/* Muxbot Studio — dark-first, light theme follows the OS / Telegram. */
:root {
  --bg: #0b0d12;
  --surface: #12151d;
  --surface-2: #181c26;
  --field: #0e1118;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #e8eaf0;
  --muted: #8a92a6;
  --accent: #8b5cf6;
  --accent-2: #22d3ee;
  --accent-text: #ffffff;
  --grad: linear-gradient(135deg, #8b5cf6 0%, #6366f1 50%, #22d3ee 100%);
  --ok: #34d399;
  --warn: #fbbf24;
  --error: #f87171;
  --shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 10px 30px -12px rgba(0, 0, 0, 0.6);
  --glow: 0 8px 24px -8px rgba(139, 92, 246, 0.55);
  --radius: 16px;
  --radius-sm: 10px;
  --mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f5f6fb;
    --surface: #ffffff;
    --surface-2: #f1f3f9;
    --field: #f7f8fc;
    --line: rgba(15, 23, 42, 0.08);
    --line-strong: rgba(15, 23, 42, 0.16);
    --text: #0f172a;
    --muted: #64748b;
    --accent: #7c3aed;
    --accent-2: #0891b2;
    --grad: linear-gradient(135deg, #7c3aed 0%, #4f46e5 50%, #0891b2 100%);
    --ok: #059669;
    --warn: #b45309;
    --error: #dc2626;
    --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px -14px rgba(15, 23, 42, 0.25);
    --glow: 0 8px 22px -10px rgba(124, 58, 237, 0.55);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }   /* display rules below must not un-hide elements */
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(900px 500px at 10% -10%, rgba(139, 92, 246, 0.14), transparent 60%),
    radial-gradient(800px 500px at 100% 0%, rgba(34, 211, 238, 0.09), transparent 60%),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  font: 15px/1.5 Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
main { max-width: 980px; margin: 0 auto; padding: 18px 16px 64px; }
h1 { font-size: 1.6rem; letter-spacing: -0.02em; margin: 12px 0 6px; }
h2 { font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; margin: 0 0 12px; }
h3 { font-size: 0.95rem; font-weight: 600; margin: 0 0 12px; }
code { font-family: var(--mono); font-size: 0.88em; background: var(--surface-2); padding: 1px 6px; border-radius: 6px; }
a { color: var(--accent-2); }
::selection { background: rgba(139, 92, 246, 0.35); }

/* ── header ──────────────────────────────────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 10px max(16px, calc((100vw - 980px) / 2 + 16px));
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.01em; }
.brand-name em { font-style: normal; font-weight: 500; color: var(--muted); }
.logo {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 9px;
  background: var(--grad); color: #fff; box-shadow: var(--glow);
}
.logo.big { width: 56px; height: 56px; border-radius: 16px; }
.tabs {
  display: flex; gap: 2px; padding: 3px; margin-left: auto;
  background: var(--surface); border: 1px solid var(--line); border-radius: 12px;
}
.tabs button {
  border: 0; background: transparent; color: var(--muted); font-weight: 500;
  padding: 6px 14px; border-radius: 9px; box-shadow: none;
}
.tabs button:hover { color: var(--text); background: var(--surface-2); transform: none; }
.tabs button.on { background: var(--grad); color: #fff; box-shadow: var(--glow); }

/* ── cards ───────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin: 14px 0;
  box-shadow: var(--shadow);
}
.card-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.card-head h2 { margin: 0; }
.eyebrow { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 2px; }
.task-head { background: linear-gradient(var(--surface), var(--surface)) padding-box, var(--grad) border-box; border: 1px solid transparent; }
.task-head h2 { font-size: 1.2rem; margin: 0; }
.hero { max-width: 460px; margin: 10vh auto; text-align: center; padding: 34px 26px; }
.hero .muted { font-size: 0.92rem; margin-bottom: 18px; }
#widget { display: flex; justify-content: center; min-height: 40px; }

/* ── layout helpers ──────────────────────────────────────────────────── */
.row { display: flex; gap: 8px; align-items: center; margin-top: 10px; }
.row.wrap { flex-wrap: wrap; }
.row.spread { justify-content: space-between; margin-top: 0; }
.stack { display: grid; gap: 12px; }
.muted { color: var(--muted); font-size: 0.86rem; }
.error { color: var(--error); font-size: 0.88rem; min-height: 1em; margin: 8px 0 0; }

