:root {
    --primary: #00f2ff;
    --secondary: #ff00e6;
    --accent: #ffcc00;
    --dark: #080818;
    --darker: #050510;
    --bg-gradient: linear-gradient(135deg, #080818 0%, #101040 100%);
    --neon-box-shadow: 0 0 20px rgba(0, 242, 255, 0.5);
    --header-bg: rgba(8, 8, 24, 0.95);

}

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

body {
    margin-top: 250px;
    font-family: 'Rajdhani', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    color: white;
    overflow-x: hidden;
}

/* Cyberpunk Grid Background */
.cyber-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 50px 50px;
    background-image:
            linear-gradient(rgba(0, 242, 255, 0.03) 1px, transparent 1px),
            linear-gradient(90deg, rgba(0, 242, 255, 0.03) 1px, transparent 1px);
    z-index: -1;
    perspective: 1000px;
    transform-style: preserve-3d;
    animation: gridPulse 8s infinite linear;
}

@keyframes gridPulse {
    0% { opacity: 0.3; }
    50% { opacity: 0.6; }
    100% { opacity: 0.3; }
}

/* Cyberpunk Glitch Effect */
.glitch {
    position: relative;
    color: white;
    font-size: 4rem;
    font-weight: 900;
    text-transform: uppercase;
    animation: glitch 5s infinite;
}

@keyframes glitch {
    0% { text-shadow: 0 0 0 rgba(255,255,255,0); }
    2% { text-shadow: -3px 0 0 rgba(255,0,230,0.7), 3px 0 0 rgba(0,242,255,0.7); }
    4% { text-shadow: 0 0 0 rgba(255,255,255,0); }
    25% { text-shadow: 0 0 0 rgba(255,255,255,0); }
    27% { text-shadow: -3px 0 0 rgba(255,0,230,0.7), 3px 0 0 rgba(0,242,255,0.7); }
    29% { text-shadow: 0 0 0 rgba(255,255,255,0); }
    100% { text-shadow: 0 0 0 rgba(255,255,255,0); }
}

#header-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: transform 0.4s ease;
}
#header-wrapper.hide-banner {
    transform: translateY(-125px); /* hoặc đúng chiều cao banner */
}

/* Cyberpunk Hologram Banner - Đã cập nhật */
.cyber-banner {
    width: 100%;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    border: none;
    position: relative;
}

.cyber-banner img.cyber-banner-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 120px; /* Bạn có thể điều chỉnh chiều cao tùy ý */
}

/* Main Header with Holographic Effect */
.cyber-header {
    position: relative;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--primary);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
}


.cyber-header.scrolled {
    background: rgba(5, 5, 20, 0.98);
    box-shadow: var(--neon-box-shadow);
}

/* Logo with Circuit Animation */
.cyber-logo {
    font-family: 'Audiowide', cursive;
    font-size: 32px;
    font-weight: 900;
    background: linear-gradient(45deg, var(--primary), var(--secondary), var(--accent));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientFlow 5s ease-in-out infinite;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    display: inline-flex;
    align-items: center;
}

.cyber-logo::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M10,10 L90,10 L90,90 L10,90 Z' stroke='%2300f2ff' stroke-width='1' fill='none' stroke-dasharray='5,5' /%3E%3C/svg%3E");
    background-size: cover;
    opacity: 0.3;
    animation: circuit 10s linear infinite;
}

@keyframes circuit {
    0% { transform: rotate(0deg) scale(1); opacity: 0.1; }
    50% { transform: rotate(180deg) scale(1.1); opacity: 0.3; }
    100% { transform: rotate(360deg) scale(1); opacity: 0.1; }
}

.cyber-logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 10px var(--primary));
}

@keyframes gradientFlow {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Categories Button */
.cyber-category-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: 6px;
    cursor: pointer;
    background: linear-gradient(45deg, rgba(0, 242, 255, 0.1), rgba(255, 0, 230, 0.1));
    border: 1px solid rgba(0, 242, 255, 0.3);
    transition: all 0.3s ease;
}

.cyber-category-btn i {
    font-size: 22px;
    color: var(--primary);
}

.cyber-category-btn:hover {
    background: linear-gradient(45deg, rgba(0, 242, 255, 0.2), rgba(255, 0, 230, 0.2));
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.3);
}

