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

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

/* HEADER */
.header {
    background: #1f7a3d;
    padding: 15px 0;
    color: #fff;
}

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

.search {
    width: 40%;
    padding: 8px;
    border-radius: 20px;
    border: none;
}

/* HERO */
.hero {
    background: #000;
    color: #fff;
    padding: 60px 0;
}

.hero-content {
    display: flex;
    gap: 30px;
    align-items: center;
}

.hero-text {
    flex: 1;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
}

.btn {
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    margin-right: 10px;
}

.primary {
    background: #1f7a3d;
    color: #fff;
}

.outline {
    border: 1px solid #fff;
    color: #fff;
}

/* ABOUT */
.about {
    display: flex;
    padding: 60px 0;
    gap: 40px;
}

.about-right .card {
    background: #1f7a3d;
    color: #fff;
    padding: 20px;
    margin-bottom: 10px;
    border-radius: 10px;
}

/* COURSES */
.courses {
    background: #0a0a0a;
    color: #fff;
    padding: 60px 0;
    text-align: center;
}

.filters button {
    margin: 10px;
    padding: 8px 15px;
    border-radius: 20px;
    border: none;
}

.course-grid {
    display: flex;
    gap: 20px;
    margin-top: 30px;
}

.course-card {
    background: #1f7a3d;
    padding: 15px;
    border-radius: 15px;
    flex: 1;
}

.course-card img {
    width: 100%;
    border-radius: 10px;
}

/* CONTACT */
.contact {
    display: flex;
    padding: 60px 0;
    gap: 40px;
}

.contact-right form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-right input,
.contact-right textarea {
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #ccc;
}

/* FOOTER */
.footer {
    background: #1f7a3d;
    color: #fff;
    padding: 30px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
}

/* RESPONSIVO */
@media (max-width: 768px) {
    .hero-content,
    .about,
    .contact,
    .course-grid {
        flex-direction: column;
    }

    .search {
        width: 100%;
    }
}