/* ══════════════════════════════════════════════════════════════
   ALMA — Autonomous Marketing
   Tokens follow branding.md: Digital Deep Blue + Neon Cyan.
   ══════════════════════════════════════════════════════════════ */

:root {
  /* Brand */
  --navy:        #0A192F;   /* main — branding.md */
  --navy-deep:   #060E1C;   /* base void */
  --navy-lift:   #0F2440;   /* lifted panel */
  --navy-row:    #14294a;   /* row / chip fill */
  --cyan:        #00F0FF;   /* accent — branding.md; reserved for interactive */
  --violet:      #7000FF;   /* secondary accent, sparing */
  --tan:         #C9B49A;   /* warm accent taken from the logo's crossbar */

  /* Ink */
  --ink:         #EAF1FA;
  --ink-2:       #A9BCD4;
  --ink-3:       #7D93AD;   /* >=4.5:1 on navy, navy-deep and chip fills */
  --line:        rgba(140, 180, 230, .16);
  --line-2:      rgba(140, 180, 230, .09);

  /* Type */
  --sans: "Pretendard Variable", Pretendard, -apple-system, BlinkMacSystemFont,
          "Apple SD Gothic Neo", "Malgun Gothic", "Noto Sans KR", system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Space */
  --wrap: 1180px;
  --gut: clamp(20px, 5vw, 48px);
  --hero-cap: 940px;
  --sec-y: clamp(80px, 11vw, 160px);
  --r: 14px;

  /* Motion */
  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur: .7s;
}

*, *::before, *::after { box-sizing: border-box; }

/* The `hidden` attribute must win over any component `display` rule. */
[hidden] { display: none !important; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--navy-deep);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.72;
  letter-spacing: -.011em;
  word-break: keep-all;          /* Korean line-breaking */
  overflow-wrap: anywhere;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, video, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.18; letter-spacing: -.035em; font-weight: 700; }
p  { margin: 0; }
ul, ol, dl, dd { margin: 0; padding: 0; list-style: none; }

::selection { background: var(--cyan); color: var(--navy-deep); }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip {
  position: fixed; top: 10px; left: 10px; z-index: 200;
  padding: 12px 18px; border-radius: 8px;
  background: var(--cyan); color: var(--navy-deep); font-weight: 700;
  transform: translateY(-160%);
  transition: transform .25s var(--ease);
}
.skip:focus { transform: none; }

/* ── Layout primitives ───────────────────────────────────── */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gut); }
.wrap--narrow { max-width: 860px; }
.sec { padding-block: var(--sec-y); position: relative; }
.sec--alt { background: var(--navy); border-block: 1px solid var(--line-2); }

/* Micro-labels containing Hangul use the sans stack with light tracking.
   Hangul syllable blocks already carry internal side-bearing, so the .14–.2em
   tracking that suits Latin small-caps renders as "수 집  소 스". Wide tracking
   is kept only for Latin-only labels (.eyebrow, .prob__n). */
.kicker {
  font: 700 12.5px/1 var(--sans);
  letter-spacing: .02em;
  color: var(--cyan);
  margin-bottom: 22px;
  display: flex; align-items: center; gap: 12px;
}
.kicker::before {
  content: ""; width: 28px; height: 1px; background: var(--cyan); opacity: .7;
}

.h2 { font-size: clamp(30px, 4.6vw, 54px); }

.lede { color: var(--ink-2); font-size: clamp(16px, 1.6vw, 19px); margin-top: 22px; max-width: 52ch; }

.sechead { margin-bottom: clamp(48px, 6vw, 80px); }
.sechead--split {
  display: grid; grid-template-columns: 1fr; gap: 28px;
}
.sechead__lede { color: var(--ink-2); max-width: 46ch; align-self: end; }

@media (min-width: 900px) {
  .sechead--split { grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: end; }
}

.br-d { display: none; }
@media (min-width: 760px) { .br-d { display: inline; } }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  --bh: 48px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: var(--bh); padding-inline: 24px;
  border-radius: 10px; border: 1px solid transparent;
  font-size: 15px; font-weight: 650; letter-spacing: -.01em;
  white-space: nowrap; cursor: pointer;
  transition: background .22s var(--ease), border-color .22s var(--ease),
              color .22s var(--ease), transform .22s var(--ease),
              box-shadow .22s var(--ease);
}
.btn--lg { --bh: 56px; padding-inline: 32px; font-size: 16px; }

