:root {
  color-scheme: light;
  --bg-primary: #f4f8f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #ecf4ee;
  --text-primary: #1f2a22;
  --text-secondary: #4d5d53;
  --accent: #1f7a46;
  --accent-hover: #19623a;
  --success: #2f855a;
  --error: #c53030;
  --warning: #b7791f;
  --border: #c9d8cc;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 2px 4px rgba(31, 42, 34, 0.08);
  --shadow-md: 0 4px 12px rgba(31, 42, 34, 0.1);
  --shadow-lg: 0 10px 22px rgba(31, 42, 34, 0.14);
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --gradient-hero: linear-gradient(135deg, #f5fbf7 0%, #e6f5ea 55%, #d7efdf 100%);
}

* {
  box-sizing: border-box;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Inter, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 90% -10%, rgba(31, 122, 70, 0.1), transparent 40%),
    radial-gradient(circle at -10% 15%, rgba(47, 133, 90, 0.1), transparent 35%),
    var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 20px 64px;
}

.app-shell {
  animation: fade-in-up 360ms var(--transition-normal) both;
}

header {
  margin-bottom: 20px;
  background: var(--gradient-hero);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: 22px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.brand-mark {
  width: 52px;
  height: 52px;
  flex: 0 0 52px;
}

.brand-wordmark {
  display: flex;
  align-items: baseline;
  gap: 2px;
  line-height: 1;
}

.brand-main {
  font-size: 1.85rem;
  font-weight: 700;
  color: #1a1a2e;
  letter-spacing: -0.02em;
}

.brand-accent {
  font-size: 1.42rem;
  font-weight: 300;
  color: #10b981;
  letter-spacing: -0.01em;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
}

h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
}

.subtitle {
  color: var(--text-secondary);
  margin-top: 0;
  max-width: 65ch;
  font-size: 0.95rem;
  line-height: 1.6;
}

.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.card-heading-row h2 {
  margin: 0;
}

.mode-indicator {
  margin-bottom: 0;
}

.mode-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 6px 10px;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.mode-byok {
  color: #165f36;
  border-color: #7fba93;
  background: #e8f7ee;
}

.mode-granted {
  color: #1f4d88;
  border-color: #95b5dc;
  background: #eaf2fb;
}

.mode-none {
  color: var(--text-secondary);
}

form {
  display: flex;
  gap: 12px;
}

input,
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: #fff;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus,
button:focus,
a:focus,
summary:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(31, 122, 70, 0.16);
}

textarea {
  resize: vertical;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  min-height: 40px;
  transition: transform var(--transition-fast), background-color var(--transition-fast), box-shadow var(--transition-fast);
}

button:hover {
  background: var(--accent-hover);
  box-shadow: var(--shadow-sm);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

button.secondary {
  background: #dde8df;
  color: var(--text-primary);
}

.row,
.actions {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.actions {
  flex-wrap: wrap;
}

.key-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.row label {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.status {
  margin-top: 10px;
  font-size: 0.86rem;
  line-height: 1.5;
  color: var(--text-secondary);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.status::before {
  content: '';
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  margin-top: 1px;
  background-size: 18px 18px;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0;
}

.status[data-type='info']::before {
  opacity: 1;
  background-image: url('icons/key.svg');
}

.status[data-type='success'] {
  color: var(--success);
}

.status[data-type='success']::before {
  opacity: 1;
  background-image: url('icons/check-circle.svg');
}

.status[data-type='error'] {
  color: var(--error);
}

.status[data-type='error']::before {
  opacity: 1;
  background-image: url('icons/x-circle.svg');
}

.status[data-type='warning'] {
  color: var(--warning);
}

.status[data-type='warning']::before {
  opacity: 1;
  background-image: url('icons/alert-triangle.svg');
}

.analysis {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.analysis .item {
  padding: 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  min-width: 0;
  overflow: hidden;
}

.social-tags .subsection {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.social-tags .subheader {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  font-weight: 600;
}

.social-tags .ok {
  color: var(--success);
  font-size: 0.82rem;
}

.social-tags .warn {
  color: var(--warning);
  font-size: 0.82rem;
}

.social-tags table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.86rem;
}

.social-tags th,
.social-tags td {
  text-align: left;
  vertical-align: top;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
}

.social-tags th {
  width: 180px;
  color: var(--text-secondary);
  font-weight: 600;
}

.social-tags td code {
  font-size: 0.82rem;
}

.faq-card .faq-item {
  margin-top: 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  overflow: hidden;
}

.faq-card summary {
  cursor: pointer;
  padding: 12px;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 38px;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-card summary::after {
  content: '';
  position: absolute;
  right: 12px;
  top: 50%;
  width: 16px;
  height: 16px;
  transform: translateY(-50%);
  background-image: url('icons/chevron-down.svg');
  background-repeat: no-repeat;
  background-position: center;
  background-size: 16px 16px;
  transition: transform var(--transition-fast);
}

.faq-card details[open] summary::after {
  transform: translateY(-50%) rotate(180deg);
}

