/* ========================================
   Sticky Navbar Styles
   ======================================== */

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-base);
}

.site-header.scrolled {
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* Logo */
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.navbar-logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: var(--fw-extrabold);
    font-size: 1.25rem;
}

.navbar-brand-text {
    font-family: var(--font-heading);
    font-weight: var(--fw-extrabold);
    font-size: 1.2rem;
    color: var(--color-navy-dark);
}

/* Nav menu */
.nav-menu-wrapper {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-menu>li {
    position: relative;
}

.nav-menu>li>a {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 0.9rem;
    color: var(--color-body-text);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-menu>li>a:hover,
.nav-menu>li.current-menu-item>a,
.nav-menu>li.current_page_item>a {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
}

.nav-menu>li:hover .dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    padding: 8px;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-fast);
    list-style: none;
    z-index: 100;
}

.nav-menu>li:hover>.nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown li a {
    display: block;
    padding: 10px 16px;
    font-size: 0.88rem;
    font-family: var(--font-heading);
    font-weight: var(--fw-medium);
    color: var(--color-body-text);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.nav-dropdown li a:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary);
}

/* Upload button */
.nav-upload-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 22px;
    background-color: var(--color-primary);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-weight: var(--fw-bold);
    font-size: 0.88rem;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.nav-upload-btn:hover {
    background-color: var(--color-primary-hover);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(232, 49, 26, 0.3);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    padding: 6px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    height: 2.5px;
    background-color: var(--color-navy-dark);
    border-radius: 2px;
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* Body offset for fixed header */
body {
    padding-top: 72px;
}