/* ========================================
   ANNOUNCE BAR
======================================== */
.announce-bar {
    background: linear-gradient(90deg, #B8924A 0%, #C9A96E 50%, #B8924A 100%);
    height: 36px;
    overflow: hidden;
    display: flex;
    align-items: center;
    position: relative;
}

.announce-bar__marquee {
    display: flex;
    align-items: center;
    white-space: nowrap;
    animation: mqt-marquee 40s linear infinite;
    will-change: transform;
}

.announce-bar__marquee:hover {
    animation-play-state: paused;
}

.announce-bar__item {
    display: inline-flex;
    align-items: center;
    padding: 0 28px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.02em;
}

.announce-bar__sep {
    color: rgba(255,255,255,0.45);
    font-size: 0.55rem;
    flex-shrink: 0;
}

@keyframes mqt-marquee {
    from { transform: translateX(0); }
    to   { transform: translateX(-50%); }
}

@media (max-width: 640px) {
    .announce-bar { height: 30px; }
    .announce-bar__item { font-size: 0.73rem; padding: 0 20px; }
}

/* ========================================
   TOPBAR
======================================== */
.topbar {
    background: var(--color-primary);
    color: rgba(255,255,255,0.8);
    font-size: 0.8rem;
    height: 36px;
    display: flex;
    align-items: center;
}

.topbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.topbar__left, .topbar__right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.topbar__item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0.8);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.topbar__item:hover { color: var(--color-secondary); }

.topbar__socials {
    display: flex;
    align-items: center;
    gap: 10px;
}

.topbar__socials a {
    color: rgba(255,255,255,0.7);
    font-size: 0.8rem;
    transition: var(--transition-fast);
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.topbar__socials a:hover {
    color: var(--color-secondary);
    background: rgba(255,255,255,0.1);
}

/* ========================================
   HEADER
======================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--color-white);
    box-shadow: 0 1px 0 var(--color-border);
    transition: box-shadow 0.3s ease;
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.header__inner {
    display: flex;
    align-items: center;
    gap: 32px;
    height: var(--header-height);
}

/* LOGO */
.header__logo { flex-shrink: 0; }

.header__logo a { display: flex; align-items: center; }

.logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-text__main {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.logo-text__sub {
    font-size: 0.68rem;
    font-weight: 500;
    color: var(--color-secondary);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.logo-text--white .logo-text__main { color: var(--color-white); }
.logo-text--white .logo-text__sub  { color: rgba(255,255,255,0.7); }

/* NAV */
.header__nav { flex: 1; }

.nav-list {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-item { position: relative; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 8px 14px;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active,
.current-menu-item > .nav-link {
    color: var(--color-secondary);
    background: var(--color-secondary-light);
}

/* Dropdown */
.nav-item:hover > .sub-menu,
.nav-item:focus-within > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 220px;
    background: 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(-10px);
    transition: var(--transition);
    padding: 8px 0;
    z-index: 100;
}

.sub-menu .nav-link {
    padding: 10px 16px;
    border-radius: 0;
    width: 100%;
}

.sub-menu .nav-link:hover {
    background: var(--color-bg);
}

/* HEADER ACTIONS */
.header__actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.header__search-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    color: var(--color-text);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.header__search-btn:hover {
    background: var(--color-bg);
    border-color: var(--color-secondary);
    color: var(--color-secondary);
}

.header__hotline {
    font-size: 0.85rem;
    padding: 10px 20px;
}

.header__hotline span { font-weight: 600; }

.header__menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 32px;
    padding: 4px;
}

.header__menu-toggle span {
    display: block;
    height: 2px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.header__menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.header__menu-toggle.active span:nth-child(2) {
    opacity: 0;
}
.header__menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* SEARCH BAR */
.header__search-bar {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    padding: 16px 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.header__search-bar.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.header__search-bar form {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 600px;
    margin: 0 auto;
}

.header__search-bar input {
    flex: 1;
    height: 44px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0 16px;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-fast);
}

.header__search-bar input:focus {
    border-color: var(--color-secondary);
}

.header__search-bar button[type="submit"],
.header__search-bar #searchClose {
    height: 44px;
    padding: 0 20px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}

.header__search-bar button[type="submit"] {
    background: var(--color-secondary);
    color: var(--color-white);
}

.header__search-bar #searchClose {
    background: var(--color-bg);
    color: var(--color-text-light);
}

