:root {
  --bg: #06060b;
  --panel: rgba(19, 19, 28, 0.72);
  --panel-solid: #111119;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #ececf5;
  --muted: #9a9ab0;
  --dim: #6c6c82;
  --accent: #8b7cff;
  --accent-2: #3ee0c8;
  --accent-soft: rgba(139, 124, 255, 0.16);
  --danger: #ff7a8a;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

[data-accent='teal'] { --accent: #3ee0c8; --accent-2: #7c9cff; --accent-soft: rgba(62, 224, 200, 0.16); }
[data-accent='rose'] { --accent: #ff7a9c; --accent-2: #ffb36b; --accent-soft: rgba(255, 122, 156, 0.16); }
[data-accent='amber'] { --accent: #ffc46b; --accent-2: #ff8f6b; --accent-soft: rgba(255, 196, 107, 0.16); }

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }
a { color: var(--accent); }

.aurora { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.aurora i {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.5;
  animation: drift 24s ease-in-out infinite alternate;
}
.aurora i:nth-child(1) { width: 46vw; height: 46vw; left: -8vw; top: -14vw; background: #5b4bff; }
.aurora i:nth-child(2) { width: 38vw; height: 38vw; right: -6vw; top: 18vh; background: #0f8f8f; animation-delay: -8s; opacity: 0.35; }
.aurora i:nth-child(3) { width: 30vw; height: 30vw; left: 34vw; bottom: -14vw; background: #b13bff; animation-delay: -14s; opacity: 0.25; }

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(4vw, 3vh, 0) scale(1.12); }
}

/* Low-power devices (Chromebooks, old laptops, 2G/save-data): the animated
   90px blur and frosted panels are the most expensive thing on the page. */
[data-lite] .aurora { display: none; }
[data-lite] body {
  background: radial-gradient(circle at 50% -10%, rgba(139, 124, 255, 0.12), transparent 55%), var(--bg);
}
[data-lite] .card,
[data-lite] .rail,
[data-lite] .dock {
  backdrop-filter: none; background: var(--panel-solid);
}
[data-lite] .sheet::backdrop { backdrop-filter: none; }
[data-lite] .quick:hover { transform: none; }
[data-lite] .card { box-shadow: 0 10px 28px rgba(0, 0, 0, 0.42); }

[data-reduce-motion] .aurora i { animation: none; }
@media (prefers-reduced-motion: reduce) {
  .aurora i { animation: none; }
  .quick, .tab, .btn, .rail-btn, .sw { transition: none; }
}

.hidden, [hidden] { display: none !important; }

/* ---------- auth ---------- */

.auth {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, 420px);
  gap: 64px;
  align-items: center;
  max-width: 1180px;
  margin: 0 auto;
  padding: 56px 32px;
  overflow-y: auto;
}

.hero h1 {
  margin: 22px 0 14px;
  font-size: clamp(40px, 5.4vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 700;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: 0.32em; font-size: 13px; color: #fff; }
.mark {
  display: grid; place-items: center; width: 32px; height: 32px; border-radius: 10px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
  color: #08080e; font-size: 17px; letter-spacing: 0;
  box-shadow: 0 0 30px rgba(139, 124, 255, 0.45);
}

.lede { max-width: 46ch; color: #b9b9cc; font-size: 16.5px; }

.feature-list { list-style: none; margin: 34px 0 30px; padding: 0; display: grid; gap: 16px; max-width: 480px; }
.feature-list li {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px; align-items: baseline;
  padding-bottom: 14px; border-bottom: 1px solid var(--line);
}
.feature-list b { font-size: 14px; letter-spacing: -0.01em; }
.feature-list span { color: var(--muted); font-size: 14px; }

.pill-row { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  padding: 6px 12px; border-radius: 999px; font-size: 12.5px; color: #cfcfe0;
  border: 1px solid var(--line-strong); background: rgba(255, 255, 255, 0.03);
}

.card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(24px);
}

.auth-card { padding: 26px; }
.auth-card::before {
  content: ''; position: absolute; inset: -1px; border-radius: 26px; padding: 1px;
  background: linear-gradient(140deg, rgba(139, 124, 255, 0.5), transparent 42%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events: none;
}

