:root {
    --bg: #020202;
    --bg-alt: #140303;
    --card: #1a0505;
    --primary: #ef4444;
    --text: #f5f5f5;
    --muted: #b91c1c;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, sans-serif;
}

body {
    background: radial-gradient(circle at top left, #7f1d1d, #020202 70%);
    color: var(--text);
}

/* HEADER */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
}

.logo {
    font-size: 1.4rem;
    font-weight: bold;
}

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

.nav a {
    margin-left: 25px;
    text-decoration: none;
    color: var(--text);
}

.menu-btn {
    display: none;
}

/* HERO */
.hero {
    padding: 100px 40px;
    max-width: 900px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    color: #fca5a5;
    max-width: 600px;
}

.hero-actions {
    margin-top: 30px;
    display: flex;
    gap: 15px;
}

.btn {
    padding: 14px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 500;
}

.btn.primary {
    background: var(--primary);
    color: #020202;
}

.btn.outline {
    border: 1px solid var(--primary);
    color: var(--primary);
}

/* SECTIONS */
section {
    padding: 80px 40px;
}

section h2 {
    font-size: 2rem;
    margin-bottom: 40px;
}

/* CARDS */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 25px;
}

.service-card,
.info-card {
    background: var(--card);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .4);
}

.service-card h3 {
    margin-bottom: 10px;
    color: var(--primary);
}

/* SOBRE */
.sobre p {
    max-width: 700px;
    color: #fecaca;
}

/* CONTATO */
form {
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input,
textarea {
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: #020202;
    color: var(--text);
}

button {
    padding: 14px;
    border-radius: 10px;
    border: none;
    background: var(--primary);
    color: #020202;
    cursor: pointer;
}

/* FOOTER */
.footer {
    padding: 30px;
    text-align: center;
    background: #020202;
    color: #fca5a5;
}

/* 📱 MOBILE */
@media (max-width: 768px) {

    /* HEADER */
    .header {
        padding: 15px 20px;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        height: 100vh;
        background: linear-gradient(180deg,
                #140303,
                #020202);
        display: flex;
        flex-direction: column;
        padding: 80px 30px;
        gap: 25px;
        transition: .3s ease;
        z-index: 999;
    }

    .nav.open {
        right: 0;
    }

    .nav a {
        font-size: 1.2rem;
    }

    .menu-btn {
        display: block;
        font-size: 1.8rem;
        background: none;
        border: none;
        color: var(--text);
        cursor: pointer;
        z-index: 1000;
    }

    /* HERO */
    .hero {
        padding: 80px 20px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    /* SECTIONS */
    section {
        padding: 60px 20px;
    }

    section h2 {
        font-size: 1.6rem;
    }

    /* CARDS */
    .cards {
        grid-template-columns: 1fr;
    }

    /* FORM */
    form {
        width: 100%;
    }

    /* FOOTER */
    .footer {
        font-size: .9rem;
        padding: 25px 15px;
    }
}