/* ========== myonlinetext.top — Teal / Writing theme ========== */
:root {
    --bg-primary: #0a1210;
    --bg-secondary: #0f1a17;
    --bg-tertiary: #152420;
    --bg-card: #1a2e28;
    --text-primary: #e8f5f0;
    --text-secondary: #94b8a8;
    --text-muted: #5f8a7a;
    --accent: #0d9488;
    --accent-light: #2dd4bf;
    --accent-dark: #0f766e;
    --accent-glow: rgba(13, 148, 136, 0.18);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #2a4a40;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
    --transition: 0.25s ease;
}

body.light {
    --bg-primary: #f0fdfa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ccfbf1;
    --bg-card: #ffffff;
    --text-primary: #134e4a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-glow: rgba(13, 148, 136, 0.12);
    --border: #99f6e4;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

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

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: Georgia, 'Times New Roman', Times, serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    transition: background var(--transition), color var(--transition);
    line-height: 1.65;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
    padding-bottom: env(safe-area-inset-bottom);
}

.top-bar, .tool-panel, .tool-card, .btn, .icon-btn, .category-tab, .mode-tab,
.search-input, .tool-input, .tool-textarea, .stat-card, footer {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

a { color: var(--accent-light); text-decoration: none; }
a:hover { text-decoration: underline; }

.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    padding-top: max(10px, env(safe-area-inset-top));
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.top-bar .logo {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 6px;
}

.top-bar .logo a { color: var(--accent); text-decoration: none; }

.top-actions { display: flex; gap: 6px; align-items: center; }

.icon-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 5px 10px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all var(--transition);
    min-width: 44px;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover { border-color: var(--accent); }
.lang-btn { font-weight: 600; font-size: 0.8rem; }

main {
    flex: 1;
    max-width: 720px;
    margin: 0 auto;
    padding: 24px 16px;
    width: 100%;
}

main.hub-main { max-width: 960px; }

.page-header {
    text-align: center;
    margin-bottom: 28px;
}

.page-header h1 {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 2rem;
    background: linear-gradient(135deg, #0d9488, #059669);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.page-header p { color: var(--text-secondary); font-size: 1rem; }

.hub-toolbar { display: flex; gap: 10px; margin-bottom: 20px; }

.search-input {
    flex: 1;
    min-width: 0;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 16px;
    color: var(--text-primary);
    outline: none;
}

.search-input:focus { border-color: var(--accent); }

.category-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.category-tab {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition);
    min-height: 44px;
}

.category-tab:hover { border-color: var(--accent); color: var(--text-primary); }
.category-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.table-wrap { overflow-x: auto; margin-top: 12px; }

.freq-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.freq-table th,
.freq-table td {
    padding: 10px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.freq-table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.freq-table td { color: var(--text-primary); }

.diff-panel {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px;
    font-family: Consolas, Monaco, monospace;
    font-size: 0.85rem;
    max-height: 360px;
    overflow: auto;
}

.diff-line { padding: 4px 8px; border-radius: 4px; margin-bottom: 2px; word-break: break-word; }
.diff-same { color: var(--text-secondary); }
.diff-added { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.diff-removed { background: rgba(239, 68, 68, 0.12); color: var(--danger); }
.diff-empty { color: var(--text-muted); font-style: italic; }

.category-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 24px;
    justify-content: center;
}

.category-links a {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-primary);
}

.category-links a:hover { border-color: var(--accent); text-decoration: none; }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: all var(--transition);
    text-decoration: none;
    color: inherit;
}

.tool-card:hover { border-color: var(--accent); box-shadow: var(--shadow); text-decoration: none; }

.tool-card .card-icon { font-size: 2rem; }
.tool-card .card-title { font-size: 1.05rem; font-weight: 700; }
.tool-card .card-desc { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.4; }
.tool-card .card-tag {
    display: inline-block;
    margin-top: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--accent-glow);
    padding: 2px 8px;
    border-radius: 10px;
    width: fit-content;
}

.no-results {
    color: var(--text-secondary);
    grid-column: 1 / -1;
    text-align: center;
    padding: 32px;
}

.tool-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    margin-bottom: 16px;
}

.form-group { margin-bottom: 16px; }

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 120px; }

.tool-input, .tool-select {
    width: 100%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    font-size: 1rem;
    color: var(--text-primary);
    outline: none;
}

