:root {
    --primary: #d71920;
    --dark: #111827;
    --text: #374151;
    --muted: #6b7280;
    --light: #f5f6f8;
    --white: #ffffff;
    --border: #e5e7eb;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family:
        Arial,
        Helvetica,
        sans-serif;

    color: var(--text);
    background: var(--white);
}

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

.container {
    width: min(1180px, calc(100% - 40px));
    margin: auto;
}

.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
}

.header-inner {
    min-height: 72px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 30px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo a {
    color: var(--primary);
}

nav {
    display: flex;
    align-items: center;
    gap: 24px;

    font-size: 14px;
    font-weight: 600;
}

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

.btn-login {
    padding: 10px 18px;

    background: var(--primary);
    color: white !important;

    border-radius: 5px;
}

.hero {
    padding: 100px 0;

    background:
        linear-gradient(
            135deg,
            #111827,
            #374151
        );

    color: white;
}

.hero-label {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    opacity: .8;
}

.hero h1 {
    margin: 15px 0;

    font-size: clamp(48px, 8vw, 86px);

    line-height: .95;
}

.hero p {
    max-width: 650px;

    font-size: 20px;
    line-height: 1.6;

    color: #d1d5db;
}

.hero-actions {
    margin-top: 30px;

    display: flex;
    gap: 12px;
}

.btn {
    display: inline-block;

    padding: 13px 22px;

    border-radius: 5px;

    font-weight: 700;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--dark);
}

.modules {
    padding: 80px 0;
    background: var(--light);
}

.section-heading {
    margin-bottom: 40px;
}

.section-heading span {
    color: var(--primary);

    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.5px;
}

.section-heading h2 {
    margin-top: 10px;

    font-size: 34px;

    color: var(--dark);
}

.module-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 20px;
}

.module-card {
    padding: 30px;

    background: white;

    border: 1px solid var(--border);

    border-radius: 8px;

    transition: .2s;
}

.module-card:hover {
    transform: translateY(-4px);

    box-shadow:
        0 15px 35px
        rgba(0,0,0,.08);
}

.module-icon {
    font-size: 34px;
}

.module-card h3 {
    margin-bottom: 8px;

    color: var(--dark);
}

.module-card p {
    margin: 0;

    line-height: 1.6;

    color: var(--muted);
}

footer {
    padding: 30px 0;

    background: var(--dark);

    color: #9ca3af;

    font-size: 14px;
}

@media (max-width: 800px) {

    .header-inner {
        flex-direction: column;

        padding: 20px 0;
    }

    nav {
        flex-wrap: wrap;

        justify-content: center;

        gap: 14px;
    }

    .hero {
        padding: 70px 0;
    }

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

}