/* --- RESET & VARIABLES --- */
:root {
    --bg: #0a0a0a;
    --panel: #111111;
    --text-main: #e0e0e0;
    --text-muted: #888888;
    
    /* THE AMBER PALETTE */
    --amber: #ff9900;
    --amber-dim: rgba(255, 153, 0, 0.2);
    
    /* STATUS COLORS */
    --green: #00ff41;
    --red: #ff3333;
    --blue: #00ccff;
    --purple: #bf00ff;
    
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

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

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4 { font-family: var(--font-mono); font-weight: 700; text-transform: uppercase; letter-spacing: -0.05em; }
h1 { font-size: 3rem; line-height: 1.1; margin-bottom: 1rem; }
h2 { font-size: 2rem; color: var(--amber); margin-bottom: 1.5rem; letter-spacing: 0.1em; }
a { text-decoration: none; color: inherit; transition: 0.3s; }

/* --- UTILITIES --- */
.container { max-width: 1000px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 600px; }
.text-amber { color: var(--amber); }

/* --- SCANLINE EFFECT (Subtle Texture) --- */
.scanline {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0) 50%, rgba(0,0,0,0.1) 50%, rgba(0,0,0,0.1));
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 999;
    opacity: 0.3;
}

/* --- NAVIGATION --- */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 40px;
    border-bottom: 1px solid #222;
    font-family: var(--font-mono);
}
.logo { font-weight: 700; font-size: 1.2rem; letter-spacing: 0.1em; }
.blink { animation: blink 1s infinite; color: var(--amber); }
@keyframes blink { 50% { opacity: 0; } }

.nav-links a { margin-left: 30px; font-size: 0.9rem; color: var(--text-muted); }
.nav-links a:hover { color: var(--amber); }
.nav-btn { color: var(--amber) !important; border: 1px solid var(--amber); padding: 8px 16px; }
.nav-btn:hover { background: var(--amber); color: #000 !important; }

/* --- HERO --- */
.hero { padding: 120px 0; border-bottom: 1px solid #222; }
.status-indicator { font-family: var(--font-mono); font-size: 0.8rem; margin-bottom: 20px; color: var(--text-muted); }
.hero-sub { font-size: 1.2rem; color: var(--text-muted); max-width: 600px; margin-bottom: 40px; }

.btn {
    display: inline-block; padding: 15px 30px; font-family: var(--font-mono); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.05em;
    border: 1px solid transparent; cursor: pointer;
}
.btn.primary { background: var(--amber); color: #000; }
.btn.primary:hover { background: #fff; }
.btn.secondary { border-color: #333; color: var(--text-muted); margin-left: 20px; }
.btn.secondary:hover { border-color: var(--amber); color: var(--amber); }

/* --- PROBLEM SECTION & TIMELINE --- */
.problem { padding: 80px 0; background: #0f0f0f; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.check-list { list-style: none; margin-top: 20px; font-family: var(--font-mono); }
.check-list li { margin-bottom: 10px; color: var(--text-muted); }
.check-list strong { color: var(--text-main); }
.icon-x { color: var(--red); margin-right: 10px; }
.icon-check { color: var(--green); margin-right: 10px; }

.timeline {
    border-left: 2px solid #333;
    padding-left: 30px;
    height: 300px;
    display: flex; flex-direction: column; justify-content: space-between;
    position: relative;
}
.timeline::before {
    content: ''; position: absolute; left: -2px; top: 0; height: 50%; width: 2px;
    background: var(--amber); /* Active line visual */
}
.point { position: relative; }
.point::before {
    content: ''; position: absolute; left: -36px; top: 5px;
    width: 10px; height: 10px; background: #000; border: 2px solid var(--amber);
}
.point.end::before { border-color: var(--text-muted); }
.label { display: block; font-family: var(--font-mono); font-weight: bold; color: var(--amber); }
.desc { display: block; font-size: 0.9rem; color: var(--text-muted); }

/* --- PROTOCOL / DIAGNOSTIC GRID --- */
.protocol { padding: 100px 0; }
.section-header { margin-bottom: 60px; max-width: 600px; }

.diagnostic-grid {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--panel); border: 1px solid #222; padding: 30px;
    transition: transform 0.2s;
}
.card:hover { transform: translateY(-5px); border-color: #444; }

.card-header { font-family: var(--font-mono); font-size: 0.8rem; margin-bottom: 15px; display: flex; align-items: center; }
.signal { margin-right: 10px; font-size: 1.2rem; }
.card h3 { font-size: 1.5rem; margin-bottom: 10px; color: #fff; }
.definition { font-size: 0.95rem; color: #ccc; margin-bottom: 20px; height: 60px; } /* Fixed height for alignment */

.specs { background: #000; padding: 15px; border: 1px solid #222; margin-bottom: 20px; font-family: var(--font-mono); font-size: 0.85rem; }
.spec-row { display: flex; justify-content: space-between; margin-bottom: 5px; }
.spec-row:last-child { margin-bottom: 0; }
.details { font-size: 0.85rem; color: var(--text-muted); line-height: 1.4; }

/* Status Colors */
.status-green .signal, .status-green h3 { color: var(--green); }
.status-green { border-top: 3px solid var(--green); }

.status-yellow .signal, .status-yellow h3 { color: var(--amber); }
.status-yellow { border-top: 3px solid var(--amber); }

.status-red .signal, .status-red h3 { color: var(--red); }
.status-red { border-top: 3px solid var(--red); }

.status-purple .signal, .status-purple h3 { color: var(--purple); }
.status-purple { border-top: 3px solid var(--purple); }

.status-blue .signal, .status-blue h3 { color: var(--blue); }
.status-blue { border-top: 3px solid var(--blue); }

/* --- COMPARISON TABLE --- */
.comparison { background: #0f0f0f; padding: 80px 0; }
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-family: var(--font-mono); text-align: left; }
th { border-bottom: 2px solid var(--amber); padding: 20px; color: var(--amber); }
td { border-bottom: 1px solid #333; padding: 20px; color: var(--text-muted); }
td strong { color: #fff; }

/* --- CONTACT --- */
.contact { padding: 100px 0; text-align: center; }
.contact h2 { color: #fff; }
.contact p { margin-bottom: 40px; color: var(--text-muted); }

form { text-align: left; background: var(--panel); padding: 40px; border: 1px solid #333; }
.form-group { margin-bottom: 20px; }
label { display: block; font-family: var(--font-mono); font-size: 0.8rem; margin-bottom: 10px; color: var(--amber); }
input, textarea {
    width: 100%; background: #000; border: 1px solid #333; color: #fff;
    padding: 15px; font-family: var(--font-sans); font-size: 1rem;
}
input:focus, textarea:focus { outline: none; border-color: var(--amber); }
.full-width { width: 100%; margin-top: 10px; }

/* --- FOOTER --- */
footer { padding: 60px 0; border-top: 1px solid #222; font-family: var(--font-mono); font-size: 0.8rem; }
.footer-grid { display: flex; justify-content: space-between; margin-bottom: 40px; }
.col h4 { color: #fff; margin-bottom: 15px; }
.col a { color: var(--text-muted); display: block; margin-bottom: 5px; }
.col a:hover { color: var(--amber); }
.copyright { text-align: center; color: #444; }

/* --- MOBILE RESPONSIVE --- */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    .grid-2 { grid-template-columns: 1fr; }
    .nav-links { display: none; } /* Simplified for MVP */
    .timeline { display: none; }
}