/* Hallmark · genre: modern-minimal · macrostructure: Feature Stack · theme: locked by deep-tms DESIGN.md (white paper · #0070F3 · navy)
 * enrichment: E1 clipped-edge real product video (hero) · nav: N9 Edge-aligned minimal · footer: Ft5 Statement
 * F2 sticky-scroll knobs: pinned=left, right=screen video, steps=4 · H7 knobs: clip=right, 16/10, hairline
 * T4 knobs: 6-up, display mono, label under · motion: owner asked for full scroll choreography (GSAP + ScrollTrigger),
 * every scroll-linked piece has a static fallback below 56rem and under prefers-reduced-motion.
 */
/* Hallmark · pre-emit critique: P4 H5 E4 S5 R4 V4 */

*, *::before, *::after { box-sizing: border-box; }
html { overflow-x: clip; -webkit-text-size-adjust: 100%; }
body {
  overflow-x: clip;
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}
img, video { display: block; max-width: 100%; }
h1, h2, h3, p, figure, ol, ul, dl, dd { margin: 0; }
ol, ul { padding: 0; list-style: none; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); font-style: normal; overflow-wrap: anywhere; min-width: 0; }
.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.sky { color: var(--color-sky); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.skip {
  position: absolute; left: var(--space-md); top: -4rem; z-index: var(--z-nav);
  background: var(--color-ink); color: var(--color-paper); padding: var(--space-xs) var(--space-md); border-radius: var(--radius-sm);
}
.skip:focus-visible { top: var(--space-md); }
:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
[data-surface="dark"] :focus-visible, [data-surface="blue"] :focus-visible { outline-color: var(--color-focus-dark); }

/* ── buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-xs);
  min-height: 44px; padding: 0 var(--space-lg);
  border-radius: var(--radius-sm); border: var(--rule-hair) solid transparent;
  font: 600 var(--text-base)/1 var(--font-body); text-decoration: none; white-space: nowrap;
  transition: background-color var(--dur-short) var(--ease-out), border-color var(--dur-short) var(--ease-out),
              color var(--dur-short) var(--ease-out), transform var(--dur-micro) var(--ease-out);
}
.btn:active { transform: translateY(1px); }
.btn--solid { background: var(--color-accent); color: var(--color-on-accent); }
.btn--solid:hover { background: var(--color-accent-press); }
.btn--ghost { border-color: var(--color-rule); color: var(--color-ink); background: var(--color-surface); }
.btn--ghost:hover { border-color: var(--color-ink-2); }
.btn--pill { border-radius: var(--radius-pill); min-height: 40px; padding: 0 var(--space-lg); background: var(--color-ink); color: var(--color-paper); font-size: var(--text-sm); }
.btn--pill:hover { background: var(--color-accent); }
.btn--on-dark.btn--solid { background: var(--color-on-navy); color: var(--color-navy); }
.btn--on-dark.btn--solid:hover { background: var(--color-sky); }
.btn--on-dark.btn--ghost { background: transparent; color: var(--color-on-navy); border-color: var(--color-rule-dark); }
.btn--on-dark.btn--ghost:hover { border-color: var(--color-on-navy-2); }

/* ── nav · N9 ────────────────────────────────────────── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: var(--z-nav);
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-sm) var(--gutter);
  border-bottom: var(--rule-hair) solid transparent;
  transition: background-color var(--dur-long) var(--ease-out), border-color var(--dur-long) var(--ease-out), color var(--dur-long) var(--ease-out);
}
.nav.is-scrolled { background: var(--color-paper); border-bottom-color: var(--color-rule); }
.nav.on-dark { color: var(--color-on-navy); }
.nav.on-dark.is-scrolled { background: var(--color-navy); border-bottom-color: var(--color-rule-dark); }
.nav.on-blue { color: var(--color-on-accent); }
.nav.on-blue.is-scrolled { background: var(--color-accent); border-bottom-color: transparent; }
.nav.on-dark .btn--pill, .nav.on-blue .btn--pill { background: var(--color-on-navy); color: var(--color-navy); }
.wordmark { display: inline-flex; align-items: center; gap: var(--space-xs); font-weight: 700; font-size: var(--text-lg); letter-spacing: -0.02em; text-decoration: none; white-space: nowrap; }
.wordmark__mark {
  display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: var(--radius-sm);
  background: var(--color-accent); color: var(--color-on-accent); font-size: var(--text-xs); font-weight: 800; letter-spacing: 0;
}

