/* ═══════════════════════════════════════════════════════════
   TRIONDA — Three Nations, One Wave
   Palette derived strictly from the ball.
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #0A0B0D;
  --ink: #EFEDE6;
  --ink-dim: rgba(239, 237, 230, 0.55);
  --ink-faint: rgba(239, 237, 230, 0.28);
  --red: #C8102E;
  --red-hot: #E03A4E;
  --green: #0B8A3C;
  --green-hot: #12A150;
  --blue: #1E4FBF;
  --blue-sky: #38B6E8;
  --blue-hot: #3B6FE0;
  --gold: #C9A24B;
  --gold-bright: #E8C56E;
  --accent: #C9A24B;               /* chapter-keyed, tweened by JS */
  --glass: rgba(239, 237, 230, 0.04);
  --glass-border: rgba(239, 237, 230, 0.12);
  --font-display: "Anton", "Arial Narrow", sans-serif;
  --font-body: "Space Grotesk", "Helvetica Neue", sans-serif;
  --ease-out: cubic-bezier(0.19, 1, 0.22, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: auto; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ambient chapter glow — follows the accent variable */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(52vw 52vw at 72% 42%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 70%),
    radial-gradient(90vw 60vh at 50% 110%, rgba(239,237,230,0.03), transparent 70%);
  transition: none;
}

::selection { background: var(--gold); color: var(--bg); }

a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 1px solid var(--gold-bright);
  outline-offset: 4px;
  border-radius: 2px;
}

/* ═══════════ PRELOADER ═══════════ */

.preloader {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  transition: opacity 0.7s var(--ease-out), visibility 0.7s;
}
.preloader.done { opacity: 0; visibility: hidden; }

.preloader-wave { width: min(320px, 70vw); overflow: visible; }
.preloader-wave path { stroke-width: 2; stroke-linecap: round; fill: none; }
.wave-track { stroke: rgba(239, 237, 230, 0.08); }
.wave-fill {
  stroke: url(#waveGrad);
  stroke: var(--gold);
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.preloader-label {
  font-size: 0.7rem;
  letter-spacing: 0.35em;
  color: var(--ink-dim);
  font-weight: 400;
}

/* ═══════════ PROGRESS RAIL ═══════════ */

.progress-rail {
  position: fixed;
  top: 0; right: 0;
  width: 3px; height: 100vh;
  z-index: 60;
  background: rgba(239, 237, 230, 0.05);
}
.progress-line {
  width: 100%; height: 100%;
  background: linear-gradient(180deg, var(--red) 0%, var(--gold) 34%, var(--green) 50%, var(--gold) 66%, var(--blue-sky) 100%);
  transform-origin: top;
  transform: scaleY(0);
}

/* ═══════════ CANVAS ═══════════ */

#gl {
  position: fixed;
  inset: 0;
  width: 100vw; height: 100vh;
  z-index: 2;                /* above hero display type → ball occludes it */
  pointer-events: none;
  opacity: 0;
}

/* ═══════════ NAV ═══════════ */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.2rem, 4vw, 3rem);
  background: linear-gradient(180deg, rgba(10,11,13,0.55), rgba(10,11,13,0));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid;
  border-image: linear-gradient(90deg, transparent, var(--glass-border), transparent) 1;
  opacity: 0;
  transform: translateY(-12px);
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  display: flex;
  align-items: center;
  gap: 0.55rem;
}
.logo-mark {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: conic-gradient(var(--red) 0 33%, var(--green) 33% 66%, var(--blue-sky) 66% 100%);
  box-shadow: 0 0 12px rgba(201, 162, 75, 0.5);
}
.logo-year { color: var(--gold); margin-left: 0.15em; }

.nav-links { display: flex; gap: clamp(1.2rem, 3vw, 2.6rem); }
.nav-links a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  position: relative;
  padding: 0.3rem 0;
  transition: color 0.35s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

/* ═══════════ CTA — the one solid element ═══════════ */

.cta {
  display: inline-block;
  background: var(--gold);
  color: #14100a;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.85rem 1.7rem;
  border: none;
  border-radius: 2px;
  cursor: pointer;
  transition: background 0.3s, box-shadow 0.3s;
  will-change: transform;
}
.cta:hover { background: var(--gold-bright); box-shadow: 0 6px 32px rgba(201, 162, 75, 0.35); }
.cta-nav { padding: 0.65rem 1.3rem; opacity: 0; }

/* ═══════════ SHARED SECTION BITS ═══════════ */

main { position: relative; }   /* NO z-index — hero type must stay behind the canvas */

section { position: relative; }

/* content that must ride ABOVE the ball canvas */
.section-tag, .section-title, .counters, .constellation-wrap,
.finale-content, .footer {
  position: relative;
  z-index: 6;
}

.section-tag {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.4rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  line-height: 0.95;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  font-weight: 400;
}

