:root {
  --bg: #f7f7f8;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f46e5;
  --accent-contrast: #ffffff;
  --green-bg: #ecfdf5;
  --green-text: #047857;
  --amber-bg: #fffbeb;
  --amber-text: #b45309;
  --danger: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.04), 0 1px 3px rgba(16, 24, 40, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e0f12;
    --surface: #16181d;
    --border: #262932;
    --text: #f2f2f3;
    --muted: #9096a2;
    --accent: #818cf8;
    --accent-contrast: #101018;
    --green-bg: #06281f;
    --green-text: #34d399;
    --amber-bg: #2a1e05;
    --amber-text: #fbbf24;
    --danger: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

button, input, select, textarea { font: inherit; color: inherit; }

button {
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 8px 14px;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}
button:hover { border-color: var(--accent); }
button:active { transform: scale(0.98); }

button.primary {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}
button.primary:hover { opacity: 0.92; }

button.ghost {
  background: transparent;
  border-color: transparent;
}
button.ghost:hover { background: var(--border); }

button.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.danger:hover { background: var(--danger); color: #fff; }

button:disabled { opacity: 0.5; cursor: not-allowed; }

input[type="text"], input[type="email"], input[type="tel"], input[type="date"], input[type="time"], input[type="password"], textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  border-radius: 10px;
  padding: 9px 12px;
}
input:focus, textarea:focus, button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

label { font-size: 13px; color: var(--muted); display: block; margin: 10px 0 4px; }

.field { margin-bottom: 4px; }

/* ---------- Layout ---------- */

.center-screen {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.app {
  max-width: 1000px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 17px;
}
.brand .dot { font-size: 20px; }

.topbar-actions { display: flex; gap: 8px; align-items: center; }

.muted { color: var(--muted); }
.small { font-size: 13px; }

/* ---------- Calendar ---------- */

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 4px 14px;
}
.calendar-header h2 { margin: 0; font-size: 18px; font-weight: 600; }
.calendar-nav { display: flex; gap: 6px; }

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.weekday {
  text-align: center;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  padding-bottom: 6px;
}

.day-cell {
  min-height: 92px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.day-cell:hover { border-color: var(--accent); }
.day-cell.outside { opacity: 0.35; }
.day-cell.today { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }

.day-number { font-size: 12px; color: var(--muted); }

.party-pill {
  font-size: 11.5px;
  background: var(--accent);
  color: var(--accent-contrast);
  border-radius: 6px;
  padding: 3px 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.add-hint {
  font-size: 11px;
  color: var(--muted);
  opacity: 0;
}
.day-cell:hover .add-hint { opacity: 1; }

/* ---------- Dialogs ---------- */

dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  width: min(560px, 92vw);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(15, 15, 20, 0.5); }

.dialog-inner { padding: 22px; max-height: 84vh; overflow-y: auto; }

.dialog-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}
.dialog-head h3 { margin: 0; font-size: 17px; }

.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

.actions-row { display: flex; gap: 8px; justify-content: flex-end; margin-top: 18px; flex-wrap: wrap; }
.actions-row.space-between { justify-content: space-between; }

hr.sep { border: none; border-top: 1px solid var(--border); margin: 18px 0; }

/* ---------- Guest list ---------- */

.guest-summary {
  display: flex;
  gap: 16px;
  margin: 10px 0 14px;
  flex-wrap: wrap;
}
.stat { font-size: 13px; color: var(--muted); }
.stat strong { color: var(--text); font-size: 15px; }

.guest-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }

.guest-row {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  flex-wrap: wrap;
}
.guest-info { flex: 1; min-width: 140px; }
.guest-name { font-weight: 600; font-size: 14px; }
.guest-contact { font-size: 12px; color: var(--muted); }

.badge {
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
}
.badge.paid { background: var(--green-bg); color: var(--green-text); }
.badge.unpaid { background: var(--amber-bg); color: var(--amber-text); }

.guest-actions { display: flex; gap: 6px; }
.icon-btn { padding: 6px 9px; font-size: 13px; }

.add-guest-form { display: flex; gap: 8px; flex-wrap: wrap; }
.add-guest-form input { flex: 1; min-width: 110px; }

.empty-state { text-align: center; color: var(--muted); padding: 30px 10px; }

.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 13px;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  z-index: 50;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(-4px); }
.toast.error { background: var(--danger); color: #fff; }

/* ---------- Login ---------- */

.login-card { width: min(360px, 92vw); padding: 30px 26px; }
.login-card h1 { font-size: 19px; margin: 0 0 4px; }
.login-card p.muted { margin: 0 0 18px; }
.error-text { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 8px; }

/* ---------- Ticket page ---------- */

.ticket-card { width: min(380px, 92vw); padding: 28px 24px; text-align: center; }
.ticket-card img { width: 200px; height: 200px; margin: 14px auto; display: block; }
.ticket-code { font-family: monospace; font-size: 22px; letter-spacing: 2px; font-weight: 700; margin: 6px 0; }