.category-text {
    font-weight: 600;
    font-size: 14px;
    font-family: 'Rajdhani', sans-serif;
}

/* Categories Dropdown Menu */
.cyber-categories-dropdown {
    position: absolute;
    top: 110%;
    left: 20px;
    width: auto;
    border-radius: 12px;
    z-index: 999;
    padding: 15px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

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

.cyber-categories-dropdown .categories-list {
    display: inline-flex; /* quan trọng để ô co theo nội dung */
    flex-direction: column;
    gap: 4px;
    border: 1px solid var(--primary);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.1);
    padding: 11px 13px; /* khoảng đệm trái/phải lớn hơn cho đẹp */
    background-color: rgba(13, 13, 43, 0.95); /* thêm nhẹ nền nếu cần */
    width: fit-content; /* KHÔNG ép chiều rộng */
    max-width: 100%; /* đảm bảo không vỡ layout trên màn nhỏ */
    overflow-x: auto; /* nếu chữ quá dài vẫn cuộn được */
}

.category-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 7px;
    border-radius: 6px;
    background-color: transparent;
    transition: all 0.2s ease;
    cursor: pointer;
    white-space: nowrap;        /* Không xuống dòng */
}

.category-item:hover {
    background: rgba(0, 242, 255, 0.06);
    border-left: 2px solid var(--primary);
    transform: translateX(3px);
}

.category-item i {
    font-size: 18px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.category-item span {
    font-weight: 500;
    font-size: 14px; /* giảm cỡ chữ */
}

/* Futuristic Search Bar */
.cyber-search {
    position: relative;
    max-width: 500px;
    margin: 0 auto;
}

.search-input {
    width: 100%;
    padding: 12px 50px 12px 20px;
    border: 1px solid var(--primary);
    border-radius: 6px;
    background: rgba(8, 8, 24, 0.7);
    color: white;
    font-size: 16px;
    transition: all 0.3s ease;
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 1px;
}

.search-input:focus {
    outline: none;
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.3);
    background: rgba(8, 8, 24, 0.9);
    border-color: var(--secondary);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-btn {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 4px;
    width: 40px;
    height: 35px;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 0 10px var(--primary);
}

/* Futuristic Header Actions */
.cyber-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.cyber-action {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: 6px;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    border: 1px solid transparent;
}

.cyber-action::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    opacity: 0;
    border-radius: 6px;
    transition: all 0.3s ease;
    z-index: -1;
}

.cyber-action:hover::before {
    opacity: 0.15;
}

.cyber-action:hover {
    border-color: rgba(0, 242, 255, 0.3);
    transform: translateY(-2px);
}

.action-icon {
    font-size: 20px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.action-text {
    font-weight: 500;
    font-size: 14px;
}

.cart-count,.order-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: linear-gradient(45deg, var(--secondary), var(--primary));
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 0 10px rgba(0, 242, 255, 0.5);
    animation: glowing 2s infinite;
    display: none;
}

@keyframes glowing {
    0% { box-shadow: 0 0 5px rgba(0, 242, 255, 0.5); }
    50% { box-shadow: 0 0 15px rgba(0, 242, 255, 0.8); }
    100% { box-shadow: 0 0 5px rgba(0, 242, 255, 0.5); }
}

/* Cyberpunk Navigation */
.cyber-nav {
    background: rgba(5, 5, 20, 0.9);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(0, 242, 255, 0.3);
    border-bottom: 1px solid rgba(255, 0, 230, 0.3);
}

.cyber-nav-item {
    position: relative;
    padding: 15px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
    margin: 0 5px;
    overflow: hidden;
}

.cyber-nav-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
    transition: all 0.3s ease;
    opacity: 0;
}

.cyber-nav-item:hover::before {
    opacity: 1;
}

.cyber-nav-item:hover {
    background: rgba(0, 242, 255, 0.05);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.cyber-nav-item i {
    margin-right: 10px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 18px;
}

.nav-text {
    font-weight: 600;
    font-size: 15px;
    font-family: 'Rajdhani', sans-serif;
    letter-spacing: 0.5px;
}

/* Geometric shape decorations */
.cyber-shape {
    position: absolute;
    border: 1px solid var(--primary);
    opacity: 0.2;
    z-index: -1;
}

