/* Global Design System Variables */
:root {
    --bg-dark-base: #03001e;
    --bg-dark-card: rgba(11, 8, 30, 0.65);
    --bg-dark-card-hover: rgba(22, 17, 51, 0.85);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(6, 182, 212, 0.5);
    
    --primary: #8b5cf6; /* Indigo/Violet */
    --primary-glow: rgba(139, 92, 246, 0.3);
    --secondary: #06b6d4; /* Cyan */
    --secondary-glow: rgba(6, 182, 212, 0.3);
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --font-main: 'Poppins', sans-serif;
    --font-title: 'Outfit', sans-serif;
    --transition-smooth: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark-base);
    background-image: 
        radial-gradient(at 0% 0%, rgba(139, 92, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(6, 182, 212, 0.15) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(15, 10, 36, 0.99) 0px, var(--bg-dark-base) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-title);
    letter-spacing: -0.02em;
    font-weight: 700;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #03001c;
}
::-webkit-scrollbar-thumb {
    background: #221a47;
    border-radius: 5px;
    border: 2px solid #03001c;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Floating Glass Navbar */
.navbar-container {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1000px;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    background: rgba(10, 5, 25, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    transition: var(--transition-smooth);
}

.nav-brand {
    font-size: 1.4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: -1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
    padding: 5px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition-smooth);
}

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

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

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    z-index: 1001;
}

.mobile-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition-smooth);
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    text-align: center;
    padding: 0 20px;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--primary);
    filter: blur(150px);
    opacity: 0.15;
    top: 25%;
    left: 20%;
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--secondary);
    filter: blur(150px);
    opacity: 0.15;
    bottom: 25%;
    right: 20%;
    pointer-events: none;
}

.hero-subtitle {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #ffffff 40%, #c7d2fe 80%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-typing {
    font-size: 2rem;
    color: var(--text-secondary);
    height: 40px;
    display: flex;
    align-items: center;
    margin-bottom: 40px;
    font-weight: 400;
}

.hero-typing strong {
    color: var(--secondary);
    font-weight: 700;
    margin-left: 8px;
    padding-right: 4px;
}

.cta-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 50px;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
    color: white;
    box-shadow: 0 10px 20px -5px var(--primary-glow);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px -5px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--text-muted);
    transform: translateY(-3px);
}

/* Glass Panels */
.glass-panel {
    background: var(--bg-dark-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    transition: var(--transition-smooth);
}

.glass-panel:hover {
    border-color: var(--border-color-hover);
    box-shadow: 0 20px 40px -15px rgba(6, 182, 212, 0.12);
    background: var(--bg-dark-card-hover);
}

/* Section Common Layout */
section {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 3rem;
    background: linear-gradient(135deg, #ffffff 40%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    position: relative;
    padding-bottom: 15px;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 15px;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
}

.highlight-item i {
    font-size: 1.8rem;
    color: var(--secondary);
}

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

.highlight-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skills-category {
    padding: 30px;
}

.skills-category h3 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-bar-wrapper {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    font-size: 0.95rem;
}

.skill-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 4px;
    width: 0; /* Animated dynamically or via inline styles */
    transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
    position: relative;
    padding: 30px;
}

.project-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.04);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--secondary);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.project-card:hover .project-icon {
    background: var(--secondary);
    color: #03001c;
    box-shadow: 0 0 20px var(--secondary-glow);
    border-color: var(--secondary-light);
}

.project-card h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 25px;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 25px;
}

.tag {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.project-link i {
    transition: var(--transition-smooth);
}

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

.project-link:hover i {
    transform: translateX(4px);
}

/* Contact Section */
.contact-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px;
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    outline: none;
}

.form-control:focus {
    border-color: var(--secondary);
    box-shadow: 0 0 15px rgba(6, 182, 212, 0.15);
    background: rgba(255, 255, 255, 0.06);
}

textarea.form-control {
    resize: vertical;
    min-height: 150px;
}

.submit-btn {
    grid-column: span 2;
    margin-top: 15px;
    padding: 15px;
    font-size: 1rem;
    border: none;
}

/* Footer Section */
footer {
    padding: 60px 20px 40px;
    text-align: center;
    border-top: 1px solid var(--border-color);
    background: rgba(3, 0, 30, 0.9);
}

.footer-socials {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 25px;
}

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.2rem;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-icon:hover {
    color: var(--secondary-light);
    border-color: var(--secondary);
    box-shadow: 0 0 15px var(--secondary-glow);
    transform: translateY(-3px);
}

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

/* Responsive Overrides */
@media (max-width: 900px) {
    h1, .hero h1 {
        font-size: 3rem;
    }
    
    .hero-typing {
        font-size: 1.5rem;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar {
        border-radius: 25px;
        padding: 15px 20px;
    }
    
    .nav-menu {
        position: fixed;
        top: 90px;
        left: 5%;
        width: 90%;
        flex-direction: column;
        background: rgba(10, 5, 25, 0.95);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        padding: 40px;
        border-radius: 20px;
        border: 1px solid var(--border-color);
        gap: 20px;
        text-align: center;
        opacity: 0;
        transform: translateY(-20px);
        pointer-events: none;
        transition: var(--transition-smooth);
    }
    
    .nav-menu.active {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .mobile-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .contact-form {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width, .submit-btn {
        grid-column: span 1;
    }
}