/* Header Component Styles - Prefix: vsk-hdr- */
/* Tránh xung đột với các trang khác */

/* Component Reset - Chỉ áp dụng cho header */
#vsk-hdr-main,
#vsk-hdr-main * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body padding khi có header component */
/* Font Import cho Header Component */
@font-face {
    font-family: 'NVN Yellost';
    src: url('../font/NVN Yellost-Regular VH.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* Header Container */
#vsk-hdr-main {
    background-color: white !important;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 1000 !important;
    font-family: 'Be Vietnam Pro', sans-serif !important;
}

.vsk-hdr-container {
    max-width: 1400px !important;
    margin: 0 auto !important;
    width: 100% !important;
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    min-height: 80px !important;
    box-sizing: border-box !important;
}

/* Navigation Left */
.vsk-hdr-nav-left {
    display: flex;
    align-items: center;
    gap: 60px;
}

/* Logo */
.vsk-hdr-logo {
    display: flex;
    align-items: center;
}

.vsk-hdr-logo-image {
    height: 70px;
    width: auto;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.vsk-hdr-logo-image:hover {
    transform: scale(1.05);
}

/* Navigation */
.vsk-hdr-nav {
    display: flex;
    align-items: center;
}

.vsk-hdr-nav-menu {
    display: flex !important;
    list-style: none !important;
    gap: 35px !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* Nav Links với selector mạnh hơn */
#vsk-hdr-main .vsk-hdr-nav-link,
.vsk-hdr-nav-link {
    text-decoration: none !important;
    color: #333 !important;
    font-weight: 500 !important;
    padding: 10px 20px !important;
    border-radius: 8px !important;
    transition: all 0.3s ease !important;
    font-size: 17px !important;
    display: inline-block !important;
    box-sizing: border-box !important;
}

#vsk-hdr-main .vsk-hdr-nav-link.vsk-hdr-active,
.vsk-hdr-nav-link.vsk-hdr-active {
    background-color: rgba(252, 194, 74, 0.4) !important;
    color: #333 !important;
}

#vsk-hdr-main .vsk-hdr-nav-link:hover,
.vsk-hdr-nav-link:hover {
    background-color: rgba(252, 194, 74, 0.4) !important;
    color: #333 !important;
}

/* Auth Buttons */
.vsk-hdr-auth-buttons {
    display: flex;
    gap: 20px;
}

.vsk-hdr-btn {
    padding: 14px 28px !important;
    border: none !important;
    border-radius: 8px !important;
    font-size: 17px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    text-decoration: none !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    min-height: 50px !important;
    min-width: 130px !important;
    touch-action: manipulation !important;
    -webkit-tap-highlight-color: transparent !important;
    position: relative !important;
    overflow: hidden !important;
    box-sizing: border-box !important;
}

.vsk-hdr-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s;
}

.vsk-hdr-btn:hover::before {
    left: 100%;
}

.vsk-hdr-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.vsk-hdr-btn-primary {
    background-color: #671716 !important;
    color: white !important;
    border: none !important;
}

.vsk-hdr-btn-primary:hover {
    background-color: #8b1e1f !important;
    transform: translateY(-2px) !important;
}

.vsk-hdr-btn-outline {
    background-color: #ffffff !important;
    color: #333 !important;
    border: none !important;
}

.vsk-hdr-btn-outline:hover {
    background-color: #e9ecef !important;
    color: #333 !important;
    transform: translateY(-2px) !important;
}

/* Mobile Menu Toggle */
.vsk-hdr-mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    border: none;
    background: none;
}

.vsk-hdr-mobile-toggle span {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

.vsk-hdr-mobile-toggle.vsk-hdr-active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

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

.vsk-hdr-mobile-toggle.vsk-hdr-active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile Auth Buttons - Hidden on Desktop */
.vsk-hdr-mobile-auth {
    display: none;
}

/* Focus States for Accessibility */
.vsk-hdr-btn:focus,
.vsk-hdr-nav-link:focus,
.vsk-hdr-mobile-toggle:focus {
    outline: 2px solid #d62829;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(214, 40, 41, 0.2);
}

/* Responsive Styles */
@media (max-width: 1200px) {
    .vsk-hdr-container {
        max-width: 1200px;
        padding: 0 30px;
    }
    
    .vsk-hdr-nav-left {
        gap: 45px;
    }
    
    .vsk-hdr-nav-menu {
        gap: 28px !important;
    }
    
    .vsk-hdr-nav-link {
        font-size: 16px !important;
        padding: 10px 18px !important;
    }
    
    .vsk-hdr-btn {
        font-size: 16px !important;
        padding: 13px 26px !important;
        min-width: 125px !important;
        min-height: 48px !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    
    .vsk-hdr-logo-image {
        height: 65px;
    }
}

@media (max-width: 1024px) {
    .vsk-hdr-container {
        padding: 0 25px;
    }
    
    .vsk-hdr-nav-left {
        gap: 35px;
    }
    
    .vsk-hdr-nav-menu {
        gap: 22px !important;
    }
    
    .vsk-hdr-nav-link {
        font-size: 15px !important;
        padding: 9px 16px !important;
    }
    
