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

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* ===== HEADER ===== */
header {
    background: #0b4f6c;
    color: #fff;
    padding: 20px 0;
}

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

.logo {
    font-size: 22px;
    font-weight: bold;
}

nav {
    margin-top: 10px;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin-right: 20px;
    font-weight: 500;
}

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

/* ===== HERO ===== */
.hero {
    background: linear-gradient(to right, #0b4f6c, #01baef);
    color: #fff;
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 36px;
    margin-bottom: 15px;
}

.hero p {
    font-size: 18px;
    max-width: 800px;
    margin: auto;
}

/* ===== SECTIONS ===== */
section {
    padding: 60px 0;
    background: #fff;
    margin-bottom: 20px;
}

section h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #0b4f6c;
}

.content {
    max-width: 1000px;
    margin: auto;
    padding: 0 20px;
}

/* ===== CONTACT PAGE ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info p {
    margin-bottom: 12px;
    font-size: 15px;
}

.contact-form label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 14px;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form button {
    background: #0b4f6c;
    color: #fff;
    border: none;
    padding: 12px 25px;
    font-size: 15px;
    border-radius: 5px;
    cursor: pointer;
}

.contact-form button:hover {
    background: #083b52;
}

.map-box iframe {
    width: 100%;
    height: 350px;
    border: none;
    border-radius: 8px;
}

/* ===== GRID ===== */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.card {
    background: #f1f4f8;
    padding: 25px;
    border-radius: 8px;
}

/* ===== TABLE ===== */
table {
    width: 100%;
    border-collapse: collapse;
}

table td {
    padding: 10px;
    border-bottom: 1px solid #ddd;
}

/* ===== CONTACT ===== */
.contact-box {
    background: #f1f4f8;
    padding: 30px;
    border-radius: 8px;
}

/* ===== FOOTER ===== */
/* ===== FOOTER CHI TIẾT ===== */
.footer {
    background: #083b52;
    color: #eaeaea;
    padding: 50px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 30px;
}

.footer h3 {
    color: #ffffff;
    margin-bottom: 15px;
    font-size: 16px;
}

.footer p, .footer li, .footer a {
    font-size: 14px;
    color: #eaeaea;
    line-height: 1.6;
}

.footer ul {
    list-style: none;
    padding-left: 0;
}

.footer a {
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    margin-top: 30px;
    padding-top: 15px;
    text-align: center;
    font-size: 13px;
}