:root {
  --bg: #0b1020;
  --bg2: #141c38;
  --card: rgba(255,255,255,.04);
  --line: rgba(255,255,255,.09);
  --text: rgb(240,240,245);
  --muted: #8a94a8;
  --rim: rgb(90,150,235);
  --gold: rgb(240,200,90);
  --green: rgb(95,205,160);
  --blue: rgb(120,190,255);
  --red: rgb(235,70,70);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; color: var(--text); line-height: 1.55;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 700px at 75% -10%, rgba(90,150,235,.18), transparent 60%),
              linear-gradient(180deg, var(--bg2), var(--bg) 600px);
  background-color: var(--bg);
  min-height: 100vh;
}
a { color: var(--blue); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 24px; }

/* Hero */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 480px); gap: 48px; align-items: center; padding: 72px 0 40px; }
.brand { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.brand img { width: 72px; height: 72px; }
.brand span { font-size: 15px; color: var(--muted); letter-spacing: .02em; }
h1 { font-size: clamp(40px, 6vw, 64px); line-height: 1.05; margin: 0 0 16px; letter-spacing: -.02em; font-weight: 800; }
.tagline { font-size: clamp(19px, 2.4vw, 24px); color: var(--green); margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer;
  font: 600 17px/1 inherit; font-family: inherit; border-radius: 999px; padding: 15px 26px;
  border: 1.5px solid transparent; transition: transform .12s ease, box-shadow .12s ease, background .12s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--blue); color: #08111f; box-shadow: 0 8px 30px rgba(120,190,255,.25); }
.btn-primary:hover { background: #93ccff; }
.btn-ghost { background: var(--card); color: var(--blue); border-color: var(--rim); }
.btn-ghost:hover { background: rgba(120,190,255,.08); }
.btn-ghost.speaking { color: var(--red); border-color: var(--red); }
.btn svg { width: 20px; height: 20px; flex: none; }
.meta { margin-top: 14px; font-size: 14px; color: var(--muted); }
.meta b { color: var(--text); font-weight: 600; }
.badge {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; padding: 10px 14px;
  border-radius: 14px; background: rgba(95,205,160,.10); border: 1px solid rgba(95,205,160,.35);
  font-size: 14px; color: var(--text); text-align: left;
}
.badge svg { width: 22px; height: 22px; flex: none; color: var(--green); }
.badge small { display: block; color: var(--muted); font-size: 12.5px; }
.facts { list-style: none; padding: 0; margin: 14px 0 0; display: grid; gap: 8px; }
.facts li { color: var(--muted); font-size: 15px; padding-left: 26px; position: relative; }
.facts li::before { content: "✓"; position: absolute; left: 0; color: var(--green); font-weight: 800; }
.facts b { color: var(--text); }
pre.verify {
  margin: 16px 0 0; padding: 14px 16px; border-radius: 12px; background: rgba(0,0,0,.35); border: 1px solid var(--line);
  font: 13px/1.6 "SF Mono", ui-monospace, Menlo, monospace; color: var(--text); overflow-x: auto; white-space: pre;
}
pre.verify .c { color: var(--muted); }
pre.verify .o { color: var(--green); }
.said { min-height: 1.6em; margin-top: 14px; color: var(--gold); font-size: 15px; }

.shot { justify-self: center; position: relative; width: 100%; max-width: 480px; }
.shot::before {
  content: ""; position: absolute; inset: 8% -6%; border-radius: 50%;
  background: radial-gradient(closest-side, rgba(90,150,235,.35), transparent); filter: blur(10px); z-index: -1;
}
.shot img { width: 100%; height: auto; display: block; }

/* Sections */
section { padding: 40px 0; }
h2 { font-size: 28px; margin: 0 0 22px; letter-spacing: -.01em; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; }
.card h3 { margin: 10px 0 6px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.dot { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 18px; }

.lead { color: var(--muted); margin: -8px 0 22px; }
.install { display: grid; grid-template-columns: 1fr 380px; gap: 28px; align-items: start; }
ol.howto { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
ol.howto li {
  counter-increment: s; position: relative; padding: 16px 18px 16px 62px; border-radius: 16px;
  background: var(--card); border: 1px solid var(--line); color: var(--muted); font-size: 15px;
}
ol.howto li::before {
  content: counter(s); position: absolute; left: 18px; top: 15px; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; background: var(--gold); color: #1a1400; font-weight: 800;
}
ol.howto li b { color: var(--text); }
kbd { font: 12px "SF Mono", ui-monospace, Menlo, monospace; padding: 2px 6px; border-radius: 5px; border: 1px solid var(--line); background: rgba(255,255,255,.06); color: var(--text); }
figure.dmgshot { margin: 0; position: sticky; top: 24px; text-align: center; }
figure.dmgshot img { width: 100%; height: auto; display: block; }
figure.dmgshot figcaption { color: var(--muted); font-size: 14px; margin-top: 6px; }
.note { color: var(--muted); font-size: 14px; margin: 18px 0 0; }
ol.steps { counter-reset: s; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
ol.steps li { counter-increment: s; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 22px; color: var(--muted); font-size: 15px; }
ol.steps li::before {
  content: counter(s); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%;
  background: var(--gold); color: #1a1400; font-weight: 800; margin-bottom: 10px;
}
ol.steps li b { color: var(--text); }

