/* ===========================
   HEADER
   =========================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: #fff;
    border-bottom: 1px solid #F1F5F9;
    transition: box-shadow .3s;
}

.site-header.scrolled {
    box-shadow: 0 2px 16px rgba(0,0,0,.07);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    height: 70px;
    display: flex;
    align-items: center;
    gap: 36px;
}

/* Logo */
.logo {
    font-size: 20px;
    font-weight: 800;
    color: #0F172A;
    text-decoration: none;
    letter-spacing: -0.5px;
    flex-shrink: 0;
}

/* Main nav */
.main-nav {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
}

.main-nav > a,
.nav-dropdown > a {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    text-decoration: none;
    padding: 7px 14px;
    border-radius: 8px;
    transition: color .2s, background .2s;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.main-nav > a:hover,
.nav-dropdown:hover > a {
    color: #2563EB;
    background: #EFF6FF;
}

/* Dropdown chevron */
.chev {
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid #94A3B8;
    transition: transform .2s;
}

.nav-dropdown:hover .chev { transform: rotate(180deg); border-top-color: #2563EB; }

/* Dropdown */
.nav-dropdown { position: relative; }

.drop-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,.1);
    border: 1px solid #F1F5F9;
    padding: 8px;
    min-width: 200px;
    z-index: 100;
}

.nav-dropdown:hover .drop-menu { display: block; }

.drop-menu a {
    display: block;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    text-decoration: none;
    border-radius: 8px;
    transition: background .15s, color .15s;
}

.drop-menu a:hover {
    background: #EFF6FF;
    color: #2563EB;
}

/* Header actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
    margin-left: auto;
}

.help-link {
    font-size: 14px;
    font-weight: 500;
    color: #374151;
    text-decoration: none;
    transition: color .2s;
    white-space: nowrap;
}

.help-link:hover { color: #2563EB; }

.btn-book {
    background: #2563EB;
    color: #fff;
    padding: 9px 22px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background .2s, transform .15s;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
}

.btn-book:hover {
    background: #1D4FD8;
    transform: translateY(-1px);
    color: #fff;
}

/* Mobile toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    margin-left: auto;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: #374151;
    border-radius: 2px;
    transition: all .3s;
}

/* Responsive */
@media (max-width: 960px) {
    .header-inner { padding: 0 24px; gap: 0; }
    .nav-toggle { display: flex; }
    .main-nav, .header-actions { display: none; }

    .main-nav.open {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        position: absolute;
        top: 70px;
        left: 0; right: 0;
        background: #fff;
        border-bottom: 1px solid #F1F5F9;
        padding: 12px 24px 20px;
        box-shadow: 0 8px 24px rgba(0,0,0,.07);
        gap: 2px;
        z-index: 998;
    }
}