.tool-input:focus, .tool-select:focus { border-color: var(--accent); }

.tool-textarea {
    width: 100%;
    min-height: 180px;
    background: var(--bg-tertiary);
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    font-size: 16px;
    font-family: inherit;
    color: var(--text-primary);
    outline: none;
    resize: vertical;
    line-height: 1.6;
}

.tool-textarea:focus { border-color: var(--accent); }
.tool-textarea.output { min-height: 140px; }

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.stat-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 14px;
    text-align: center;
}

.stat-card .stat-num { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.stat-card .stat-name {
    font-size: 0.72rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.4px;
    margin-top: 4px;
}

.stat-card.highlight {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.stat-card.highlight .stat-num { font-size: 1.8rem; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    min-height: 44px;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: transparent; border: 2px solid var(--accent); color: var(--accent); }
.btn-secondary:hover { background: var(--accent); color: #fff; }

.btn-group { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

.mode-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }

.mode-tab {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    min-height: 44px;
}

.mode-tab:hover { border-color: var(--accent); color: var(--text-primary); }
.mode-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.option-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    min-height: 44px;
}

.option-row input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }

.limit-list { display: flex; flex-direction: column; gap: 12px; margin-top: 16px; }

.limit-item {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
}

.limit-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.limit-bar {
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.limit-bar-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 3px;
    transition: width 0.2s ease;
    width: 0;
}

.limit-bar-fill.warn { background: var(--warning); }
.limit-bar-fill.over { background: var(--danger); }

.limit-remaining { font-size: 0.8rem; color: var(--text-muted); margin-top: 6px; }

.info-section { margin-top: 36px; }

.seo-static, .hub-seo-static {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}

.seo-static > h2, .hub-seo-static > h2, .hub-seo-static > h3 {
    font-family: Georgia, serif;
    font-size: 1.25rem;
    color: var(--accent-light);
    margin: 28px 0 12px;
}

.seo-static > h2:first-of-type, .hub-seo-static > h2:first-of-type { margin-top: 0; }

.seo-static p, .hub-seo-static p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.seo-static ol, .hub-popular-links {
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0 0 16px 1.25rem;
}

.seo-static ol li, .hub-popular-links li { margin-bottom: 6px; }

.faq-list { margin-top: 16px; }

.faq-item { border-bottom: 1px solid var(--border); padding: 12px 0; }

.faq-question {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.faq-answer { color: var(--text-secondary); font-size: 0.9rem; line-height: 1.7; }
.faq-answer p { margin: 0; }

.seo-disclaimer {
    font-size: 0.85rem;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--accent);
}

.related-tools { margin-top: 32px; }
.related-tools h3 { font-size: 1.1rem; color: var(--accent-light); margin-bottom: 12px; }
.related-links { display: flex; flex-wrap: wrap; gap: 10px; }

.related-link {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--text-primary);
}

.related-link:hover { border-color: var(--accent); text-decoration: none; }

footer {
    text-align: center;
    padding: 24px 16px;
    padding-bottom: max(24px, env(safe-area-inset-bottom));
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-copy { margin-bottom: 8px; }

.footer-sites, .footer-links {
    margin-top: 8px;
    font-size: 0.8rem;
    line-height: 1.8;
}

.footer-sites a, .footer-links a { color: var(--text-secondary); }

.legal-page { max-width: 680px; }
.legal-updated { font-size: 0.85rem; color: var(--text-muted); }
.legal-content { margin-top: 24px; }
.legal-section { margin-bottom: 24px; }
.legal-section h2 { font-size: 1.15rem; color: var(--accent-light); margin-bottom: 8px; }
.legal-section p { color: var(--text-secondary); line-height: 1.7; }
.legal-back { margin-top: 32px; text-align: center; }

.error-panel { text-align: center; padding: 32px 16px; }

.breadcrumb {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent); text-decoration: underline; }
.breadcrumb span[aria-hidden="true"] { margin: 0 6px; opacity: 0.5; }

.hub-all-tools { column-count: 1; }
@media (min-width: 640px) { .hub-all-tools { column-count: 2; } }
@media (min-width: 960px) { .hub-all-tools { column-count: 3; } }
.hub-all-tools li { break-inside: avoid; margin-bottom: 8px; }

.result-box {
    text-align: center;
    padding: 24px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin: 16px 0;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-light);
    word-break: break-word;
    line-height: 1.5;
}

.result-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 8px;
}

@media (max-width: 480px) {
    .page-header h1 { font-size: 1.6rem; }
    .tools-grid { grid-template-columns: 1fr; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
}