/* ============================================
   STARSHADE - AEROSPACE THEME
   Matching LinkageLab design system
   ============================================ */

:root {
    /* === TYPOGRAPHY === */
    --font-display: 'Exo 2', 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-body: 'Segoe UI', system-ui, sans-serif;
    
    /* === PRIMARY COLORS - Cyan Aerospace === */
    --clr-primary: #22d3ee;           /* Cyan blue - main brand color */
    --clr-primary-light: #67e8f9;    /* Light cyan */
    --clr-primary-dark: #0891b2;     /* Dark cyan */
    --clr-primary-rgb: 34, 211, 238; /* For rgba() usage */
    
    /* === ENERGY COLORS === */
    --energy-amber: #f59e0b;
    --energy-green: #10b981;
    --energy-red: #ef4444;
    --energy-blue: #3b82f6;
    
    /* === SPACE BACKGROUNDS === */
    --space-900: #0a0e1a;             /* Deepest space */
    --space-800: #0f1629;             /* Dark space */
    --space-700: #151d35;             /* Medium dark */
    --space-600: #1c2541;             /* Panel background */
    --space-500: #253152;             /* Input background */
    --space-400: #3a4a6b;             /* Border light */
    
    /* === TEXT COLORS === */
    --text-primary: #e2e8f0;          /* Main text */
    --text-secondary: #94a3b8;        /* Secondary text */
    --text-muted: #64748b;            /* Muted text */
    --text-dim: #475569;              /* Dim text */
    
    /* === BORDERS === */
    --border: var(--space-400);
    --border-light: var(--space-400);
    --border-med: var(--space-500);
    
    /* === GLOW EFFECTS === */
    --glow-primary: 0 0 12px rgba(34, 211, 238, 0.3);
    --glow-primary-strong: 0 0 20px rgba(34, 211, 238, 0.45);
    --glow-subtle: 0 0 8px rgba(34, 211, 238, 0.15);
    
    /* === BORDER RADIUS === */
    --radius-sm: 4px;
    --radius-md: 4px;
    --radius-lg: 6px;
    
    /* === TRANSITIONS === */
    --transition-fast: 0.15s ease;
    --transition-med: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* === SHADOWS === */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--space-900);
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(34, 211, 238, 0.02) 2px,
            rgba(34, 211, 238, 0.02) 4px
        );
    pointer-events: none;
    z-index: 1;
}

body > * {
    position: relative;
    z-index: 2;
}

/* Selection styling */
::selection {
    background: rgba(34, 211, 238, 0.3);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(34, 211, 238, 0.3);
    color: var(--text-primary);
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--clr-primary);
    box-shadow: var(--shadow-md), var(--glow-subtle);
    z-index: 1000;
    padding: 1rem 2rem;
}

nav .nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--clr-primary);
    text-decoration: none;
    text-shadow: var(--glow-subtle);
    transition: all var(--transition-med);
}

nav .logo:hover {
    text-shadow: var(--glow-primary);
    color: var(--clr-primary-light);
}

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

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: all var(--transition-med);
    position: relative;
    padding: 0.5rem 0;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--clr-primary);
    transition: width var(--transition-med);
}

nav a:hover {
    color: var(--clr-primary);
    text-shadow: var(--glow-subtle);
}

nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.hero {
    height: 100vh;
    position: relative;
    overflow: hidden;
    margin-top: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-background img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.4) contrast(1.2);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(10, 14, 26, 0.7) 0%,
        rgba(10, 14, 26, 0.5) 50%,
        rgba(10, 14, 26, 0.8) 100%
    );
    z-index: 2;
}

.hero-overlay::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(34, 211, 238, 0.03) 2px,
            rgba(34, 211, 238, 0.03) 4px
        );
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1400px;
    padding: 4rem 2rem;
    text-align: center;
    width: 100%;
}

.hero-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.open-source-icon {
    width: 160px;
    height: auto;
    opacity: 0.95;
    transition: all var(--transition-med);
    /* Convert white fill to cyan using filter */
    filter: 
        brightness(0) 
        saturate(100%) 
        invert(67%) 
        sepia(93%) 
        saturate(1352%) 
        hue-rotate(152deg) 
        brightness(101%) 
        contrast(101%)
        drop-shadow(0 0 10px rgba(34, 211, 238, 0.45)) 
        drop-shadow(0 0 20px rgba(34, 211, 238, 0.3));
    animation: icon-glow 3s ease-in-out infinite;
}

