/* Palette follows the app icon: night indigo, gold, cyan. Layout: one narrow reading column; the hero pairs the pitch with a live mock of the app's client cards. */
:root {
  --ink: #1a1630;
  --paper: #f3f1f8;
  --panel: #ffffff;
  --line: #dcd6ea;
  --muted: #5e5878;
  --jade: #0f7f8a;
  --bronze: #9a5d0c;
  --good: #1f7a4a;
  --warn: #9a6700;
  --danger: #c23a2b;
  --card: #1a1730;
  --card-2: #231f3d;
  --card-fg: #ece8f7;
  --card-muted: #a39cbf;
  --display: "Chakra Petch", "Bahnschrift", "Segoe UI", sans-serif;
  --body: "IBM Plex Sans", "Segoe UI", system-ui, sans-serif;
  --mono: "IBM Plex Mono", "Cascadia Mono", Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #ece8f7; --paper: #0c0a1c; --panel: #15122b; --line: #2a2547;
    --muted: #a39cbf; --jade: #3fd0dc; --bronze: #f0b44c;
    --good: #4cc47e; --warn: #d9a53a; --danger: #e5574a;
    --card: #1a1730; --card-2: #231f3d;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #ece8f7; --paper: #0c0a1c; --panel: #15122b; --line: #2a2547;
  --muted: #a39cbf; --jade: #3fd0dc; --bronze: #f0b44c;
  --good: #4cc47e; --warn: #d9a53a; --danger: #e5574a;
  --card: #1a1730; --card-2: #231f3d;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--body);
}
a { color: var(--jade); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--bronze); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); line-height: 1.15; text-wrap: balance; margin: 0; }
p { margin: 0; }
code { font-family: var(--mono); font-size: 0.92em; }

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* Top bar */
.top { padding-block: 20px; }
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font: 700 1.15rem var(--display); color: var(--ink); text-decoration: none; letter-spacing: 0.02em; }
.brand img { width: 32px; height: 32px; }
.top nav { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px; font-size: 0.95rem; }
.top nav a { color: var(--muted); text-decoration: none; }
.top nav a:hover { color: var(--ink); }
.lang-menu { position: relative; }
.lang-menu summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px;
  font: 600 0.78rem var(--mono); letter-spacing: 0.06em; color: var(--ink);
}
.lang-menu summary::-webkit-details-marker { display: none; }
.lang-menu summary::after {
  content: ""; width: 6px; height: 6px; margin: -3px 2px 0 2px;
  border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg);
}
.lang-menu[open] summary, .lang-menu summary:hover { border-color: var(--jade); }
.lang-menu ul {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 20;
  list-style: none; margin: 0; padding: 6px; min-width: 190px;
  display: grid; gap: 2px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px;
  box-shadow: 0 18px 40px -18px rgb(0 0 0 / 0.5);
}
.top nav .lang-menu li a { display: flex; align-items: center; gap: 10px; padding: 8px 10px; border-radius: 7px; color: var(--ink); font-size: 0.92rem; }
.top nav .lang-menu li a:hover { background: var(--paper); }
.top nav .lang-menu li a[aria-current="page"] { color: var(--jade); font-weight: 600; }
.flag { width: 22px; height: 16px; flex: none; border-radius: 3px; object-fit: cover; box-shadow: 0 0 0 1px rgb(0 0 0 / 0.18); }

/* Hero */
.hero { padding-block: 40px 72px; }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr); gap: 48px; align-items: center; }
.eyebrow { font: 600 0.78rem var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--bronze); }
.hero h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 700; margin-top: 14px; }
.hero h1 em { font-style: normal; color: var(--jade); }
.lede { margin-top: 18px; font-size: 1.12rem; color: var(--muted); max-width: 34em; }
.actions { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 10px;
  font: 600 1rem var(--display); letter-spacing: 0.02em; text-decoration: none;
  transition: transform 120ms ease, background-color 120ms ease;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--jade); color: var(--paper); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost { color: var(--ink); border: 1px solid var(--line); background: var(--panel); }
.btn-ghost:hover { border-color: var(--jade); }
.fine { margin-top: 14px; font: 400 0.85rem var(--mono); color: var(--muted); }

/* App mock */
.mock {
  background: var(--card); color: var(--card-fg);
  border-radius: 14px; padding: 18px;
  box-shadow: 0 24px 60px -24px rgb(0 0 0 / 0.45);
  border: 1px solid rgb(255 255 255 / 0.06);
  min-width: 0;
}
.mock-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding: 2px 4px 14px; }
.mock-head b { font: 700 1.15rem var(--display); }
.mock-head span { font: 400 0.78rem var(--body); color: var(--card-muted); }
.pill { font: 600 0.72rem var(--body); color: #4cc47e; background: rgb(255 255 255 / 0.07); padding: 4px 10px; border-radius: 999px; }
.client {
  display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 2fr) auto; gap: 12px; align-items: center;
  background: var(--card-2); border-radius: 10px; padding: 12px 14px;
}
.client + .client { margin-top: 8px; }
.who b { display: block; font: 600 0.98rem var(--body); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.who small { font-size: 0.74rem; color: var(--card-muted); }
.stats { display: flex; flex-wrap: wrap; gap: 4px 14px; font: 400 0.78rem var(--mono); color: var(--card-muted); font-variant-numeric: tabular-nums; min-width: 0; }
.stats .srv { color: var(--card-fg); }
.rtt[data-level="good"] { color: #4cc47e; }
.rtt[data-level="warn"] { color: #d9a53a; }
.rtt[data-level="bad"] { color: #e5574a; }
.dc { font: 600 0.78rem var(--body); color: #fff; background: #c23a2b; border-radius: 7px; padding: 7px 12px; white-space: nowrap; }
.reading b { color: var(--card-muted); }
.example-note { margin-top: 12px; font: 400 0.75rem var(--body); color: var(--card-muted); text-align: right; }

