:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e5e7eb;
    --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 40px -10px rgba(0, 0, 0, 0.15);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Mobile Header - Hidden initially */
.mobile-header {
    display: none;
    position: fixed;
    top: -70px; /* Hidden by default */
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    z-index: 1000;
    box-shadow: var(--shadow);
    transition: top 0.3s ease-in-out;
}

.mobile-header.show {
    top: 0;
}

.mobile-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.mobile-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--primary-color);
}

.mobile-logo i {
    font-size: 1.5rem;
}

.mobile-menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.mobile-menu-toggle:hover {
    background-color: var(--bg-secondary);
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    transition: left 0.3s ease;
    z-index: 1001;
    overflow-y: auto;
}

.sidebar.active {
    left: 0;
}

.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.profile-mini {
    display: flex;
    align-items: center;
    gap: 15px;
}

.profile-image-mini {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.profile-info h3 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.profile-info p {
    font-size: 0.9rem;
    opacity: 0.8;
}

.sidebar-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.sidebar-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar-content {
    padding: 20px 0;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li {
    margin-bottom: 5px;
}

.nav-menu .nav-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-menu .nav-link:hover,
.nav-menu .nav-link.active {
    background-color: rgba(255, 255, 255, 0.1);
    border-left-color: white;
}

.nav-menu .nav-link i {
    font-size: 1.2rem;
    width: 20px;
}

.sidebar-contact {
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 20px;
}

.sidebar-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    font-size: 0.9rem;
    opacity: 0.9;
}

.sidebar-contact .contact-item i {
    width: 16px;
}

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Desktop Navigation - Hidden initially */
.desktop-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: fixed;
    top: -80px; /* Hidden by default */
    left: 0;
    right: 0;
    z-index: 100;
    box-shadow: var(--shadow);
    transition: top 0.3s ease-in-out;
}

.desktop-nav.show {
    top: 0;
}

.nav-content {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.desktop-nav .nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
}

.desktop-nav .nav-link:hover,
.desktop-nav .nav-link.active {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Main Content */
.main-content {
    min-height: 100vh;
}

/* Header - Full Screen */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    position: relative;
    overflow: hidden;
    height: 100vh; /* Full screen height */
    display: flex;
    align-items: center;
    justify-content: center;
}

.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 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
}

.profile-image {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 30px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    color: white;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(1); }
    100% { transform: scale(1.05); }
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    animation: slideInUp 1s ease-out;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 30px;
    opacity: 0.9;
    animation: slideInUp 1s ease-out 0.2s both;
}

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

.hero-contact {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    animation: slideInUp 1s ease-out 0.4s both;
}

.hero-contact .contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1rem;
    transition: transform 0.3s ease;
}

.hero-contact .contact-item:hover {
    transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    text-align: center;
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 2rem;
    margin-bottom: 10px;
}

.scroll-indicator p {
    font-size: 0.9rem;
    opacity: 0.8;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Sections */
section {
    padding: 80px 0;
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

.bg-secondary {
    background: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.about-left {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.about-image {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    display: block;
}

.about-text {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.about-text h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    position: relative;
}

.about-text h3::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    text-align: justify;
    color: var(--text-secondary);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 30px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.highlight-item:hover {
    transform: translateX(10px);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 40px;
}

.highlight-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.highlight-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin: 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 25px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.skill-category {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-item span {
    font-weight: 500;
    font-size: 0.95rem;
}

.skill-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    width: 0;
    transition: width 1.5s ease-in-out;
}

/* Experience Section */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-date {
    flex: 0 0 150px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
    background: white;
    padding: 10px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    margin: 0 30px;
    transition: transform 0.3s ease;
}

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

.timeline-content h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.company {
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.timeline-content ul {
    list-style: none;
    padding-left: 0;
}

.timeline-content li {
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.timeline-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.project-content {
    padding: 30px;
}

.project-content h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.project-tech span {
    background: var(--bg-secondary);
    color: var(--primary-color);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 500;
}

.project-links a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.project-links a:hover {
    color: var(--secondary-color);
}

/* Contact Section */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
}

.contact-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-5px);
}

.contact-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.contact-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.contact-card p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Footer */
footer {
    background: var(--text-primary);
    color: white;
    text-align: center;
    padding: 40px 0;
}

footer i {
    color: #ef4444;
}

/* Responsive Design */
@media (max-width: 768px) {
    .mobile-header {
        display: block;
    }

    .desktop-nav {
        display: none;
    }

    .container {
        padding: 0 15px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content .subtitle {
        font-size: 1.2rem;
    }

    .hero-contact {
        gap: 15px;
    }

    .hero-contact .contact-item {
        font-size: 1rem;
    }

    section {
        padding: 60px 0;
    }

    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-left {
        order: 2;
    }

    .about-text {
        order: 1;
    }

    .about-image img {
        height: 400px;
    }

    .about-stats {
        flex-direction: row;
        justify-content: space-between;
    }

    .stat-item {
        padding: 20px 15px;
        flex: 1;
        margin: 0 5px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .highlight-item {
        padding: 15px;
    }

    .highlight-item i {
        font-size: 1.5rem;
        min-width: 30px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .skill-category {
        padding: 30px;
    }

    .timeline::before {
        left: 30px;
    }

    .timeline-item {
        flex-direction: column !important;
        align-items: flex-start;
        padding-left: 60px;
    }

    .timeline-date {
        position: absolute;
        left: -75px;
        top: 0;
        flex: none;
        width: 120px;
    }

    .timeline-content {
        margin: 20px 0 0 0;
        width: 100%;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .contact-info-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .contact-card {
        padding: 30px;
    }
}

@media (max-width: 480px) {
    .profile-image {
        width: 120px;
        height: 120px;
        font-size: 48px;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .hero-content .subtitle {
        font-size: 1rem;
    }

    .hero-contact {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .about-stats {
        flex-direction: column;
        gap: 20px;
    }

    .timeline-date {
        position: relative;
        left: 0;
        margin-bottom: 10px;
    }

    .timeline-item {
        padding-left: 0;
    }

    .timeline::before {
        display: none;
    }
}
/* Fix mobile sidebar */
@media (max-width: 480px) {
    .sidebar {
        width: 280px;
        left: -280px;
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .mobile-header {
        display: block !important;
        position: fixed;
        top: 0;
        width: 100%;
        z-index: 1002;
    }
    
    .hero-section {
        padding-top: 70px;
    }
    
    .sidebar-content {
        height: calc(100vh - 120px);
        overflow-y: auto;
    }
}
/* Fix desktop navigation */
.sidebar.active ~ .main-content .mobile-header,
body:has(.sidebar.active) .mobile-header {
    display: none;
}

.sidebar {
    z-index: 9999 !important;
}

.sidebar-overlay {
    z-index: 9998 !important;
}
.sidebar-contact .contact-item a {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    opacity: 0.9;
    transition: opacity 0.3s ease;
}

.sidebar-contact .contact-item a:hover {
    opacity: 1;
}