:root {
    --color-primary: #1E3A8A;
    --color-primary-hover: #2563EB;
    --color-accent: #93c5fd;
    --color-accent-light: #bfdbfe;
    --color-bg-dark: #0F172A;
    --color-bg-card: #1E293B;
    --color-bg-navbar: #080b12;
    --color-border: #334155;
    --color-text-white: #ffffff;
    --color-text-body: #cbd5e1;
    --color-text-muted: #94a3b8;
    --color-text-dimmed: #64748b;
    --radius-card: 12px;
    --navbar-height: 50px;
    --transition-color: color 0.3s ease;
    --transition-lift: transform 0.2s ease;
}

body {
    padding-top: var(--navbar-height);
    background-color: var(--color-bg-dark);
    color: var(--color-text-white);
}

.card-item,
.tag-filter,
.cta-box,
.modal-content {
    background-color: var(--color-bg-card);
    border-radius: var(--radius-card);
    border: 1px solid var(--color-border);
}

.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    transition: background-color 0.3s ease, var(--transition-lift);
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    border-color: var(--color-primary-hover);
    transform: translateY(-2px);
}

.btn-outline-primary {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.btn-outline-primary:hover {
    background-color: var(--color-accent);
    color: var(--color-bg-dark);
}

.navbar, footer {
    background-color: var(--color-bg-navbar);
}

.navbar-nav .nav-link {
    color: var(--color-text-white);
    transition: color 0.5s ease;
    margin-left: 0.5rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
    color: var(--color-accent);
}

.hero-section {
    background: linear-gradient(135deg, var(--color-bg-navbar) 0%, var(--color-primary) 100%);
}

.hero-subtitle {
    color: var(--color-accent);
}

.hero-image {
    margin-bottom: -47px;
    max-height: 500px;
    object-fit: contain;
}

@media (max-width: 767px) {
    .hero-image {
        max-height: 300px;
    }
}

.hero-social a {
    color: var(--color-text-white);
    font-size: 1.5rem;
    transition: var(--transition-color), var(--transition-lift);
}

.hero-social a:hover {
    color: var(--color-accent);
    transform: translateY(-2px);
}

.image {
    max-height: 400px;
    border-radius: var(--radius-card);
}

#about .lead {
    color: var(--color-accent);
    font-style: italic;
}

.timeline-item {
    margin-bottom: 1.5rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item h5 {
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.timeline-date {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.timeline-item ul {
    padding-left: 1.25rem;
    color: var(--color-text-white);
}

.timeline-item li {
    margin-bottom: 0.25rem;
}

.project-tech {
    font-size: 0.85rem;
    margin-bottom: 0.75rem;
}

.project-link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

.project-link:hover {
    gap: 0.5rem;
}

.modal-content {
    color: var(--color-text-white);
}

.modal-header {
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    color: var(--color-accent);
}

.modal-body h6 {
    color: var(--color-accent);
    margin-top: 1rem;
}

.cta-box {
    padding: 3rem 2rem;
}

.cta-box h2 {
    margin-bottom: 1rem;
}

.cta-box .lead {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
}

.footer-name {
    color: var(--color-accent);
    margin-bottom: 0.25rem;
}

.footer-location {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.footer-social a {
    color: var(--color-text-body);
    font-size: 1.5rem;
    transition: var(--transition-color), var(--transition-lift);
}

.footer-social a:hover {
    color: var(--color-accent);
    transform: translateY(-2px);
}

.footer-divider {
    border-color: var(--color-border);
    margin: 1.5rem auto;
    width: 50%;
}

.footer-copyright {
    color: var(--color-text-dimmed);
    font-size: 0.85rem;
    margin-bottom: 0;
}

#about, #career, #education, #projects {
    scroll-margin-top: var(--navbar-height);
}