/* variables */
:root {
    --bg-main: #f8fafc;
    --bg-surface: #ffffff;
    --border-color: #e2e8f0;
    
    --primary: #2563eb;
    --secondary: #7c3aed;
    --accent: #059669;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-glow: 0 4px 20px rgba(37, 99, 235, 0.12);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    
    --transition: all 0.2s ease;
}

/* Base resets */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

input, button, select, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    outline: none;
}

/* Layout containers */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.main-wrapper {
    padding: 40px 0;
    min-height: calc(100vh - 400px);
}

.layout-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    align-items: start;
}

@media (max-width: 991px) {
    .layout-grid {
        grid-template-columns: 1fr;
    }
}

/* Header Component */
.header-top {
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.header-logo-img {
    height: 36px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    display: block;
    mix-blend-mode: multiply;
    image-rendering: -webkit-optimize-contrast;
}

.brand-text {
    font-weight: 800;
    font-size: 26px;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    line-height: 1.3;
    padding: 4px 0;
}

.footer-logo-img {
    height: 36px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    display: block;
    mix-blend-mode: multiply;
    image-rendering: -webkit-optimize-contrast;
}

.brand-text-footer {
    font-weight: 800;
    font-size: 26px;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    line-height: 1.3;
    padding: 4px 0;
}

.search-bar {
    flex: 1;
    max-width: 500px;
    position: relative;
}

.search-input {
    width: 100%;
    background-color: #f1f5f9;
    border: 1px solid var(--border-color);
    padding: 10px 45px 10px 18px;
    border-radius: 50px;
    color: var(--text-primary);
    transition: var(--transition);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: var(--gradient-glow);
    background-color: #ffffff;
}

.search-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    cursor: pointer;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-member {
    display: flex;
    align-items: center;
    gap: 15px;
}

.member-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.member-btn:hover, .member-btn.active {
    color: var(--text-primary);
}

.btn-gradient {
    background: var(--gradient-primary);
    color: #fff;
    padding: 10px 20px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.2);
}

.btn-gradient:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(13, 110, 253, 0.3);
}

.btn-outline {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 9px 19px;
    border-radius: 50px;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    cursor: pointer;
}

.btn-outline:hover {
    border-color: var(--primary);
    background-color: rgba(13, 110, 253, 0.1);
}

.header-cart {
    position: relative;
    font-size: 20px;
    color: var(--text-secondary);
}

.header-cart:hover {
    color: var(--text-primary);
}

.cart-count {
    position: absolute;
    top: -8px;
    right: -10px;
    background-color: #ef4444;
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
}

/* Secondary header navigation */
.header-nav {
    border-bottom: 1px solid var(--border-color);
    background-color: #ffffff;
}

.nav-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px 20px;
    padding: 12px 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.nav-item {
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    white-space: nowrap;
    display: inline-block;
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
}

/* Left Sidebar Menu */
.sidebar-wrapper {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.menu-vertical {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 15px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
}

.menu-link:hover {
    color: var(--text-primary);
    background-color: #f1f5f9;
}

.menu-link.active {
    color: #fff;
    background: var(--gradient-primary);
    box-shadow: var(--gradient-glow);
}

/* Content Area */
.content-area {
    min-width: 0;
}

/* Footer Components */
.footer-wrapper {
    border-top: 1px solid var(--border-color);
    background-color: #f1f5f9;
    padding: 60px 0 30px 0;
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }
}

.footer-col-title {
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-about-logo {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.footer-branch-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-branch-item {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

.footer-branch-item:last-child {
    border: none;
    padding-bottom: 0;
}

.branch-name {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 13px;
    text-transform: uppercase;
}

.branch-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.branch-info-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
}

.branch-info-item i {
    margin-top: 3px;
    color: var(--primary);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a:hover {
    color: var(--text-primary);
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
}

.payment-gateways {
    display: flex;
    align-items: center;
    gap: 15px;
    opacity: 0.6;
}

.payment-gateways img {
    height: 20px;
}

/* Glassmorphism Cards */
.card-glass {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 25px;
    transition: var(--transition);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03), 0 2px 4px -2px rgba(0, 0, 0, 0.03);
}

.card-glass:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.05);
}

/* Slider Banner Styles (Global) */
.slider-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 40px;
    height: 320px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--border-color);
}