.open-source-icon:hover {
    opacity: 1;
    transform: scale(1.05);
    filter: 
        brightness(0) 
        saturate(100%) 
        invert(67%) 
        sepia(93%) 
        saturate(1352%) 
        hue-rotate(152deg) 
        brightness(101%) 
        contrast(101%)
        drop-shadow(0 0 15px rgba(34, 211, 238, 0.6)) 
        drop-shadow(0 0 30px rgba(34, 211, 238, 0.45));
}

@keyframes icon-glow {
    0%, 100% {
        filter: 
            brightness(0) 
            saturate(100%) 
            invert(67%) 
            sepia(93%) 
            saturate(1352%) 
            hue-rotate(152deg) 
            brightness(101%) 
            contrast(101%)
            drop-shadow(0 0 10px rgba(34, 211, 238, 0.45)) 
            drop-shadow(0 0 20px rgba(34, 211, 238, 0.3));
    }
    50% {
        filter: 
            brightness(0) 
            saturate(100%) 
            invert(67%) 
            sepia(93%) 
            saturate(1352%) 
            hue-rotate(152deg) 
            brightness(101%) 
            contrast(101%)
            drop-shadow(0 0 15px rgba(34, 211, 238, 0.675)) 
            drop-shadow(0 0 30px rgba(34, 211, 238, 0.45));
    }
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid var(--clr-primary);
    color: var(--clr-primary);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    box-shadow: 0 0 20px rgba(34, 211, 238, 0.225);
    backdrop-filter: blur(10px);
}

.hero-title {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.hero-title-main {
    font-family: var(--font-display);
    font-size: clamp(4rem, 12vw, 8rem);
    font-weight: 900;
    letter-spacing: 12px;
    line-height: 1;
    display: inline-flex;
    gap: 0.1em;
}

.hero-title-star {
    color: #fbbf24;
    text-shadow: 
        0 0 20px rgba(251, 191, 36, 0.675),
        0 0 40px rgba(251, 191, 36, 0.45),
        0 0 60px rgba(251, 191, 36, 0.3),
        0 0 80px rgba(251, 191, 36, 0.15);
    animation: star-glow 3s ease-in-out infinite;
    font-weight: 900;
    letter-spacing: 14px;
    position: relative;
}

.hero-title-star::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(251, 191, 36, 0.3) 0%, transparent 70%);
    filter: blur(10px);
    z-index: -1;
    animation: star-pulse 3s ease-in-out infinite;
}

@keyframes star-glow {
    0%, 100% {
        text-shadow: 
            0 0 20px rgba(251, 191, 36, 0.675),
            0 0 40px rgba(251, 191, 36, 0.45),
            0 0 60px rgba(251, 191, 36, 0.3),
            0 0 80px rgba(251, 191, 36, 0.15);
    }
    50% {
        text-shadow: 
            0 0 30px rgba(251, 191, 36, 0.75),
            0 0 60px rgba(251, 191, 36, 0.6),
            0 0 90px rgba(251, 191, 36, 0.375),
            0 0 120px rgba(251, 191, 36, 0.225);
    }
}

@keyframes star-pulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
}

.hero-title-shade {
    color: var(--clr-primary);
    text-shadow: 
        0 0 20px rgba(34, 211, 238, 0.6),
        0 0 40px rgba(34, 211, 238, 0.375),
        0 0 60px rgba(34, 211, 238, 0.225);
    animation: shade-glow 3s ease-in-out infinite;
    font-weight: 700;
    letter-spacing: 12px;
    position: relative;
}

@keyframes shade-glow {
    0%, 100% {
        text-shadow: 
            0 0 20px rgba(34, 211, 238, 0.6),
            0 0 40px rgba(34, 211, 238, 0.375),
            0 0 60px rgba(34, 211, 238, 0.225);
    }
    50% {
        text-shadow: 
            0 0 30px rgba(34, 211, 238, 0.75),
            0 0 60px rgba(34, 211, 238, 0.525),
            0 0 90px rgba(34, 211, 238, 0.3);
    }
}

.hero-title-sub {
    font-family: var(--font-display);
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    font-weight: 600;
    letter-spacing: 4px;
    color: var(--text-secondary);
    text-transform: uppercase;
    opacity: 0.9;
}

