* { box-sizing: border-box; margin: 0; }
:root {
  --bg: #f4f6fa; --card: #fff; --text: #1c2333; --muted: #6b7487;
  --primary: #2563eb; --primary-d: #1d4ed8; --border: #dfe4ee;
  --danger: #dc2626; --today: #eff6ff;
}
body { font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 14px; }
.err { color: var(--danger); font-size: 14px; min-height: 18px; margin-top: 6px; }

/* Login */
#view-login { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.login-box { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 32px 28px; width: 100%; max-width: 380px; box-shadow: 0 8px 30px rgba(28,35,51,.08); }
.login-box h1 { font-size: 24px; margin-bottom: 4px; }
.login-box p { margin-bottom: 18px; }
.login-box input { width: 100%; margin-bottom: 12px; }

/* Header */
header { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; background: var(--card); border-bottom: 1px solid var(--border); padding: 10px 18px; position: sticky; top: 0; z-index: 10; }
.brand { font-weight: 700; font-size: 17px; }
nav { display: flex; gap: 4px; }
.tab { background: none; border: none; padding: 8px 14px; border-radius: 8px; font-size: 15px; cursor: pointer; color: var(--muted); }
.tab.active { background: var(--primary); color: #fff; }
.who { margin-left: auto; display: flex; align-items: center; gap: 10px; font-size: 14px; }

main { padding: 18px; max-width: 1250px; margin: 0 auto; }

/* Controls */
input, select, textarea { font: inherit; padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; background: #fff; color: var(--text); width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--primary); outline-offset: -1px; }
.btn { font: inherit; padding: 8px 14px; border: 1px solid var(--border); background: var(--card); border-radius: 8px; cursor: pointer; color: var(--text); }
.btn:hover { border-color: var(--primary); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-d); }
.btn.danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.full { width: 100%; }

/* Week view */
.week-nav { display: flex; align-items: center; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.wk-label { font-weight: 600; min-width: 170px; text-align: center; }
.week-nav #btn-add { margin-left: auto; }
.week-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 10px; }
.day-col { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 10px; min-height: 140px; }
.day-col.today { background: var(--today); border-color: var(--primary); }
.day-head { font-size: 13px; font-weight: 600; color: var(--muted); margin-bottom: 8px; display: flex; justify-content: space-between; }
.day-col.today .day-head { color: var(--primary); }
.ev { background: var(--primary); color: #fff; border-radius: 8px; padding: 6px 8px; font-size: 13px; margin-bottom: 6px; cursor: pointer; }
.ev.recurring { background: #7c3aed; }
.ev .ev-time { font-weight: 700; }
.ev .ev-who { opacity: .85; font-size: 11px; }

/* Cards / lists */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.card h3 { margin-bottom: 10px; }
.card form { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.card form input { width: auto; flex: 1; min-width: 160px; }
.page-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.user-row { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-bottom: 8px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.user-row .u-name { font-weight: 600; }
.user-row .u-meta { color: var(--muted); font-size: 13px; flex: 1; }
.badge { font-size: 11px; background: var(--primary); color: #fff; padding: 2px 8px; border-radius: 20px; }

/* Modal */
.modal { position: fixed; inset: 0; background: rgba(15,20,35,.45); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 100; }
.modal-box { background: var(--card); border-radius: 14px; padding: 22px; width: 100%; max-width: 460px; max-height: 92vh; overflow-y: auto; }
.modal-box h3 { margin-bottom: 14px; }
.modal-box form { display: flex; flex-direction: column; gap: 12px; }
.modal-box label { font-size: 13px; font-weight: 600; color: var(--muted); display: flex; flex-direction: column; gap: 4px; }
.lbl { font-size: 13px; font-weight: 600; color: var(--muted); display: block; margin-bottom: 5px; }
.modal-actions { display: flex; gap: 8px; margin-top: 6px; }
.spacer { flex: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 5px; border: 1px solid var(--border); border-radius: 20px; padding: 5px 11px; font-size: 13px; cursor: pointer; user-select: none; }
.chip:has(input:checked) { background: var(--primary); border-color: var(--primary); color: #fff; }
.chip input { accent-color: #fff; margin: 0; width: auto; }
.days-row { display: flex; gap: 5px; flex-wrap: wrap; }

/* WhatsApp QR */
#wa-qr img { margin: 10px 0; border: 1px solid var(--border); border-radius: 10px; }
#wa-status.ok { color: #16a34a; font-weight: 600; }

/* Log table */
.log-row { font-size: 13px; padding: 6px 0; border-bottom: 1px solid var(--border); display: flex; gap: 10px; flex-wrap: wrap; }
.log-row .ok { color: #16a34a; }
.log-row .fail { color: var(--danger); }

/* Mobile */
@media (max-width: 900px) {
  .week-grid { grid-template-columns: 1fr; }
  .day-col { min-height: unset; }
  .day-col:not(.today):not(:has(.ev)) { display: none; }
  header { gap: 8px; padding: 10px 12px; }
  .who span { display: none; }
}