:root {
    /* Colors */
    --bg-dark: #050505;
    --bg-card: rgba(20, 20, 22, 0.6);
    --bg-card-hover: rgba(30, 30, 35, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;
    
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    
    /* Typography */
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
    
    /* Spacing */
    --container-width: 1200px;
    --section-pad-y: 120px;
    
    /* Effects */
    --transition-fast: 0.2s ease;
    --transition-norm: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --glow-shadow: 0 0 40px rgba(139, 92, 246, 0.2);
}

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

html {
    scroll-behavior: smooth;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
}

body {
    overflow-x: hidden;
    position: relative;
}

/* Background Effects */
.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -2;
    pointer-events: none;
    mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(circle at center, black 40%, transparent 100%);
}

.ambient-glow {
    position: fixed;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
    border-radius: 50%;
}

/* Typography Utility */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    line-height: 1.2;
    font-weight: 700;
}

.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Layout */
.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: var(--section-pad-y) 0;
    position: relative;
    z-index: 10;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 3rem;
    text-align: left;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 20px 0;
    z-index: 100;
    background: rgba(5, 5, 5, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.05em;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition-fast);
}

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

/* Buttons */
.btn-primary, .btn-primary-small {
    background: var(--text-primary);
    color: var(--bg-dark);
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
    display: inline-block;
    border: 1px solid transparent;
}

.btn-primary:hover {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.btn-primary-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(8px);
    transition: var(--transition-fast);
    display: inline-block;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-color-hover);
}

.btn-secondary-outline {
    background: transparent;
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: var(--transition-fast);
    display: inline-block;
}
.btn-secondary-outline:hover {
    color: var(--text-primary);
    border-color: var(--border-color-hover);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

.hero-title {
    font-size: clamp(3rem, 7vw, 5.5rem);
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* About Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.lead-text {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-family: var(--font-display);
    color: var(--text-primary);
    line-height: 1.5;
}

.about-image-wrapper {
    position: relative;
    border-radius: 24px;
    transform-style: preserve-3d;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 24px;
    transform: translateZ(30px); /* 3D pop out effect */
}

.image-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 10px 40px rgba(59, 130, 246, 0.8), inset 0 -10px 40px rgba(139, 92, 246, 0.8);
    pointer-events: none;
    border-radius: 24px;
    mix-blend-mode: overlay;
    transform: translateZ(40px);
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.detail-item i {
    color: var(--accent-purple);
    width: 28px;
    height: 28px;
    margin-bottom: 8px;
}

.detail-item h3 {
    font-size: 1.2rem;
}

.detail-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Cards Section */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px 32px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    transition: var(--transition-norm);
    transform-style: preserve-3d;
}

.card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-purple);
    /* Note: translation happens from vanilla-tilt, we just add the box-shadow */
    box-shadow: 0 10px 40px -10px rgba(139, 92, 246, 0.15);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent-blue);
    transform: translateZ(40px);
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    transform: translateZ(30px);
}

.card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    transform: translateZ(20px);
}

/* Featured Project */
.featured-card {
    background: linear-gradient(180deg, rgba(30, 30, 35, 0.6) 0%, rgba(15, 15, 18, 0.6) 100%);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
}

.featured-content {
    padding: 60px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.featured-badge {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(139, 92, 246, 0.1);
    color: var(--accent-purple);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 24px;
    width: max-content;
}

.featured-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 24px;
}

.featured-desc {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

.feature-list {
    list-style: none;
    margin-bottom: 40px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.feature-list i {
    color: var(--accent-blue);
    width: 20px;
    height: 20px;
}

.featured-visual {
    background: rgba(0, 0, 0, 0.2);
    position: relative;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-left: 1px solid var(--border-color);
}

.abstract-graphic {
    position: relative;
    width: 300px;
    height: 300px;
}

.circle {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.c1 { width: 300px; height: 300px; border-color: rgba(139, 92, 246, 0.3); animation: pulse 4s infinite alternate; }
.c2 { width: 200px; height: 200px; border-color: rgba(59, 130, 246, 0.4); animation: pulse 3s infinite alternate-reverse; }
.c3 { width: 100px; height: 100px; background: var(--accent-gradient); box-shadow: var(--glow-shadow); }

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(0.95); opacity: 0.8; }
    100% { transform: translate(-50%, -50%) scale(1.05); opacity: 1; }
}

/* Vision Section */
.vision-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 40px;
    background: var(--bg-card);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    position: relative;
}

.quote-icon {
    width: 48px;
    height: 48px;
    color: rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
}

.vision-statement {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    margin-bottom: 24px;
    font-family: var(--font-display);
}

.vision-author {
    color: var(--accent-purple);
    font-weight: 600;
    margin-bottom: 24px;
}

.vision-subtext {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

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

.contact-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
    margin-bottom: 16px;
}

.contact-desc {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
    transform: translateY(-2px);
}

.social-link i {
    width: 18px;
    height: 18px;
}

.mt-8 {
    margin-top: 32px;
}
.contact-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

/* Footer */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    margin-top: var(--section-pad-y);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

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

/* Responsive */
@media (max-width: 900px) {
    .about-content, .featured-card {
        grid-template-columns: 1fr;
    }
    
    .featured-visual {
        min-height: 300px;
        border-left: none;
        border-top: 1px solid var(--border-color);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-actions {
        flex-direction: column;
    }
}