.cyber-shape-1 {
    width: 100px;
    height: 100px;
    border-radius: 0;
    top: 20px;
    right: 10%;
    animation: rotate 20s linear infinite;
}

.cyber-shape-2 {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    top: 50px;
    left: 15%;
    animation: pulse 15s ease infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Holographic Noise Effect */
.holo-noise {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.02;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='matrix' values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 1 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    z-index: -1;
    pointer-events: none;
}

/* Animated hexagons in the header */
.hex-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: -1;
}

.hex {
    position: absolute;
    width: 20px;
    height: 20px;
    background: transparent;
    border: 1px solid var(--primary);
    clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
    animation: hexFloat 15s linear infinite;
    opacity: 0.1;
}

.hex:nth-child(1) { left: 10%; animation-delay: 0s; }
.hex:nth-child(2) { left: 20%; animation-delay: 2s; }
.hex:nth-child(3) { left: 30%; animation-delay: 4s; }
.hex:nth-child(4) { left: 40%; animation-delay: 6s; }
.hex:nth-child(5) { left: 50%; animation-delay: 8s; }
.hex:nth-child(6) { left: 60%; animation-delay: 10s; }
.hex:nth-child(7) { left: 70%; animation-delay: 12s; }
.hex:nth-child(8) { left: 80%; animation-delay: 14s; }

@keyframes hexFloat {
    0% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% { opacity: 0.1; }
    90% { opacity: 0.1; }
    100% {
        transform: translateY(-100px) rotate(360deg);
        opacity: 0;
    }
}

/* Cyberpunk Neon Buttons */
.cyber-button {
    position: relative;
    display: inline-block;
    padding: 0.5em 1.5em;
    border: 1px solid var(--primary);
    color: white;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    background: transparent;
    overflow: hidden;
    transition: 0.3s;
    cursor: pointer;
}

.cyber-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary);
    z-index: -1;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.cyber-button:hover {
    color: var(--darker);
    box-shadow: 0 0 15px var(--primary);
}

.cyber-button:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

/* Scanlines Effect */
.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
            to bottom,
            transparent 50%,
            rgba(0, 242, 255, 0.02) 51%
    );
    background-size: 100% 4px;
    z-index: 9999;
    pointer-events: none;
    opacity: 0.15;
}

/* Adjust Responsive Layouts */
/* >= 1200px (desktop lớn): không cần chỉnh */

/* ≤ 1199px (desktop vừa) */
@media (max-width: 1199.98px) {
    .cyber-header .row {
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }

    .cyber-header .row > div:nth-child(1),
    .cyber-header .row > div:nth-child(2),
    .cyber-header .row > div:nth-child(3) {
        display: flex;
        align-items: center;
        margin-bottom: 10px;
    }

    .cyber-header .row > div:nth-child(1) {
        flex: 0 0 auto;
    }

    .cyber-header .row > div:nth-child(2) {
        flex: 0 0 auto;
        margin-left: 75px;
    }

    .cyber-header .row > div:nth-child(3) {
        flex: 1 1 auto;
        justify-content: flex-end;
    }

    .cyber-search {
        width: 100%;
        max-width: 250px;
    }

    .cyber-header .row > div:nth-child(4) {
        width: 100%;
    }

    .cyber-actions {
        display: flex;
        justify-content: space-between;
        flex-wrap: nowrap;
        gap: 8px;
        text-align: center;
    }

    .cyber-action {
        flex: 1;
        padding: 8px 4px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .cyber-action .action-text {
        font-size: 12px;
        text-align: center;
    }

    .cyber-action .action-icon {
        font-size: 18px;
        margin-bottom: 4px;
    }
}

/* ≤ 992px (tablet landscape) */
@media (max-width: 992px) {
    /* Dòng 1: logo, danh mục, search cùng hàng */
    .cyber-header .row {
        flex-wrap: wrap;
        justify-content: space-between;
        align-items: center;
    }

    .cyber-header .row > div:nth-child(1),  /* Logo */
    .cyber-header .row > div:nth-child(2),  /* Danh mục */
    .cyber-header .row > div:nth-child(3) { /* Search */
        display: flex;
        align-items: center;
        margin-bottom: 10px;
    }

    .cyber-header .row > div:nth-child(1) {
        flex: 0 0 auto;
    }

    .cyber-header .row > div:nth-child(2) {
        flex: 0 0 auto;
        margin-left: 75px;  /* Đẩy danh mục ra khỏi logo */
    }

