/* =========================================================
   SuirViewDigital v2 — "The River Index"
   Same palette as v1 (near-black / midnight / royal blue / soft gold)
   New skeleton: fixed index rail · Syne display · contour field
   ========================================================= */

:root {
  --black: #0A0B0F;
  --midnight: #0F1B3D;
  --midnight-2: #13233F;
  --panel: #10131C;
  --panel-2: #141826;

  --blue: #2563EB;
  --blue-bright: #3B82F6;
  --cyan: #38BDF8;

  --gold: #C9A96A;
  --gold-light: #E4C888;
  --gold-deep: #A9884E;

  --cream: #F7F5F1;
  --slate: #8B93A7;
  --slate-dim: #828A9E;
  --line: rgba(201, 169, 106, 0.16);
  --line-soft: rgba(255, 255, 255, 0.07);

  --display: 'Syne', 'Arial Black', sans-serif;
  --sans: 'Instrument Sans', 'Segoe UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', Consolas, monospace;

  --rail-w: 76px;
  --gutter: clamp(24px, 5vw, 72px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 32px; color-scheme: dark; }

body {
  font-family: var(--sans);
  background: var(--black);
  color: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

/* Skip link — hidden until keyboard focus */
.skip-link {
  position: fixed; top: 10px; left: 10px; z-index: 400;
  background: var(--gold); color: #1a1408; font-weight: 600; font-size: 0.9rem;
  padding: 10px 18px; border-radius: 8px;
  transform: translateY(-200%); transition: transform 0.2s var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
.mono { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.08em; }

h1, h2, h3 { font-family: var(--display); line-height: 1.02; letter-spacing: -0.01em; text-wrap: balance; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px;
}

/* ---------- Preloader (JS-gated) ---------- */
.preloader { display: none; }
.js .preloader {
  display: flex; align-items: center; justify-content: center;
  position: fixed; inset: 0; z-index: 300; background: var(--black);
  transition: transform 0.7s var(--ease);
}
.js .preloader.done { transform: translateY(-101%); }
.preloader-mark { width: 68px; height: 68px; opacity: 0.9; }

/* ---------- Contour field (signature) ---------- */
.contours { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.contour-layer { position: absolute; inset: -6%; width: 112%; height: 112%; opacity: 0.55; }
.contour-a { animation: driftA 60s ease-in-out infinite alternate; }
.contour-b { animation: driftB 80s ease-in-out infinite alternate; opacity: 0.4; }
@keyframes driftA { from { transform: translate3d(-1.5%, -1%, 0); } to { transform: translate3d(1.5%, 1.2%, 0); } }
@keyframes driftB { from { transform: translate3d(1.2%, 0.8%, 0); } to { transform: translate3d(-1.4%, -1%, 0); } }

main, .foot { position: relative; z-index: 1; }

/* ---------- Index rail ---------- */
.rail {
  position: fixed; top: 0; bottom: 0; left: 0; width: var(--rail-w); z-index: 90;
  display: flex; flex-direction: column; align-items: center;
  padding: 18px 0 20px; gap: 26px;
  border-right: 1px solid var(--line-soft);
  background: rgba(10, 11, 15, 0.72); backdrop-filter: blur(10px);
}
.rail-mark { width: 40px; height: 40px; flex-shrink: 0; }
.rail-index { display: flex; flex-direction: column; gap: 6px; margin: auto 0; }
.rail-index a {
  position: relative; display: flex; align-items: center; justify-content: center;
  width: 44px; height: 40px; border-radius: 8px; touch-action: manipulation;
  transition: background-color 0.3s var(--ease);
}
.rail-index a:hover { background: rgba(255, 255, 255, 0.05); }
.rail-num { font-family: var(--mono); font-size: 0.72rem; color: var(--slate-dim); transition: color 0.3s var(--ease); }
.rail-index a.active .rail-num { color: var(--gold-light); }
.rail-index a.active { background: rgba(201, 169, 106, 0.1); }
.rail-label {
  position: absolute; left: calc(100% + 10px); top: 50%; translate: 0 -50%;
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; color: var(--cream);
  background: var(--panel-2); border: 1px solid var(--line); border-radius: 6px;
  padding: 4px 10px; white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.25s var(--ease);
}
.rail-index a:hover .rail-label, .rail-index a:focus-visible .rail-label { opacity: 1; }
.rail-wordmark {
  writing-mode: vertical-rl; transform: rotate(180deg);
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.32em; color: var(--slate-dim);
}