.btn--primary {
  background: var(--cyan); color: #04121F;
  box-shadow: 0 0 0 0 rgba(0, 240, 255, .5);
}
.btn--primary:hover {
  background: #6df6ff;
  transform: translateY(-2px);
  box-shadow: 0 10px 34px -10px rgba(0, 240, 255, .65);
}

.btn--ghost {
  border-color: var(--line); color: var(--ink);
  background: rgba(255, 255, 255, .02);
}
.btn--ghost:hover {
  border-color: rgba(0, 240, 255, .55);
  background: rgba(0, 240, 255, .07);
  transform: translateY(-2px);
}
.btn__arw { transition: transform .22s var(--ease); }
.btn:hover .btn__arw { transform: translateX(4px); }
.btn:active { transform: translateY(0); }

/* ── Nav ─────────────────────────────────────────────────── */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 100;
  transition: background .3s var(--ease), border-color .3s var(--ease), backdrop-filter .3s;
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(6, 14, 28, .72);
  backdrop-filter: blur(16px) saturate(150%);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  border-bottom-color: var(--line-2);
}
.nav__in {
  max-width: var(--wrap); margin-inline: auto; padding: 16px var(--gut);
  display: flex; align-items: center; gap: 20px;
}

/* Off-screen holder for the inline <symbol> sprite. */
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }

.brand { display: inline-flex; align-items: center; gap: 13px; color: var(--ink); }
.brand__mark {
  width: 54px; height: auto; aspect-ratio: 100 / 41.73; flex: none;
  overflow: visible;
  transition: transform .4s var(--ease);
}
/* The back A drifts a touch further behind the front A on hover, which reads
   as the two strokes separating rather than the whole lockup dimming. */
.brand .lg-b { transition: transform .45s var(--ease), fill .3s var(--ease); }
.brand .lg-a { transition: fill .3s var(--ease); }
.brand:hover .lg-b { transform: translateX(1.6px); fill: #8FA6C0; }
.brand:hover .lg-a { fill: #DCC7A9; }

.brand__word {
  font-size: 20px; font-weight: 800; letter-spacing: .1em;
  background: linear-gradient(96deg, var(--ink) 30%, #B9CBE2 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ALMA mark, reversed for dark backgrounds: the front A carries the contrast,
   the back A recedes, the tan bar stays warm. */
.lg-f { fill: #EAF1FA; }
.lg-b { fill: #7D93AD; }
.lg-a { fill: var(--tan); }

@media (max-width: 400px) {
  .brand__mark { width: 46px; }
  .brand__word { font-size: 18px; }
}

.nav__links {
  display: none; margin-left: auto; gap: 4px;
}
.nav__links a {
  padding: 9px 15px; border-radius: 8px;
  font-size: 14.5px; font-weight: 550; color: var(--ink-2);
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav__links a:hover { color: var(--ink); background: rgba(255, 255, 255, .05); }

.nav__cta { display: none; }
@media (min-width: 940px) {
  .nav__links { display: flex; }
  .nav__cta { display: block; margin-left: 12px; }
  .nav__burger { display: none !important; }
  /* Guards a viewport resize while the mobile menu is open. */
  .nav__mobile { display: none !important; }
}

.nav__burger {
  margin-left: auto; width: 44px; height: 44px;
  display: grid; place-content: center; gap: 6px;
  background: none; border: 1px solid var(--line); border-radius: 9px;
  cursor: pointer;
}
.nav__burger span {
  display: block; width: 18px; height: 1.5px; background: var(--ink);
  transition: transform .3s var(--ease), opacity .2s;
}
.nav__burger[aria-expanded="true"] span:first-child { transform: translateY(3.75px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:last-child  { transform: translateY(-3.75px) rotate(-45deg); }

