/* ==========================================================================
   REVIVE — Design System
   Editorial luxury wellness × brutalist athleticism
   ========================================================================== */

/* ---------- Reset / Normalize ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { line-height: 1.5; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; background: none; border: none; }
button { cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
::selection { background: var(--fire); color: var(--bg); }

/* ---------- Design Tokens ---------- */
:root {
  /* Colors — warm-tinted blacks, fire/ice accents, cream warmth */
  --bg: #0B0807;
  --bg-1: #110D0B;
  --bg-2: #161210;
  --surface: #1F1A17;
  --surface-2: #2A231F;
  --border: #2D2520;
  --border-strong: #3D332C;

  --text: #F5EFE7;
  --text-soft: #C9BEB0;
  --text-dim: #8E8377;
  --text-faint: #5C5247;

  --fire: #FF3819;             /* primary — energy, training */
  --fire-deep: #C5240A;
  --fire-glow: rgba(255, 56, 25, 0.22);

  --ice: #A7BAC0;              /* recovery — cool steel (desaturated, premium) */
  --ice-deep: #7E969E;
  --ice-glow: rgba(167, 186, 192, 0.16);

  --cream: #EAD9C0;            /* sauna wood, warm */
  --gold: #E6B33D;             /* premium · founders · exclusivity */
  --gold-deep: #B0832A;
  --gold-soft: #F2D588;
  --gold-glow: rgba(230, 179, 61, 0.24);

  /* Typography */
  --font-display: 'Anton', 'Impact', sans-serif;
  --font-editorial: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;

  /* Spacing scale */
  --s-1: 0.25rem;
  --s-2: 0.5rem;
  --s-3: 0.75rem;
  --s-4: 1rem;
  --s-5: 1.5rem;
  --s-6: 2rem;
  --s-7: 3rem;
  --s-8: 4rem;
  --s-9: 6rem;
  --s-10: 8rem;
  --s-11: 12rem;

  /* Type scale */
  --fs-mono: 0.6875rem;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.375rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.5rem;
  --fs-4xl: 3.5rem;
  --fs-5xl: 5rem;
  --fs-6xl: 7rem;
  --fs-7xl: 10rem;

  /* Layout */
  --max-w: 1440px;
  --gutter: clamp(1rem, 4vw, 3rem);

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-fast: 200ms;
  --dur: 400ms;
  --dur-slow: 800ms;
}

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  font-weight: 400;
  letter-spacing: -0.005em;
  overflow-x: hidden;
  position: relative;
}

/* Subtle film grain overlay across whole site */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.4 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  opacity: 0.45;
  pointer-events: none;
  z-index: 100;
  mix-blend-mode: overlay;
}

/* ---------- Typography ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.editorial {
  font-family: var(--font-editorial);
  font-style: italic;
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.015em;
}

.mono {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: var(--fs-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1, h2, h3, h4 { font-weight: 400; }

.h-mega { font-family: var(--font-display); font-size: clamp(4rem, 16vw, 14rem); line-height: 0.86; letter-spacing: -0.015em; text-transform: uppercase; }
.h-1   { font-family: var(--font-display); font-size: clamp(3rem, 10vw, 8rem); line-height: 0.88; letter-spacing: -0.01em; text-transform: uppercase; }
.h-2   { font-family: var(--font-display); font-size: clamp(2.25rem, 6vw, 5rem); line-height: 0.92; letter-spacing: -0.005em; text-transform: uppercase; }
.h-3   { font-family: var(--font-display); font-size: clamp(1.75rem, 4vw, 3rem); line-height: 0.95; text-transform: uppercase; }
.h-4   { font-family: var(--font-display); font-size: clamp(1.25rem, 2.5vw, 1.875rem); line-height: 1; text-transform: uppercase; letter-spacing: 0.01em; }

.lead {
  font-size: clamp(1.1rem, 1.5vw, 1.5rem);
  line-height: 1.45;
  color: var(--text-soft);
  font-weight: 300;
  max-width: 60ch;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--fire);
}

/* ---------- Layout primitives ---------- */
.wrap { max-width: var(--max-w); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: clamp(4rem, 10vw, 9rem) 0; position: relative; }
.section-tight { padding: clamp(3rem, 6vw, 6rem) 0; }
.divider { height: 1px; background: var(--border); width: 100%; }

.grid { display: grid; gap: var(--s-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-12 { grid-template-columns: repeat(12, 1fr); gap: var(--gutter); }

