/* ==========================================================================
   CƠ KHÍ ĐẠI THẮNG - CLIENT HEADER & NAVBAR STYLESHEET (header.css)
   Chuẩn hóa giao diện 2026: Font chữ Plus Jakarta Sans & Xanh Dương Sáng Hiện Đại
   (Tương đồng 100% với nhận diện thương hiệu Logo Đại Thắng Machine)
   ========================================================================== */

:root {
    /* Bảng màu Xanh Dương Sáng Hiện Đại (Electric / Vibrant Industrial Blue) */
    --dt-blue-primary: #0284C7;         /* Xanh dương sáng chủ đạo theo màu Logo */
    --dt-blue-bright: #0099E5;          /* Xanh dương tươi sáng kỹ thuật cao */
    --dt-blue-dark: #0369A1;            /* Xanh dương sâu cho Topbar và tương phản */
    --dt-blue-topbar: #075985;          /* Xanh biển sâu sang trọng cho thanh trên cùng */
    --dt-blue-gradient: linear-gradient(135deg, #0284C7 0%, #0099E5 100%);
    --dt-blue-nav-gradient: linear-gradient(90deg, #0284C7 0%, #0099E5 50%, #0284C7 100%);
    --dt-blue-light: #F0F9FF;           /* Nền xanh băng nhạt thanh thoát */
    --dt-blue-border: #BAE6FD;          /* Viền xanh nhạt */
    --dt-blue-glow: rgba(0, 153, 229, 0.18);

    /* Màu điểm nhấn bổ trợ (Theo chấm đỏ & chi tiết của Logo) */
    --dt-accent-orange: #FF6500;        /* Cam nhiệt huyết công nghiệp cho CTA / Badge */
    --dt-accent-red: #E60000;           /* Đỏ năng lượng điểm nhấn */
    --dt-accent-hover: #E05600;

    /* Neutrals & Typography */
    --dt-text-dark: #0F172A;
    --dt-text-body: #334155;
    --dt-text-muted: #64748B;
    --dt-border: #E2E8F0;
    --dt-white: #FFFFFF;

    /* Font chuẩn 2026 */
    --dt-font: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Shadows & Transitions */
    --dt-shadow-sm: 0 2px 10px rgba(2, 132, 199, 0.06);
    --dt-shadow-md: 0 4px 20px rgba(2, 132, 199, 0.12);
    --dt-shadow-lg: 0 12px 36px rgba(15, 23, 42, 0.12);
    --dt-transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   0. CHUẨN HÓA FONT CHỮ TOÀN TRANG (2026 Ultra-Clear Typography)
   ========================================================================== */
body {
    font-family: var(--dt-font) !important;
    color: var(--dt-text-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6,
.dt-nav-link, .btn, input, button, select, textarea {
    font-family: var(--dt-font) !important;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   1. TOPBAR (Thanh thông tin trên cùng: Xanh biển sâu & Chỉ cam)
   ========================================================================== */
#header_top.dt-topbar {
    background: var(--dt-blue-topbar);
    color: #E0F2FE;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.5;
    padding: 7px 0;
    border-bottom: 2px solid var(--dt-blue-bright);
    position: relative;
    z-index: 1040;
}

.dt-topbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.dt-topbar-left, .dt-topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.dt-topbar-item {
    display: flex;
    align-items: center;
    gap: 7px;
    color: #F0F9FF;
    font-size: 13px;
}

.dt-topbar-item i, .dt-topbar-item svg {
    color: #7DD3FC;
    font-size: 13px;
}

.dt-topbar-item a {
    color: #FFFFFF;
    text-decoration: none;
    font-weight: 600;
    transition: var(--dt-transition);
}

.dt-topbar-item a:hover {
    color: #BAE6FD;
    text-decoration: underline;
}

.dt-topbar-badge {
    background: rgba(255, 255, 255, 0.18);
    color: #FFFFFF;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

/* ==========================================================================
   2. MAIN HEADER (Logo, Thanh tìm kiếm viên thuốc & Hotline Báo giá)
   ========================================================================== */
#header_middle.dt-main-header {
    background: var(--dt-white);
    padding: 14px 0;
    border-bottom: 1px solid var(--dt-border);
    box-shadow: var(--dt-shadow-sm);
    position: relative;
    z-index: 1035;
}