.nav__mobile {
  display: grid; gap: 4px; padding: 8px var(--gut) 22px;
  background: rgba(6, 14, 28, .96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line-2);
}
.nav__mobile a:not(.btn) {
  padding: 13px 4px; color: var(--ink-2);
  border-bottom: 1px solid var(--line-2); font-weight: 550;
}
.nav__mobile .btn { margin-top: 14px; }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative; isolation: isolate;
  min-height: min(100svh, var(--hero-cap));
  display: flex; align-items: center;
  padding-block: 148px clamp(72px, 10vw, 120px);
  overflow: hidden;
}
.hero__media { position: absolute; inset: 0; z-index: -2; }
/* contain, not cover: the hero film is a single centred sculpture, and cover
   crops ~230px of width at 1440x940, cutting both peaks off. The letterbox
   bands sit under the scrim's darkest stops so they read as background. */
.hero__video,
.hero__media > img {
  width: 100%; height: 100%;
  object-fit: contain; object-position: center;
}
.hero__video { opacity: .85; }

@media (max-width: 760px) {
  /* Portrait leaves a short band; drop it below the headline. */
  .hero__video, .hero__media > img { object-position: center 78%; }
}

/* Once the viewport is wider than the film's own 16:9, cover trims empty
   headroom instead of the sculpture's sides, so it can fill the screen
   without clipping the mark. Below 16:9 cover would cut the peaks off. */
@media (min-aspect-ratio: 16 / 9) {
  .hero__video, .hero__media > img { object-fit: cover; }
}

.hero__scrim {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 82% at 12% 42%, rgba(6, 14, 28, .93) 0%, rgba(6, 14, 28, .58) 42%, rgba(6, 14, 28, .18) 72%),
    linear-gradient(to bottom, rgba(6, 14, 28, .82) 0%, rgba(6, 14, 28, .1) 34%, rgba(6, 14, 28, .72) 82%, var(--navy-deep) 100%);
}
.hero__grid {
  position: absolute; inset: 0; opacity: .28;
  background-image:
    linear-gradient(rgba(140, 190, 240, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 190, 240, .09) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(90% 68% at 50% 44%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(90% 68% at 50% 44%, #000 20%, transparent 78%);
}

.hero__in { position: relative; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 7px 15px 7px 13px;
  border: 1px solid rgba(0, 240, 255, .28);
  border-radius: 100px;
  background: rgba(0, 240, 255, .06);
  font: 600 11.5px/1 var(--mono);
  letter-spacing: .19em; color: #9ef4ff;
  margin-bottom: 30px;
}
.eyebrow i {
  width: 4px; height: 4px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(0, 240, 255, .7);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(0, 240, 255, .6); }
  70%  { box-shadow: 0 0 0 9px rgba(0, 240, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(0, 240, 255, 0); }
}

.hero__h1 {
  font-size: clamp(44px, 8.4vw, 104px);
  letter-spacing: -.045em;
  line-height: 1.03;
  max-width: 16ch;
}
/* Solid warm tan rather than a cyan->violet gradient: it echoes the logo's
   crossbar and keeps cyan reserved for things you can actually click. */
.hero__h1 em { font-style: normal; color: var(--tan); }

.hero__sub {
  margin-top: 30px; max-width: 60ch;
  font-size: clamp(16px, 1.75vw, 20px);
  color: var(--ink-2);
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 40px; }

.stats {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 1px; margin-top: clamp(56px, 7vw, 86px);
  background: var(--line-2);
  border: 1px solid var(--line-2); border-radius: var(--r);
  overflow: hidden;
  max-width: 780px;
}
.stats__i { background: rgba(10, 25, 47, .58); padding: 22px 24px; backdrop-filter: blur(6px); }
.stats__i dt {
  font: 600 12px/1 var(--sans); letter-spacing: .01em;
  color: var(--ink-3);
}
.stats__i dd {
  margin: 11px 0 0; display: flex; align-items: baseline; gap: 4px;
  font-variant-numeric: tabular-nums;
}
.stats__i b {
  font-size: clamp(30px, 4.2vw, 42px); font-weight: 700;
  letter-spacing: -.04em; line-height: 1; color: var(--ink);
}
.stats__i span { font-size: 15px; font-weight: 600; color: var(--cyan); }

