:root {
  --bg: #0d1117;
  --bg-raised: #151b23;
  --bg-sunken: #0a0d12;
  --line: #262e39;
  --line-strong: #364152;
  --text: #e6edf3;
  --text-dim: #9aa6b2;
  --text-faint: #6b7785;
  --accent: #5eead4;
  --accent-ink: #062b26;
  --warn: #f59e0b;
  --bad: #f87171;
  --good: #4ade80;
  --radius: 10px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; background: var(--bg); color: var(--text); font: 15px/1.5 var(--sans); }
body { -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 14px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }
p { margin: 0; }
.dim { color: var(--text-dim); }
.faint { color: var(--text-faint); }
.mono { font-family: var(--mono); font-size: 13px; }
.hidden { display: none !important; }

/* ---------- controls ---------- */
button, .btn {
  appearance: none; border: 1px solid var(--line-strong); background: var(--bg-raised); color: var(--text);
  font: 500 14px/1 var(--sans); padding: 9px 14px; border-radius: 8px; cursor: pointer;
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; white-space: nowrap;
}
button:hover, .btn:hover { border-color: var(--text-faint); }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
button.primary:hover { filter: brightness(1.08); }
button.danger { color: var(--bad); }
button.ghost { background: transparent; border-color: transparent; }
button.ghost:hover { background: var(--bg-raised); border-color: var(--line); }
button:disabled { opacity: 0.5; cursor: default; }
button.small { padding: 6px 10px; font-size: 13px; }

label { display: grid; gap: 6px; font-size: 13px; color: var(--text-dim); }
input, select, textarea {
  font: 15px var(--sans); color: var(--text); background: var(--bg-sunken); border: 1px solid var(--line-strong);
  border-radius: 8px; padding: 10px 12px; width: 100%;
}
textarea { font-family: var(--mono); font-size: 13px; min-height: 140px; resize: vertical; }
input.code { font-family: var(--mono); letter-spacing: 0.2em; font-size: 20px; text-align: center; }
.check { display: flex; align-items: center; gap: 10px; color: var(--text); font-size: 14px; }
.check input { width: auto; }

/* ---------- layout ---------- */
.page { max-width: 1080px; margin: 0 auto; padding: 28px 20px 60px; }
.topbar { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.topbar .spacer { flex: 1; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; }
.brand img { width: 26px; height: 26px; }

.card { background: var(--bg-raised); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.stack { display: grid; gap: 14px; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 600px) { .grid2 { grid-template-columns: 1fr; } }

.center-wrap { min-height: 100%; display: grid; place-items: center; padding: 24px 16px; }
.auth-card { width: min(420px, 100%); }
.auth-card .brand { margin-bottom: 18px; }
.steps { display: flex; gap: 6px; margin-bottom: 16px; }
.steps span { height: 3px; flex: 1; border-radius: 2px; background: var(--line); }
.steps span.on { background: var(--accent); }

.error { color: var(--bad); font-size: 14px; }
.note { background: var(--bg-sunken); border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; font-size: 14px; color: var(--text-dim); }
.note.warn { border-color: #5c4413; color: #f5d08a; }
.codes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 6px 18px; font-family: var(--mono); font-size: 15px; padding: 14px; background: var(--bg-sunken); border-radius: 8px; }
.qr { width: 200px; height: 200px; border-radius: 8px; background: #fff; padding: 6px; image-rendering: pixelated; }

/* ---------- device grid ---------- */
.devices { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.device { padding: 0; overflow: hidden; display: flex; flex-direction: column; cursor: pointer; transition: border-color .15s; }
.device:hover { border-color: var(--line-strong); }
.device .thumb { aspect-ratio: 16 / 9; background: var(--bg-sunken); display: grid; place-items: center; color: var(--text-faint); font-size: 13px; position: relative; }
.device .thumb img { width: 100%; height: 100%; object-fit: contain; display: block; }
.device .body { padding: 14px 16px; display: grid; gap: 4px; }
.device .name { display: flex; align-items: center; gap: 8px; font-weight: 600; }
.device.add { border-style: dashed; align-items: center; justify-content: center; min-height: 240px; color: var(--text-dim); gap: 8px; }
.device.add .plus { font-size: 28px; line-height: 1; color: var(--accent); }

.pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 500; padding: 2px 8px; border-radius: 99px; border: 1px solid var(--line); color: var(--text-dim); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--text-faint); flex: none; }
.dot.online { background: var(--good); box-shadow: 0 0 0 3px rgba(74, 222, 128, .15); }
.dot.checking { background: var(--text-faint); }
.dot.unreachable, .dot.tls_mismatch { background: var(--bad); }
.dot.api_disabled, .dot.auth_failed { background: var(--warn); }

/* ---------- modal ---------- */
dialog { border: 1px solid var(--line-strong); background: var(--bg-raised); color: var(--text); border-radius: 12px; padding: 22px; width: min(460px, calc(100% - 32px)); }
dialog::backdrop { background: rgba(0, 0, 0, .6); }
dialog .actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; }

/* ---------- remote session ---------- */
.session { position: fixed; inset: 0; background: #000; display: flex; flex-direction: column; }
.session .bar {
  display: flex; align-items: center; gap: 6px; padding: 6px 10px; background: rgba(13, 17, 23, .92);
  border-bottom: 1px solid var(--line); z-index: 3; min-height: 46px; overflow-x: auto;
}
.session .bar .title { font-weight: 600; display: flex; align-items: center; gap: 8px; margin: 0 8px 0 2px; white-space: nowrap; }
.session .bar .spacer { flex: 1; }
.session .bar .stats { font-family: var(--mono); font-size: 12px; color: var(--text-faint); white-space: nowrap; }
.session .bar button { padding: 7px 10px; font-size: 13px; }
.session .bar button.on { border-color: var(--accent); color: var(--accent); }
.session.fullscreen .bar { position: absolute; top: 0; left: 0; right: 0; transform: translateY(-100%); transition: transform .2s; }
.session.fullscreen .bar.peek { transform: none; }
.session .stage { position: relative; flex: 1; display: grid; place-items: center; overflow: hidden; outline: none; }
.session video, .session .stage img.fallback { width: 100%; height: 100%; object-fit: contain; display: block; background: #000; }
.session .stage.captured { cursor: none; }
.session .stage.captured.show-cursor { cursor: default; }
.session .overlay {
  position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; z-index: 2;
}
.session .overlay .msg { background: rgba(13, 17, 23, .9); border: 1px solid var(--line); border-radius: 10px; padding: 14px 18px; max-width: 480px; text-align: center; pointer-events: auto; display: grid; gap: 10px; }
.session .hint { position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%); background: rgba(13, 17, 23, .85); border: 1px solid var(--line); border-radius: 99px; padding: 6px 14px; font-size: 13px; color: var(--text-dim); z-index: 2; pointer-events: none; transition: opacity .3s; }

.menu { position: relative; }
.items {
  position: fixed; min-width: 220px; background: var(--bg-raised); border: 1px solid var(--line-strong); border-radius: 10px;
  padding: 6px; display: grid; gap: 2px; z-index: 10; box-shadow: 0 12px 30px rgba(0, 0, 0, .45);
}
.items button { justify-content: space-between; border: 0; background: transparent; width: 100%; padding: 9px 10px; }
.items button:hover { background: var(--bg-sunken); }
.items .sep { height: 1px; background: var(--line); margin: 4px 2px; }
.items .label { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .06em; padding: 6px 10px 2px; }
kbd { font-family: var(--mono); font-size: 11px; color: var(--text-faint); }

/* ---------- settings ---------- */
.settings { display: grid; gap: 18px; }
.list { display: grid; }
.list .item { display: flex; align-items: center; gap: 12px; padding: 12px 0; border-top: 1px solid var(--line); }
.list .item:first-child { border-top: 0; }
.list .item .grow { flex: 1; min-width: 0; }
.list .item .grow > * { overflow: hidden; text-overflow: ellipsis; }
.section-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
table.log { width: 100%; border-collapse: collapse; font-size: 13px; }
table.log td { padding: 6px 8px 6px 0; border-top: 1px solid var(--line); vertical-align: top; }
table.log td:first-child { white-space: nowrap; color: var(--text-faint); font-family: var(--mono); font-size: 12px; }

#toasts { position: fixed; bottom: 18px; right: 18px; display: grid; gap: 8px; z-index: 50; }
.toast { background: var(--bg-raised); border: 1px solid var(--line-strong); border-radius: 10px; padding: 10px 14px; font-size: 14px; max-width: 360px; box-shadow: 0 10px 30px rgba(0, 0, 0, .4); }
.toast.bad { border-color: #7f2d2d; }