    .cyber-header .row > div:nth-child(3) {
        flex: 1 1 auto;
        justify-content: flex-end;
    }

    .cyber-search {
        width: 100%;
    }

    /* Dòng 2: các action nằm ngang đều nhau */
    .cyber-header .row > div:nth-child(4) {
        width: 100%;
    }

    .cyber-actions {
        display: flex;
        justify-content: space-between;
        flex-wrap: nowrap;
        gap: 8px;
        text-align: center;
    }

    .cyber-action {
        flex: 1;
        padding: 8px 4px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .cyber-action .action-text {
        font-size: 12px;
        text-align: center;
    }

    .cyber-action .action-icon {
        font-size: 18px;
        display: block;
        margin-bottom: 4px;
    }
}

/* ≤ 768px (tablet portrait) */
@media (max-width: 768px) {
    .cyber-header .row > div:nth-child(2) {
        margin-left: 35px;
    }

    .category-text {
        display: flex;
    }

    .cyber-category-btn {
        justify-content: center;
        padding: 8px;
    }

    .cyber-logo {
        font-size: 22px;
    }

    .cyber-search {
        max-width: 100%;
    }

    .cyber-action .action-text {
        font-size: 10px;
    }

    .cyber-action .action-icon {
        font-size: 16px;
    }

    .cyber-nav-item {
        padding: 10px 8px;
        margin: 0 2px;
    }

    .nav-text {
        font-size: 13px;
    }

    .search-input {
        font-size: 14px;
    }
}

@media (max-width: 576px) {
    .cyber-banner img.cyber-banner-img {
        max-height: 80px;
    }
    .cyber-header .row {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
    }

    /* Dòng 1: Logo + Danh mục */
    .cyber-header .row > div:nth-child(1),
    .cyber-header .row > div:nth-child(2) {
        display: flex;
        align-items: center;
        flex: 0 0 auto;
        margin-bottom: 8px;
    }

    .cyber-header .row > div:nth-child(1) {
        width: auto;
    }

    .cyber-header .row > div:nth-child(2) {
        width: auto;
        margin-left: 8px;
        padding-right: 12px;
    }

    /* Dòng 2: Search riêng full */
    .cyber-header .row > div:nth-child(3) {
        width: 100%;
        display: flex;
        justify-content: center;
        margin-bottom: 8px;
    }

    .cyber-search {
        width: 100%;
        max-width: 100%;
    }

    .search-input {
        font-size: 14px;
        padding: 10px 40px 10px 14px;
    }

    /* Dòng 3: Actions 5 phần */
    .cyber-header .row > div:nth-child(4) {
        width: 100%;
        margin-top: 5px;
    }

    .cyber-actions {
        display: flex;
        justify-content: space-between;
        flex-wrap: nowrap;
        gap: 6px;
        text-align: center;
    }

    .cyber-action {
        flex: 1;
        padding: 6px 4px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .cyber-action .action-text {
        display: none;
    }

    .cyber-action .action-icon {
        font-size: 16px;
        margin-bottom: 2px;
    }

    /* Thu gọn logo và danh mục */
    .cyber-logo {
        font-size: 18px;
    }

    .cyber-category-btn {
        padding: 5px 8px;
        font-size: 13px;
    }

    .category-text {
        display: none;
    }
}
/* Đăng nhập/ đăng ký */
.cyber-modal-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(8, 8, 24, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}
.cyber-modal {
    background: linear-gradient(145deg, #0d0d2b, #1a1a40);
    border: 1px solid var(--primary);
    padding: 30px;
    border-radius: 12px;
    width: 95%;
    max-width: 420px;
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.3);
    position: relative;
    color: white;
}
.modal-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    text-align: center;
    color: var(--primary);
    margin-bottom: 20px;
}
.cyber-input {
    width: 100%;
    margin-bottom: 12px;
    padding: 10px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--primary);
    color: white;
    border-radius: 6px;
    font-family: 'Rajdhani', sans-serif;
}
.cyber-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 10px var(--primary);
}
.cyber-button.auth-button {
    background: linear-gradient(145deg, #00f0ff, #00c2e0); /* Neon Cyan phong cách Cyber Gaming */
    color: #0d0d0d; /* Tăng tương phản trên nền sáng neon */
    border: none;
    padding: 10px;
    text-transform: uppercase;
    font-weight: bold;
    border-radius: 6px;
    margin-top: 10px;
    cursor: pointer;
}
.cyber-button.auth-button:hover {
    background: #00c2e0;
    box-shadow: 0 0 12px #00f0ff;
    transform: scale(1.03);
}

