:root {
    --primary: #c20000;
    --primary-dark: #800000;
    --accent: #ff4c4c;
    --bg: #f9f9f9;
    --text: #222;
    --white: #fff;
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

header {
    background: var(--primary);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 8px rgba(128,0,0,0.12);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
}

.logo {
    font-weight: 700;
    font-size: 1.6rem;
    letter-spacing: 2px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav ul li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

.hero {
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero .cta-btn {
    background: var(--white);
    color: var(--primary);
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    margin-top: 1.5rem;
    transition: background 0.2s, color 0.2s;
    text-decoration: none;
    display: inline-block;
}

.hero .cta-btn:hover {
    background: var(--accent);
    color: var(--white);
}

section {
    max-width: 1000px;
    margin: 3rem auto;
    padding: 2rem;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(128,0,0,0.06);
}

section h2 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 2rem;
    font-weight: 700;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(250px,1fr));
    gap: 2rem;
}

.card {
    background: var(--bg);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 1.2rem;
    box-shadow: 0 1px 4px rgba(128,0,0,0.05);
    text-align: center;
}

.card h3 {
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
}

.upgrade-list {
    list-style: disc inside;
    padding-left: 1.5rem;
}

form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1rem;
}

form input, form textarea {
    padding: 0.75rem;
    border: 1px solid var(--primary);
    border-radius: 6px;
    font-size: 1rem;
}

form button {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 0.75rem;
    border-radius: 6px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.2s;
}

form button:hover {
    background: var(--accent);
}

#formResponse {
    margin-top: 1rem;
    color: var(--primary-dark);
    font-weight: 500;
}

footer {
    text-align: center;
    padding: 1.2rem 0;
    background: var(--primary-dark);
    color: var(--white);
    margin-top: 2rem;
    border-radius: 0 0 12px 12px;
}

@media (max-width: 700px) {
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    section {
        padding: 1rem;
    }
    .hero {
        padding: 2rem 1rem;
    }
    .card-grid {
        grid-template-columns: 1fr;
    }
}