@media (min-width: 780px) { .stats { grid-template-columns: repeat(4, 1fr); } }

.hero__scroll {
  position: absolute; bottom: 26px; left: 50%; translate: -50% 0;
  width: 1px; height: 46px; background: var(--line); overflow: hidden;
}
.hero__scroll span {
  position: absolute; inset: 0; background: var(--cyan);
  animation: scrolldot 2.4s var(--ease) infinite;
}
@keyframes scrolldot {
  0%   { transform: translateY(-100%); }
  60%  { transform: translateY(100%); }
  100% { transform: translateY(100%); }
}

/* ── Tech strip ──────────────────────────────────────────── */
/* A "built with" marquee of real dependencies. Distinct from the media logo
   wall it replaced: these are things the product actually runs on, and the
   caption says so. Icons are simple-icons (CC0 icon data); the trademarks
   remain their owners' and imply no endorsement. */
.tk {
  padding-block: 38px 30px; background: var(--navy);
  border-block: 1px solid var(--line-2); overflow: hidden;
}
.tk__label {
  text-align: center; color: var(--ink-2);
  font-size: 14px; font-weight: 600; letter-spacing: -.01em;
  margin-bottom: 26px; padding-inline: var(--gut);
}
.tk__label span { display: block; color: var(--ink-3); font-weight: 500; }

/* Starts on the second copy (translateX(-50%)) and runs to 0, so the row
   enters from the centre and travels left -> right. Two identical copies make
   the wrap seamless in either direction. */
.tk__track {
  display: flex; width: max-content;
  animation: tk-slide 34s linear infinite;
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
/* Pause only when the pointer is on the logos, not anywhere in the section —
   on a wide screen the section spans the viewport and it read as a freeze. */
.tk__track:hover,
.tk__track:focus-within { animation-play-state: paused; }
@keyframes tk-slide {
  from { transform: translateX(-50%); }
  to   { transform: translateX(0); }
}

.tk__row { display: flex; align-items: center; gap: 44px; padding-right: 44px; }
.tk__row li {
  display: inline-flex; align-items: center; gap: 11px;
  color: var(--ink-3); font-size: 17px; font-weight: 650;
  letter-spacing: -.015em; white-space: nowrap;
  transition: color .3s var(--ease);
}
.tk__row li:hover { color: var(--ink); }
.tk__i {
  width: 24px; height: 24px; flex: none;
  fill: currentColor; opacity: .9;
}

.tk__note {
  margin-top: 28px; text-align: center; padding-inline: var(--gut);
  color: var(--ink-3); font-size: 12.5px; line-height: 1.6;
}
.tk__note b { color: var(--ink-2); font-weight: 650; }

@media (prefers-reduced-motion: reduce) {
  .tk__track { animation: none; width: 100%; justify-content: center; flex-wrap: wrap; }
  .tk__track > ul[aria-hidden="true"] { display: none; }
  .tk__row { flex-wrap: wrap; justify-content: center; gap: 20px 34px; padding-right: 0; }
}

/* ── Problem ─────────────────────────────────────────────── */
.probs { display: grid; gap: 20px; }
@media (min-width: 860px) { .probs { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.prob {
  padding: 34px 30px 36px;
  border: 1px solid var(--line-2); border-radius: var(--r);
  background: linear-gradient(180deg, rgba(15, 36, 64, .5), rgba(10, 25, 47, .22));
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.prob:hover {
  border-color: rgba(0, 240, 255, .3);
  transform: translateY(-4px);
  background: linear-gradient(180deg, rgba(15, 36, 64, .78), rgba(10, 25, 47, .3));
}
.prob__n {
  display: block; font: 600 12px/1 var(--mono); letter-spacing: .14em;
  color: var(--cyan); opacity: .75; margin-bottom: 20px;
}
.prob h3 { font-size: 21px; margin-bottom: 12px; }
.prob p  { color: var(--ink-2); font-size: 15.5px; }

/* ── Steps ───────────────────────────────────────────────── */
.steps { display: grid; }
.step {
  display: grid;
  grid-template-columns: 26px 1fr;
  grid-template-areas: "rail n" "rail body";
  column-gap: 22px;
}

