:root {
  --bg: #0f1115;
  --bg-2: #161922;
  --bg-3: #1d2230;
  --border: #262b3a;
  --text: #e7ebf3;
  --muted: #8b93a7;
  --accent: #6ea8ff;
  --accent-hover: #88baff;
  --red: #ef4444;
  --yellow: #f59e0b;
  --green: #22c55e;
  --danger: #e8484a;
  --shadow: 0 10px 30px rgba(0,0,0,0.4);
  --radius: 10px;
  --radius-sm: 6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.4;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 12px; }
.req { color: var(--red); }

/* Login */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  width: 100%;
  max-width: 360px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-card h1 {
  margin: 0;
  font-size: 22px;
}
.login-card label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

input, select, textarea, button {
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  outline: none;
  transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
textarea { resize: vertical; min-height: 70px; }

.btn {
  border: 1px solid var(--border);
  background: var(--bg-3);
  color: var(--text);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, opacity 0.15s;
}
.btn:hover { background: #242a3b; }
.btn.primary {
  background: var(--accent);
  color: #07101c;
  border-color: var(--accent);
}
.btn.primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn.ghost { background: transparent; }
.btn.danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger);
}
.btn.danger:hover { background: rgba(232,72,74,0.12); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }
.icon-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
}
.icon-btn:hover { color: var(--text); }

.error {
  background: rgba(232,72,74,0.12);
  color: #ffb3b4;
  border: 1px solid rgba(232,72,74,0.3);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
}

/* App shell */
.app { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
  gap: 10px;
}
.brand { font-weight: 600; font-size: 17px; letter-spacing: 0.3px; }
.controls { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.view-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.view-toggle button {
  background: transparent;
  border: none;
  padding: 7px 12px;
  cursor: pointer;
  color: var(--muted);
}
.view-toggle button.active { background: var(--bg-3); color: var(--text); }

.filters {
  display: flex;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-2);
  flex-wrap: wrap;
  align-items: end;
}
.filters label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}
.filters select {
  min-width: 130px;
  padding: 6px 8px;
  font-size: 13px;
}
.filters .count {
  margin-left: auto;
  color: var(--muted);
  font-size: 13px;
  padding-bottom: 6px;
}

.board {
  padding: 20px;
  flex: 1;
}

/* List view */
.list-group { margin-bottom: 24px; }
.list-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
}
.list-group-header .count {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
}
.task-list { display: flex; flex-direction: column; gap: 6px; }

.task-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
  transition: border-color 0.15s, transform 0.05s;
}
.task-card:hover { border-color: #3a4358; }
.task-card.done { opacity: 0.55; }
.task-card .checkbox {
  margin-top: 2px;
  width: 18px;
  height: 18px;
  border: 2px solid var(--muted);
  border-radius: 4px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  background: transparent;
}
.task-card .checkbox.done { border-color: var(--green); background: var(--green); }
.task-card .checkbox.done::after {
  content: "✓";
  color: #07101c;
  font-size: 13px;
  font-weight: 700;
}
.task-card .main { flex: 1; min-width: 0; }
.task-card .title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.task-card .title { font-weight: 500; }
.task-card.done .title { text-decoration: line-through; }
.task-card .desc { color: var(--muted); font-size: 13px; margin-top: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.task-card .badges { display: inline-flex; gap: 6px; flex-wrap: wrap; }
.task-card .footer {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.badge.red { background: rgba(239,68,68,0.18); color: var(--red); border: 1px solid rgba(239,68,68,0.4); }
.badge.yellow { background: rgba(245,158,11,0.16); color: var(--yellow); border: 1px solid rgba(245,158,11,0.4); }
.badge.green { background: rgba(34,197,94,0.16); color: var(--green); border: 1px solid rgba(34,197,94,0.4); }
.badge.muted { background: var(--bg-3); color: var(--muted); border: 1px solid var(--border); }

/* Urgency indicator on task cards — colored left border + background tint */
.task-card { position: relative; border-left-width: 4px; }
.task-card.urgency-1 { border-left-color: var(--red) !important; background: rgba(180,30,30,0.20) !important; }
.task-card.urgency-2 { border-left-color: var(--yellow); background: rgba(180,140,0,0.15) !important; }
.task-card.urgency-3 { border-left-color: var(--green); background: rgba(20,120,20,0.10) !important; }

.urgency-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-right: 2px;
  vertical-align: middle;
}
.urgency-dot.urgency-1 { background: var(--red); box-shadow: 0 0 6px rgba(239,68,68,0.6); }
.urgency-dot.urgency-2 { background: var(--yellow); box-shadow: 0 0 6px rgba(245,158,11,0.5); }
.urgency-dot.urgency-3 { background: var(--green); box-shadow: 0 0 6px rgba(34,197,94,0.5); }

/* Kanban view */
.kanban {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.kanban-col {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 200px;
}
.kanban-col-head {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--muted);
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
}

@media (max-width: 800px) {
  .kanban { grid-template-columns: 1fr; }
  .topbar { padding: 12px; }
  .filters { padding: 10px 12px; gap: 8px; }
  .board { padding: 12px; }
  .brand { font-size: 15px; }
}

/* Completed */
.completed-wrap { padding: 0 20px 30px; }
.completed-header {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 0;
  cursor: pointer;
}
.completed-header .chev { transition: transform 0.15s; display: inline-block; }
.completed-header.open .chev { transform: rotate(90deg); }
.completed-header .count {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 11px;
}
.completed-list { display: flex; flex-direction: column; gap: 6px; padding-top: 6px; }
@media (max-width: 800px) {
  .completed-wrap { padding: 0 12px 30px; }
}

/* Empty */
.empty {
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  color: var(--muted);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5,7,12,0.6);
  z-index: 20;
  backdrop-filter: blur(2px);
}
.modal {
  position: fixed;
  inset: 0;
  margin: auto;
  width: min(560px, calc(100% - 24px));
  max-height: calc(100vh - 32px);
  overflow: auto;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow);
  z-index: 21;
  display: flex;
  flex-direction: column;
  height: fit-content;
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
}
.modal-head h2 { margin: 0; font-size: 17px; }
.modal-body {
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.modal-body label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  color: var(--muted);
}
.modal-body .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 540px) {
  .modal-body .row { grid-template-columns: 1fr; }
}
.modal-actions {
  display: flex;
  gap: 8px;
  padding-top: 6px;
  align-items: center;
  flex-wrap: wrap;
}
.modal-actions .spacer { flex: 1; }
.meta {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.meta .lbl { color: #6f7689; margin-right: 6px; }