:root {
  color-scheme: light;
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-hover: #f0f1f7;
  --border: #e3e7f0;
  --text: #1e2333;
  --text-muted: #6b7280;
  --primary: #4f5bd5;
  --primary-dark: #3d47ad;
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --success: #16a34a;
  --success-bg: #ecfdf5;
  --success-text: #047857;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(30, 35, 51, 0.08), 0 1px 2px rgba(30, 35, 51, 0.06);

  --status-waiting-bg: #e0e7ff; --status-waiting-text: #3730a3;
  --status-notified-bg: #ede9fe; --status-notified-text: #6b21a8;
  --status-completed-bg: #dcfce7; --status-completed-text: #166534;
  --status-cancelled-bg: #f1f5f9; --status-cancelled-text: #64748b;
  --urgency-soon-bg: #fef3c7; --urgency-soon-text: #b45309;
}

/* tmavý režim podľa systémovej preferencie, ak si používateľ nezvolil ručne */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #12141f;
    --surface: #1b1e2c;
    --surface-hover: #262a3d;
    --border: #2c3046;
    --text: #e7e9f3;
    --text-muted: #9298b3;
    --primary: #7981ea;
    --primary-dark: #9aa1f0;
    --danger: #f87171;
    --danger-bg: #3a1620;
    --success: #4ade80;
    --success-bg: #103322;
    --success-text: #86efac;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0, 0, 0, 0.25);

    --status-waiting-bg: #2e2f6b; --status-waiting-text: #c7d2fe;
    --status-notified-bg: #3f2a63; --status-notified-text: #e0d4fd;
    --status-completed-bg: #123a24; --status-completed-text: #bbf7d0;
    --status-cancelled-bg: #2a2f42; --status-cancelled-text: #cbd5e1;
    --urgency-soon-bg: #3a2a10; --urgency-soon-text: #fbbf24;
  }
}

/* ručne zvolený tmavý režim (prepínač) - má prednosť pred systémom */
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #12141f;
  --surface: #1b1e2c;
  --surface-hover: #262a3d;
  --border: #2c3046;
  --text: #e7e9f3;
  --text-muted: #9298b3;
  --primary: #7981ea;
  --primary-dark: #9aa1f0;
  --danger: #f87171;
  --danger-bg: #3a1620;
  --success: #4ade80;
  --success-bg: #103322;
  --success-text: #86efac;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0, 0, 0, 0.25);

  --status-waiting-bg: #2e2f6b; --status-waiting-text: #c7d2fe;
  --status-notified-bg: #3f2a63; --status-notified-text: #e0d4fd;
  --status-completed-bg: #123a24; --status-completed-text: #bbf7d0;
  --status-cancelled-bg: #2a2f42; --status-cancelled-text: #cbd5e1;
  --urgency-soon-bg: #3a2a10; --urgency-soon-text: #fbbf24;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

h1, h2 { margin: 0; }

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.brand { display: flex; align-items: center; gap: 8px; }
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--primary);
}
.brand h1 { font-size: 20px; font-weight: 700; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px;
}

.btn {
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}
.btn:hover { background: var(--surface-hover); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-link {
  background: none; border: none; color: var(--primary);
  font-weight: 600; cursor: pointer; font-size: 13px; padding: 0;
}
.btn-icon {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  width: 36px; height: 36px; font-size: 16px; cursor: pointer;
  color: var(--text); line-height: 1; display: inline-flex;
  align-items: center; justify-content: center;
}
.btn-icon:hover { background: var(--surface-hover); }
.modal-header .btn-icon { border: none; width: auto; height: auto; color: var(--text-muted); }
.btn-sm {
  padding: 5px 10px; font-size: 12px; border-radius: 6px;
}
.btn-danger-text { color: var(--danger); }

.stat-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}
.stat-card-danger .stat-value { color: var(--danger); }
.stat-card-success .stat-value { color: var(--success); }
.stat-value { font-size: 28px; font-weight: 700; }
.stat-label { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.dashboard-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 32px;
}
.dash-col h2 { font-size: 16px; margin-bottom: 10px; }

.event-cards { display: flex; flex-direction: column; gap: 8px; }
.event-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--primary);
  border-radius: 10px;
  padding: 10px 14px;
  box-shadow: var(--shadow);
}
.event-card.is-overdue { border-left-color: var(--danger); background: var(--danger-bg); }
.event-card-title { font-weight: 600; }
.event-card-meta { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

