/* TrueAITools Modern Scoped CSS Design System */
:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #0f172a;
    --bg-card: #131d31;
    --bg-card-hover: #17233c;
    --bg-elevated: #1e293b;

    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.12);

    --accent: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);

    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.12);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.12);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);

    --border: #1e293b;
    --border-hover: #334155;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-pill: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 30px rgba(0, 0, 0, 0.4);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Reset & Box Sizing */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Layout Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

/* Gradient Text */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Site Header */
.site-header {
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1.5rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.brand-logo-img {
    max-height: 38px;
    max-width: 180px;
    width: auto;
    height: auto;
    object-fit: contain;
    display: block;
}

.logo-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: #fff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.4);
}

.logo-text span {
    color: var(--primary);
}

/* Header Search */
.header-search {
    flex: 1;
    max-width: 480px;
    display: none;
}

@media (min-width: 900px) {
    .header-search {
        display: block;
    }
}

.search-form {
    position: relative;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-form input {
    width: 100%;
    padding: 0.65rem 1rem 0.65rem 2.6rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-form input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.nav-link:hover, .nav-link.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

/* Navigation Dropdown Menu */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.nav-dropdown-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.nav-dropdown-toggle:hover,
.nav-dropdown:hover .nav-dropdown-toggle,
.nav-dropdown.open .nav-dropdown-toggle {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.dropdown-chevron {
    font-size: 0.7rem;
    transition: transform 0.2s ease;
    display: inline-block;
    opacity: 0.7;
}

.nav-dropdown:hover .dropdown-chevron,
.nav-dropdown.open .dropdown-chevron {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 210px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.5);
    padding: 0.5rem;
    display: none;
    z-index: 1000;
    backdrop-filter: blur(12px);
    margin-top: 4px;
}

/* Invisible hover bridge to prevent hover loss between toggle and menu */
.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 0;
    right: 0;
    height: 10px;
    background: transparent;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu,
.nav-dropdown.open .nav-dropdown-menu {
    display: block;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.6rem 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    color: #fff;
    background: rgba(99, 102, 241, 0.15);
}

.nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.nav-btn-outline {
    background: transparent;
    border: 1px solid var(--border-hover);
    color: var(--text-secondary);
}

.nav-btn-outline:hover {
    color: #fff;
    border-color: var(--primary);
    background: var(--primary-light);
}

.nav-btn-primary {
    background: var(--primary);
    color: #fff;
    border: 1px solid transparent;
}

.nav-btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* Menu Toggle (Mobile) */
.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 32px;
    height: 24px;
    position: relative;
    flex-direction: column;
    justify-content: space-between;
}

.menu-toggle span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.2s ease;
}

@media (max-width: 899px) {
    .menu-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border);
        padding: 1.5rem;
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
        display: none;
        box-shadow: var(--shadow-lg);
    }
    .nav-menu.open {
        display: flex;
    }
    .nav-dropdown {
        width: 100%;
    }
    .nav-dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 0.65rem 0.75rem;
    }
    .nav-dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        background: rgba(255, 255, 255, 0.03);
        padding-left: 0.5rem;
        margin-top: 0.25rem;
        border-radius: var(--radius-sm);
    }
    .nav-dropdown.open .nav-dropdown-menu {
        display: block;
    }
}

/* Site Main */
.site-main {
    flex: 1;
}

/* Alerts */
.alert {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.alert-success {
    background: var(--success-bg);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6ee7b7;
}

.alert-error {
    background: var(--danger-bg);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-close {
    margin-left: auto;
    background: transparent;
    border: none;
    color: inherit;
    font-size: 1.25rem;
    cursor: pointer;
}

/* Hero Section */
.hero-section {
    padding: 4.5rem 0 3.5rem;
    background: radial-gradient(circle at 50% 0%, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
    text-align: center;
}

.hero-container {
    max-width: 860px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.35rem 0.85rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-pill);
    font-size: 0.825rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-badge-pill {
    background: var(--primary);
    color: #fff;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-pill);
    font-weight: 700;
    font-size: 0.75rem;
}