.step__rail { grid-area: rail; position: relative; display: flex; justify-content: center; }
.step__rail::before {
  content: ""; position: absolute; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(180deg, var(--line), var(--line-2));
}
.step__rail--last::before { bottom: auto; height: 34px; }
.step__dot {
  position: relative; z-index: 1; margin-top: 27px;
  width: 11px; height: 11px; border-radius: 50%; flex: none;
  background: var(--navy-deep);
  border: 1.5px solid var(--ink-3);
  transition: border-color .35s var(--ease), box-shadow .35s var(--ease), background .35s var(--ease);
}
.step.is-in .step__dot {
  border-color: var(--cyan); background: var(--cyan);
  box-shadow: 0 0 0 5px rgba(0, 240, 255, .13), 0 0 20px rgba(0, 240, 255, .55);
}

.step__body { grid-area: body; padding-block: 14px 40px; border-bottom: 1px solid var(--line-2); }
.step:last-child .step__body { border-bottom: 0; padding-bottom: 0; }
.step__n {
  grid-area: n; padding-top: 22px;
  font: 600 12px/1 var(--sans); letter-spacing: .02em;
  color: var(--ink-3);
}
.step h3 { font-size: clamp(22px, 2.7vw, 30px); margin-bottom: 12px; }
.step__body > p { color: var(--ink-2); max-width: 64ch; font-size: 16px; }
.step__body b { color: var(--ink); font-weight: 650; }

.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chips li {
  padding: 6px 13px; border-radius: 7px;
  border: 1px solid var(--line-2); background: rgba(20, 41, 74, .5);
  font: 600 13px/1.5 var(--sans); color: var(--ink-3);
  letter-spacing: -.005em;
}

@media (min-width: 860px) {
  .step {
    grid-template-columns: 132px 26px 1fr;
    grid-template-areas: "n rail body";
  }
  .step__n { padding-top: 26px; text-align: right; }
  .step__body { padding-top: 20px; }
}

/* ── Showcase ────────────────────────────────────────────── */
.show { padding-block: var(--sec-y); }
.show__in { display: grid; gap: clamp(40px, 6vw, 72px); align-items: center; }
@media (min-width: 940px) {
  .show__in { grid-template-columns: .92fr 1.08fr; }
  .show--flip .show__in { grid-template-columns: 1.08fr .92fr; }
}
/* Copy leads on mobile; the screenshot follows it. */
.show--flip .show__copy { order: -1; }
@media (min-width: 940px) { .show--flip .show__copy { order: 0; } }

.show--flip .show__fig img { background: #fff; }
.show__fine {
  margin-top: 22px; color: var(--ink-3); font-size: 12.5px; line-height: 1.6;
}

.show__fig { margin: 0; position: relative; }
.show__fig img {
  width: 100%; border-radius: var(--r);
  border: 1px solid var(--line);
  box-shadow: 0 40px 90px -40px rgba(0, 0, 0, .9),
              0 0 70px -30px rgba(0, 240, 255, .22);
}
.show__fig figcaption {
  margin-top: 14px; font: 600 12px/1 var(--sans);
  letter-spacing: .01em; color: var(--ink-3);
}

.ticks { margin-top: 30px; display: grid; gap: 13px; }
.ticks li {
  position: relative; padding-left: 28px; color: var(--ink-2); font-size: 15.5px;
}
.ticks li::before {
  content: ""; position: absolute; left: 2px; top: .62em;
  width: 11px; height: 6px;
  border-left: 1.8px solid var(--cyan); border-bottom: 1.8px solid var(--cyan);
  transform: rotate(-45deg);
}

/* ── Features ────────────────────────────────────────────── */
.feats { display: grid; gap: 20px; }
@media (min-width: 700px)  { .feats { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1040px) { .feats { grid-template-columns: repeat(3, 1fr); } }

.feat {
  display: flex; flex-direction: column;
  border: 1px solid var(--line-2); border-radius: var(--r);
  background: linear-gradient(180deg, rgba(15, 36, 64, .46), rgba(10, 25, 47, .2));
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease);
}
.feat:hover { border-color: rgba(0, 240, 255, .28); transform: translateY(-4px); }