/* Sections */
section.block { padding-block: 64px; border-top: 1px solid var(--line); }
.block h2 { font-size: clamp(1.6rem, 3.2vw, 2.1rem); }
.block .intro { margin-top: 12px; color: var(--muted); max-width: 38em; }

.features { margin-top: 36px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 40px; }
.feature h3 { font-size: 1.12rem; display: flex; align-items: center; gap: 10px; }
.feature h3 svg { width: 22px; height: 22px; color: var(--jade); flex: none; }
.feature p { margin-top: 8px; color: var(--muted); }

/* Name-reading explainer */
.ocr { margin-top: 36px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 40px; align-items: center; }
.scene {
  position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 4 / 3; max-width: 100%;
  background:
    radial-gradient(120% 90% at 50% 60%, #3c4a2c 0%, #26301d 55%, #161c12 100%);
  display: grid; place-items: center;
}
.plate { text-align: center; font: 500 clamp(0.8rem, 1.9vw, 0.95rem)/1.5 var(--body); text-shadow: 0 1px 2px #000; transform: translateY(-34%); }
.plate .guild { color: #e9e4d0; font-size: 0.9em; }
.plate .line { white-space: nowrap; }
.plate .lv { color: #8fdc6b; }
.plate .title { color: #5fc4ff; }
.plate .name { color: #ffd34d; position: relative; padding: 2px 4px; }
.plate .name::after {
  content: ""; position: absolute; inset: -3px -5px;
  border: 1.5px dashed #6cc3a6; border-radius: 4px;
  animation: scan 2.4s ease-in-out infinite;
}
.hero-figure { position: absolute; left: 50%; top: 52%; width: 14%; aspect-ratio: 1 / 2; transform: translateX(-50%); border-radius: 40% 40% 20% 20%; background: linear-gradient(#9a7a5a, #4a3626); opacity: 0.85; }
.crosshair { position: absolute; left: 50%; top: 0; bottom: 0; border-left: 1px dashed rgb(108 195 166 / 0.45); }
.scene figcaption { position: absolute; left: 12px; bottom: 10px; font: 400 0.72rem var(--mono); color: #b9c8bf; }
@keyframes scan { 0%, 100% { opacity: 0.35; } 50% { opacity: 1; } }
.steps { display: grid; gap: 18px; counter-reset: step; }
.steps li { list-style: none; display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: 12px; }
.steps li::before { counter-increment: step; content: counter(step); font: 700 1.1rem var(--display); color: var(--bronze); }
.steps { padding: 0; margin: 0; }
.steps b { display: block; font-weight: 600; }
.steps span { color: var(--muted); }

/* Install */
.install { margin-top: 32px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 32px; }
.install ol { margin: 0; padding-left: 1.3em; display: grid; gap: 10px; }
.install ol li::marker { color: var(--bronze); font-family: var(--display); font-weight: 700; }
.install h3 { font-size: 1.1rem; margin-bottom: 14px; }
.note { margin-top: 18px; padding: 14px 16px; border-radius: 10px; background: var(--panel); border: 1px solid var(--line); color: var(--muted); font-size: 0.95rem; }
pre { margin: 0; padding: 14px 16px; border-radius: 10px; background: var(--card); color: var(--card-fg); overflow-x: auto; font: 400 0.88rem/1.6 var(--mono); }

/* Tip */
.tip {
  margin-top: 8px; display: flex; gap: 28px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 28px;
}
.tip .copy { max-width: 36em; min-width: 0; }
.tip .actions { margin-top: 0; }
#feedback + #tip { border-top: 0; padding-top: 0; }
.tip h2 { font-size: 1.6rem; }
.tip p { margin-top: 8px; color: var(--muted); }
.btn-tip { background: var(--bronze); color: var(--paper); }
.btn-tip:hover { transform: translateY(-1px); }

footer { padding-block: 40px 56px; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.88rem; }
footer .wrap { display: grid; gap: 10px; }
footer .row { display: flex; flex-wrap: wrap; gap: 8px 24px; }

@media (max-width: 860px) {
  .hero .wrap, .ocr, .install { grid-template-columns: minmax(0, 1fr); }
  .features { grid-template-columns: minmax(0, 1fr); gap: 26px; }
  .hero { padding-block: 16px 56px; }
}
@media (max-width: 520px) {
  .top nav .section-link { display: none; }
  .client { grid-template-columns: minmax(0, 1fr) auto; }
  .stats { grid-column: 1 / -1; grid-row: 2; }
  .top nav { gap: 14px; }
  .tip { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  .plate .name::after { animation: none; opacity: 1; }
  .btn { transition: none; }
}