.cyber-divider {
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    margin: 16px 0;
    position: relative;
}
.cyber-divider::before, .cyber-divider::after {
    content: "";
    position: absolute;
    height: 1px;
    width: 40%;
    top: 50%;
    background: rgba(255,255,255,0.2);
}
.cyber-divider::before { left: 0; }
.cyber-divider::after { right: 0; }
.social-login {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 12px;
}
.google-btn, .facebook-btn {
    flex: 1;
    padding: 8px;
    border-radius: 4px;
    border: none;
    font-weight: 600;
    color: white;
    cursor: pointer;
    font-family: 'Rajdhani', sans-serif;
}
.google-btn {
    background: #db4437;
}
.facebook-btn {
    background: #3b5998;
}
.modal-close-btn {
    position: absolute;
    top: 10px;
    right: 12px;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--primary);
    cursor: pointer;
}
.modal-close-btn:hover {
    color: var(--secondary);
    transform: scale(1.1);
}
.text-switch {
    text-align: center;
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}
.text-switch a {
    color: var(--primary);
    text-decoration: none;
}
.small-link {
    font-size: 12px;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
}

/* Main Footer */
.cyber-footer {
    background: radial-gradient(circle at top left, #0d0d2b, #0b0b20);
    border-top: 2px solid var(--primary);
    font-family: 'Rajdhani', sans-serif;
    position: relative;
    z-index: 2;
    overflow: hidden;
}
.footer-title {
    font-size: 17px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}
.footer-divider {
    border-top: 1px dashed var(--primary);
    opacity: 0.2;
}
.footer-links,
.footer-contact {
    list-style: none;
    padding-left: 0;
    line-height: 2;
}
.footer-links a,
.footer-contact a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.75);
    transition: all 0.2s ease;
}
.footer-links a:hover,
.footer-contact a:hover {
    color: var(--secondary);
    text-shadow: 0 0 6px var(--secondary);
}
.footer-socials a {
    font-size: 20px;
    color: var(--primary);
    transition: transform 0.3s, color 0.3s;
    display: inline-block;
    margin-right: 10px;
}
.footer-socials a:hover {
    color: var(--secondary);
    transform: scale(1.2);
    text-shadow: 0 0 10px var(--secondary);
}
.footer-illustration {
    margin-top: 30px;
    text-align: center;
}
.footer-illustration img {
    max-width: 300px;
    border-radius: 10px;
    border: 1px solid var(--primary);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
}
@media (max-width: 768px) {
    .footer-title {
        font-size: 15px;
    }
    .footer-socials a {
        font-size: 18px;
    }
}
/* ======= Tech News Section ======= */
.tech-news-section {
    padding: 10px 30px;
    border: 1px solid var(--primary);
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0, 242, 255, 0.15);
    max-width: 1360px;  /* Thu hẹp khung */
    margin: 0 auto;     /* Canh giữa */
}


.section-title {
    font-size: 1.5rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--primary);
    text-shadow: 0 0 10px var(--primary);
    letter-spacing: 1px;
    padding-left: 10px;
}

.tech-card {
    border: 1px solid rgba(0, 242, 255, 0.2);
    border-radius: 10px;
    padding: 10px;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.tech-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 10px var(--primary);
    border-color: var(--primary);
}

.tech-img {
    border-radius: 8px;
    width: 100%;
    height: 150px;
    object-fit: cover;
    margin-bottom: 10px;
}

.tech-title {
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    text-shadow: 0 0 6px rgba(0,242,255,0.3);
}
.notification-modal {
    position: fixed;
    top: 110px;
    right: 20px;
    background: rgba(13, 13, 43, 0.95);
    border-left: 5px solid #00ff7f;
    border-radius: 8px;
    padding: 12px 20px;
    box-shadow: 0 0 20px rgba(0, 255, 127, 0.5);
    z-index: 9999;
    display: none;
    align-items: center;
    animation: none;
}
.notification-modal-content {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #00ff7f;
    font-weight: 600;
}