.hero-tagline {
    font-family: var(--font-mono);
    font-size: clamp(1.1rem, 2.5vw, 1.5rem);
    font-weight: 500;
    color: var(--clr-primary);
    margin-bottom: 1.5rem;
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.tagline-prefix {
    color: var(--energy-green);
    font-weight: 700;
}

.tagline-command {
    color: var(--clr-primary-light);
    text-shadow: 0 0 10px rgba(34, 211, 238, 0.375);
}

.hero-description {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--clr-primary);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.7;
    animation: scroll-bounce 2s ease-in-out infinite;
}

@keyframes scroll-bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: linear-gradient(180deg, var(--clr-primary) 0%, transparent 100%);
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.375);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: transparent;
    color: var(--clr-primary);
    text-decoration: none;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 2px;
    transition: all var(--transition-med);
    border: 2px solid var(--clr-primary);
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    box-shadow: var(--glow-subtle);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.1), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    box-shadow: var(--glow-primary);
    background: rgba(34, 211, 238, 0.05);
    border-color: var(--clr-primary-light);
    color: var(--clr-primary-light);
    transform: translateY(-2px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: rgba(34, 211, 238, 0.1);
    border-color: var(--clr-primary);
}

.btn-primary:hover {
    background: rgba(34, 211, 238, 0.2);
    box-shadow: var(--glow-primary-strong);
}

.btn-secondary {
    margin-left: 0;
    border-color: var(--border);
    color: var(--text-secondary);
}

.btn-secondary:hover {
    border-color: var(--clr-primary);
    color: var(--clr-primary);
    background: rgba(34, 211, 238, 0.05);
}

/* Specs Section */
.specs-section {
    padding: 8rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    background: var(--space-900);
    position: relative;
}

.specs-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
}

.specs-header {
    text-align: center;
    margin-bottom: 4rem;
}

.specs-label {
    font-family: var(--font-mono);
    font-size: 1.85rem;
    letter-spacing: 4px;
    color: var(--clr-primary);
    text-transform: uppercase;
    margin-bottom: 1rem;
    opacity: 0.8;
}

.specs-divider {
    width: 100px;
    height: 2px;
    background: var(--clr-primary);
    margin: 0 auto;
    box-shadow: 0 0 10px rgba(34, 211, 238, 0.375);
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4rem;
    color: var(--clr-primary);
    letter-spacing: 4px;
    text-shadow: var(--glow-primary);
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.spec-item {
    text-align: center;
    padding: 3rem 2rem;
    border: 2px solid var(--border);
    background: linear-gradient(180deg, var(--space-600) 0%, var(--space-700) 100%);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-med);
    border-radius: var(--radius-md);
}

.spec-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--clr-primary), transparent);
    opacity: 0;
    transition: opacity var(--transition-med);
}

.spec-item::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(34, 211, 238, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-med);
}

.spec-item:hover {
    box-shadow: var(--shadow-lg), var(--glow-primary);
    transform: translateY(-8px);
    border-color: var(--clr-primary);
    background: linear-gradient(180deg, var(--space-500) 0%, var(--space-600) 100%);
}

.spec-item:hover::before {
    opacity: 1;
}

.spec-item:hover::after {
    opacity: 1;
}

.spec-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    filter: grayscale(1) brightness(1.5);
    transition: all var(--transition-med);
}

.spec-item:hover .spec-icon {
    filter: grayscale(0) brightness(1.2);
    transform: scale(1.1);
}

.spec-value {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    color: var(--clr-primary);
    margin-bottom: 0.5rem;
    text-shadow: var(--glow-primary);
    position: relative;
    z-index: 2;
    line-height: 1;
}

.spec-unit {
    font-size: 0.5em;
    font-weight: 600;
    opacity: 0.8;
    margin-left: 0.2em;
}

.spec-label {
    font-family: var(--font-display);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--clr-primary);
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 2;
    font-weight: 600;
}

.spec-detail {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    position: relative;
    z-index: 2;
    margin-top: 0.5rem;
}

/* Content Section */
.content-section {
    padding: 6rem 2rem;
    background: var(--space-800);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.content-wrapper h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--clr-primary);
    letter-spacing: 3px;
    text-shadow: var(--glow-subtle);
}

