img {
    max-width: 100%;
    height: auto;
    display: block;
}

html {
    overflow-x: hidden;
}

body {
    overflow-wrap: break-word;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f4f4;
    color: #222;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1150px;
    margin: 0 auto;
}

.site-header {
    background: #111;
    color: #fff;
    padding: 20px 0;
}

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

.logo a {
    color: #fff;
    font-size: 26px;
    font-weight: bold;
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 20px;
}

.main-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

.main-nav a:hover,
.main-nav a.active {
    color: #e60000;
}

.hero {
    background:
        linear-gradient(rgba(0, 0, 0, 0.65), rgba(0, 0, 0, 0.65)),
        url("../images/rahalin-hero.png");

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    padding: 130px 0;
    text-align: center;
}

.hero h1 {
    font-size: 52px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 22px;
    margin-bottom: 30px;
}

.btn {
    display: inline-block;
    background: #e60000;
    color: #fff;
    text-decoration: none;
    padding: 14px 28px;
    font-weight: bold;
    border-radius: 4px;
}

.btn:hover {
    background: #b80000;
}

.section {
    background: #fff;
    padding: 60px 0;
}

.section.gray {
    background: #ededed;
}

.section h2 {
    margin-bottom: 18px;
    font-size: 34px;
}

.section p {
    margin-bottom: 16px;
}

.page-banner {
    background: #222;
    color: #fff;
    padding: 70px 0;
    text-align: center;
}

.page-banner h1 {
    font-size: 44px;
    margin-bottom: 10px;
}

.page-banner p {
    font-size: 20px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.card {
    background: #fff;
    border-left: 5px solid #e60000;
    padding: 25px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.12);
}

.card h2,
.card h3 {
    margin-bottom: 10px;
}

.card h4 {
    color: #e60000;
    margin-bottom: 12px;
}

.class-list {
    display: grid;
    gap: 25px;
}

.class-item {
    background: #f8f8f8;
    border-left: 5px solid #e60000;
    padding: 25px;
}

.class-item h2 {
    margin-bottom: 5px;
}

.class-item h4 {
    color: #e60000;
    margin-bottom: 12px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

form {
    background: #f8f8f8;
    padding: 25px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.12);
}

label {
    display: block;
    margin-top: 15px;
    font-weight: bold;
}

input,
textarea {
    width: 100%;
    padding: 12px;
    margin-top: 5px;
    border: 1px solid #bbb;
    font-size: 16px;
}

textarea {
    min-height: 140px;
}

button {
    margin-top: 20px;
    background: #e60000;
    color: #fff;
    border: none;
    padding: 13px 24px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}

button:hover {
    background: #b80000;
}

.alert {
    padding: 12px;
    margin-bottom: 20px;
    font-weight: bold;
}

.alert.success {
    background: #d9f7d9;
    color: #145214;
    border-left: 5px solid #1d7a1d;
}

.alert.error {
    background: #ffdede;
    color: #7a1111;
    border-left: 5px solid #b80000;
}

.site-footer {
    background: #111;
    color: #fff;
    padding-top: 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 35px;
    padding-bottom: 30px;
}

.site-footer h3 {
    margin-bottom: 12px;
}

.copyright {
    background: #000;
    text-align: center;
    padding: 15px;
}

@media (max-width: 800px) {
    .header-flex,
    .main-nav {
        flex-direction: column;
        align-items: flex-start;
    }

    .main-nav {
        margin-top: 15px;
        gap: 10px;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p,
    .page-banner p {
        font-size: 18px;
    }

    .card-grid,
    .contact-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
}