/**
 * =========================================
 * SECTION: CULTURE BANNER - VĂN HÓA & GIÁ TRỊ TABCOM
 * =========================================
 * File: assets/css/culture-banner.css
 * Dùng cho: Banner đầu tiên của page "Văn hóa – Giá trị Tabcom"
 * Scope: .tabcom-culture-banner
 * =========================================
 */

/* --- Reset cho scope --- */
.tabcom-culture-banner * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.tabcom-culture-banner {
    font-family: 'Montserrat', sans-serif;
    color: #fff;
    overflow-x: hidden;
}

/* --- Cấu trúc Banner Chính --- */
.tabcom-culture-banner .hero-banner {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: url('https://images.unsplash.com/photo-1497366216548-37526070297c?q=80&w=1920&auto=format&fit=crop') no-repeat center center/cover;
    background-attachment: fixed;
}

/* --- Lớp phủ màu (Overlay) --- */
.tabcom-culture-banner .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Reduce overlay opacity so the background image is more visible */
    background: linear-gradient(135deg, rgba(5, 12, 36, 0.50) 0%, rgba(10, 25, 60, 0.45) 100%);
    z-index: 1;
}

/* --- Nội dung chính --- */
.tabcom-culture-banner .container {
    position: relative;
    z-index: 2;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

/* --- 1. Badge "OUR DNA" (Hiệu ứng Kính - Glassmorphism) --- */
.tabcom-culture-banner .badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 30px;
    border-radius: 50px;
    text-transform: uppercase;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: #b0c4de;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 0 20px rgba(0, 198, 255, 0.1);
    transition: all 0.3s ease;
}

.tabcom-culture-banner .badge:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #00C6FF;
    color: #fff;
    box-shadow: 0 0 25px rgba(0, 198, 255, 0.4);
}

/* --- 2. Tiêu đề lớn & Màu Gradient --- */
.tabcom-culture-banner .hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    font-weight: 900;
    text-transform: uppercase;
}

.tabcom-culture-banner .text-white {
    color: #fff;
    display: block;
    margin-bottom: 5px;
    font-size: 3rem;
    font-weight: 700;
}

.tabcom-culture-banner .text-gradient {
    /* Màu trắng cho "Giá trị Tabcom" */
    background: none !important;
    -webkit-background-clip: unset !important;
    -webkit-text-fill-color: #ffffff !important;
    color: #ffffff;
    display: inline-block;
    filter: drop-shadow(0 0 18px rgba(255, 255, 255, 0.18));
    position: relative;
}

/* --- 3. Điều hướng câu hỏi (Navigation) --- */
.tabcom-culture-banner .nav-questions {
    display: flex;
    gap: 50px;
    margin-top: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.tabcom-culture-banner .nav-item {
    text-decoration: none;
    color: #aeb9cc;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
}

.tabcom-culture-banner .icon-box {
    width: 32px;
    height: 32px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.8rem;
    color: #fff;
    transition: all 0.4s ease;
}

.tabcom-culture-banner .nav-item:hover {
    color: #fff;
    transform: translateY(-5px);
}

.tabcom-culture-banner .nav-item:hover .icon-box {
    background: #00C6FF;
    border-color: #00C6FF;
    box-shadow: 0 0 15px #00C6FF;
    transform: rotate(360deg) scale(1.1);
}

/* --- 4. Mũi tên cuộn xuống (Scroll Down) --- */
.tabcom-culture-banner .scroll-down {
    position: absolute;
    bottom: 40px;
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.4);
    animation: cultureBounce 2s infinite;
    cursor: pointer;
    transition: color 0.3s;
}

.tabcom-culture-banner .scroll-down:hover {
    color: #00C6FF;
}

/* --- Animations (Chuyển động) --- */
@keyframes cultureFadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cultureFadeInDown {
    from { opacity: 0; transform: translateY(-40px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes cultureBounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Class tiện ích để gán animation */
.tabcom-culture-banner .fade-in-up { 
    animation: cultureFadeInUp 1s ease-out forwards; 
    opacity: 0; 
}

.tabcom-culture-banner .fade-in-down { 
    animation: cultureFadeInDown 1s ease-out forwards; 
    opacity: 0; 
}

/* Độ trễ (Delay) để các phần tử hiện ra lần lượt */
.tabcom-culture-banner .delay-1 { animation-delay: 0.2s; }
.tabcom-culture-banner .delay-2 { animation-delay: 0.4s; }
.tabcom-culture-banner .delay-3 { animation-delay: 0.8s; }

/* --- Responsive Mobile --- */
@media (max-width: 768px) {
    .tabcom-culture-banner .hero-title { 
        font-size: 3rem; 
    }
    
    .tabcom-culture-banner .text-white { 
        font-size: 2rem; 
    }
    
    .tabcom-culture-banner .nav-questions { 
        flex-direction: column; 
        gap: 20px; 
        align-items: flex-start; 
    }
    
    .tabcom-culture-banner .badge { 
        padding: 8px 20px; 
        font-size: 0.75rem; 
    }
}