/* WordLens – mobile-first, responsive */

:root {
  --bg: #0f0f12;
  --surface: #1a1a1f;
  --border: #2d2d35;
  --text: #e8e8ec;
  --text-muted: #9a9aa3;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-dim: rgba(245, 158, 11, 0.12);
  --error: #f87171;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

/* Navigation */
.container {
  width: min(100% - 2rem, 1080px);
  margin: 0 auto;
}

.site-nav {
  background: #121218;
  border-bottom: 1px solid var(--border);
}

.site-nav-inner {
  min-height: 48px;
  max-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.wordmark {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
  color: var(--text);
}

.nav-tagline {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.wordmark:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 8px;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

/* Header */
.header {
  padding: 1.5rem 1rem;
  text-align: center;
}

.title {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.privacy-icon {
  font-size: 1rem;
}

/* Main */
.main {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1rem 2rem;
}

/* Textarea input */
.input-section {
  margin-bottom: 1.5rem;
}

.textarea-wrapper {
  position: relative;
}

.text-input {
  display: block;
  width: 100%;
  min-height: 220px;
  padding: 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  resize: vertical;
  transition: border-color 0.2s;
  line-height: 1.6;
}

.text-input::placeholder {
  color: var(--text-muted);
}

.text-input:focus {
  outline: none;
  border-color: var(--accent);
}

.clear-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  padding: 0.3rem 0.65rem;
  font-size: 0.8rem;
  font-family: inherit;
  color: var(--text-muted);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.clear-btn:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

/* Stats grid */
.stats-section {
  margin-bottom: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
}

@media (max-width: 400px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1rem 0.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
  gap: 0.25rem;
  transition: border-color 0.2s;
}

.stat-card--accent {
  border-color: rgba(245, 158, 11, 0.35);
  background: var(--accent-dim);
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}

.stat-card--accent .stat-value {
  color: var(--accent);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Analysis section */
.analysis-section {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.analysis-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 560px) {
  .analysis-grid {
    grid-template-columns: 1fr 1.4fr;
  }
}

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

.analysis-title {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* Readability / Flesch */
.flesch-display {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.flesch-score {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
}

.flesch-label {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.flesch-bar-track {
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.5rem;
}

.flesch-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 0.3s ease, background 0.3s ease;
}

.flesch-scale {
  margin: 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Keyword table */
.keyword-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.keyword-table th {
  text-align: left;
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.keyword-table td {
  padding: 0.35rem 0.5rem;
  border-bottom: 1px solid rgba(45, 45, 53, 0.5);
  color: var(--text);
}

.keyword-table tr:last-child td {
  border-bottom: none;
}

.keyword-table td:first-child {
  font-weight: 500;
}

.keyword-table td:nth-child(2),
.keyword-table td:nth-child(3) {
  color: var(--text-muted);
  text-align: right;
}

/* About / SEO content */
#about {
  max-width: 640px;
  margin: 2.5rem auto 0;
  padding: 1.5rem 1.5rem 2rem;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.95rem;
}

#about h2 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
}

#about h2:first-of-type {
  margin-top: 0;
}

#about p {
  margin: 0.4rem 0 0.75rem;
}

#about ol,
#about ul {
  margin: 0.25rem 0 0.85rem;
  padding-left: 1.2rem;
}

#about li + li {
  margin-top: 0.25rem;
}

#about strong {
  color: var(--text);
}

#about .faq-item {
  margin-top: 0.75rem;
}

#about table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.75rem 0 0.5rem;
  font-size: 0.9rem;
}

#about th,
#about td {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
}

#about th {
  background: #13131a;
  color: var(--text);
  font-weight: 600;
}

#about tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.01);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 1rem 1.5rem 1.5rem;
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 0.25rem;
}

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

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

.footer-copy {
  margin: 0;
  text-align: center;
}