/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: var(--color-bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.nav-logo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.logo-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-md);
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.nav-links {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.75rem 1.25rem;
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    border-radius: var(--radius-full);
    transition: var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text);
    background: var(--color-bg-card);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition-base);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

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

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

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

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

.btn-full {
    width: 100%;
}

/* ===== Tags ===== */
.tag {
    padding: 0.375rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary-light);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

/* ===== Cards ===== */
.project-card {
    background: var(--gradient-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition-slow);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg), 0 0 40px rgba(99, 102, 241, 0.15);
}

.project-card.featured {
    grid-column: span 2;
}

.project-card.featured .project-image {
    aspect-ratio: 21/9;
}

.project-image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.project-card:hover .project-img {
    transform: scale(1.05);
}

.project-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    color: rgba(255, 255, 255, 0.2);
}

.gradient-1 {
    background: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
}

.gradient-2 {
    background: linear-gradient(135deg, #ec4899 0%, #f97316 100%);
}

.gradient-3 {
    background: linear-gradient(135deg, #22d3ee 0%, #3b82f6 100%);
}

.gradient-4 {
    background: linear-gradient(135deg, #10b981 0%, #14b8a6 100%);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-base);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-link {
    width: 56px;
    height: 56px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-bg);
    transform: scale(0.8);
    transition: var(--transition-base);
}

.project-card:hover .project-link {
    transform: scale(1);
}

.project-info {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-description {
    font-size: 0.938rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===== Skill Categories ===== */
.skill-category {
    background: var(--gradient-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-slow);
}

.skill-category:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.skill-icon {
    width: 64px;
    height: 64px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--color-primary-light);
}

.skill-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.skill-list li {
    font-size: 0.938rem;
    color: var(--color-text-secondary);
    padding: 0.5rem;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.skill-list li:hover {
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-text);
}

/* ===== Contact Items ===== */
.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
}

/* ===== Form Elements ===== */
.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}