/* Custom CSS for Portfolio */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --info-color: #17a2b8;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --font-family: 'Inter', 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;
    margin: 0 0.5rem;
    transition: color 0.3s ease;
}

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

/* Main Content Spacing */
main {
    padding-top: 2rem;
}

/* Page Hero Sections */
.py-5.bg-light:first-of-type {
    padding-top: 4rem !important;
}

/* Regular sections */
section.py-5:first-of-type {
    padding-top: 4rem !important;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

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

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

.skill-card,
.project-card,
.experience-card {
    transition: all 0.3s ease;
}

.skill-card:hover,
.project-card:hover,
.experience-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1) !important;
}

/* Skill Cards */
.skill-card {
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.skill-card:hover {
    border-color: var(--primary-color);
}

.skill-icon {
    transition: transform 0.3s ease;
}

.skill-card:hover .skill-icon {
    transform: scale(1.1);
}

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

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

.project-tech .badge {
    font-size: 0.75rem;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e9ecef;
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 1rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px #e9ecef;
}

.timeline-content {
    margin-left: 1rem;
}

/* Progress Bars */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: 4px;
    transition: width 0.6s ease;
}

/* Buttons */
.btn {
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Forms */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid #e9ecef;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Badges */
.badge {
    font-weight: 500;
    border-radius: 0.375rem;
}

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

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

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline::before {
        left: 0.75rem;
    }
    
    .timeline-marker {
        left: -1.5rem;
    }
    
    .timeline-content {
        margin-left: 0.5rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .display-4 {
        font-size: 2.5rem;
    }
    
    .display-5 {
        font-size: 2rem;
    }
}

/* Custom Utilities */
.text-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.shadow-custom {
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.border-radius-custom {
    border-radius: 1rem;
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Contact Form */
.contact-item {
    padding: 1rem 0;
    border-bottom: 1px solid #e9ecef;
}

.contact-item:last-child {
    border-bottom: none;
}

/* Skills Page */
.skill-category-section {
    padding: 2rem 0;
}

.skill-item-card {
    transition: all 0.3s ease;
}

.skill-item-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1) !important;
}

.skill-summary-card {
    transition: all 0.3s ease;
}

.skill-summary-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1) !important;
}

/* Project Detail */
.project-description {
    font-size: 1.1rem;
    line-height: 1.8;
}

.tech-tags .badge {
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
}

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

footer a {
    transition: color 0.3s ease, transform 0.3s ease;
    display: inline-flex;
    align-items: center;
}

footer a:hover {
    color: var(--primary-color) !important;
    transform: translateX(3px);
}

footer .fab,
footer .fas {
    transition: transform 0.3s ease;
}

footer a:hover .fab,
footer a:hover .fas {
    transform: scale(1.1);
}

footer small {
    line-height: 1.8;
}

footer ul li {
    transition: all 0.3s ease;
}

footer ul li:hover {
    padding-left: 5px;
}

/* Breadcrumb */
.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: ">";
    color: #6c757d;
}

/* Pagination */
.pagination .page-link {
    border-radius: 0.5rem;
    margin: 0 0.25rem;
    border: 1px solid #e9ecef;
    color: var(--primary-color);
}

.pagination .page-link:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.pagination .page-item.active .page-link {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Alert Messages */
.alert {
    border-radius: 0.5rem;
    border: none;
}

/* Profile Image */
.profile-placeholder {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.profile-image {
    border-radius: 50% !important;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    object-position: center top;
}

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

/* Focus States */
.btn:focus,
.form-control:focus,
.form-select:focus {
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    footer {
        display: none !important;
    }
    
    .container {
        max-width: none !important;
    }
}