/* ── form controls ───────────────────────────────────────────────────── */
label { display: inline-flex; flex-direction: column; gap: 6px; font-size: 0.8rem; font-weight: 500; color: var(--muted); }
#option-fields { display: grid; gap: 14px; margin-bottom: 14px; }
#option-fields > label, #settings-form > label:not(.check) { display: flex; }
input, select, button, textarea {
  font: inherit; color: var(--text);
  background: var(--field); border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm); padding: 9px 12px;
  transition: border-color .15s, box-shadow .15s, background .15s, transform .15s, opacity .15s;
}
input::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.28);
}
input[type="url"] { flex: 1 1 280px; min-width: 0; }
select { cursor: pointer; }

button { cursor: pointer; background: var(--surface-2); font-weight: 500; }
button:hover { border-color: var(--line-strong); background: color-mix(in srgb, var(--surface-2) 70%, var(--text) 6%); }
button:active { transform: translateY(1px); }
button.primary { background: var(--grad); color: var(--accent-text); border-color: transparent; box-shadow: var(--glow); font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button.ghost { background: transparent; }
button.danger { color: var(--error); background: transparent; border-color: color-mix(in srgb, var(--error) 40%, transparent); }
button.danger:hover { background: color-mix(in srgb, var(--error) 12%, transparent); }
button.link { border: 0; background: none; color: var(--accent-2); padding: 4px 6px; box-shadow: none; }
button.link:hover { text-decoration: underline; background: none; }
button.small { padding: 6px 10px; font-size: 0.85rem; }
button:disabled { opacity: 0.45; cursor: default; transform: none; }
#run { width: 100%; padding: 12px; font-size: 1rem; }

/* switches for every checkbox */
label.check { flex-direction: row; align-items: center; gap: 10px; color: var(--text); font-size: 0.92rem; font-weight: 400; cursor: pointer; }
input[type="checkbox"] {
  appearance: none; -webkit-appearance: none; flex: none;
  width: 36px; height: 20px; padding: 0; border-radius: 999px; position: relative; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--line-strong);
}
input[type="checkbox"]::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 14px; height: 14px; border-radius: 50%;
  background: var(--muted); transition: transform .18s ease, background .18s;
}
input[type="checkbox"]:checked { background: var(--grad); border-color: transparent; }
input[type="checkbox"]:checked::after { transform: translateX(16px); background: #fff; }
input[type="checkbox"]:disabled { opacity: .5; }

input[type="range"] { width: 100%; padding: 0; border: 0; background: transparent; accent-color: var(--accent); margin: 10px 0 4px; }

/* ── pills ───────────────────────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  font-size: 0.75rem; font-weight: 600; text-transform: capitalize;
  padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-strong); color: var(--muted);
}
.pill::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.pill.running, .pill.collecting { color: var(--accent-2); border-color: color-mix(in srgb, var(--accent-2) 35%, transparent); }
.pill.running::before { animation: pulse 1.4s ease-in-out infinite; }
.pill.done { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 35%, transparent); }
.pill.failed, .pill.cancelled { color: var(--error); border-color: color-mix(in srgb, var(--error) 35%, transparent); }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

/* ── operation tiles ─────────────────────────────────────────────────── */
.op-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.op-tile {
  display: flex; align-items: center; gap: 12px; text-align: left; padding: 14px;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 14px;
}
.op-tile:hover { border-color: color-mix(in srgb, var(--accent) 55%, transparent); transform: translateY(-1px); background: var(--surface-2); }
.op-tile .op-icon {
  flex: none; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-size: 1.05rem;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
}
.op-tile .op-label { font-size: 0.9rem; font-weight: 500; line-height: 1.3; }

/* ── files / slots ───────────────────────────────────────────────────── */
.item-head { margin: 18px 0 6px; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.slot {
  border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 12px;
  padding: 12px 14px; margin-top: 8px; background: var(--surface-2);
}
.slot.reference { border-left-color: var(--accent-2); margin-left: 14px; }
.slot.row { margin-top: 8px; }
.slot .name { font-weight: 600; word-break: break-all; }
.slot .meta { font-size: 0.78rem; color: var(--muted); margin-top: 2px; }
.slot details { margin-top: 8px; }
.slot summary { cursor: pointer; }
.slot details pre { margin: 8px 0 0; }
.tracks { display: grid; gap: 8px; margin: 10px 0 4px; }
#slots:empty::before { content: ""; }

/* ── progress ────────────────────────────────────────────────────────── */
.progress-now { margin: 14px 0 4px; display: grid; gap: 6px; padding: 12px 14px; border-radius: 12px; background: var(--surface-2); border: 1px solid var(--line); }
.progress-now .name { font-weight: 600; font-size: 0.92rem; }
progress {
  -webkit-appearance: none; appearance: none; width: 100%; height: 8px; border: 0; border-radius: 999px;
  background: var(--field); overflow: hidden;
}
progress::-webkit-progress-bar { background: var(--field); border-radius: 999px; }
progress::-webkit-progress-value {
  border-radius: 999px;
  background: var(--grad), repeating-linear-gradient(45deg, rgba(255,255,255,.15) 0 8px, transparent 8px 16px);
  background-blend-mode: overlay;
  transition: width .4s ease;
}
progress::-moz-progress-bar { border-radius: 999px; background: var(--grad); }
.log .entry progress { height: 4px; margin-top: 6px; display: block; }

/* ── log (terminal) ──────────────────────────────────────────────────── */
.log {
  white-space: pre-wrap; word-break: break-word; font: 12.5px/1.55 var(--mono);
  background: color-mix(in srgb, var(--bg) 85%, #000 15%); color: color-mix(in srgb, var(--text) 88%, var(--muted));
  border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; max-height: 440px; overflow: auto; margin: 0;
}
.log .entry + .entry { border-top: 1px dashed var(--line); margin-top: 8px; padding-top: 8px; }
.log a { color: var(--accent-2); }
pre.log { margin: 10px 0; }