[data-reveal] { opacity: 0; }
[data-reveal].in { opacity: 1; }

/* ═══════════ 01 · HERO ═══════════ */

.hero {
  height: 100vh;
  min-height: 640px;
  overflow: hidden;
}

.hero-title {
  position: absolute;
  z-index: 1;                    /* BEHIND the canvas — ball occludes type */
  top: 50%; left: 50%;
  transform: translate(-50%, -58%);
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(4.5rem, 16.5vw, 19rem);
  letter-spacing: 0.02em;
  line-height: 1;
  white-space: nowrap;
  color: var(--ink);
  user-select: none;
}

.hero-sub {
  position: absolute;
  z-index: 5;
  left: clamp(1.2rem, 4vw, 3rem);
  top: 66%;
  max-width: 30rem;
}
.hero-sub p:first-child {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 400;
  letter-spacing: 0.04em;
}
.hero-sub-small {
  margin-top: 0.6rem;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  color: var(--ink-dim);
  text-transform: uppercase;
}

/* blur-fade-up line machinery */
.line { display: block; overflow: visible; }
.line-inner {
  display: inline-block;
  opacity: 0;
  transform: translateY(24px);
  filter: blur(8px);
}

.hero-meta {
  position: absolute;
  z-index: 5;
  left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: flex-end;
  gap: clamp(1.4rem, 4vw, 3.5rem);
  padding: 3.5rem clamp(1.2rem, 4vw, 3rem) 1.6rem;
  background: linear-gradient(180deg, transparent, rgba(10, 11, 13, 0.88) 62%);
  opacity: 0;
}
.meta-item { display: flex; flex-direction: column; gap: 0.3rem; }
.meta-k {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}
.meta-v { font-size: 0.88rem; font-weight: 400; letter-spacing: 0.05em; }

.scroll-hint {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.62rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.scroll-hint-line {
  width: 1px; height: 44px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: hintPulse 2.2s ease-in-out infinite;
}
@keyframes hintPulse {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ═══════════ 02 · DECONSTRUCTED ═══════════ */

.ball-section { height: 420vh; }

.pin {
  position: relative;
  height: 100vh;
  overflow: hidden;
  padding: clamp(5.5rem, 12vh, 8rem) clamp(1.2rem, 4vw, 3rem) 0;
}

.callout {
  position: absolute;
  z-index: 6;
  max-width: 17rem;
  opacity: 0;
  visibility: hidden;
}
.callout h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold-bright);
  margin-bottom: 0.5rem;
}
.callout p { font-size: 0.85rem; line-height: 1.65; color: var(--ink-dim); }
.co-line {
  display: block;
  height: 1px;
  width: 72px;
  margin-bottom: 0.9rem;
  background: linear-gradient(90deg, var(--gold), transparent);
  box-shadow: 0 0 8px rgba(201,162,75,0.4);
}

.co-1 { top: 48%; left: clamp(1.2rem, 6vw, 6rem); }
.co-2 { bottom: 20%; left: clamp(1.2rem, 10vw, 12rem); }
.co-3 { top: 24%; right: clamp(1.2rem, 6vw, 6rem); text-align: right; }
.co-3 .co-line { margin-left: auto; background: linear-gradient(270deg, var(--gold), transparent); }
.co-4 { bottom: 18%; right: clamp(1.2rem, 8vw, 9rem); text-align: right; }
.co-4 .co-line { margin-left: auto; background: linear-gradient(270deg, var(--gold), transparent); }

/* ═══════════ 03–05 · NATIONS ═══════════ */

.nation {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem clamp(1.2rem, 4vw, 3rem);
  overflow: hidden;
}

.nation-bg {
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--font-display);
  font-size: clamp(6rem, 21vw, 24rem);
  letter-spacing: 0.04em;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px rgba(239, 237, 230, 0.07);
  user-select: none;
  white-space: nowrap;
}

.nation-content { position: relative; z-index: 6; max-width: 34rem; }
.nation-mexico .nation-content { margin-left: auto; text-align: right; }
.nation-mexico .nation-facts { justify-content: flex-end; }
.nation-mexico .nation-icon { margin-left: auto; }

.nation-icon {
  width: 54px; height: 54px;
  display: block;
  margin-bottom: 1.2rem;
  fill: none;
  stroke: var(--gold);
  stroke-width: 2;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 10px rgba(201, 162, 75, 0.35));
}

.nation-name {
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 9vw, 8rem);
  font-weight: 400;
  line-height: 0.95;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}

.nation-lede {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  line-height: 1.7;
  color: var(--ink-dim);
  margin-bottom: 2.4rem;
  max-width: 28rem;
}
.nation-mexico .nation-lede { margin-left: auto; }

.nation-facts { display: flex; gap: 2.6rem; }
.fact { display: flex; flex-direction: column; gap: 0.35rem; }
.fact-k {
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}
.fact-v { font-size: 0.95rem; font-weight: 400; letter-spacing: 0.04em; }

/* per-nation accent tint on name */
.nation-canada .nation-name { color: var(--red-hot); }
.nation-mexico .nation-name { color: var(--green-hot); }
.nation-usa .nation-name { color: var(--blue-hot); }