/* ---------- Progress bar ---------- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 95; background: transparent; }
.progress span {
  display: block; height: 100%; width: 100%;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-light));
  transform: scaleX(0); transform-origin: left center;
}

/* ---------- Corner controls ---------- */
.corner { position: fixed; top: 18px; right: var(--gutter); z-index: 110; display: flex; align-items: center; gap: 14px; }
.menu-btn {
  display: flex; flex-direction: column; justify-content: center; gap: 6px;
  width: 46px; height: 46px; padding: 0 11px; cursor: pointer; touch-action: manipulation;
  background: rgba(16, 19, 28, 0.8); backdrop-filter: blur(8px);
  border: 1px solid var(--line-soft); border-radius: 999px;
  transition: border-color 0.3s var(--ease);
}
.menu-btn:hover { border-color: var(--gold); }
.menu-btn span { height: 2px; width: 100%; background: var(--cream); border-radius: 2px; transition: transform 0.35s var(--ease); }
.menu-open .menu-btn span:nth-child(1) { transform: translateY(4px) rotate(45deg); }
.menu-open .menu-btn span:nth-child(2) { transform: translateY(-4px) rotate(-45deg); }

/* ---------- Pills ---------- */
.pill {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 0.92rem; padding: 12px 24px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; touch-action: manipulation; white-space: nowrap;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background-color 0.3s var(--ease);
}
.pill-gold {
  background: linear-gradient(120deg, var(--gold-light), var(--gold));
  color: #1a1408; box-shadow: 0 8px 26px rgba(201, 169, 106, 0.25);
}
.pill-gold:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(201, 169, 106, 0.4); }
.pill-lg { padding: 16px 34px; font-size: 1rem; }
.pill-block { width: 100%; }

/* ---------- Overlay menu ---------- */
.overlay {
  position: fixed; inset: 0; z-index: 100;
  background: linear-gradient(160deg, var(--midnight), var(--black) 70%);
  display: flex; flex-direction: column; justify-content: center; padding: 0 var(--gutter);
  opacity: 0; pointer-events: none; transition: opacity 0.45s var(--ease);
  overscroll-behavior: contain; overflow-y: auto;
}
.overlay:not([hidden]) { opacity: 1; pointer-events: auto; }
.overlay[hidden] { display: flex; }
.overlay-nav { display: flex; flex-direction: column; gap: 4px; }
.overlay-nav a {
  font-family: var(--display); font-weight: 700; font-size: clamp(1.35rem, 4.6vw, 2.6rem);
  padding: 8px 0; color: var(--cream); display: flex; align-items: baseline; gap: 18px;
  transition: color 0.3s var(--ease), transform 0.35s var(--ease);
}
.overlay-nav a:hover { color: var(--gold-light); transform: translateX(12px); }
.overlay-nav .mono { font-style: normal; color: var(--slate-dim); font-size: 0.85rem; }
.overlay-foot { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 48px; }
.overlay-foot a { font-family: var(--mono); font-size: 0.85rem; color: var(--slate); }
.overlay-foot a:hover { color: var(--gold-light); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh; display: flex; flex-direction: column; justify-content: flex-start;
  padding: clamp(84px, 12vh, 132px) var(--gutter) 80px calc(var(--rail-w) + var(--gutter));
}
.hero-kicker { color: var(--gold); text-transform: uppercase; margin-bottom: 28px; overflow: hidden; }
.hero-kicker span { display: inline-block; }
.hero-title {
  /* Longest line measures 14.74em (Syne 800 uppercase). Width-derived size with
     margin ((100vw - rail/gutters) / 15.4) makes edge-clipping impossible. */
  font-size: clamp(1.15rem, calc((100vw - 220px) / 15.4), 5.6rem);
  font-weight: 800; text-transform: uppercase; letter-spacing: -0.02em;
}
/* Each line is a fixed unit of the choreography — it must never wrap or clip */
.hero-title .line { display: block; overflow: hidden; white-space: nowrap; }
.line-inner { display: inline-block; }
.hero-title .accent {
  background: linear-gradient(120deg, var(--gold-light), var(--gold));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-foot {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 40px;
  margin-top: clamp(36px, 6vh, 64px);
}
.hero-sub { max-width: 460px; color: var(--slate); font-size: 1.08rem; }