.segmented { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 4px; background: rgba(255, 255, 255, 0.04); border-radius: 14px; margin-bottom: 22px; }
.seg { padding: 9px 12px; border-radius: 10px; color: var(--muted); font-size: 14px; font-weight: 500; transition: 0.18s; }
.seg:hover { color: var(--text); }
.seg.on { background: rgba(255, 255, 255, 0.09); color: #fff; box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3); }

.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-size: 12.5px; color: var(--muted); margin-bottom: 6px; letter-spacing: 0.01em; }
.field input {
  width: 100%; padding: 12px 14px; border-radius: 12px; background: rgba(8, 8, 14, 0.7);
  border: 1px solid var(--line-strong); outline: none; transition: border-color 0.16s, box-shadow 0.16s;
}
.field input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.pass-wrap { position: relative; display: block; }
.pass-wrap input { padding-right: 46px; }
.pass-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  width: 34px; height: 34px; display: grid; place-items: center;
  border-radius: 9px; color: var(--dim);
}
.pass-toggle:hover { color: var(--text); background: rgba(255, 255, 255, 0.06); }
.pass-toggle svg { width: 17px; height: 17px; }

.dm-bar { display: flex; align-items: center; gap: 8px; padding: 10px 12px; border-bottom: 1px solid var(--line); }
.conv {
  padding: 6px 11px; border-radius: 999px; font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.04);
}
.conv.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.dm-form { flex: 1; display: flex; align-items: center; gap: 4px; padding: 2px 4px 2px 9px; border-radius: 999px; background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); }
.dm-form span { color: var(--dim); font-size: 12.5px; }
.dm-form input { flex: 1; min-width: 0; background: none; border: 0; outline: none; font-size: 12.5px; padding: 6px 0; }
.dm-form input::placeholder { color: var(--dim); }
.dm-form button { width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; color: #0a0a12; background: var(--accent); font-size: 13px; }
.dm-banner { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 8px 14px; font-size: 12px; color: var(--accent); background: var(--accent-soft); border-bottom: 1px solid var(--line); }
.dm-banner button { font-size: 11.5px; color: var(--muted); padding: 4px 8px; border-radius: 8px; border: 1px solid var(--line-strong); }
.dm-banner button:hover { color: var(--text); }
.chip.other { cursor: pointer; }
.chip.other:hover { border-color: var(--accent); color: var(--accent); }

.form-error { min-height: 20px; margin: 4px 2px 10px; color: var(--danger); font-size: 13px; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 18px; border-radius: 12px; font-weight: 600; font-size: 14.5px;
  border: 1px solid transparent; transition: transform 0.12s, filter 0.16s, background 0.16s;
}
.btn:active { transform: translateY(1px); }
.btn.primary {
  width: 100%; color: #0a0a12; background: linear-gradient(100deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(139, 124, 255, 0.28);
}
.btn.primary[disabled] { filter: grayscale(0.4) brightness(0.8); cursor: progress; }
.btn.ghost { background: rgba(255, 255, 255, 0.06); border-color: var(--line-strong); }
.btn.ghost:hover { background: rgba(255, 255, 255, 0.1); }
.btn.small { padding: 7px 12px; font-size: 13px; }

.fineprint { color: var(--dim); font-size: 12px; margin: 16px 2px 0; line-height: 1.55; }

/* ---------- app shell ---------- */

.app {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 64px minmax(0, 1fr) 336px;
  height: 100vh;
  height: 100dvh;
}
.app.dock-hidden { grid-template-columns: 64px minmax(0, 1fr); }
.app.dock-hidden .dock { display: none; }

