/* AsapView — gallery wall, one lit picture */
:root {
  --wall: #1c1d21;
  --wall-2: #232429;
  --wall-3: #2c2d33;
  --ink: #ecebe6;
  --ink-2: #b4b3b8;
  --ink-3: #85848b;
  --rule: rgba(236, 235, 230, .12);
  --blue: #2563eb;
  --violet: #7c3aed;
  --sky: #8fb4ff;
  --brand: linear-gradient(135deg, var(--blue), var(--violet));
  --font: "Pretendard Variable", Pretendard, -apple-system, "Segoe UI", "Malgun Gothic", system-ui, sans-serif;
  --wrap: 1180px;
  --gut: clamp(16px, 4vw, 40px);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--wall);
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  font-feature-settings: "ss06";
  -webkit-font-smoothing: antialiased;
  word-break: keep-all;
  overflow-wrap: break-word;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0 0 1em; }
h1, h2, h3 { margin: 0; font-weight: 700; line-height: 1.18; letter-spacing: -.03em; }
:focus-visible { outline: 2px solid var(--sky); outline-offset: 3px; border-radius: 4px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gut); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 50; background: var(--ink); color: var(--wall); padding: 8px 14px; }

kbd {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 1.9em; height: 1.9em; padding: 0 .5em;
  font: 600 .78em/1 var(--font);
  color: var(--ink);
  background: linear-gradient(#3a3b42, #2e2f35);
  border: 1px solid #45464e;
  border-bottom-width: 3px;
  border-radius: 6px;
  white-space: nowrap;
  vertical-align: .08em;
}
kbd + kbd { margin-left: .25em; }

/* ---------- header ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  background: rgba(28, 29, 33, .82);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.top .wrap { display: flex; align-items: center; gap: 28px; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 18px; letter-spacing: -.02em; }
.logo img { width: 26px; height: 26px; }
.nav { display: flex; gap: 22px; margin-right: auto; font-size: 15px; }
.nav a { text-decoration: none; color: var(--ink-2); }
.nav a:hover { color: var(--ink); }
.lang { font-size: 14px; color: var(--ink-2); text-decoration: none; }
.lang:hover { color: var(--ink); }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 0 22px; height: 48px;
  border-radius: 999px;
  font-weight: 650; font-size: 16px; text-decoration: none;
  color: #fff; background: var(--brand);
  box-shadow: 0 8px 28px -10px rgba(91, 76, 240, .8), inset 0 1px 0 rgba(255,255,255,.25);
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 32px -10px rgba(91, 76, 240, .95), inset 0 1px 0 rgba(255,255,255,.25); }
.btn svg { width: 18px; height: 18px; }
.btn-sm { height: 36px; padding: 0 16px; font-size: 14px; }
.btn-ghost { background: transparent; box-shadow: inset 0 0 0 1px var(--rule); color: var(--ink); }
.btn-ghost:hover { box-shadow: inset 0 0 0 1px rgba(236,235,230,.35); }

/* ---------- hero ---------- */
.hero { padding: clamp(44px, 7vw, 84px) 0 0; position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: auto 0 0 0; height: 70%;
  background: radial-gradient(60% 60% at 50% 70%, rgba(124, 58, 237, .16), transparent 70%),
              radial-gradient(40% 50% at 30% 80%, rgba(37, 99, 235, .14), transparent 70%);
  pointer-events: none;
}
.hero-head { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: 32px 56px; align-items: end; }
.hero h1 { font-size: clamp(2.4rem, 6vw, 5rem); letter-spacing: -.045em; line-height: 1.04; }
.hero h1 span { display: block; color: var(--ink-3); }
@media (min-width: 721px) { .hero h1 span { white-space: nowrap; } }
.hero .lede { font-size: clamp(1.02rem, 1.5vw, 1.18rem); color: var(--ink-2); max-width: 34em; }
.cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 20px; margin-top: 26px; }
.cta-note { font-size: 14px; color: var(--ink-3); }

