[data-theme="dark"] {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --primary-light: #1e3a8a;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --dark: #f8fafc;
    --dark-gray: #cbd5e1;
    --gray: #94a3b8;
    --light-gray: #334155;
    --light: #1e293b;
    --white: #ffffff;
    --card-bg: #1e293b;
    --body-bg: #0f172a;
    --error: #ef4444;
    --success: #10b981;
    --warning: #f59e0b;
}

[data-theme="dark"] .btn-outline {
    border-color: var(--primary-light);
    color: var(--primary-light);
}

[data-theme="dark"] .btn-outline:hover {
    background-color: var(--primary-light);
    color: var(--white);
}

[data-theme="dark"] .filter-btn {
    background-color: var(--light-gray);
    color: var(--dark-gray);
}

[data-theme="dark"] .filter-btn.active, 
[data-theme="dark"] .filter-btn:hover {
    background-color: var(--primary-light);
    color: var(--white);
}

[data-theme="dark"] .timeline-tech span,
[data-theme="dark"] .project-tech span {
    background-color: var(--light-gray);
    color: var(--dark);
}

[data-theme="dark"] .faq-item {
    border-color: var(--light-gray);
}

[data-theme="dark"] .footer-bottom {
    border-top-color: var(--light-gray);
}