:root {
    /* X (Twitter) Brand Colors */
    --x-black: #000000;
    --x-white: #FFFFFF;
    --x-blue: #1D9BF0;
    --x-dark-gray: #16181C;
    --x-gray: #71767B;
    --x-light-gray: #EFF3F4;
    --x-border: #2F3336;
    --x-hover: #181818;

    /* Light Theme */
    --bg-primary-light: #FFFFFF;
    --bg-secondary-light: #F7F9F9;
    --text-primary-light: #0F1419;
    --text-secondary-light: #536471;
    --border-light: #EFF3F4;
    --hover-light: #F7F9F9;

    /* Dark Theme */
    --bg-primary-dark: #000000;
    --bg-secondary-dark: #16181C;
    --text-primary-dark: #E7E9EA;
    --text-secondary-dark: #71767B;
    --border-dark: #2F3336;
    --hover-dark: #181818;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #1D9BF0 0%, #0E7AC4 100%);
    --gradient-secondary: linear-gradient(135deg, #7856FF 0%, #5B3FD6 100%);

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: var(--spacing-md);
    color: var(--text-primary-light);
    line-height: 1.5;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.header-content {
    text-align: center;
}

.logo-section {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.twitter-logo {
    width: 40px;
    height: 40px;
    fill: var(--x-black);
    transition: transform var(--transition-base);
}

.twitter-logo:hover {
    transform: scale(1.1) rotate(5deg);
}

.header h1 {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, #000000 0%, #434343 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary-light);
    font-size: 1rem;
    font-weight: 500;
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

/* Control Panel */
.control-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    max-height: calc(100vh - 200px);
    overflow-y: auto;
    position: sticky;
    top: var(--spacing-md);
}

.control-panel::-webkit-scrollbar {
    width: 8px;
}

.control-panel::-webkit-scrollbar-track {
    background: var(--bg-secondary-light);
    border-radius: var(--radius-full);
}

.control-panel::-webkit-scrollbar-thumb {
    background: var(--x-gray);
    border-radius: var(--radius-full);
}

.control-panel::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary-light);
}

.panel-header {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-light);
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary-light);
    margin-bottom: var(--spacing-xs);
}

.panel-header p {
    color: var(--text-secondary-light);
    font-size: 0.875rem;
}

/* Form Sections */
.form-section {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.form-section:last-of-type {
    border-bottom: none;
}

.section-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary-light);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

/* Form Groups */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary-light);
    margin-bottom: var(--spacing-sm);
}

.form-group input[type="text"],
.form-group input[type="url"],
.form-group input[type="number"],
.form-group input[type="time"],
.form-group input[type="date"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-family: inherit;
    transition: all var(--transition-base);
    background: var(--bg-primary-light);
    color: var(--text-primary-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--x-blue);
    box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group small {
    display: block;
    margin-top: var(--spacing-xs);
    color: var(--text-secondary-light);
    font-size: 0.75rem;
}

.input-with-prefix {
    display: flex;
    align-items: center;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

.input-with-prefix:focus-within {
    border-color: var(--x-blue);
    box-shadow: 0 0 0 3px rgba(29, 155, 240, 0.1);
}

.input-with-prefix .prefix {
    padding: 0.75rem;
    background: var(--bg-secondary-light);
    color: var(--text-secondary-light);
    font-weight: 600;
    border-right: 2px solid var(--border-light);
}

.input-with-prefix input {
    border: none;
    flex: 1;
    padding: 0.75rem;
}

.input-with-prefix input:focus {
    box-shadow: none;
}

.file-input {
    margin-top: var(--spacing-sm);
    padding: 0.5rem;
    border: 2px dashed var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.file-input:hover {
    border-color: var(--x-blue);
    background: rgba(29, 155, 240, 0.05);
}

/* Checkbox */
.checkbox-group {
    margin-top: var(--spacing-md);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
    font-weight: 500;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--x-blue);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

/* Character Count */
.char-count {
    text-align: right;
    margin-top: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--text-secondary-light);
}

.char-count.warning {
    color: #F4900C;
}

.char-count.error {
    color: #F4212E;
}

/* Form Actions */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--border-light);
}

.btn {
    flex: 1;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: var(--radius-full);
    font-size: 0.9375rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-family: inherit;
}

