:root {
    --bg-deep: #050505;
    --bg-zinc: #0a0a0b;
    --accent-blue: #3b82f6;
    --accent-blue-deep: #1e3a8a;
    --accent-glow: rgba(59, 130, 246, 0.15);
    --border-light: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-muted: #94a3b8;
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(59, 130, 246, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* -------------------
   HEADER
------------------- */
.header {
    height: 80px;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

.brand-text .main {
    display: block;
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #fff;
}

.brand-text .sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-blue);
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: #fff;
}

.nav-link-btn {
    background: var(--accent-blue);
    color: #fff;
    padding: 10px 24px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}

.nav-link-btn:hover {
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

/* -------------------
   HERO
------------------- */
.hero {
    padding: 180px 0 120px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(circle, rgba(30, 58, 138, 0.1) 0%, transparent 70%);
    z-index: -1;
}

.badge {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--accent-blue);
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 24px;
}

.gradient {
    background: linear-gradient(135deg, #fff 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 800px;
    margin: 0 auto 48px;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn {
    padding: 14px 36px;
    border-radius: 100px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.btn-blue {
    background: var(--accent-blue);
    color: #fff;
}

.btn-blue:hover {
    box-shadow: 0 0 30px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-outline {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-light);
    color: #fff;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* -------------------
   SERVICES (CARDS)
------------------- */
.section {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 16px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.defense-card {
    background: var(--bg-zinc);
    border: 1px solid var(--border-light);
    border-radius: 24px;
    padding: 48px;
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.defense-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.defense-card.highlight {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.1) 0%, var(--bg-zinc) 100%);
}

.defense-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.defense-card p {
    color: var(--text-muted);
    margin-bottom: 32px;
    font-size: 1rem;
}

.check-list {
    list-style: none;
}

.check-list li {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.check-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
}

/* -------------------
   MISSION
------------------- */
.mission-box {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.2) 0%, rgba(10, 10, 11, 0.5) 100%);
    border: 1px solid var(--border-light);
    padding: 80px;
    border-radius: 40px;
    display: flex;
    align-items: center;
    gap: 60px;
    backdrop-filter: blur(8px);
}

.mission-visual {
    font-size: 5rem;
    filter: drop-shadow(0 0 20px var(--accent-blue));
}

.mission-text h2 {
    font-size: 2.5rem;
    margin-bottom: 24px;
    font-weight: 800;
}

.mission-text p {
    color: var(--text-muted);
    font-size: 1.25rem;
}

/* -------------------
   FOOTER
------------------- */
.footer {
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-light);
}

.footer-layout {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-logo {
    width: 32px;
    height: 32px;
    margin-bottom: 16px;
    border-radius: 6px;
}

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

.footer-copy p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.85rem;
}

@media (max-width: 900px) {
    .mission-box { flex-direction: column; text-align: center; padding: 40px; }
    .nav-links { display: none; }
    .footer-layout { flex-direction: column; text-align: center; gap: 32px; }
}