:root {
  color-scheme: light dark;
  --bg: #f3f5f2;
  --surface: #fbfcfa;
  --surface-muted: #edf1ec;
  --text: #17211b;
  --muted: #59665e;
  --line: #cdd6cf;
  --accent: #237a57;
  --accent-strong: #185b40;
  --accent-soft: #dbece3;
  --danger: #a13b35;
  --danger-soft: #f5e2df;
  --focus: #0b66c3;
  --radius: 10px;
  font-family: "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100dvh;
  margin: 0;
  background: var(--bg);
}

button, input, select { font: inherit; }

button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 0.55rem 0.85rem;
  background: var(--accent);
  color: #f8fffb;
  cursor: pointer;
  font-weight: 650;
}

button:hover { background: var(--accent-strong); }
button:active { transform: translateY(1px); }
button:disabled { cursor: wait; opacity: 0.62; }

button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 34%, transparent);
  outline-offset: 2px;
}

input, select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.62rem 0.72rem;
  background: var(--surface);
  color: var(--text);
}

input::placeholder { color: var(--muted); opacity: 0.85; }

.app-shell {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  min-height: 100dvh;
}

.brand {
  display: flex;
  grid-column: 1;
  align-items: center;
  gap: 0.75rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 1rem 1.15rem;
  background: var(--surface);
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--accent);
  color: #f8fffb;
  font-weight: 800;
}

.brand strong, .brand small { display: block; }
.brand small { margin-top: 0.12rem; color: var(--muted); font-size: 0.76rem; }

#nav {
  display: flex;
  grid-column: 1;
  grid-row: 2;
  flex-direction: column;
  gap: 0.28rem;
  border-right: 1px solid var(--line);
  padding: 0.9rem;
  background: var(--surface);
}

#nav button {
  justify-content: flex-start;
  border-color: transparent;
  background: transparent;
  color: var(--muted);
  text-align: left;
}

#nav button:hover { background: var(--surface-muted); color: var(--text); }
#nav button.active { background: var(--accent-soft); color: var(--accent-strong); }

main {
  grid-column: 2;
  grid-row: 1 / span 2;
  width: min(1120px, 100%);
  padding: clamp(1.2rem, 3vw, 3rem);
}

.page-heading { margin-bottom: 1.5rem; }
.page-heading h1 { margin: 0; font-size: clamp(1.8rem, 3vw, 2.5rem); letter-spacing: -0.035em; }
.page-heading p { max-width: 62ch; margin: 0.45rem 0 0; color: var(--muted); line-height: 1.55; }

.panel,
.token-panel,
.empty-state {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.panel { padding: clamp(1rem, 2vw, 1.5rem); }
.panel + .panel,
.panel + form { margin-top: 1rem; }
.panel > small { display: block; margin-top: 0.75rem; line-height: 1.4; }
.panel h2 { margin: 0 0 1rem; font-size: 1.05rem; }
.panel-copy { margin: -0.45rem 0 0; color: var(--muted); line-height: 1.5; }

.token-panel { max-width: 560px; margin: 12vh auto 0; padding: 1.5rem; }
.token-panel h1 { margin: 0; font-size: 1.55rem; }
.token-panel p { color: var(--muted); }

.empty-state { padding: 2rem; color: var(--muted); text-align: center; }

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.field { display: grid; align-content: start; gap: 0.38rem; }
.field label { font-size: 0.86rem; font-weight: 650; }
.field small { color: var(--muted); line-height: 1.4; }
.field.full { grid-column: 1 / -1; }

.inline-field, .actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.inline-field > input, .inline-field > select { flex: 1; }
.inline-field > button { flex: 0 0 auto; white-space: nowrap; }
.actions { margin-top: 1.25rem; }
.actions.compact { margin-top: 1rem; }

.status-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 0.7fr);
  gap: 1rem;
  margin-bottom: 1rem;
}

.connection-panel { min-height: 100%; }

.connection-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.connection-heading h2 {
  margin: 0.2rem 0 0;
  font-size: 1.45rem;
}

.section-label { color: var(--muted); font-size: 0.78rem; font-weight: 700; }
.heartbeat { margin: 0.75rem 0 1.4rem; color: var(--muted); }

.state {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.38rem 0.58rem;
  font-size: 0.78rem;
  font-weight: 750;
  white-space: nowrap;
}

.state.good { border-color: var(--accent); background: var(--accent-soft); color: var(--accent-strong); }
.state.bad { border-color: var(--danger); background: var(--danger-soft); color: var(--danger); }
.state.neutral { background: var(--surface-muted); color: var(--muted); }

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.65rem;
}

.metric {
  border-left: 2px solid var(--line);
  padding-left: 0.65rem;
}

.metric strong, .metric span { display: block; }
.metric strong { font-variant-numeric: tabular-nums; font-size: 1.25rem; }
.metric span { margin-top: 0.12rem; color: var(--muted); font-size: 0.76rem; }

.qr-panel { text-align: center; }
.qr-panel p { margin: -0.4rem auto 0.8rem; max-width: 34ch; color: var(--muted); line-height: 1.45; }
.qr-panel button { margin-top: 0.4rem; }
.qr-panel img { display: block; width: min(100%, 320px); height: auto; margin: 0.75rem auto 0; border-radius: var(--radius); }

.secondary {
  border-color: var(--line);
  background: var(--surface);
  color: var(--text);
}