/* viewer mockup */
.stage { position: relative; margin-top: clamp(40px, 6vw, 72px); padding-bottom: clamp(56px, 8vw, 96px); }
.viewer {
  position: relative;
  border-radius: 12px;
  background: #0a0a0c;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08), 0 50px 120px -40px rgba(0,0,0,.9), 0 30px 60px -30px rgba(70, 50, 160, .45);
  overflow: hidden;
  user-select: none;
}
.v-bar {
  display: flex; align-items: center; gap: 10px;
  height: 38px; padding: 0 0 0 14px;
  background: #141418;
  font-size: 13px; color: #a9a8ae;
}
.v-bar img { width: 16px; height: 16px; }
.v-bar .v-title { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.v-ctl { display: flex; height: 100%; }
.v-ctl i { width: 46px; display: grid; place-items: center; }
.v-ctl i::before { content: ""; width: 10px; height: 10px; }
.v-ctl i:nth-child(1)::before { height: 1px; background: #a9a8ae; }
.v-ctl i:nth-child(2)::before { border: 1px solid #a9a8ae; }
.v-ctl i:nth-child(3)::before {
  background: linear-gradient(45deg, transparent 46%, #a9a8ae 46%, #a9a8ae 54%, transparent 54%),
              linear-gradient(-45deg, transparent 46%, #a9a8ae 46%, #a9a8ae 54%, transparent 54%);
}
.v-canvas {
  position: relative;
  aspect-ratio: 16 / 9;
  display: grid; place-items: center;
  overflow: hidden;
  cursor: zoom-in;
  background: #0a0a0c;
}
.v-photo {
  height: 90%;
  aspect-ratio: 4 / 3;
  transition: transform .16s cubic-bezier(.2,.7,.2,1);
  box-shadow: 0 10px 40px rgba(0,0,0,.5);
}
.v-photo img { width: 100%; height: 100%; object-fit: cover; }
.v-info {
  position: absolute; left: 14px; bottom: 12px;
  padding: 6px 11px;
  font-size: 13px; color: #e6e5ea;
  background: rgba(10,10,12,.62);
  border-radius: 7px;
  backdrop-filter: blur(6px);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}
.v-nav {
  position: absolute; top: 0; bottom: 0; width: 18%;
  display: flex; align-items: center; padding: 0 16px;
  background: none; border: 0; color: #fff; cursor: pointer; opacity: 0;
  transition: opacity .15s;
}
.v-nav:hover, .v-nav:focus-visible { opacity: .9; }
.v-nav svg { width: 34px; height: 34px; padding: 8px; border-radius: 50%; background: rgba(0,0,0,.5); }
.v-prev { left: 0; }
.v-next { right: 0; justify-content: flex-end; }
.try {
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px 22px;
  margin-top: 22px; font-size: 14px; color: var(--ink-3);
}
.try span { display: inline-flex; align-items: center; gap: 8px; }
.try button { all: unset; cursor: pointer; }
.try button:focus-visible kbd { outline: 2px solid var(--sky); outline-offset: 2px; }
.try button:active kbd { transform: translateY(2px); border-bottom-width: 1px; }

/* ---------- sections ---------- */
.sec { padding: clamp(72px, 10vw, 128px) 0; border-top: 1px solid var(--rule); }
.sec-alt { background: var(--wall-2); }
.sec h2 { font-size: clamp(1.9rem, 4vw, 3.1rem); letter-spacing: -.04em; max-width: 18em; }
.sec .intro { color: var(--ink-2); font-size: 1.08rem; max-width: 36em; margin-top: 18px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px 72px; align-items: center; }

/* speed: big list with rules */
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 64px; margin-top: 56px; }
.fact { padding: 28px 0 30px; border-top: 1px solid var(--rule); }
.fact h3 { font-size: 1.32rem; margin-bottom: 10px; }
.fact p { color: var(--ink-2); margin: 0; max-width: 30em; }

