/* === Reset & Base === */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg-dark: #0a0e17;
    --bg-section: #111827;
    --bg-card: #1a2233;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --risk: #ef4444;
    --opportunity: #22c55e;
    --radius: 12px;
}

html { scroll-behavior: smooth; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(59, 130, 246, 0.15);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.logo-dot { color: var(--accent); }

.nav-links {
    list-style: none;
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--accent); }

/* === Hero === */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-section) 100%);
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--accent);
    font-weight: 500;
}

/* === Sections === */
.section {
    padding: 80px 0;
}

.section-dark {
    background: var(--bg-section);
}

.section-accent {
    background: linear-gradient(135deg, #1e3a5f 0%, #0a0e17 100%);
    padding: 100px 0;
}

.section h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    font-weight: 700;
    margin-bottom: 8px;
}

.section h3 {
    font-size: 1.15rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 32px;
}

.section-intro {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 720px;
}

.section-footer {
    margin-top: 40px;
    color: var(--text-muted);
    font-style: italic;
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: var(--radius);
    padding: 32px;
    margin-top: 24px;
}

.card h4 {
    font-size: 1.1rem;
    margin-bottom: 12px;
    color: var(--accent);
}

.card-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.3;
    margin-bottom: 8px;
}

.card-risk { border-left: 3px solid var(--risk); }
.card-opportunity { border-left: 3px solid var(--opportunity); }

.card ul {
    list-style: none;
    padding: 0;
}

.card ul li {
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
    color: var(--text-muted);
}

.card-risk ul li::before {
    content: "\2715";
    position: absolute;
    left: 0;
    color: var(--risk);
}

.card-opportunity ul li::before {
    content: "\2713";
    position: absolute;
    left: 0;
    color: var(--opportunity);
}

.highlight {
    font-size: 1.1rem;
    color: var(--text);
    font-weight: 600;
    margin-top: 16px;
}

/* === Grids === */
.grid {
    display: grid;
    gap: 24px;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid-5 { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

/* === Metrics === */
.metric-card {
    background: var(--bg-card);
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--text-muted);
}

.metric-icon {
    font-size: 1.5rem;
}

/* === Stats === */
.stat-card {
    background: var(--bg-card);
    border: 1px solid rgba(59, 130, 246, 0.12);
    border-radius: var(--radius);
    padding: 32px;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* === End State === */
.center { text-align: center; }

.big-statement {
    font-size: clamp(1.2rem, 2.5vw, 1.6rem);
    max-width: 700px;
    margin: 24px auto 0;
    line-height: 1.5;
}

/* === Footer === */
.footer {
    padding: 48px 0;
    border-top: 1px solid rgba(59, 130, 246, 0.12);
}

.footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer .logo {
    font-size: 1.3rem;
    margin-bottom: 4px;
    display: block;
}

/* === Responsive === */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .section { padding: 56px 0; }
    .hero { padding: 120px 0 64px; }
    .card { padding: 24px; }
}