/* ==========================================================================
   CSS Variables & Design System
   ========================================================================== */
:root {
    /* Colors - Dark Mode Mesh Theme */
    --bg-dark: #0a0a0f;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    
    --accent-1: #6366f1; /* Indigo */
    --accent-2: #a855f7; /* Purple */
    --accent-3: #ec4899; /* Pink */
    --accent-4: #3b82f6; /* Blue */
    
    /* Glassmorphism */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
    
    /* Spacing */
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 2rem;
    --space-xl: 4rem;
    --space-2xl: 8rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-2xl) 0;
    position: relative;
    z-index: 10;
}

/* ==========================================================================
   Mesh Gradient Background
   ========================================================================== */
.mesh-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    overflow: hidden;
    background: var(--bg-dark);
}

.color-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    animation: float 20s infinite alternate cubic-bezier(0.4, 0, 0.2, 1);
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, var(--accent-1) 0%, transparent 70%);
    animation-delay: 0s;
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
    animation-delay: -5s;
}

.blob-3 {
    top: 40%;
    left: 60%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, var(--accent-3) 0%, transparent 70%);
    animation-delay: -10s;
}

.blob-4 {
    top: 70%;
    left: 10%;
    width: 45vw;
    height: 45vw;
    background: radial-gradient(circle, var(--accent-4) 0%, transparent 70%);
    animation-delay: -15s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(5%, 10%) scale(1.1); }
    66% { transform: translate(-5%, 5%) scale(0.9); }
    100% { transform: translate(10%, -5%) scale(1.05); }
}

/* ==========================================================================
   Glassmorphism Utilities
   ========================================================================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 100px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    color: white;
    border: none;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.6);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem 0;
    z-index: 100;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

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

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

.logo span {
    color: var(--accent-3);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-1), var(--accent-3));
    transition: var(--transition-normal);
}

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

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.section-subtitle {
    color: var(--accent-3);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    background: linear-gradient(to right, #fff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.greeting {
    font-size: 1.2rem;
    color: var(--accent-3);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.hero-title {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2), var(--accent-3));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

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

/* Hero Image Card */
.image-card {
    position: relative;
    padding: 1.5rem;
    border-radius: 32px;
    aspect-ratio: 4/5;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.floating-badge {
    position: absolute;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.2rem;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    animation: float-badge 6s infinite alternate ease-in-out;
}

.floating-badge i {
    color: var(--accent-3);
    font-size: 1.2rem;
}

.badge-1 {
    top: 15%;
    left: -10%;
    animation-delay: 0s;
}

.badge-2 {
    bottom: 15%;
    right: -10%;
    animation-delay: -3s;
}

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

/* ==========================================================================
   Experience Section
   ========================================================================== */
.experience-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xl);
}

.experience-card {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    transition: var(--transition-normal);
}

.experience-card:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
}

.card-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--accent-1);
    border: 1px solid var(--glass-border);
}

.experience-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.exp-duration {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: var(--accent-3);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.exp-role {
    font-weight: 600;
    font-size: 1.2rem;
    margin-bottom: 1rem;
}

.exp-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.skills-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.skill-category h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
}

.skill-category h3 i {
    color: var(--accent-2);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.2rem;
    border-radius: 12px;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    transition: var(--transition-fast);
}

.tag:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-1);
    transform: translateY(-2px);
}

.tag em {
    font-style: normal;
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--text-secondary);
}

/* ==========================================================================
   Education Section
   ========================================================================== */
.education-wrapper {
    max-width: 600px;
    margin: 0 auto;
}

.education-card {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: var(--transition-normal);
}

.education-card:hover {
    transform: translateX(10px);
    border-color: rgba(255, 255, 255, 0.15);
}

.edu-icon {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(236, 72, 153, 0.2), rgba(59, 130, 246, 0.2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--accent-3);
    border: 1px solid var(--glass-border);
    flex-shrink: 0;
}

.edu-details h3 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.edu-major {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.edu-status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ==========================================================================
   Testimonials Section
   ========================================================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.testimonial-card {
    padding: 2.5rem;
    transition: var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.05);
}

.stars {
    color: #fbbf24;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 0.2rem;
}

.review-text {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

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

.reviewer-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
}

.reviewer-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
}

.reviewer-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact-wrapper {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
}

.contact-card {
    padding: 3rem 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: var(--transition-normal);
}

.contact-card:hover {
    transform: translateY(-10px);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.06);
}

.contact-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    transition: var(--transition-normal);
}

.contact-card:hover .contact-icon {
    background: var(--accent-1);
    transform: scale(1.1);
}

.contact-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.contact-link {
    color: var(--accent-3);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    border-top: 1px solid var(--glass-border);
    padding: 3rem 0;
    margin-top: 4rem;
    position: relative;
    z-index: 10;
    background: rgba(10, 10, 15, 0.4);
    backdrop-filter: blur(10px);
}

.footer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
}

.footer-links a:hover {
    color: var(--text-primary);
}

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

/* ==========================================================================
   Animations (Triggered via JS)
   ========================================================================== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-up.visible, .fade-in-left.visible {
    opacity: 1;
    transform: translate(0);
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

/* ==========================================================================
   Responsive Design
   ========================================================================== */
@media (max-width: 992px) {
    .hero-title { font-size: 4rem; }
    .hero-container { grid-template-columns: 1fr; text-align: center; }
    .hero-actions { justify-content: center; }
    .hero-desc { margin: 0 auto 2.5rem; }
    .experience-grid { grid-template-columns: 1fr; }
    .badge-1 { left: 0; }
    .badge-2 { right: 0; }
}

@media (max-width: 768px) {
    .nav-links, .nav-btn { display: none; }
    .mobile-menu-btn { display: block; }
    
    /* Mobile Menu Active State */
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(20px);
        padding: 2rem;
        border-bottom: 1px solid var(--glass-border);
        text-align: center;
    }
    
    .hero-title { font-size: 3rem; }
    .hero-subtitle { font-size: 1.4rem; }
    .section-title { font-size: 2rem; }
    
    .hero { padding-top: 8rem; }
    .hero-actions { flex-direction: column; }
    .btn-primary, .btn-secondary { width: 100%; justify-content: center; }
}