/* formats: type as texture */
.fmt-groups { margin-top: 56px; display: grid; gap: 34px; }
.fmt-group { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 8px 32px; align-items: baseline; }
.fmt-group h3 { font-size: 15px; font-weight: 600; color: var(--ink-3); letter-spacing: 0; }
.fmt-list { display: flex; flex-wrap: wrap; gap: 4px 26px; margin: 0; padding: 0; list-style: none; }
.fmt-list li { font-size: clamp(1.5rem, 3.4vw, 2.6rem); font-weight: 700; letter-spacing: -.035em; line-height: 1.2; }
.fmt-list li small { font-size: .42em; font-weight: 500; color: var(--ink-3); letter-spacing: 0; margin-left: .3em; }
.fmt-list li.ext { text-decoration: underline dotted rgba(143,180,255,.7); text-decoration-thickness: 2px; text-underline-offset: .18em; }
.fmt-note { margin-top: 40px; font-size: 15px; color: var(--ink-3); }
.fmt-note b { color: var(--ink-2); font-weight: 600; text-decoration: underline dotted rgba(143,180,255,.7); text-decoration-thickness: 2px; text-underline-offset: .2em; }

/* convert dialog mock */
.dlg {
  background: #26272d; border-radius: 12px; padding: 24px;
  box-shadow: 0 0 0 1px rgba(255,255,255,.07), 0 30px 70px -30px rgba(0,0,0,.8);
  font-size: 14px;
}
.dlg-h { display: flex; justify-content: space-between; align-items: center; font-weight: 650; font-size: 15px; margin-bottom: 20px; }
.dlg-h span { font-weight: 400; color: var(--ink-3); font-size: 13px; }
.dlg-row { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid var(--rule); }
.dlg-row > b { font-weight: 500; color: var(--ink-3); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips span { padding: 4px 10px; border-radius: 6px; background: #31323a; color: var(--ink-2); font-size: 13px; font-weight: 600; }
.chips span.on { background: var(--blue); color: #fff; }
.slider { display: flex; align-items: center; gap: 12px; }
.slider i { flex: 1; height: 4px; border-radius: 2px; background: linear-gradient(90deg, var(--blue) 85%, #3a3b42 85%); position: relative; }
.slider i::after { content: ""; position: absolute; left: 85%; top: 50%; width: 16px; height: 16px; margin: -8px 0 0 -8px; border-radius: 50%; background: #fff; }
.field { display: inline-block; padding: 5px 10px; border-radius: 6px; background: #1c1d21; box-shadow: inset 0 0 0 1px var(--rule); font-variant-numeric: tabular-nums; }
.prog { margin-top: 16px; }
.prog-bar { height: 6px; border-radius: 3px; background: #31323a; overflow: hidden; }
.prog-bar i { display: block; height: 100%; width: 62%; background: var(--brand); }
.prog p { display: flex; justify-content: space-between; margin: 8px 0 0; color: var(--ink-3); font-size: 13px; font-variant-numeric: tabular-nums; }
.ticks { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 12px; }
.ticks li { padding-left: 26px; position: relative; color: var(--ink-2); }
.ticks li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px; border-left: 2px solid var(--sky); border-bottom: 2px solid var(--sky); transform: rotate(-45deg); }

