/* === base.css === */
:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #1e293b;
    --bg-secondary: #1e293b;
    --text-light: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --success-color: #22c55e;
    --error-color: #ef4444;
    --sidebar-width: 260px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-light);
    line-height: 1.6;
}

.app-container {
    display: flex;
    min-height: 100vh;
}


/* === topnav.css === */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 52px;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 100;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    cursor: pointer;
}

.logo-link .logo {
    font-size: 1.3rem;
}

.site-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-light);
}

.back-link {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.85rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.back-link:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.nav-right {
    display: flex;
    align-items: center;
}

.search-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.search-trigger:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.search-trigger svg {
    color: var(--text-muted);
    flex-shrink: 0;
}

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

.search-trigger kbd {
    font-size: 0.7rem;
    padding: 2px 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.side-nav {
    position: fixed;
    top: 80px;
    right: 12px;
    width: 160px;
    background: var(--bg-sidebar);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 0;
    z-index: 90;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

.side-nav-header {
    padding: 0 12px 10px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.side-nav-back {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 6px 8px;
    border-radius: 6px;
    transition: all 0.2s;
}

.side-nav-back:hover {
    color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
}

.side-nav-links {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 8px;
}

.side-nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.75rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.side-nav-link:hover {
    color: var(--text-light);
    background: rgba(99, 102, 241, 0.1);
}

.side-nav-icon {
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.85rem;
}


/* === main.css === */
.main-content {
    width: 100%;
    min-height: 100vh;
    padding-top: 52px;
    background: var(--bg-dark);
}

.has-side-nav .main-content {
    padding-right: 192px;
}

@media (max-width: 1200px) {
    .has-side-nav .main-content {
        padding-right: 20px;
    }
    .side-nav {
        display: none;
    }
}

.tool-header {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 16px;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
}

.tool-header-left {
    flex: 1;
}

.tool-header h1 {
    font-size: 1.3rem;
    margin-bottom: 6px;
}

.tool-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.tool-fav-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
    flex-shrink: 0;
}

.tool-fav-btn:hover {
    color: #fbbf24;
    border-color: #fbbf24;
    background: rgba(251, 191, 36, 0.1);
}

.tool-fav-btn.is-favorite {
    color: #fbbf24;
    border-color: #fbbf24;
}

.tool-fav-btn svg {
    width: 16px;
    height: 16px;
}

.tool-grid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px 32px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 16px;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-light);
}


/* === components.css === */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-dark);
    color: var(--text-light);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-group {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    flex-wrap: wrap;
}

textarea, input[type="text"], input[type="number"], input[type="password"], select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
    font-size: 0.95rem;
    font-family: inherit;
}

textarea {
    min-height: 150px;
    resize: vertical;
    font-family: 'Consolas', 'Courier New', monospace;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-muted);
}

.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.05);
}

.file-upload input[type="file"] {
    display: none;
}

.file-upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 12px 20px;
    border-radius: 8px;
    background: var(--bg-card);
    color: var(--text-light);
    border: 1px solid var(--border-color);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 9999;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--error-color);
}

.toast.info {
    border-left: 4px solid var(--primary-color);
}

.btn-copy {
    padding: 6px 12px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.btn-copy:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}


/* === home.css === */
.home-hero {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 20px 24px;
    text-align: center;
}

.home-hero-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-light);
}

.home-hero-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.home-hero-features {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.feature-icon {
    font-size: 0.9rem;
}

.home-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px 8px;
}

.home-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.category-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 24px 16px;
}

.home-section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}

.category-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px 12px;
}

.category-section h2 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 12px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 10px;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.tool-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.12);
}

.tool-card .tool-icon {
    font-size: 1.5rem;
    margin-bottom: 6px;
}

.tool-card h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-light);
    margin: 0 0 4px;
}

.tool-card p {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.3;
}


/* === search.css === */
.search-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    margin: 12px 16px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}
.search-trigger:hover {
    border-color: var(--primary-color);
    color: var(--text-light);
}
.search-trigger svg { flex-shrink: 0; }
.search-trigger span { flex: 1; font-size: 14px; }
.search-trigger kbd {
    padding: 2px 6px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 11px;
    font-family: inherit;
}

.search-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
}
.search-modal.active { display: flex; }
.search-container {
    width: 90%;
    max-width: 640px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}
.search-input-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.search-input-wrapper svg { color: var(--text-muted); flex-shrink: 0; }
.search-input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-light);
    font-size: 16px;
}
.search-input-wrapper input::placeholder { color: var(--text-muted); }
.search-kbd {
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 12px;
}
.search-results { max-height: 400px; overflow-y: auto; padding: 8px; }
.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}
.search-result-item:hover, .search-result-item.active { background: var(--bg-dark); }
.search-result-item .result-icon { font-size: 20px; width: 32px; text-align: center; }
.search-result-item .result-content { flex: 1; min-width: 0; }
.search-result-item .result-title { font-weight: 500; color: var(--text-light); }
.search-result-item .result-desc {
    font-size: 13px;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.search-result-item mark {
    background: var(--primary-color);
    color: white;
    padding: 0 2px;
    border-radius: 2px;
}
.search-empty { padding: 40px 20px; text-align: center; color: var(--text-muted); }
.search-footer {
    display: flex;
    gap: 16px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    font-size: 13px;
    color: var(--text-muted);
}
.search-footer kbd {
    padding: 2px 6px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 11px;
    margin-right: 4px;
}


