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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Navigation */
.navbar {
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

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

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

.nav-link:hover {
    color: #007bff !important;
}

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

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    animation: fadeInUp 1s ease-out;
}

.hero-content p {
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.4s both;
}

.profile-placeholder {
    animation: fadeInRight 1s ease-out 0.6s both;
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #333;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #007bff, #6610f2);
    margin: 0 auto 2rem;
    border-radius: 2px;
}

/* About Section */
.about-card {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border-left: 4px solid #007bff;
}

.about-card h4 {
    color: #007bff;
    font-weight: 600;
}

.about-card ul li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #f8f9fa;
}

.about-card ul li:last-child {
    border-bottom: none;
}

.stat-item h4 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: #6c757d;
    font-weight: 500;
}

/* Skills Section */
.skill-category {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    height: 100%;
}

.skill-category h4 {
    color: #007bff;
    font-weight: 600;
}

.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
    overflow: hidden;
}

.progress-bar {
    background: linear-gradient(90deg, #007bff, #6610f2);
    transition: width 1.5s ease-in-out;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, #007bff, #6610f2);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.timeline-marker {
    position: absolute;
    left: -1.5rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: #007bff;
    border-radius: 50%;
    border: 3px solid #fff;
    box-shadow: 0 0 0 3px #007bff;
}

.timeline-content {
    background: #fff;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    border-left: 4px solid #007bff;
}

.timeline-content h4 {
    color: #007bff;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content h6 {
    font-weight: 500;
    margin-bottom: 1rem;
}

.timeline-content ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
}

.timeline-content ul li {
    margin-bottom: 0.5rem;
    color: #6c757d;
}

/* Projects Section */
.project-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
}

.project-image {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 2rem;
    text-align: center;
    border-bottom: 1px solid #f8f9fa;
}

.project-content {
    padding: 1.5rem;
}

.project-content h4 {
    color: #333;
    font-weight: 600;
    margin-bottom: 1rem;
}

.project-tags {
    margin-top: 1rem;
}

.project-tags .badge {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.75rem;
    padding: 0.5rem 0.75rem;
}

/* Contact Section */
.contact-info {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    height: 100%;
}

.contact-item {
    display: flex;
    align-items: center;
    padding: 1rem 0;
    border-bottom: 1px solid #f8f9fa;
}

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

.contact-item i {
    font-size: 1.2rem;
    width: 30px;
}

.contact-form {
    background: #fff;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.form-control {
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 0.75rem 1rem;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

.social-links .btn {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,123,255,0.3);
}

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline-item {
        padding-left: 1rem;
    }
    
    .timeline-marker {
        left: -0.5rem;
    }
    
    .about-stats .col-4 {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .about-card,
    .skill-category,
    .contact-info,
    .contact-form {
        padding: 1.5rem;
    }
}

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

/* Button Styles */
.btn {
    border-radius: 25px;
    padding: 0.75rem 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #6610f2);
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3, #520dc2);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,123,255,0.3);
}

.btn-outline-light:hover {
    background: #fff;
    color: #007bff;
    transform: translateY(-2px);
}

/* Loading Animation for Skills */
.skill-item {
    opacity: 0;
    animation: slideInLeft 0.8s ease-out forwards;
}

.skill-item:nth-child(1) { animation-delay: 0.1s; }
.skill-item:nth-child(2) { animation-delay: 0.2s; }
.skill-item:nth-child(3) { animation-delay: 0.3s; }

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hover Effects */
.project-card,
.about-card,
.skill-category,
.contact-info,
.contact-form {
    transition: all 0.3s ease;
}

.project-card:hover,
.about-card:hover,
.skill-category:hover,
.contact-info:hover,
.contact-form:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #007bff, #6610f2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #0056b3, #520dc2);
}