.empty-hint { color: var(--text-muted); font-size: 14px; padding: 10px 0; }

.events-header {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 12px;
}
.filters { display: flex; gap: 8px; }
.filters select {
  border: 1px solid var(--border); border-radius: 8px; padding: 7px 10px;
  font-size: 13px; background: var(--surface); color: var(--text);
}

.table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
th, td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--text-muted); }
tr:last-child td { border-bottom: none; }
tr.is-overdue td { background: var(--danger-bg); }

.badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: 12px; font-weight: 600; color: #fff;
}
.status-badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.status-waiting { background: var(--status-waiting-bg); color: var(--status-waiting-text); }
.status-notified { background: var(--status-notified-bg); color: var(--status-notified-text); }
.status-completed { background: var(--status-completed-bg); color: var(--status-completed-text); }
.status-cancelled { background: var(--status-cancelled-bg); color: var(--status-cancelled-text); }

/* --- naliehavosť (po termíne/dnes/zajtra/do 7/do 30/neskôr) --- */
.urgency-badge {
  display: inline-block; padding: 3px 9px; border-radius: 999px;
  font-size: 12px; font-weight: 600; white-space: nowrap;
}
.urgency-overdue { background: var(--danger-bg); color: var(--danger); }
.urgency-urgent { background: var(--danger-bg); color: var(--danger); }
.urgency-soon { background: var(--urgency-soon-bg); color: var(--urgency-soon-text); }
.urgency-later { background: var(--success-bg); color: var(--success-text); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }

.reminder-count-extra {
  display: inline-block; margin-left: 6px; padding: 1px 6px; border-radius: 999px;
  font-size: 11px; font-weight: 700; background: var(--border); color: var(--text-muted);
}

.modal-overlay {
  position: fixed; inset: 0; background: rgba(10, 11, 18, .55);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 40px 16px; overflow-y: auto; z-index: 100;
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--surface); border-radius: var(--radius);
  width: 100%; max-width: 520px; padding: 20px; box-shadow: 0 20px 40px rgba(0,0,0,.35);
}
.modal-small { max-width: 380px; }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }

#event-form label, #category-form label,
#login-form label, #register-form label, #forgot-form label, #reset-form label {
  display: block; font-size: 13px; font-weight: 600; color: var(--text-muted);
  margin-bottom: 12px;
}
#event-form input:not([type="checkbox"]):not([type="radio"]), #event-form textarea, #event-form select,
#category-form input, #category-form select,
#login-form input, #register-form input, #forgot-form input, #reset-form input {
  display: block; width: 100%; margin-top: 5px;
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 10px;
  font-size: 14px; font-family: inherit; color: var(--text); background: var(--surface);
}
#event-form textarea { resize: vertical; }
#category-form input[type=color] { padding: 2px; height: 38px; cursor: pointer; }

.form-row { display: flex; gap: 12px; }
.form-row .grow { flex: 1; }

.reminder-preview {
  font-size: 13px; font-weight: 600; padding: 8px 10px; border-radius: 8px;
  margin-bottom: 0; min-height: 34px; display: flex; align-items: center;
}
.reminder-preview.ok { background: var(--success-bg); color: var(--success-text); }
.reminder-preview.error { background: var(--danger-bg); color: var(--danger); }
.reminder-preview.idle { background: var(--bg); color: var(--text-muted); }

.field-hint { font-size: 12px; color: var(--text-muted); margin: 8px 0 14px; }

/* --- typ dátumu (radio) --- */
.radio-group { display: flex; gap: 16px; margin: 5px 0 14px; }
.radio-option {
  display: flex !important; align-items: center; gap: 6px;
  font-size: 14px !important; font-weight: 500 !important; color: var(--text) !important;
  margin-bottom: 0 !important; cursor: pointer;
}
.radio-option input[type="radio"] { width: auto; margin: 0; accent-color: var(--primary); cursor: pointer; }

/* --- PZP info box --- */
.pzp-info {
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 10px 12px; margin-bottom: 14px; font-size: 13px; color: var(--text);
}
.pzp-info strong { display: block; margin-bottom: 2px; }
.pzp-info .pzp-remaining { color: var(--text-muted); }
.pzp-info .pzp-disclaimer { color: var(--text-muted); font-size: 11px; margin-top: 4px; display: block; }