.content-wrapper h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
    color: var(--clr-primary);
    letter-spacing: 2px;
}

.content-wrapper p {
    font-size: 1.4rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.content-wrapper ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.content-wrapper li {
    font-size: 1.4rem;
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    opacity: 0.9;
}

.content-wrapper li::marker {
    color: var(--clr-primary);
}

.content-wrapper a {
    color: var(--clr-primary);
    text-decoration: none;
    border-bottom: 1px solid var(--clr-primary);
    transition: all var(--transition-fast);
}

.content-wrapper a:hover {
    color: var(--clr-primary-light);
    border-bottom-color: var(--clr-primary-light);
    text-shadow: var(--glow-subtle);
}

/* Image Showcase */
.image-showcase {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
    background: var(--space-900);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.showcase-grid img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border: 2px solid var(--border);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-med);
    border-radius: var(--radius-md);
}

.showcase-grid img:hover {
    box-shadow: var(--shadow-lg), var(--glow-subtle);
    border-color: var(--clr-primary);
    transform: scale(1.02);
}

/* Download Section */
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.download-card {
    padding: 2rem;
    border: 2px solid var(--border);
    background: var(--space-600);
    transition: all var(--transition-med);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
}

.download-card:hover {
    box-shadow: var(--shadow-lg), var(--glow-subtle);
    transform: translateY(-5px);
    border-color: var(--clr-primary);
}

.download-card h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--clr-primary);
    letter-spacing: 1px;
}

.download-card p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Calculator Section */
.calculator {
    padding: 2rem;
    background: var(--space-600);
    margin-bottom: 3rem;
    border: 2px solid var(--border);
    box-shadow: var(--shadow-md);
    border-radius: var(--radius-md);
}

.calculator h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--clr-primary);
    letter-spacing: 2px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    background: var(--space-500);
    border: 2px solid var(--border);
    font-size: 1rem;
    font-family: var(--font-body);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--clr-primary);
    background: var(--space-400);
    box-shadow: 0 0 0 2px rgba(34, 211, 238, 0.15), var(--glow-subtle);
}

.result {
    padding: 1.5rem;
    background: var(--space-500);
    border: 2px solid var(--clr-primary);
    margin-top: 1.5rem;
    box-shadow: var(--glow-subtle);
    border-radius: var(--radius-md);
}

.result h4 {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--clr-primary);
    letter-spacing: 2px;
}

.result p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Footer */
footer {
    padding: 3rem 2rem;
    text-align: center;
    background: var(--space-900);
    border-top: 2px solid var(--clr-primary);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
}

footer p {
    font-size: 0.9rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
    text-shadow: var(--glow-subtle);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--space-800);
}

::-webkit-scrollbar-thumb {
    background: var(--space-500);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--space-400);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--space-500) var(--space-800);
}

/* Focus states */
:focus-visible {
    outline: 2px solid var(--clr-primary);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        gap: 1rem;
    }
    
    nav a {
        font-size: 0.8rem;
    }
    
    .hero {
        margin-top: 60px;
        height: 100vh;
        min-height: 600px;
    }
    
    .hero-content {
        padding: 2rem 1rem;
    }
    
    .hero-icon {
        margin-bottom: 1rem;
    }
    
    .open-source-icon {
        width: 120px;
    }
    
    .hero-badge {
        font-size: 0.65rem;
        padding: 0.4rem 1rem;
        letter-spacing: 2px;
    }
    
    .hero-title-main {
        font-size: 3.5rem;
        letter-spacing: 6px;
    }
    
    .hero-title-star {
        letter-spacing: 8px;
    }
    
    .hero-title-shade {
        letter-spacing: 6px;
    }
    
    .hero-title-sub {
        font-size: 0.75rem;
        letter-spacing: 2px;
    }
    
    .hero-tagline {
        font-size: 0.9rem;
    }
    
    .hero-description {
        font-size: 0.95rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
    }
    
    .btn-secondary {
        margin-left: 0;
    }
    
    .hero-scroll-indicator {
        bottom: 2rem;
        font-size: 0.6rem;
    }
    
    .specs-section {
        padding: 4rem 1.5rem;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .spec-item {
        padding: 2rem 1.5rem;
    }
    
    .spec-value {
        font-size: 2.5rem;
    }
    
    .showcase-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
}