.rail {
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  padding: 14px 0 16px; border-right: 1px solid var(--line);
  background: rgba(9, 9, 15, 0.7); backdrop-filter: blur(18px);
}
.rail-logo {
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 12px;
  background: linear-gradient(140deg, var(--accent), var(--accent-2)); color: #08080e;
  font-size: 19px; margin-bottom: 8px; box-shadow: 0 0 24px rgba(139, 124, 255, 0.35);
}
.rail-group { display: flex; flex-direction: column; gap: 6px; }
.rail-btn {
  position: relative; width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 12px; color: var(--muted); transition: 0.16s;
}
.rail-btn:hover { background: rgba(255, 255, 255, 0.06); color: var(--text); }
.rail-btn.on { background: var(--accent-soft); color: var(--accent); }
.rail-btn .dot { position: absolute; top: 8px; right: 9px; width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 0 2px #0a0a12; }
.rail-spacer { flex: 1; }
.rail-me { position: relative; }
.avatar {
  width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(255, 255, 255, 0.08); border: 1px solid var(--line-strong);
  font-size: 14px; font-weight: 650; color: var(--text); text-transform: uppercase;
}
.avatar:hover { border-color: var(--accent); }

.menu {
  position: absolute; left: 46px; bottom: 0; width: 190px; padding: 8px;
  background: var(--panel-solid); border: 1px solid var(--line-strong);
  border-radius: 14px; box-shadow: var(--shadow); z-index: 30;
}
.menu-name { padding: 8px 10px 10px; font-size: 13px; color: var(--muted); border-bottom: 1px solid var(--line); text-transform: none; }
.menu-item { display: flex; align-items: center; gap: 9px; width: 100%; padding: 9px 10px; border-radius: 9px; font-size: 13.5px; color: var(--text); }
.menu-item:hover { background: rgba(255, 255, 255, 0.06); }
.menu-item svg { width: 17px; height: 17px; }

.stage { display: grid; grid-template-rows: 44px 52px minmax(0, 1fr); min-width: 0; }

.tabstrip {
  display: flex; align-items: center; gap: 6px; padding: 0 12px;
  border-bottom: 1px solid var(--line); background: rgba(9, 9, 15, 0.55);
}
.tabs { display: flex; gap: 4px; overflow-x: auto; scrollbar-width: none; max-width: 60%; }
.tabs::-webkit-scrollbar { display: none; }
.tab {
  display: flex; align-items: center; gap: 8px; max-width: 200px; padding: 6px 10px;
  border-radius: 9px; font-size: 12.5px; color: var(--muted); white-space: nowrap;
}
.tab:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); }
.tab.on { background: rgba(255, 255, 255, 0.09); color: #fff; }
.tab-title { overflow: hidden; text-overflow: ellipsis; max-width: 150px; }
.tab-close { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 6px; color: var(--dim); opacity: 0; }
.tab:hover .tab-close, .tab.on .tab-close { opacity: 1; }
.tab-close:hover { background: rgba(255, 255, 255, 0.12); color: #fff; }
.tab-close svg { width: 13px; height: 13px; }
.tab-new { width: 28px; height: 28px; border-radius: 8px; display: grid; place-items: center; color: var(--muted); }
.tab-new:hover { background: rgba(255, 255, 255, 0.06); color: #fff; }
.strip-spacer { flex: 1; }
.ghost {
  display: flex; align-items: center; gap: 7px; padding: 6px 11px; border-radius: 9px;
  font-size: 12.5px; color: var(--muted); border: 1px solid transparent;
}
.ghost:hover { color: var(--text); border-color: var(--line-strong); background: rgba(255, 255, 255, 0.04); }
.ghost svg { width: 15px; height: 15px; }

.omnibar {
  display: flex; align-items: center; gap: 8px; padding: 9px 14px;
  border-bottom: 1px solid var(--line);
}
.nav { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; color: var(--muted); }
.nav:hover:not(:disabled) { background: rgba(255, 255, 255, 0.07); color: #fff; }
.nav:disabled { opacity: 0.3; cursor: default; }
.nav svg { width: 17px; height: 17px; }

.urlbar {
  flex: 1; display: flex; align-items: center; gap: 9px; padding: 0 12px;
  height: 34px; border-radius: 10px; background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line); transition: border-color 0.16s, box-shadow 0.16s;
}
.urlbar:focus-within { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.urlbar input { flex: 1; background: none; border: 0; outline: none; font-size: 13.5px; }
.urlbar input::placeholder { color: var(--dim); }
.url-icon { width: 14px; height: 14px; color: var(--dim); flex: none; }

