:root {
  --bg: #f3f6fb;
  --bg-glow: #d7e4f4;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #059669;
  --accent-dim: #047857;
  --on-accent: #ffffff;
  --danger: #dc2626;
  --warn: #d97706;
  --warn-bg: rgba(217, 119, 6, 0.15);
  --accent-bg: rgba(5, 150, 105, 0.15);
  --danger-bg: rgba(220, 38, 38, 0.14);
  --overlay: rgba(243, 246, 251, 0.92);
  --border: #e2e8f0;
  --input-bg: #f8fafc;
  --error-bg: #fef2f2;
  --error-border: #fecaca;
  --error-text: #b91c1c;
  --mock-bg: linear-gradient(135deg, #fff7e6, #fef3c7);
  --mock-border: #f59e0b;
  --mock-text: #92400e;
  --mock-title: #78350f;
  --radius: 14px;
  color-scheme: light;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

html[data-theme="dark"] {
  --bg: #0b1220;
  --bg-glow: #152040;
  --card: #141e33;
  --text: #f4f7ff;
  --muted: #9aa8c7;
  --accent: #3ddc97;
  --accent-dim: #2bb87d;
  --on-accent: #042014;
  --danger: #ff6b6b;
  --warn: #ffb86b;
  --warn-bg: rgba(255, 184, 107, 0.15);
  --accent-bg: rgba(61, 220, 151, 0.15);
  --danger-bg: rgba(255, 107, 107, 0.18);
  --overlay: rgba(11, 18, 32, 0.92);
  --border: #24304d;
  --input-bg: #0d1528;
  --error-bg: #2a1520;
  --error-border: #7a3040;
  --error-text: #ffb4b4;
  --mock-bg: linear-gradient(135deg, #3a2e12, #2a2414);
  --mock-border: #8a6a20;
  --mock-text: #ffd98a;
  --mock-title: #ffe7b0;
  color-scheme: dark;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(ellipse at top, var(--bg-glow) 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 440px;
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
}

.header {
  text-align: center;
  padding: 1.25rem 0 0.5rem;
}

.theme-switch {
  display: inline-flex;
  margin: 0.75rem auto 0;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--input-bg);
}

.theme-switch-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  cursor: pointer;
}

.theme-switch-btn.active {
  background: var(--accent);
  color: var(--on-accent);
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo img {
  height: 42px;
  width: auto;
  display: block;
}

.tagline {
  color: var(--muted);
  margin: 0.35rem 0 0;
  font-size: 0.9rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.15rem;
  margin-bottom: 0.85rem;
}

.card.center { text-align: center; color: var(--muted); }

.card.error {
  border-color: var(--error-border);
  background: var(--error-bg);
  color: var(--error-text);
}

.hidden { display: none !important; }

.name-lookup-error {
  color: var(--error-text);
  min-height: 1.2em;
}

#name-section h1 {
  margin: 0 0 0.4rem;
  font-size: 1.25rem;
}

.station-card h1 {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
}

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

.rate-line { margin: 0.5rem 0 0; font-size: 0.92rem; }

label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
}

input, select {
  width: 100%;
  margin-top: 0.4rem;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  font-size: 1rem;
}

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
select:-webkit-autofill {
  -webkit-text-fill-color: var(--text);
  caret-color: var(--text);
  box-shadow: 0 0 0 1000px var(--input-bg) inset;
  transition: background-color 99999s ease-out;
}

select:disabled,
option:disabled {
  color: var(--muted);
}

.hint {
  display: block;
  margin-top: 0.35rem;
  font-weight: 400;
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
}

.amount-presets {
  display: flex;
  gap: 0.45rem;
  margin: 0.45rem 0 0.35rem;
  flex-wrap: wrap;
}

.amount-presets button {
  flex: 1;
  min-width: 4.5rem;
  padding: 0.55rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.amount-presets button.active {
  border-color: var(--accent);
  color: var(--accent);
}

.gun-row {
  display: flex;
  gap: 0.45rem;
  align-items: stretch;
}

.gun-row select { flex: 1; }

.btn-ghost {
  padding: 0 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--accent);
  font-size: 1.2rem;
  cursor: pointer;
}

.btn {
  width: 100%;
  padding: 0.95rem;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: var(--on-accent);
}

.btn.primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn.danger {
  background: transparent;
  border: 2px solid var(--danger);
  color: var(--danger);
}

.status-pill {
  display: inline-block;
  margin: 0.25rem 0 0;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: var(--accent-bg);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.status-pill.status-ok {
  background: var(--accent-bg);
  color: var(--accent);
}

.status-pill.status-warn {
  background: var(--warn-bg);
  color: var(--warn);
}

.status-pill.status-bad {
  background: var(--danger-bg);
  color: var(--danger);
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  margin-bottom: 0.2rem;
}

.stat-value {
  font-size: 1.15rem;
  font-weight: 700;
}

.done h2 { margin: 0 0 0.5rem; font-size: 1.1rem; }

.footer {
  text-align: center;
  padding-top: 1rem;
  font-size: 0.78rem;
}

.footer-links {
  display: block;
  margin-top: 0.35rem;
}

.footer-links a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-links a:hover {
  opacity: 0.85;
}

.topup-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.topup-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border, rgba(0, 0, 0, 0.08));
}

.topup-row:last-child {
  border-bottom: none;
}

.topup-row-meta {
  min-width: 0;
}

.topup-row-amount {
  font-weight: 700;
  color: var(--accent);
  white-space: nowrap;
}

.topup-row-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.35rem;
}

.btn.small {
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  width: auto;
}

.charger-issue {
  margin: 0 0 0.85rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--warn);
  background: var(--warn-bg);
  color: var(--warn);
  font-size: 0.9rem;
  line-height: 1.4;
}

.charger-issue strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--warn);
}

.mock-banner {
  margin: 0 0 0.85rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--mock-border);
  background: var(--mock-bg);
  color: var(--mock-text);
  font-size: 0.86rem;
  line-height: 1.4;
}

.mock-banner strong {
  display: block;
  margin-bottom: 0.2rem;
  color: var(--mock-title);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.btn.secondary {
  width: 100%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-weight: 600;
  cursor: pointer;
}

.btn.secondary:hover { border-color: var(--muted); }

.resume-prompt {
  margin-top: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border);
}

.resume-prompt h2 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.resume-prompt .muted {
  margin: 0 0 0.9rem;
  font-size: 0.88rem;
  line-height: 1.4;
}

.otp-actions { margin-bottom: 0.75rem; }

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  background: rgba(15, 23, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  box-shadow: 0 18px 50px rgba(15, 23, 42, 0.22);
}

.modal-card h2 {
  margin: 0 0 0.45rem;
  font-size: 1.15rem;
}

.modal-card .muted {
  margin: 0 0 1rem;
  line-height: 1.45;
}

.modal-actions {
  display: flex;
  gap: 0.6rem;
}

.modal-actions .btn { width: auto; flex: 1; }

.btn.danger-fill {
  background: var(--danger);
  border: none;
  color: #fff;
}

.btn.danger-fill:disabled,
.btn.danger:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.otp-actions .btn { margin-top: 0.6rem; }