: var(--text-secondary); transition: var(--transition); }
.breadcrumb a:hover { color: var(--neon-green); }
.breadcrumb-sep { color: var(--text-muted); }

/* ============================================
   LOGIN/SIGNUP TABS
   ============================================ */
.auth-wrap { max-width: 520px; margin: 0 auto; }
.auth-tabs { display: flex; background: var(--bg-secondary); border-radius: var(--radius-sm); padding: 4px; margin-bottom: 36px; }
.auth-tab {
  flex: 1;
  padding: 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-muted);
}
.auth-tab.active { background: var(--neon-green); color: #000; }
.auth-panel { display: none; }
.auth-panel.active { display: block; }
.divider { display: flex; align-items: center; gap: 16px; margin: 24px 0; color: var(--text-muted); font-size: 12px; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--border-color); }

/* ============================================
   CONTACT PAGE
   ============================================ */
.contact-layout { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-info-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-md); padding: 32px; margin-bottom: 20px; transition: var(--transition); }
.contact-info-card:hover { border-color: var(--border-neon); }
.contact-info-icon { font-size: 28px; margin-bottom: 12px; }
.contact-info-title { font-family: var(--font-heading); font-size: 18px; font-weight: 700; text-transform: uppercase; margin-bottom: 8px; }
.contact-info-text { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.map-embed { border-radius: var(--radius-md); overflow: hidden; border: 1px solid var(--border-color); height: 260px; background: var(--bg-card); display: flex; align-items: center; justify-content: center; }

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 80px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 60px;
}
.footer-logo {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-logo span { color: var(--neon-green); }
.footer-tagline { font-size: 14px; color: var(--text-secondary); margin-bottom: 24px; line-height: 1.8; }
.footer-social { display: flex; gap: 10px; }
.footer-social-link {
  width: 40px; height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-social-link:hover { border-color: var(--neon-green); color: var(--neon-green); transform: translateY(-2px); }
.footer-heading { font-family: var(--font-heading); font-size: 16px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 20px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: var(--text-secondary); transition: var(--transition); }
.footer-links a:hover { color: var(--neon-green); padding-left: 6px; }
.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 13px; color: var(--text-muted); }
.footer-copy span { color: var(--neon-green); }

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-neon { color: var(--neon-green); }
.text-muted { color: var(--text-secondary); }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; } .mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; } .mb-4 { margin-bottom: 32px; }
.w-100 { width: 100%; }
.d-flex { display: flex; } .d-grid { display: grid; }
.align-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: 16px; } .gap-3 { gap: 24px; }
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .bmi-wrapper { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .testimonial-card { min-width: calc(50% - 12px); }
}
@media (max-width: 768px) {
  :root { --section-padding: 70px 0; }
  .navbar-nav { display: none; position: fixed; top: var(--navbar-height); left: 0; right: 0; background: rgba(10,10,10,0.98); border-bottom: 1px solid var(--border-color); flex-direction: column; padding: 16px; gap: 4px; backdrop-filter: blur(20px); }
  .navbar-nav.open { display: flex; }
  .hamburger { display: flex; }
  .btn-nav-cta { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: clamp(42px, 10vw, 72px); }
  .hero-stats { gap: 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .testimonial-card { min-width: calc(100%); }
  .membership-card.popular { transform: none; }
  .membership-card.popular:hover { transform: translateY(-8px); }
  .form-card { padding: 28px 20px; }
  .checkout-layout { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item::after { display: none; }
}