/* ── 1 · hero ─────────────────────────────────────────── */
.hero { display: grid; gap: var(--space-xl); padding: calc(var(--space-4xl) + var(--space-md)) var(--gutter) var(--space-3xl); }
.hero__copy { display: grid; gap: var(--space-xl); }
.hero__title { font-size: clamp(2.5rem, 0.6rem + 5.6vw, 6.5rem); font-weight: 800; line-height: 1.16; letter-spacing: -0.04em; }
.nw { white-space: nowrap; }
.line { display: block; overflow: hidden; padding-block: 0.06em 0.12em; margin-block: -0.06em -0.12em; }
.line__in { display: block; }
.hero__title-accent { color: var(--color-accent); }
.hero__side { display: grid; grid-template-columns: minmax(0, 34rem) auto; justify-content: space-between; align-items: end; gap: var(--space-xl); }
.hero__lede { max-width: var(--measure); color: var(--color-ink-2); font-size: var(--text-lg); line-height: 1.7; }
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.hero__route { position: relative; margin-top: var(--space-md); }
.hero__route svg { position: absolute; left: 7px; right: 7px; top: 0; width: calc(100% - 14px); height: 14px; overflow: visible; }
.route-path { fill: none; stroke: var(--color-accent); stroke-width: 3; stroke-linecap: round; vector-effect: non-scaling-stroke; }
.hero__stops { position: relative; display: flex; justify-content: space-between; }
.hero__stops li { display: grid; justify-items: start; gap: var(--space-xs); font-size: var(--text-sm); font-weight: 600; color: var(--color-ink-2); white-space: nowrap; }
.hero__stops li:nth-child(n+2) { justify-items: center; }
.hero__stops li:last-child { justify-items: end; }
.route-node { display: block; width: 14px; height: 14px; border-radius: 50%; background: var(--color-surface); border: 3px solid var(--color-accent); }
.hero__media {
  width: calc(100% + var(--gutter) + 4vw);
  aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden;
  border: var(--rule-hair) solid var(--color-rule); background: var(--color-surface); box-shadow: var(--shadow-frame);
  transform-origin: left top;
}
.hero__media video, .screen video, .live__frame video, .mode__media video, .film__frame video { width: 100%; height: 100%; object-fit: cover; object-position: top left; }

/* ── 2 · chaos → system ───────────────────────────────── */
/* Base = the static layout (no JS, phones, reduced motion). `.motion` (set in <head> on wide screens
   with motion allowed) switches to the pinned stage. */
.chaos { background: var(--color-navy); color: var(--color-on-navy); }
.chaos__stage { position: relative; display: flex; flex-direction: column; gap: var(--space-xl); padding: var(--space-4xl) var(--gutter) var(--space-3xl); }
.chaos__heads { display: contents; }
.chaos__head { font-size: var(--text-3xl); font-weight: 700; line-height: 1.22; letter-spacing: -0.03em; max-width: 16ch; }
.chaos__head--a { order: 1; }
.chaos__head--b { order: 3; margin-top: var(--space-lg); }
.chaos__field { display: none; }
.chaos__qs { order: 2; position: relative; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--space-md); }
.q {
  position: relative; display: grid; gap: var(--space-xs); align-content: start;
  padding: var(--space-lg); border-radius: var(--radius-md); background: var(--color-navy-2); border: var(--rule-hair) solid var(--color-rule-dark);
}
.q__ask { font-size: var(--text-2xl); font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; }
.q { min-height: 9.5rem; }
.q__step { justify-self: start; padding: var(--space-2xs) var(--space-sm); border-radius: var(--radius-pill); background: var(--color-accent); color: var(--color-on-accent); font-size: var(--text-xs); font-weight: 600; white-space: nowrap; }

