/* Iron Pulse Fitness — Gym demo (High-energy, dark mode, neon accents) */
:root {
  --gym-black: #0a0a0a;
  --gym-carbon: #141414;
  --gym-surface: #1a1a1a;
  --gym-border: #2a2a2a;
  --gym-neon: #ccff00;
  --gym-neon-dark: #a8d900;
  --gym-red: #ff3333;
  --gym-white: #ffffff;
  --gym-muted: #888888;
  --gym-text: #e0e0e0;
  --gym-font-display: 'Oswald', system-ui, sans-serif;
  --gym-font-body: 'Inter', system-ui, sans-serif;
  --demo-banner-height: 2.75rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--gym-font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gym-text);
  background: var(--gym-black);
}
img, svg { display: block; max-width: 100%; }
a { color: var(--gym-neon); text-decoration: none; transition: color 150ms ease; }
a:hover { color: var(--gym-white); }
h1, h2, h3, h4 {
  font-family: var(--gym-font-display);
  line-height: 1.1;
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--gym-white);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Header */
.gym-header {
  position: sticky;
  top: var(--demo-banner-height);
  z-index: 50;
  background: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 2px solid var(--gym-neon);
}
.gym-header__inner {
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.25rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.gym-logo {
  font-family: var(--gym-font-display);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--gym-white);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.gym-logo span { color: var(--gym-neon); }
.gym-nav { display: none; gap: 0.5rem; }
@media (min-width: 768px) { .gym-nav { display: flex; } }
.gym-nav a {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gym-muted);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--gym-font-display);
}
.gym-nav a:hover { color: var(--gym-neon); }
.gym-header__cta {
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gym-black);
  background: var(--gym-neon);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--gym-font-display);
  clip-path: polygon(5% 0, 100% 0, 95% 100%, 0% 100%);
  transition: background 150ms ease;
}
.gym-header__cta:hover { background: var(--gym-white); color: var(--gym-black); }

/* Hero */
.gym-hero {
  position: relative;
  padding: 6rem 1.25rem 7rem;
  background: 
    linear-gradient(135deg, rgba(10, 10, 10, 0.9) 0%, rgba(20, 20, 20, 0.8) 100%),
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,0.02) 10px, rgba(255,255,255,0.02) 20px);
  color: var(--gym-white);
  overflow: hidden;
  border-bottom: 4px solid var(--gym-neon);
}
.gym-hero__inner { position: relative; max-width: 72rem; margin: 0 auto; }
.gym-hero__badge {
  display: inline-block;
  padding: 0.375rem 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gym-black);
  background: var(--gym-neon);
  font-family: var(--gym-font-display);
}
.gym-hero__title {
  font-size: clamp(2.5rem, 8vw, 5rem);
  color: var(--gym-white);
  margin-bottom: 1.25rem;
  max-width: 16ch;
}
.gym-hero__title span { 
  color: var(--gym-neon); 
  display: block;
}
.gym-hero__subtitle {
  font-size: 1.125rem;
  color: var(--gym-muted);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 42ch;
  text-transform: none;
  font-family: var(--gym-font-body);
  font-weight: 400;
  letter-spacing: normal;
}
.gym-hero__btn {
  display: inline-flex;
  padding: 1rem 2.5rem;
  font-weight: 700;
  color: var(--gym-black);
  background: var(--gym-neon);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-size: 1rem;
  font-family: var(--gym-font-display);
  clip-path: polygon(3% 0, 100% 0, 97% 100%, 0% 100%);
  transition: transform 150ms ease, background 150ms ease;
}
.gym-hero__btn:hover { background: var(--gym-white); transform: translateY(-2px); color: var(--gym-black); }

/* Sections */
.gym-section { padding: 5rem 1.25rem; }
.gym-section--alt { background: var(--gym-carbon); }
.gym-section__inner { max-width: 72rem; margin: 0 auto; }
.gym-section__header { margin-bottom: 3.5rem; border-left: 4px solid var(--gym-neon); padding-left: 1.5rem; }
.gym-section__title { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 0.5rem; }
.gym-section__subtitle { color: var(--gym-muted); max-width: 42ch; margin: 0; font-size: 1.0625rem; text-transform: none; font-family: var(--gym-font-body); font-weight: 400; letter-spacing: normal;}

/* Programs Grid */
.gym-programs { display: grid; gap: 1.5rem; }
@media (min-width: 640px) { .gym-programs { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .gym-programs { grid-template-columns: repeat(4, 1fr); } }

.gym-program {
  background: var(--gym-surface);
  border: 1px solid var(--gym-border);
  padding: 2rem 1.5rem;
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease;
  position: relative;
  overflow: hidden;
}
.gym-program::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 4px;
  background: var(--gym-neon);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 300ms ease;
}
.gym-program:hover { transform: translateY(-4px); border-color: var(--gym-neon); background: #1f1f1f; }
.gym-program:hover::before { transform: scaleX(1); }
.gym-program__icon {
  font-size: 2.5rem;
  margin-bottom: 1.25rem;
  filter: grayscale(100%) contrast(1.5);
}
.gym-program__title { font-size: 1.5rem; margin-bottom: 0.75rem; color: var(--gym-white); }
.gym-program__desc { font-size: 0.875rem; color: var(--gym-muted); margin: 0; line-height: 1.6; text-transform: none; font-family: var(--gym-font-body); font-weight: 400; letter-spacing: normal;}

