/* Enterprise legal-workbench visual language adapted for 耀速報:
   navy palette, flat 1px structure, serif for titles + AI opinion content,
   sans for UI/forms/nav, squared corners, semantic colour used sparingly. */
:root {
  --navy: #001F60;      /* primary actions, selected state, key nav */
  --navy-mid: #0F4C97;  /* links, hover, secondary brand info */
  --blue-pale: #E8EEF8; /* user question, selection, brand background */

  --bg: #FAFAFA;
  --card: #FFFFFF;
  --text: #111827;
  --text-2: #4B5563;
  --muted: #6B7280;
  --border: #E5E7EB;

  --amber: #FF9D00;     /* AI running, pending, medium risk */
  --amber-bg: #FFF4E0;
  --amber-text: #92400E;
  --danger: #B42318;    /* high risk, permanent delete, error */
  --danger-bg: #FBEAE8;
  --ok: #2E6B1E;        /* complete, acceptable, positive */
  --ok-bg: #E7F0E4;

  --radius: 2px;
  --sans: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", system-ui, sans-serif;
  --serif: "Noto Serif TC", "Source Han Serif TC", "Songti TC", "Songti SC", "PMingLiU", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
}

/* ---------- top bar (mobile) ---------- */
#topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 10px;
  background: var(--navy); color: #fff;
  min-height: 52px; padding: 0 14px;
  padding-top: env(safe-area-inset-top);
}
#topbar-title {
  background: transparent; border: 0; color: #fff; cursor: pointer;
  font-family: inherit; font-weight: 600; font-size: 16px; letter-spacing: .5px; padding: 6px 4px;
}
#menu-btn {
  background: rgba(255,255,255,.12); color: #fff; border: 0;
  border-radius: var(--radius); padding: 6px 12px; font-size: 17px; cursor: pointer;
}
#topbar-bell {
  margin-left: auto; display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.12); color: #fff; border: 0;
  border-radius: var(--radius); padding: 6px 12px; font-size: 14px; cursor: pointer;
}
.topbar-count {
  background: var(--amber); color: #3d2600; font-weight: 700;
  border-radius: var(--radius); padding: 0 7px; font-size: 12px; line-height: 18px;
}

/* ---------- side navigation ---------- */
#sidebar {
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 40;
  width: 214px; background: var(--navy); color: #fff;
  display: flex; flex-direction: column;
  padding: 16px 0 12px;
  border-right: 1px solid #001445;
  transform: translateX(-100%);
  transition: transform .2s ease;
  overflow-y: auto;
}
body.sidebar-open #sidebar { transform: translateX(0); }
#sidebar .brand {
  display: block; width: 100%; text-align: left;
  background: transparent; border: 0; color: #fff; cursor: pointer;
  font-family: var(--serif); font-weight: 600; font-size: 18px;
  letter-spacing: 1px; padding: 0 18px 14px;
}
#sidebar .section-title {
  font-size: 11px; letter-spacing: 1.5px; color: rgba(255,255,255,.5);
  padding: 16px 18px 6px;
}
#sidebar button.nav-item {
  display: block; width: 100%; text-align: left;
  background: transparent; color: rgba(255,255,255,.86); border: 0;
  border-left: 3px solid transparent;
  padding: 10px 18px; font-size: 15px; cursor: pointer; font-family: inherit;
}
#sidebar button.nav-item:hover { background: rgba(255,255,255,.07); }
#sidebar button.nav-item.active {
  background: rgba(255,255,255,.12); border-left-color: #fff; font-weight: 600;
}
#sidebar .nav-count {
  margin-left: 8px; background: var(--amber); color: #3d2600; font-weight: 700;
  border-radius: var(--radius); padding: 0 7px; font-size: 12px; line-height: 18px;
  display: inline-block;
}
#sidebar .sidebar-footer {
  margin-top: auto; padding: 12px 18px 0; border-top: 1px solid rgba(255,255,255,.14);
}
#sidebar .sidebar-user { font-size: 14px; margin-bottom: 8px; }
#sidebar .sidebar-user .badge { margin-left: 6px; background: rgba(255,255,255,.18); color: #fff; border: 0; }
#sidebar .sidebar-footer button.nav-item { padding: 8px 0; font-size: 14px; border-left: 0; }

#sidebar-backdrop {
  position: fixed; inset: 0; z-index: 30; background: rgba(0,0,0,.4);
  opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
body.sidebar-open #sidebar-backdrop { opacity: 1; pointer-events: auto; }

/* ---------- work surface ---------- */
#view { max-width: 900px; margin: 0 auto; padding: 16px 14px 90px; }

