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

body {
    background: #fff;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: auto;
    padding: 0 15px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* ===== Top Bar ===== */
.top-bar {
    background: #f4f6f8;
    font-size: 13px;
    color: #555;
}

.top-bar .container {
    height: 40px;
}

.top-left a {
    color: #555;
    text-decoration: none;
    margin: 0 4px;
}

.top-left span {
    color: #aaa;
}

.top-right {
    display: flex;
    gap: 20px;
}

.top-item i {
    margin-right: 6px;
    color: #007bff;
}

/* ===== Main Header ===== */
.main-header {
    background: #fff;
    border-bottom: 1px solid #eee;
    transition: all 0.3s ease;
    z-index: 999;
}

.main-header.sticky {
    position: fixed;
    top: 0;
    width: 100%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.main-header .container {
    height: 90px;
}

/* Logo */
.logo img {
    height: 50px;
}

/* Navigation */
.main-nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

.main-nav a {
    text-decoration: none;
    color: #444;
    font-weight: 500;
    padding-bottom: 5px;
}

.main-nav a.active,
.main-nav a:hover {
    color: #007bff;
    border-bottom: 2px solid #007bff;
}

/* Support */
.header-support {
    display: flex;
    align-items: center;
    gap: 12px;
}

.header-support img {
    height: 40px;
}

.header-support span {
    font-size: 12px;
    color: #777;
}

.header-support strong {
    font-size: 18px;
    color: #007bff;
}

/* ===== Hamburger ===== */
.hamburger {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: #007bff;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 992px) {

    .hamburger {
        display: block;
    }

    .main-nav {
        position: absolute;
        top: 90px;
        left: 0;
        width: 100%;
        background: #fff;
        display: none;
        border-top: 1px solid #eee;
    }

    .main-nav.open {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        padding: 20px;
        gap: 15px;
    }

    .header-support {
        display: none;
    }

    .top-right {
        display: none;
    }
}