/* ── files gallery ───────────────────────────────────────────────────── */
.files { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px; margin-top: 12px; }
.files:empty { display: none; }
.files figure { margin: 0; border-radius: 12px; overflow: hidden; background: var(--surface-2); border: 1px solid var(--line); }
.files img, .files video { width: 100%; display: block; aspect-ratio: 16 / 9; object-fit: cover; background: #000; transition: transform .25s; }
.files a:hover img { transform: scale(1.03); }
.files figcaption { font-size: 0.74rem; color: var(--muted); padding: 8px 10px; word-break: break-all; }

/* ── sync preview ────────────────────────────────────────────────────── */
video { width: 100%; max-height: 60vh; background: #000; border-radius: 12px; margin: 12px 0 4px; display: block; }
#pv-wave {
  width: 100%; height: 120px; display: block; border-radius: 12px; margin: 10px 0 4px;
  background: color-mix(in srgb, var(--bg) 85%, #000 15%); border: 1px solid var(--line);
  cursor: ew-resize; touch-action: none;
}
.nudges { gap: 6px; }
.nudges button { min-width: 60px; padding: 6px 10px; font-family: var(--mono); font-size: 0.82rem; }

/* ── drag-and-drop order ─────────────────────────────────────────────── */
.order { display: grid; gap: 6px; margin: 8px 0; }
.order-row {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px; background: var(--surface-2);
}
.order-row.dragging { opacity: 0.5; }
.order-row.drop-before { box-shadow: 0 -3px 0 var(--accent); }
.order-row.drop-after { box-shadow: 0 3px 0 var(--accent); }
.order-label { flex: 1 1 200px; min-width: 0; word-break: break-word; font-size: 0.9rem; }
.handle { cursor: grab; touch-action: none; font-size: 1.1rem; padding: 4px 10px; background: transparent; }
.handle:active { cursor: grabbing; }

/* ── system tiles ────────────────────────────────────────────────────── */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; }
.stat { padding: 14px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line); display: grid; gap: 6px; }
.stat .label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.stat .value { font-size: 1.35rem; font-weight: 700; letter-spacing: -0.02em; }
.stat .sub { font-size: 0.8rem; color: var(--muted); }

/* ── settings ────────────────────────────────────────────────────────── */
#settings-form { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); column-gap: 18px; }
#settings-form h3 { grid-column: 1 / -1; margin: 14px 0 0; padding-top: 14px; border-top: 1px solid var(--line); }
#settings-form h3:first-child { border-top: 0; padding-top: 0; margin-top: 0; }
#settings-form button { grid-column: 1 / -1; justify-self: start; margin-top: 8px; }

/* ── small screens / Telegram Mini App ───────────────────────────────── */
@media (max-width: 640px) {
  main { padding: 10px 12px 48px; }
  .top { gap: 10px; padding: 8px 12px; }
  .tabs { order: 3; width: 100%; margin-left: 0; }
  .tabs button { flex: 1; padding: 7px 4px; }
  #signout { margin-left: auto; }
  .card { padding: 14px; border-radius: 14px; }
  .op-grid { grid-template-columns: 1fr 1fr; }
  .op-tile { padding: 10px; gap: 8px; }
  .op-tile .op-icon { width: 28px; height: 28px; font-size: 0.95rem; }
  .op-tile .op-label { font-size: 0.82rem; }
  .slot.reference { margin-left: 6px; }
  .row:not(.wrap):not(.spread) { flex-wrap: wrap; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}

/* ── upload folder picker ────────────────────────────────────────────── */
.drive-current { display: grid; gap: 4px; padding: 14px; border-radius: 14px; background: var(--surface-2); border: 1px solid var(--line); margin-bottom: 8px; }
.drive-current .label { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.drive-current code { font-size: 1rem; background: none; padding: 0; color: var(--text); word-break: break-all; }
#drive-browser:not(:empty) { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
#drive-browser.loading { opacity: 0.5; pointer-events: none; }
.crumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 2px; font-family: var(--mono); font-size: 0.85rem; }
.crumbs button.link { padding: 2px 4px; }
.folder-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 6px;
  max-height: 320px; overflow: auto; margin: 12px 0 4px; padding: 2px;
}
button.folder { text-align: left; background: var(--surface-2); border-color: var(--line); font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
button.folder:hover { border-color: color-mix(in srgb, var(--accent) 55%, transparent); }

/* ── toasts ──────────────────────────────────────────────────────────── */
#toasts { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 50; display: grid; gap: 8px; width: min(92vw, 420px); }
.toast {
  padding: 11px 16px; border-radius: 12px; font-size: 0.9rem; font-weight: 500;
  background: var(--surface); color: var(--text); border: 1px solid var(--line-strong);
  border-left: 4px solid var(--ok); box-shadow: 0 12px 32px -10px rgba(0, 0, 0, 0.55);
  animation: toast-in .22s ease-out;
}
.toast.error { border-left-color: var(--error); }
.toast.out { opacity: 0; transform: translateY(6px); transition: opacity .3s, transform .3s; }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } }