/* ==========================================================================
   HEADER.CSS — Top Bar, Main Header, Navigation, Mobile Menu
   ========================================================================== */

/* ---- Top Bar ---- */
.header-top-bar {
    background: var(--color-secondary);
    color: rgba(255,255,255,0.85);
    font-size: var(--text-xs);
    padding: 6px 0;
    position: relative;
    z-index: 100;
}
.header-top-bar__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}
.header-top-bar__message {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: var(--font-weight-medium);
}
.header-top-bar__icon { font-size: 13px; }
.header-top-bar__links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}
.header-top-bar__link {
    display: flex;
    align-items: center;
    gap: 5px;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    transition: color var(--transition-fast);
    font-weight: var(--font-weight-medium);
}
.header-top-bar__link:hover { color: #fff; }

/* ---- Main Header ---- */
.header-main {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.header-main--sticky {
    box-shadow: var(--shadow-md);
}
.header-main--hidden {
    transform: translateY(-100%);
}
.header-main__inner {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    padding: 12px 0;
    height: var(--header-height);
}

/* Logo */
.header-main__logo a,
.header-main__logo-text {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}
.header-main__logo img { height: 44px; width: auto; }
.header-main__logo-icon { font-size: 28px; line-height: 1; }
.header-main__logo-name {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}
.header-main__logo-name strong {
    font-size: 17px;
    font-weight: var(--font-weight-extrabold);
    color: var(--color-primary);
    letter-spacing: -0.01em;
}
.header-main__logo-name small {
    font-size: 10px;
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* Search Bar */
.header-main__search {
    flex: 1;
    max-width: 520px;
    position: relative;
}
.uandi-search-form { position: relative; }
.search-field-wrapper {
    display: flex;
    align-items: center;
    background: var(--color-surface);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    overflow: hidden;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.search-field-wrapper:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0,137,123,0.12);
    background: var(--color-white);
}
.search-field-icon {
    padding: 0 0 0 var(--space-4);
    font-size: 16px;
    color: var(--color-text-muted);
    flex-shrink: 0;
}
.uandi-search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 10px var(--space-3);
    font-family: var(--font-base);
    font-size: var(--text-sm);
    color: var(--color-text);
    outline: none;
    min-width: 0;
}
.uandi-search-input::placeholder { color: var(--color-text-muted); }
.search-submit-btn {
    background: var(--color-primary);
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-base);
    cursor: pointer;
    transition: background var(--transition-fast);
    white-space: nowrap;
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}
.search-submit-btn:hover { background: var(--color-primary-dark); }

/* Search Results Dropdown */
.uandi-search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    max-height: 400px;
    overflow-y: auto;
    display: none;
}
.uandi-search-results.active { display: block; }
.search-result-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    text-decoration: none;
    color: var(--color-text);
    transition: background var(--transition-fast);
}
.search-result-item:hover,
.search-result-item--active { background: var(--color-surface); }
.search-result-item__image { width: 44px; height: 44px; border-radius: var(--radius-sm); overflow: hidden; flex-shrink: 0; background: var(--color-surface); }
.search-result-item__image img { width: 100%; height: 100%; object-fit: cover; }
.search-result-item__name { font-size: var(--text-sm); font-weight: var(--font-weight-semibold); }
.search-result-item__brand { font-size: 11px; color: var(--color-text-muted); }
.search-result-item__price { display: flex; align-items: center; gap: var(--space-2); margin-top: 2px; }
.search-result-item__current { font-size: var(--text-sm); font-weight: var(--font-weight-bold); color: var(--color-primary); }
.search-result-item__original { font-size: 11px; color: var(--color-text-muted); text-decoration: line-through; }
.search-result-item__discount { font-size: 11px; color: var(--color-accent); font-weight: var(--font-weight-bold); }
.search-loading, .search-no-results, .search-error { padding: var(--space-4); text-align: center; color: var(--color-text-muted); font-size: var(--text-sm); }
.search-view-all { display: block; padding: var(--space-3) var(--space-4); text-align: center; font-size: var(--text-sm); font-weight: var(--font-weight-semibold); color: var(--color-primary); border-top: 1px solid var(--color-border); }
.search-view-all:hover { background: var(--color-primary-light); }

/* Header Actions */
.header-main__actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
    margin-left: auto;
}
.header-main__action-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-base);
    color: var(--color-text);
    text-decoration: none;
    transition: background var(--transition-fast), color var(--transition-fast);
    position: relative;
}
.header-main__action-link:hover {
    background: var(--color-primary-light);
    color: var(--color-primary);
}
.header-main__action-icon { font-size: 22px; line-height: 1; }
.header-main__action-label { font-size: 10px; font-weight: var(--font-weight-semibold); color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.header-main__cart { position: relative; }
.header-main__cart-count {
    position: absolute;
    top: 2px; right: 6px;
    background: var(--color-accent);
    color: #fff;
    font-size: 10px;
    font-weight: var(--font-weight-bold);
    width: 18px; height: 18px;
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
    line-height: 1;
    border: 2px solid var(--color-white);
}

/* Hamburger */
.header-main__hamburger {
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    display: flex;
    flex-direction: column;
    gap: 5px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}
.header-main__hamburger:hover { background: var(--color-surface); }
.hamburger-line {
    display: block;
    width: 22px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* Primary Navigation */
.header-main__nav { border-top: 1px solid var(--color-border); }
.primary-menu {
    display: flex;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0; padding: 0;
}
.primary-menu > li { position: relative; }
.primary-menu > li > a {
    display: block;
    padding: 10px 14px;
    font-size: var(--text-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
    white-space: nowrap;
}
.primary-menu > li > a:hover,
.primary-menu > li.current-menu-item > a,
.primary-menu > li.current-menu-ancestor > a {
    color: var(--color-primary);
    background: var(--color-primary-light);
}
/* Dropdown */
.primary-menu .sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 200px;
    padding: var(--space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-base);
    z-index: 100;
    list-style: none;
}
.primary-menu li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.primary-menu .sub-menu li a {
    display: block;
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}
.primary-menu .sub-menu li a:hover { color: var(--color-primary); background: var(--color-primary-light); }

/* ---- Mobile Menu ---- */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1998;
    backdrop-filter: blur(2px);
}
.mobile-menu-overlay.active { display: block; }
.mobile-menu {
    position: fixed;
    top: 0; left: 0;
    height: 100%;
    width: 300px;
    max-width: 85vw;
    background: var(--color-white);
    z-index: 1999;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.mobile-menu.active { transform: translateX(0); }
.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-primary);
    color: #fff;
}
.mobile-menu__title { font-weight: var(--font-weight-bold); font-size: var(--text-lg); }
.mobile-menu__close {
    background: rgba(255,255,255,0.2);
    border: none;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    width: 32px; height: 32px;
    border-radius: var(--radius-full);
    display: flex; align-items: center; justify-content: center;
}
.mobile-menu__nav { flex: 1; overflow-y: auto; padding: var(--space-4); }
.mobile-menu__list { list-style: none; margin: 0; padding: 0; }
.mobile-menu__list li a {
    display: block;
    padding: 12px var(--space-4);
    font-size: var(--text-base);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-base);
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}
.mobile-menu__list li a:hover { background: var(--color-primary-light); color: var(--color-primary); }
.mobile-menu__footer {
    padding: var(--space-4) var(--space-6);
    border-top: 1px solid var(--color-border);
}
.mobile-menu__contact {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: 12px 16px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-base);
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    font-size: var(--text-sm);
    justify-content: center;
}

/* Mobile search bar */
.header-main__search--mobile {
    background: var(--color-surface);
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
}
.header-main__search--mobile .search-field-wrapper { border-radius: var(--radius-full); }