:root {
  color-scheme: light dark;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1a1d21;
  --muted: #6b7280;
  --border: #e5e7eb;
  --accent: #4f46e5;
  --danger: #dc2626;
  --done: #16a34a;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --panel: #1e2126;
    --text: #e8eaed;
    --muted: #9aa0a6;
    --border: #30343a;
  }
}
* { 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; }
.screen.login-full, #login-screen { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 2rem;
  border-radius: 12px;
  width: 300px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.login-box input { padding: 0.6rem; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text); }
.login-box button { padding: 0.6rem; border-radius: 8px; border: none; background: var(--accent); color: white; cursor: pointer; }
.error { color: var(--danger); font-size: 0.85rem; min-height: 1em; }

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
header h1 { font-size: 1.2rem; margin: 0; }
.summary { display: flex; gap: 1rem; font-size: 0.85rem; color: var(--muted); }
#logout { background: transparent; border: 1px solid var(--border); color: var(--text); padding: 0.4rem 0.8rem; border-radius: 8px; cursor: pointer; }

main {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  padding: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
}

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 1rem; }
.panel-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; flex-wrap: wrap; gap: 0.5rem; }
.panel-header h2 { margin: 0; font-size: 1rem; }
.panel-header button, .filters button {
  background: var(--accent); color: white; border: none; padding: 0.4rem 0.7rem; border-radius: 8px; cursor: pointer; font-size: 0.85rem;
}
.filters { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.filters select { padding: 0.3rem; border-radius: 6px; border: 1px solid var(--border); background: transparent; color: var(--text); }

.project-card, .task-card {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem;
  margin-bottom: 0.6rem;
  cursor: pointer;
  transition: border-color 0.15s;
}
.project-card:hover, .task-card:hover { border-color: var(--accent); }
.project-card .name { font-weight: 600; }
.project-card .meta, .task-card .meta { font-size: 0.8rem; color: var(--muted); margin-top: 0.2rem; }

.progress-bar { background: var(--border); border-radius: 6px; height: 8px; margin-top: 0.4rem; overflow: hidden; }
.progress-bar-fill { background: var(--accent); height: 100%; }
.progress-bar-fill.done { background: var(--done); }

.task-card { display: flex; flex-direction: column; gap: 0.3rem; }
.task-card .title-row { display: flex; justify-content: space-between; align-items: center; }
.badge { font-size: 0.7rem; padding: 0.15rem 0.5rem; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); }
.badge.overdue { color: var(--danger); border-color: var(--danger); }
.badge.priority-URGENT { color: var(--danger); border-color: var(--danger); }
.badge.priority-HIGH { color: #d97706; border-color: #d97706; }

.modal {
  position: fixed; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center; z-index: 10;
  padding: 1rem;
}
.modal-box {
  background: var(--panel); border-radius: 12px; padding: 1.5rem; width: 100%; max-width: 420px;
  display: flex; flex-direction: column; gap: 0.5rem; max-height: 90vh; overflow-y: auto;
}
.modal-box label { font-size: 0.8rem; color: var(--muted); margin-top: 0.4rem; }
.modal-box input, .modal-box select, .modal-box textarea {
  padding: 0.5rem; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text); width: 100%;
}
.modal-box .row { display: flex; gap: 0.5rem; }
.modal-box .row > div { flex: 1; }
.modal-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }
.modal-actions button { padding: 0.5rem 1rem; border-radius: 8px; border: 1px solid var(--border); background: transparent; color: var(--text); cursor: pointer; }
.modal-actions button[type="submit"] { background: var(--accent); color: white; border: none; }
.modal-actions button.danger { background: transparent; color: var(--danger); border-color: var(--danger); margin-right: auto; }