/* ═══════════ 06 · TOURNAMENT ═══════════ */

.tournament {
  min-height: 100vh;
  padding: 10rem clamp(1.2rem, 4vw, 3rem) 8rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.counters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(2rem, 7vw, 6rem);
  margin: 4.5rem 0 5rem;
}
.counter { display: flex; flex-direction: column; gap: 0.5rem; }
.counter-num {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 8vw, 7rem);
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}
.counter:nth-child(1) .counter-num { color: var(--red-hot); }
.counter:nth-child(2) .counter-num { color: var(--gold); }
.counter:nth-child(3) .counter-num { color: var(--green-hot); }
.counter:nth-child(4) .counter-num { color: var(--blue-sky); }
.counter-label {
  font-size: 0.68rem;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
}

.constellation-wrap { width: min(560px, 88vw); }
.constellation { width: 100%; height: auto; overflow: visible; }
.c-lines path {
  stroke: rgba(201, 162, 75, 0.35);
  stroke-width: 1;
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
}
.c-dots circle {
  fill: var(--ink);
  opacity: 0.9;
}
.c-dots circle:nth-child(4n+1) { fill: var(--red-hot); }
.c-dots circle:nth-child(4n+2) { fill: var(--green-hot); }
.c-dots circle:nth-child(4n+3) { fill: var(--blue-sky); }
.c-dots circle:nth-child(4n) { fill: var(--gold); }
.c-labels text {
  font-family: var(--font-body);
  font-size: 9px;
  letter-spacing: 0.2em;
  fill: var(--ink-faint);
}

/* ═══════════ 07 · FINALE ═══════════ */

.finale {
  min-height: 130vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.finale-content {
  position: relative;
  z-index: 6;
  text-align: center;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14vh clamp(1.2rem, 4vw, 3rem) 9vh;
}

.finale-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 7rem);
  line-height: 0.98;
  text-transform: uppercase;
  font-weight: 400;
}
.finale-bottom { display: flex; flex-direction: column; gap: 1.2rem; }

.finale-form {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.finale-form input {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  border-radius: 2px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  padding: 0.85rem 1.2rem;
  width: min(20rem, 70vw);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.3s;
}
.finale-form input::placeholder { color: var(--ink-faint); }
.finale-form input:focus { border-color: var(--gold); outline: none; }

.finale-note {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ═══════════ FOOTER ═══════════ */

.footer {
  position: relative;
  z-index: 6;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: end;
  padding: 4rem clamp(1.2rem, 4vw, 3rem) 2.4rem;
  border-top: 1px solid;
  border-image: linear-gradient(90deg, var(--red), var(--gold), var(--green), var(--gold), var(--blue-sky)) 1;
}

.footer-word {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1;
  letter-spacing: 0.03em;
}
.footer-sub {
  margin-top: 0.9rem;
  font-size: 0.75rem;
  line-height: 1.8;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
}

.footer-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.55rem;
}
.footer-right a {
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-dim);
  position: relative;
  transition: color 0.3s;
}
.footer-right a:hover { color: var(--gold-bright); }
.footer-fine {
  margin-top: 1.4rem;
  font-size: 0.62rem;
  line-height: 1.8;
  color: rgba(239, 237, 230, 0.18);
  text-align: right;
  letter-spacing: 0.06em;
}

/* ═══════════ RESPONSIVE ═══════════ */

@media (max-width: 768px) {
  .nav-links { display: none; }

  .hero-title { top: 58%; font-size: clamp(4rem, 19vw, 8rem); }
  .hero-sub { top: 70%; }
  .hero-meta { flex-wrap: wrap; gap: 1.1rem 1.6rem; }
  .scroll-hint { display: none; }

  .ball-section { height: 340vh; }
  .callout { max-width: 13rem; }
  .callout p { font-size: 0.78rem; }
  .co-1 { top: 14%; left: 1.2rem; }
  .co-2 { bottom: 12%; left: 1.2rem; }
  .co-3 { top: 14%; right: 1.2rem; }
  .co-4 { bottom: 12%; right: 1.2rem; }

  .nation { padding: 6rem 1.2rem; }
  .nation-mexico .nation-content { margin-left: 0; text-align: left; }
  .nation-mexico .nation-facts { justify-content: flex-start; }
  .nation-mexico .nation-icon { margin-left: 0; }
  .nation-mexico .nation-lede { margin-left: 0; }

  .footer { grid-template-columns: 1fr; }
  .footer-right { align-items: flex-start; }
  .footer-fine { text-align: left; }
}

/* ═══════════ REDUCED MOTION ═══════════ */

@media (prefers-reduced-motion: reduce) {
  .scroll-hint-line { animation: none; }
  .line-inner { opacity: 1; transform: none; filter: none; }
  .nav, .cta-nav, .hero-meta { opacity: 1 !important; transform: none !important; }
  [data-reveal] { opacity: 1; }
  .callout { opacity: 1; visibility: visible; position: relative; inset: auto; margin: 1.5rem 0; text-align: left; }
  .c-lines path { stroke-dashoffset: 0; }
  /* ball stays parked under RM — keep it slightly recessed so copy always wins */
  #gl { opacity: 0.55; }
}