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

:root {
  --teal-dark: #1a3e5f;
  --teal-mid: #24577a;
  --accent: #ffdd57;
  --bg: #f2f5f9;
  --text: #222;
  --text-muted: #5a6a7a;
  --card-bg: #fff;
  --border: #d0d8e0;
  --badge-active: #2e7d32;
  --badge-pending: #b8860b;
  --badge-resolved: #546e7a;
  --badge-recalled: #8b2252;
  --badge-unresolved: #bf360c;
  --error-bg: #fff3f0;
  --error-border: #d45030;
}

html {
  font-size: 16px;
}

body {
  font-family: 'Segoe UI', 'SF Pro Text', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.5;
}

/* Header */
.site-header {
  width: 100%;
  background: linear-gradient(135deg, var(--teal-dark), var(--teal-mid));
  padding: 2rem 1rem 1.5rem;
  text-align: center;
  color: #e5eef6;
  border-bottom: 3px solid var(--accent);
}

.seal-link {
  display: inline-block;
}

.seal {
  width: 120px;
  height: auto;
  opacity: 0.92;
  margin-bottom: 0.75rem;
  border-radius: 50%;
  transition: opacity 0.15s;
}

.seal-link:hover .seal {
  opacity: 1;
}

.site-header h1 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.45em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  word-spacing: 0.3em;
}

.site-header .subtitle {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.55;
  font-weight: 400;
}

/* Main content area */
.main {
  width: 100%;
  max-width: 600px;
  padding: 1.25rem 0.75rem;
  flex: 1;
}

/* Lookup form */
.lookup-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

.lookup-section label {
  display: block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.input-row {
  display: flex;
  gap: 0.5rem;
}

.input-row input {
  flex: 1;
  padding: 0.65rem 0.75rem;
  font-size: 1.05rem;
  font-family: 'Consolas', 'Courier New', monospace;
  border: 1px solid var(--border);
  border-radius: 4px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: #fafbfc;
  -webkit-appearance: none;
}

.input-row input:focus {
  outline: none;
  border-color: var(--teal-mid);
  box-shadow: 0 0 0 2px rgba(36, 87, 122, 0.15);
}

.input-row input::placeholder {
  text-transform: none;
  letter-spacing: normal;
  color: #aab4be;
  font-size: 0.85rem;
}

.btn-verify {
  padding: 0.65rem 1.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--teal-dark);
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  white-space: nowrap;
  -webkit-appearance: none;
  touch-action: manipulation;
}

.btn-verify:hover {
  background: var(--teal-mid);
}

.btn-verify:active {
  transform: scale(0.97);
}

.btn-verify:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Processing state */
.processing {
  text-align: center;
  padding: 2rem 1rem;
  margin-top: 1rem;
}

.processing-text {
  font-family: 'Consolas', 'Courier New', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
}

.processing-bar {
  width: 200px;
  height: 3px;
  background: var(--border);
  margin: 0.75rem auto 0;
  border-radius: 2px;
  overflow: hidden;
}

.processing-bar-fill {
  width: 0;
  height: 100%;
  background: var(--teal-mid);
  animation: fill 1.6s ease-in-out forwards;
}

@keyframes fill {
  0% { width: 0; }
  60% { width: 85%; }
  100% { width: 100%; }
}

/* Result card */
.result-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-top: 1rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  overflow: hidden;
  animation: fadeUp 0.3s ease-out;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-header {
  background: linear-gradient(135deg, var(--teal-dark), var(--teal-mid));
  color: #e5eef6;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.result-header h2 {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.result-body {
  padding: 0.75rem 1rem;
}

.result-field {
  padding: 0.5rem 0;
  border-bottom: 1px solid #eef1f5;
  display: flex;
  gap: 0.5rem;
  opacity: 0;
  animation: revealField 0.25s ease-out forwards;
}

.result-field:last-child {
  border-bottom: none;
}

.result-field .field-label {
  flex: 0 0 110px;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  padding-top: 0.2rem;
}

.result-field .field-value {
  flex: 1;
  font-size: 0.85rem;
}

.field-value.mono {
  font-family: 'Consolas', 'Courier New', monospace;
  letter-spacing: 0.04em;
}

@keyframes revealField {
  from {
    opacity: 0;
    transform: translateX(-4px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Badges */
.badge {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.15rem 0.45rem;
  border-radius: 3px;
  color: #fff;
}

.badge-active { background: var(--badge-active); }
.badge-pending { background: var(--badge-pending); }
.badge-resolved { background: var(--badge-resolved); }
.badge-recalled { background: var(--badge-recalled); }
.badge-unresolved { background: var(--badge-unresolved); }

.flag-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.flag-tag {
  display: inline-block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  background: #e8ecf0;
  color: var(--text-muted);
}

/* Notes field */
.field-notes {
  font-style: italic;
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Result footer */
.result-footer {
  padding: 0.6rem 1rem;
  background: #f8f9fb;
  border-top: 1px solid #eef1f5;
  font-size: 0.65rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Error/not found state */
.not-found {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  border-radius: 6px;
  padding: 1.25rem;
  margin-top: 1rem;
  animation: fadeUp 0.3s ease-out;
}

.not-found h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--error-border);
  margin-bottom: 0.4rem;
}

.not-found p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.not-found .fine-print {
  font-size: 0.7rem;
  font-style: italic;
}

/* Close file button */
.btn-close-file {
  display: block;
  margin: 0.75rem auto 0;
  padding: 0.5rem 1.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  font-family: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  touch-action: manipulation;
  transition: border-color 0.15s, color 0.15s;
}

.btn-close-file:hover {
  border-color: var(--teal-mid);
  color: var(--teal-mid);
}

.btn-close-file:active {
  transform: scale(0.97);
}

/* Site footer */
.site-footer {
  width: 100%;
  text-align: center;
  padding: 1.25rem 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.site-footer a {
  color: var(--teal-mid);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* Subtle scan-line overlay on result card */
.result-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0,0,0,0.015) 3px,
    rgba(0,0,0,0.015) 4px
  );
  pointer-events: none;
  z-index: 1;
}

.result-card {
  position: relative;
}

/* Responsive */
@media (max-width: 480px) {
  .site-header {
    padding: 1.25rem 0.75rem 1rem;
  }

  .seal {
    width: 88px;
  }

  .site-header h1 {
    font-size: 0.85rem;
    letter-spacing: 0.35em;
  }

  .site-header .subtitle {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .main {
    padding: 1rem 0.5rem;
  }

  .lookup-section {
    padding: 1rem;
  }

  .input-row {
    flex-direction: column;
    gap: 0.4rem;
  }

  .input-row input {
    font-size: 1.1rem;
    padding: 0.75rem;
    text-align: center;
  }

  .btn-verify {
    width: 100%;
    padding: 0.75rem;
    font-size: 0.85rem;
  }

  .result-header {
    padding: 0.6rem 0.75rem;
  }

  .result-body {
    padding: 0.5rem 0.75rem;
  }

  .result-field {
    flex-direction: column;
    gap: 0.1rem;
    padding: 0.4rem 0;
  }

  .result-field .field-label {
    flex: none;
    font-size: 0.55rem;
  }

  .result-field .field-value {
    font-size: 0.8rem;
  }

  .result-footer {
    padding: 0.5rem 0.75rem;
    font-size: 0.6rem;
  }

  .not-found {
    padding: 1rem;
  }

  .site-footer {
    padding: 1rem 0.5rem;
    font-size: 0.68rem;
  }
}