/* watch folder flow */
.flow { margin-top: 56px; display: grid; grid-template-columns: minmax(0, 1fr) 72px minmax(0, 1fr); align-items: center; gap: 0 12px; }
.pane { background: var(--wall); border-radius: 12px; padding: 18px 18px 10px; box-shadow: 0 0 0 1px var(--rule); }
.sec-alt .pane { background: #1e1f23; }
.pane-h { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; margin-bottom: 10px; }
.pane-h svg { width: 20px; height: 20px; color: #f2c46d; }
.files { list-style: none; margin: 0; padding: 0; font-size: 14px; font-variant-numeric: tabular-nums; }
.files li { display: flex; justify-content: space-between; gap: 12px; padding: 9px 0; border-top: 1px solid var(--rule); color: var(--ink-2); }
.files li span:last-child { color: var(--ink-3); }
.files li.new { color: var(--ink); }
.arrow { display: grid; place-items: center; color: var(--ink-3); }
.arrow svg { width: 40px; height: 40px; }
.toast {
  display: flex; gap: 12px; align-items: flex-start;
  max-width: 360px; margin: 28px 0 0 auto;
  background: #2b2c32; border-radius: 10px; padding: 14px 16px;
  box-shadow: 0 0 0 1px rgba(255,255,255,.07), 0 20px 50px -20px rgba(0,0,0,.8);
  font-size: 14px;
}
.toast img { width: 22px; height: 22px; margin-top: 2px; }
.toast b { display: block; font-weight: 650; }
.toast span { color: var(--ink-2); }
.opts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 32px; margin-top: 56px; }
.opts div { padding-top: 20px; border-top: 1px solid var(--rule); }
.opts h3 { font-size: 1.1rem; margin-bottom: 6px; }
.opts p { color: var(--ink-2); font-size: 15px; margin: 0; }
.examples { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.examples span { padding: 7px 14px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--rule); font-size: 14px; color: var(--ink-2); }

/* rotation */
.rot { display: flex; gap: 18px; align-items: center; justify-content: center; }
.rot figure { margin: 0; width: 40%; aspect-ratio: 4/3; border-radius: 6px; overflow: hidden; box-shadow: 0 20px 50px -20px rgba(0,0,0,.8); }
.rot figure img { width: 100%; height: 100%; object-fit: cover; }
.rot figure.turned { transform: rotate(90deg) scale(.75); }
.rot-key { display: flex; flex-direction: column; align-items: center; gap: 6px; font-size: 13px; color: var(--ink-3); }

/* convenience list */
.more { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 48px; margin-top: 56px; }
.more div { padding: 22px 0; border-top: 1px solid var(--rule); }
.more h3 { font-size: 1.08rem; margin-bottom: 6px; }
.more p { color: var(--ink-2); font-size: 15px; margin: 0; }

/* shortcuts */
.keys { margin-top: 48px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 64px; }
.keys table { width: 100%; border-collapse: collapse; font-size: 15px; }
.keys caption { text-align: left; font-weight: 600; color: var(--ink-3); font-size: 14px; padding-bottom: 8px; }
.keys th, .keys td { padding: 11px 0; border-top: 1px solid var(--rule); text-align: left; vertical-align: middle; }
.keys th { font-weight: 400; color: var(--ink-2); }
.keys td { text-align: right; white-space: nowrap; }

/* faq */
.faq { margin-top: 40px; max-width: 820px; }
.faq details { border-top: 1px solid var(--rule); }
.faq details:last-child { border-bottom: 1px solid var(--rule); }
.faq summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font-weight: 600; font-size: 1.08rem; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 6px; top: 50%; width: 10px; height: 10px; margin-top: -7px; border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3); transform: rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details > div { padding: 0 0 24px; color: var(--ink-2); max-width: 44em; }
.faq details > div p:last-child { margin: 0; }

/* final cta */
.end { text-align: center; padding: clamp(80px, 11vw, 140px) 0; border-top: 1px solid var(--rule); position: relative; overflow: hidden; }
.end::before { content: ""; position: absolute; inset: 0; background: radial-gradient(50% 70% at 50% 100%, rgba(124,58,237,.18), transparent 70%); pointer-events: none; }
.end h2 { font-size: clamp(2rem, 5vw, 3.8rem); letter-spacing: -.045em; }
.end p { color: var(--ink-2); margin: 16px auto 30px; }
.end .cta-row { justify-content: center; }