.trust { display: flex; gap: 14px; align-items: flex-start; }
.trust .dot { flex: none; background: rgba(95,205,160,.15); }
.trust > div, .install > *, .hero > * { min-width: 0; }
code { font-family: "SF Mono", ui-monospace, Menlo, monospace; font-size: .9em; background: rgba(255,255,255,.06); padding: 2px 6px; border-radius: 6px; word-break: break-all; }

footer { border-top: 1px solid var(--line); margin-top: 40px; padding: 28px 0 48px; color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: center; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }

/* Live replica of the app window (built by talk.js; replaces screenshot.png).
   Laid out like the app, in its 480x740 design: --u is one design point, so it scales like the app does. */
.win {
  width: 480px; max-width: 100%; aspect-ratio: 480 / 740; border-radius: 12px; position: relative;
  container-type: inline-size; background: #0b0810; border: 1px solid rgba(255,255,255,.10);
  box-shadow: 0 24px 60px rgba(0,0,0,.55), 0 0 0 .5px rgba(0,0,0,.6);
  --chrome: linear-gradient(180deg, #fff, #8c8c8c 33%, #ebebeb 66%, #6b6b6b);
}
.cab { position: absolute; inset: 0; --u: calc(100cqw / 480); font-family: ui-serif, "New York", Georgia, serif; }
.cab > * { position: absolute; left: calc(42 * var(--u)); width: calc(396 * var(--u)); }
.cab button { font-family: inherit; cursor: pointer; padding: 0; border: 0; background: none; color: inherit; }
.cab .shell { left: 0; top: 0; width: 100%; height: 100%; display: block; }
.win .lights { position: absolute; top: 10px; left: 11px; display: flex; gap: 6px; }
.win .lights i { width: 8px; height: 8px; border-radius: 50%; display: block; }
.cab .marquee {
  top: calc(26 * var(--u)); height: calc(44 * var(--u)); text-align: center; color: #ffba46;
  font: calc(38 * var(--u))/calc(44 * var(--u)) "Brush Script MT", "Snell Roundhand", cursive; text-shadow: 0 0 calc(5 * var(--u)) #ba2222;
}
.cab .frame {
  left: calc(48 * var(--u)); width: calc(384 * var(--u)); top: calc(78 * var(--u)); height: calc(221.25 * var(--u));
  padding: calc(6 * var(--u)); border-radius: calc(8 * var(--u)); background: var(--chrome); box-shadow: 0 3px 6px rgba(0,0,0,.7);
}
.cab .video { width: 100%; height: 100%; border-radius: calc(4 * var(--u)); overflow: hidden; background: #000; }
.cab .video > * { width: 100%; height: 100%; display: block; border: 0; }
.cab .rack {
  top: calc(308 * var(--u)); height: calc(296 * var(--u)); padding: calc(8 * var(--u)); overflow-y: auto;
  display: grid; grid-template-columns: 1fr 1fr; gap: calc(5 * var(--u)) calc(8 * var(--u)); align-content: start;
  background: rgba(0,0,0,.55); border: calc(2 * var(--u)) solid #bdbdbd; border-radius: calc(6 * var(--u)); scrollbar-width: thin;
}
.cab .strip {
  height: calc(52 * var(--u)); min-width: 0; display: grid; grid-template-columns: auto 1fr calc(14 * var(--u)); align-items: center;
  gap: calc(5 * var(--u)); padding: 0 calc(6 * var(--u)); color: #2a1210; text-align: center;
  background: linear-gradient(180deg, #f8f0d8, #e8dcba); border-radius: calc(2 * var(--u));
}
.cab .strip.sel { box-shadow: inset 0 0 0 calc(2.5 * var(--u)) #ffba46, 0 0 calc(5 * var(--u)) #ffba46; }
.cab .strip .code {
  width: calc(24 * var(--u)); height: calc(24 * var(--u)); border-radius: 50%; display: grid; place-items: center;
  background: #ba2222; color: #f8f0d8; font-size: calc(11 * var(--u)); font-weight: 800;
}
.cab .strip .txt { min-width: 0; }
.cab .strip b { display: block; font-size: calc(12.5 * var(--u)); line-height: 1.12; }
.cab .strip small {
  display: block; margin-top: calc(2 * var(--u)); padding-top: calc(2 * var(--u)); border-top: max(1px, calc(1 * var(--u))) solid #ba2222;