[hidden] { display: none !important; }

@media (min-width: 900px) {
  #topbar, #sidebar-backdrop { display: none; }
  #sidebar { transform: none; }
  body.authed #view { margin-left: 214px; }
}

/* Serif = the "formal document" voice: page/case titles and AI opinion text. */
h1 { font-family: var(--serif); font-size: 22px; font-weight: 600; margin: 6px 0 16px; letter-spacing: .5px; }
h2 { font-size: 15px; font-weight: 600; margin: 20px 0 8px; color: var(--text); }
h3 { font-size: 14px; font-weight: 600; margin: 14px 0 8px; }
a { color: var(--navy-mid); }

/* ---------- cards & primitives ---------- */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; margin-bottom: 12px;
}
.card.tappable { cursor: pointer; transition: border-color .12s ease, background .12s ease; }
.card.tappable:hover { border-color: var(--navy-mid); }
.card.tappable:active { background: var(--blue-pale); }

.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.muted { color: var(--muted); font-size: 13px; }
.spacer { flex: 1; }
.list-spacer { height: 10px; }
.mt-8 { margin-top: 8px; }
.mb-10 { margin-bottom: 10px; }
.pre-wrap { white-space: pre-wrap; }

/* ---------- status & meta badges (squared, quiet) ---------- */
.badge {
  display: inline-block; font-size: 12px; padding: 2px 8px;
  border-radius: var(--radius); background: #F3F4F6; color: var(--text-2);
  border: 1px solid var(--border); white-space: nowrap;
}
.badge.st-draft { background: #F3F4F6; color: var(--text-2); }
.badge.st-analyzing { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }
.badge.st-pending_sales_confirm { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }
.badge.st-pending_assistant { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }
.badge.st-discussing { background: var(--blue-pale); color: var(--navy-mid); border-color: #C7D7EE; }
.badge.st-requirements_confirmed { background: var(--ok-bg); color: var(--ok); border-color: #C5DBBD; }
.badge.st-quoted { background: var(--ok-bg); color: var(--ok); border-color: #C5DBBD; }
.badge.st-closed, .badge.st-cancelled { background: #F3F4F6; color: var(--muted); }
.badge.new { background: var(--navy); color: #fff; border-color: var(--navy); }
.badge.warn { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }
.badge.owner-sales { background: var(--blue-pale); color: var(--navy-mid); border-color: #C7D7EE; }
.badge.owner-assistant { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }

/* ---------- forms ---------- */
label.field { display: block; margin-bottom: 12px; font-size: 13px; color: var(--text-2); }
input[type="text"], input[type="password"], input[type="number"], input[type="email"],
input[type="tel"], textarea, select {
  width: 100%; padding: 10px 12px; margin-top: 4px;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 16px; font-family: inherit; background: #fff; color: var(--text);
}
textarea { min-height: 90px; resize: vertical; }
input:focus, textarea:focus, select:focus { outline: 2px solid var(--navy); outline-offset: 0; border-color: var(--navy); }
input.low-confidence, textarea.low-confidence {
  border-color: var(--danger); background: var(--danger-bg);
}

/* ---------- buttons: primary navy / AI amber / secondary outline / danger red ---------- */
button.primary, button.secondary, button.danger, button.ghost, button.ai {
  border: 1px solid transparent; border-radius: var(--radius);
  padding: 11px 16px; font-size: 15px; font-weight: 500;
  cursor: pointer; font-family: inherit;
}
button.primary { background: var(--navy); color: #fff; border-color: var(--navy); }
button.primary:hover { background: #012a7d; }
button.ai { background: var(--amber); color: #3d2600; border-color: var(--amber); font-weight: 600; }
button.ai:hover { background: #f59200; }
button.secondary { background: #fff; color: var(--text); border-color: var(--border); }
button.secondary:hover { border-color: var(--navy-mid); color: var(--navy-mid); }
button.danger { background: #fff; color: var(--danger); border-color: #E7B7B1; }
button.danger:hover { background: var(--danger-bg); }
button.ghost { background: transparent; color: var(--navy-mid); border-color: transparent; padding: 6px 8px; }
button.ghost:hover { text-decoration: underline; }
button:disabled { opacity: .45; cursor: default; }
button.small { padding: 6px 10px; font-size: 13px; }

.actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.actions button { flex: 1; min-width: 140px; }

/* ---------- photos ---------- */
.photo-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 10px; }
.photo-tile { position: relative; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: #fff; }
.photo-tile img { width: 100%; height: 110px; object-fit: cover; display: block; }
.photo-tile .meta { padding: 6px; font-size: 12px; color: var(--text-2); }
.photo-tile .quality { position: absolute; top: 4px; left: 4px; display: flex; gap: 4px; flex-wrap: wrap; }
.photo-tile.failed { border-color: var(--danger); }
.photo-tile.flash { outline: 3px solid var(--navy); outline-offset: 2px; }