.notification-modal i {
    font-size: 20px;
    color: #00ff7f;
    text-shadow: 0 0 6px #00ff7f;
}

.notification-modal span {
    font-size: 15px;
    color: #fff;
    font-weight: 500;
}

@keyframes fadeInSlide {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOutSlide {
    from { opacity: 1; transform: translateY(0); }
    to { opacity: 0; transform: translateY(-20px); }
}
/* Tablet */
@media (max-width: 769px) {
    #header-wrapper.hide-banner {
        transform: translateY(-54px);
    }
}
@media (min-width: 770px) and (max-width: 992px) {
    #header-wrapper.hide-banner {
        transform: translateY(-150px);
    }
}
@media (min-width: 993px) and (max-width: 1200px) {
    #header-wrapper.hide-banner {
        transform: translateY(-145px);
    }
}
/* ==== Footer Carousel Arrows ==== */
.carousel-footer-prev,
.carousel-footer-next {
    width: 30px;
    height: 30px;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(0, 242, 255, 0.15);
    border: 1px solid var(--primary);
    border-radius: 50%;
    z-index: 10;
    transition: all 0.3s ease;
}

.carousel-footer-prev:hover,
.carousel-footer-next:hover {
    background-color: var(--primary);
    border-color: var(--secondary);
    box-shadow: 0 0 10px var(--secondary);
}

/* Dịch trái/phải ra ngoài thêm */
.carousel-footer-prev {
    left: -20px;
}
.carousel-footer-next {
    right: -20px;
}

/* Mobile chỉnh gần vào */
@media (max-width: 768px) {
    .carousel-footer-prev {
        left: -10px;
    }
    .carousel-footer-next {
        right: -10px;
    }
}
/* Ẩn thanh khuyến mãi nhỏ trên mobile */
@media (max-width: 768px) {
    .cyber-nav {
        display: none !important;
    }
}

@media (max-width: 768px) {
    .cyber-actions .action-text {
        display: none;
    }
}

/* ===== User Menu Dropdown (Cyber Style) ===== */
.user-menu {
    position: relative;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.user-info {
    text-align: center;
    padding: 2px 6px;
    transition: all 0.3s ease;
    border-radius: 4px;
    color: var(--primary);
    font-weight: 600;
    font-family: 'Rajdhani', sans-serif;
}

/* Dropdown box neon */
.user-dropdown {
    position: absolute;
    top: 110%;
    right: 0;
    background: var(--darker);
    border: 1px solid var(--primary);
    border-radius: 6px;
    padding: 6px 0;
    min-width: 140px;
    box-shadow: 0 0 12px var(--primary), 0 0 25px rgba(0, 242, 255, 0.5);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.25s ease;
    z-index: 999;
}

/* Hover show dropdown */
.user-menu.show .user-dropdown,
.user-menu:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Logout button neon */
.logout-btn {
    width: 100%;
    background: none;
    border: none;
    color: var(--primary);
    text-align: left;
    padding: 8px 14px;
    font-size: 13px;
    cursor: pointer;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.25s ease;
    font-family: 'Rajdhani', sans-serif;
}

.logout-btn:hover {
    background: rgba(255, 0, 60, 0.15);
    color: var(--secondary);
    box-shadow: 0 0 8px var(--secondary), 0 0 15px rgba(255, 0, 230, 0.5);
}

/* Mobile optimization */
@media (max-width: 768px) {
    .user-dropdown {
        right: auto;
        left: 0;
    }
}
.error-box {
    color: #ff4d4f;
    font-size: 13px;
    margin: 5px 0;
    min-height: 18px; /* luôn giữ khoảng trống */
}
/* ================== Avatar Ngẫu Nhiên ================== */
.avatar-generated {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: #fff;
    text-transform: uppercase;
    cursor: default;
    user-select: none;