/* === tools.css === */
.hash-output, .base-output, .case-output, .count-output, .color-output {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.base-input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}
.base-input-group input {
    flex: 2;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Consolas', 'Courier New', monospace;
}
.base-input-group select {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
}

.hash-item, .base-item, .case-item, .count-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.hash-item label, .base-item label, .case-item label, .count-item label {
    min-width: 80px;
    font-weight: 500;
}

.hash-item input, .base-item input, .case-item input {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Consolas', 'Courier New', monospace;
}

.count-item span {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.1rem;
}

.cron-input-group {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.cron-input-group input, .cron-input-group select {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
}

.cron-fields, .cron-next-runs {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cron-field-item, .cron-next-item {
    padding: 10px;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.regex-options {
    display: flex;
    gap: 20px;
    margin: 15px 0;
}

.regex-options label {
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.regex-results {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.regex-match {
    padding: 8px 12px;
    background: var(--bg-dark);
    border-radius: 6px;
    border-left: 3px solid var(--primary-color);
    font-family: 'Consolas', monospace;
}

.diff-output {
    max-height: 400px;
    overflow-y: auto;
    font-family: 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
}

.diff-stats {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}
.diff-stats .stat-card {
    flex: 1;
    min-width: 100px;
    padding: 10px;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    text-align: center;
}
.diff-stats .stat-num { font-size: 1.5rem; font-weight: 600; }
.diff-stats .stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

.diff-added {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    padding: 2px 4px;
    border-radius: 3px;
}

.diff-removed {
    background: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    padding: 2px 4px;
    border-radius: 3px;
    text-decoration: line-through;
}

.similarity-result, .date-diff-result, .ua-result, .qr-parse-result {
    margin-top: 20px;
}

.similarity-stats, .date-diff-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.sim-item, .diff-item, .ua-item, .comp-item {
    padding: 12px;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.sim-item label, .diff-item label, .ua-item label, .comp-item label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.sim-item span, .diff-item span, .ua-item span, .comp-item span {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-light);
}

.similarity-score {
    color: var(--primary-color) !important;
    font-size: 1.3rem !important;
}

.similarity-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-dark);
    border-radius: 6px;
    overflow: hidden;
    margin-top: 15px;
}

.similarity-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), #a855f7);
    border-radius: 6px;
    transition: width 0.5s ease;
}

.ua-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.compress-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.compress-ratio {
    color: var(--success-color) !important;
}

input[type="datetime-local"] {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
    font-size: 0.95rem;
}

#qr-canvas-container canvas {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: white;
}

.color-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.color-input-group input[type="color"] {
    width: 50px;
    height: 40px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

.color-preview {
    width: 100%;
    height: 80px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    margin-top: 15px;
}

.password-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.password-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: var(--bg-dark);
    border-radius: 8px;
    font-family: 'Consolas', monospace;
}

.uuid-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 15px;
}

.uuid-item {
    padding: 10px;
    background: var(--bg-dark);
    border-radius: 6px;
    font-family: 'Consolas', monospace;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.image-preview {
    text-align: center;
    margin-top: 15px;
}

.image-preview img {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.image-info {
    margin-top: 10px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.base64-output {
    word-break: break-all;
    padding: 15px;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    max-height: 200px;
    overflow-y: auto;
}

.json-display {
    padding: 15px;
    background: var(--bg-dark);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-family: 'Consolas', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
}

.hash-output {
    margin-top: 15px;
}

.hash-item {
    margin-bottom: 10px;
}

.uuid-options {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.uuid-options select, .uuid-options input {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-dark);
    color: var(--text-light);
}


/* === footer.css === */
.site-footer {
    padding: 20px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    margin-top: 40px;
}
.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 13px;
    color: var(--text-muted);
}
.footer-content a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s;
}
.footer-content a:hover { color: var(--primary-color); }
.footer-divider { opacity: 0.5; }
.footer-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
    margin-right: 4px;
}

/* AI Recommend */
.ai-recommend {
    margin-top: 15px;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}
.ai-recommend-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 10px;
}
.ai-recommend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 14px;
}
.ai-recommend-item:hover { background: var(--bg-dark); }
.ai-rec-icon { width: 24px; text-align: center; }
.ai-rec-label { color: var(--text-muted); flex: 1; }
.ai-rec-tool { color: var(--primary-color); font-weight: 500; }

/* Home sections */
.home-section { margin-bottom: 40px; }
.home-section-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-light);
}
.home-search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    margin: 20px auto 30px;
    max-width: 500px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}
.home-search-bar:hover { border-color: var(--primary-color); color: var(--text-light); }
.home-search-bar svg { flex-shrink: 0; }
.home-search-bar span { flex: 1; font-size: 15px; }
.home-search-bar kbd {
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 100;
    }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .tool-grid { grid-template-columns: 1fr; }
    .tools-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
}