/* RESET CƠ BẢN */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* BODY */
body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #fdf6f6;
    color: #333;
}

/* HEADER */
.header {
    background: linear-gradient(to right, #b71c1c, #2e7d32);
    color: white;
    text-align: center;
    padding: 40px 20px;
}

.header h1 {
    font-size: 32px;
    margin-bottom: 10px;
}

.header p {
    font-size: 16px;
}

/* MENU */
.menu {
    background: #ffffff;
    text-align: center;
    padding: 15px 0;
    border-bottom: 1px solid #ddd;
}

.menu a {
    text-decoration: none;
    color: #b71c1c;
    margin: 0 12px;
    font-weight: bold;
}

.menu a:hover {
    color: #2e7d32;
}

/* CONTAINER */
.container {
    max-width: 900px;
    margin: 40px auto;
    padding: 30px;
    background: #ffffff;
    border-radius: 10px;
}

/* TIÊU ĐỀ TRONG NỘI DUNG */
.title {
    text-align: center;
    font-size: 28px;
    color: #b71c1c;
    margin-bottom: 15px;
}

/* GẠCH TRANG TRÍ DƯỚI TIÊU ĐỀ */
.title::after {
    content: "";
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #b71c1c, #2e7d32);
    margin: 10px auto 0;
}

/* ĐOẠN VĂN */
.container p {
    text-align: center;
    margin: 15px 0;
    line-height: 1.7;
}

/* ẢNH */
.container img {
    display: block;
    margin: 25px auto;
    max-width: 100%;
    border-radius: 10px;
}

/* FOOTER */
.footer {
    background: #b71c1c;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: 40px;
    font-size: 14px;
}
/* ===============================
   CONTACT FORM – GÓP Ý
================================ */
form {
    max-width: 520px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    padding: 30px 28px;
    border-radius: 20px;
    box-shadow: 0 18px 40px rgba(0,0,0,0.12);
}

/* input & textarea */
form input,
form textarea {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 16px;
    border-radius: 12px;
    border: 1.5px solid #ddd;
    font-size: 15px;
    font-family: inherit;
    transition: 0.3s;
}

/* focus */
form input:focus,
form textarea:focus {
    outline: none;
    border-color: #c62828;
    box-shadow: 0 0 0 3px rgba(198,40,40,0.15);
}

/* nút gửi */
form button {
    width: 100%;
    padding: 14px;
    border-radius: 999px;
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: white;
    cursor: pointer;
    background: linear-gradient(135deg, #c62828, #2e7d32);
    transition: 0.35s;
}

/* hover nút */
form button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0,0,0,0.25);
}
/* ===== NỘI DUNG CHÍNH ===== */
.main-content {
    text-align: center;
    padding: 60px 20px;
    background: #fffaf5;
}

.main-title {
    font-size: 32px;
    color: #b71c1c;
    margin-bottom: 40px;
    position: relative;
}

.main-title::after {
    content: "";
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, #c62828, #2e7d32);
    display: block;
    margin: 12px auto 0;
    border-radius: 2px;
}

/* GRID LINK */
.content-grid {
    max-width: 900px;
    margin: auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
}

.content-grid a {
    background: #ffffff;
    padding: 20px;
    border-radius: 14px;
    text-decoration: none;
    color: #333;
    font-size: 18px;
    font-weight: 600;
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.content-grid a span {
    margin-top: 10px;
}

.content-grid a:hover {
    transform: translateY(-6px);
    background: #fff3e0;
    color: #b71c1c;
}

/* QUOTE */
.tet-quote {
    margin-top: 50px;
    font-style: italic;
    font-size: 18px;
    color: #8e0000;
}
.content-video {
    width: 100%;
    max-width: 800px;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
}
/* TIÊU ĐỀ PHẦN LỚN */
.section-title {
    font-size: 30px;
    font-weight: bold;
    text-transform: uppercase;
    text-align: center;
    color: #b30000;              /* đỏ Tết */
    margin: 50px 0 30px;
    padding: 12px 0;
    border-top: 3px solid #e60000;
    border-bottom: 3px solid #e60000;
    background: #fff5f5;
    letter-spacing: 1px;
}
.video-box {
    position: relative;
    max-width: 800px;
    margin: 0 auto 40px;
}

.video-box video {
    width: 100%;
    border-radius: 12px;
}

.video-item {
    margin-bottom: 40px;
    text-align: center;
}

.video-title {
    font-size: 22px;
    font-weight: bold;
    color: #b30000; /* đỏ Tết */
    margin-bottom: 12px;
    text-transform: uppercase;
}

video {
    width: 80%;
    max-width: 800px;
    border-radius: 8px;
}