/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color Palette */
    --bg-dark: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.8);
    --bg-nav: rgba(255, 255, 255, 0.9);
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    
    --primary-color: #4f46e5; /* Indigo */
    --primary-glow: rgba(79, 70, 229, 0.3);
    --secondary-color: #db2777; /* Pink */
    
    --border-color: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-color) var(--bg-dark);
}

html::-webkit-scrollbar {
    width: 8px;
}

html::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

html::-webkit-scrollbar-thumb {
    background-color: var(--primary-color);
    border-radius: 20px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    cursor: none; /* For custom cursor */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.section-padding {
    padding: 100px 10%;
}

@media (max-width: 768px) {
    .section-padding {
        padding: 80px 5%;
    }
}

/* Custom Cursor */
.cursor-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    transition: width 0.2s, height 0.2s, background-color 0.2s;
}

.cursor-outline {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: fixed;
    top: 0;
    left: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9998;
    transition: width 0.2s, height 0.2s, border-color 0.2s;
}

/* Utilities */
.highlight {
    color: var(--secondary-color);
}

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

.glass-effect {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 30px;
    font-weight: 500;
    font-family: var(--font-heading);
    transition: var(--transition);
    cursor: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.primary-btn {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
    border: 1px solid transparent;
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--primary-glow);
}

.primary-btn i {
    margin-left: 8px;
    transition: transform 0.3s;
}

.primary-btn:hover i {
    transform: translateX(5px);
}

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

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

/* Section Header */
.section-header {
    margin-bottom: 60px;
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.section-header .line {
    height: 4px;
    width: 60px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    margin: 0 auto;
    border-radius: 2px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 10%;
    background: transparent;
    transition: var(--transition);
    z-index: 1000;
}

.navbar.scrolled {
    background: var(--bg-nav);
    backdrop-filter: blur(10px);
    padding: 15px 10%;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 35px;
    align-items: center;
}

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: var(--transition);
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--text-primary);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
    width: 100%;
}

.nav-btn {
    padding: 8px 20px;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    color: var(--primary-color) !important;
}

.nav-btn::after {
    display: none;
}

.nav-btn:hover {
    background: var(--primary-color);
    color: white !important;
}

/* Hamburger */
.hamburger {
    display: none;
    cursor: none;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 5px 0;
    transition: 0.4s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10%;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    z-index: -1;
}

.hero-content {
    flex: 1;
    max-width: 600px;
    z-index: 2;
}

.hero-content h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.hero-content h1 {
    font-size: 4.5rem;
    margin-bottom: 10px;
    line-height: 1.1;
}

.hero-content h2 {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 25px;
}

.hero-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 40px;
    max-width: 90%;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

/* Hero Visual */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

.blob-shape {
    position: absolute;
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: morph 8s ease-in-out infinite;
    z-index: -1;
    opacity: 0.6;
    filter: blur(20px);
}

@keyframes morph {
    0% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
    50% { border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%; }
    100% { border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%; }
}

.profile-img {
    width: 350px;
    height: 450px;
    object-fit: cover;
    border-radius: 30px;
    border: 2px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    z-index: 2;
}

.glass-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 15px 20px;
    border-radius: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    z-index: 3;
    animation: float 5s ease-in-out infinite;
}

.card-1 {
    top: 10%;
    right: -30px;
}

.card-2 {
    bottom: 10%;
    left: -30px;
    animation-delay: 2.5s;
}

.glass-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.glass-card span {
    font-weight: 600;
    font-family: var(--font-heading);
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0); }
}

/* About Section */
.about {
    background-color: #f1f5f9;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

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

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.stats {
    display: flex;
    gap: 30px;
    margin-top: 40px;
}

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

.stat-item h4 {
    font-size: 2.5rem;
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: 5px;
}

.stat-item span {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skills-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.skill-category h4 {
    margin-bottom: 15px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category h4 i {
    color: var(--primary-color);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-tag {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary-glow);
    border-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* Projects Section */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
}

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

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-glow);
}

.project-img-wrapper {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.85);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    opacity: 0;
    transition: var(--transition);
}

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

.project-link {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transform: translateY(20px);
    transition: var(--transition);
}

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

.project-card:hover .project-link {
    transform: translateY(0);
}

.project-info {
    padding: 25px;
}

.project-category {
    font-size: 0.85rem;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    margin-bottom: 10px;
    display: inline-block;
}

.project-info h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.project-tech {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.project-tech span {
    font-size: 0.8rem;
    background: rgba(0, 0, 0, 0.05);
    padding: 5px 12px;
    border-radius: 15px;
    color: var(--text-secondary);
}

/* Experience Timeline */
.experience {
    background-color: #f1f5f9;
}

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

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    width: 50%;
    margin-bottom: 40px;
}

.timeline-item:nth-child(odd) {
    left: 0;
}

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

.timeline-dot {
    position: absolute;
    width: 20px;
    height: 20px;
    right: -10px;
    background-color: var(--primary-color);
    border: 4px solid var(--bg-dark);
    top: 15px;
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 10px rgba(79, 70, 229, 0.2);
}

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

.timeline-content {
    padding: 30px;
    border-radius: 15px;
    position: relative;
    transition: var(--transition);
}

.timeline-content:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.timeline-content .date {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-glow);
    color: var(--primary-color);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    background: var(--bg-card);
    border-radius: 30px;
    padding: 60px;
    border: 1px solid var(--border-color);
}

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 40px;
}

.detail-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.detail-item .icon {
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    color: var(--primary-color);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.detail-item h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.detail-item p {
    color: var(--text-secondary);
    margin: 0;
}

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

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.03);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.social-icon:hover {
    background: var(--primary-color);
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.contact-form {
    padding: 40px;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: #ffffff;
}

.submit-btn {
    width: 100%;
    border: none;
    cursor: none;
}

/* Footer */
footer {
    padding: 40px 10%;
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.scroll-top {
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-primary);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.scroll-top:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-5px);
}

#academic-cv {
    background-color: var(--bg-dark);
}

.contact {
    background-color: #f1f5f9;
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }

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

.fade-in {
    opacity: 0;
    animation: fadeIn 1.5s forwards;
    animation-delay: 0.5s;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Scroll Reveal Classes */
.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Page Section */
.page-section {
    padding-top: 150px;
    min-height: 100vh;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: 120px;
        gap: 50px;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-content p {
        margin: 0 auto 40px auto;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        padding: 40px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
        z-index: 1001;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        gap: 0;
        flex-direction: column;
        background-color: var(--bg-dark);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.3s;
        justify-content: center;
        z-index: 1000;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 20px 0;
    }
    
    .nav-links li a {
        font-size: 1.5rem;
    }
    
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .profile-img {
        width: 280px;
        height: 350px;
    }
    
    .glass-card {
        padding: 10px 15px;
    }
    
    .glass-card span {
        font-size: 0.8rem;
    }
    
    .timeline::after {
        left: 31px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 70px;
        padding-right: 0;
    }
    
    .timeline-item:nth-child(even) {
        left: 0%;
    }
    
    .timeline-item:nth-child(odd) .timeline-dot,
    .timeline-item:nth-child(even) .timeline-dot {
        left: 21px;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    /* Disable custom cursor on mobile */
    .cursor-dot, .cursor-outline {
        display: none;
    }
    
    body, a, .btn, button, .hamburger {
        cursor: auto;
    }
}