.hero-title {
    font-size: 2.5rem;
    letter-spacing: -1px;
    margin-bottom: 1.25rem;
    line-height: 1.15;
}

@media (min-width: 768px) {
    .hero-title { font-size: 3.5rem; }
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto 2.5rem;
    line-height: 1.6;
}

/* Hero Search Box */
.hero-search-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-lg);
    padding: 0.75rem;
    box-shadow: var(--shadow-lg);
    margin-bottom: 3rem;
}

.hero-search-form {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 0.5rem 0.75rem 0.5rem 1rem;
}

.hero-search-icon {
    font-size: 1.25rem;
}

.hero-search-input {
    flex: 1;
    background: transparent;
    border: none;
    color: #fff;
    font-size: 1rem;
}

.hero-search-input:focus {
    outline: none;
}

.hero-search-submit {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
}

.hero-search-submit:hover {
    background: var(--primary-hover);
}

.hero-quick-tags {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 0.25rem 0.25rem;
    font-size: 0.825rem;
}

.quick-tag-label {
    color: var(--text-muted);
}

.quick-tag {
    color: var(--text-secondary);
    background: var(--bg-elevated);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    transition: all 0.15s ease;
}

.quick-tag:hover {
    color: #fff;
    border-color: var(--primary);
}

/* Metrics Strip */
.hero-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}

@media (min-width: 640px) {
    .hero-metrics { grid-template-columns: repeat(4, 1fr); }
}

.metric-num {
    font-size: 1.75rem;
    font-weight: 800;
    color: #fff;
}

.metric-label {
    font-size: 0.825rem;
    color: var(--text-muted);
}

/* Sections */
.section {
    padding: 4rem 0;
}

.section-header {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .section-header {
        flex-direction: row;
        align-items: flex-end;
        justify-content: space-between;
    }
}

.section-title {
    font-size: 1.85rem;
    letter-spacing: -0.5px;
    margin-bottom: 0.4rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.view-all-link {
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
}

.view-all-link:hover {
    text-decoration: underline;
}

/* Categories Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

@media (min-width: 640px) {
    .category-grid { grid-template-columns: repeat(4, 1fr); }
}

.category-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.category-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.category-icon {
    font-size: 1.5rem;
}

.category-name {
    font-size: 0.925rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Filter Pills */
.filter-pills {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
}

.filter-pill {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-pill);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.15s ease;
}

.filter-pill:hover {
    color: #fff;
    border-color: var(--border-hover);
}

.filter-pill.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* Tool Grid */
.tool-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .tool-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
    .tool-grid { grid-template-columns: repeat(3, 1fr); }
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all 0.2s ease;
}

.tool-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.tool-card-top {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    margin-bottom: 1rem;
}

.tool-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    color: #fff;
    font-weight: 800;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.tool-card-headings {
    flex: 1;
    min-width: 0;
}

.tool-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-title a:hover {
    color: var(--primary);
}

.verified-badge {
    color: #38bdf8;
    font-size: 0.85rem;
}

.tool-category-badge {
    font-size: 0.775rem;
    color: var(--text-muted);
}

/* Pricing Badges */
.pricing-badge {
    font-size: 0.725rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.pricing-free {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

.pricing-freemium {
    background: rgba(99, 102, 241, 0.15);
    color: #818cf8;
}

.pricing-paid {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
}

.tool-tagline {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
    flex: 1;
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.25rem;
}

.tool-tag {
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-size: 0.725rem;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.tool-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.tool-rating {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
}

.star-icon {
    color: #f59e0b;
}

.rating-val {
    font-weight: 700;
    color: #fff;
}

.rating-cnt {
    color: var(--text-muted);
    font-size: 0.75rem;
}

.tool-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.upvote-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.35rem 0.65rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.upvote-btn:hover {
    color: #fff;
    border-color: var(--primary);
    background: var(--primary-light);
}