.motion .chaos__stage { min-height: 100svh; display: grid; align-content: space-between; gap: var(--space-2xl); }
.motion .chaos__heads { display: block; position: relative; }
.motion .chaos__head--b { position: absolute; inset: 0 auto auto 0; margin: 0; opacity: 0; }
.motion .chaos__field { display: block; position: absolute; inset: 0; pointer-events: none; }
.frag {
  position: absolute; padding: var(--space-xs) var(--space-md); border-radius: var(--radius-sm);
  border: var(--rule-hair) solid var(--color-rule-dark); color: var(--color-on-navy-2); font-size: var(--text-sm); white-space: nowrap;
  background: var(--color-navy-2);
}
.frag--1 { right: 10%; top: 14%; transform: rotate(4deg); font-size: var(--text-lg); }
.frag--2 { right: 36%; top: 22%; transform: rotate(-6deg); }
.frag--3 { right: 6%; top: 36%; transform: rotate(-3deg); color: var(--color-alert-on-dark); border-color: var(--color-alert-on-dark); font-size: var(--text-lg); }
.frag--4 { right: 52%; top: 40%; transform: rotate(3deg); }
.frag--5 { right: 24%; top: 50%; transform: rotate(-2deg); font-size: var(--text-xl); }
.frag--6 { right: 60%; top: 16%; transform: rotate(7deg); }
.frag--7 { right: 4%; top: 58%; transform: rotate(5deg); }
.chaos__line { position: absolute; left: var(--gutter); bottom: calc(var(--space-3xl) - var(--space-lg)); width: calc(100% - 2 * var(--gutter)); height: 6px; overflow: visible; transform-origin: left center; transform: scaleX(0); }
.chaos__line path { fill: none; stroke: var(--color-sky); stroke-width: 3; stroke-linecap: round; vector-effect: non-scaling-stroke; }

/* ── 3 · feature stack ───────────────────────────────── */
.stack { background: var(--color-paper); }
/* static: step + screen pairs, interleaved with `order` */
.stack__pin { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-2xl) var(--space-2xl); align-items: center; padding: var(--space-4xl) var(--gutter) var(--space-3xl); }
.stack__text, .stack__steps, .stack__media { display: contents; }
.rail { display: none; }
.step[data-step="0"] { order: 1; } .screen[data-screen="0"] { order: 2; }
.step[data-step="1"] { order: 3; } .screen[data-screen="1"] { order: 4; }
.step[data-step="2"] { order: 5; } .screen[data-screen="2"] { order: 6; }
.step[data-step="3"] { order: 7; } .screen[data-screen="3"] { order: 8; }
.step__kicker { display: flex; gap: var(--space-xs); align-items: baseline; color: var(--color-accent); font-weight: 600; font-size: var(--text-base); }
.step__title { margin-top: var(--space-sm); font-size: var(--text-3xl); font-weight: 800; line-height: 1.2; letter-spacing: -0.03em; }
.step__body { margin-top: var(--space-lg); max-width: var(--measure); color: var(--color-ink-2); font-size: var(--text-lg); line-height: 1.7; }
.screen { position: relative; aspect-ratio: 16 / 10; border-radius: var(--radius-md); overflow: hidden; border: var(--rule-hair) solid var(--color-rule); background: var(--color-surface); box-shadow: var(--shadow-frame); }

/* motion: one pinned stage, text crossfades left, screens wipe right */
.motion .stack__pin { min-height: 100svh; padding: calc(var(--space-3xl) + var(--space-md)) var(--gutter) var(--space-2xl); }
.motion .stack__text { position: relative; display: grid; grid-template-columns: auto minmax(0, 1fr); gap: var(--space-xl); align-items: stretch; }
.motion .stack__steps { display: block; position: relative; min-height: 24rem; }
.motion .stack__media { display: block; position: relative; aspect-ratio: 16 / 10; border-radius: var(--radius-md); overflow: hidden; border: var(--rule-hair) solid var(--color-rule); background: var(--color-surface); box-shadow: var(--shadow-frame); }
.motion .rail { position: relative; width: 14px; display: grid; grid-template-rows: repeat(4, 1fr); justify-items: center; min-height: 24rem; }
.motion .step { position: absolute; inset: 0 0 auto 0; opacity: 0; visibility: hidden; }
.motion .step.is-active { opacity: 1; visibility: visible; }
.motion .screen { position: absolute; inset: 0; border: 0; border-radius: 0; box-shadow: none; clip-path: inset(100% 0 0 0); }
.motion .screen.is-active { clip-path: inset(0 0 0 0); }
.rail__track { position: absolute; top: 7px; bottom: 7px; left: 50%; width: 3px; transform: translateX(-50%); background: var(--color-rule); border-radius: 3px; overflow: hidden; }
.rail__fill { width: 100%; height: 100%; background: var(--color-accent); transform-origin: top; transform: scaleY(0); }
.rail__node { position: relative; width: 14px; height: 14px; border-radius: 50%; background: var(--color-surface); border: 3px solid var(--color-rule); transition: border-color var(--dur-short) var(--ease-out), background-color var(--dur-short) var(--ease-out); }
.rail__node.is-on { border-color: var(--color-accent); background: var(--color-accent); }