.faq-content {
  border-top: 1px solid var(--border);
  padding: 12px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.site-footer {
  margin-top: 20px;
  position: relative;
  left: 50%;
  right: 50%;
  margin-left: -50vw;
  margin-right: -50vw;
  width: 100vw;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.footer-inner {
  max-width: 1920px;
  margin: 0 auto;
  padding: 18px 60px 16px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 4px 0 18px;
  border-bottom: 1px solid #d7e2da;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.footer-logo {
  width: 34px;
  height: 34px;
  display: block;
}

.footer-brand-text {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-social {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-left: 4px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--accent);
}

.footer-social-icon {
  width: 20px;
  height: 20px;
  display: block;
}

.footer-nav a,
.footer-cta a {
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.1;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--transition-fast);
}

.footer-nav a:hover,
.footer-cta a:hover {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.footer-bottom {
  margin-top: 14px;
  text-align: center;
}

.footer-bottom p {
  margin: 0 0 6px;
  color: var(--text-secondary);
  font-size: 0.82rem;
}

.footer-bottom p:last-child {
  margin-bottom: 0;
}

.footer-bottom a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

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

.image-preview {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.image-preview img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.analysis .item img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.muted {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.hosted-url {
  margin-top: 10px;
  word-break: break-all;
}

.hosted-url a,
.download-link {
  color: #1f4d88;
  text-decoration: none;
  font-weight: 600;
}

.download-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 0.85rem;
}

.optimize-comparison {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 10px 12px;
}

.optimize-comparison .comparison-title {
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.optimize-comparison table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.optimize-comparison th,
.optimize-comparison td {
  text-align: left;
  padding: 6px 4px;
  border-bottom: 1px dashed var(--border);
}

.optimize-comparison th {
  color: var(--text-secondary);
  font-weight: 600;
}

.optimize-comparison tr:last-child td {
  border-bottom: none;
}

.hidden {
  display: none;
}

.style-notes {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.style-notes ul {
  margin: 6px 0 0 16px;
}

.brand-context {
  margin-top: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fff;
  padding: 10px 12px;
}

.brand-context-title {
  margin-bottom: 8px;
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.brand-context table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.brand-context th,
.brand-context td {
  text-align: left;
  vertical-align: top;
  padding: 6px 4px;
  border-bottom: 1px dashed var(--border);
}

.brand-context tr:last-child th,
.brand-context tr:last-child td {
  border-bottom: none;
}

.brand-context th {
  width: 130px;
  color: var(--text-secondary);
  font-weight: 600;
}

.brand-context td code {
  margin-right: 6px;
  font-size: 0.8rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.accordion {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  margin-top: 8px;
}

.accordion-subtle {
  background: linear-gradient(135deg, #f0fdf4 0%, #ecfdf5 100%);
  border: 1px solid #d1fae5;
}

.accordion summary {
  list-style: none;
  cursor: pointer;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 500;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.key-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #d1fae5;
  color: #6b7280;
  font-size: 12px;
  transition: all 0.2s ease;
}

.key-icon.active {
  background: #10b981;
  color: white;
}

.accordion-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.key-preview {
  font-family: monospace;
  font-size: 0.85rem;
  color: #9ca3af;
}

.chevron {
  font-size: 1.2rem;
  color: #9ca3af;
  transition: transform 0.2s ease;
}

.accordion[open] .chevron {
  transform: rotate(90deg);
}

.accordion-body {
  border-top: 1px solid #d1fae5;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: white;
}

.key-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.key-row input {
  flex: 1;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 10px 12px;
  font-family: monospace;
}

.icon-btn {
  background: transparent;
  border: none;
  width: 36px;
  height: 36px;
  padding: 8px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: background 0.2s ease;
}

.icon-btn:hover {
  background: #f3f4f6;
}

.icon-btn-svg {
  width: 18px;
  height: 18px;
  display: block;
}

.save-btn {
  align-self: flex-start;
  margin-top: 4px;
}

.small {
  font-size: 0.8rem;
}

.progress {
  margin-top: 8px;
  height: 8px;
  border-radius: 999px;
  background: #d9e9de;
  overflow: hidden;
  border: 1px solid #c2d7c8;
}

.progress .bar {
  width: 38%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #2f855a, #4cab74, #2f855a);
  background-size: 200% 100%;
  animation: shimmer 1100ms linear infinite;
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .container {
    padding: 16px 14px 38px;
  }

  .brand-main {
    font-size: 1.35rem;
  }

  .brand-accent {
    font-size: 1.05rem;
  }

  form,
  .row,
  .key-row,
  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  button,
  input,
  select,
  textarea {
    width: 100%;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }

  .card-heading-row {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .footer-inner {
    padding: 18px 16px 16px;
  }

  .footer-nav {
    flex-wrap: wrap;
    gap: 12px 16px;
  }

  .footer-cta {
    justify-content: flex-start;
  }

  .footer-social {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }
}

/* Key Notice */
.key-notice {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: linear-gradient(135deg, #fef3c7 0%, #fef9c3 100%);
  border: 1px solid #fcd34d;
  border-radius: 8px;
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: #92400e;
}

.key-notice.hidden {
  display: none;
}

.key-notice .notice-icon {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 18px;
}

.notice-icon-svg {
  width: 18px;
  height: 18px;
  display: block;
}

.key-notice a {
  color: #b45309;
  font-weight: 500;
}