:root {
    --brand: #5480c1;
    --brand-dark: #3f67a3;
    --bg: #0f172a;
    --bg-soft: #111827;
    --text: #e5e7eb;
    --muted: #9ca3af;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background: linear-gradient(180deg, #0f172a, #020617);
    color: var(--text);
}

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

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

/* Header */

header {
    background: rgba(2,6,23,0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-weight: 700;
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}

.logo span {
    color: var(--brand);
}

.nav-links a {
    margin-left: 28px;
    font-size: 0.95rem;
    color: var(--muted);
}

.nav-links a:hover {
    color: white;
}

/* Hero */

.hero {
    padding: 120px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 16px;
    line-height: 1.1;
}

.hero h1 span {
    color: var(--brand);
}

.hero p {
    font-size: 1.2rem;
    color: var(--muted);
    max-width: 720px;
    margin: 0 auto 40px;
}

.cta {
    display: inline-block;
    background: var(--brand);
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    color: white;
}

.cta:hover {
    background: var(--brand-dark);
}

/* Features */

.features {
    padding: 100px 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(260px,1fr));
    gap: 32px;
}

.card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 28px;
}

.card h3 {
    margin-top: 0;
    color: white;
}

.card p {
    color: var(--muted);
    line-height: 1.6;
}

/* Footer */

footer {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 40px 0;
    color: var(--muted);
    font-size: 0.9rem;
}

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

.logo img {
    height: 40px;
    width: auto;
}

/* Hamburger */

.hamburger {
    display: none;
    font-size: 28px;
    cursor: pointer;
}

/* Mobile layout */
@media (max-width: 768px) {

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: #020617;
        flex-direction: column;
        text-align: center;
        padding: 20px 0;
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }

    .nav-links a {
        margin: 12px 0;
        display: block;
        font-size: 1.1rem;
    }

    .nav-links.active {
        display: flex;
    }

    .hamburger {
        display: block;
    }
}