/**
 * =========================================
 * ECOSYSTEM PAGE - ALL SECTIONS CSS
 * =========================================
 * File: assets/css/ecosystem-page.css
 * Dùng cho: Trang Hệ sinh thái Tabcom (page-he-sinh-thai-tabcom.php)
 * Gộp tất cả CSS của các sections vào 1 file
 * =========================================
 */

/* =========================================
   GLOBAL VARIABLES & UTILITIES
   ========================================= */
:root {
    --brand-blue: #122298;
    --brand-cyan: #01f3f8;
    --brand-green: #05e196;
    --brand-orange: #ee4d2d;
    --tiktok-black: #000000;
    --tiktok-cyan: #25F4EE;
    --tiktok-pink: #FE2C55;
    --tech-blue: #2563eb;
    --tech-indigo: #4f46e5;
    --media-purple: #8b5cf6;
    --media-pink: #ec4899;
    --academy-blue: #1d4ed8;
    --academy-gold: #f59e0b;
    
    --bg-body: #f1f5f9;
    --bg-card: #ffffff;
    --bg-highlight: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-subtle: #e2e8f0;
    
    --shadow-card: 0 4px 20px -5px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 10px 25px -5px rgba(18, 34, 152, 0.1);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Page Section Base */
.page-section {
    width: 100%;
    min-height: 100vh;
    padding: 80px 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    position: relative;
}

/* Ecosystem Divider */
.ecosystem-divider {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
    opacity: 0.6;
}

.divider-line {
    height: 1px;
    width: 150px;
    background: linear-gradient(90deg, transparent, #cbd5e1, transparent);
}

.divider-label {
    margin: 0 20px;
    font-size: 0.85rem;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.divider-icon {
    width: 40px;
    height: 40px;
    border: 1px solid #cbd5e1;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #94a3b8;
    font-size: 1rem;
    background: #fff;
}

/* =========================================
   SECTION: COMPANIES (5 CÔNG TY)
   ========================================= */
#section-companies {
    background-color: var(--bg-body);
    background-image: radial-gradient(#cbd5e1 1.5px, transparent 1.5px);
    background-size: 32px 32px;
    color: var(--text-primary);
}

#section-companies .container {
    max-width: 1200px;
    width: 100%;
}

#section-companies .section-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 15px;
}

#section-companies .section-header i {
    color: var(--brand-blue);
    font-size: 1.8rem;
}

#section-companies .section-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--brand-blue);
    margin: 0;
}

#section-companies .section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 50px;
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

#section-companies .companies-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    justify-items: center;
}

#section-companies .company-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 25px 18px;
    text-align: center;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100%;
}

#section-companies .company-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--brand-cyan), var(--brand-blue));
    opacity: 0;
    transition: opacity 0.3s ease;
}

#section-companies .company-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--brand-cyan);
}

#section-companies .company-card:hover::before {
    opacity: 1;
}

#section-companies .company-logo-wrapper {
    width: 120px;
    height: 120px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
    border-radius: 20px;
    padding: 15px;
    border: 1px solid var(--border-subtle);
    transition: var(--transition-smooth);
}

#section-companies .company-card:hover .company-logo-wrapper {
    background: #fff;
    border-color: var(--brand-cyan);
    transform: scale(1.05);
}

#section-companies .company-logo {
    width: 100%;
    height: auto;
    object-fit: contain;
}

#section-companies .company-name {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 8px;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

#section-companies .company-slogan {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--brand-blue);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 15px;
    display: block;
}

#section-companies .company-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
    min-height: 72px;
    text-align: center;
}

#section-companies .company-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 20px;
}

#section-companies .company-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-body);
    padding: 6px 14px;
    border-radius: 50px;
    border: 1px solid var(--border-subtle);
    transition: var(--transition-smooth);
    white-space: nowrap;
}

#section-companies .company-card:hover .company-tag {
    background: #fff;
    border-color: var(--brand-cyan);
    color: var(--brand-blue);
    transform: translateY(-2px);
}

/* =========================================
   RESPONSIVE - 5 CÔNG TY TRÊN 1 DÒNG
   ========================================= */

/* Desktop Large: > 1400px - 5 cột full */
@media (min-width: 1400px) {
    #section-companies .container {
        max-width: 1400px;
    }
    
    #section-companies .companies-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 24px;
    }
}

