/* --- CSS Variables & Design Tokens --- */
:root {
    /* Color Palette: Dark Tech Theme Premium */
    --bg-dark: #0b0f19; /* Deeper dark background */
    --bg-card: rgba(30, 41, 59, 0.7); /* Translucent slate 800 */
    --bg-card-solid: #1e293b;
    --bg-card-hover: rgba(51, 65, 85, 0.9);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --accent-primary: #0ea5e9;
    --accent-primary-hover: #38bdf8;
    --accent-secondary: #10b981;
    
    /* Terminal Colors */
    --term-bg: rgba(0, 0, 0, 0.85);
    --term-red: #ef4444;
    --term-yellow: #eab308;
    --term-green: #22c55e;

    /* Typography */
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Fira Code', monospace;

    /* Transitions & Shadows & Blur */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.2), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(14, 165, 233, 0.3);
    --shadow-glow-hover: 0 0 30px rgba(14, 165, 233, 0.6);
    --blur-effect: blur(12px);
}
/* Background Elements */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.05), transparent 60%),
                radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.03), transparent 40%);
    z-index: -1;
    pointer-events: none;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden; /* Prevent horizontal scroll */
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    width: 100%;
}

img, video {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

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

/* --- Layout & Utilities --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 100px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

.section-title .line {
    display: block;
    width: 60%;
    height: 4px;
    background: var(--accent-primary);
    margin-top: 8px;
    border-radius: 2px;
}

.accent {
    color: var(--accent-primary);
}

/* --- Buttons --- */
.btn-primary, .btn-secondary, .btn-outline {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #fff;
    border: 2px solid var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    background-color: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    box-shadow: var(--shadow-glow-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
}

.btn-secondary:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(14, 165, 233, 0.05);
    transform: translateY(-2px);
}

.btn-outline {
    border: 1px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 0.5rem 1rem;
}

.btn-outline:hover {
    background-color: var(--accent-primary);
    color: #fff;
    box-shadow: var(--shadow-glow);
}

/* --- Navigation --- */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 15, 25, 0.7); /* Deeper Glassmorphism */
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.nav-links li a:not(.btn-outline):hover {
    color: var(--accent-primary);
}

.hamburger {
    display: none;
    cursor: pointer;
}

.hamburger div {
    width: 25px;
    height: 3px;
    background-color: var(--text-main);
    margin: 5px;
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px; /* offset for header */
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
}

.hero-content {
    flex: 1;
}

.greeting {
    color: var(--accent-primary);
    font-family: var(--font-mono);
    margin-bottom: 1rem;
}

.name {
    font-size: 4rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1rem;
}

.title {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.description {
    color: var(--text-muted);
    max-width: 500px;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

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

/* Terminal Animation */
.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
}

.terminal-window {
    width: 100%;
    max-width: 450px;
    background: var(--term-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.terminal-header {
    background: #2d3748;
    padding: 0.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: var(--term-red); }
.dot.yellow { background: var(--term-yellow); }
.dot.green { background: var(--term-green); }

.terminal-title {
    margin-left: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

.terminal-body {
    padding: 1.5rem;
    color: #cbd5e0;
}

.prompt {
    color: var(--accent-secondary);
    margin-right: 8px;
}

.terminal-body p {
    margin-bottom: 0.5rem;
}

.output {
    color: var(--text-muted);
    margin-bottom: 1rem !important;
}
.output.success { color: var(--accent-secondary); }

.blinking-cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background: #cbd5e0;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* --- About Section --- */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--accent-primary);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    pointer-events: none;
}

.stat-card:hover {
    transform: translateX(10px);
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.1);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.stat-card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

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

/* --- Skills Section --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.skill-category {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.skill-category h3 {
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
    font-size: 1.2rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 0.5rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    height: 100%;
    background: var(--accent-primary);
    border-radius: 4px;
    transform-origin: left;
    transition: width 1s ease-in-out;
}

/* --- Projects Section --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    top: 0;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    pointer-events: none;
}

.project-card:hover {
    top: -10px;
    box-shadow: var(--shadow-md), var(--shadow-glow);
    background: var(--bg-card-hover);
    border-color: rgba(14, 165, 233, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.project-folder {
    font-size: 2.5rem;
}

.project-links a {
    font-size: 1.2rem;
    transition: var(--transition);
}

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

.project-title {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-primary);
}

/* --- Contact Section --- */
.contact-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-text {
    color: var(--text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
}

.contact-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur-effect);
    -webkit-backdrop-filter: var(--blur-effect);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 12px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.contact-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 100%);
    pointer-events: none;
}

.contact-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.contact-card .icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.contact-card h4 {
    color: var(--text-main);
}

.contact-card p {
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* --- Footer --- */
.footer {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(255,255,255,0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* --- Media Queries (Responsiveness) --- */
@media screen and (max-width: 968px) {
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-actions {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .name {
        font-size: 3rem;
    }

    .title {
        font-size: 1.8rem;
    }

    /* Mobile Nav */
    .nav-links {
        position: fixed;
        right: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-dark);
        width: 100%;
        height: calc(100vh - 70px);
        align-items: center;
        justify-content: center;
        transition: 0.4s;
    }

    .nav-links.active {
        right: 0;
    }

    .hamburger {
        display: block;
    }

    .hamburger.active .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    .hamburger.active .line2 {
        opacity: 0;
    }
    .hamburger.active .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}