.btn-primary {
    background: var(--x-black);
    color: var(--x-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: var(--x-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-secondary-light);
    color: var(--text-primary-light);
    border: 2px solid var(--border-light);
}

.btn-secondary:hover {
    background: var(--hover-light);
    border-color: var(--text-secondary-light);
}

/* Preview Panel */
.preview-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    min-height: 600px;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 2px solid var(--border-light);
}

.preview-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary-light);
}

.theme-toggle {
    display: flex;
    gap: var(--spacing-sm);
    background: var(--bg-secondary-light);
    padding: 4px;
    border-radius: var(--radius-full);
}

.theme-btn {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--text-secondary-light);
    cursor: pointer;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-btn:hover {
    color: var(--text-primary-light);
}

.theme-btn.active {
    background: var(--x-black);
    color: var(--x-white);
}

.preview-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
    padding: var(--spacing-xl);
}

.preview-info {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(29, 155, 240, 0.1) 0%, rgba(120, 86, 255, 0.1) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid rgba(29, 155, 240, 0.2);
}

.preview-info p {
    color: var(--text-secondary-light);
    font-size: 0.875rem;
    font-weight: 500;
}

/* Tweet Preview - Light Theme */
.tweet-preview {
    background: var(--bg-primary-light);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 600px;
    width: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    box-shadow: var(--shadow-md);
}

.tweet-preview.dark {
    background: var(--bg-primary-dark);
    border-color: var(--border-dark);
    color: var(--text-primary-dark);
}

.tweet-header {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.tweet-avatar {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-full);
    object-fit: cover;
    flex-shrink: 0;
}

.tweet-user-info {
    flex: 1;
    min-width: 0;
}

.tweet-user-name {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tweet-display-name {
    font-size: 0.9375rem;
    font-weight: 700;
    color: var(--text-primary-light);
}

.tweet-preview.dark .tweet-display-name {
    color: var(--text-primary-dark);
}

.verified-badge {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.tweet-username {
    font-size: 0.9375rem;
    color: var(--text-secondary-light);
}

.tweet-preview.dark .tweet-username {
    color: var(--text-secondary-dark);
}

.tweet-content {
    margin-bottom: var(--spacing-md);
}

.tweet-text {
    font-size: 0.9375rem;
    line-height: 1.5;
    color: var(--text-primary-light);
    white-space: pre-wrap;
    word-wrap: break-word;
}

.tweet-preview.dark .tweet-text {
    color: var(--text-primary-dark);
}

.tweet-image-container {
    margin-top: var(--spacing-md);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.tweet-preview.dark .tweet-image-container {
    border-color: var(--border-dark);
}

.tweet-image {
    width: 100%;
    display: block;
}

.tweet-metadata {
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    margin: var(--spacing-md) 0;
}

.tweet-preview.dark .tweet-metadata {
    border-color: var(--border-dark);
}

.tweet-time {
    font-size: 0.9375rem;
    color: var(--text-secondary-light);
}

.tweet-preview.dark .tweet-time {
    color: var(--text-secondary-dark);
}

.tweet-stats {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--border-light);
    margin-bottom: var(--spacing-md);
}

.tweet-preview.dark .tweet-stats {
    border-color: var(--border-dark);
}

.tweet-stat {
    display: flex;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
}

.tweet-stat-value {
    font-weight: 700;
    color: var(--text-primary-light);
}

.tweet-preview.dark .tweet-stat-value {
    color: var(--text-primary-dark);
}

.tweet-stat-label {
    color: var(--text-secondary-light);
}

.tweet-preview.dark .tweet-stat-label {
    color: var(--text-secondary-dark);
}

.tweet-actions {
    display: flex;
    justify-content: space-around;
    align-items: center;
}

.tweet-action {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary-light);
    font-size: 0.8125rem;
}

.tweet-preview.dark .tweet-action {
    color: var(--text-secondary-dark);
}

.tweet-action svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .main-content {
        grid-template-columns: 350px 1fr;
    }
}

@media (max-width: 968px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .control-panel {
        position: static;
        max-height: none;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    body {
        padding: var(--spacing-sm);
    }

    .header {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    .logo-section {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .header h1 {
        font-size: 1.25rem;
    }

