/* Glassmorphism CSS - Frosted Glass, Transparency, Modern Aesthetic */
:root {
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.2);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(12px);
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #f43f5e;
    --accent-light: #fb7185;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --bg-dark: #0a0a2a;
    --bg-darker: #050514;
    
    /* Glassmorphism specific */
    --border-radius-lg: 28px;
    --border-radius-md: 20px;
    --border-radius-sm: 16px;
    --transition-smooth: all 0.4s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

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

.sphere-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4), rgba(79, 70, 229, 0.1));
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.sphere-2 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(244, 63, 94, 0.3), rgba(244, 63, 94, 0.05));
    bottom: -200px;
    right: -200px;
    animation-delay: 5s;
}

.sphere-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.3), rgba(16, 185, 129, 0.05));
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 10s;
}

.sphere-4 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.3), rgba(245, 158, 11, 0.05));
    bottom: 20%;
    left: 10%;
    animation-delay: 15s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

section {
    padding: 80px 0;
    position: relative;
}

/* Glass Card Base */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--glass-shadow);
}

.glass-card-sm {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--glass-shadow);
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 42, 0.7);
    backdrop-filter: blur(12px);
    z-index: 1000;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--glass-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.logo-title {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s ease;
}

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

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

.mobile-menu-btn {
    display: none;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    font-size: 1.5rem;
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-icon {
    width: 70px;
    height: 70px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.2rem;
    font-size: 2rem;
    color: var(--primary);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Hero Section */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    padding: 2.5rem;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    padding: 0.5rem 1.2rem;
    border-radius: 60px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 1.5rem;
    border: 1px solid var(--glass-border);
}

.hero-title {
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -1px;
}

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

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 0.9rem 2rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 60px;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.glass-circle {
    width: 350px;
    height: 350px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 2px solid var(--glass-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--glass-shadow);
    animation: floatGlass 6s ease-in-out infinite;
}

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

.glass-circle-inner {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    overflow: hidden;
    background: var(--bg-darker);
}

.profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.glass-circle:hover .profile-img {
    transform: scale(1.05);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.skill-card {
    padding: 2rem;
    transition: var(--transition-smooth);
}

.skill-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.skill-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.6rem;
    color: white;
}

.skill-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
}

.skill-list {
    list-style: none;
}

.skill-list li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.skill-list li i {
    color: var(--primary);
    font-size: 0.8rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 2rem;
}

.project-card {
    padding: 1.8rem;
    transition: var(--transition-smooth);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.2rem;
}

.project-icon {
    font-size: 2.5rem;
    color: var(--primary);
}

.project-links a {
    color: var(--text-muted);
    font-size: 1.2rem;
    transition: var(--transition-smooth);
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--glass-border);
}

.project-links a:hover {
    color: var(--primary);
    transform: scale(1.1);
}

.project-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.project-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1rem 0;
}

.tech-tag {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.3rem 0.9rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: 60px;
    color: var(--primary-light);
}

.project-learnings {
    margin-top: 1rem;
    padding-top: 0.8rem;
    border-top: 1px solid var(--glass-border);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.project-learnings i {
    color: var(--primary);
    margin-right: 5px;
}

/* Philosophy Section */
.philosophy-container {
    max-width: 900px;
    margin: 0 auto;
}

.philosophy-card {
    padding: 2.5rem;
    transition: var(--transition-smooth);
}

.philosophy-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.philosophy-quote {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
    margin-bottom: 2rem;
    border: 1px solid var(--glass-border);
}

.philosophy-quote i {
    font-size: 1.5rem;
    color: var(--primary);
    opacity: 0.7;
    margin: 0 0.5rem;
}

.philosophy-quote p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    display: inline;
}

.philosophy-text p {
    margin-bottom: 1.2rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Knowledge Section */
.knowledge-container {
    padding: 2.5rem;
}

.knowledge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.8rem;
}

.knowledge-item {
    text-align: center;
    padding: 1.8rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--border-radius-md);
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.knowledge-item:hover {
    border-color: var(--glass-border);
    transform: translateY(-6px);
    background: rgba(255, 255, 255, 0.04);
}

.knowledge-icon {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.2rem;
    font-size: 2rem;
    color: var(--primary);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
}

.knowledge-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.6rem;
    color: var(--text-primary);
}

.knowledge-item p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
}

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

.contact-description {
    padding: 2rem;
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.contact-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.8rem 1.8rem;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.contact-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: white;
}

.contact-info {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.contact-label {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-light);
}

.contact-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* Footer */
footer {
    margin-top: 2rem;
    padding: 2rem 0;
}

.footer-content {
    text-align: center;
    padding: 1.5rem;
}

footer p {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 600;
    transition: var(--transition-smooth);
}

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

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2.5rem;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-badge {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .glass-circle {
        width: 300px;
        height: 300px;
    }
    
    .glass-circle-inner {
        width: 270px;
        height: 270px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.2rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 42, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        gap: 1.2rem;
        transform: translateY(-150%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s ease;
        border-bottom: 1px solid var(--glass-border);
        z-index: 999;
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .glass-circle {
        width: 260px;
        height: 260px;
    }
    
    .glass-circle-inner {
        width: 230px;
        height: 230px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .knowledge-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-card {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .philosophy-quote p {
        font-size: 1rem;
        display: block;
        margin: 0.5rem 0;
    }
    
    .philosophy-quote i {
        display: none;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .glass-circle {
        width: 220px;
        height: 220px;
    }
    
    .glass-circle-inner {
        width: 200px;
        height: 200px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .skill-card {
        padding: 1.5rem;
    }
    
    .knowledge-container {
        padding: 1.5rem;
    }
}

/* Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}