/* ── 4 · live ─────────────────────────────────────────── */
.live { background: var(--color-navy); color: var(--color-on-navy); padding: var(--space-4xl) var(--gutter) var(--space-3xl); display: grid; gap: var(--space-2xl); }
.live__copy { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-xl); align-items: end; }
.live__title { font-size: var(--text-mega); font-weight: 800; line-height: 1.08; letter-spacing: -0.04em; }
.live__body { max-width: 26rem; color: var(--color-on-navy-2); font-size: var(--text-xl); line-height: 1.6; justify-self: end; }
.live__frame { aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden; border: var(--rule-hair) solid var(--color-rule-dark); background: var(--color-navy-2); }

/* ── 5 · modes (system blue) ──────────────────────────── */
.modes { background: var(--color-accent); color: var(--color-on-accent); overflow: hidden; }
.modes__track { display: grid; gap: var(--space-3xl); padding: var(--space-4xl) var(--gutter) var(--space-3xl); }
.mode { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); align-items: center; gap: var(--space-2xl); }
.mode--intro { grid-template-columns: minmax(0, 1fr); }
.motion .modes__track { display: flex; align-items: center; min-height: 100svh; width: max-content; padding: var(--space-3xl) var(--gutter); gap: var(--space-3xl); }
.motion .mode { flex: 0 0 auto; width: min(84vw, 80rem); grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); }
.motion .mode--intro { width: min(52vw, 40rem); }
.modes__title { font-size: var(--text-mega); font-weight: 800; line-height: 1.08; letter-spacing: -0.045em; }
.modes__soft { color: var(--color-navy); }
.mode__media { aspect-ratio: 16 / 10; border-radius: var(--radius-md); overflow: hidden; background: var(--color-surface); box-shadow: var(--shadow-lift); }
.mode__media--seat { aspect-ratio: auto; width: min(100%, 26rem); justify-self: center; padding: var(--space-xl); border-radius: var(--radius-lg); }
.mode__media--seat img { width: 100%; height: auto; }
.mode__title { font-size: var(--text-3xl); font-weight: 800; font-weight: 700; line-height: 1.3; letter-spacing: -0.02em; }
.mode__body { margin-top: var(--space-md); font-size: var(--text-xl); line-height: 1.65; max-width: 26rem; }

/* ── 6 · numbers ──────────────────────────────────────── */
.numbers { padding: var(--space-4xl) var(--gutter) var(--space-3xl); }
.numbers__head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: var(--space-xl); align-items: end; }
.numbers__title { font-size: var(--text-3xl); font-weight: 800; line-height: 1.2; letter-spacing: -0.03em; }
.numbers__note { justify-self: end; color: var(--color-muted); font-size: var(--text-sm); }
.stats { margin-top: var(--space-2xl); display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: var(--rule-hair) solid var(--color-rule); }
.stat { display: flex; flex-direction: column-reverse; justify-content: flex-end; gap: var(--space-2xs); padding: var(--space-lg) var(--space-md) var(--space-lg) 0; border-bottom: var(--rule-hair) solid var(--color-rule); }
.stat dd { font-size: clamp(2.5rem, 0.8rem + 4.6vw, 6rem); font-weight: 600; line-height: 1.1; letter-spacing: -0.04em; color: var(--color-ink); }
.stat dt { color: var(--color-ink-2); font-size: var(--text-lg); }
.stat { padding-block: var(--space-xl); }

/* ── 7 · modules ──────────────────────────────────────── */
.modules { background: var(--color-paper-2); padding: var(--space-3xl) 0 var(--space-4xl); overflow: hidden; }
.modules__title { padding: 0 var(--gutter); font-size: var(--text-2xl); font-weight: 700; letter-spacing: -0.02em; }
.belt { display: flex; align-items: center; gap: var(--space-xl); width: max-content; margin-top: var(--space-xl); font-family: var(--font-display); font-size: var(--text-mega); font-weight: 800; letter-spacing: -0.04em; line-height: 1.2; white-space: nowrap; }
.belt i { width: 0.22em; height: 0.22em; border-radius: 50%; background: var(--color-accent); flex: 0 0 auto; }
.belt--b { color: var(--color-ink-2); }

/* ── 8 · film ─────────────────────────────────────────── */
.film { background: var(--color-navy); color: var(--color-on-navy); padding: var(--space-4xl) var(--gutter) var(--space-3xl); display: grid; gap: var(--space-xl); }
.film__title { font-size: var(--text-3xl); font-weight: 700; letter-spacing: -0.03em; }
.film__frame { aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden; background: var(--color-navy-2); border: var(--rule-hair) solid var(--color-rule-dark); }
.film__frame video { object-fit: contain; object-position: center; }

