:root {
  box-sizing: border-box;
  --navy: #12213b;
  --navy-deep: #0b1526;
  --plate: #f2ecd8;
  --plate-line: #cfc6a4;
  --steel: #4a6f92;
  --barn-red: #b5342c;
  --ink: #1a2233;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

*, *::before, *::after { box-sizing: inherit; }

html {
  scroll-padding-top: env(safe-area-inset-top, 0px);
}

body {
  margin: 0;
  min-height: 100%;
  background: var(--navy);
  color: var(--plate);
  font-family: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  line-height: 1.5;
}

.stripe {
  height: 10px;
  background: repeating-linear-gradient(
    90deg, var(--barn-red) 0 28px, var(--plate) 28px 56px
  );
}

.site-header {
  padding: 2rem 1.25rem 1rem;
  max-width: 640px;
  margin: 0 auto;
}

.site-header h1 {
  font-family: 'Oswald', 'Arial Narrow', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 7vw, 2.75rem);
  letter-spacing: 0.02em;
  margin: 0;
  color: var(--plate);
}

.tagline {
  margin: 0.35rem 0 0;
  color: var(--steel);
  font-size: 1.05rem;
  max-width: 32ch;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.settings {
  background: rgba(242, 236, 216, 0.08);
  border: 1px solid rgba(242, 236, 216, 0.25);
  border-radius: 14px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 1.25rem;
}

.settings summary {
  cursor: pointer;
  font-family: 'Oswald', sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  color: var(--plate);
}

.settings-body {
  margin-top: 1rem;
  font-size: 0.92rem;
}

.settings-body p { margin: 0 0 0.75rem; }
.settings-body a { color: #9fd0ff; }

.settings-body label {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  margin-bottom: 0.4rem;
}

.key-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.key-row input {
  flex: 1;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--plate-line);
  font-size: 0.95rem;
}

.ghost-btn {
  background: transparent;
  border: 1px solid rgba(242, 236, 216, 0.4);
  border-radius: 8px;
  color: var(--plate);
  padding: 0 0.75rem;
  cursor: pointer;
}

.settings-body .decode-btn {
  width: auto;
  padding: 0.55rem 1.25rem;
  font-size: 0.9rem;
  margin-top: 0;
}

.key-status {
  margin-top: 0.6rem !important;
  color: var(--steel);
  font-size: 0.85rem;
}

.panel {
  background: var(--plate);
  color: var(--ink);
  border-radius: 18px;
  padding: 1.5rem;
  box-shadow: 0 18px 40px rgba(0,0,0,0.35);
  border: 1px solid var(--plate-line);
}

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.tab {
  flex: 1;
  font-family: 'Oswald', sans-serif;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--plate-line);
  background: transparent;
  color: var(--navy);
  border-radius: 10px;
  cursor: pointer;
}

.tab.active {
  background: var(--navy);
  color: var(--plate);
  border-color: var(--navy);
}

.tab-panel { margin-bottom: 1.25rem; }

.capture-zone {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-height: 180px;
  border: 2px dashed var(--steel);
  border-radius: 12px;
  padding: 1rem;
  cursor: pointer;
  color: var(--steel);
  font-size: 0.98rem;
}

.capture-zone img {
  max-width: 100%;
  max-height: 260px;
  border-radius: 8px;
  display: block;
}

.tab-panel label:not(.capture-zone),
.state-label {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--navy);
  margin-bottom: 0.4rem;
}

#plate-text, #state-select {
  width: 100%;
  padding: 0.7rem 0.8rem;
  font-size: 1.1rem;
  font-family: 'Oswald', sans-serif;
  letter-spacing: 0.08em;
  border: 1px solid var(--plate-line);
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
}

#state-select {
  font-size: 0.95rem;
  letter-spacing: normal;
  margin-bottom: 1.25rem;
}

.decode-btn {
  width: 100%;
  padding: 0.85rem;
  margin-top: 0.5rem;
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.03em;
  color: var(--plate);
  background: var(--barn-red);
  border: none;
  border-radius: 10px;
  cursor: pointer;
}

.decode-btn:disabled { opacity: 0.65; cursor: default; }

.result {
  margin-top: 1.5rem;
  background: rgba(242, 236, 216, 0.08);
  border: 1px solid rgba(242, 236, 216, 0.25);
  border-radius: 14px;
  padding: 1.25rem 1.5rem;
}

.result h2 {
  font-family: 'Oswald', sans-serif;
  font-size: 1rem;
  letter-spacing: 0.05em;
  margin: 0 0 0.5rem;
  color: var(--steel);
}

#result-text {
  margin: 0;
  font-size: 1.1rem;
  white-space: pre-wrap;
}

.error {
  margin-top: 1.25rem;
  color: #ffd7d2;
  background: rgba(181, 52, 44, 0.25);
  border: 1px solid var(--barn-red);
  border-radius: 12px;
  padding: 0.9rem 1.1rem;
}

.site-footer {
  text-align: center;
  color: var(--steel);
  font-size: 0.85rem;
  padding: 0 1.25rem 2rem;
}

@media (min-width: 540px) {
  .panel { padding: 2rem; }
}