.slider-track {
    display: flex;
    height: 100%;
    transition: transform 0.5s ease-in-out;
}

.slide-item {
    min-width: 100%;
    height: 100%;
    position: relative;
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0) 100%);
    padding: 30px 40px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.slide-title {
    font-size: 24px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 8px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.slide-btn {
    align-self: flex-start;
    margin-top: 15px;
}

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

.mega-menu {
    position: absolute;
    top: 100%;
    left: 0;
    width: 650px;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease-in-out;
    z-index: 1000;
    padding: 20px;
}

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

.mega-menu-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mega-menu-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: 350px;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
    padding-right: 15px;
}

.mega-menu-item {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    display: block;
    font-weight: 500;
    text-align: left;
}

.mega-menu-item:hover, .mega-menu-item.active {
    background-color: #f1f5f9;
    color: var(--primary);
    padding-left: 18px;
}

.mega-menu-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8fafc;
    border-radius: var(--radius-sm);
    padding: 15px;
    height: 100%;
    min-height: 250px;
    border: 1px solid var(--border-color);
}

.mega-menu-preview img {
    max-width: 100%;
    max-height: 220px;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    transition: opacity 0.15s ease-in-out;
}

/* Authentication Modal (Login / Register) Styles */
.auth-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.auth-modal-card {
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 450px;
    padding: 30px;
    position: relative;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    transform: scale(0.9);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-modal-overlay.active .auth-modal-card {
    transform: scale(1);
}

.auth-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    color: var(--text-secondary);
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.auth-modal-close:hover {
    color: var(--text-primary);
}

.auth-modal-tabs {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 25px;
}

.auth-tab {
    flex: 1;
    text-align: center;
    padding: 12px 0;
    font-weight: 700;
    font-size: 15px;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.auth-tab:hover {
    color: var(--text-primary);
}

.auth-tab.active {
    color: var(--primary);
    border-bottom: 2px solid var(--primary);
    margin-bottom: -2px;
}

.auth-form-content {
    display: none;
}

.auth-form-content.active {
    display: block;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 15px;
}

.auth-field label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.auth-field input {
    width: 100%;
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-primary);
    transition: var(--transition);
}

.auth-field input:focus {
    border-color: var(--primary);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.08);
}

.auth-alert {
    padding: 12px 15px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 20px;
    font-weight: 500;
    line-height: 1.5;
}

.auth-alert.error {
    background-color: #fee2e2;
    color: #ef4444;
    border: 1px solid #fecaca;
}

.auth-alert.success {
    background-color: #d1fae5;
    color: #059669;
    border: 1px solid #a7f3d0;
}

/* Global Toast Notification Styles */
.toast-notification {
    position: fixed;
    top: 30px;
    right: 30px;
    z-index: 100000;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 15px 20px;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: 15px;
    min-width: 320px;
    max-width: 450px;
    transition: all 0.3s ease;
    transform: translateY(0);
    opacity: 1;
}

.toast-notification.success {
    border-left: 4px solid #059669;
}

.toast-notification.success i {
    color: #059669;
}

.toast-notification.error {
    border-left: 4px solid #ef4444;
}

.toast-notification.error i {
    color: #ef4444;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
}

.toast-close {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.toast-close:hover {
    color: var(--text-primary);
}

/* User Dropdown and Logout Styles in Header */
.user-dropdown {
    display: flex;
    align-items: center;
}

.user-dropdown-name {
    cursor: pointer;
    text-decoration: none;
}

.user-dropdown-name i {
    color: var(--primary);
}

.logout-form {
    display: inline;
    margin-left: 10px;
}

.logout-btn {
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
    font-size: inherit;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 5px;
}

.logout-btn:hover {
    color: var(--text-primary);
}

.hotline-box {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 600;
}

.hotline-box i {
    color: var(--primary);
}

.auth-submit-btn {
    width: 100%;
}

/* Responsive Slider Banner */
@media (max-width: 991px) {
    .slider-container {
        height: 240px;
        margin-bottom: 25px;
    }
}
@media (max-width: 576px) {
    .slider-container {
        height: 150px;
        margin-bottom: 20px;
    }
    .slide-content {
        padding: 15px 20px;
    }
    .slide-title {
        font-size: 16px;
    }
}

/* Navigation utilities for display modes */
.mobile-only-nav {
    display: none !important;
}
.desktop-only-nav {
    display: block;
}

