:root {
    --bg: #050816;
    --bg-alt: #0f172a;
    --accent: #38bdf8;
    --accent-soft: rgba(56, 189, 248, 0.12);
    --text: #e5e7eb;
    --muted: #9ca3af;
    --card: #020617;
    --border: #1f2937;
    --radius: 16px;
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.8);
    --font: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
        "Segoe UI", sans-serif;
}

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

body {
    font-family: var(--font);
    background: radial-gradient(circle at top, #0f172a 0, #020617 60%);
    color: var(--text);
    min-height: 100vh;
}

/* Layout */

.topbar {
    max-width: 1080px;
    margin: 0 auto;
    padding: 18px 20px 8px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.logo-mark {
    font-size: 1.5rem;
    padding: 8px;
    border-radius: 999px;
    background: var(--accent-soft);
}

.logo-text {
    font-size: 1rem;
}

.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 0.9rem;
}

.nav a {
    text-decoration: none;
    color: var(--muted);
    transition: color 0.2s ease, opacity 0.2s ease;
}

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

.btn-small {
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--accent);
    color: var(--accent);
}

/* Hero */

main {
    max-width: 1080px;
    margin: 0 auto 40px;
    padding: 0 20px 40px;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
    gap: 28px;
    margin-top: 40px;
    align-items: stretch;
}

.hero-text h1 {
    font-size: clamp(1.9rem, 3vw, 2.4rem);
    line-height: 1.2;
    margin-bottom: 14px;
}

.hero-text p {
    color: var(--muted);
    font-size: 0.98rem;
}

.hero-actions {
    margin: 22px 0 10px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-sub {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 6px;
}

.hero-card {
    background: linear-gradient(145deg, #020617, #020617, #020617);
    border-radius: var(--radius);
    padding: 18px 18px 18px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.hero-card h2 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.hero-card ul {
    list-style: none;
}

.hero-card li {
    font-size: 0.92rem;
    color: var(--muted);
    padding: 6px 0;
}

/* Sections */

.section {
    margin-top: 50px;
}

.section h2 {
    font-size: 1.4rem;
    margin-bottom: 16px;
}

.section-alt {
    background: radial-gradient(circle at top left, #111827 0, #020617 60%);
    padding: 26px 20px;
    border-radius: var(--radius);
    border: 1px solid #111827;
}

.wide {
    max-width: 720px;
    color: var(--muted);
    font-size: 0.96rem;
}

/* Cards */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 18px;
}

.card {
    background: rgba(15, 23, 42, 0.95);
    border-radius: var(--radius);
    padding: 16px 16px 18px;
    border: 1px solid var(--border);
    box-shadow: 0 12px 35px rgba(15, 23, 42, 0.6);
}

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

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

/* Contact */

.contact-box {
    margin-top: 12px;
    padding: 16px 18px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: rgba(15, 23, 42, 0.9);
}

.contact-box a {
    color: var(--accent);
    text-decoration: none;
}

.contact-box a:hover {
    text-decoration: underline;
}

.note {
    margin-top: 6px;
    font-size: 0.85rem;
    color: var(--muted);
}

/* Buttons */

.btn-primary,
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 9px 18px;
    font-size: 0.9rem;
    border-radius: 999px;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease,
        border-color 0.2s ease, transform 0.05s ease;
}

.btn-primary {
    background: var(--accent);
    color: #020617;
    font-weight: 600;
}

.btn-primary:hover {
    background: #0ea5e9;
    transform: translateY(-1px);
}

.btn-ghost {
    border-color: #1e293b;
    color: var(--muted);
    background: transparent;
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* Footer */

.footer {
    border-top: 1px solid #111827;
    padding: 16px 20px 22px;
    text-align: center;
    font-size: 0.8rem;
    color: var(--muted);
}

/* Responsive */

@media (max-width: 768px) {
    .topbar {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .nav {
        gap: 14px;
        font-size: 0.85rem;
    }

    .hero {
        grid-template-columns: 1fr;
    }

    .hero-card {
        order: -1;
    }
}