/* ============================================
   PERFORMANCE-FIRST CSS - ZERO LAG
   Terminal/Brutalist Aesthetic
   ============================================ */

/* CSS VARIABLES */
:root {
    --bg: #000000;
    --fg: #00ff00;
    --accent: #00ff00;
    --dim: #004400;
    --border: #00ff00;
    --warning: #ffff00;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--fg);
    font-family: 'Roboto Mono', monospace;
    line-height: 1.6;
    overflow-x: hidden;
}

/* NO FANCY SCROLLBAR - PERFORMANCE */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--dim);
}

::selection {
    background: var(--accent);
    color: var(--bg);
}

/* ============================================
   SCANLINE EFFECT - PURE CSS
   ============================================ */
.scanline {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 255, 0, 0.03),
        rgba(0, 255, 0, 0.03) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ============================================
   HEADER
   ============================================ */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--bg);
    border-bottom: 2px solid var(--border);
}

.terminal-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.terminal-title {
    font-family: 'Orbitron', sans-serif;
    font-weight: 900;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.terminal-status {
    font-size: 0.9rem;
    color: var(--accent);
    animation: blink 2s infinite;
}

@keyframes blink {
    0%, 50%, 100% { opacity: 1; }
    25%, 75% { opacity: 0.5; }
}

/* ============================================
   MAIN
   ============================================ */
main {
    padding-top: 60px;
    max-width: 1400px;
    margin: 0 auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 4rem 1rem;
}

.glitch-wrapper {
    margin-bottom: 2rem;
}

.glitch {
    font-family: 'Orbitron', sans-serif;
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    letter-spacing: 4px;
    position: relative;
    text-shadow: 
        2px 2px 0 var(--accent),
        -2px -2px 0 var(--accent);
}

.hero-subtitle {
    font-size: clamp(0.9rem, 2vw, 1.2rem);
    letter-spacing: 3px;
    margin-bottom: 3rem;
    color: var(--dim);
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
    justify-content: center;
}

.stat-box {
    border: 2px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: var(--bg);
}

.stat-label {
    font-size: 0.7rem;
    color: var(--dim);
    letter-spacing: 2px;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
}

.download-btn {
    background: var(--bg);
    border: 3px solid var(--accent);
    color: var(--accent);
    padding: 1.2rem 3rem;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.1s;
}

.download-btn:hover {
    background: var(--accent);
    color: var(--bg);
}

.download-btn:active {
    transform: scale(0.98);
}

.btn-bracket {
    font-size: 1.4rem;
}

/* ============================================
   FEATURES
   ============================================ */
.features {
    padding: 4rem 0;
    border-top: 2px solid var(--dim);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.section-marker {
    font-size: 2rem;
    color: var(--dim);
}

.section-header h2 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 3px;
}

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

.feature {
    border: 2px solid var(--dim);
    padding: 1.5rem;
    background: var(--bg);
    transition: border-color 0.2s;
}

.feature:hover {
    border-color: var(--accent);
}

.feature-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1rem;
}

.feature-icon {
    font-size: 1.2rem;
    color: var(--accent);
}

.feature h3 {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.1rem;
    letter-spacing: 2px;
}

.feature p {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--dim);
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */
.download-section {
    padding: 4rem 0;
    border-top: 2px solid var(--dim);
}

.terminal-window {
    border: 3px solid var(--border);
    background: var(--bg);
    max-width: 800px;
    margin: 0 auto 2rem;
}

.terminal-header {
    background: var(--dim);
    padding: 0.8rem 1.5rem;
    font-weight: 700;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--border);
}

.terminal-body {
    padding: 2rem;
    font-family: 'Roboto Mono', monospace;
}

.terminal-line {
    margin-bottom: 0.5rem;
}

.prompt {
    color: var(--accent);
    margin-right: 0.5rem;
}

.terminal-output {
    color: var(--dim);
    margin-left: 1.5rem;
    margin-bottom: 0.3rem;
}

.terminal-output.success {
    color: var(--accent);
}

.cursor {
    animation: blink-cursor 1s step-end infinite;
}

@keyframes blink-cursor {
    50% { opacity: 0; }
}

.terminal-download {
    width: 100%;
    background: var(--bg);
    border: none;
    border-top: 2px solid var(--border);
    color: var(--accent);
    padding: 1.5rem;
    font-size: 1rem;
    font-weight: 700;
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 2px;
    cursor: pointer;
    transition: all 0.1s;
}

.terminal-download:hover {
    background: var(--accent);
    color: var(--bg);
}

.disclaimer {
    max-width: 800px;
    margin: 0 auto;
    padding: 1.5rem;
    border: 2px solid var(--warning);
    background: var(--bg);
    color: var(--warning);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ============================================
   FOOTER
   ============================================ */
footer {
    border-top: 2px solid var(--dim);
    padding: 3rem 0 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-brand {
    font-family: 'Orbitron', sans-serif;
    font-weight: 700;
    letter-spacing: 2px;
}

.footer-separator {
    color: var(--dim);
}

.footer-year {
    color: var(--dim);
}

.footer-right {
    display: flex;
    gap: 2rem;
}

.footer-right a {
    color: var(--dim);
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: color 0.2s;
}

.footer-right a:hover {
    color: var(--accent);
}

.footer-notice {
    font-size: 0.75rem;
    color: var(--dim);
    text-align: center;
    padding-top: 1rem;
    border-top: 1px solid var(--dim);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    main {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .terminal-bar {
        padding: 1rem;
    }
    
    .hero-stats {
        gap: 1rem;
    }
    
    .stat-box {
        padding: 0.8rem 1.5rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .terminal-body {
        padding: 1.5rem 1rem;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-right {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .download-btn {
        padding: 1rem 2rem;
        font-size: 0.9rem;
    }
    
    .hero-stats {
        flex-direction: column;
        width: 100%;
    }
    
    .stat-box {
        width: 100%;
    }
}