/* SEO Tools - clean, minimal, dependency-free CSS (light mode, purple accent) */

:root {
  color-scheme: light;
  --color-bg: #faf9fc;
  --color-surface: #ffffff;
  --color-border: #e1dcee;
  --color-text: #221c2e;
  --color-muted: #6f6680;
  --color-primary: #7c3aed;
  --color-primary-dark: #6d28d9;
  --color-success: #15803d;
  --color-success-bg: #ecfdf3;
  --color-warning: #b45309;
  --color-warning-bg: #fffbeb;
  --color-error: #b91c1c;
  --color-error-bg: #fef2f2;
  --radius: 0px;
  --radius-button: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
}

header.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 1rem 1.5rem;
  text-align: center;
}

header.site-header h1 {
  margin: 0 0 0.5rem 0;
  font-size: 1.4rem;
}

nav.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: baseline;
  gap: 0.4rem 1.75rem;
}

.nav-group {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.15rem 0.9rem;
}

.nav-group-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

nav.site-nav a {
  color: var(--color-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: color 0.15s ease;
}

nav.site-nav a:hover {
  color: var(--color-primary);
}

nav.site-nav a.active {
  color: var(--color-primary);
}

.current-page {
  display: block;
  margin: 0.35rem 0 0.75rem 0;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.current-page strong {
  color: var(--color-text);
}

main.container {
  max-width: 1000px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.intro {
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.menu-section {
  margin-top: 2rem;
}

.menu-section:first-of-type {
  margin-top: 0;
}

.menu-section h2 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  margin: 0 0 0.75rem 0;
}

.tool-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 0.85rem;
}

.tool-list a {
  display: block;
  padding: 1.1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-button);
  color: var(--color-text);
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(34, 28, 46, 0.05);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.tool-list a strong {
  display: block;
  margin-bottom: 0.3rem;
}

.tool-list a .tool-desc {
  display: block;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.tool-list a:hover {
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.14);
  transform: translateY(-2px);
}

form.checker-form {
  display: flex;
  gap: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

form.checker-form input[type="text"] {
  flex: 1;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
}

form.checker-form button {
  padding: 0.65rem 1.4rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-button);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(124, 58, 237, 0.3);
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

form.checker-form button:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.35);
  transform: translateY(-1px);
}

form.checker-form button:active {
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(124, 58, 237, 0.3);
}

form.checker-form button:disabled {
  background: var(--color-muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.message {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
}

.message.error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.message.success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-top: 1.25rem;
}

.card h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

.vital-value {
  margin: 0.25rem 0 0.5rem 0;
  font-size: 1.6rem;
  font-weight: 700;
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.summary-line {
  margin: 0.25rem 0;
}

.summary-line .label {
  color: var(--color-muted);
  margin-right: 0.4rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}

table th,
table td {
  text-align: left;
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
  word-break: break-word;
}

table th {
  color: var(--color-muted);
  font-weight: 600;
}

.badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.badge.found,
.badge.ok {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge.missing,
.badge.broken {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.status-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  line-height: 1;
}

.status-icon.found {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.status-icon.not-found {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.level-badge {
  display: inline-block;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
}

.level-badge.good {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.level-badge.warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.level-badge.problem {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.rec-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.rec-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
}

.rec-list li:last-child {
  border-bottom: none;
}

.rec-message {
  margin-left: 0.5rem;
}

.warning-list {
  margin: 0.5rem 0 0 0;
  padding-left: 1.25rem;
  color: var(--color-error);
}

.hint {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.progress-wrap {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.progress-label {
  margin: 0 0 0.6rem 0;
  font-size: 0.9rem;
  color: var(--color-text);
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 35%;
  background: var(--color-primary);
  animation: progress-slide 1.1s ease-in-out infinite;
}

@keyframes progress-slide {
  0% { margin-left: -35%; }
  100% { margin-left: 100%; }
}

.progress-timer {
  margin: 0.5rem 0 0 0;
  color: var(--color-muted);
  font-size: 0.8rem;
}

footer.site-footer {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  padding: 2rem 1rem;
}

.footer-brand {
  margin: 0 0 0.5rem 0;
}

.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  color: var(--color-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

@media (max-width: 600px) {
  form.checker-form {
    flex-direction: column;
  }
}