  color: #ba2222; font-size: calc(8.5 * var(--u)); font-weight: 600; letter-spacing: .05em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cab .strip svg { width: calc(13 * var(--u)); height: calc(13 * var(--u)); color: #ba2222; opacity: 0; }
.cab .strip.on svg { opacity: 1; }
.cab .controls { top: calc(614.5 * var(--u)); height: calc(46 * var(--u)); display: flex; align-items: center; gap: calc(10 * var(--u)); }
.cab .amber {
  width: calc(76 * var(--u)); height: calc(40 * var(--u)); display: grid; place-items: center; text-align: center; line-height: 1.15;
  color: #2a1210; font-weight: 700; font-size: calc(11 * var(--u)); text-decoration: none;
  background: radial-gradient(circle, #ffd980, #ffba46); border: calc(2 * var(--u)) solid #d5d5d5; border-radius: calc(4 * var(--u));
  box-shadow: 0 0 calc(5 * var(--u)) rgba(255,186,70,.5);
}
.cab .amber.big { font-size: calc(22 * var(--u)); }
.cab .pb {
  width: calc(150 * var(--u)); height: calc(44 * var(--u)); border-radius: 999px; display: inline-flex; align-items: center; justify-content: center;
  gap: calc(7 * var(--u)); color: #f8f0d8; font-weight: 700; font-size: calc(19 * var(--u));
  box-shadow: inset 0 0 0 calc(3 * var(--u)) #cfcfcf, 0 2px 6px rgba(0,0,0,.6);
}
.cab .pb svg { width: calc(20 * var(--u)); height: calc(20 * var(--u)); }
.cab .pb-play { background: linear-gradient(180deg, #33ad5c, #0a5224); }
.cab .pb-stop { background: linear-gradient(180deg, #eb4038, #800f14); }
.cab .pb:disabled { opacity: .5; cursor: default; }
.cab .panel {
  top: calc(670 * var(--u)); height: calc(42 * var(--u)); padding: 0 calc(10 * var(--u)); display: flex; align-items: center; gap: calc(10 * var(--u));
  background: rgba(0,0,0,.7); border-radius: calc(6 * var(--u));
}
.cab .grille {
  flex: 1; height: calc(33 * var(--u));
  background: repeating-linear-gradient(180deg, #d9d9d9 0 calc(3.5 * var(--u)), transparent calc(3.5 * var(--u)) calc(7.5 * var(--u)));
}
.cab .vol { display: flex; align-items: center; gap: calc(6 * var(--u)); color: #ffba46; }
.cab .vol svg { width: calc(12 * var(--u)); height: calc(12 * var(--u)); flex: none; }
.cab .vol input { width: calc(130 * var(--u)); margin: 0; accent-color: #ffba46; cursor: pointer; }
.cab .neon { opacity: .8; transition: opacity .6s, filter .6s; }
.cab.lit .neon { opacity: 1; filter: drop-shadow(0 0 5px rgba(255,115,50,.95)); }

/* Per-language fonts and line breaking */
:lang(ko) body { font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif; word-break: keep-all; }
:lang(ja) body { font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", Meiryo, sans-serif; line-break: strict; }
:lang(zh) body { font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Noto Sans SC", "Microsoft YaHei", sans-serif; line-break: strict; }

/* Language switcher */
nav.langs { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 4px; padding-top: 18px; font-size: 14px; }
nav.langs a { color: var(--muted); text-decoration: none; padding: 6px 12px; border-radius: 999px; border: 1px solid transparent; }
nav.langs a:hover { color: var(--text); background: var(--card); }
nav.langs a[aria-current] { color: var(--text); border-color: var(--line); background: var(--card); }
.hero { padding-top: 40px; }

@media (max-width: 820px) {
  nav.langs { justify-content: center; }
  .hero { grid-template-columns: 1fr; padding-top: 24px; gap: 32px; text-align: center; }
  .brand, .cta { justify-content: center; }
  .grid, ol.steps, .install { grid-template-columns: 1fr; }
  figure.dmgshot { position: static; max-width: 420px; margin: 0 auto; order: -1; }
}
@media (max-width: 480px) {
  .wrap { padding: 0 16px; }
  .btn { width: 100%; justify-content: center; }
}