:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #f59e0b;
    --success: #10b981;
    --bg-dark: #0f172a;
    --bg-medium: #1e293b;
    --bg-light: #f8fafc;
    --text-dark: #0f172a;
    --text-light: #f8fafc;
    --text-gray: #64748b;
    --border: #e2e8f0;
}

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

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
}

.logo-icon {
    font-size: 2rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

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

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

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

.arrow {
    font-size: 0.7rem;
    transition: transform 0.3s;
}

.dropdown:hover .arrow {
    transform: rotate(180deg);
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    padding: 1rem 0;
    min-width: 220px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.3s;
    font-size: 0.9rem;
}

.dropdown-content a:hover {
    background: var(--bg-light);
    color: var(--primary);
    padding-left: 2rem;
}

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

.btn-primary, .btn-secondary, .btn-hero, .btn-hero-outline, .btn-cta, .btn-cta-outline {
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 8rem 2rem 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    top: -200px;
    left: -100px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: linear-gradient(135deg, var(--accent), var(--secondary));
    bottom: -150px;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--success), var(--primary));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.9);
    }
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: fadeInUp 1s ease;
    text-align: center;
    max-width: 900px;
}

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

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.1));
    color: var(--primary);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid var(--primary);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
    animation: slideInLeft 1s ease;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.title-line:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

.btn-hero {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.btn-hero:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.btn-hero-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.btn-hero-outline:hover {
    background: var(--primary);
    color: white;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    max-width: 800px;
    margin: 0 auto;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-gray);
    margin-top: 0.3rem;
}

/* Hero images removed - clean centered layout */

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: var(--text-gray);
    font-size: 0.9rem;
    animation: fadeIn 2s ease;
}

.scroll-arrow {
    margin-top: 0.5rem;
    animation: bounceDown 2s infinite;
}

@keyframes bounceDown {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}

/* Features Section */
.features {
    padding: 6rem 2rem;
    background: white;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
}

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

.feature-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: 20px;
    padding: 0;
    transition: all 0.3s ease;
    cursor: pointer;
    overflow: hidden;
}

.feature-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.feature-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.feature-card:hover .feature-image img {
    transform: scale(1.1);
}

.feature-card .feature-icon,
.feature-card h3,
.feature-card p,
.feature-card .feature-link {
    padding: 0 2rem;
}

.feature-card .feature-icon {
    padding-top: 1.5rem;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    padding-bottom: 0;
}

.feature-card .feature-link {
    padding-bottom: 2rem;
    display: inline-block;
}

.feature-link {
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.feature-link:hover {
    margin-left: 10px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    padding: 6rem 2rem;
    text-align: center;
}

.cta-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 900;
    color: white;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn-cta {
    background: white;
    color: var(--primary);
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.3);
}

.btn-cta-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
    font-size: 1.1rem;
    padding: 1rem 2.5rem;
}

.btn-cta-outline:hover {
    background: white;
    color: var(--primary);
}

/* Footer */
.footer {
    background: var(--bg-dark);
    color: var(--text-light);
    padding: 4rem 2rem 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-col h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.footer-col p {
    color: var(--text-gray);
    line-height: 1.8;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.8rem;
}

.footer-col ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-gray);
}

/* Chatbot */
.chatbot-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    border-radius: 50px;
    padding: 1rem 1.5rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
    z-index: 999;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.chatbot-toggle:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.4);
}

.chat-icon {
    font-size: 1.5rem;
}

.chatbot-container {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: 380px;
    height: 550px;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    display: none;
    flex-direction: column;
    z-index: 1000;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chatbot-container.active {
    display: flex;
}

.chatbot-header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 1.5rem;
    border-radius: 20px 20px 0 0;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.chatbot-avatar {
    font-size: 2rem;
}

.chatbot-title h4 {
    margin: 0;
    font-size: 1.2rem;
}

.chatbot-status {
    font-size: 0.8rem;
    opacity: 0.9;
}

.chatbot-close {
    margin-left: auto;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

.chatbot-messages {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
    background: var(--bg-light);
}

.bot-message, .user-message {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    animation: messageSlide 0.3s ease;
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-message {
    flex-direction: row-reverse;
}

.message-avatar {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.message-content {
    background: white;
    padding: 1rem;
    border-radius: 15px;
    max-width: 70%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.user-message .message-content {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.quick-replies button {
    background: var(--bg-light);
    border: 1px solid var(--border);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s;
}

.quick-replies button:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.chatbot-input {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.8rem;
}

.chatbot-input input {
    flex: 1;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 25px;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
}

.chatbot-input input:focus {
    outline: none;
    border-color: var(--primary);
}

.chatbot-input button {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

.chatbot-input button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(99, 102, 241, 0.3);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-container {
        padding: 0 2rem;
    }

    .hero-title {
        font-size: 4rem;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-actions {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        padding: 6rem 1rem 3rem;
    }

    .hero-title {
        font-size: 3rem;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-cta {
        flex-direction: column;
    }

    .section-title {
        font-size: 2rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .chatbot-container {
        width: calc(100vw - 2rem);
        right: 1rem;
        left: 1rem;
    }
}

/* Projects & Internships Section */
.projects-section {
    padding: 6rem 2rem;
    background: var(--bg-light);
}

.projects-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 1rem 3rem;
    border: 2px solid var(--primary);
    background: white;
    color: var(--primary);
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.tab-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.2);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeInUp 0.5s ease;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 4rem;
}

.project-card {
    background: white;
    border: 2px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.project-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 1.5rem 2rem 0.5rem;
    color: var(--primary);
}

.project-card p {
    color: var(--text-gray);
    margin: 0 2rem;
    font-weight: 600;
}

.project-card ul {
    list-style: none;
    margin: 1rem 2rem;
    padding: 0;
}

.project-card ul li {
    padding: 0.4rem 0;
    color: var(--text-gray);
    position: relative;
    padding-left: 1.5rem;
}

.project-card ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 700;
}

.project-btn {
    display: block;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 1rem;
    margin: 1.5rem 2rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
}

.project-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
}

.projects-benefits {
    background: white;
    border-radius: 20px;
    padding: 3rem;
    margin-top: 3rem;
    border: 2px solid var(--border);
}

.projects-benefits h3 {
    text-align: center;
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 900;
    margin-bottom: 2rem;
    color: var(--text-dark);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-item {
    text-align: center;
}

.benefit-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 1rem;
}

.benefit-item h4 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.benefit-item p {
    color: var(--text-gray);
    line-height: 1.6;
}

@media (max-width: 1024px) {
    .hero-image-slider {
        max-width: 450px;
        height: 550px;
    }
}

@media (max-width: 768px) {
    .hero-image-slider {
        max-width: 100%;
        height: 400px;
        margin-top: 2rem;
    }

    .projects-tabs {
        flex-direction: column;
    }

    .tab-btn {
        width: 100%;
    }

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

    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* Remove duplicate media query and clean up */
@media (max-width: 1024px) {
    .hero-container {
        padding: 0 2rem;
    }
}