.feat--wide { grid-column: span 1; }
@media (min-width: 700px)  { .feat--wide { grid-column: span 2; } }
@media (min-width: 1040px) { .feat--wide { grid-column: span 3; flex-direction: row; align-items: stretch; } }

.feat__media { overflow: hidden; background: var(--navy); }
.feat__media img {
  width: 100%; height: 100%; object-fit: cover;
  aspect-ratio: 16 / 9;
  transition: transform .8s var(--ease), opacity .4s;
  opacity: .9;
}
.feat--wide .feat__media { flex: 1.35; }
@media (min-width: 1040px) { .feat--wide .feat__media img { aspect-ratio: auto; min-height: 320px; } }
.feat__media--sq img { aspect-ratio: 4 / 3; }

.feat__media--video { background: #05070C; }
.feat__video {
  width: 100%; height: 100%; object-fit: cover;
  aspect-ratio: 16 / 9; display: block;
}
@media (min-width: 1040px) {
  .feat--wide .feat__video { aspect-ratio: auto; min-height: 320px; }
  /* Media on the right so two wide cards don't stack identically. */
  .feat--flip { flex-direction: row-reverse; }
}
.feat:hover .feat__media img { transform: scale(1.045); opacity: 1; }

.feat__body { padding: 28px 28px 30px; display: flex; flex-direction: column; justify-content: center; flex: 1; }
.feat--wide .feat__body { padding: clamp(28px, 4vw, 48px); }
.feat h3 { font-size: 20px; margin-bottom: 10px; }
.feat--wide h3 { font-size: clamp(22px, 2.4vw, 28px); }
.feat p  { color: var(--ink-2); font-size: 15.5px; }

.feat--text {
  background: rgba(10, 25, 47, .3);
  border-style: dashed; border-color: var(--line-2);
}
.feat--text .feat__body { padding-block: 34px 36px; }

/* ── Principles ──────────────────────────────────────────── */
.principles { background:
  radial-gradient(90% 60% at 50% 0%, rgba(201, 180, 154, .07), transparent 62%), var(--navy-deep); }

.nots { display: grid; gap: 1px; background: var(--line-2);
        border: 1px solid var(--line-2); border-radius: var(--r); overflow: hidden; }
@media (min-width: 820px) { .nots { grid-template-columns: repeat(2, 1fr); } }

.not {
  background: var(--navy-deep); padding: 34px 32px 36px;
  transition: background .3s var(--ease);
}
.not:hover { background: rgba(15, 36, 64, .55); }
.not__x {
  display: block; width: 22px; height: 22px; margin-bottom: 20px;
  position: relative; opacity: .9;
}
.not__x::before, .not__x::after {
  content: ""; position: absolute; top: 50%; left: 0;
  width: 100%; height: 1.8px; background: var(--tan);
}
.not__x::before { transform: rotate(45deg); }
.not__x::after  { transform: rotate(-45deg); }
.not h3 { font-size: 19px; margin-bottom: 11px; }
.not p  { color: var(--ink-2); font-size: 15.5px; max-width: 46ch; }

/* ── FAQ ─────────────────────────────────────────────────── */
.faq { border-top: 1px solid var(--line-2); }
.qa { border-bottom: 1px solid var(--line-2); }
.qa summary {
  list-style: none; cursor: pointer;
  padding: 26px 44px 26px 0; position: relative;
  font-size: clamp(16.5px, 1.9vw, 19px); font-weight: 650;
  letter-spacing: -.02em;
  transition: color .22s var(--ease);
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary:hover { color: var(--cyan); }
.qa summary::after,
.qa summary::before {
  content: ""; position: absolute; right: 6px; top: 50%;
  width: 15px; height: 1.6px; background: var(--cyan);
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.qa summary::before { transform: rotate(90deg); }
.qa[open] summary::before { transform: rotate(0); opacity: 0; }
.qa__a { padding: 0 8% 28px 0; }
.qa__a p { color: var(--ink-2); font-size: 16px; max-width: 68ch; }
.qa[open] .qa__a { animation: fadeUp .45s var(--ease) both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(-6px); } }

