/* Custom CSS for Portfolio Website */

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --dark-color: #212529;
    --light-color: #f8f9fa;
    --accent-color: #28a745;
    --gradient-primary: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
    --gradient-secondary: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --box-shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
    --border-radius: 15px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
}

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

/* Section Styling */
section {
    position: relative;
    overflow: hidden;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

/* Navigation Styles */
.navbar {
    backdrop-filter: blur(10px);
    box-shadow: var(--box-shadow);
}

.navbar-brand {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
}

.navbar-profile-img {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.navbar-nav .nav-link {
    font-weight: 500;
    margin: 0 10px;
    position: relative;
    transition: var(--transition);
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 50%, #dee2e6 100%);
    position: relative;
    padding-top: 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23007bff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    z-index: -1;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero-content h2 {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.hero-buttons .btn {
    padding: 12px 30px;
    font-weight: 500;
    border-radius: 50px;
    transition: var(--transition);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

.hero-buttons .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.4);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    color: var(--primary-color);
    text-decoration: none;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-hover);
    color: white;
    background: var(--primary-color);
}

.profile-container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-circle {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    position: relative;
    overflow: hidden;
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid white;
    transition: var(--transition);
}

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

.profile-circle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
    z-index: 1;
}

@keyframes shimmer {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* About Section */
.about-content {
    padding: 2rem 0;
}

.info-item {
    margin-bottom: 1.5rem;
    padding: 1rem 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

.info-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
}

.info-item strong {
    color: var(--primary-color);
    font-weight: 600;
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.clickable-item {
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
}

.clickable-item:hover {
    background: #f0f8ff !important;
    border-left-color: var(--accent-color) !important;
}

.copy-icon {
    position: absolute;
    top: 1rem;
    right: 1rem;
    color: var(--secondary-color);
    font-size: 0.9rem;
    opacity: 0;
    transition: all 0.3s ease;
}

.clickable-item:hover .copy-icon {
    opacity: 1;
    color: var(--primary-color);
}

.copied {
    background: #d4edda !important;
    border-left-color: var(--accent-color) !important;
}

.copied .copy-icon {
    color: var(--accent-color) !important;
}

/* Notification animations */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutRight {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

.copy-notification {
    animation: slideInRight 0.3s ease-out;
}

.email-item {
    position: relative;
}

.email-text {
    font-size: 0.8rem;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .email-text {
        font-size: 0.8rem;
    }
    
    .info-item {
        font-size: 0.85rem;
    }
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.highlight-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.highlight-content h5 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.highlight-content p {
    margin: 0;
    color: var(--secondary-color);
}

/* Timeline Styling */
.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 80px;
}

.timeline-marker {
    position: absolute;
    left: 20px;
    top: 0;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 4px solid white;
    box-shadow: 0 0 0 4px var(--primary-color);
}

.timeline-content {
    background: white;
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-hover);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.timeline-header h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin: 0;
}

.timeline-date {
    background: var(--gradient-primary);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.timeline-description {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.timeline-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--light-color);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--primary-color);
}

/* Project Cards */
.project-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.project-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    gap: 1rem;
}

.project-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.project-info h4 {
    margin: 0 0 0.5rem 0;
    font-weight: 600;
    color: var(--dark-color);
}

.project-duration {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

.project-description {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
}

.project-details h6 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.project-details ul {
    margin-bottom: 1.5rem;
    padding-left: 1.2rem;
}

.project-details li {
    margin-bottom: 0.3rem;
    color: var(--secondary-color);
}

.project-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tool-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Skills Section */
.skill-category {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
}

.skill-category:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.skill-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    color: white;
    font-size: 2rem;
}

.skill-category h5 {
    margin-bottom: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.skill-item {
    background: var(--light-color);
    color: var(--dark-color);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid #e9ecef;
    transition: var(--transition);
}

.skill-item:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Education Cards */
.education-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    height: 100%;
}

.education-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--box-shadow-hover);
}

.education-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    color: white;
    font-size: 2rem;
}

.education-content h5 {
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--dark-color);
}

.education-institute {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.education-score {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.score-label {
    color: var(--secondary-color);
    font-weight: 500;
}

.score-value {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

/* Contact Section */
.contact-item {
    padding: 2.5rem 1.5rem;
}

.contact-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
    color: white;
    font-size: 2rem;
}

.contact-item h5 {
    margin-bottom: 1rem;
    font-weight: 600;
}

.contact-item a {
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--primary-color) !important;
}

.contact-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-form .form-control {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 10px;
    padding: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.contact-form .form-control:focus {
    background: white;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Footer */
.footer {
    background: #000 !important;
}

.footer .social-links {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
}

.footer .social-link {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
}

.footer .social-link:hover {
    background: white;
    color: var(--primary-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-image {
        padding-top: 3rem;
    }
    
    .profile-container {
        padding-top: 2rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }    .section-title {
        font-size: 2rem;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-marker {
        left: 5px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .profile-circle {
        width: 200px;
        height: 200px;
    }
    
    .hero-buttons {
        text-align: center;
    }
    
    .hero-buttons .btn {
        margin-bottom: 1rem;
        width: 100%;
    }
    
    .social-links {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .contact-form {
        padding: 1rem;
    }
    
    .project-header {
        flex-direction: column;
        text-align: center;
    }
    
    .highlight-item {
        flex-direction: column;
        text-align: center;
    }
}

/* Loading Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    transform: translateY(-3px);
    box-shadow: var(--box-shadow-hover);
}