.dt-middle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

/* Brand Logo */
.dt-brand-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    flex-shrink: 0;
}

.dt-brand-logo img {
    max-height: 56px;
    width: auto;
    object-fit: contain;
    transition: var(--dt-transition);
}

.dt-brand-logo:hover img {
    transform: scale(1.02);
}

/* Modern Search Box */
.dt-search-wrapper {
    flex: 1;
    max-width: 520px;
    position: relative;
}

.dt-search-box {
    display: flex;
    align-items: center;
    background: #F8FAFC;
    border: 2px solid var(--dt-blue-border);
    border-radius: 50px;
    padding: 3px 5px 3px 18px;
    transition: var(--dt-transition);
    width: 100%;
    margin: 0;
}

.dt-search-box:focus-within, .dt-search-box:hover {
    border-color: var(--dt-blue-bright);
    background: var(--dt-white);
    box-shadow: 0 0 0 4px var(--dt-blue-glow);
}

.dt-search-input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--dt-text-dark);
    padding: 7px 8px;
    width: 100%;
}

.dt-search-input::placeholder {
    color: var(--dt-text-muted);
    font-size: 13.5px;
    font-weight: 400;
}

.dt-search-button {
    background: var(--dt-blue-gradient);
    color: var(--dt-white);
    border: none;
    border-radius: 50px;
    padding: 8px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 700;
    transition: var(--dt-transition);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 153, 229, 0.25);
}

.dt-search-button:hover {
    background: linear-gradient(135deg, #0369A1 0%, #0284C7 100%);
    box-shadow: 0 4px 14px rgba(0, 153, 229, 0.4);
    transform: translateY(-1px);
}

.dt-search-button svg {
    width: 14px;
    height: 14px;
    fill: currentColor;
}

/* Autocomplete Suggestions */
.suggestion-container {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--dt-white);
    border: 1px solid var(--dt-blue-border);
    border-radius: 12px;
    box-shadow: var(--dt-shadow-lg);
    z-index: 1050;
    max-height: 420px;
    overflow-y: auto;
    display: none;
}

.suggestion-item {
    padding: 10px 16px;
    border-bottom: 1px solid #F1F5F9;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--dt-transition);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover, .suggestion-item.active {
    background: var(--dt-blue-light);
}

.suggestion-item img {
    width: 46px;
    height: 46px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--dt-border);
    flex-shrink: 0;
}

.suggestion-item-info {
    flex: 1;
}

.suggestion-item-name {
    font-weight: 600;
    font-size: 13.5px;
    color: var(--dt-text-dark);
    margin-bottom: 2px;
}

.suggestion-item-price {
    color: var(--dt-accent-orange);
    font-weight: 700;
    font-size: 13px;
}

/* Hotline & CTA */
.dt-header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.dt-hotline-card {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none !important;
    color: inherit;
    transition: var(--dt-transition);
}

.dt-hotline-icon-wrap {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--dt-blue-light);
    color: var(--dt-blue-primary);
    border: 1.5px solid var(--dt-blue-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    position: relative;
    flex-shrink: 0;
}

.dt-hotline-icon-wrap::after {
    content: '';
    position: absolute;
    inset: -3px;
    border-radius: 50%;
    border: 1.5px solid var(--dt-blue-bright);
    opacity: 0.5;
    animation: dt-pulse-blue 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes dt-pulse-blue {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.15); opacity: 0; }
}

.dt-hotline-meta {
    display: flex;
    flex-direction: column;
}

.dt-hotline-label {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--dt-blue-dark);
    letter-spacing: 0.4px;
}

.dt-hotline-number {
    font-size: 17px;
    font-weight: 800;
    color: var(--dt-blue-primary);
    line-height: 1.2;
    font-family: var(--dt-font);
}

.dt-hotline-card:hover .dt-hotline-number {
    color: var(--dt-blue-bright);
}

.dt-btn-quote {
    background: linear-gradient(135deg, var(--dt-accent-orange) 0%, #FF8A00 100%);
    color: var(--dt-white) !important;
    padding: 10px 22px;
    border-radius: 50px;
    font-size: 12.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none !important;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 14px rgba(255, 101, 0, 0.35);
    transition: var(--dt-transition);
    white-space: nowrap;
}

