:root {
  color-scheme: dark;
  --bg: #0b1220;
  --bg2: #101a2e;
  --card: #16203a;
  --border: #233150;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --accent: #0284c7;
  --accent-2: #0ea5e9;
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --radius: 16px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
}

#app {
  max-width: 720px;
  margin: 0 auto;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) 120px env(safe-area-inset-left);
}

button {
  font: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

input,
select,
textarea {
  font: inherit;
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
}

label {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

/* ---------- header ---------- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 4px 12px;
  gap: 8px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.brand small {
  display: block;
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

.header-actions {
  display: flex;
  gap: 8px;
}

.icon-btn {
  padding: 9px 12px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 14px;
}

.icon-btn:active {
  transform: scale(0.96);
}

/* ---------- auth ---------- */
.auth {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 70dvh;
  max-width: 400px;
  margin: 0 auto;
  gap: 16px;
}

.auth .logo {
  font-size: 26px;
  font-weight: 800;
  text-align: center;
}

.auth .logo span {
  color: var(--accent-2);
}

.auth p {
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.auth .dev {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  opacity: 0.8;
}

.hint {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
  opacity: 0.85;
}

.btn {
  padding: 13px 16px;
  border-radius: 12px;
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  text-align: center;
  transition: background 0.15s;
}

.btn:active {
  background: var(--accent-2);
}

.btn:disabled {
  opacity: 0.6;
}

.btn.secondary {
  background: var(--card);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn.danger {
  background: var(--red);
}

.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 14px;
}

/* ---------- tabs ---------- */
.tabs {
  display: flex;
  gap: 8px;
  padding: 4px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 14px;
}

.tabs button {
  flex: 1;
  padding: 11px;
  border-radius: 10px;
  font-weight: 600;
  color: var(--muted);
}

.tabs button.active {
  background: var(--accent);
  color: #fff;
}

/* ---------- stats ---------- */
.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.stat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.stat .num {
  font-size: 26px;
  font-weight: 800;
}

.stat .lbl {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

.stat.pending .num {
  color: var(--amber);
}
.stat.repair .num {
  color: var(--accent-2);
}
.stat.done .num {
  color: var(--green);
}

/* ---------- search + filter ---------- */
.search {
  margin-bottom: 10px;
}

.toolbar {
  display: flex;
  gap: 8px;
  align-items: flex-end;
}

.toolbar .filters {
  flex: 1;
  min-width: 0;
}

.engineer-select {
  flex: 0 0 auto;
  width: auto;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  max-width: 160px;
  border-radius: 999px;
}

.engineer-select:focus {
  color: var(--text);
}

.show-all {
  flex: 0 0 auto;
  margin-bottom: 10px;
}

.filters {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 10px;
  scrollbar-width: none;
}

.filters::-webkit-scrollbar {
  display: none;
}

.chip {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

.chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- case cards ---------- */
.cases {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.case-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.case-title {
  font-weight: 700;
  font-size: 15px;
}

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

.badge {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 10px;
  border-radius: 999px;
}

.badge.pending {
  background: rgba(245, 158, 11, 0.15);
  color: var(--amber);
}
.badge.under_repair {
  background: rgba(14, 165, 233, 0.15);
  color: var(--accent-2);
}
.badge.completed {
  background: rgba(34, 197, 94, 0.15);
  color: var(--green);
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  font-size: 12px;
  color: var(--muted);
}

.case-desc {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
}

.case-actions {
  display: flex;
  gap: 8px;
  padding-top: 4px;
}

/* ---------- fab ---------- */
.fab {
  position: fixed;
  bottom: calc(24px + env(safe-area-inset-bottom));
  right: 50%;
  transform: translateX(50%);
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 30px;
  font-weight: 700;
  box-shadow: 0 8px 24px rgba(2, 132, 199, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

/* ---------- sheet ---------- */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(2, 8, 18, 0.7);
  z-index: 60;
  display: flex;
  align-items: flex-end;
}

.sheet {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 18px;
  max-height: 88dvh;
  overflow-y: auto;
  animation: up 0.2s ease;
}

@keyframes up {
  from {
    transform: translateY(30px);
    opacity: 0.6;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.sheet h2 {
  font-size: 16px;
  margin-bottom: 14px;
}

.field {
  margin-bottom: 12px;
}

.status-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.status-radio {
  flex: 1;
  min-width: 90px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 13px;
  font-weight: 600;
  text-align: center;
  color: var(--muted);
}

.status-radio.on.pending {
  border-color: var(--amber);
  color: var(--amber);
}
.status-radio.on.under_repair {
  border-color: var(--accent-2);
  color: var(--accent-2);
}
.status-radio.on.completed {
  border-color: var(--green);
  color: var(--green);
}

.sheet-btns {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.sheet-btns .btn {
  flex: 1;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 40px 0;
  font-size: 14px;
}

/* ---------- all cases modal ---------- */
.all-sheet {
  max-height: 88dvh;
  overflow-y: auto;
}

.all-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.all-row {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#toast {
  position: fixed;
  bottom: calc(96px + env(safe-area-inset-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: #334155;
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  z-index: 100;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  max-width: 90vw;
  text-align: center;
}

#toast.show {
  opacity: 1;
}

.hidden {
  display: none !important;
}