/* ===== RESET & GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #8b5cf6;
    --secondary-color: #a78bfa;
    --accent-color: #c084fc;
    --text-dark: #ffffff;
    --text-light: #d1d5db;
    --text-white: #ffffff;
    --bg-light: #0f0f1a;
    --bg-white: #1a1a2e;
    --bg-dark: #0a0a12;
    --bg-card: #16162a;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.7);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.8);
    --glow-purple: 0 0 20px rgba(139, 92, 246, 0.3);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
    background: var(--bg-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 18, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 0 rgba(139, 92, 246, 0.1);
    z-index: 1000;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease, border-color 0.3s ease;
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
    will-change: transform;
    transform: translateY(0);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md), var(--glow-purple);
    border-bottom-color: rgba(139, 92, 246, 0.3);
}

.navbar.hidden {
    transform: translateY(-100%);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.brand-link:hover {
    opacity: 0.8;
}

.brand-logo {
    height: 45px;
    width: 45px;
    object-fit: contain;
    border-radius: 8px;
}

.brand-name {
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@media (max-width: 768px) {
    .brand-logo {
        height: 36px;
        width: 36px;
    }
    
    .brand-name {
        font-size: 1.15rem;
    }
}

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

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

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

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: all 0.3s ease;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding-top: 160px;
    background: var(--bg-dark);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.gradient-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, rgba(139, 92, 246, 0.15), transparent 50%),
                radial-gradient(ellipse at bottom, rgba(192, 132, 252, 0.1), transparent 50%),
                linear-gradient(135deg, #0a0a12 0%, #0f0f1a 50%, #0a0a12 100%);
    opacity: 1;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.floating-shapes {
    position: absolute;
    width: 100%;
    height: 100%;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.shape-2 {
    width: 350px;
    height: 350px;
    background: var(--accent-color);
    bottom: 20%;
    right: 10%;
    animation-delay: 7s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--secondary-color);
    top: 50%;
    right: 30%;
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, -30px) rotate(120deg); }
    66% { transform: translate(-20px, 20px) rotate(240deg); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.title-line {
    display: block;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
    color: var(--text-dark);
}

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

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 30px rgba(139, 92, 246, 0.5));
}

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

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-light);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeInUp 0.8s ease 0.8s forwards;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--text-white);
    box-shadow: var(--shadow-md), var(--glow-purple);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl), 0 0 30px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: rgba(139, 92, 246, 0.15);
    color: #e0aaff;
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-2px);
    box-shadow: var(--glow-purple);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    font-size: 0.875rem;
    opacity: 0;
    animation: fadeIn 1s ease 1.5s forwards;
}

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

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-left: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(-45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: rotate(-45deg) translateY(0); }
    40% { transform: rotate(-45deg) translateY(10px); }
    60% { transform: rotate(-45deg) translateY(5px); }
}

/* ===== SECTION STYLES ===== */
section {
    padding: 5rem 0;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.3));
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== ABOUT SECTION ===== */
.about {
    background: var(--bg-dark);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    text-align: center;
}

.about-intro {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-light);
    font-weight: 400;
}

.about-text p {
    color: var(--text-light);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(139, 92, 246, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), var(--glow-purple);
    border-color: var(--primary-color);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* ===== EDUCATION SECTION ===== */
.education-section {
    max-width: 800px;
    margin: 4rem auto 0;
}

.subsection-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.education-card {
    background: var(--bg-card);
    padding: 0;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(139, 92, 246, 0.2);
    overflow: hidden;
    transition: all 0.3s ease;
}

.education-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), var(--glow-purple);
    border-color: var(--primary-color);
}

.education-banner {
    width: 100%;
    overflow: hidden;
    position: relative;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.education-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    object-position: center center;
    transition: transform 0.3s ease;
}

.education-card:hover .education-banner img {
    transform: scale(1.05);
}

.education-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.education-icon svg {
    width: 40px;
    height: 40px;
    color: var(--text-white);
}

.education-details {
    padding: 2rem;
}

.education-details h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-white);
}

.education-details .university {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.education-details .location {
    color: var(--text-light);
    font-size: 1rem;
}

