/* Google Fonts - Karla */
@import url('https://fonts.googleapis.com/css2?family=Karla:ital,wght@0,200..800;1,200..800&display=swap');

/* Custom CSS for Portfolio Website */

/* Timeline Styles */
.timeline-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(to bottom, #667eea, #764ba2);
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

.timeline-item {
    position: relative;
    margin: 3rem 0;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-item.animate {
    opacity: 1;
    transform: translateY(0);
}

.timeline-content {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    margin-left: 1rem;
    position: relative;
    z-index: 2;
}

.timeline-left {
    flex: 0 0 200px;
    text-align: center;
    padding-right: 2rem;
}

.timeline-center {
    flex: 0 0 300px;
    text-align: center;
    position: relative;
    z-index: 3;
}

.timeline-right {
    flex: 1;
    padding-left: 2rem;
}

.timeline-image {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid #fff;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.timeline-image:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.timeline-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.timeline-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.timeline-dot {
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    margin: 0 auto 1rem;
    border: 4px solid #fff;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.2);
    position: relative;
    z-index: 4;
}

.timeline-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.timeline-date {
    color: #667eea;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.timeline-tech {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-badge {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.timeline-description {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.timeline-description:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.timeline-description p {
    color: #4a5568;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.timeline-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.category-tag {
    background: #f7fafc;
    color: #4a5568;
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid #e2e8f0;
}

.timeline-action {
    text-align: right;
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline-line {
        left: 30px;
    }
    
    .timeline-content {
        flex-direction: column;
        text-align: center;
    }
    
    .timeline-left,
    .timeline-center,
    .timeline-right {
        flex: none;
        width: 100%;
        padding: 0;
        margin-bottom: 1rem;
    }
    
    .timeline-left {
        order: 1;
    }
    
    .timeline-center {
        order: 2;
    }
    
    .timeline-right {
        order: 3;
    }
    
    .timeline-item {
        margin-left: 2rem;
    }
    
    .timeline-dot {
        position: absolute;
        left: -2.5rem;
        top: 50%;
        transform: translateY(-50%);
    }
}

:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --info-color: #0dcaf0;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --font-family: 'Karla', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--dark-color);
}

/* Navigation */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
}

.navbar-nav .nav-link.active {
    color: var(--primary-color) !important;
}

/* Main Content */
.main-content {
    /* No margin needed since nav is not fixed */
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-section h1 {
    font-weight: 800;
    line-height: 1.2;
}

.hero-section .lead {
    font-size: 1.25rem;
    font-weight: 300;
}

/* Skills Section */
.skills-container .badge {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: transform 0.3s ease;
}

.skills-container .badge:hover {
    transform: translateY(-2px);
}

/* Project Cards */
.project-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15) !important;
}

.project-image-container {
    position: relative;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-image-container:hover .project-overlay {
    opacity: 1;
}

.project-links {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* Timeline - Additional styles for markers */
.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 3px solid white;
    box-shadow: 0 0 0 3px var(--primary-color);
}

/* Contact Form */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    border-color: #0a58ca;
    transform: translateY(-1px);
}

/* Social Links */
.social-links a {
    transition: transform 0.3s ease, color 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-2px);
    color: var(--primary-color) !important;
}

/* Footer */
footer {
    margin-top: auto;
}

/* Error Page */
.error-page {
    padding: 3rem 0;
}

.error-page .display-1 {
    font-size: 8rem;
    font-weight: 900;
    line-height: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .hero-section h1 {
        font-size: 2.5rem;
    }
    
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline::before {
        left: 0.5rem;
    }
    
    .timeline-marker {
        left: -1.5rem;
    }
    
    .timeline-content {
        margin-left: 0.5rem;
    }
    
    .error-page .display-1 {
        font-size: 4rem;
    }
}

@media (max-width: 576px) {
    .hero-section h1 {
        font-size: 2rem;
    }
    
    .hero-section .lead {
        font-size: 1rem;
    }
    
    .btn-lg {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Utility Classes */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), #0056b3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-soft {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08) !important;
}

.border-soft {
    border: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #0b5ed7;
}