/* ── 9 · close (Ft5) ──────────────────────────────────── */
.close { background: var(--color-navy); color: var(--color-on-navy); padding: var(--space-3xl) var(--gutter) var(--space-xl); display: grid; gap: var(--space-2xl); border-top: var(--rule-hair) solid var(--color-rule-dark); }
.close__line { font-family: var(--font-display); font-size: var(--text-display); font-weight: 800; line-height: 1.18; letter-spacing: -0.035em; max-width: 18ch; }
.close__line .w { display: inline-block; white-space: nowrap; }
.close__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.close__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-md); padding-top: var(--space-md); border-top: var(--rule-hair) solid var(--color-rule-dark); color: var(--color-on-navy-2); font-size: var(--text-sm); }
.close__meta-end { display: inline-flex; flex-wrap: wrap; gap: var(--space-lg); }
.close__site { color: var(--color-on-navy-2); text-decoration: none; transition: color var(--dur-short) var(--ease-out); }
.close__site:hover { color: var(--color-on-navy); }

/* ชิปผู้ติดต่อนัดเดโม — ทั้งชิปคือลิงก์ tel: */
.contact-chip {
  justify-self: start; display: inline-flex; align-items: center; gap: var(--space-md); padding: var(--space-xs);
  border-radius: var(--radius-pill); border: var(--rule-hair) solid var(--color-rule-dark);
  background: var(--color-navy-2); color: var(--color-on-navy); text-decoration: none;
  transition: border-color var(--dur-short) var(--ease-out);
}
.contact-chip:hover { border-color: var(--color-sky); }
.contact-chip__icon {
  flex: none; display: grid; place-items: center; width: 44px; height: 44px; border-radius: var(--radius-pill);
  color: var(--color-sky); border: var(--rule-hair) solid var(--color-rule-dark);
}
.contact-chip__text { display: grid; gap: 2px; min-width: 0; }
.contact-chip__who { color: var(--color-on-navy-2); font-size: var(--text-sm); }
.contact-chip__tel { font-size: var(--text-lg); font-weight: 600; letter-spacing: -0.01em; font-variant-numeric: tabular-nums; }
.contact-chip__go {
  flex: none; display: inline-flex; align-items: center; min-height: 44px; padding: 0 var(--space-lg); margin-left: var(--space-sm);
  border-radius: var(--radius-pill); background: var(--color-on-navy); color: var(--color-navy); font-weight: 600;
  transition: background-color var(--dur-short) var(--ease-out);
}
.contact-chip:hover .contact-chip__go { background: var(--color-sky); }

/* ── layout breakpoints ───────────────────────────────── */
@media (max-width: 56rem) {
  .hero { padding-top: calc(var(--space-3xl) + var(--space-xl)); gap: var(--space-lg); }
  .hero__side { grid-template-columns: minmax(0, 1fr); }
  .hero__media { width: 100%; border-radius: var(--radius-md); }
  .hero__stops li { font-size: var(--text-xs); }
  .chaos__stage { padding-block: var(--space-3xl); }
  .chaos__qs { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .stack__pin { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); padding-block: var(--space-3xl); }
  .step:not([data-step="0"]) { margin-top: var(--space-xl); }
  .live__copy { grid-template-columns: minmax(0, 1fr); }
  .live__body { justify-self: start; }
  .modes__track { gap: var(--space-2xl); padding-block: var(--space-3xl); }
  .mode { grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); }
  .mode__media--seat { justify-self: start; max-width: 16rem; }
  .numbers__head { grid-template-columns: minmax(0, 1fr); }
  .numbers__note { justify-self: start; }
}
@media (max-width: 40rem) {
  .close__line { font-size: clamp(1.9rem, 1rem + 4.4vw, 2.75rem); }
  .modes__title, .live__title { font-size: clamp(3rem, 1rem + 9vw, 4.5rem); }
  .chaos__qs { grid-template-columns: minmax(0, 1fr); }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .belt { font-size: var(--text-3xl); }
  .hero__actions .btn { flex: 1 1 auto; }
  .contact-chip { width: 100%; }
  .contact-chip__text { flex: 1; }
}

/* ── reduced motion: everything rests in its final state ─ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 150ms !important; transition-duration: 150ms !important; }
}