:root {
    --bg: #1b1d22;
    --bg-alt: #22252b;
    --text: #e6e6e6;
    --muted: #9aa0a6;
    --accent: #e53935;
    --accent-soft: rgba(229,57,53,0.15);
}

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

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

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

a:hover {
    text-decoration: underline;
}

/* Top navigation bar */
header {
    background: linear-gradient(180deg, #121520, #1b1d22);
    border-bottom: 1px solid #1f2430;
}

.nav {
    width: 100%;
    margin: 0;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 0.2px;
}

.brand img {
    width: 32px;
    height: 32px;
}

.nav-links a {
    margin-left: 22px;
    font-size: 0.95rem;
    color: var(--text);
}

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

/* Hero section */
.hero {
    background:
        radial-gradient(800px 300px at 50% 0%, rgba(74,163,255,0.15), transparent 70%),
        linear-gradient(180deg, var(--bg-alt), var(--bg));
    padding: 90px 20px 80px;
    border-bottom: 1px solid #1f2430;
}

.hero-inner {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--muted);
    margin-bottom: 28px;
}

.hero-actions a {
    display: inline-block;
    padding: 12px 22px;
    border-radius: 8px;
    margin: 0 8px;
    font-weight: 500;
}

.btn-primary {
    background: #4aa3ff;
    color: #000;
}

.btn-secondary {
    border: 1px solid #2a3142;
    color: var(--text);
    background: transparent;
}

.btn-secondary:hover {
    background: #1a2030;
}

/* Content sections */
section {
    max-width: 1000px;
    margin: 0 auto;
    padding: 70px 20px;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 14px;
}

section p {
    color: var(--muted);
    max-width: 720px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.feature {
    background: var(--bg-alt);
    border: 1px solid #1f2430;
    border-radius: 14px;
    padding: 22px;
}

.feature h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.feature p {
    font-size: 0.95rem;
}

/* Footer */
footer {
    border-top: 1px solid #1f2430;
    background: #0c0e13;
    padding: 30px 20px;
    color: var(--muted);
}

.footer-inner {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-inner span {
    font-size: 0.9rem;
}

@media (max-width: 700px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .nav-links {
        display: none;
    }
}