/* ========================================
   MOBILE MENU
======================================== */
.mobile-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: -320px;
    width: 300px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1200;
    display: flex;
    flex-direction: column;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.mobile-menu.active {
    left: 0;
}

.mobile-menu__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-border);
}

.mobile-menu__close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    font-size: 0.9rem;
}

.mobile-menu__body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 0;
}

.mobile-nav-list { padding: 0 16px; }

.mobile-nav-list .nav-link,
.mobile-nav-list li > a {
    display: block;
    padding: 12px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
}

.mobile-nav-list li > a:hover {
    background: var(--color-bg);
    color: var(--color-secondary);
}

.mobile-menu__footer {
    padding: 16px 20px;
    border-top: 1px solid var(--color-border);
}

/* ========================================
   STICKY CONTACT
======================================== */
.sticky-contact {
    position: fixed;
    right: 20px;
    bottom: 30px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 800;
}

.sticky-contact__btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    cursor: pointer;
    justify-content: center;
}

.sticky-contact__btn span {
    font-size: 0.55rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.sticky-contact__btn--phone {
    background: var(--color-secondary);
    color: var(--color-white);
    animation: pulse 2s infinite;
}

.sticky-contact__btn--zalo {
    background: #0068FF;
    color: var(--color-white);
}

.sticky-contact__btn--zalo img {
    width: 24px;
    height: 24px;
}

.sticky-contact__btn--top {
    background: var(--color-primary);
    color: var(--color-white);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.sticky-contact__btn--top.visible {
    opacity: 1;
    transform: translateY(0);
}

.sticky-contact__btn:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: var(--shadow-lg);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(201,169,110,0.4); }
    50%       { box-shadow: 0 0 0 12px rgba(201,169,110,0); }
}

/* ========================================
   MODALS
======================================== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 1300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}

.modal__container {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(0.9);
    transition: transform var(--transition);
}

.modal.active .modal__container {
    transform: scale(1);
}

.modal__close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    background: var(--color-white);
    transition: var(--transition-fast);
}

.modal__close:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.modal__body { padding: 32px; }

.modal__loading {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    font-size: 2rem;
    color: var(--color-secondary);
}

/* Quick View inside modal */
.qv-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.qv-main-image img {
    width: 100%;
    border-radius: var(--radius-md);
    object-fit: cover;
    aspect-ratio: 1;
}

.qv-thumbs {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.qv-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.qv-thumb.active,
.qv-thumb:hover {
    border-color: var(--color-secondary);
}

.qv-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qv-title {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.qv-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin: 16px 0;
    line-height: 1.7;
}

.qv-features {
    margin: 16px 0;
}

.qv-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
    font-size: 0.88rem;
    border-bottom: 1px solid var(--color-border-light);
}

.qv-actions {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    flex-wrap: wrap;
}

/* ========================================
   RESPONSIVE HEADER
======================================== */
@media (max-width: 1024px) {
    .header__nav { display: none; }
    .header__menu-toggle { display: flex; }
    .header__hotline span { display: none; }
    .header__hotline { padding: 10px 16px; }
    .topbar__hours { display: none; }
}

@media (max-width: 640px) {
    .topbar__left { display: none; }
    .topbar__right { margin-left: auto; }
    .header__hotline { display: none; }
    .sticky-contact { right: 12px; bottom: 16px; }
    .qv-content { grid-template-columns: 1fr; }
    .modal__body { padding: 20px; }
}

/* ========================================
   HEADER ENHANCEMENT
======================================== */
.site-header {
    border-bottom: 1px solid transparent;
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, transparent, var(--color-secondary), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.site-header.scrolled::after {
    opacity: 0.6;
}

.nav-link {
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 14px;
    right: 14px;
    height: 2px;
    background: var(--color-secondary);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.2s ease;
}

.nav-link:hover::after,
.current-menu-item > .nav-link::after {
    transform: scaleX(1);
}

.nav-link:hover,
.current-menu-item > .nav-link {
    background: transparent;
    color: var(--color-secondary);
}

/* Topbar gradient */
.topbar {
    background: linear-gradient(135deg, #1A1A1A 0%, #2A2A2A 100%);
    border-bottom: 1px solid rgba(201,169,110,0.2);
}

/* Logo text enhancement */
.logo-text__main {
    background: linear-gradient(135deg, var(--color-primary), #3A3A3A);
    -webkit-background-clip: text;
    background-clip: text;
}