.viewport { position: relative; min-height: 0; overflow: hidden; background: radial-gradient(circle at 50% 0%, rgba(139, 124, 255, 0.07), transparent 60%); }
.frame { width: 100%; height: 100%; border: 0; background: #fff; display: block; }

.embed-notice {
  position: absolute; left: 50%; bottom: 16px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 14px; padding: 9px 10px 9px 16px;
  border-radius: 14px; background: rgba(18, 18, 26, 0.94);
  border: 1px solid var(--line-strong); box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
  font-size: 12.5px; color: var(--muted); z-index: 6; max-width: calc(100% - 32px);
}
.embed-notice .embed-actions { display: flex; align-items: center; gap: 6px; }
.embed-notice .icon-btn { width: 26px; height: 26px; }
.embed-notice .icon-btn svg { width: 14px; height: 14px; }

.app-panel { position: absolute; inset: 0; display: grid; place-items: center; padding: 30px; overflow-y: auto; }
.app-panel-card { width: min(560px, 100%); text-align: center; }
.app-panel-icon {
  width: 54px; height: 54px; margin: 0 auto 16px; border-radius: 16px;
  display: grid; place-items: center; font-size: 22px; font-weight: 700; color: #0a0a12;
  background: linear-gradient(140deg, var(--accent), var(--accent-2));
}
.app-panel-card h3 { margin: 0 0 8px; font-size: 22px; letter-spacing: -0.02em; }
.app-panel-card p { margin: 0 auto 20px; max-width: 44ch; color: var(--muted); font-size: 13.5px; line-height: 1.6; }
.hero-search.compact { max-width: 460px; margin: 0 auto 16px; }
.hero-search.compact input { font-size: 13.5px; }
.app-panel-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; }

/* ---------- YouTube ---------- */

.yt { position: absolute; inset: 0; overflow-y: auto; padding: 22px min(5vw, 48px) 40px; }
.yt-head { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-bottom: 14px; }
.yt-brand {
  display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 17px;
  letter-spacing: -0.01em;
}
.yt-play {
  width: 30px; height: 21px; border-radius: 6px; display: grid; place-items: center;
  font-size: 10px; color: #fff; background: #ff2f45;
}
.hero-search.yt-search { flex: 1; min-width: 220px; max-width: 520px; margin: 0; }
.yt-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 18px; }
.yt-chip {
  padding: 6px 12px; border-radius: 999px; font-size: 12.5px; color: var(--muted);
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line);
}
.yt-chip:hover { color: var(--text); border-color: var(--line-strong); background: rgba(255, 255, 255, 0.08); }
.yt-status, .yt-empty { margin: 26px 0 0; color: var(--muted); font-size: 13.5px; }
.yt-empty { max-width: 52ch; line-height: 1.6; }
.yt-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 16px; }
.yt-card { text-align: left; display: flex; flex-direction: column; gap: 9px; min-width: 0; }
.yt-thumb {
  position: relative; display: block; aspect-ratio: 16 / 9; border-radius: 12px; overflow: hidden;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line);
}
.yt-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.yt-thumb.no-thumb { background: linear-gradient(140deg, rgba(139, 124, 255, 0.28), rgba(62, 224, 200, 0.16)); }
.yt-len {
  position: absolute; right: 6px; bottom: 6px; padding: 1px 5px; border-radius: 5px;
  font-size: 11px; font-weight: 600; color: #fff; background: rgba(0, 0, 0, 0.82);
}
.yt-len.live { background: #ff2f45; letter-spacing: 0.04em; }
.yt-info { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.yt-title {
  font-size: 13.5px; font-weight: 600; line-height: 1.35; color: var(--text);
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.yt-card:hover .yt-title { color: var(--accent); }
.yt-meta {
  font-size: 12px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.start { position: absolute; inset: 0; overflow-y: auto; padding: 44px min(7vw, 76px); }
.eyebrow { margin: 0 0 8px; font-size: 11px; letter-spacing: 0.28em; color: var(--dim); }
.start-title { margin: 0 0 22px; font-size: clamp(26px, 3.4vw, 38px); letter-spacing: -0.03em; font-weight: 650; }
.start-title span { background: linear-gradient(100deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero-search {
  display: flex; align-items: center; gap: 10px; max-width: 640px; padding: 6px 6px 6px 16px;
  border-radius: 16px; background: var(--panel); border: 1px solid var(--line-strong);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}
.hero-search svg { width: 17px; height: 17px; color: var(--muted); flex: none; }
.hero-search input { flex: 1; background: none; border: 0; outline: none; padding: 10px 0; font-size: 15px; }
.hero-search button {
  padding: 9px 18px; border-radius: 11px; font-size: 13.5px; font-weight: 600; color: #0a0a12;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
}