@media (max-width: 900px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .grid-12 { grid-template-columns: repeat(6, 1fr); }
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: var(--s-5) var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--dur), backdrop-filter var(--dur), border-color var(--dur);
  border-bottom: 1px solid transparent;
  mix-blend-mode: difference;
}
.nav.scrolled {
  background: rgba(11, 8, 7, 0.78);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--border);
  mix-blend-mode: normal;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.nav-brand::after {
  content: 'FW';
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.2em;
  color: var(--fire);
  border: 1px solid var(--fire);
  padding: 2px 5px;
  margin-top: 4px;
}
.nav-links {
  display: flex;
  gap: var(--s-7);
  align-items: center;
}
.nav-link {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text);
  position: relative;
  transition: color var(--dur-fast);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--fire);
  transition: width var(--dur) var(--ease-out);
}
.nav-link:hover::after, .nav-link[aria-current="page"]::after { width: 100%; }
.nav-link[aria-current="page"] { color: var(--fire); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--text);
  padding: 0.7rem 1.2rem;
  border: 1px solid var(--text);
  transition: all var(--dur-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
}
.nav-cta:hover { background: var(--fire); border-color: var(--fire); color: var(--text); }

.nav-toggle { display: none; }
@media (max-width: 800px) {
  .nav-links { display: none; position: fixed; top: 70px; left: 0; right: 0; bottom: 0; background: var(--bg); flex-direction: column; padding: var(--s-8) var(--gutter); justify-content: flex-start; gap: var(--s-6); border-top: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-link { font-size: 2rem; font-family: var(--font-display); letter-spacing: 0; }
  .nav-link::after { display: none; }
  .nav-toggle { display: flex; flex-direction: column; gap: 5px; padding: 8px; }
  .nav-toggle span { width: 24px; height: 1.5px; background: var(--text); transition: all var(--dur-fast); }
  .nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
  .nav-cta { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 1.1rem 1.6rem;
  border: 1px solid currentColor;
  background: transparent;
  color: var(--text);
  position: relative;
  overflow: hidden;
  transition: color var(--dur) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  transform: translateY(101%);
  transition: transform var(--dur) var(--ease-out);
  z-index: -1;
}
.btn:hover { color: var(--bg); }
.btn:hover::before { transform: translateY(0); }

.btn-fire { color: var(--fire); border-color: var(--fire); }
.btn-fire:hover { color: var(--text); }
.btn-fire::before { background: var(--fire); }

.btn-primary {
  color: var(--bg);
  background: var(--text);
  border-color: var(--text);
}
.btn-primary::before { background: var(--fire); }
.btn-primary:hover { color: var(--text); border-color: var(--fire); }

.btn-arrow::after {
  content: '→';
  font-family: var(--font-body);
  font-size: 1rem;
  letter-spacing: 0;
  transition: transform var(--dur-fast);
}
.btn-arrow:hover::after { transform: translateX(4px); }

/* Gold button variant (founders / premium) */
.btn-gold { color: var(--gold); border-color: var(--gold); }
.btn-gold:hover { color: var(--bg); }
.btn-gold::before { background: var(--gold); }

/* ---------- Section background treatments (mixed palette) ---------- */
.sec-gray {
  background: var(--surface);
  border-block: 1px solid var(--border);
}
.sec-gold {
  background:
    radial-gradient(130% 110% at 82% 0%, var(--gold-glow), transparent 55%),
    linear-gradient(180deg, rgba(230, 179, 61, 0.06), var(--bg-1));
  border-block: 1px solid rgba(230, 179, 61, 0.24);
}
.sec-red {
  background:
    radial-gradient(130% 110% at 50% 0%, var(--fire-glow), transparent 55%),
    linear-gradient(180deg, rgba(197, 36, 10, 0.12), var(--bg));
  border-block: 1px solid rgba(255, 56, 25, 0.22);
}

/* ---------- Cards & surfaces ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: var(--s-7);
  position: relative;
  transition: border-color var(--dur), transform var(--dur);
}
.card:hover { border-color: var(--border-strong); }

/* Decorative corner brackets */
.bracket {
  position: relative;
  padding: var(--s-7);
}
.bracket::before, .bracket::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--fire);
}
.bracket::before { top: 0; left: 0; border-right: none; border-bottom: none; }
.bracket::after { bottom: 0; right: 0; border-left: none; border-top: none; }

/* ---------- Forms ---------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--s-2);
}
.label {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.input, .textarea {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--border-strong);
  padding: var(--s-4) 0;
  font-family: var(--font-body);
  font-size: var(--fs-lg);
  color: var(--text);
  outline: none;
  transition: border-color var(--dur-fast);
}
.input:focus, .textarea:focus { border-bottom-color: var(--fire); }
.input::placeholder, .textarea::placeholder { color: var(--text-faint); }
.checkbox-row {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  padding: var(--s-3) 0;
  font-size: var(--fs-sm);
  color: var(--text-soft);
  cursor: pointer;
}
.checkbox-row input[type="checkbox"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--border-strong);
  position: relative;
  cursor: pointer;
  flex-shrink: 0;
}
.checkbox-row input[type="checkbox"]:checked { background: var(--fire); border-color: var(--fire); }
.checkbox-row input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--bg);
  font-size: 12px;
  font-weight: bold;
}