/* ---------- requirement item cards ---------- */
.item-card { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 10px; background: #fff; }
.item-card .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.item-card .grid .wide { grid-column: 1 / -1; }
.item-card label { font-size: 12px; color: var(--muted); display: block; }

.chip {
  display: inline-block; background: var(--blue-pale); color: var(--navy-mid);
  padding: 6px 12px; border-radius: var(--radius); font-size: 13px;
  border: 1px solid #C7D7EE; cursor: pointer; margin: 0 6px 6px 0; font-family: inherit;
}
.chip:hover { border-color: var(--navy-mid); }

/* ---------- human discussion thread (flattened, not toy chat) ---------- */
.msg { margin-bottom: 10px; max-width: 85%; }
.msg .bubble {
  padding: 9px 12px; border-radius: var(--radius); background: #F3F4F6;
  border: 1px solid var(--border); display: inline-block;
  white-space: pre-wrap; word-break: break-word;
}
.msg.mine { margin-left: auto; text-align: right; }
.msg.mine .bubble { background: var(--blue-pale); border-color: #C7D7EE; }
.msg .who { font-size: 12px; color: var(--muted); margin-bottom: 3px; }

/* ---------- timeline ---------- */
.timeline { list-style: none; padding: 0; margin: 0; font-size: 13px; color: var(--text-2); }
.timeline li { padding: 5px 0; border-left: 2px solid var(--border); padding-left: 12px; margin-left: 4px; }

/* ---------- users table ---------- */
table.users { width: 100%; border-collapse: collapse; font-size: 14px; }
table.users th, table.users td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); }
table.users th { font-size: 12px; letter-spacing: .5px; color: var(--muted); font-weight: 600; }

/* ---------- toasts ---------- */
#toasts { position: fixed; bottom: 16px; left: 0; right: 0; display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 50; pointer-events: none; }
.toast {
  background: var(--text); color: #fff; padding: 11px 18px; border-radius: var(--radius);
  font-size: 14px; max-width: 90%; box-shadow: 0 6px 18px rgba(0,0,0,.22);
}
.toast.error { background: var(--danger); }

/* ---------- status sections (case list) ---------- */
.section-header {
  display: flex; align-items: center; gap: 8px;
  width: 100%; text-align: left; cursor: pointer;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 11px 14px; margin: 16px 0 8px;
  font-size: 14px; font-weight: 600; color: var(--text); font-family: inherit;
  border-left-width: 4px;
}
.section-header .section-chevron { color: var(--muted); font-size: 12px; }
.section-header .section-label { flex: 1; letter-spacing: .5px; }
.section-header .section-count { background: #F3F4F6; }
.section-header.accent-todo { border-left-color: var(--amber); }
.section-header.accent-todo .section-count { background: var(--amber-bg); color: var(--amber-text); border-color: #F3D9A6; }
.section-header.accent-discussing { border-left-color: var(--navy-mid); }
.section-header.accent-sales { border-left-color: var(--navy-mid); }
.section-header.accent-assistant { border-left-color: var(--amber); }
.section-header.accent-quoted { border-left-color: var(--ok); }
.section-empty { padding: 0 4px 6px; }

/* ---------- assistant assignment picker ---------- */
.assistant-picker { display: flex; flex-wrap: wrap; gap: 8px; margin: 8px 0 4px; }
.assistant-option {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 9px 14px; font-size: 14px;
}
.assistant-option:has(input:checked) { border-color: var(--navy); background: var(--blue-pale); }
.assistant-option input { width: 18px; height: 18px; margin: 0; accent-color: var(--navy); }

/* ---------- banners ---------- */
.banner { padding: 11px 14px; border-radius: var(--radius); margin-bottom: 12px; font-size: 14px; border: 1px solid transparent; border-left-width: 4px; }
.banner.warn { background: var(--amber-bg); color: var(--amber-text); border-color: var(--amber); }
.banner.error { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.banner.info { background: var(--blue-pale); color: var(--navy-mid); border-color: var(--navy-mid); }