/* ===== SERVICES SECTION ===== */
.services {
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid rgba(139, 92, 246, 0.2);
}

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

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl), var(--glow-purple);
    border-color: var(--primary-color);
    background: rgba(139, 92, 246, 0.05);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon svg {
    width: 32px;
    height: 32px;
    color: var(--text-white);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-white);
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== EXPERIENCE SECTION ===== */
.experience {
    background: var(--bg-dark);
}

/* Timeline Styles */
.timeline {
    position: relative;
    max-width: 1000px;
    margin: 3rem auto;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-color), var(--accent-color));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    display: flex;
    justify-content: flex-start;
    padding-left: 0;
    padding-right: calc(50% + 2rem);
    opacity: 1;
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
    padding-left: calc(50% + 2rem);
    padding-right: 0;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background: var(--bg-dark);
    border: 4px solid var(--primary-color);
    border-radius: 50%;
    z-index: 1;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
}

.timeline-content {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s ease;
    width: 100%;
    opacity: 1;
    visibility: visible;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), var(--glow-purple);
    border-color: var(--primary-color);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-header h3 {
    font-size: 1.5rem;
    color: var(--text-white);
    margin: 0;
}

.timeline-location {
    font-size: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.timeline-role {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-light);
    margin: 0.5rem 0;
    font-style: italic;
}

.timeline-date {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.timeline-achievements {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.timeline-achievements li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-light);
    line-height: 1.6;
}

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

.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(139, 92, 246, 0.2);
    transition: all 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl), var(--glow-purple);
    border-color: var(--primary-color);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-white);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--text-white);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.skill-tag.visible {
    animation: popIn 0.4s ease forwards;
}

@keyframes popIn {
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.skill-tag:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-md);
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-light);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-item {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 16px;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(139, 92, 246, 0.2);
}

.contact-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg), var(--glow-purple);
    border-color: var(--primary-color);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--text-white);
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-white);
}

.contact-details a,
.contact-details p {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-details a:hover {
    color: var(--primary-color);
}

/* Reveal Button Styles */
.reveal-btn {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    color: var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    font-family: inherit;
}

.reveal-btn:hover {
    background: rgba(139, 92, 246, 0.2);
    border-color: var(--primary-color);
    transform: translateX(5px);
}

.reveal-btn:active {
    transform: scale(0.95);
}

.contact-link {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
    display: inline-block;
    animation: fadeInSlide 0.5s ease forwards;
}

.contact-link.hidden {
    display: none;
}

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

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

.contact-item[data-revealed="true"] .reveal-btn {
    display: none;
}

.contact-item[data-revealed="true"] {
    border-color: var(--primary-color);
    background: rgba(139, 92, 246, 0.05);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
}

.footer p {
    margin: 0.5rem 0;
    opacity: 0.8;
}

.footer-tagline {
    font-size: 0.9rem;
    font-style: italic;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-card);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid rgba(139, 92, 246, 0.2);
        padding: 2rem 0;
        gap: 1rem;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero {
        padding-top: 120px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    section {
        padding: 3rem 0;
    }

    .services-grid,
    .skills-container,
    .contact-info {
        grid-template-columns: 1fr;
    }

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

    /* Education Card Mobile */
    .education-banner {
        /* Height is auto, image will scale naturally */
    }
    
    .education-banner img {
        object-fit: contain;
    }
    
    .education-details {
        text-align: center;
        padding: 1.5rem;
    }

    /* Timeline Mobile */
    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(even) {
        padding-left: 50px;
        padding-right: 0;
    }

    .timeline-marker {
        left: 20px;
        transform: translateX(-50%);
    }

    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== UTILITIES ===== */
html.lenis {
    height: auto;
}

.lenis.lenis-smooth {
    scroll-behavior: auto;
}

.lenis.lenis-smooth [data-lenis-prevent] {
    overscroll-behavior: contain;
}

.lenis.lenis-stopped {
    overflow: hidden;
}

.lenis.lenis-scrolling iframe {
    pointer-events: none;
}

/* Animation helper classes */
.fade-in,
.slide-in-left,
.slide-in-right,
.scale-in {
    opacity: 1;
    transition: opacity 0.3s ease;
}