/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    --color-bg: #0a0a0f;
    --color-bg-secondary: #12121a;
    --color-surface: #1a1a25;
    --color-surface-hover: #252535;
    --color-primary: #e94560;
    --color-primary-dark: #c73a52;
    --color-accent: #ff6b35;
    --color-mars: #e94560;
    --color-text: #ffffff;
    --color-text-muted: #a0a0b0;
    --color-text-dim: #6a6a7a;
    --color-border: #2a2a3a;
    
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 5rem;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
}

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

html {
    scroll-behavior: smooth;
}

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

/* ================================
   Starfield Background Animation
   ================================ */
.stars, .stars2, .stars3 {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.stars {
    background: transparent url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23ffffff" cx="50" cy="50" r="1" opacity="0.8"/></svg>') repeat;
    background-size: 100px 100px;
    animation: animateStars 100s linear infinite;
}

.stars2 {
    background: transparent url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23ffffff" cx="30" cy="70" r="0.5" opacity="0.5"/></svg>') repeat;
    background-size: 150px 150px;
    animation: animateStars 150s linear infinite;
}

.stars3 {
    background: transparent url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle fill="%23ffffff" cx="70" cy="30" r="0.3" opacity="0.3"/></svg>') repeat;
    background-size: 200px 200px;
    animation: animateStars 200s linear infinite;
}

@keyframes animateStars {
    from { transform: translateY(0); }
    to { transform: translateY(-100%); }
}

/* ================================
   Layout
   ================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    margin: var(--spacing-sm) auto 0;
    border-radius: var(--radius-full);
}

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-display);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: var(--color-text);
    box-shadow: 0 4px 20px rgba(233, 69, 96, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(233, 69, 96, 0.5);
}

/* ================================
   Header & Navigation
   ================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    color: var(--color-text);
}

.logo-icon {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.project-icon {
    width: 80px;
    height: 80px;
}

.contact-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

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

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

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

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

.hero-content {
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    margin-bottom: var(--spacing-md);
}

.hero-title-line {
    display: block;
}

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

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 500px;
    margin-bottom: var(--spacing-lg);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Mars Planet Animation */
.planet {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.planet.mars {
    background: linear-gradient(135deg, #e94560 0%, #c73a52 50%, #8b2a3a 100%);
    box-shadow: 
        inset -30px -30px 60px rgba(0, 0, 0, 0.5),
        inset 10px 10px 40px rgba(255, 150, 150, 0.2),
        0 0 60px rgba(233, 69, 96, 0.3);
}

.planet-surface {
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255, 200, 200, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 60% 70%, rgba(139, 42, 58, 0.5) 0%, transparent 30%),
        radial-gradient(circle at 80% 20%, rgba(139, 42, 58, 0.3) 0%, transparent 20%);
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* ================================
   About Section
   ================================ */
.about {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

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

.about-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stat {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid var(--color-border);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ================================
   Projects Section
   ================================ */
.projects {
    padding: var(--spacing-2xl) 0;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: all var(--transition-normal);
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 40px rgba(233, 69, 96, 0.2);
}

.project-card.coming-soon {
    opacity: 0.7;
    cursor: default;
}

.project-card.coming-soon:hover {
    transform: none;
    border-color: var(--color-border);
    box-shadow: none;
}

.project-image {
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, var(--color-bg), var(--color-surface));
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-info {
    padding: var(--spacing-md);
}

.project-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xs);
}

.project-description {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
}

.project-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.project-status {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--color-text-dim);
}

/* ================================
   Contact Section
   ================================ */
.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--color-bg-secondary);
}

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

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

.contact-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
}

.contact-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.contact-link:hover {
    border-color: var(--color-primary);
    background: var(--color-surface-hover);
}

/* ================================
   Footer
   ================================ */
.footer {
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.footer-text {
    color: var(--color-text-dim);
    font-size: 0.85rem;
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .planet {
        width: 200px;
        height: 200px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .stat {
        flex: 1;
        min-width: 150px;
    }
}

@media (max-width: 600px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-links a {
        font-size: 0.8rem;
    }
    
    .logo-text {
        font-size: 0.9rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-links {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-link {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}