    .subtitle {
        font-size: 0.875rem;
    }

    .control-panel,
    .preview-panel {
        padding: var(--spacing-lg);
    }

    .form-actions {
        flex-direction: column;
    }

    .preview-container {
        padding: var(--spacing-md);
    }

    .tweet-preview {
        max-width: 100%;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tweet-preview {
    animation: fadeIn 0.3s ease;
}

/* Loading State */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--x-white);
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Breadcrumb Navigation ===== */
.breadcrumb-nav {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.breadcrumb-container {
    max-width: 1400px;
    margin: 0 auto;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    list-style: none;
    font-size: 0.875rem;
}

.breadcrumb-list li {
    display: flex;
    align-items: center;
}

.breadcrumb-list a {
    color: var(--x-blue);
    text-decoration: none;
    transition: color var(--transition-base);
}

.breadcrumb-list a:hover {
    color: #0E7AC4;
    text-decoration: underline;
}

.breadcrumb-list .separator {
    color: var(--text-secondary-light);
    margin: 0 var(--spacing-xs);
}

.breadcrumb-list [aria-current="page"] {
    color: var(--text-secondary-light);
    font-weight: 500;
}

/* ===== Brand Logo in Header ===== */
.brand-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    margin-right: var(--spacing-md);
}

.brand-logo {
    border-radius: var(--radius-md);
    transition: transform var(--transition-base);
}

.brand-link:hover .brand-logo {
    transform: scale(1.05);
}

/* ===== SEO Content Sections ===== */
.seo-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    margin-top: var(--spacing-xl);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl) var(--spacing-md);
    box-shadow: var(--shadow-lg);
}

.seo-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.seo-section h2 {
    font-size: 1.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, #000000 0%, #434343 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-intro {
    text-align: center;
    color: var(--text-secondary-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-xl);
    font-size: 1rem;
    line-height: 1.6;
}

/* How It Works - Steps Grid */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.step-card {
    background: linear-gradient(135deg, rgba(29, 155, 240, 0.05) 0%, rgba(120, 86, 255, 0.05) 100%);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.step-card:hover {
    transform: translateY(-4px);
    border-color: var(--x-blue);
    box-shadow: var(--shadow-md);
}

.step-number {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    margin: 0 auto var(--spacing-md);
}

.step-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary-light);
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    background: var(--bg-secondary-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

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

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary-light);
}

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

/* Use Cases Grid */
.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.use-case-card {
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-base);
}

.use-case-card:hover {
    border-color: var(--x-blue);
    box-shadow: var(--shadow-md);
}

.use-case-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary-light);
}

.use-case-card p {
    font-size: 0.875rem;
    color: var(--text-secondary-light);
    line-height: 1.5;
}

/* FAQ Section */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.faq-item {
    background: var(--bg-secondary-light);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border-left: 4px solid var(--x-blue);
}

.faq-item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary-light);
}

.faq-item p {
    font-size: 0.875rem;
    color: var(--text-secondary-light);
    line-height: 1.6;
}

/* ===== Footer ===== */
.site-footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    margin-top: var(--spacing-xl);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    padding: var(--spacing-xl) var(--spacing-md);
    color: #e0e0e0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: white;
}

.footer-logo-link img {
    border-radius: var(--radius-md);
}

.footer-brand-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
}

.footer-tagline {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-column h4 {
    font-size: 0.875rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer-column ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color var(--transition-base);
}

.footer-column a:hover {
    color: var(--x-blue);
}

.footer-column a[aria-current="page"] {
    color: var(--x-blue);
    font-weight: 600;
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: var(--spacing-sm);
}

.footer-disclaimer {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.4);
    font-style: italic;
}

/* ===== Responsive for SEO Sections ===== */
@media (max-width: 968px) {
    .seo-section h2 {
        font-size: 1.5rem;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        align-items: center;
    }

    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 640px) {
    .breadcrumb-nav {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .breadcrumb-list {
        font-size: 0.75rem;
    }

    .seo-section {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .seo-container {
        padding: 0 var(--spacing-sm);
    }

    .seo-section h2 {
        font-size: 1.25rem;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .features-grid,
    .use-cases-grid {
        grid-template-columns: 1fr;
    }

    .faq-grid {
        grid-template-columns: 1fr;
    }

    .faq-item {
        min-width: 0;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-column {
        text-align: center;
    }
}