.upvote-arrow {
    color: var(--primary);
    font-size: 0.7rem;
}

.visit-link {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--primary);
}

.visit-link:hover {
    text-decoration: underline;
}

/* Features / Why Us */
.features-box {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    text-align: center;
}

.features-box-title {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.features-box-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    text-align: left;
}

@media (min-width: 768px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); }
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.75rem;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Submit CTA Section */
.submit-cta-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.1) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: var(--radius-lg);
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .submit-cta-card {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.submit-cta-content h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.submit-cta-content p {
    color: var(--text-secondary);
    max-width: 580px;
    font-size: 0.95rem;
}

.btn-primary-large {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 0.95rem 2rem;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 700;
    transition: all 0.2s ease;
    white-space: nowrap;
    text-align: center;
}

.btn-primary-large:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}

.submit-cta-note {
    display: block;
    font-size: 0.775rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    text-align: center;
}

/* Error Page Card */
.error-page-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 4rem 2rem;
    text-align: center;
    max-width: 600px;
    margin: 3rem auto;
}

.error-code {
    font-size: 5rem;
    font-weight: 900;
    color: var(--primary);
    line-height: 1;
    margin-bottom: 1rem;
}

.error-title {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.error-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 2rem;
}

.error-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* Site Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    margin-top: auto;
    padding-top: 4rem;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-bottom: 3.5rem;
}

@media (min-width: 768px) {
    .footer-container { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-logo {
    margin-bottom: 1rem;
}

.footer-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
    max-width: 320px;
}

.footer-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.65rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.badge-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--success);
}

.footer-col h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: #fff;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

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

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    background: #090d16;
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    font-size: 0.825rem;
    color: var(--text-muted);
}

.footer-bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    text-align: center;
}

@media (min-width: 640px) {
    .footer-bottom-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-tech-stack {
    color: var(--text-muted);
    font-size: 0.75rem;
}

/* ====================================================
   Directory & Search Layout System (Phase 05)
   ==================================================== */
.directory-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: start;
}

@media (min-width: 920px) {
    .directory-layout {
        grid-template-columns: 280px 1fr;
    }
}

.directory-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    position: sticky;
    top: 5rem;
}

@media (max-width: 919px) {
    .mobile-filter-bar {
        display: block;
        margin-bottom: 1.25rem;
    }

    .directory-sidebar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 9999;
        border-radius: 0;
        overflow-y: auto;
        padding: 1.5rem;
        background: #090d16;
    }

    .directory-sidebar.mobile-open {
        display: block;
    }

    .sidebar-header-mobile {
        display: flex !important;
    }
}

@media (min-width: 920px) {
    .mobile-filter-bar {
        display: none;
    }
}

.filter-group {
    margin-bottom: 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 1rem;
}

.filter-group:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.filter-title {
    font-size: 0.775rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.65rem;
}

.filter-select {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.45rem 0.65rem;
    border-radius: var(--radius-sm);
    font-size: 0.825rem;
    outline: none;
    cursor: pointer;
}

.filter-select:focus {
    border-color: var(--primary);
}

.filter-checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
    max-height: 180px;
    overflow-y: auto;
}

.filter-radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.filter-radio-label input {
    cursor: pointer;
}

.filter-radio-label:hover {
    color: #fff;
}

.active-pill {
    background: var(--primary) !important;
    color: #fff !important;
    border-color: var(--primary) !important;
}

/* Tool Logo Monogram Fallback */
.tool-logo-monogram {
    transition: transform 0.2s ease;
}

.tool-card:hover .tool-logo-monogram {
    transform: scale(1.05);
}

/* Floating Go To Top Button */
.go-to-top-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity 0.25s ease, transform 0.25s ease, background 0.2s ease, box-shadow 0.2s ease;
    z-index: 999;
}

.go-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.go-to-top-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
    color: #ffffff;
}

.go-to-top-btn:active {
    transform: translateY(0);
}

@media (max-width: 640px) {
    .go-to-top-btn {
        bottom: 1.25rem;
        right: 1.25rem;
        width: 40px;
        height: 40px;
    }
}