/* ---------- AI clarification: questions, opinion answers, proposals ---------- */
.clarification-panel {
  margin-top: 24px; padding-top: 4px; border-top: 2px solid var(--navy);
}
.clarification-panel h3 { margin: 16px 0 8px; font-size: 14px; }
.clarification-question {
  display: grid; grid-template-columns: 32px minmax(0, 1fr) auto;
  align-items: start; gap: 10px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  border-left: 3px solid var(--amber);
  padding: 12px; margin-bottom: 8px;
}
.clarification-index {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: var(--radius);
  background: var(--blue-pale); color: var(--navy); font-size: 12px; font-weight: 700;
}
.clarification-question-body { min-width: 0; }
.clarification-question-text, .clarification-summary-text {
  line-height: 1.55; overflow-wrap: anywhere;
}
.clarification-question-text { font-weight: 600; }
.clarification-question-meta { margin-top: 4px; color: var(--muted); font-size: 12px; }
.clarification-actions {
  display: flex; align-items: center; justify-content: flex-end; gap: 6px;
  align-self: center; white-space: nowrap;
}
.clarification-summary-list { margin-bottom: 10px; border-top: 1px solid var(--border); }
.clarification-summary-row {
  display: grid; grid-template-columns: 32px minmax(0, 1fr) auto;
  align-items: start; gap: 10px; padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.clarification-summary-row .badge { margin-top: 3px; }
.item-card.clarification-focus {
  border-color: var(--navy); box-shadow: 0 0 0 3px rgba(0, 31, 96, .16);
}

/* AI answer reads as a written opinion (serif); the sales question is a labelled
   pale-blue block (sans) — no symmetrical chat bubbles. */
.ai-msg { max-width: 100%; margin: 12px 0; }
.ai-msg .who { color: var(--muted); font-size: 12px; margin-bottom: 4px; letter-spacing: .5px; }
.ai-msg .bubble {
  display: block; padding: 12px 14px; border-radius: var(--radius);
  font-family: var(--serif); font-size: 15.5px; line-height: 1.75;
  background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--navy);
  white-space: pre-wrap; word-break: break-word; text-align: left; color: var(--text);
}
.ai-msg.mine { max-width: 88%; margin-left: auto; }
.ai-msg.mine .who { text-align: right; }
.ai-msg.mine .bubble {
  font-family: var(--sans); font-size: 14px; line-height: 1.6;
  background: var(--blue-pale); border: 1px solid #C7D7EE; border-left: 3px solid var(--navy-mid);
  text-align: left;
}
.clarification-proposal {
  background: var(--card); border: 1px solid var(--navy); border-radius: var(--radius);
  border-left: 3px solid var(--navy); padding: 14px; margin: 12px 0;
}
.clarification-proposal.applied, .clarification-proposal.rejected {
  border-color: var(--border); border-left-color: var(--border); opacity: .7;
}
.proposal-operation {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 10px 0; border-bottom: 1px solid var(--border); cursor: pointer;
}
.proposal-operation input { width: 18px; height: 18px; flex: 0 0 auto; accent-color: var(--navy); }
.proposal-operation > span { min-width: 0; }
.proposal-diff { display: grid; gap: 2px; margin: 4px 0; font-size: 13px; }
.clarification-compose { display: grid; grid-template-columns: 1fr auto auto; gap: 10px; align-items: end; margin-top: 12px; }
.clarification-compose textarea { min-height: 76px; margin: 0; }
.clarification-compose button { min-height: 44px; }

/* Voice dictation toggle: neutral at rest, amber while listening (AI-active colour). */
.mic-btn {
  background: var(--card); color: var(--text-2);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 14px; font-size: 14px; font-family: inherit;
  cursor: pointer; white-space: nowrap;
}
.mic-btn.recording {
  background: var(--amber); border-color: var(--amber); color: #3d2600; font-weight: 700;
}

/* ---------- notifications ---------- */
.notif-list { padding: 0; }
.notif-row {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 12px 16px; border-left: 3px solid transparent;
}
.notif-row + .notif-row { border-top: 1px solid var(--border); }
.notif-row.unread { background: var(--blue-pale); border-left-color: var(--navy); }
.notif-row.tappable { cursor: pointer; }
.notif-row.tappable:hover .notif-text { color: var(--navy-mid); }
.notif-text { min-width: 0; overflow-wrap: anywhere; }
.notif-row .muted { white-space: nowrap; }

/* ---------- login ---------- */
.login-wrap { max-width: 380px; margin: 12vh auto 0; }
.login-wrap h1 { text-align: center; }

/* ---------- accessibility ---------- */
:focus-visible { outline: 2px solid var(--navy); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- responsive ---------- */
@media (min-width: 700px) {
  #view { padding: 22px 18px 90px; }
  .item-card .grid { grid-template-columns: 2fr 2fr 1fr; }
}

@media (max-width: 520px) {
  .clarification-compose { grid-template-columns: 1fr; }
  .clarification-compose button { width: 100%; }
  .clarification-question, .clarification-summary-row {
    grid-template-columns: 28px minmax(0, 1fr);
  }
  .clarification-actions { grid-column: 2; width: 100%; }
  .clarification-actions button { flex: 1; }
  .clarification-summary-row .badge { grid-column: 2; justify-self: start; margin-top: 0; }
}