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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    line-height: 1.8;
    background-color: #fff5f8;
    color: #444;
    padding-top: 85px;
    font-size: 20px;
    /* Nội dung chính to rõ */
}

/* THANH MENU */
header {
    background: linear-gradient(135deg, #ff85a1 0%, #d81b60 100%);
    padding: 12px 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

nav {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

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

nav ul li {
    margin-right: 25px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    /* GIẢM THEO Ý BẠN */
}

nav ul li a:hover {
    text-decoration: underline;
}

.search-box {
    background: white;
    padding: 5px 15px;
    border-radius: 25px;
    display: flex;
    align-items: center;
}

.search-box input {
    border: none;
    outline: none;
    width: 150px;
    font-size: 14px;
}

.search-icon {
    cursor: pointer;
}

.auth-links {
    color: white;
    font-weight: bold;
    font-size: 16px;
    /* GIẢM THEO Ý BẠN */
}

.auth-links a {
    color: white;
    text-decoration: none;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* CHỮ ĐÈ TRÊN ẢNH (TRANG CHỦ) */
.hero-section {
    position: relative;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('https://file3.qdnd.vn/data/images/0/2024/04/24/upload_2072/thi%20sinh%202.jpg?dpi=150&quality=100&w=870');
    background-size: cover;
    background-position: center;
    border-radius: 20px;
    margin: 0 20px 40px 20px;
    text-align: center;
}

.hero-overlay h1 {
    color: white !important;
    font-size: 4.5rem;
    text-shadow: 3px 3px 5px rgba(0, 0, 0, 0.8);
}

.hero-overlay p {
    color: white !important;
    /* Chuyển dòng chữ nhỏ sang trắng */
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
    /* Thêm bóng cho dễ đọc */
    font-size: 20px;
    /* Kích thước chữ nhỏ */
}

main {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
    background: white;
    border-radius: 20px;
}

.content-flex {
    display: flex;
    align-items: center;
    gap: 40px;
    margin: 40px 0;
    padding: 20px;
}

.content-flex.reverse {
    flex-direction: row-reverse;
}

.text-side {
    flex: 1;
}

.image-side {
    flex: 1;
    text-align: center;
}

.side-img {
    width: 100%;
    max-width: 450px;
    height: auto;
    border-radius: 10px;
}

h2 {
    color: #ad1457;
    border-left: 6px solid #ff85a1;
    padding-left: 15px;
    margin-bottom: 20px;
    font-size: 38px;
    /* Giữ to rõ */
}

.situation-card {
    background: #fff0f3;
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 20px;
    border: 1px dashed #ff85a1;
}

/* PHẦN LIÊN HỆ - GIẢM THEO Ý BẠN */
#lienhe p {
    font-size: 16px;
}

footer {
    text-align: center;
    padding: 30px;
    background: #333;
    color: #ff85a1;
    margin-top: 50px;
    font-size: 14px;
}