/* Spinning badge */
.spin-badge {
  position: relative; width: 128px; height: 128px; flex-shrink: 0; color: var(--gold-light);
  transition: transform 0.4s var(--ease);
}
.spin-badge:hover { transform: scale(1.06); }
.spin-badge svg { width: 100%; height: 100%; }
.spin-text {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.22em; fill: var(--gold);
  transform-origin: 60px 60px; animation: spin 22s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Hero load choreography (JS-gated) */
.js .hero-kicker span, .js .line-inner { transform: translateY(115%); transition: transform 0.9s var(--ease); }
.js.loaded .hero-kicker span, .js.loaded .line-inner { transform: translateY(0); }
.js.loaded .line:nth-child(1) .line-inner { transition-delay: 0.05s; }
.js.loaded .line:nth-child(2) .line-inner { transition-delay: 0.16s; }
.js.loaded .line:nth-child(3) .line-inner { transition-delay: 0.27s; }
.js.loaded .line:nth-child(4) .line-inner { transition-delay: 0.38s; }
.js .hero-foot { opacity: 0; transform: translateY(22px); transition: opacity 0.8s var(--ease) 0.5s, transform 0.8s var(--ease) 0.5s; }
.js.loaded .hero-foot { opacity: 1; transform: none; }

/* ---------- Marquee ---------- */
.marquee {
  overflow: hidden; border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft);
  padding: 16px 0; margin-left: var(--rail-w);
  background: rgba(15, 27, 61, 0.25);
}
.marquee-track {
  display: flex; align-items: center; gap: 34px; width: max-content;
  animation: marquee 30s linear infinite;
  font-family: var(--display); font-weight: 600; font-size: 0.98rem; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--slate);
}
.marquee:hover .marquee-track { animation-play-state: paused; }
.marquee-track i { color: var(--gold); font-style: normal; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Blocks ---------- */
.block { padding: clamp(90px, 13vh, 150px) var(--gutter) 0 calc(var(--rail-w) + var(--gutter)); }
.block-head { margin-bottom: clamp(36px, 6vh, 60px); max-width: 900px; }
.block-eyebrow { color: var(--gold); text-transform: uppercase; margin-bottom: 18px; }
.block-title { font-size: clamp(1.9rem, 4.6vw, 3.6rem); font-weight: 700; }

/* ---------- Accordion ---------- */
.acc { border-top: 1px solid var(--line-soft); max-width: 980px; }
.acc-item { border-bottom: 1px solid var(--line-soft); }
.acc-btn {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  width: 100%; padding: 26px 4px; background: none; border: 0; cursor: pointer; touch-action: manipulation;
  color: var(--cream); text-align: left;
}
.acc-title { font-family: var(--display); font-weight: 600; font-size: clamp(1.1rem, 2.4vw, 1.55rem); transition: color 0.3s var(--ease); }
.acc-btn:hover .acc-title { color: var(--gold-light); }
.acc-ico { position: relative; width: 30px; height: 30px; flex-shrink: 0; border: 1px solid var(--line); border-radius: 50%; }
.acc-ico::before, .acc-ico::after {
  content: ''; position: absolute; top: 50%; left: 50%; width: 12px; height: 1.6px;
  background: var(--gold); translate: -50% -50%;
  transition: transform 0.35s var(--ease);
}
.acc-ico::after { transform: rotate(90deg); }
.acc-btn[aria-expanded="true"] .acc-ico::after { transform: rotate(0deg); }
.acc-panel { display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.4s var(--ease); }
.acc-btn[aria-expanded="true"] + .acc-panel { grid-template-rows: 1fr; }
.acc-body { overflow: hidden; }
.acc-body p { color: var(--slate); max-width: 640px; padding: 0 4px 26px; }