.secondary:hover { background: var(--surface-muted); }

.danger {
  border-color: color-mix(in srgb, var(--danger) 35%, var(--line));
  background: var(--danger-soft);
  color: var(--danger);
}

.danger:hover { background: color-mix(in srgb, var(--danger-soft) 78%, var(--danger)); }

.feedback { min-height: 1.5rem; margin: 0.75rem 0 0; color: var(--muted); }
.feedback.success { color: var(--accent-strong); }
.feedback.failure { color: var(--danger); }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 0.75rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
th { color: var(--muted); font-size: 0.78rem; font-weight: 700; }
td { font-size: 0.9rem; }
.table-subline { display: block; margin-top: 0.2rem; color: var(--muted); }

.browser-toolbar {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) minmax(220px, 1.3fr) auto;
  gap: 0.65rem;
  margin-bottom: 1rem;
}

.browser-toolbar.single { grid-template-columns: minmax(220px, 360px); }
.message-list, .task-list { display: grid; gap: 0.75rem; }

.message-card, .task-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem;
  background: var(--surface);
}

.message-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.8rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.message-meta strong { color: var(--text); font-size: 0.9rem; }
.type-label { margin-left: auto; font-weight: 700; text-transform: capitalize; }
.body-copy { margin: 0.8rem 0 0; line-height: 1.55; white-space: pre-wrap; }

.audio-review {
  display: grid;
  grid-template-columns: minmax(240px, 0.85fr) minmax(0, 1.15fr);
  gap: 1rem;
  margin-top: 0.9rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.audio-side, .transcript { display: grid; align-content: start; gap: 0.55rem; }
.audio-side audio { width: 100%; min-height: 42px; }
.transcript { border-left: 2px solid var(--accent); padding-left: 0.85rem; }
.transcript p { margin: 0; line-height: 1.55; white-space: pre-wrap; }
.muted-copy { color: var(--muted); }

.message-image {
  display: block;
  width: min(100%, 560px);
  max-height: 420px;
  margin-top: 0.9rem;
  border-radius: var(--radius);
  object-fit: contain;
  background: var(--surface-muted);
}

.file-link { color: var(--accent-strong); font-weight: 700; text-underline-offset: 0.18em; }
.message-card > .file-link { display: inline-block; margin-top: 0.85rem; }

.task-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, auto);
  gap: 0.7rem 1rem;
}

.task-main h2 { margin: 0; font-size: 1rem; }
.task-main p { margin: 0.4rem 0 0; color: var(--muted); line-height: 1.5; white-space: pre-wrap; }
.task-meta { color: var(--muted); font-size: 0.8rem; }
.confidence { grid-column: 2; grid-row: 1; color: var(--accent-strong); font-size: 0.8rem; font-weight: 750; }

.task-updates {
  grid-column: 1 / -1;
  margin-top: 0.25rem;
  border-top: 1px solid var(--line);
  padding-top: 0.85rem;
}

.task-updates-heading {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.35rem 1rem;
}

.task-updates-heading h3 { margin: 0; font-size: 0.86rem; }
.timeline-note, .timeline-empty { color: var(--muted); font-size: 0.78rem; }
.timeline-empty { margin: 0.55rem 0 0; }

.task-update-list {
  display: grid;
  gap: 0.7rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
}

.task-update {
  border-left: 2px solid var(--accent);
  padding-left: 0.8rem;
}

.task-update-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.75rem;
  color: var(--muted);
  font-size: 0.76rem;
}

.task-update-meta strong { color: var(--text); font-size: 0.82rem; }
.task-update p { margin: 0.35rem 0 0; line-height: 1.5; white-space: pre-wrap; }

.review-badge {
  border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--line));
  border-radius: 999px;
  padding: 0.15rem 0.42rem;
  background: var(--danger-soft);
  color: var(--danger);
  font-weight: 700;
}

#error {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  max-width: min(440px, calc(100vw - 2rem));
  margin: 0;
  border: 1px solid color-mix(in srgb, var(--danger) 40%, var(--line));
  border-radius: var(--radius);
  padding: 0.85rem 1rem;
  background: var(--danger-soft);
  color: var(--danger);
}

[hidden] { display: none !important; }

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111713;
    --surface: #18201b;
    --surface-muted: #222c25;
    --text: #edf4ef;
    --muted: #a7b4aa;
    --line: #35423a;
    --accent: #48a979;
    --accent-strong: #73c99a;
    --accent-soft: #203e2d;
    --danger: #ef8c84;
    --danger-soft: #3e2523;
    --focus: #6eb4f2;
  }
}

@media (max-width: 760px) {
  .app-shell { display: block; }
  .brand { border-right: 0; }
  #nav {
    position: sticky;
    top: 0;
    z-index: 1;
    flex-direction: row;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding: 0.5rem;
  }
  #nav button { flex: 0 0 auto; }
  main { width: 100%; padding: 1rem; }
  .form-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .inline-field { align-items: stretch; flex-direction: column; }
  .status-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .actions.compact { align-items: stretch; flex-direction: column; }
  .browser-toolbar { grid-template-columns: 1fr; }
  .browser-toolbar.single { grid-template-columns: 1fr; }
  .audio-review { grid-template-columns: 1fr; }
  .transcript { border-top: 2px solid var(--accent); border-left: 0; padding-top: 0.75rem; padding-left: 0; }
  .task-row { grid-template-columns: 1fr; }
  .confidence { grid-column: 1; grid-row: auto; }
  .task-updates-heading { align-items: flex-start; flex-direction: column; }
}