    .vsk-hdr-btn {
        font-size: 15px !important;
        padding: 12px 22px !important;
        min-width: 115px !important;
    }
    
    .vsk-hdr-logo-image {
        height: 60px;
    }
}

@media (max-width: 768px) {
    .vsk-hdr-container {
        flex-wrap: wrap;
        padding: 0 20px;
        min-height: 70px;
    }
    
    .vsk-hdr-nav-left {
        gap: 30px;
    }
    
    .vsk-hdr-logo-image {
        height: 55px;
    }
    
    /* Show Mobile Toggle */
    .vsk-hdr-mobile-toggle {
        display: flex;
    }
    
    /* Hide Desktop Auth Buttons */
    .vsk-hdr-auth-buttons {
        display: none;
    }
    
    /* Mobile Navigation Menu */
    .vsk-hdr-nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: white;
        flex-direction: column;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        transition: left 0.3s ease;
        padding: 25px 0;
        z-index: 1001;
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .vsk-hdr-nav-menu.vsk-hdr-mobile-active {
        left: 0;
    }
    
    .vsk-hdr-nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .vsk-hdr-nav-link {
        display: block !important;
        padding: 16px 25px !important;
        width: 100% !important;
        font-size: 16px !important;
        margin: 2px 0 !important;
    }
    
    /* Show Mobile Auth Buttons in Menu */
    .vsk-hdr-mobile-auth {
        display: flex;
        flex-direction: column;
        padding: 25px 20px;
        gap: 18px;
        border-top: 1px solid #e0e0e0;
        margin-top: 25px;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn {
        width: 100% !important;
        padding: 14px 20px !important;
        text-align: center !important;
        border-radius: 8px !important;
        font-weight: 600 !important;
        font-size: 16px !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        min-height: 50px !important;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn-outline {
        border: 2px solid #ddd !important;
        color: #333 !important;
        background: #ffffff !important;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn-outline:hover {
        background: #f8f9fa !important;
        border-color: #999 !important;
        color: #333 !important;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn-primary {
        background: #671716 !important;
        color: white !important;
        border: 2px solid #671716 !important;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn-primary:hover {
        background: #8b1e1f !important;
        border-color: #8b1e1f !important;
    }
}

@media (max-width: 480px) {
    .vsk-hdr-container {
        padding: 0 15px;
        min-height: 65px;
    }
    
    .vsk-hdr-nav-left {
        gap: 20px;
    }
    
    .vsk-hdr-logo-image {
        height: 48px;
    }
    
    .vsk-hdr-nav-menu {
        top: 65px;
        padding: 20px 0;
        max-height: calc(100vh - 65px);
    }
    
    .vsk-hdr-nav-link {
        font-size: 15px !important;
        padding: 14px 20px !important;
        margin: 1px 0 !important;
    }
    
    .vsk-hdr-mobile-auth {
        padding: 20px 15px;
        gap: 15px;
        margin-top: 20px;
    }
    
    .vsk-hdr-mobile-auth .vsk-hdr-btn {
        padding: 13px 18px !important;
        font-size: 15px !important;
        min-height: 48px !important;
        font-weight: 600 !important;
        border-radius: 6px !important;
    }
    
    .vsk-hdr-mobile-toggle {
        padding: 8px;
    }
    
    .vsk-hdr-mobile-toggle span {
        width: 20px;
        height: 2px;
        margin: 2px 0;
    }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
    .vsk-hdr-btn:hover {
        transform: none;
        box-shadow: none;
    }
    
    .vsk-hdr-btn::before {
        display: none;
    }
    
    .vsk-hdr-logo-image:hover {
        transform: none;
    }
    
    .vsk-hdr-nav-link:hover {
        background-color: rgba(252, 194, 74, 0.6) !important;
    }
    
    /* Larger touch targets for mobile */
    .vsk-hdr-nav-link {
        min-height: 44px !important;
    }
    
    .vsk-hdr-btn {
        min-height: 44px !important;
    }
    
    .vsk-hdr-mobile-toggle {
        min-width: 44px;
        min-height: 44px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .vsk-hdr-nav-link {
        border: 1px solid transparent !important;
    }
    
    .vsk-hdr-nav-link:focus,
    .vsk-hdr-nav-link.vsk-hdr-active {
        border-color: currentColor !important;
    }
    
    .vsk-hdr-btn {
        border: 2px solid currentColor !important;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .vsk-hdr-btn,
    .vsk-hdr-logo-image,
    .vsk-hdr-nav-link,
    .vsk-hdr-mobile-toggle span,
    .vsk-hdr-nav-menu {
        transition: none !important;
        animation: none !important;
    }
}

/* Print styles */
@media print {
    #vsk-hdr-main {
        box-shadow: none !important;
        background: white !important;
        color: black !important;
    }
    
    .vsk-hdr-mobile-toggle,
    .vsk-hdr-auth-buttons,
    .vsk-hdr-mobile-auth {
        display: none !important;
    }
}