.dt-btn-quote:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 101, 0, 0.45);
}

/* ==========================================================================
   3. NAVBAR CHÍNH (Xanh Dương Sáng Hiện Đại - Gradient Logo)
   ========================================================================== */
#header_main.dt-nav-section {
    background: var(--dt-blue-nav-gradient);
    position: relative;
    z-index: 1030;
    box-shadow: 0 4px 16px rgba(0, 119, 194, 0.18);
    border-bottom: 2px solid rgba(255, 255, 255, 0.15);
}

.dt-navbar-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.dt-nav-list {
    display: flex;
    align-items: center;
    justify-content: center;
    list-style: none;
    margin: 0 auto;
    padding: 0;
    flex-wrap: wrap;
}

.dt-nav-item {
    position: relative;
}

.dt-nav-link {
    display: block;
    padding: 14px 22px;
    font-size: 13.5px;
    font-weight: 700;
    color: #FFFFFF !important;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    text-decoration: none !important;
    position: relative;
    transition: var(--dt-transition);
}

.dt-nav-link:hover {
    color: #FFFFFF !important;
    background: rgba(255, 255, 255, 0.16);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Active Item Indicator */
.dt-nav-item.active .dt-nav-link,
.dt-nav-link.active_tag {
    color: #FFFFFF !important;
    background: rgba(255, 255, 255, 0.22);
}

.dt-nav-item.active .dt-nav-link::after,
.dt-nav-link.active_tag::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 12px;
    right: 12px;
    height: 3px;
    background: #FFFFFF;
    border-radius: 2px 2px 0 0;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.8);
}

/* Dropdown Menu (Sản phẩm) */
.dt-nav-item.has-dropdown {
    position: relative;
}

.dt-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--dt-white);
    min-width: 270px;
    padding: 8px 0;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--dt-shadow-lg);
    border: 1px solid var(--dt-border);
    border-top: 3px solid var(--dt-blue-bright);
    list-style: none;
    margin: 0;
    z-index: 1060;
    animation: dt-dropdown-in 0.22s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes dt-dropdown-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 992px) {
    .dt-nav-item.has-dropdown:hover .dt-dropdown-menu {
        display: block;
    }
}

.dt-dropdown-item a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 20px;
    color: var(--dt-text-dark) !important;
    font-size: 13.5px;
    font-weight: 600;
    text-decoration: none !important;
    border-left: 3px solid transparent;
    transition: var(--dt-transition);
}

.dt-dropdown-item a:hover {
    background: var(--dt-blue-light);
    color: var(--dt-blue-primary) !important;
    border-left-color: var(--dt-blue-bright);
    padding-left: 24px;
}

/* Sticky Navbar Fixed State */
.dt-nav-section.cd-secondary-nav.is-fixed {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 9999 !important;
    box-shadow: 0 8px 24px rgba(0, 119, 194, 0.25) !important;
    animation: dt-slide-down 0.3s ease-out;
}

@keyframes dt-slide-down {
    from { transform: translateY(-100%); }
    to { transform: translateY(0); }
}

/* ==========================================================================
   4. MOBILE HEADER & NAVIGATION
   ========================================================================== */
.dt-mobile-header {
    display: none;
    background: var(--dt-white);
    padding: 10px 15px;
    border-bottom: 2px solid var(--dt-blue-bright);
    align-items: center;
    justify-content: space-between;
}

.dt-mobile-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.dt-mobile-brand img {
    height: 40px;
    width: auto;
}

.dt-mobile-brand-title {
    font-size: 15px;
    font-weight: 800;
    color: var(--dt-blue-primary);
    text-transform: uppercase;
}

.dt-mobile-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.dt-mobile-call-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--dt-blue-gradient);
    color: var(--dt-white) !important;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    text-decoration: none !important;
    box-shadow: 0 2px 8px rgba(0, 153, 229, 0.35);
}

.dt-mobile-toggle {
    width: 40px;
    height: 38px;
    border-radius: 6px;
    background: var(--dt-blue-primary);
    border: none;
    color: var(--dt-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    padding: 0;
}

