@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@900&family=Barlow:wght@300;400&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
    --bg-main: #070908;
    --primary: #34D399;
    --primary-glow: rgba(52, 211, 153, 0.15);
    --text-main: #DBE8DC;
    --text-muted: #B0C1B1;
    --grid-line: rgba(255, 255, 255, 0.04);
}

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

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: 'Barlow', sans-serif;
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
    background-image: 
        linear-gradient(var(--grid-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 40px 40px;
}

.background-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 100% 0%, rgba(52, 211, 153, 0.08) 0%, transparent 50%),
                radial-gradient(circle at 0% 100%, rgba(52, 211, 153, 0.05) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

header {
    padding: 2rem 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1600px;
    margin: 0 auto;
    border-bottom: 1px solid var(--grid-line);
}

.logo img {
    height: 32px;
    width: auto;
    filter: brightness(1.2);
}

.nav-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: flex;
    gap: 2rem;
}

.nav-meta a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

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

main {
    max-width: 1400px;
    margin: 8rem auto;
    padding: 0 4rem;
}

.hero {
    margin-bottom: 10rem;
    max-width: 1000px;
}

.hero-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: block;
}

h1 {
    font-family: 'Barlow Condensed', sans-serif;
    font-weight: 900;
    font-size: clamp(4rem, 10vw, 8rem);
    line-height: 0.85;
    text-transform: uppercase;
    letter-spacing: -0.01em;
    margin-bottom: 2rem;
}

.gradient-text {
    color: var(--primary);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 500px;
    font-weight: 300;
    border-left: 1px solid var(--primary);
    padding-left: 2rem;
    margin-top: 2rem;
}

.decks {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 4px;
    background-color: var(--grid-line);
    border: 1px solid var(--grid-line);
}

.deck-card {
    background-color: var(--bg-main);
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 400px;
    transition: background-color 0.4s ease;
}

.deck-card:hover {
    background-color: rgba(52, 211, 153, 0.02);
}

.card-meta {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.card-content h3 {
    font-family: 'Barlow Condensed', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 1rem;
}

.card-content p {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 3rem;
    max-width: 300px;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2rem;
    background-color: var(--primary);
    color: #000;
    text-decoration: none;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    width: fit-content;
    transition: background-color 0.3s ease;
}

.download-btn:hover {
    background-color: #4ade80;
}

.download-btn.secondary {
    background-color: transparent;
    border: 1px solid var(--grid-line);
    color: var(--text-main);
}

.download-btn.secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

footer {
    padding: 4rem;
    border-top: 1px solid var(--grid-line);
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    max-width: 1600px;
    margin: 0 auto;
}

footer p {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.confidential {
    color: #ef4444;
}

@media (max-width: 900px) {
    header, main, footer {
        padding: 2rem;
    }
    .decks {
        grid-template-columns: 1fr;
    }
}