/* ---------- Bento ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tile {
  position: relative; overflow: hidden;
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-soft); border-radius: 16px; padding: 34px 30px;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease);
}
.tile:hover { border-color: var(--line); transform: translateY(-4px); }
.tile-wide { grid-column: span 2; }
.tile::before {
  content: ''; position: absolute; inset: 0; pointer-events: none; opacity: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(37, 99, 235, 0.16), transparent 65%);
  transition: opacity 0.4s var(--ease);
}
.tile:hover::before { opacity: 1; }
.tico { width: 26px; height: 26px; fill: none; stroke: var(--gold); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 20px; }
.tile h3 { font-size: 1.25rem; font-weight: 700; margin-bottom: 10px; }
.tile p { color: var(--slate); font-size: 0.96rem; max-width: 52ch; }

/* ---------- Process deck (sticky stack) ---------- */
.deck { display: flex; flex-direction: column; gap: 22px; max-width: 900px; }
.deck-card {
  position: sticky; top: 110px;
  background: linear-gradient(160deg, var(--midnight-2), var(--panel));
  border: 1px solid var(--line); border-radius: 20px;
  padding: clamp(30px, 5vw, 52px);
  box-shadow: 0 -18px 50px rgba(0, 0, 0, 0.45);
  transform-origin: top center;
}
.deck-card:nth-child(2) { top: 126px; }
.deck-card:nth-child(3) { top: 142px; }
.deck-card:nth-child(4) { top: 158px; }
.deck-step { color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
.deck-card h3 { font-size: clamp(1.5rem, 3.4vw, 2.3rem); font-weight: 700; margin-bottom: 12px; }
.deck-card p { color: var(--slate); max-width: 560px; font-size: 1.02rem; }

/* ---------- Numbers ---------- */
.numbers {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--line-soft); border-block: 1px solid var(--line-soft);
  margin: clamp(90px, 13vh, 150px) 0 0 var(--rail-w);
}
.num { background: var(--black); padding: 40px 26px; text-align: center; }
.num strong {
  display: block; font-family: var(--display); font-weight: 800; font-variant-numeric: tabular-nums;
  font-size: clamp(1.7rem, 3.6vw, 2.7rem); color: var(--gold-light); margin-bottom: 6px;
}
.num span { font-size: 0.86rem; color: var(--slate); }

/* ---------- Plans diptych ---------- */
.diptych { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; gap: 0; max-width: 1040px; }
.panel {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-soft); border-radius: 20px; padding: clamp(30px, 4vw, 46px);
}
.panel-gold { border-color: var(--line); background: linear-gradient(160deg, var(--midnight-2), var(--panel)); }
.panel-tag { color: var(--gold); text-transform: uppercase; margin-bottom: 14px; }
.panel h3 { font-size: clamp(1.4rem, 3vw, 2rem); font-weight: 700; margin-bottom: 8px; }
.panel-sub { color: var(--slate); margin-bottom: 22px; }
.panel ul { list-style: none; display: grid; gap: 12px; }
.panel li {
  position: relative; padding-left: 28px; font-size: 0.97rem;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23C9A96A' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") no-repeat left 5px;
  background-size: 15px 15px;
}
.diptych-divider { display: flex; align-items: center; padding: 0 18px; }
.diptych-divider span {
  font-family: var(--display); font-weight: 700; color: var(--gold);
  width: 52px; height: 52px; border: 1px solid var(--line); border-radius: 50%;
  display: flex; align-items: center; justify-content: center; background: var(--black);
}
.plans-note { margin-top: 28px; color: var(--slate); }
.gold-link { color: var(--gold-light); border-bottom: 1px solid var(--gold); padding-bottom: 1px; }
.gold-link:hover { color: var(--cream); }