/* --- sloty upozornení --- */
.reminder-slot {
  border: 1px solid var(--border); border-radius: 10px; padding: 12px;
  margin-bottom: 10px; background: var(--bg);
}
.reminder-slot-header {
  font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 8px;
}
.reminder-slot-toggle {
  display: flex !important; align-items: center; gap: 8px;
  font-size: 13px !important; font-weight: 700 !important; color: var(--text) !important;
  margin-bottom: 8px !important; cursor: pointer;
}
.reminder-slot-toggle input[type="checkbox"] { width: auto; margin: 0; accent-color: var(--primary); cursor: pointer; }
.reminder-slot-body.hidden { display: none; }
.reminder-slot select, .reminder-slot input[type="text"], .reminder-slot input[type="date"] {
  display: block; width: 100%; margin-top: 0; margin-bottom: 8px;
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 9px;
  font-size: 13px; font-family: inherit; color: var(--text); background: var(--surface);
}
.reminder-slot .form-row { margin-bottom: 8px; gap: 8px; }
.reminder-slot .form-row input[type="text"], .reminder-slot .form-row input[type="date"] { margin-bottom: 0; flex: 1; }
.reminder-slot .form-row input[type="time"] {
  border: 1px solid var(--border); border-radius: 8px; padding: 8px 9px;
  font-size: 13px; font-family: inherit; color: var(--text); background: var(--surface); max-width: 120px;
}

.form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: #1e2333; color: #fff; padding: 10px 18px; border-radius: 8px;
  font-size: 14px; box-shadow: 0 4px 14px rgba(0,0,0,.3); z-index: 200;
}
.toast.error { background: var(--danger); color: #1e0a0a; }
.toast.hidden { display: none; }

/* --- prihlasovacie obrazovky --- */
.auth-container { display: flex; justify-content: center; padding-top: 60px; }
.auth-box {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 28px; width: 100%; max-width: 360px;
}
.auth-form h2 { font-size: 18px; margin-bottom: 16px; }
.auth-form .form-actions { justify-content: stretch; }
.auth-form .form-actions .btn { flex: 1; }
.auth-links { text-align: center; font-size: 13px; margin: 16px 0 0; color: var(--text-muted); }
.auth-links a { color: var(--primary); text-decoration: none; }
.auth-links a:hover { text-decoration: underline; }

/* --- hlavicka: info o prihlasenom pouzivatelovi --- */
.user-info { font-size: 13px; color: var(--text-muted); white-space: nowrap; }

/* --- modal "Moj ucet" --- */
.account-info { margin-bottom: 18px; }
.account-name { font-weight: 700; margin: 0 0 2px; }
.account-email { color: var(--text-muted); font-size: 13px; margin: 0; }

/* --- hlavne zalozky (Prehlad / Vozidla) --- */
.main-tabs { display: flex; gap: 6px; margin-bottom: 18px; border-bottom: 1px solid var(--border); }
.tab-btn {
  border: none; background: none; color: var(--text-muted); font-size: 14px; font-weight: 600;
  padding: 10px 4px; cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

/* --- vozidla --- */
.vehicle-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.vehicle-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 16px; box-shadow: var(--shadow);
}
.vehicle-card-title { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.vehicle-card-meta { font-size: 13px; color: var(--text-muted); line-height: 1.6; }
.vehicle-card-actions { display: flex; gap: 6px; margin-top: 10px; flex-wrap: wrap; }

#vehicle-form label, #vehicle-form input, #vehicle-form textarea {
  display: block; width: 100%; margin-top: 5px;
}
#vehicle-form label { font-size: 13px; font-weight: 600; color: var(--text-muted); margin-bottom: 12px; }
#vehicle-form input, #vehicle-form textarea {
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 10px;
  font-size: 14px; font-family: inherit; color: var(--text); background: var(--surface);
}

.hidden { display: none !important; }

@media (max-width: 760px) {
  .stat-cards { grid-template-columns: 1fr 1fr; }
  .dashboard-columns { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; gap: 0; }
  .topbar-inner .brand h1 { font-size: 17px; }
  .topbar-inner { flex-wrap: wrap; row-gap: 8px; }
  .topbar-actions { flex-wrap: wrap; justify-content: flex-end; }
  .user-info { display: none; }
}