.quick-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; max-width: 760px; margin: 26px 0 34px; }
.quick {
  display: flex; align-items: center; gap: 10px; padding: 12px; border-radius: 14px;
  background: rgba(255, 255, 255, 0.035); border: 1px solid var(--line); transition: 0.16s;
  text-align: left;
}
.quick:hover { transform: translateY(-2px); border-color: var(--line-strong); background: rgba(255, 255, 255, 0.06); }
.quick .tile {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  font-size: 13px; font-weight: 700; color: #0a0a12; background: linear-gradient(140deg, var(--accent), var(--accent-2));
  flex: none;
}
.quick span { font-size: 12.5px; color: #d6d6e4; overflow: hidden; text-overflow: ellipsis; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; max-width: 760px; }
.mini-card { padding: 16px 18px; border-radius: 16px; background: rgba(255, 255, 255, 0.028); border: 1px solid var(--line); }
.mini-card h3 { margin: 0 0 6px; font-size: 13.5px; }
.mini-card p { margin: 0; font-size: 12.5px; color: var(--muted); line-height: 1.6; }

.frame-error {
  position: absolute; inset: 0; display: grid; place-content: center; gap: 8px; text-align: center;
  padding: 30px; background: var(--bg);
}
.frame-error h3 { margin: 0; font-size: 18px; }
.frame-error p { margin: 0 0 10px; color: var(--muted); font-size: 14px; }

/* ---------- dock ---------- */

.dock {
  display: flex; flex-direction: column; min-width: 0;
  border-left: 1px solid var(--line); background: rgba(10, 10, 16, 0.72);
  backdrop-filter: blur(20px);
}
.dock-tabs { display: flex; align-items: center; gap: 4px; padding: 9px 10px; border-bottom: 1px solid var(--line); }
.dock-tab { padding: 7px 12px; border-radius: 9px; font-size: 12.5px; color: var(--muted); }
.dock-tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.dock-tab.on { background: rgba(255, 255, 255, 0.09); color: #fff; }
.dock-close { margin-left: auto; width: 26px; height: 26px; display: grid; place-items: center; border-radius: 8px; color: var(--dim); }
.dock-close:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.dock-close svg { width: 15px; height: 15px; }
.dock-panel { display: flex; flex-direction: column; min-height: 0; flex: 1; }

.presence { padding: 12px 14px 10px; border-bottom: 1px solid var(--line); }
.live { display: inline-flex; align-items: center; gap: 7px; font-size: 11px; letter-spacing: 0.16em; color: var(--muted); text-transform: uppercase; }
.live i { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); animation: pulse 2.4s infinite; }
@keyframes pulse { 50% { opacity: 0.35; } }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; }
.chip {
  padding: 4px 9px; border-radius: 999px; font-size: 11.5px; color: #cfcfe0;
  background: rgba(255, 255, 255, 0.05); border: 1px solid var(--line);
}
.chip.you { border-color: var(--accent); color: var(--accent); }

.messages { flex: 1; min-height: 0; overflow-y: auto; padding: 14px; display: flex; flex-direction: column; gap: 10px; scrollbar-width: thin; }
.messages::-webkit-scrollbar { width: 6px; }
.messages::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.12); border-radius: 99px; }