/* ---------- Contact ---------- */
.block-contact { padding-bottom: 40px; }
.contact-title { font-size: clamp(2.4rem, 7vw, 5.4rem); text-transform: uppercase; font-weight: 800; }
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(36px, 5vw, 70px); align-items: start; }
.contact-lead { color: var(--slate); font-size: 1.1rem; max-width: 400px; margin-bottom: 28px; }
.contact-list { list-style: none; display: grid; gap: 14px; margin-top: 34px; }
.contact-list a, .contact-list span { color: var(--slate); font-size: 0.85rem; }
.contact-list a:hover { color: var(--gold-light); }

.form {
  background: linear-gradient(160deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line-soft); border-radius: 20px; padding: clamp(26px, 4vw, 40px);
}
.field { margin-bottom: 18px; }
.field label { display: block; font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--slate); margin-bottom: 8px; }
.field input, .field textarea {
  width: 100%; background: var(--black); border: 1px solid var(--line-soft); border-radius: 10px;
  padding: 13px 15px; color: var(--cream); font-family: var(--sans); font-size: 0.98rem;
  transition: border-color 0.3s var(--ease);
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--gold); }
.field textarea { resize: vertical; }
.consent { display: flex; gap: 11px; align-items: flex-start; margin-bottom: 20px; cursor: pointer; }
.consent input { width: 18px; height: 18px; margin-top: 2px; flex-shrink: 0; accent-color: var(--gold); cursor: pointer; }
.consent span { font-size: 0.8rem; line-height: 1.5; color: var(--slate); }
.form-status { margin-top: 14px; font-size: 0.9rem; text-align: center; min-height: 20px; }
.form-status.ok { color: var(--gold-light); }
.form-status.err { color: #f08a8a; }

/* ---------- Footer ---------- */
.foot {
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding: 34px var(--gutter) 34px calc(var(--rail-w) + var(--gutter));
  border-top: 1px solid var(--line-soft); color: var(--slate-dim);
}
.foot a:hover { color: var(--gold-light); }

/* ---------- Cursor glow ---------- */
.glow-ring { display: none; }
@media (pointer: fine) {
  .js .glow-ring {
    display: block; position: fixed; top: 0; left: 0; z-index: 200; pointer-events: none;
    width: 34px; height: 34px; border-radius: 50%;
    border: 1.5px solid rgba(201, 169, 106, 0.55);
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.18);
    transform: translate(-100px, -100px);
    transition: width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s var(--ease);
  }
  .js .glow-ring.hot { width: 54px; height: 54px; border-color: var(--gold-light); }
}

/* ---------- Reveals (JS-gated, scroll-handler driven) ---------- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .bento { grid-template-columns: 1fr 1fr; }
  .tile-wide { grid-column: span 2; }
  .diptych { grid-template-columns: 1fr; }
  .diptych-divider { justify-content: center; padding: 6px 0; }
  .contact-grid { grid-template-columns: 1fr; }
  .numbers { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 840px) {
  :root { --rail-w: 0px; }
  .rail { display: none; }
  .marquee, .numbers { margin-left: 0; }
  .hero, .block, .foot { padding-left: var(--gutter); }
  .hero-foot { flex-direction: column; align-items: flex-start; }
  .spin-badge { width: 108px; height: 108px; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: 1fr; }
  .tile-wide { grid-column: span 1; }
  .numbers { grid-template-columns: 1fr 1fr; }
  .corner { right: 18px; }
  .pill { white-space: normal; text-align: center; }
  .deck-card { top: 90px; }
  .deck-card:nth-child(2) { top: 102px; }
  .deck-card:nth-child(3) { top: 114px; }
  .deck-card:nth-child(4) { top: 126px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .js .reveal, .js .hero-foot { opacity: 1; transform: none; }
  .js .hero-kicker span, .js .line-inner { transform: none; }
  .js .preloader { display: none; }
  .contour-a, .contour-b { animation: none; }
  .marquee-track { animation: none; }
  .spin-text { animation: none; }
  .js .glow-ring { display: none; }
  html { scroll-behavior: auto; }
}