:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --text: #1f2933;
  --muted: #5c6b7a;
  --line: #d9e2ec;
  --accent: #0b5fff;
  --accent-soft: #eaf1ff;
  --ok: #0a7d32;
  --warn: #9a5b00;
  --error: #b42318;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 12px rgba(15, 23, 42, .05);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101418;
    --surface: #172029;
    --text: #e8eef5;
    --muted: #9fb0c2;
    --line: #2c3947;
    --accent: #7aa7ff;
    --accent-soft: #1d2c44;
    --ok: #57d68d;
    --warn: #f2b84b;
    --error: #ff8b80;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.45;
}

h1, h2, h3 { margin: 0; line-height: 1.2; }
h1 { font-size: 1.25rem; }
h2 { font-size: 1.1rem; }
h3 { font-size: 1rem; }
p { margin: .35rem 0; }
a { color: var(--accent); }

code {
  background: var(--accent-soft);
  border-radius: 4px;
  padding: .05rem .3rem;
  overflow-wrap: anywhere;
}

/* ---------------------------------------------------------------- top bar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: .7rem clamp(.8rem, 3vw, 2rem);
  background: var(--surface);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.brand { display: flex; align-items: center; gap: .6rem; min-width: 0; }
.brand p { color: var(--muted); font-size: .8rem; }
.logo {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: .9rem;
}

.tabs { display: flex; gap: .25rem; flex: 1 1 auto; }
.tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: .55rem .8rem;
  border-radius: 8px;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  min-height: 40px;
}
.tab:hover { background: var(--accent-soft); color: var(--text); }
.tab.active { background: var(--accent-soft); color: var(--accent); }

.token-button { margin-left: auto; }

/* ------------------------------------------------------------------ layout */
main {
  max-width: 72rem;
  margin: 0 auto;
  padding: 1rem clamp(.7rem, 3vw, 2rem) 3rem;
}
.tab-panel[hidden] { display: none; }
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
  margin-top: 1rem;
}

.muted { color: var(--muted); font-size: .9rem; }
.hint { color: var(--muted); font-size: .85rem; }
.error { color: var(--error); }
.notice {
  border-radius: 8px;
  padding: .55rem .75rem;
  margin-top: .8rem;
  background: var(--accent-soft);
  overflow-wrap: anywhere;
}
.notice.error { background: rgba(180, 35, 24, .1); }
.notice.ok { background: rgba(10, 125, 50, .1); }

/* ------------------------------------------------------------------ forms */
.add-form {
  display: flex;
  align-items: flex-end;
  gap: .7rem;
  flex-wrap: wrap;
  margin-top: .8rem;
}
.field { display: flex; flex-direction: column; gap: .25rem; min-width: 0; }
.field > span { font-size: .8rem; color: var(--muted); font-weight: 600; }
.field.grow { flex: 1 1 18rem; }
.field.narrow { flex: 0 0 6rem; }

input, select, button { font: inherit; }
input[type=url], input[type=text], input[type=password], input[type=number], select {
  width: 100%;
  min-height: 42px;
  padding: .5rem .6rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}
input:focus, select:focus, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  min-height: 42px;
  padding: .5rem .9rem;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  font-weight: 600;
}
button:disabled { opacity: .55; cursor: default; }
button.primary { background: var(--accent); color: #fff; }
button.ghost {
  background: transparent;
  color: var(--accent);
  border-color: var(--line);
}
button.danger { color: var(--error); border-color: var(--line); background: transparent; }
button.small { min-height: 34px; padding: .3rem .6rem; font-size: .85rem; }

.button-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: .5rem .9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
}

/* ------------------------------------------------------------------ queue */
.list-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .7rem;
  flex-wrap: wrap;
}
.filters { display: flex; gap: .35rem; flex-wrap: wrap; margin: .7rem 0; }
.chip {
  min-height: 34px;
  padding: .25rem .65rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-size: .85rem;
  font-weight: 600;
}
.chip.active { background: var(--accent-soft); color: var(--accent); border-color: transparent; }

