/* ==========================
   Global Styles
========================== */
body {
    margin: 0;
    font-family: system-ui, sans-serif;
    background: #f7f7f7;
}
a {
    text-decoration: none;
}
ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* ==========================
   Header Styles
========================== */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
    flex-wrap: wrap;
}

/* Logo */
.header .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}
.header .logo img {
    height: 50px;
    max-height: 60px;
}
.header .logo h2 {
    margin: 0;
}

/* Menu Items */
.header .menu-items {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-left: -10px;
}
.header .menu-items li {
    position: relative;
}
.header .menu-items li.has-sub > a::after {
    content: " ▼";
    font-size: 0.7em;
    margin-left: 5px;
}
.header .menu-items a {
    font-weight: bold;
    padding: 5px 8px;
    display: block;
    transition: color 0.3s, background 0.3s;
}
.header .menu-items a:hover {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

/* Submenu */
.header .submenu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    padding: 0;
    border: none;
    min-width: 180px;
    max-width: 250px;
    max-height: 400px;
    overflow-y: auto;
    z-index: 10;
}
.header .submenu li {
    margin: 0;
}
.header .submenu li a {
    padding: 8px 15px;
    display: block;
    white-space: nowrap;
}
.header .submenu li a:hover {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}
.header .menu-items li:hover > .submenu {
    display: block;
}

/* Responsive */
.header .menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 28px;
    padding: 5px 10px;
}
@media (max-width: 768px) {
    .header .menu-toggle {
        display: block;
    }
    .header .menu-items {
        display: none;
        flex-direction: column;
        width: 100%;
        padding: 15px;
        gap: 10px;
        margin-left: 0;
    }
    .header .menu-items li.has-sub > .submenu {
        position: static;
        display: none;
        padding-left: 15px;
        max-height: none;
        overflow: visible;
    }
    .header .menu-items li.has-sub > a::after {
        content: " ▼";
        float: right;
    }
    .header .menu-items li.has-sub.active > .submenu {
        display: flex;
        flex-direction: column;
    }
    .header .menu-items li.has-sub > .submenu li a {
    }
    .header .menu-items a:hover {
        background: rgba(0, 0, 0, 0.1);
    }
    .header .menu-items.active {
        display: flex;
    }
}