    /* Cyber Gaming neon */
    border: 2px solid rgba(0, 242, 255, 0.8);
    box-shadow: 0 0 8px rgba(0, 242, 255, 0.7),
    0 0 15px rgba(0, 242, 255, 0.5),
    inset 0 0 6px rgba(255, 255, 255, 0.2);

    transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.avatar-generated:hover {
    transform: scale(1.1) rotate(2deg);
    box-shadow: 0 0 12px rgba(0, 242, 255, 1),
    0 0 25px rgba(0, 242, 255, 0.8),
    inset 0 0 8px rgba(255, 255, 255, 0.3);
}
/* ==== HEADER XNAV MEGA MENU (PATCH) ==== */
.xnavmega-wrapper {
    position: absolute;
    top: 150px;          /* Theo yêu cầu */
    left: 280px;         /* Theo yêu cầu */
    z-index: 1400;
    display: none;       /* Ẩn mặc định */
    pointer-events: none;
    width: auto;
    max-width: 1280px;
    padding: 4px;
}

.xnavmega-wrapper.xnavmega-has-open {
    display: block;
    pointer-events: auto;
}

/* Mỗi panel (ẩn mặc định) */
.xnavmega-panel {
    display: none;
    background: rgba(13, 13, 43, 0.97);
    border: 1px solid rgba(0, 242, 255, 0.25);
    box-shadow: 0 8px 28px rgba(0,0,0,0.6);
    border-radius: 12px;
    padding: 18px 22px;
    min-width: 860px;
    max-width: 1180px;
    max-height: 520px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.15) transparent;
}

.xnavmega-panel::-webkit-scrollbar {
    width: 6px;
}
.xnavmega-panel::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.18);
    border-radius: 4px;
}
.xnavmega-panel::-webkit-scrollbar-track {
    background: transparent;
}

.xnavmega-panel.xnavmega-visible {
    display: block;
    animation: xnavmegaFade 140ms ease;
}

@keyframes xnavmegaFade {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* Bố cục cột */
.xnavmega-body {
    display: flex;
    flex-wrap: wrap;
    gap: 18px 34px;
}

.xnavmega-col h4 {
    font-size: 13px;
    font-weight: 600;
    color: #58c9ff;
    margin: 0 0 6px;
    text-transform: uppercase;
    letter-spacing: .5px;
}

.xnavmega-col ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
.xnavmega-col ul li {
    font-size: 12.5px;
    padding: 3px 0;
    cursor: pointer;
    color: #d2d7e1;
    transition: color .18s;
    white-space: nowrap;
}
.xnavmega-col ul li:hover {
    color: #ffffff;
}

/* Trigger (mục cha) đang active */
.cyber-categories-dropdown .category-item.xnavmega-trigger.xnavmega-active {
    background: linear-gradient(90deg,#123348,#0d1f2b);
    color: #fff;
    border-left: 2px solid var(--primary);
    transform: translateX(0); /* ghi đè hiệu ứng hover mặc định */
}

/* Khi dropdown đóng → đảm bảo mega ẩn (an toàn) */
.cyber-categories-dropdown:not(.active) ~ .xnavmega-wrapper {
    display: none !important;
}

/* Mobile: ẩn mega menu header (nếu muốn tắt ở màn hình nhỏ) */
@media (max-width: 990px) {
    .xnavmega-wrapper {
        display: none !important;
    }
}
/* ==== DIM LAYER KHI MỞ DANH MỤC ==== */
#xnavmega-dim-layer {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.55);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .25s ease;
    z-index: 800; /* Dưới header(1000) & dưới mega wrapper(1400) nhưng trên nội dung */
}
#xnavmega-dim-layer.active {
    opacity: 1;
    pointer-events: auto;
}

/* ==== FOCUS ĐẬM CHO MEGA PANEL KHI HIỆN ==== */
.xnavmega-panel.xnavmega-visible {
    background: linear-gradient(135deg,#0f1b33 0%, #0a0f25 70%);
    box-shadow:
            0 0 0 1px rgba(0,242,255,0.35),
            0 0 22px -4px rgba(0,242,255,0.55),
            0 0 60px -10px rgba(255,0,230,0.35);
    border-color: rgba(0,242,255,0.45);
    backdrop-filter: blur(10px) saturate(140%);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
    transform: translateY(0) scale(1.01);
    transition: box-shadow .25s ease, transform .25s ease, background .3s ease;
}

/* (Tuỳ chọn – hover sâu hơn ngay trong panel) */
.xnavmega-panel.xnavmega-visible:hover {
    box-shadow:
            0 0 0 1px rgba(0,242,255,0.5),
            0 0 30px -2px rgba(0,242,255,0.7),
            0 0 70px -8px rgba(255,0,230,0.45);
    transform: scale(1.015);
}