:root {
  --bg: #f3f6fb;
  --card: #ffffff;
  --text: #14213d;
  --muted: #5b6473;
  --primary: #0b6bcb;
  --primary-dark: #0756a5;
  --danger: #d7263d;
  --success: #1f9d55;
  --success-dark: #167a42;
  --warning: #d98e04;
  --warning-dark: #b97800;
  --border: #d9e2ef;
  --soft: #eef4fb;
  --shadow: 0 10px 28px rgba(10, 32, 68, 0.08);
  --radius: 18px;
}

* { box-sizing: border-box; }

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

body {
  min-height: 100vh;
}

button, input, select {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(243, 246, 251, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(217, 226, 239, 0.75);
}

.topbar-inner {
  max-width: 720px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-weight: 800;
  font-size: 1.05rem;
}

.subtitle {
  color: var(--muted);
  font-size: 0.88rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 16px;
  margin: 14px 0;
}

.card h2,
.card h3 {
  margin: 0 0 8px 0;
}

.row {
  display: flex;
  gap: 12px;
}

.row.wrap {
  flex-wrap: wrap;
}

.row > * {
  flex: 1;
}

.label {
  display: block;
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.input,
.select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #fff;
  padding: 14px 14px;
  min-height: 50px;
}

.input:focus,
.select:focus {
  outline: 2px solid rgba(11, 107, 203, 0.18);
  border-color: var(--primary);
}

.plate-input {
  font-size: 2rem;
  letter-spacing: 0.16rem;
  text-align: center;
  font-weight: 800;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
}

.helper {
  color: var(--muted);
  font-size: 0.86rem;
  margin-top: 6px;
}

.btn {
  border: 0;
  border-radius: 14px;
  padding: 14px 16px;
  font-weight: 800;
  min-height: 50px;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:active {
  background: var(--primary-dark);
}

.btn-secondary {
  background: var(--soft);
  color: var(--text);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-success {
  background: var(--success);
  color: #fff;
}

.pill {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 700;
}

.pill-warning {
  background: rgba(217, 142, 4, 0.14);
  color: #8b5d00;
}

.pill-success {
  background: rgba(31, 157, 85, 0.14);
  color: #126a39;
}

.pill-danger {
  background: rgba(215, 38, 61, 0.12);
  color: #9d1b2c;
}

.alert {
  border-radius: 14px;
  padding: 12px 14px;
  margin-top: 12px;
  font-size: 0.95rem;
}

.alert-warning {
  background: rgba(217, 142, 4, 0.12);
  color: #6c4a00;
}

.alert-success {
  background: rgba(31, 157, 85, 0.12);
  color: #0f6033;
}

.alert-danger {
  background: rgba(215, 38, 61, 0.12);
  color: #8b1424;
}

.alert-info {
  background: rgba(11, 107, 203, 0.10);
  color: #084d92;
}

.kbd-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}

.kbd-btn {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text);
  border-radius: 16px;
  min-height: 68px;
  font-size: 1.45rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(10, 32, 68, 0.05);
  cursor: pointer;
}

.kbd-btn:hover {
  background: #f8fbff;
}

.kbd-btn:active {
  transform: scale(0.985);
}

.kbd-wide {
  grid-column: span 2;
}

/* Fix action button colors inside keypad */
.kbd-btn.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.kbd-btn.btn-primary:hover,
.kbd-btn.btn-primary:active {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
}

.kbd-btn.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}

.kbd-btn.btn-success:hover,
.kbd-btn.btn-success:active {
  background: var(--success-dark);
  border-color: var(--success-dark);
  color: #fff;
}

.kbd-btn.btn-secondary {
  background: var(--soft);
  color: var(--text);
  border-color: var(--border);
}

.kbd-btn.btn-secondary:hover,
.kbd-btn.btn-secondary:active {
  background: #dfeaf8;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat-box {
  background: var(--soft);
  border-radius: 16px;
  padding: 14px;
}

.stat-box .num {
  font-size: 1.7rem;
  font-weight: 800;
}

.stat-box .desc {
  color: var(--muted);
  font-size: 0.88rem;
}

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 540px;
}

th, td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 0.93rem;
}

th {
  color: var(--muted);
  font-weight: 700;
}

.center {
  text-align: center;
}

.muted {
  color: var(--muted);
}

.space-top {
  margin-top: 12px;
}

.hidden {
  display: none !important;
}

@media (max-width: 480px) {
  .container {
    padding: 12px;
  }

  .card {
    padding: 14px;
    border-radius: 16px;
  }

  .plate-input {
    font-size: 1.75rem;
    letter-spacing: 0.12rem;
  }

  .kbd-btn {
    min-height: 64px;
    font-size: 1.3rem;
  }

  .btn {
    min-height: 48px;
  }
}

@media (min-width: 721px) {
  .container {
    padding: 24px;
  }

  .topbar-inner {
    padding: 16px 24px;
  }
}