.cards { display: flex; flex-direction: column; gap: .55rem; }
.job-card {
  display: grid;
  grid-template-columns: 9rem minmax(0, 1fr) auto;
  gap: .8rem;
  align-items: start;
  padding: .7rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
}
.thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 6px;
  background: var(--line);
}
.thumb[hidden] { display: block; visibility: hidden; }
.job-main { min-width: 0; }
.job-title-row { display: flex; gap: .5rem; align-items: flex-start; flex-wrap: wrap; }
.job-title { overflow-wrap: anywhere; }
.job-title a { color: inherit; text-decoration: none; }
.job-title a:hover { text-decoration: underline; }
.job-meta, .job-retention, .job-error {
  font-size: .85rem;
  color: var(--muted);
  overflow-wrap: anywhere;
}
.job-error { color: var(--error); white-space: pre-wrap; }
.job-actions { display: flex; flex-wrap: wrap; gap: .35rem; justify-content: flex-end; max-width: 19rem; }

.badge {
  display: inline-block;
  padding: .1rem .45rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .02em;
  text-transform: uppercase;
  background: var(--line);
  color: var(--text);
  white-space: nowrap;
}
.badge.queued { background: #e8eef5; color: #334e68; }
.badge.downloading { background: #fff3cd; color: var(--warn); }
.badge.imported { background: #d9f2e3; color: var(--ok); }
.badge.failed { background: #fde2df; color: var(--error); }
.badge.deleted { background: #eef1f4; color: var(--muted); }

@media (prefers-color-scheme: dark) {
  .badge.queued { background: #243447; color: #cfe0f5; }
  .badge.downloading { background: #3b2f12; color: var(--warn); }
  .badge.imported { background: #123524; color: var(--ok); }
  .badge.failed { background: #401a17; color: var(--error); }
  .badge.deleted { background: #232c35; color: var(--muted); }
}

.empty {
  padding: 1.2rem;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}

/* --------------------------------------------------------------- channels */
.channel-list { display: grid; gap: .8rem; margin-top: .8rem; }
.channel-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .8rem;
  background: var(--bg);
}
.channel-head {
  display: flex;
  gap: .5rem;
  align-items: baseline;
  justify-content: space-between;
  flex-wrap: wrap;
  margin-bottom: .6rem;
}
.channel-id { font-size: .78rem; color: var(--muted); overflow-wrap: anywhere; }
.channel-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr));
  gap: .6rem;
  align-items: end;
}
.channel-actions { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .7rem; }
.source-tag { font-size: .72rem; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: .05rem .45rem; }

/* ----------------------------------------------------------------- config */
.config-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: .8rem; }
.config-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: .8rem;
  background: var(--bg);
}
.config-card h3 { margin-bottom: .4rem; }
.config-card dl { margin: 0; display: grid; grid-template-columns: auto 1fr; gap: .2rem .6rem; font-size: .88rem; }
.config-card dt { color: var(--muted); }
.config-card dd { margin: 0; overflow-wrap: anywhere; }
.config-actions { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: .8rem; }

/* ------------------------------------------------------------------ token */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(10, 18, 28, .55);
}
.overlay[hidden] { display: none; }
.token-card {
  width: min(28rem, 100%);
  background: var(--surface);
  color: var(--text);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, .35);
}
.token-card h2 { margin-bottom: .3rem; }
.token-actions { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: .9rem; }

/* ------------------------------------------------------------------ toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 60;
  max-width: min(34rem, calc(100% - 1.5rem));
  margin: 0;
  padding: .7rem 1rem;
  border-radius: 10px;
  background: var(--error);
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
  overflow-wrap: anywhere;
}

/* ----------------------------------------------------------------- mobile */
@media (max-width: 680px) {
  .topbar { padding: .6rem .7rem; gap: .5rem; }
  .brand { flex: 1 1 auto; }
  .brand p { display: none; }
  .tabs { order: 3; width: 100%; overflow-x: auto; padding-bottom: .1rem; }
  .tab { flex: 1 0 auto; white-space: nowrap; }
  .token-button { padding: .35rem .6rem; }
  main { padding: .6rem .6rem 2.5rem; }
  .panel { padding: .8rem; }
  .add-form { gap: .55rem; }
  .field, .field.grow, .field.narrow { flex: 1 1 100%; }
  .add-form button.primary { width: 100%; }
  .job-card { grid-template-columns: 6rem minmax(0, 1fr); }
  .job-actions { grid-column: 1 / -1; justify-content: flex-start; max-width: none; }
  .job-actions button { flex: 1 1 auto; }
  .job-actions .small { min-height: 42px; }
  .channel-fields { grid-template-columns: 1fr; }
  .channel-actions button { flex: 1 1 auto; }
  .config-actions > * { flex: 1 1 auto; justify-content: center; }
}