/* CSS Variables for Dark Mode */
:root {
    /* Light mode colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent-color: #6366f1;
    --card-bg: #ffffff;
    --border-color: #e5e7eb;
    --shadow: rgba(0, 0, 0, 0.1);
    --hero-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --navbar-bg: rgba(255, 255, 255, 0.95);
    --navbar-scrolled: rgba(255, 255, 255, 0.98);
}

[data-theme="dark"] {
    /* Dark mode colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --accent-color: #8b5cf6;
    --card-bg: #2d2d2d;
    --border-color: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
    --hero-gradient: linear-gradient(135deg, #4c1d95 0%, #581c87 100%);
    --navbar-bg: rgba(26, 26, 26, 0.95);
    --navbar-scrolled: rgba(26, 26, 26, 0.98);
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: var(--navbar-scrolled);
    box-shadow: 0 2px 20px var(--shadow);
    backdrop-filter: blur(20px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: 50px;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    border-color: var(--accent-color);
    transform: scale(1.05);
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
    position: absolute;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.theme-toggle .sun-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.theme-toggle .moon-icon {
    opacity: 0;
    transform: rotate(180deg);
}

[data-theme="dark"] .theme-toggle .sun-icon {
    opacity: 0;
    transform: rotate(-180deg);
}

[data-theme="dark"] .theme-toggle .moon-icon {
    opacity: 1;
    transform: rotate(0deg);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
    transform-origin: center;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--hero-gradient);
    color: white;
    overflow: hidden;
    padding-top: 320px;
    padding-bottom: 130px;
}

.hero::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="25" cy="25" r="1" fill="rgba(255,255,255,0.1)"/><circle cx="75" cy="75" r="1" fill="rgba(255,255,255,0.05)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(50px);
}

.hero-name {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(255, 215, 0, 0.3);
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.9);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    opacity: 0;
    transform: translateY(30px);
}

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: #ffd700;
    color: #333;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
    background: #ffed4e;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: white;
    color: #333;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 255, 255, 0.2);
}

.hero-visual {
    position: relative;
    height: 500px;
    width: 100%;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(15px);
    padding: 1rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    border: 1px solid rgba(255, 255, 255, 0.3);
    opacity: 0;
    transform: translateZ(0);
    will-change: transform;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    font-size: 0.9rem;
    white-space: nowrap;
}

.card-1 { top: 15%; left: 5%; }
.card-2 { top: 5%; right: 15%; }
.card-3 { top: 45%; left: -5%; }
.card-4 { top: 65%; right: 5%; }
.card-5 { top: 35%; right: 25%; }

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

.scroll-line {
    width: 2px;
    height: 30px;
    background: white;
    animation: scroll-bounce 2s infinite;
    border-radius: 1px;
}

@keyframes scroll-bounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(10px); opacity: 0.5; }
}

/* Section Styles */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    opacity: 0;
    transform: translateY(30px);
    font-weight: 700;
    color: var(--text-primary);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, var(--accent-color), #8b5cf6);
    border-radius: 2px;
}

/* About Section */
.about {
    padding: 100px 0;
    background: var(--bg-secondary);
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 49%, rgba(99, 102, 241, 0.03) 50%, transparent 51%);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    position: relative;
    z-index: 1;
}

.about-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    color: var(--text-secondary);
    line-height: 1.8;
}

.stats {
    display: flex;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    padding: 1rem;
    background: var(--card-bg);
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--shadow);
    flex: 1;
    border: 1px solid var(--border-color);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-category {
    opacity: 0;
    transform: translateX(50px);
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--shadow);
    border: 1px solid var(--border-color);
}

.skill-category h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 600;
}

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

.skill-tag {
    background: linear-gradient(45deg, var(--accent-color), #8b5cf6);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.skill-tag:hover {
    transform: translateY(-2px);
}

/* Experience Section */
.experience {
    padding: 100px 0;
    background: var(--bg-primary);
}

.timeline {
    position: relative;
    margin-bottom: 4rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-color), #8b5cf6);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateX(-50px);
}

.timeline-marker {
    position: absolute;
    left: 22px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--accent-color);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 4px var(--accent-color);
    z-index: 2;
}

.timeline-content {
    margin-left: 80px;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow);
}

.timeline-header {
    margin-bottom: 1rem;
}

.timeline-header h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.company {
    color: var(--accent-color);
    font-weight: 600;
    margin-right: 1rem;
}

.duration {
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: var(--bg-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
}

.timeline-description {
    list-style: none;
}

.timeline-description li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.achievements h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.achievement-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow);
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.achievement-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow);
}

.achievement-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.achievement-card h4 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.achievement-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Projects Section */
.projects {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow);
    transition: transform 0.3s ease;
    opacity: 0;
    transform: translateY(50px);
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px var(--shadow);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-link {
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border: 2px solid white;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.project-link:hover {
    background: white;
    color: #333;
    transform: scale(1.05);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.2rem;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

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

.project-tech span {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-primary);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    opacity: 0;
    transform: translateX(-30px);
    font-weight: 600;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateX(-30px);
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateX(-30px);
    padding: 0.75rem;
    border-radius: 10px;
    transition: background 0.3s ease;
}

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

.contact-icon {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.contact-item a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--accent-color);
}

.contact-form {
    opacity: 0;
    transform: translateX(30px);
    background: var(--bg-secondary);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background: var(--card-bg);
    color: var(--text-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Using class instead of ID */
.getintouch {
    width: 100%;
    max-width: 600px;
    height: auto;
    display: block;
    margin: 0 auto;
  }
  
  @media screen and (max-width: 768px) {
    .getintouch {
      max-width: 500px;
    }
  }
  
  @media screen and (max-width: 480px) {
    .getintouch {
      max-width: 400px;
      padding: 0 20px;
    }
  }
  

/* Footer */
.footer {
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--navbar-bg);
        box-shadow: 0 2px 20px var(--shadow);
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        backdrop-filter: blur(10px);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    
    .theme-toggle .sun-icon,
    .theme-toggle .moon-icon {
        font-size: 1rem;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-visual {
        height: 300px;
        order: -1;
    }
    
    .floating-card {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
    }
    
    .card-1 { top: 10%; left: 10%; }
    .card-2 { top: 20%; right: 10%; }
    .card-3 { top: 50%; left: 5%; }
    .card-4 { top: 70%; right: 15%; }
    .card-5 { top: 40%; right: 30%; }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-marker {
        left: 7px;
    }
    
    .timeline-content {
        margin-left: 40px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .achievement-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
    }
    
    .floating-card {
        font-size: 0.7rem;
        padding: 0.4rem 0.8rem;
    }
    
    .timeline-content {
        margin-left: 30px;
        padding: 1.5rem;
    }
    
    .project-content,
    .achievement-card {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
}