/**
 * Unified Header Styles
 * Mobile-first design with user icon dropdown
 */

/* Import Mobile Optimizations */
@import url('mobile-optimizations.css');

/* ========================================
   Header Container
   ======================================== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    width: 100%;
    left: 0;
    right: 0;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.app-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-3) var(--spacing-4);
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

/* ========================================
   Header Left Section
   ======================================== */
.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}

/* ========================================
   Logo
   ======================================== */
.app-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    flex-shrink: 0;
}

.app-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
}

.logo-text {
    display: none;
}

/* Desktop Logo - Hidden on Mobile */
.desktop-logo {
    display: none;
}

/* ========================================
   Mobile Burger Menu
   ======================================== */
.mobile-burger {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
}

.mobile-burger span {
    display: block;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.mobile-burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

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

.mobile-burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   Desktop Navigation
   ======================================== */
.desktop-nav {
    display: none;
    align-items: center;
    gap: var(--spacing-2);
    flex: 1;
    justify-content: center;
    margin: 0 var(--spacing-6);
}

.desktop-nav .nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.desktop-nav .nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
}

.desktop-nav .nav-link.active {
    background: var(--primary-light);
    color: var(--primary);
}

.desktop-nav .nav-link i {
    font-size: 1.1rem;
}

/* ========================================
   User Menu
   ======================================== */
.app-user-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
}


/* User Dropdown Container */
.user-dropdown-container {
    position: relative;
}

.user-icon-btn {
    /* Luôn vuông — nếu không, border-radius:50% tạo elip (lệch vòng ngoài / trong) */
    width: 44px;
    height: 44px;
    min-width: 44px;
    min-height: 44px;
    box-sizing: border-box;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border: 2px solid var(--primary);
    border-radius: 50%;
    color: var(--primary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
    flex-shrink: 0;
    overflow: hidden;
}

.user-icon-btn:hover {
    background: var(--primary);
    color: white;
    transform: scale(1.05);
}

.user-avatar {
    /* Trùng khít vùng nút, ký tự căn giữa (tránh lệch do % + border) */
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-base);
    line-height: 1;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Dropdown Menu */
.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    width: max-content;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1000;
    overflow: hidden;
    box-sizing: border-box;
}

.user-dropdown-menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-4);
    box-sizing: border-box;
}

.user-name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin-bottom: var(--spacing-1);
}

.user-role {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    width: 100%;
    box-sizing: border-box;
    padding: var(--spacing-3) var(--spacing-4);
    text-decoration: none;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: var(--transition);
    text-align: left;
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
}

.dropdown-item.logout-item {
    color: var(--error);
}

.dropdown-item.logout-item:hover {
    background: var(--error-light);
}

.dropdown-item i {
    font-size: 1.1rem;
    flex-shrink: 0;
}

.dropdown-item span {
    flex: 1;
}

/* ========================================
   Mobile Navigation Overlay
   ======================================== */
.mobile-nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 99;
}

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

/* ========================================
   Mobile Navigation Drawer
   ======================================== */
.mobile-nav-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100%;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    z-index: 101;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-xl);
}

.mobile-nav-drawer.active {
    transform: translateX(0);
}

/* Mobile Nav Header */
.mobile-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-4);
    border-bottom: 1px solid var(--border-color);
}

.mobile-nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--primary);
}

.mobile-nav-logo-img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: contain;
}

.mobile-nav-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: none;
    border-radius: var(--radius);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.2rem;
}

/* Mobile Nav Links */
.mobile-nav-links {
    flex: 1;
    padding: var(--spacing-4);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
}

.mobile-nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3) var(--spacing-4);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.mobile-nav-link:hover {
    background: var(--bg-tertiary);
}

.mobile-nav-link.active {
    background: var(--primary-light);
    color: var(--primary);
}

.mobile-nav-link i {
    font-size: 1.2rem;
    width: 24px;
}

/* Mobile Nav User */
.mobile-nav-user {
    padding: var(--spacing-4);
    border-top: 1px solid var(--border-color);
}

