/* Global Styles */
:root {
    --primary-50: #f0f9ff;
    --primary-100: #e0f2fe;
    --primary-400: #38bdf8;
    --primary-500: #0ea5e9;
    --primary-600: #0284c7;
    --primary-700: #0369a1;
    --primary-800: #075985;
    --primary-900: #0c4a6e;
}

/* Dark Mode */
.dark {
    color-scheme: dark;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation */
.nav-link {
    transition: color 0.3s ease;
}

/* Hero Section */
.gradient-text {
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
    background-image: linear-gradient(45deg, var(--primary-500), var(--primary-700));
}

/* Skills Section */
.skill-progress {
    transition: width 1s ease-in-out;
}

/* Project Cards */
.project-card {
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
}

/* Gallery */
.gallery-item {
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: scale(1.05);
}

/* Modal & Lightbox */
.modal, .lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
}

.modal.active, .lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content, .lightbox-content {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    max-width: 800px;
    width: 90%;
    position: relative;
}

.dark .modal-content {
    background: var(--primary-900);
}

.modal-close, .lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: white;
}

/* Contact Form */
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 2px var(--primary-100);
}

/* 3D Tilt Effect */
.tilt-effect {
    transition: transform 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .modal-content, .lightbox-content {
        width: 95%;
        padding: 1rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-500);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-600);
}