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

:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --dark-bg: #0f0c29;
    --darker-bg: #0a0819;
    --text-light: #ffffff;
    --text-gray: #a0aec0;
    --card-bg: rgba(255, 255, 255, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 12, 41, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transition: var(--transition);
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 6rem 2rem 2rem;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    top: 10%;
    right: -10%;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(240, 147, 251, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    bottom: 10%;
    left: -5%;
    animation: float 8s ease-in-out infinite;
}

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

.hero-content {
    max-width: 1200px;
    text-align: center;
    z-index: 1;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    font-weight: 800;
}

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

.subtitle {
    font-size: 2rem;
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.description {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

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

.btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-light);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.hero-social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.hero-social-link {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 1.2rem;
}

.hero-social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    border-color: transparent;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 15px;
    position: relative;
}

.mouse::before {
    content: '';
    position: absolute;
    width: 4px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 2px;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(15px);
    }
}

/* Fade in animations */
.fade-in {
    animation: fadeIn 1s ease-in;
}

.fade-in-delay-1 {
    animation: fadeIn 1s ease-in 0.3s both;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease-in 0.6s both;
}

.fade-in-delay-3 {
    animation: fadeIn 1s ease-in 0.9s both;
}

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

/* Section Styling */
section {
    padding: 5rem 2rem;
}

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

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* About Section */
.about {
    background: rgba(255, 255, 255, 0.02);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.image-placeholder {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.4);
}

.image-placeholder i {
    font-size: 8rem;
    color: var(--text-light);
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-gray);
    font-size: 1.1rem;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.skill-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.skill-item:hover {
    transform: translateY(-5px);
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-color);
}

.skill-item i {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
}

.timeline-item:nth-child(odd) {
    padding-right: 3rem;
    text-align: right;
}

.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: 3rem;
}

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 50%;
    top: 0;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.8);
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

.timeline-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-color);
}

.timeline-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.timeline-content h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.timeline-date {
    color: var(--text-gray);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 1rem;
}

.timeline-content p {
    color: var(--text-gray);
}

/* Education */
.education {
    background: rgba(255, 255, 255, 0.02);
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.education-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.education-card:hover {
    transform: translateY(-5px);
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-color);
    box-shadow: 0 10px 40px rgba(102, 126, 234, 0.2);
}

.education-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.education-icon i {
    font-size: 2rem;
    color: var(--text-light);
}

.education-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.education-content h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.education-content .degree {
    color: var(--text-gray);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.education-content .edu-date {
    color: var(--accent-color);
    font-size: 0.95rem;
    font-weight: 600;
}

/* AI Chat Section */
.ai-chat {
    background: rgba(255, 255, 255, 0.02);
}

.chat-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.chat-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
}

.chat-messages {
    height: 500px;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
}

.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

.message {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    animation: messageSlideIn 0.3s ease;
}

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

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

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.2rem;
}

.bot-message .message-avatar {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--text-light);
}

.user-message .message-avatar {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-light);
}

.message-content {
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem 1.5rem;
    border-radius: 15px;
    max-width: 70%;
}

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

.message-content p {
    margin: 0;
    color: var(--text-light);
    line-height: 1.6;
}

.chat-input-container {
    display: flex;
    padding: 1.5rem;
    gap: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    padding: 1rem 1.5rem;
    color: var(--text-light);
    font-size: 1rem;
    transition: var(--transition);
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

.chat-send-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    color: var(--text-light);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.chat-send-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

.suggested-questions {
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.suggested-questions p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.suggestion-btn {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
    margin: 0.25rem;
}

.suggestion-btn:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Projects */
.projects {}

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

.project-card {
    background: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
    border-color: var(--primary-color);
}

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

.project-image i {
    font-size: 4rem;
    color: var(--text-light);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-content p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.project-tags span {
    background: rgba(102, 126, 234, 0.2);
    color: var(--primary-color);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
}

.project-links {
    display: flex;
    gap: 1rem;
}

.project-link {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Contact */
.contact-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary-color);
}

.contact-item i {
    font-size: 2rem;
    color: var(--primary-color);
}

.contact-item h4 {
    margin-bottom: 0.3rem;
}

.contact-item p {
    color: var(--text-gray);
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.social-link {
    width: 50px;
    height: 50px;
    background: var(--card-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    transform: translateY(-3px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: var(--text-light);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(102, 126, 234, 0.05);
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem;
    background: var(--darker-bg);
    color: var(--text-gray);
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--darker-bg);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

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

    .subtitle {
        font-size: 1.5rem;
    }

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

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

    .timeline::before {
        left: 0;
    }

    .timeline-item {
        width: 100%;
        padding-left: 3rem !important;
        text-align: left !important;
        padding-right: 0 !important;
        margin-left: 0 !important;
    }

    .timeline-item .timeline-dot {
        left: -10px !important;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}