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

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #0b1020;
    color: #e5e7eb;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */

.header {
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(12px);
    background: rgba(11,16,32,0.9);
    border-bottom: 1px solid rgba(148,163,184,0.25);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.04em;
}

.logo span {
    color: #38bdf8;
}

.nav a {
    margin-left: 18px;
    font-size: 0.95rem;
    color: #cbd5f5;
    opacity: 0.9;
}

.nav a:hover {
    color: #38bdf8;
}

/* Hero */

.hero {
    padding: 56px 0 40px;
    background: radial-gradient(circle at top left, #1f2937 0, #020617 55%);
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
    gap: 32px;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}

.hero-text p {
    color: #cbd5f5;
    margin-bottom: 20px;
    max-width: 32rem;
}

.btn-primary {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 999px;
    background: linear-gradient(135deg, #38bdf8, #6366f1);
    color: #0b1020;
    font-weight: 600;
    font-size: 0.95rem;
}

.btn-primary:hover {
    opacity: 0.9;
}

.hero-card {
    border-radius: 18px;
    padding: 18px 20px;
    background: radial-gradient(circle at top right, rgba(56,189,248,0.16), rgba(15,23,42,0.9));
    border: 1px solid rgba(148,163,184,0.35);
    box-shadow: 0 18px 40px rgba(15,23,42,0.9);
}

.hero-card h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #a5b4fc;
    margin-bottom: 10px;
}

.hero-card ul {
    list-style: none;
    font-size: 0.95rem;
}

.hero-card li {
    padding-left: 12px;
    position: relative;
    margin-bottom: 6px;
}

.hero-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: #38bdf8;
}

/* Sections */

.section {
    padding: 40px 0;
    background: #020617;
}

.section-muted {
    background: #050b16;
}

.section h2 {
    font-size: 1.4rem;
    margin-bottom: 18px;
}

.grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    background: #020617;
    border-radius: 12px;
    padding: 16px 18px;
    border: 1px solid rgba(148,163,184,0.25);
}

.card h3 {
    font-size: 1rem;
    margin-bottom: 8px;
    color: #e5e7eb;
}

.card p {
    font-size: 0.92rem;
    color: #cbd5f5;
}

.section p {
    max-width: 50rem;
    color: #cbd5f5;
}

.email {
    margin-top: 8px;
    font-weight: 600;
    color: #38bdf8;
}

/* Footer */

.footer {
    border-top: 1px solid rgba(148,163,184,0.35);
    padding: 14px 0 18px;
    background: #020617;
    font-size: 0.85rem;
    color: #9ca3af;
}

.footer .container {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
}

.footer-right {
    opacity: 0.9;
}

/* Responsive */

@media (max-width: 768px) {
    .hero-inner {
        grid-template-columns: minmax(0,1fr);
    }

    .hero {
        padding-top: 32px;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .nav a {
        margin-left: 0;
        margin-right: 14px;
    }
}