/* Custom Styles */

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Navbar shadow on scroll */
.navbar-scrolled {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* Skill tags */
.skill-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: rgba(30, 64, 175, 0.1);
    color: #1e40af;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.dark .skill-tag {
    background-color: rgba(96, 165, 250, 0.1);
    color: #60a5fa;
}

.skill-tag:hover {
    background-color: rgba(30, 64, 175, 0.2);
    transform: translateY(-2px);
}

.dark .skill-tag:hover {
    background-color: rgba(96, 165, 250, 0.2);
}

/* Project cards */
.project-card {
    position: relative;
    background: white;
    border: 1px solid #e5e7eb;
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
}

.dark .project-card {
    background: #1f2937;
    border-color: #374151;
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
}

.dark .project-card:hover {
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
}

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    opacity: 0.8;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.project-description {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.dark .project-description {
    color: #9ca3af;
}

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

.tech-badge {
    padding: 0.25rem 0.75rem;
    background-color: #f3f4f6;
    color: #374151;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.dark .tech-badge {
    background-color: #374151;
    color: #d1d5db;
}

.project-links {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: #1e40af;
    color: white;
    border-radius: 0.5rem;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s;
}

.project-link:hover {
    background-color: #1e3a8a;
}

.project-link-secondary {
    background-color: transparent;
    border: 1px solid #d1d5db;
    color: #374151;
}

.dark .project-link-secondary {
    border-color: #4b5563;
    color: #d1d5db;
}

.project-link-secondary:hover {
    background-color: #f9fafb;
}

.dark .project-link-secondary:hover {
    background-color: #374151;
}

/* Timeline */
.timeline-item {
    position: relative;
    padding-left: 2rem;
    padding-bottom: 2rem;
}

.timeline-dot {
    position: absolute;
    left: -0.5rem;
    top: 0;
    width: 1rem;
    height: 1rem;
    background-color: #1e40af;
    border-radius: 50%;
    border: 3px solid white;
}

.dark .timeline-dot {
    background-color: #60a5fa;
    border-color: #111827;
}

.timeline-date {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.dark .timeline-date {
    color: #9ca3af;
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-description {
    color: #6b7280;
    line-height: 1.6;
}

.dark .timeline-description {
    color: #9ca3af;
}

/* Modal */
#project-modal {
    backdrop-filter: blur(4px);
}

#project-modal > div {
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form */
input:focus,
textarea:focus {
    outline: none;
}

#form-status.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.dark #form-status.success {
    background-color: rgba(6, 95, 70, 0.2);
    color: #6ee7b7;
    border-color: #065f46;
}

#form-status.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.dark #form-status.error {
    background-color: rgba(153, 27, 27, 0.2);
    color: #fca5a5;
    border-color: #991b1b;
}

/* Animations */
.fade-in {
    animation: fadeIn 0.6s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Lazy loading */
img[data-src] {
    filter: blur(10px);
    transition: filter 0.3s;
}

img.loaded {
    filter: blur(0);
}

/* Responsive typography */
@media (max-width: 640px) {
    .project-title {
        font-size: 1.125rem;
    }
    
    .timeline-title {
        font-size: 1rem;
    }
}

/* Print styles */
@media print {
    nav,
    #theme-toggle,
    #contact,
    footer {
        display: none;
    }
    
    section {
        page-break-inside: avoid;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus styles */
a:focus-visible,
button:focus-visible {
    outline: 2px solid #1e40af;
    outline-offset: 2px;
}

.dark a:focus-visible,
.dark button:focus-visible {
    outline-color: #60a5fa;
}