:root {
  --bg: #f4f1e8;
  --surface: #ffffff;
  --surface-soft: #f8f7f2;
  --fg: #232521;
  --muted: #6b7068;
  --line: #ded8ca;
  --accent: #2d7a58;
  --accent-2: #b86f2f;
  --danger: #b3423e;
  --shadow: 0 16px 40px rgba(35, 37, 33, 0.12);
  --radius: 8px;
  --font: "Microsoft JhengHei", "Noto Sans TC", "Segoe UI", system-ui, sans-serif;
  --mono: Consolas, "SFMono-Regular", ui-monospace, monospace;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.55;
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
hr { width: 100%; border: 0; border-top: 1px solid var(--line); margin: 4px 0; }

.hidden { display: none !important; }
.app { min-height: 100vh; display: grid; grid-template-rows: auto 1fr; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 64px;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 18px;
  background: color-mix(in srgb, var(--surface) 94%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 245px;
}
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--surface);
  font-weight: 900;
}
.brand strong { display: block; font-size: 18px; letter-spacing: 0; }
.brand span:last-child { display: block; color: var(--muted); font-size: 12px; }

.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
}
.tab {
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  min-height: 34px;
  padding: 6px 11px;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}
.tab.active {
  background: var(--surface);
  color: var(--fg);
  box-shadow: 0 1px 4px rgba(35, 37, 33, 0.10);
}
.account {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.session-label {
  color: var(--muted);
  font-size: 13px;
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.layout {
  display: grid;
  grid-template-columns: 330px 1fr;
  min-height: calc(100vh - 64px);
}
.side {
  position: sticky;
  top: 64px;
  height: calc(100vh - 64px);
  overflow: auto;
  border-right: 1px solid var(--line);
  border-radius: 0;
}
.workspace { min-width: 0; padding: 22px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 1px 0 rgba(35, 37, 33, 0.03);
}
.stack { display: grid; gap: 16px; align-content: start; }
.small-gap { gap: 10px; }
.two-col { display: grid; grid-template-columns: minmax(320px, 0.9fr) minmax(420px, 1.1fr); gap: 16px; align-items: start; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 12px; }

.view { display: none; }
.view.active { display: grid; gap: 16px; }
.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}
.section-head h2, .panel h2 { font-size: 24px; line-height: 1.25; letter-spacing: 0; }
.panel h3 { font-size: 18px; line-height: 1.3; letter-spacing: 0; }
.panel h4 { font-size: 14px; color: var(--muted); margin-top: 4px; }
.eyebrow {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}
.muted { color: var(--muted); }

.toolbar { display: flex; gap: 8px; align-items: center; }
.field-label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 750;
}
.field {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--fg);
  padding: 8px 10px;
  outline: 0;
}
.field.compact { width: 220px; }
.field.area { min-height: 100px; resize: vertical; }
.field:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent);
}
.toggle {
  min-height: 40px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--fg);
  font-weight: 700;
}
.toggle input { accent-color: var(--accent); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--fg);
  padding: 8px 12px;
  font-weight: 800;
  font-size: 14px;
}
.btn:hover { border-color: color-mix(in srgb, var(--fg) 30%, var(--line)); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--surface);
}
.btn.primary:hover { background: color-mix(in srgb, var(--accent) 88%, black); }
.btn.ghost { background: transparent; }
.btn.icon { width: 38px; padding: 0; font-family: var(--mono); }
.btn.danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 35%, var(--line)); }

.chip-list, .skill-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip, .skill-choice {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--fg);
  padding: 5px 9px;
  font-size: 13px;
}
.chip strong { font-weight: 850; }
.skill-choice input, .skill-choice select { accent-color: var(--accent); }
.skill-choice select {
  border: 0;
  border-left: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  padding-left: 6px;
  outline: 0;
}
.skill-choice.active {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}

.card-list { display: grid; gap: 10px; }
.card {
  display: grid;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.card:hover, .card.selected {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow: var(--shadow);
}
.card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.card h3 { font-size: 18px; letter-spacing: 0; }
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: var(--muted);
  font-size: 13px;
}
.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
}
.badge.open { background: color-mix(in srgb, var(--accent) 12%, var(--surface)); color: var(--accent); }
.badge.score { background: color-mix(in srgb, var(--accent-2) 15%, var(--surface)); color: color-mix(in srgb, var(--accent-2) 76%, black); }
.pay { font-family: var(--mono); font-weight: 900; color: var(--accent); white-space: nowrap; }
.mini-list { display: grid; gap: 8px; }
.mini-item {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-soft);
  font-size: 13px;
}
.thread-box {
  min-height: 220px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: var(--surface-soft);
}
.message {
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--fg);
}
.message .meta-row { margin-bottom: 4px; }

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 50;
  display: none;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--fg);
  color: var(--surface);
  box-shadow: var(--shadow);
  font-size: 14px;
}
.toast.show { display: block; }

@media (max-width: 1120px) {
  .topbar { flex-wrap: wrap; }
  .account { margin-left: 0; }
  .layout { grid-template-columns: 1fr; }
  .side {
    position: static;
    height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .two-col { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .topbar, .workspace { padding: 12px; }
  .brand { min-width: 0; }
  .tabs { width: 100%; overflow: auto; }
  .section-head, .toolbar, .card-head { flex-direction: column; align-items: stretch; }
  .field.compact { width: 100%; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
}