/* ── CTA ─────────────────────────────────────────────────── */
.cta {
  position: relative; isolation: isolate; overflow: hidden;
  padding-block: clamp(96px, 13vw, 176px);
  text-align: center;
  border-top: 1px solid var(--line-2);
}
.cta__bg { position: absolute; inset: 0; z-index: -1; }
.cta__bg img { width: 100%; height: 100%; object-fit: cover; opacity: .5; }
.cta__bg::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(75% 75% at 50% 50%, rgba(6, 14, 28, .74), var(--navy-deep) 78%);
}
.cta .kicker { justify-content: center; }
.cta__h { font-size: clamp(34px, 6vw, 68px); letter-spacing: -.045em; }
.cta__sub {
  margin: 26px auto 0; max-width: 50ch;
  color: var(--ink-2); font-size: clamp(16px, 1.7vw, 19px);
}
.cta__actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; margin-top: 40px; }
.cta__fine { margin-top: 26px; color: var(--ink-3); font-size: 13.5px; }

/* ── Footer ──────────────────────────────────────────────── */
.foot { background: var(--navy); border-top: 1px solid var(--line-2); padding-top: 64px; }
.foot__in { display: grid; gap: 32px; padding-bottom: 44px; }
@media (min-width: 780px) { .foot__in { grid-template-columns: 1fr auto; align-items: start; } }
.foot__tag { margin-top: 14px; color: var(--ink-3); font-size: 14px; }
.foot__nav { display: flex; flex-wrap: wrap; gap: 10px 26px; }
.foot__nav a { color: var(--ink-2); font-size: 14.5px; transition: color .2s var(--ease); }
.foot__nav a:hover { color: var(--cyan); }
.foot__legal {
  border-top: 1px solid var(--line-2); padding-block: 26px 34px;
  display: grid; gap: 10px;
}
.foot__legal p { color: var(--ink-3); font-size: 12.5px; line-height: 1.6; }

/* Business registration details (전자상거래법 표시사항). */
.biz {
  display: flex; flex-wrap: wrap; gap: 6px 22px;
  margin-bottom: 6px;
}
.biz > div { display: flex; align-items: baseline; gap: 7px; }
.biz dt {
  color: var(--ink-3); font-size: 12px; font-weight: 600;
  white-space: nowrap; opacity: .75;
}
.biz dd { margin: 0; color: var(--ink-2); font-size: 12.5px; }
.biz a { color: var(--ink-2); border-bottom: 1px solid var(--line); }
.biz a:hover { color: var(--cyan); border-bottom-color: currentColor; }

/* ── Reveal animation ────────────────────────────────────── */
/* Content is visible by default. Only a JS-enabled document opts into the
   hidden start state, so a script failure can never blank the page. */
.js .reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.js .reveal.is-in { opacity: 1; transform: none; }

/* ── Ultrawide ───────────────────────────────────────────── */
/* Past ~1600px the 1180px column leaves most of the screen empty and the
   hero sculpture (object-fit: contain) shrinks to a small centred block.
   Widen the measure and raise the hero cap in steps rather than letting one
   breakpoint jump straight to 3440px. */
@media (min-width: 1600px) {
  :root { --wrap: 1320px; --hero-cap: 1040px; }
  .hero__h1 { font-size: clamp(64px, 5.4vw, 120px); }
  .h2 { font-size: clamp(44px, 3.2vw, 62px); }
  .feats { gap: 24px; }
}

@media (min-width: 2200px) {
  :root { --wrap: 1560px; --hero-cap: 1180px; --sec-y: 180px; }
  body { font-size: 18px; }
  .hero__sub, .lede { font-size: 21px; }
  .tk__row li { font-size: 19px; gap: 13px; }
  .tk__i { width: 27px; height: 27px; }
}

@media (min-width: 3000px) {
  :root { --wrap: 1760px; --hero-cap: 1280px; --sec-y: 200px; }
  .hero__h1 { font-size: 132px; }
  .stats { max-width: 980px; }
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .js .reveal { opacity: 1; transform: none; }
  .hero__video { display: none; }
}