.mobile-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-3);
}

.mobile-user-avatar {
    width: 48px;
    height: 48px;
    min-width: 48px;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: var(--font-size-lg);
    line-height: 1;
    box-sizing: border-box;
    padding: 0;
    flex-shrink: 0;
    overflow: hidden;
}

.mobile-user-avatar i {
    font-size: 1.8rem;
}

.mobile-user-details {
    flex: 1;
}

.mobile-user-name {
    font-weight: 600;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    margin-bottom: 2px;
}

.mobile-user-role {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.mobile-logout-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    width: 100%;
    padding: var(--spacing-3);
    background: var(--error-light);
    color: var(--error);
    border: 1px solid var(--error);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: var(--transition);
}

.mobile-logout-btn:hover {
    background: var(--error);
    color: white;
}

/* ========================================
   Mobile Optimizations (with Tabbar)
   ======================================== */

/* Hide mobile drawer and burger on mobile since we have tabbar */
@media (max-width: 768px) {

    /* Hide mobile navigation elements */
    .mobile-burger {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    .mobile-nav-drawer,
    .mobile-nav-overlay {
        display: none !important;
        visibility: hidden !important;
        pointer-events: none !important;
    }

    /* Optimize header for mobile with tabbar */
    .app-header {
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        width: 100vw !important;
        max-width: 100vw !important;
        min-width: 100vw !important;
        left: 0 !important;
        right: 0 !important;
        margin: 0 !important;
        margin-left: 0 !important;
        margin-right: 0 !important;
        padding: 0 !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
        box-sizing: border-box;
        transform: none !important;
    }

    .app-header-content {
        padding: var(--spacing-2) var(--spacing-3) !important;
        min-height: 56px;
        justify-content: space-between;
        max-width: 100% !important;
        width: 100% !important;
        margin: 0 !important;
        padding-left: var(--spacing-3) !important;
        padding-right: var(--spacing-3) !important;
        box-sizing: border-box;
    }

    /* Show logo on mobile but compact */
    .header-left {
        flex: 0 0 auto;
    }

    .desktop-logo {
        display: flex !important;
        align-items: center;
    }

    .logo-text {
        display: none;
        /* Hide text on mobile, show icon only */
    }

    .desktop-logo .app-logo-img {
        width: 32px;
        height: 32px;
    }

    /* Hide desktop nav on mobile */
    .desktop-nav {
        display: none !important;
    }

    /* Make user menu more compact on mobile */
    .app-user-menu {
        flex: 0 0 auto;
    }

    .user-icon-btn {
        width: 40px;
        height: 40px;
        min-width: 40px;
        min-height: 40px;
        font-size: 1.1rem;
    }

    .user-avatar {
        width: 100%;
        height: 100%;
        font-size: 0.9rem;
    }

    /* Ensure header doesn't take too much space */
    .app-header {
        height: auto;
        min-height: 56px;
    }

    /* Dropdown alignment on mobile - prevent overflow */
    .user-dropdown-menu {
        right: 0;
        left: auto;
        min-width: 180px;
        max-width: calc(100vw - var(--spacing-6));
    }
}

/* ========================================
   Tablet & Desktop Breakpoints
   ======================================== */

/* Tablet (768px and up) */
@media (min-width: 768px) {
    .app-header-content {
        padding: var(--spacing-4) var(--spacing-6);
    }

    .logo-text {
        display: inline;
    }

    .desktop-logo {
        display: flex !important;
    }

    .mobile-burger {
        display: none !important;
    }

    .desktop-nav {
        display: flex !important;
    }

    .mobile-nav-drawer,
    .mobile-nav-overlay {
        display: none !important;
    }
}

/* Desktop (1024px and up) */
@media (min-width: 1024px) {
    .desktop-nav {
        gap: var(--spacing-4);
        margin: 0 var(--spacing-8);
    }

