/* ── theme ────────────────────────────────────────────── */
:root, [data-theme="dark"] {
  --bg: #0f1117; --bg2: #161923; --card: #1c2030; --border: #2a2f42;
  --text: #e8eaf2; --muted: #8b91a7; --accent: #6366f1; --accent2: #818cf8;
  --danger: #ef4444; --ok: #22c55e;
}
[data-theme="light"] {
  --bg: #f4f5fa; --bg2: #ffffff; --card: #ffffff; --border: #e2e4ee;
  --text: #171a26; --muted: #6b7186; --accent: #4f46e5; --accent2: #6366f1;
}

* { box-sizing: border-box; margin: 0; }
body {
  background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  min-height: 100vh;
}
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .85em; font-weight: 400; }
[hidden] { display: none !important; }

/* ── brand ────────────────────────────────────────────── */
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 20px; letter-spacing: .3px; }
.brand-dot { width: 14px; height: 14px; border-radius: 4px; background: linear-gradient(135deg, var(--accent), var(--accent2)); display: inline-block; }

/* ── auth screens ─────────────────────────────────────── */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card {
  width: 100%; max-width: 420px; background: var(--card);
  border: 1px solid var(--border); border-radius: 16px; padding: 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.auth-card h1 { font-size: 22px; margin: 18px 0 6px; }
.auth-card p { margin-bottom: 14px; }
.auth-card form { display: flex; flex-direction: column; gap: 14px; margin-top: 10px; }
label { display: flex; flex-direction: column; gap: 6px; font-weight: 600; font-size: 13px; }
input {
  background: var(--bg2); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 11px 14px; font-size: 15px; outline: none;
}
input:focus { border-color: var(--accent); }

/* ── buttons ──────────────────────────────────────────── */
.btn {
  border: 1px solid var(--border); background: var(--bg2); color: var(--text);
  border-radius: 10px; padding: 11px 16px; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: filter .15s;
}
.btn:hover { filter: brightness(1.15); }
.btn.primary { background: linear-gradient(135deg, var(--accent), var(--accent2)); border: none; color: #fff; }
.btn.ghost { background: transparent; }
.btn.small { padding: 5px 10px; font-size: 13px; }
.btn:disabled { opacity: .6; cursor: wait; }
.form-error { color: var(--danger); font-size: 14px; }

/* ── app shell ────────────────────────────────────────── */
.app { display: flex; min-height: 100vh; }
.sidebar {
  width: 230px; background: var(--bg2); border-right: 1px solid var(--border);
  padding: 22px 14px; display: flex; flex-direction: column; gap: 24px;
  position: sticky; top: 0; height: 100vh;
}
.sidebar nav { display: flex; flex-direction: column; gap: 4px; flex: 1; }
.nav-item {
  color: var(--muted); text-decoration: none; padding: 9px 12px; border-radius: 9px;
  display: flex; align-items: center; gap: 8px; font-weight: 500;
}
.nav-item:hover { background: var(--card); color: var(--text); }
.nav-item.active { background: var(--card); color: var(--text); }
.soon { margin-left: auto; font-size: 10px; text-transform: uppercase; background: var(--border); color: var(--muted); padding: 2px 6px; border-radius: 20px; }
.sidebar-foot { display: flex; flex-direction: column; gap: 8px; }

.main { flex: 1; padding: 26px 32px; max-width: 1100px; }
.topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.topbar h2 { font-size: 24px; }
.user-chip { background: var(--card); border: 1px solid var(--border); padding: 7px 14px; border-radius: 30px; font-weight: 600; font-size: 14px; }

/* ── cards ────────────────────────────────────────────── */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 20px; }
.card h4 { margin-bottom: 10px; font-size: 14px; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.card.hero { margin-bottom: 18px; }
.card.hero h3 { font-size: 20px; margin-bottom: 6px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid .wide { grid-column: 1 / -1; }
.big { font-size: 22px; font-weight: 700; }
.big.ok { color: var(--ok); }
.big.err { color: var(--danger); }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { font-weight: 600; }

.session-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.session-row:last-child { border-bottom: none; }
.session-row .grow { flex: 1; }

/* ── calendar ─────────────────────────────────────────── */
.cal-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 18px; }
.cal-nav { display: flex; align-items: center; gap: 8px; }
.cal-nav h3 { font-size: 18px; margin-left: 10px; text-transform: capitalize; }
.cal-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.cal-card { margin-bottom: 18px; padding: 12px; }
.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
#cal-dow { margin-bottom: 4px; }
.cal-dow-cell { text-align: center; font-size: 12px; font-weight: 700; text-transform: uppercase; color: var(--muted); padding: 4px 0; }
.cal-cell {
  min-height: 92px; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 5px; cursor: pointer; overflow: hidden;
  display: flex; flex-direction: column; gap: 3px;
}
.cal-cell:hover { border-color: var(--accent); }
.cal-cell.other { opacity: .42; }
.cal-cell .day-num { font-size: 12px; font-weight: 700; color: var(--muted); }
.cal-cell.today { border-color: var(--accent); }
.cal-cell.today .day-num { color: var(--accent2); }
.chip {
  font-size: 11px; line-height: 1.3; padding: 2px 6px; border-radius: 5px;
  background: var(--accent); color: #fff; white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; cursor: pointer;
}
.chip.gcal { background: #0b8043; }
.chip.more { background: var(--border); color: var(--muted); }
.agenda-day { margin-bottom: 10px; }
.agenda-day h5 { font-size: 12px; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.agenda-item { display: flex; gap: 10px; padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 14px; cursor: pointer; }
.agenda-item:last-child { border-bottom: none; }
.agenda-item .when { color: var(--muted); min-width: 110px; }
.dot-g { color: #0b8043; }

/* ── modal ────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.modal {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 26px; width: 100%; max-width: 460px; max-height: 92vh; overflow-y: auto;
}
.modal h3 { margin-bottom: 14px; }
.modal form { display: flex; flex-direction: column; gap: 12px; }
.modal textarea {
  background: var(--bg2); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 11px 14px; font-size: 15px; outline: none; resize: vertical; font-family: inherit;
}
.modal textarea:focus { border-color: var(--accent); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
label.check { flex-direction: row; align-items: center; gap: 8px; }
label.check input { width: auto; }
.modal-buttons { display: flex; gap: 8px; align-items: center; margin-top: 6px; }
.modal-buttons .grow { flex: 1; }
.btn.danger { color: var(--danger); }
.g-connected { color: var(--ok); font-weight: 600; font-size: 13px; }

/* ── mobile ───────────────────────────────────────────── */
@media (max-width: 760px) {
  .cal-cell { min-height: 58px; }
  .chip { font-size: 9px; padding: 1px 4px; }
  .agenda-item .when { min-width: 84px; }
  .app { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; padding: 12px 16px; }
  .sidebar nav { flex-direction: row; overflow-x: auto; }
  .nav-item { white-space: nowrap; }
  .soon { display: none; }
  .sidebar .brand { display: none; }
  .sidebar-foot { flex-direction: row; }
  .main { padding: 18px; }
  .grid { grid-template-columns: 1fr; }
}