/* Desktop: 1200px - 1400px - 5 cột compact */
@media (min-width: 1200px) and (max-width: 1399px) {
    #section-companies .container {
        max-width: 1280px;
    }
    
    #section-companies .companies-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 18px;
    }
    
    #section-companies .company-card {
        padding: 22px 15px;
    }
    
    #section-companies .company-logo-wrapper {
        width: 90px;
        height: 90px;
        margin-bottom: 18px;
    }
    
    #section-companies .company-name {
        font-size: 1.15rem;
    }
    
    #section-companies .company-desc {
        font-size: 0.85rem;
        min-height: 60px;
    }
    
    #section-companies .company-tag {
        font-size: 0.7rem;
        padding: 5px 10px;
    }
}

/* Tablet Large: 992px - 1199px - 5 cột nhỏ hơn */
@media (min-width: 992px) and (max-width: 1199px) {
    #section-companies .container {
        max-width: 100%;
        padding: 0 20px;
    }
    
    #section-companies .companies-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 15px;
    }
    
    #section-companies .company-card {
        padding: 18px 12px;
        border-radius: 16px;
    }
    
    #section-companies .company-logo-wrapper {
        width: 75px;
        height: 75px;
        margin-bottom: 15px;
        border-radius: 14px;
        padding: 10px;
    }
    
    #section-companies .company-name {
        font-size: 1rem;
    }
    
    #section-companies .company-slogan {
        font-size: 0.75rem;
        margin-bottom: 10px;
    }
    
    #section-companies .company-desc {
        font-size: 0.8rem;
        min-height: 55px;
        margin-bottom: 15px;
    }
    
    #section-companies .company-tag {
        font-size: 0.65rem;
        padding: 4px 8px;
    }
}

/* Tablet: 768px - 991px - 3 cột */
@media (min-width: 768px) and (max-width: 991px) {
    #section-companies .companies-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    #section-companies .company-card {
        padding: 25px 18px;
        max-width: 100%;
    }
    
    #section-companies .company-logo-wrapper {
        width: 90px;
        height: 90px;
    }
}

/* Mobile Large: 576px - 767px - 2 cột */
@media (min-width: 576px) and (max-width: 767px) {
    #section-companies {
        padding: 60px 16px;
    }

    #section-companies .section-header {
        flex-direction: column;
        gap: 8px;
    }

    #section-companies .section-header h2 {
        font-size: 1.6rem;
        text-align: center;
    }

    #section-companies .section-subtitle {
        font-size: 1rem;
        margin-bottom: 40px;
        padding: 0 10px;
    }

    #section-companies .companies-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    #section-companies .company-card {
        padding: 22px 16px;
        max-width: 100%;
    }

    #section-companies .company-logo-wrapper {
        width: 80px;
        height: 80px;
        margin-bottom: 15px;
    }
    
    #section-companies .company-name {
        font-size: 1.1rem;
    }
    
    #section-companies .company-desc {
        min-height: auto;
        font-size: 0.85rem;
    }
}

/* Mobile: < 576px - 1 cột */
@media (max-width: 575px) {
    #section-companies {
        padding: 50px 12px;
    }

    #section-companies .section-header {
        flex-direction: column;
        gap: 8px;
    }

    #section-companies .section-header h2 {
        font-size: 1.4rem;
        text-align: center;
    }

    #section-companies .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 35px;
        padding: 0 5px;
    }

    #section-companies .companies-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    #section-companies .company-card {
        padding: 25px 20px;
        max-width: 100%;
    }

    #section-companies .company-logo-wrapper {
        width: 90px;
        height: 90px;
        margin-bottom: 18px;
    }
    
    #section-companies .company-name {
        font-size: 1.2rem;
    }
    
    #section-companies .company-desc {
        min-height: auto;
        font-size: 0.9rem;
    }
}

/* =========================================
   ACCESSIBILITY & PRINT
   ========================================= */
@media (prefers-reduced-motion: reduce) {
    #section-companies .company-card,
    #section-companies .company-logo-wrapper,
    #section-companies .company-tag {
        transition: none;
    }
}

@media (prefers-contrast: high) {
    #section-companies .company-card,
    #section-companies .company-tag {
        border-width: 2px;
    }
}

@media print {
    #section-companies {
        background: white;
        background-image: none;
    }
    
    #section-companies .company-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }
    
    #section-companies .company-card:hover {
        transform: none;
    }
}