.msg { max-width: 88%; }
.msg .who { font-size: 11px; color: var(--dim); margin: 0 0 3px 2px; display: flex; gap: 6px; align-items: baseline; }
.msg .who time { font-size: 10px; color: #565668; }
.msg p { margin: 0; padding: 9px 12px; border-radius: 13px; background: rgba(255, 255, 255, 0.05); font-size: 13.5px; overflow-wrap: anywhere; }
.msg.you { align-self: flex-end; }
.msg.you .who { justify-content: flex-end; }
.msg.you p { background: linear-gradient(135deg, var(--accent-soft), rgba(62, 224, 200, 0.12)); border: 1px solid rgba(139, 124, 255, 0.28); }
.msg.system { max-width: 100%; }
.msg.system p { background: none; color: var(--dim); font-size: 12px; padding: 0; }
.msg.ai p { background: rgba(255, 255, 255, 0.04); border: 1px solid var(--line); }

.composer { display: flex; gap: 8px; padding: 10px 12px 6px; border-top: 1px solid var(--line); }
.composer input {
  flex: 1; padding: 10px 13px; border-radius: 11px; background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line); outline: none; font-size: 13.5px;
}
.composer input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.send { width: 38px; display: grid; place-items: center; border-radius: 11px; color: #0a0a12; background: linear-gradient(140deg, var(--accent), var(--accent-2)); }
.send svg { width: 17px; height: 17px; }
.dock-note { margin: 0; padding: 0 14px 12px; font-size: 11px; color: var(--dim); }

.ai-head { display: flex; gap: 11px; align-items: center; padding: 14px; border-bottom: 1px solid var(--line); }
.ai-orb {
  width: 36px; height: 36px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(140deg, var(--accent), var(--accent-2)); color: #08080e; font-size: 17px;
}
.ai-head b { display: block; font-size: 13.5px; }
.ai-head span { font-size: 11.5px; color: var(--dim); }
.ai-messages .msg { max-width: 96%; }

/* ---------- settings ---------- */

.sheet {
  width: min(520px, calc(100vw - 32px)); max-height: 84vh; padding: 0;
  border-radius: 22px; border: 1px solid var(--line-strong); background: var(--panel-solid);
  color: var(--text); box-shadow: var(--shadow);
}
.sheet::backdrop { background: rgba(4, 4, 8, 0.7); backdrop-filter: blur(6px); }
.sheet-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px; border-bottom: 1px solid var(--line); margin: 0; }
.sheet-head h2 { margin: 0; font-size: 17px; }
.icon-btn { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; color: var(--muted); }
.icon-btn:hover { background: rgba(255, 255, 255, 0.07); color: #fff; }
.sheet-body { padding: 8px 20px 22px; overflow-y: auto; max-height: calc(84vh - 70px); }
.setting { padding: 16px 0; border-bottom: 1px solid var(--line); }
.setting:last-child { border-bottom: 0; }
.setting h3 { margin: 0 0 10px; font-size: 11px; letter-spacing: 0.2em; color: var(--dim); text-transform: uppercase; }
.row { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 10px; font-size: 13.5px; color: #d2d2e0; }
.row:last-child { margin-bottom: 0; }
.row select, .row input[type='text'], .row input:not([type]) {
  padding: 8px 10px; border-radius: 9px; background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line-strong); outline: none; min-width: 150px; font-size: 13px;
}
.row input[type='checkbox'] { width: 16px; height: 16px; accent-color: var(--accent); }
.swatches { display: flex; gap: 8px; }
.sw { width: 26px; height: 26px; border-radius: 9px; background: var(--s); border: 2px solid transparent; box-shadow: 0 0 0 1px var(--line); }
.sw.on { border-color: #fff; box-shadow: 0 0 0 3px var(--accent-soft); }

/* ---------- toasts ---------- */

.toasts { position: fixed; right: 18px; bottom: 18px; z-index: 60; display: flex; flex-direction: column; gap: 8px; }
.toast {
  padding: 11px 15px; border-radius: 12px; font-size: 13px; color: var(--text);
  background: rgba(24, 24, 34, 0.96); border: 1px solid var(--line-strong);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.5); animation: toast-in 0.2s ease-out;
}
.toast.bad { border-color: rgba(255, 122, 138, 0.5); }
@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } }

/* ---------- responsive ---------- */

@media (max-width: 1080px) {
  .app { grid-template-columns: 60px minmax(0, 1fr) 300px; }
}

@media (max-width: 900px) {
  /* The dock parks off-screen to the right on phones; without this the whole
     page Pans sideways by its width. And 100dvh keeps the composer above the
     iOS/Android browser chrome instead of under it. */
  html, body { overflow-x: hidden; }
  .auth { grid-template-columns: 1fr; gap: 34px; padding: 40px 22px; align-items: start; }
  .feature-list { display: none; }
  .app { grid-template-columns: 56px minmax(0, 1fr); }
  .dock {
    position: fixed; right: 0; top: 0; bottom: 0; width: min(340px, 88vw); z-index: 40;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5); transform: translateX(100%); transition: transform 0.22s;
  }
  .app.dock-open .dock { transform: none; }
  .app.dock-hidden { grid-template-columns: 56px minmax(0, 1fr); }
  .app.dock-hidden .dock { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  /* The bar's fill is an animation, so it would sit empty for the whole
     cover. With motion off, show it complete and let the copy carry the
     message. */
  .splash-bar i { transform: scaleX(1); }
}

/* ---------- study cover (first five seconds of a page load) ----------
   A self-contained light theme on purpose: it reads as a different app from
   the dark browser behind it. Presentational only — the app boots underneath
   and keeps working whenever this element is removed. */

.splash {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 22px;
  padding: 24px clamp(18px, 5vw, 52px) 20px;
  background: #f5f6fa;
  color: #1b2233;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  overflow: auto;
  transition: opacity 0.4s ease;
}
.splash.is-out { opacity: 0; pointer-events: none; }

.splash-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 14px; font-size: 12.5px; color: #667085;
}
.splash-logo {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 15px; font-weight: 700; letter-spacing: -0.01em; color: #1b2233;
}
.splash-logo i {
  display: grid; place-items: center; width: 26px; height: 26px; border-radius: 8px;
  background: #1f6feb; color: #fff; font-style: normal; font-size: 15px;
}
.splash-term {
  padding: 4px 11px; border: 1px solid #e2e6ef; border-radius: 999px; background: #fff;
}

.splash-card {
  align-self: center; width: min(520px, 100%); padding: clamp(22px, 4vw, 32px);
  background: #fff; border: 1px solid #e7eaf2; border-radius: 16px;
  box-shadow: 0 18px 44px rgba(24, 34, 61, 0.08);
}
.splash-kicker {
  margin: 0 0 10px; font-size: 11px; font-weight: 700; letter-spacing: 0.14em; color: #8792a8;
}
.splash-card h1 { margin: 0; font-size: clamp(20px, 3.4vw, 25px); letter-spacing: -0.02em; }
.splash-sub { margin: 8px 0 18px; font-size: 13.5px; color: #5d6a80; }

.splash-bar { height: 6px; border-radius: 999px; background: #edf0f6; overflow: hidden; }
.splash-bar i {
  display: block; height: 100%; border-radius: inherit; transform-origin: left;
  background: linear-gradient(90deg, #1f6feb, #4f9dff);
  animation: splash-fill 5s linear forwards;
}
@keyframes splash-fill { from { transform: scaleX(0.03); } to { transform: scaleX(1); } }

.splash-list { display: grid; gap: 9px; margin: 20px 0 0; padding: 0; list-style: none; }
.splash-list li {
  display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px;
  border-radius: 10px; background: #f7f9fc; font-size: 13px;
}
.splash-list b { font-weight: 600; }
.splash-list span { color: #7b879c; }

.splash-foot { margin: 0; text-align: center; font-size: 11.5px; color: #99a2b5; }

@media (max-width: 520px) {
  .splash { padding: 18px 16px 16px; }
  .splash-term { display: none; }
}