    .desktop-nav .nav-link {
        padding: var(--spacing-3) var(--spacing-5);
        font-size: var(--font-size-base);
    }
}

/* Large Desktop (1440px and up) */
@media (min-width: 1440px) {
    .app-header-content {
        padding: var(--spacing-4) var(--spacing-8);
    }
}


/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    .mobile-burger span,
    .mobile-nav-drawer,
    .mobile-nav-overlay,
    .user-dropdown-menu {
        transition: none;
    }
}

/* Focus styles */
.mobile-burger:focus,
.theme-toggle-btn:focus,
.user-icon-btn:focus,
.mobile-nav-close:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ========================================
   Mobile Tabbar Navigation
   ======================================== */
.tabbar-box {
    display: none;
}

@media (max-width: 768px) {
    .tabbar-box {
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1200;
        display: block !important;
        padding: 0 10px calc(8px + env(safe-area-inset-bottom));
        pointer-events: none;
    }

    .tabbar-nav {
        pointer-events: auto;
        height: 82px;
        background: #ffffff;
        border-radius: 22px;
        box-shadow: 0 10px 30px rgba(30, 41, 59, 0.14);
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        align-items: center;
        gap: 2px;
        max-width: 460px;
        margin: 0 auto;
        padding: 8px 10px 10px;
    }

    .tabbar-nav .tab-item {
        min-height: 56px;
        text-decoration: none;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        color: #111827;
    }

    .tabbar-nav .tab-icon-wrap {
        width: 28px;
        height: 28px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        border-radius: 999px;
        transition: transform 0.2s ease;
    }

    .tabbar-nav .tab-icon {
        font-size: 18px;
        color: #6b7280;
        transition: color 0.2s ease;
    }

    .tabbar-nav .tab-title {
        font-size: 11px;
        line-height: 1.15;
        width: 100%;
        text-align: center;
        color: #6b7280;
        transition: color 0.2s ease, font-weight 0.2s ease;
    }

    .tabbar-nav .tab-item.active .tab-icon {
        color: #5b3df5;
    }

    .tabbar-nav .tab-item.active .tab-title {
        color: #5b3df5;
        font-weight: 600;
    }

    .tabbar-nav .tab-item.active .tab-icon-wrap {
        transform: translateY(-1px);
    }

    .tabbar-nav .tab-item-center {
        position: relative;
        transform: translateY(-16px);
        gap: 6px;
    }

    .tabbar-nav .tab-center-btn {
        width: 46px;
        height: 46px;
        border-radius: 999px;
        background: linear-gradient(180deg, #5b3df5 0%, #492fe3 100%);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 10px 20px rgba(91, 61, 245, 0.38);
    }

    .tabbar-nav .tab-center-icon {
        font-size: 19px;
        color: #ffffff;
    }

    .tabbar-nav .tab-item-center .tab-title {
        color: #5b3df5;
        font-weight: 600;
        max-width: 100%;
    }

    .tabbar-nav .tab-item-center:active .tab-center-btn {
        transform: scale(0.98);
    }

    body {
        padding-bottom: calc(106px + env(safe-area-inset-bottom)) !important;
    }
}

@media (max-width: 420px) {
    .tabbar-box {
        padding-left: 8px;
        padding-right: 8px;
    }

    .tabbar-nav {
        height: 78px;
        border-radius: 20px;
        padding: 7px 8px 9px;
    }

    .tabbar-nav .tab-item {
        min-height: 52px;
    }

    .tabbar-nav .tab-icon {
        font-size: 17px;
    }

    .tabbar-nav .tab-title {
        font-size: 10px;
    }

    .tabbar-nav .tab-item-center {
        transform: translateY(-14px);
    }

    .tabbar-nav .tab-center-btn {
        width: 44px;
        height: 44px;
    }
}

@media (min-width: 769px) {
    .tabbar-box {
        display: none !important;
    }
}