/* ---------- Hero patterns ---------- */
.hero {
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.hero-image {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,8,7,0.55) 0%, rgba(11,8,7,0.35) 40%, rgba(11,8,7,0.95) 100%);
}
.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: contrast(1.1) saturate(0.95) brightness(0.85);
}

/* ---------- Scroll-triggered reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
[data-reveal].in { opacity: 1; transform: none; }
[data-reveal][data-delay="1"] { transition-delay: 80ms; }
[data-reveal][data-delay="2"] { transition-delay: 160ms; }
[data-reveal][data-delay="3"] { transition-delay: 240ms; }
[data-reveal][data-delay="4"] { transition-delay: 320ms; }
[data-reveal][data-delay="5"] { transition-delay: 400ms; }

/* ---------- Marquee ---------- */
.marquee {
  display: flex;
  overflow: hidden;
  white-space: nowrap;
  padding: var(--s-6) 0;
  border-block: 1px solid var(--border);
  background: var(--bg-1);
}
.marquee-track {
  display: flex;
  gap: var(--s-7);
  animation: marquee 32s linear infinite;
  flex-shrink: 0;
  padding-right: var(--s-7);
}
.marquee-item {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 5rem);
  text-transform: uppercase;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: var(--s-7);
}
.marquee-item::after {
  content: '✸';
  color: var(--gold);
  font-size: 0.6em;
}
@keyframes marquee {
  to { transform: translateX(-100%); }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-1);
  border-top: 1px solid var(--border);
  padding: var(--s-9) 0 var(--s-6);
  position: relative;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--s-7);
  margin-bottom: var(--s-9);
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-brand {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 0.9;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: var(--s-5);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--s-3); }
.footer-col a { color: var(--text-soft); transition: color var(--dur-fast); }
.footer-col a:hover { color: var(--fire); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: end;
  padding-top: var(--s-6);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.footer-bottom a { color: var(--text-dim); }
.footer-bottom a:hover { color: var(--fire); }

/* ---------- Utility ---------- */
.text-fire { color: var(--fire); }
.text-ice { color: var(--ice); }
.text-cream { color: var(--cream); }
.text-gold { color: var(--gold); }
.text-dim { color: var(--text-dim); }
.text-faint { color: var(--text-faint); }
.text-soft { color: var(--text-soft); }
.italic { font-style: italic; }
.center { text-align: center; }
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--s-2); }
.gap-3 { gap: var(--s-3); }
.gap-4 { gap: var(--s-4); }
.gap-6 { gap: var(--s-6); }
.gap-8 { gap: var(--s-8); }
.mt-2 { margin-top: var(--s-2); }
.mt-3 { margin-top: var(--s-3); }
.mt-4 { margin-top: var(--s-4); }
.mt-5 { margin-top: var(--s-5); }
.mt-6 { margin-top: var(--s-6); }
.mt-7 { margin-top: var(--s-7); }
.mt-8 { margin-top: var(--s-8); }

/* ---------- Page transitions ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.fade-up { animation: fadeUp 1.2s var(--ease-out) both; }

/* Stagger helpers */
.stagger > * { opacity: 0; transform: translateY(20px); animation: fadeUp 1s var(--ease-out) forwards; }
.stagger > *:nth-child(1) { animation-delay: 0.1s; }
.stagger > *:nth-child(2) { animation-delay: 0.2s; }
.stagger > *:nth-child(3) { animation-delay: 0.3s; }
.stagger > *:nth-child(4) { animation-delay: 0.4s; }
.stagger > *:nth-child(5) { animation-delay: 0.5s; }
.stagger > *:nth-child(6) { animation-delay: 0.6s; }

/* Scroll counter (loops) */
.scroll-indicator {
  position: absolute;
  bottom: var(--s-7);
  left: var(--gutter);
  z-index: 5;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.2em;
  color: var(--text-soft);
  display: flex;
  align-items: center;
  gap: var(--s-3);
}
.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--fire), transparent);
  animation: pulseDown 2s infinite;
}
@keyframes pulseDown {
  0%, 100% { transform: scaleY(0.6); transform-origin: top; opacity: 0.5; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- Page header (used on inner pages) ---------- */
.page-header {
  padding: 12rem 0 var(--s-9);
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.page-header::before {
  content: '';
  position: absolute;
  top: 50%;
  right: -10%;
  width: 60%;
  height: 200%;
  background: radial-gradient(ellipse, var(--fire-glow) 0%, transparent 60%);
  filter: blur(60px);
  pointer-events: none;
}