/* Mobile Menu Toggle Button (Hidden on Desktop) */
.mobile-menu-toggle {
    display: none;
}
.mobile-menu-header {
    display: none;
}
.mobile-menu-user-section {
    display: none;
}
.mobile-submenu {
    display: none;
}

/* Mobile responsive navigation overrides */
@media (max-width: 991px) {
    .mobile-only-nav {
        display: flex !important;
    }
    .desktop-only-nav {
        display: none !important;
    }

    /* Hide cluttered top items in the main header on mobile */
    .header-inner .nav-member,
    .header-inner .hotline-box {
        display: none !important;
    }

    /* Show hamburger menu toggle button on mobile header */
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: #f1f5f9;
        border: 1px solid var(--border-color);
        border-radius: 8px;
        width: 42px;
        height: 42px;
        font-size: 18px;
        color: var(--text-primary);
        cursor: pointer;
        transition: var(--transition);
        margin-left: 8px;
    }
    
    .mobile-menu-toggle:hover {
        background-color: var(--border-color);
    }

    /* Transform navigation container into a slide-out mobile drawer */
    .header-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 300px;
        height: 100vh;
        background: #ffffff;
        z-index: 1001; /* Above overlay */
        display: flex;
        flex-direction: column;
        overflow-y: auto;
        box-shadow: -4px 0 25px rgba(15, 23, 42, 0.15);
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        padding: 0 !important;
        border-left: 1px solid var(--border-color);
        border-bottom: none;
    }
    
    .header-nav.mobile-open {
        right: 0;
    }

    /* Drawer Header */
    .mobile-menu-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        background: #f8fafc;
    }

    .mobile-menu-logo {
        font-weight: 700;
        font-size: 16px;
        color: var(--primary);
        display: flex;
        align-items: center;
        gap: 6px;
    }

    .mobile-menu-close {
        background: none;
        border: none;
        font-size: 20px;
        color: var(--text-secondary);
        cursor: pointer;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        transition: var(--transition);
    }

    .mobile-menu-close:hover {
        background: #fee2e2;
        color: #ef4444;
    }

    /* Drawer User Auth & Hotline area */
    .mobile-menu-user-section {
        display: block;
        padding: 16px 20px;
        border-bottom: 1px solid var(--border-color);
        background: #ffffff;
    }

    .mobile-user-info {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        padding: 4px 0 10px;
    }

    /* Drawer menu list overrides */
    .header-nav .container {
        padding: 0;
        width: 100%;
        max-width: unset;
    }

    .nav-list {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        padding: 10px 0;
    }

    .nav-list li {
        width: 100%;
    }

    .nav-item {
        display: flex;
        align-items: center;
        padding: 14px 20px;
        border-bottom: 1px solid #f8fafc;
        width: 100%;
        color: var(--text-secondary);
        font-size: 13.5px;
        transition: var(--transition);
    }

    .nav-item:hover, .nav-item.active {
        background-color: #f1f5f9;
        color: var(--primary);
        padding-left: 26px;
    }

    /* Accordion mobile submenu for Categories */
    .mobile-submenu {
        display: block; /* Override global display: none */
        list-style: none;
        padding: 0;
        margin: 0;
        background-color: #f8fafc;
        border-bottom: 1px solid #f1f5f9;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
    }

    .mobile-submenu.open {
        max-height: 500px; /* arbitrary height to slide-down */
        transition: max-height 0.35s ease-in;
        border-top: 1px solid #e2e8f0;
    }

    .mobile-submenu-item {
        display: flex;
        align-items: center;
        padding: 10px 30px;
        color: var(--text-secondary);
        font-size: 13px;
        text-decoration: none;
        transition: var(--transition);
    }

    .mobile-submenu-item:hover {
        color: var(--primary);
        background-color: #e0f2fe;
        padding-left: 36px;
    }

    .submenu-chevron {
        transition: transform 0.25s ease;
    }

    /* Disable desktop mega dropdown */
    .nav-dropdown-wrapper .mega-menu {
        display: none !important;
    }
}

/* Backdrop Overlay */
.mobile-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.45);
    z-index: 1000; /* Behind drawer, above standard headers */
    display: none;
    backdrop-filter: blur(3px);
}

.mobile-menu-overlay.active {
    display: block;
}