/* ═══════════════════════════════════════════════════════════════════════════
   GeoShield — Landing Page · Premium Tactical Theme v5.0
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    --bg-void:    #06090f;
    --bg-base:    #0d1117;
    --bg-surface: #161b22;
    --bg-card:    #0d1117;
    --border:     #21262d;
    --border-glow:rgba(0,240,212,0.25);
    --text-primary:#e6edf3;
    --text-secondary:#8b949e;
    --text-dim:   #484f58;
    --accent:     #00f0d4;
    --accent-dim: rgba(0,240,212,0.12);
    --success:    #3fb950;
    --warning:    #d29922;
    --danger:     #f85149;
    --ultra:      #bc8cff;
    --font-head:  'Outfit', sans-serif;
    --font-body:  'Inter', sans-serif;
    --font-mono:  'JetBrains Mono', monospace;
    --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background: var(--bg-void);
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ── Grid Background ──────────────────────────────────────────────────── */
.grid-bg {
    position: fixed; inset: 0;
    background-image:
        linear-gradient(rgba(0,240,212,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,240,212,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    z-index: 0;
    pointer-events: none;
}

.glow-orb {
    position: fixed;
    width: 600px; height: 600px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    filter: blur(120px);
}

.orb-1 {
    top: -200px; right: -100px;
    background: radial-gradient(circle, rgba(0,240,212,0.12), transparent 70%);
    animation: orbFloat 20s ease-in-out infinite alternate;
}

.orb-2 {
    bottom: -200px; left: -100px;
    background: radial-gradient(circle, rgba(88,166,255,0.08), transparent 70%);
    animation: orbFloat 25s ease-in-out infinite alternate-reverse;
}

@keyframes orbFloat {
    0%   { transform: translate(0, 0); }
    100% { transform: translate(40px, -30px); }
}

/* ── Layout ───────────────────────────────────────────────────────────── */
.layout-wrapper {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    padding: 30px 40px 60px;
    z-index: 10;
}

/* ── Navbar ────────────────────────────────────────────────────────────── */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0 50px;
}

.brand {
    display: flex; align-items: center; gap: 12px;
    font-family: var(--font-head); font-weight: 700;
    letter-spacing: 2px; font-size: 0.95rem;
}

.brand-mark {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--accent), #00b4a0);
    border-radius: 8px;
    display: flex; justify-content: center; align-items: center;
    font-family: var(--font-mono); font-weight: 700;
    color: var(--bg-void); font-size: 1rem;
    box-shadow: 0 0 20px rgba(0,240,212,0.3);
}

.nav-links {
    display: flex; gap: 36px;
    font-size: 0.85rem; font-weight: 500;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}
.nav-links a:hover { color: var(--text-primary); }

.cta-btn {
    display: inline-block;
    padding: 10px 24px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--accent), #00b4a0);
    color: var(--bg-void);
    text-decoration: none;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.3px;
    transition: all 0.3s var(--ease-out);
    border: none;
    cursor: pointer;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(0,240,212,0.3);
}

.cta-large {
    padding: 15px 36px;
    font-size: 0.95rem;
}

.cta-outline {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    border: 1px solid var(--border);
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.cta-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-dim);
}

/* ── Hero ──────────────────────────────────────────────────────────────── */
.hero {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 40px 0 80px;
    gap: 60px;
}

.hero-left { flex: 1; max-width: 600px; }

.hero-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1.5px;
    color: var(--accent);
    padding: 6px 16px;
    border: 1px solid var(--border-glow);
    border-radius: 100px;
    margin-bottom: 28px;
    background: var(--accent-dim);
}

.hero-title {
    font-family: var(--font-head);
    font-size: 4rem;
    line-height: 1.08;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent), #58a6ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 500px;
}

.hero-actions {
    display: flex; gap: 16px; align-items: center;
}

/* ── Radar ─────────────────────────────────────────────────────────────── */
.hero-right {
    flex-shrink: 0;
}

.radar-container {
    width: 320px; height: 320px;
    position: relative;
}

.radar-svg {
    width: 100%; height: 100%;
}

.radar-sweep {
    transform-origin: 150px 150px;
    animation: radarSpin 4s linear infinite;
}

@keyframes radarSpin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.radar-blip {
    transition: opacity 0.5s, r 0.5s;
}

/* ── Stats Row ─────────────────────────────────────────────────────────── */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 60px;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 24px;
    text-align: center;
    transition: border-color 0.3s;
}

.stat-card:hover { border-color: var(--border-glow); }

.stat-number {
    font-family: var(--font-mono);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ── Bento Grid ────────────────────────────────────────────────────────── */
.bento-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 60px;
}

.bento-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px;
    transition: all 0.3s var(--ease-out);
    position: relative;
    overflow: hidden;
}

.bento-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.bento-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.bento-card:hover::before { opacity: 1; }

.bento-wide {
    grid-column: 1 / -1;
}

.card-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.diff-easy   { background: rgba(63,185,80,0.15); color: #3fb950; }
.diff-medium { background: rgba(210,153,34,0.15); color: #d29922; }
.diff-hard   { background: rgba(248,81,73,0.15); color: #f85149; }
.diff-ultra  { background: rgba(188,140,255,0.15); color: #bc8cff; }

.bento-card h3 {
    font-family: var(--font-head);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.bento-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-footer {
    display: flex; gap: 8px; flex-wrap: wrap;
}

.tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 4px;
    background: var(--bg-base);
    border: 1px solid var(--border);
    color: var(--text-dim);
}

/* ── Architecture Section ──────────────────────────────────────────────── */
.arch-section {
    margin-bottom: 60px;
}

.arch-section h2 {
    font-family: var(--font-head);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 28px;
    text-align: center;
}

.arch-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.arch-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 24px;
    text-align: center;
    transition: all 0.3s;
}

.arch-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-2px);
}

.arch-icon {
    font-size: 2rem;
    margin-bottom: 14px;
}

.arch-card h4 {
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.arch-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ── Bottom CTA ────────────────────────────────────────────────────────── */
.bottom-cta {
    text-align: center;
    padding: 40px 0;
}

.cta-glow {
    box-shadow: 0 0 40px rgba(0,240,212,0.2);
}

.cta-glow:hover {
    box-shadow: 0 0 60px rgba(0,240,212,0.35);
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 1000px) {
    .hero { flex-direction: column; text-align: center; }
    .hero-left { max-width: 100%; }
    .hero-actions { justify-content: center; }
    .hero-subtitle { margin-left: auto; margin-right: auto; }
    .radar-container { width: 260px; height: 260px; }
    .arch-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .layout-wrapper { padding: 20px 20px 40px; }
    .hero-title { font-size: 2.8rem; }
    .stats-row { grid-template-columns: 1fr 1fr; }
    .bento-grid { grid-template-columns: 1fr; }
    .bento-wide { grid-column: 1; }
    .arch-grid { grid-template-columns: 1fr; }
    .nav-links { display: none; }
    .hero-actions { flex-direction: column; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2.2rem; }
    .stat-number { font-size: 2rem; }
}