:root {
  --asphalt: #1F2426;
  --asphalt-2: #2B3234;
  --amber: #F2A900;
  --amber-dark: #C98A00;
  --cream: #F5F3EE;
  --ink: #1F2426;
  --ink-soft: #5B6366;
  --line: #DAD5C9;
  --danger: #B3452C;
  --success: #2D5F4C;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(31,36,38,0.08), 0 4px 12px rgba(31,36,38,0.06);
}

* { box-sizing: border-box; }

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

body {
  min-height: 100vh;
  padding-bottom: 3rem;
}

.topbar {
  background: var(--asphalt);
  color: var(--cream);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar-inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  padding-right: calc(1.25rem + env(safe-area-inset-right, 0px));
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.header-btn {
  background: var(--amber);
  color: var(--asphalt);
  border: none;
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  font: inherit;
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  white-space: nowrap;
}
.header-btn:hover { background: var(--amber-dark); }

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: inline-block;
  width: 26px;
  height: 26px;
  border-radius: 5px;
  object-fit: cover;
  flex: none;
}

.brand-text-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.version-tag {
  font-weight: 500;
  font-size: 0.7rem;
  color: var(--amber);
  opacity: 0.8;
  letter-spacing: 0;
}

.link-btn {
  background: none;
  border: none;
  color: var(--amber);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0.4rem 0.2rem;
}
.link-btn:hover { text-decoration: underline; }

.error-banner {
  background: var(--danger);
  color: #fff;
  font-size: 0.85rem;
  padding: 0.6rem 1.25rem;
  text-align: center;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31, 36, 38, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  z-index: 100;
}

.modal-overlay[hidden] {
  display: none;
}

.modal-box {
  background: var(--cream);
  border-radius: var(--radius);
  padding: 1.5rem;
  max-width: 26rem;
  width: 100%;
  box-shadow: var(--shadow);
}

.modal-box h2 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
}

.modal-body {
  margin: 0 0 1.2rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
  line-height: 1.5;
  white-space: pre-line;
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem 1.5rem;
}

.view h1 {
  font-size: 1.5rem;
  margin: 0 0 0.35rem;
  letter-spacing: -0.01em;
}

.subhead {
  color: var(--ink-soft);
  margin: 0 0 0.9rem;
  font-size: 0.95rem;
  line-height: 1.4;
}
.subhead strong {
  color: var(--ink);
  white-space: nowrap;
}

.callout {
  background: rgba(242, 169, 0, 0.1);
  border-left: 3px solid var(--amber-dark);
  border-radius: 0 8px 8px 0;
  padding: 0.85rem 1rem;
  margin: 0 0 1.5rem;
}
.callout p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.45;
  color: var(--ink);
}
.callout strong {
  color: var(--amber-dark);
}
.share-qr {
  display: block;
  width: 100%;
  max-width: 220px;
  height: auto;
  aspect-ratio: 1 / 1;
  margin: 0 auto 1.1rem;
  border-radius: 8px;
  background: #fff;
  padding: 0.6rem;
  border: 1.5px solid var(--line);
}
.share-qr svg {
  display: block;
  width: 100%;
  height: 100%;
}

.share-link {
  text-align: center;
  font-size: 0.85rem;
  color: var(--ink-soft);
  word-break: break-all;
  margin: 0 0 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.8rem;
}

.field > span, fieldset.field legend {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

fieldset.field {
  border: none;
  padding: 0;
  margin: 0 0 1.1rem;
}

.field-row {
  display: flex;
  gap: 0.9rem;
}
.field-row .field { flex: 1; min-width: 0; }

input[type="text"],
input[type="date"],
input[type="time"],
input[type="datetime-local"],
select,
textarea {
  font: inherit;
  padding: 0.7rem 0.8rem;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  width: 100%;
}

input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 1px;
}

.check-row {
  display: flex;
  gap: 1.4rem;
  padding: 0.2rem 0;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  cursor: pointer;
}
.checkbox input { width: 19px; height: 19px; accent-color: var(--amber-dark); }

.field-checkbox {
  margin-bottom: 0.8rem;
}

.error {
  color: var(--danger);
  font-size: 0.85rem;
  margin: 0.3rem 0 0;
}

.hint {
  color: var(--ink-soft);
  font-size: 0.85rem;
  margin: 0.2rem 0 0;
}

.plate-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: 0.6rem;
}

.plate-row {
  display: grid;
  grid-template-columns: 5.5rem 1fr 7.2rem;
  align-items: center;
  gap: 0.7rem;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 0.45rem 0.8rem;
}

.plate-row-label,
.truck-row-label {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.plate-flag {
  font-size: 0.75rem;
  color: var(--ink-soft);
  white-space: nowrap;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
}
.plate-flag input { width: 17px; height: 17px; accent-color: var(--amber-dark); flex: none; }

.plate-input:disabled {
  background: #F2F0E9;
  color: var(--ink-soft);
}

.plate-row .plate-input {
  width: 9ch;
  justify-self: center;
  text-align: center;
}

#loadNumber {
  width: 11ch;
  text-align: center;
}

#tripNumber {
  width: 12ch;
  text-align: center;
}

.state-block {
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.1rem 0.2rem;
  margin-bottom: 1.3rem;
  background: #fff;
}

.state-heading {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--amber-dark);
  margin: 0 0 1rem;
}

.vin-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.7rem;
}

.vin-row .plate-readout {
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-top: 0.25rem;
}

.actions {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.5rem;
}

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

.output-btn {
  flex: 1 1 auto;
  min-width: 9rem;
}

.btn {
  font: inherit;
  font-weight: 700;
  border-radius: var(--radius);
  padding: 0.65rem 1.1rem;
  border: 1.5px solid transparent;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.btn-primary {
  background: var(--asphalt);
  color: var(--cream);
  flex: 1;
}
.btn-primary:hover { background: #101415; }

.btn-secondary {
  background: var(--amber);
  color: var(--asphalt);
  flex: 1;
}
.btn-secondary:hover { background: var(--amber-dark); }

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn-ghost:hover { background: #EFEBE0; }

.email-output {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  min-height: 20rem;
  white-space: pre-wrap;
  margin-bottom: 1rem;
}

@media (max-width: 400px) {
  .field-row { flex-direction: column; gap: 0; }
  .plate-row {
    grid-template-columns: 5rem 1fr auto;
    gap: 0.4rem;
    padding: 0.6rem 0.6rem;
  }
  .plate-row .plate-input { width: 9ch; }
  .plate-row .plate-flag { font-size: 0.72rem; gap: 0.3rem; justify-content: flex-start; }
  .output-btn { flex: 1 1 100%; }

  .topbar-inner { padding: 0.7rem 1rem; padding-right: calc(1rem + env(safe-area-inset-right, 0px)); }
  .brand { gap: 0.45rem; }
  .brand-text { white-space: nowrap; font-size: 0.95rem; }
  .version-tag { font-size: 0.65rem; }
  .brand-text-group { flex-direction: column; align-items: flex-start; gap: 0.1rem; }
  .topbar-actions { gap: 0.5rem; }
  .header-btn { padding: 0.35rem 0.7rem; font-size: 0.78rem; }
  .link-btn { font-size: 0.85rem; }
}