/* ---------- inner pages ---------- */
.page { padding: clamp(56px, 8vw, 96px) 0 clamp(72px, 10vw, 120px); }
.page h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -.045em; }
.page .lede { color: var(--ink-2); font-size: 1.1rem; margin-top: 16px; max-width: 34em; }
.dl-card {
  margin-top: 44px; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 24px 28px; align-items: center;
  padding: 28px; border-radius: 16px; background: var(--wall-2); box-shadow: 0 0 0 1px var(--rule);
}
.dl-card > img { width: 72px; height: 72px; }
.dl-card h2 { font-size: 1.5rem; }
.dl-card p { margin: 4px 0 0; color: var(--ink-3); font-size: 15px; font-variant-numeric: tabular-nums; }
.specs { margin-top: 56px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 64px; }
.specs h2 { font-size: 1.35rem; margin-bottom: 14px; }
.specs dl { margin: 0; display: grid; grid-template-columns: 9em minmax(0, 1fr); }
.specs dt, .specs dd { margin: 0; padding: 11px 0; border-top: 1px solid var(--rule); font-size: 15px; }
.specs dt { color: var(--ink-3); }
.specs dd { color: var(--ink-2); }
.steps { margin: 0; padding: 0; list-style: none; counter-reset: s; }
.steps li { counter-increment: s; padding: 11px 0 11px 36px; border-top: 1px solid var(--rule); position: relative; color: var(--ink-2); font-size: 15px; }
.steps li::before { content: counter(s); position: absolute; left: 0; top: 11px; width: 24px; height: 24px; border-radius: 50%; background: var(--wall-3); color: var(--ink); display: grid; place-items: center; font-size: 13px; font-weight: 650; }
.exts { margin-top: 56px; }
.exts h2 { font-size: 1.35rem; margin-bottom: 6px; }
.exts > p { color: var(--ink-3); font-size: 15px; }
.exts ul { list-style: none; padding: 0; margin: 14px 0 0; }
.exts li { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 6px 20px; padding: 13px 0; border-top: 1px solid var(--rule); font-size: 15px; }
.exts li span { color: var(--ink-3); }
.exts a { color: var(--sky); }
.prose { max-width: 720px; margin-top: 40px; color: var(--ink-2); }
.prose h2 { color: var(--ink); font-size: 1.3rem; margin: 40px 0 12px; }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .5em; }
.prose a { color: var(--sky); }
.muted { color: var(--ink-3); font-size: 14px; }

/* ---------- footer ---------- */
.foot { border-top: 1px solid var(--rule); padding: 36px 0 44px; font-size: 14px; color: var(--ink-3); }
.foot .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 8px 22px; }
.foot a { text-decoration: none; color: var(--ink-2); }
.foot a:hover { color: var(--ink); }
.foot p { margin: 0; }
.foot a[href^="mailto"] { white-space: nowrap; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .nav { display: none; }
  .top .wrap { gap: 18px; }
  .lang { margin-left: auto; }
  .hero-head, .split { grid-template-columns: minmax(0, 1fr); }
  .more { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fmt-group { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .facts, .keys, .opts, .more, .specs { grid-template-columns: minmax(0, 1fr); }
  .keys { gap: 32px; }
  .flow { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .arrow svg { transform: rotate(90deg); }
  .v-canvas { aspect-ratio: 4 / 3.4; }
  .v-photo { height: auto; width: 94%; }
  .v-info { font-size: 11px; left: 8px; bottom: 8px; padding: 4px 8px; }
  .v-ctl i { width: 34px; }
  .dl-card { grid-template-columns: minmax(0, 1fr); }
  .dl-card > img { width: 56px; height: 56px; }
  .dlg { padding: 18px; }
  .dlg-row { grid-template-columns: minmax(0, 1fr); gap: 8px; }
  .toast { margin-left: 0; }
  .top .btn-sm { display: none; }
  .specs dl { grid-template-columns: 7em minmax(0, 1fr); }
  .keys td { white-space: normal; padding-left: 12px; }
  .rot figure.turned { transform: rotate(90deg) scale(.85); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}