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

:root {
    --bg: #050810;
    --bg2: #0a0f1c;
    --cyan: #00f0ff;
    --cyan-dim: #007a82;
    --orange: #ff6a00;
    --red: #ff2a2a;
    --green: #00ff6a;
    --border: #0f1a30;
    --text: #b0c0d8;
    --text-dim: #4a5a72;
    --white: #e8f0ff;
}

body {
    font-family: 'Share Tech Mono', monospace;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    position: relative;
}

.grid-bg {
    position: fixed; inset: 0; z-index: -1;
    background-image:
        linear-gradient(rgba(0,240,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,240,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.container { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.hud-nav { border-bottom: 1px solid var(--border); padding: 0 24px; background: rgba(5,8,16,0.95); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 900px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 56px; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-hex { color: var(--cyan); font-size: 1.3rem; }
.logo-name { font-family: 'Orbitron', sans-serif; font-weight: 800; font-size: 1rem; color: var(--white); letter-spacing: 0.15em; }
.accent { color: var(--cyan); }
.nav-status { display: flex; align-items: center; gap: 8px; font-size: 0.75rem; color: var(--green); letter-spacing: 0.1em; }
.status-dot { width: 8px; height: 8px; background: var(--green); border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

/* Header */
.hud-header {
    position: relative; text-align: center; padding: 60px 20px 40px;
    border: 1px solid var(--border); border-top: none; margin-bottom: 32px;
}
.corner { position: absolute; width: 20px; height: 20px; border-color: var(--cyan); border-style: solid; }
.corner.tl { top: 0; left: 0; border-width: 2px 0 0 2px; }
.corner.tr { top: 0; right: 0; border-width: 2px 2px 0 0; }
.hud-header h1 { font-family: 'Orbitron', sans-serif; font-size: 2rem; font-weight: 900; color: var(--white); letter-spacing: 0.1em; margin-bottom: 12px; }
.subtitle { font-size: 0.8rem; color: var(--cyan); letter-spacing: 0.2em; }

/* Cards */
.briefing-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; margin-bottom: 24px; overflow: hidden; }
.card-label { padding: 12px 20px; background: rgba(0,240,255,0.05); border-bottom: 1px solid var(--border); font-size: 0.75rem; color: var(--cyan); letter-spacing: 0.15em; font-weight: 600; }
.card-label i { margin-right: 8px; }
.card-content { padding: 20px; }
.card-content p { margin-bottom: 12px; line-height: 1.7; font-size: 0.9rem; }
.card-content code { background: rgba(0,240,255,0.08); color: var(--cyan); padding: 2px 8px; border-radius: 3px; font-size: 0.85rem; }

/* Info grid */
.info-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 28px; }
.info-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; padding: 16px 12px; text-align: center; }
.info-label { font-size: 0.65rem; color: var(--text-dim); letter-spacing: 0.15em; margin-bottom: 8px; }
.info-value { font-size: 0.85rem; color: var(--white); font-weight: 600; }
.info-value.enabled { color: var(--orange); }
.info-value.disabled { color: var(--green); }

/* Download */
.download-section { text-align: center; margin-bottom: 28px; }
.download-btn {
    display: inline-flex; flex-direction: column; align-items: center; gap: 4px;
    padding: 20px 48px; background: rgba(0,240,255,0.05); border: 1px solid var(--cyan);
    border-radius: 4px; color: var(--cyan); text-decoration: none; transition: all 0.2s;
}
.download-btn:hover { background: rgba(0,240,255,0.1); transform: translateY(-2px); }
.download-btn i { font-size: 1.5rem; }
.download-btn span { font-size: 0.85rem; font-weight: 600; letter-spacing: 0.1em; }
.download-btn small { font-size: 0.7rem; color: var(--text-dim); }

/* Connect */
.connect-section { background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; margin-bottom: 28px; overflow: hidden; }
.code-block { padding: 16px 20px; }
.code-block code { color: var(--green); font-size: 0.95rem; }

/* Flag */
.flag-section { background: var(--bg2); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; margin-bottom: 40px; }
.flag-form { display: flex; gap: 12px; padding: 16px 20px; }
.flag-form input {
    flex: 1; padding: 12px 16px; background: var(--bg); border: 1px solid var(--border);
    border-radius: 4px; color: var(--white); font-family: 'Share Tech Mono', monospace;
    font-size: 0.9rem; outline: none;
}
.flag-form input:focus { border-color: var(--cyan); }
.submit-btn {
    padding: 12px 24px; background: var(--cyan); color: var(--bg); border: none;
    border-radius: 4px; font-family: 'Share Tech Mono', monospace; font-weight: 600;
    font-size: 0.85rem; cursor: pointer; letter-spacing: 0.05em; transition: opacity 0.2s;
}
.submit-btn:hover { opacity: 0.85; }
.flag-ok { padding: 14px 20px; background: rgba(0,255,106,0.08); border-top: 1px solid rgba(0,255,106,0.2); color: var(--green); font-size: 0.85rem; }
.flag-fail { padding: 14px 20px; background: rgba(255,42,42,0.08); border-top: 1px solid rgba(255,42,42,0.2); color: var(--red); font-size: 0.85rem; }

/* Footer */
.hud-footer { border-top: 1px solid var(--border); padding: 16px 0; text-align: center; }
.hud-footer p { font-size: 0.7rem; color: var(--text-dim); letter-spacing: 0.15em; }

@media (max-width: 768px) {
    .info-grid { grid-template-columns: repeat(3, 1fr); }
    .hud-header h1 { font-size: 1.3rem; }
    .flag-form { flex-direction: column; }
}