/* AI Trainer Hook */
.gym-ai {
  background: var(--gym-red);
  color: var(--gym-white);
  padding: 3rem 2rem;
  display: grid;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
  clip-path: polygon(0 0, 100% 0, 100% 90%, 98% 100%, 0 100%);
}
@media (min-width: 768px) { .gym-ai { grid-template-columns: 1fr 1fr; padding: 4rem; } }
.gym-ai__icon {
  width: 4.5rem;
  height: 4.5rem;
  background: var(--gym-black);
  color: var(--gym-neon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 1rem;
  border: 2px solid var(--gym-white);
}
.gym-ai__title { font-size: 2.25rem; color: var(--gym-white); margin-bottom: 1rem; }
.gym-ai__text { color: rgba(255, 255, 255, 0.9); margin-bottom: 1.5rem; line-height: 1.7; text-transform: none; font-family: var(--gym-font-body); font-weight: 400; letter-spacing: normal;}
.gym-ai__features { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.75rem; }
.gym-ai__features li { 
  display: flex; 
  align-items: center; 
  gap: 0.75rem; 
  font-size: 1rem; 
  color: var(--gym-white); 
  font-family: var(--gym-font-display);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.gym-ai__features li::before { content: '⚡'; color: var(--gym-neon); font-size: 1.25rem; }

/* Pricing / Membership */
.gym-tiers { display: grid; gap: 1.5rem; }
@media (min-width: 768px) { .gym-tiers { grid-template-columns: repeat(3, 1fr); } }
.gym-tier {
  background: var(--gym-surface);
  border: 1px solid var(--gym-border);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: border-color 200ms ease;
}
.gym-tier--featured { border: 2px solid var(--gym-neon); background: #1c2415; }
.gym-tier__name { font-size: 1.5rem; margin-bottom: 0.5rem; }
.gym-tier__price { font-family: var(--gym-font-display); font-size: 3rem; font-weight: 700; color: var(--gym-neon); margin-bottom: 0.25rem; line-height: 1; }
.gym-tier__period { font-size: 0.875rem; color: var(--gym-muted); margin-bottom: 2rem; text-transform: uppercase; font-family: var(--gym-font-display);}
.gym-tier__features { list-style: none; padding: 0; margin: 0 0 2rem; text-align: left; }
.gym-tier__features li { padding: 0.5rem 0; font-size: 0.875rem; color: var(--gym-text); border-bottom: 1px solid var(--gym-border); display: flex; align-items: center; gap: 0.5rem; text-transform: none; font-family: var(--gym-font-body); letter-spacing: normal;}
.gym-tier__features li::before { content: '✓'; color: var(--gym-neon); font-weight: bold; }
.gym-tier__btn {
  display: block;
  padding: 0.875rem;
  font-weight: 700;
  color: var(--gym-black);
  background: var(--gym-neon);
  text-decoration: none;
  text-transform: uppercase;
  font-family: var(--gym-font-display);
  letter-spacing: 0.05em;
  transition: background 150ms ease;
}
.gym-tier__btn:hover { background: var(--gym-white); color: var(--gym-black); }
.gym-tier--featured .gym-tier__btn { background: var(--gym-white); color: var(--gym-black); }
.gym-tier--featured .gym-tier__btn:hover { background: var(--gym-neon); }

/* Footer */
.gym-footer {
  background: var(--gym-black);
  color: var(--gym-muted);
  padding: 4rem 1.25rem 2rem;
  border-top: 4px solid var(--gym-neon);
}
.gym-footer__inner { max-width: 72rem; margin: 0 auto; display: grid; gap: 2rem; }
@media (min-width: 768px) { .gym-footer__inner { grid-template-columns: 2fr 1fr 1fr; } }
.gym-footer__brand { font-family: var(--gym-font-display); font-size: 1.75rem; color: var(--gym-white); margin-bottom: 0.75rem; text-transform: uppercase; }
.gym-footer__brand span { color: var(--gym-neon); }
.gym-footer__text { font-size: 0.875rem; line-height: 1.7; margin: 0; max-width: 32ch; text-transform: none; font-family: var(--gym-font-body); letter-spacing: normal;}
.gym-footer__heading { font-size: 1rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; color: var(--gym-white); margin-bottom: 1rem; font-family: var(--gym-font-display); }
.gym-footer__links { list-style: none; padding: 0; margin: 0; font-size: 0.875rem; }
.gym-footer__links li { margin-bottom: 0.5rem; }
.gym-footer__links a { color: var(--gym-muted); text-decoration: none; text-transform: none; font-family: var(--gym-font-body); letter-spacing: normal;}
.gym-footer__links a:hover { color: var(--gym-neon); }
.gym-footer__bottom { max-width: 72rem; margin: 3rem auto 0; padding-top: 1.5rem; border-top: 1px solid var(--gym-border); font-size: 0.8125rem; text-align: center; }