:root {
    --bg-color: #0f1115;
    --card-bg: #1a1d24;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --accent: #00bcd4; /* Electric Cyan */
    --accent-hover: #008ba3;
    --border: #2c303a;
    --font-mono: 'Courier New', Courier, monospace;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

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

h1, h2, h3 { font-weight: 700; letter-spacing: -0.5px; }
h1 { font-size: 2.5rem; margin-bottom: 1rem; color: #fff; }
h2 { font-size: 1.8rem; margin-bottom: 1.5rem; color: var(--accent); border-left: 4px solid var(--accent); padding-left: 1rem; }
p { margin-bottom: 1rem; color: var(--text-muted); }
.mono { font-family: var(--font-mono); font-size: 0.9rem; color: var(--accent); }
.lead { font-size: 1.1rem; color: var(--text-main); }

.container { max-width: 900px; margin: 0 auto; padding: 2rem; }
section { margin-bottom: 4rem; }

/* Header */
header { text-align: center; padding: 4rem 0 2rem; border-bottom: 1px solid var(--border); }
.status-badge {
    display: inline-block;
    background: rgba(0, 188, 212, 0.1);
    color: var(--accent);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    margin-top: 1rem;
    border: 1px solid var(--accent);
}

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.2s, border-color 0.2s;
}
.card:hover { transform: translateY(-5px); border-color: var(--accent); }
.card h3 { color: #fff; margin-bottom: 0.5rem; }

/* Buttons */
.btn {
    display: inline-block;
    background: var(--accent);
    color: #000;
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: background 0.3s;
    margin-top: 1rem;
}
.btn:hover { background: var(--accent-hover); }

.btn-back {
    display: inline-block;
    color: var(--accent);
    text-decoration: none;
    font-family: var(--font-mono);
    margin-bottom: 2rem;
}
.btn-back:hover { text-decoration: underline; }

/* Lists */
ul { margin-left: 1.5rem; margin-bottom: 1rem; color: var(--text-muted); }
li { margin-bottom: 0.5rem; }

/* Note & Warning */
.note { font-style: italic; font-size: 0.9rem; color: var(--text-muted); margin-top: 0.5rem; }
.warning { background: rgba(255, 87, 34, 0.1); border: 1px solid rgba(255, 87, 34, 0.3); padding: 1.5rem; border-radius: 8px; }
.warning h2 { color: #ff5722; border-color: #ff5722; }

/* PGP Block */
.pgp-block {
    background: #000;
    padding: 1rem;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    white-space: pre-wrap;
    overflow-x: auto;
    margin-top: 1rem;
    border: 1px solid var(--border);
}

/* Links */
.link-accent { color: var(--accent); text-decoration: none; border-bottom: 1px dotted var(--accent); }
.link-accent:hover { background: var(--accent); color: #000; }

/* Footer */
footer { text-align: center; padding: 2rem 0; border-top: 1px solid var(--border); font-size: 0.85rem; color: var(--text-muted); margin-top: 2rem; }
.footer-nav { margin-top: 1rem; }
.footer-nav a { color: var(--accent); text-decoration: none; margin: 0 0.5rem; }
.footer-nav a:hover { text-decoration: underline; }

/* Mobile */
@media (max-width: 600px) {
    h1 { font-size: 2rem; }
    .container { padding: 1rem; }
}