/* pdh-header.css: Chỉ chứa CSS cho header, menu, nav, dropdown */
:root {
    --pdh-brand: #0f6a63;
    --pdh-bg: #f8fafc;
    --pdh-text: #0f172a;
    --pdh-muted: #64748b;
}

.pdh-header {
    background: #fff;
    border-bottom: 1px solid rgba(15,23,42,0.06);
    box-shadow: 0 2px 8px rgba(15,106,99,0.04);
    padding: 0;
}
.pdh-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 64px;
}
.pdh-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 22px;
    color: var(--pdh-brand);
}
.pdh-logo-img {
    height: 38px;
    width: auto;
    margin-right: 6px;
}

/* Menu chính */
.pdh-top-nav {
    display: flex;
    align-items: center;
    gap: 32px;
}
.pdh-top-nav ul.pdh-menu-root {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.pdh-top-nav ul.pdh-menu-root > li {
    position: relative;
}
.pdh-top-nav a {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-decoration: none;
    color: #294d61;
    text-transform: uppercase;
    padding: 14px 22px;
    border-radius: 12px;
    position: relative;
    transition: all 0.18s cubic-bezier(.4,0,.2,1);
    display: inline-block;
    min-width: 48px;
    min-height: 44px;
    line-height: 1.2;
}
.pdh-top-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0px;
    width: 0%;
    height: 2px;
    background: #1abc9c; /* xanh ngọc nhẹ */
    transition: width 0.3s ease;
}
.pdh-top-nav a:hover,
.pdh-top-nav a:focus {
    color: #fff;
    background: var(--pdh-brand-soft);
    box-shadow: 0 2px 8px rgba(25,160,137,0.10);
    outline: none;
}/* hover */
.pdh-top-nav a:hover {
    color: #19a089;
}

.pdh-top-nav a.active {
    color: #1abc9c;
}

.pdh-top-nav a.active::after {
    width: 100%;
}
.pdh-top-nav .pdh-menu-arrow {
    margin-left: 6px;
    font-size: 13px;
    vertical-align: middle;
    cursor: pointer;
}
/* Submenu */
.pdh-top-nav .has-submenu .pdh-submenu {
    display: none;
    position: absolute;
    left: 0;
    top: 100%;
    min-width: 180px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px 0 rgba(15,106,99,0.12);
    padding: 8px 0;
    z-index: 100;
}
.pdh-top-nav .has-submenu.open .pdh-submenu {
    display: block;
}
.pdh-top-nav .pdh-submenu a {
    color: #294d61;
    background: none;
    padding: 12px 22px;
    border-radius: 8px;
    font-size: 16px;
    min-width: 140px;
    min-height: 40px;
    display: block;
}
.pdh-top-nav .pdh-submenu a:hover {
    background: var(--pdh-brand-soft);
    color: #fff;
}