:root {
  color-scheme: light dark;
  --bg: #f4f5f7;
  --panel: #ffffff;
  --border: #d7dae0;
  --text: #1c2024;
  --muted: #6b7280;
  --accent: #2563eb;
  --danger: #dc2626;
  --ok: #16a34a;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16181d;
    --panel: #202329;
    --border: #333844;
    --text: #e6e8eb;
    --muted: #9aa0ab;
    --accent: #5b9dff;
    --danger: #ef4444;
    --ok: #34d399;
  }
}

* { box-sizing: border-box; }

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

.hidden { display: none !important; }

button {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--accent);
  border-radius: 6px;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-size: 0.9rem;
}

button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

button.danger { background: var(--danger); border-color: var(--danger); }
button:disabled { opacity: 0.5; cursor: default; }

input, select, textarea {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg);
  color: var(--text);
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
  font-family: inherit;
}

/* --- Auth --- */

.auth-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  width: min(340px, 90vw);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.auth-card h1 { margin: 0 0 0.5rem; font-size: 1.3rem; text-align: center; }
.auth-buttons { display: flex; gap: 0.5rem; }
.auth-buttons button { flex: 1; }
.auth-message { min-height: 1.2em; margin: 0; font-size: 0.85rem; color: var(--danger); text-align: center; }
.auth-message.ok { color: var(--ok); }

/* --- Topbar --- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}

.topbar h1 { font-size: 1.1rem; margin: 0; }
.topbar-actions { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.toggle { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 0.3rem; }

/* --- Board --- */

.board {
  display: flex;
  gap: 0.9rem;
  padding: 1.25rem;
  overflow-x: auto;
  align-items: flex-start;
}

.lane {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem;
  flex: 1 1 0;
  min-width: 220px;
  min-height: 50vh;
}

.lane.collapsed { min-height: 0; flex: 0 0 auto; }
.lane.collapsed .lane-cards { display: none; }

.lane h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  margin: 0.2rem 0.4rem 0.6rem;
  display: flex;
  justify-content: space-between;
  cursor: default;
  user-select: none;
}

.lane h2 .count { font-weight: normal; }
.lane[data-status="draft"] h2 { cursor: pointer; }

.lane-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-height: 3rem;
}

.lane-cards.drag-over {
  outline: 2px dashed var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  cursor: grab;
}

.card:active { cursor: grabbing; }

.card .card-meta {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  margin-bottom: 0.25rem;
  font-size: 0.7rem;
  color: var(--muted);
}

.card .task-key { font-family: ui-monospace, monospace; }

.card .card-project {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 0.35rem;
}

.card .card-title { font-weight: 600; font-size: 0.9rem; margin-bottom: 0.2rem; }

.card .card-preview {
  font-size: 0.8rem;
  color: var(--muted);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

/* --- Modal --- */

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 3vh 1rem;
  z-index: 100;
}

.modal {
  background: var(--panel);
  border-radius: 10px;
  width: min(760px, 94vw);
  max-height: 92vh;
  overflow-y: auto;
  padding: 1.25rem 1.5rem;
}

.modal-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.task-key-chip {
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.15rem 0.5rem;
  cursor: pointer;
  color: var(--muted);
  white-space: nowrap;
}

.task-key-chip:hover { color: var(--accent); border-color: var(--accent); }

.modal-header input[type="text"] {
  font-size: 1.05rem;
  font-weight: 600;
  flex: 1;
  border: none;
  background: transparent;
  padding: 0.2rem;
}

.modal-close { margin-left: auto; }

.modal-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
  align-items: center;
  flex-wrap: wrap;
}

.field-block { margin-bottom: 1rem; }

.field-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--muted);
  margin-bottom: 0.3rem;
}

.field-label button { padding: 0.1rem 0.5rem; font-size: 0.7rem; }

.field-block textarea {
  width: 100%;
  min-height: 110px;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  resize: vertical;
}

.md-preview {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  min-height: 60px;
  font-size: 0.9rem;
}

.md-preview img { max-width: 100%; }
.md-preview pre { overflow-x: auto; background: var(--panel); padding: 0.5rem; border-radius: 6px; }
.md-preview :first-child { margin-top: 0; }
.md-preview :last-child { margin-bottom: 0; }

.attachments {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.4rem 0;
}

.attachments a img {
  width: 84px;
  height: 84px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}

.paste-hint { font-size: 0.75rem; color: var(--muted); }

/* --- Timeline --- */

.timeline { margin-top: 0.5rem; }

.timeline-entry {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.8rem;
  margin-bottom: 0.6rem;
  background: var(--bg);
}

.timeline-entry.agent { border-left: 3px solid var(--accent); }

.entry-meta {
  display: flex;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
  align-items: center;
}

.entry-kind {
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 0.3rem;
}

.entry-delete { margin-left: auto; background: none; border: none; color: var(--muted); cursor: pointer; padding: 0; font-size: 0.8rem; }
.entry-delete:hover { color: var(--danger); }

.note-composer { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.6rem; }
.note-composer textarea { min-height: 70px; }
.note-composer .composer-actions { display: flex; justify-content: flex-end; gap: 0.5rem; }

.modal-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}

/* --- Admin --- */

.admin-section { margin-bottom: 1.25rem; }
.admin-section h3 { margin: 0 0 0.5rem; font-size: 0.95rem; }

table.users {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

table.users th, table.users td {
  text-align: left;
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid var(--border);
}

table.users th { color: var(--muted); font-weight: 500; }
table.users td .badge {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0 0.35rem;
  font-size: 0.75rem;
}
table.users td .badge.pending { color: var(--danger); border-color: var(--danger); }
table.users td .badge.active { color: var(--ok); border-color: var(--ok); }
table.users td .actions { display: flex; gap: 0.35rem; }
table.users td .actions button { padding: 0.15rem 0.5rem; font-size: 0.75rem; }

.api-key-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  flex-wrap: wrap;
}

.api-key-row code {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.5rem;
  word-break: break-all;
}