/**
 * =========================================
 * SECTION: CORE VALUES - GIÁ TRỊ CỐT LÕI
 * =========================================
 * File: assets/css/culture-core-values.css
 * Dùng cho: Section 5 của page "Văn hóa – Giá trị Tabcom"
 * Scope: .tabcom-core-values
 * =========================================
 */

/* --- 1. HỆ THỐNG MÀU SẮC & BIẾN --- */
.tabcom-core-values {
    --primary: #0038FF;
    --primary-light: #0038FF;
    --accent: rgba(0, 56, 255, 0.08);
    --text-dark: #0F172A;
    --text-gray: #475569;
    --bg-body: #FFFFFF;
    --gradient-icon: linear-gradient(135deg, #0038FF 0%, #0038FF 100%);
    --gradient-border: linear-gradient(to right, #0038FF, #0038FF);
    --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 20px 25px -5px rgba(0, 56, 255, 0.15), 0 10px 10px -5px rgba(0, 56, 255, 0.04);
}

.tabcom-core-values {
    font-family: 'Plus Jakarta Sans', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-dark);
    line-height: 1.6;
    padding: 80px 20px;
}

.tabcom-core-values * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.tabcom-core-values .container {
    max-width: 1280px;
    margin: 0 auto;
}

/* --- 2. HEADER SECTION --- */
.tabcom-core-values .section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 70px auto;
}

.tabcom-core-values .sub-title {
    color: var(--primary-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: inline-block;
    background: var(--accent);
    padding: 8px 16px;
    border-radius: 30px;
}

.tabcom-core-values .main-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.2;
}

.tabcom-core-values .main-title span {
    background: var(--gradient-icon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tabcom-core-values .desc-title {
    font-size: 1.1rem;
    color: var(--text-gray);
}


/* --- 3. GRID CARDS --- */
.tabcom-core-values .values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

/* --- 4. CARD DESIGN --- */
.tabcom-core-values .value-card {
    background: #fff;
    border-radius: 24px;
    padding: 40px 30px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid #E2E8F0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Hover Effect */
.tabcom-core-values .value-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
    border-color: transparent;
}

/* Viền Gradient khi Hover */
.tabcom-core-values .value-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 24px;
    border: 2px solid transparent;
    background: var(--gradient-border) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.tabcom-core-values .value-card:hover::after {
    opacity: 1;
}

/* Số nền chìm (Watermark) */
.tabcom-core-values .card-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    font-weight: 900;
    color: #F1F5F9;
    z-index: 0;
    transition: color 0.3s;
    line-height: 1;
}

.tabcom-core-values .value-card:hover .card-number {
    color: var(--accent);
}

/* Nội dung Card */
.tabcom-core-values .card-content {
    position: relative;
    z-index: 1;
}

/* Icon Wrapper */
.tabcom-core-values .icon-box {
    width: 60px;
    height: 60px;
    background: var(--accent);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 25px;
    transition: transform 0.4s ease;
}

.tabcom-core-values .value-card:hover .icon-box {
    background: var(--gradient-icon);
    color: #fff;
    transform: rotate(-10deg) scale(1.1);
    box-shadow: 0 10px 20px rgba(0, 56, 255, 0.2);
}

.tabcom-core-values .card-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 15px;
    text-transform: uppercase;
}

/* Đường kẻ nhỏ dưới tiêu đề */
.tabcom-core-values .divider {
    width: 40px;
    height: 3px;
    background: #E2E8F0;
    margin-bottom: 20px;
    transition: width 0.3s ease, background 0.3s ease;
}

.tabcom-core-values .value-card:hover .divider {
    width: 80px;
    background: var(--primary-light);
}


/* Nội dung chi tiết */
.tabcom-core-values .detail-list {
    list-style: none;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.tabcom-core-values .detail-list li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 20px;
}

/* Dấu gạch đầu dòng custom */
.tabcom-core-values .detail-list li::before {
    content: "\f00c";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 3px;
    color: var(--primary-light);
    font-size: 0.8rem;
}

.tabcom-core-values .quote {
    font-style: italic;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 15px;
    display: block;
    font-size: 1rem;
}

/* Highlight text trong nội dung */
.tabcom-core-values strong {
    color: var(--text-dark);
    font-weight: 700;
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .tabcom-core-values .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tabcom-core-values .main-title {
        font-size: 2.5rem;
    }
}

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

    .tabcom-core-values .main-title {
        font-size: 2rem;
    }

    .tabcom-core-values {
        padding: 40px 15px;
    }
}