.dt-mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--dt-white);
    border-radius: 2px;
    transition: var(--dt-transition);
}

@media (max-width: 991px) {
    #header_top.dt-topbar {
        display: none !important;
    }
    #header_middle.dt-main-header {
        display: none !important;
    }
    .dt-mobile-header {
        display: flex !important;
    }
    
    #bs-example-navbar-collapse-1 {
        background: var(--dt-blue-primary) !important;
        border-top: 1px solid rgba(255, 255, 255, 0.15) !important;
        padding: 10px 15px !important;
    }

    .dt-nav-list {
        flex-direction: column;
        align-items: stretch;
        width: 100%;
    }

    .dt-nav-link {
        padding: 12px 14px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        font-size: 14px;
    }

    .dt-dropdown-menu {
        position: static;
        background: rgba(0, 0, 0, 0.15);
        box-shadow: none;
        border: none;
        border-radius: 6px;
        margin: 5px 0 10px 15px;
        display: none;
    }

    .dt-nav-item.open-mobile .dt-dropdown-menu {
        display: block;
    }

    .dt-dropdown-item a {
        color: #F0F9FF !important;
        padding: 8px 12px;
        font-size: 13px;
        border-left: none;
    }

    .dt-dropdown-item a:hover {
        color: #FFFFFF !important;
        background: rgba(255, 255, 255, 0.1);
    }

    .mobile-dropdown-toggle {
        position: absolute;
        top: 0;
        right: 0;
        height: 44px;
        width: 48px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #FFFFFF;
        cursor: pointer;
    }

    .dt-mobile-search-bar {
        padding: 10px 0;
    }
}

/* ==========================================================================
   5. FLEXSLIDER ALIGNMENT
   ========================================================================== */
.flexslider {
    margin-top: 0 !important;
}

/* ==========================================================================
   6. COMMON PAGE HERO BANNER & BREADCRUMB (2026 DESIGN SYSTEM)
   ========================================================================== */
.page-hero {
    position: relative !important;
    background: linear-gradient(135deg, #075985 0%, #0284C7 60%, #0099E5 100%) !important;
    padding: 50px 0 42px 0 !important;
    color: #FFFFFF !important;
    overflow: hidden !important;
    display: block !important;
}

.page-hero::before {
    content: '' !important;
    position: absolute !important;
    inset: 0 !important;
    background: radial-gradient(circle at 85% 20%, rgba(255, 255, 255, 0.15) 0%, transparent 60%) !important;
    pointer-events: none !important;
}

.page-breadcrumb {
    display: flex !important;
    align-items: center !important;
    flex-wrap: wrap !important;
    gap: 8px !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    color: #BAE6FD !important;
    margin: 0 0 14px 0 !important;
    list-style: none !important;
    padding: 0 !important;
}

.page-breadcrumb li {
    list-style: none !important;
    display: inline-flex !important;
    align-items: center !important;
    margin: 0 !important;
    padding: 0 !important;
}

.page-breadcrumb a {
    color: #E0F2FE !important;
    text-decoration: none !important;
    transition: color 0.2s ease !important;
}

.page-breadcrumb a:hover {
    color: #FFFFFF !important;
    text-decoration: underline !important;
}

.page-breadcrumb .separator {
    color: #7DD3FC !important;
    font-size: 11px !important;
    display: inline-flex !important;
    align-items: center !important;
}

.page-breadcrumb .current {
    color: #FFFFFF !important;
    font-weight: 700 !important;
}

.page-hero-title {
    font-size: 32px !important;
    font-weight: 800 !important;
    line-height: 1.25 !important;
    margin: 0 0 10px 0 !important;
    color: #FFFFFF !important;
    letter-spacing: -0.01em !important;
}

.page-hero-subtitle {
    font-size: 15.5px !important;
    line-height: 1.6 !important;
    color: #E0F2FE !important;
    max-width: 760px !important;
    margin: 0 !important;
}

@media (max-width: 991px) {
    .page-hero-title {
        font-size: 26px !important;
    }
}

@media (max-width: 575px) {
    .page-hero {
        padding: 35px 0 30px 0 !important;
    }
    .page-hero-title {
        font-size: 22px !important;
    }
}