/* ===== Subsidiaries Section ===== */
.subsidiaries-section {
    padding: 120px 0 80px;
    background: var(--background-section);
}

/* ===== Section Title ===== */
.subsidiaries-section .section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 30px;
    color: var(--text-color-light);
}

/* ===== Section Description ===== */
.subsidiaries-section .section__title + p {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    line-height: 1.7;
    color: var(--text-color-medium);
    text-align: center;
    max-width: 800px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

/* ===== Subsidiaries Navigation ===== */
.subsidiaries__nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.subsidiaries__nav-btn {
    background: var(--background-card);
    border: 1px solid var(--border-color-softer);
    border-radius: 50px;
    padding: 15px 30px;
    color: var(--text-color-medium);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    /* Touch-friendly */
    -webkit-tap-highlight-color: transparent;
}

.subsidiaries__nav-btn:hover,
.subsidiaries__nav-btn:active {
    background: var(--background-card-soft);
    color: var(--text-color-light);
    border-color: var(--accent-color);
    box-shadow: var(--card-bg-hover-shadow);
}

/* Active state for selected button */
.subsidiaries__nav-btn--active {
    background: var(--accent-color);
    color: var(--background-dark);
    border-color: var(--accent-color);
    font-weight: bold;
}

/* Ensure active button stays green even on touch */
.subsidiaries__nav-btn--active:hover,
.subsidiaries__nav-btn--active:active {
    background: var(--accent-color-hover);
    color: var(--background-dark);
    border-color: var(--accent-color-hover);
}

.subsidiaries__nav-btn:focus-visible {
    outline: var(--focus-visible-outline-width) solid var(--focus-outline-color);
    outline-offset: var(--focus-visible-outline-offset);
    box-shadow: 0 0 0 4px var(--focus-visible-ring-color);
}

/* ===== Subsidiary Content ===== */
.subsidiary__content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.subsidiary__content--active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* ===== Subsidiary Header ===== */
.subsidiary__header {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 40px;
    align-items: center;
    margin-bottom: 60px;
    background: var(--background-card);
    border: 1px solid var(--border-color-softer);
    border-radius: 15px;
    padding: 40px;
}

.subsidiary__logo {
    flex-shrink: 0;
}

.subsidiary__logo-image {
    width: 120px;
    height: auto;
    object-fit: contain;
    /* Prevent layout shift */
    aspect-ratio: 1/1;
}

.subsidiary__intro {
    flex: 1;
}

.subsidiary__title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--text-color-light);
    margin-bottom: 20px;
}

.subsidiary__description {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    line-height: 1.7;
    color: var(--text-color-medium);
}

/* ===== Section Titles ===== */
.subsidiary__section-title {
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    font-weight: 700;
    color: var(--text-color-light);
    margin-bottom: 40px;
    text-align: center;
}

/* ===== Stats Section ===== */
.subsidiary__stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.stat-card {
    background: var(--background-card);
    border: 1px solid var(--border-color-softer);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: var(--background-card-soft);
    box-shadow: var(--card-bg-hover-shadow);
    transform: translateY(-5px);
}

.stat-card__number {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 10px;
    line-height: 1;
}

.stat-card__label {
    font-size: 1rem;
    color: var(--text-color-medium);
    font-weight: 500;
    line-height: 1.4;
}

/* ===== Social Section ===== */
.subsidiary__social {
    margin-top: 60px;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.social-card {
    background: var(--background-card);
    border: 1px solid var(--border-color-softer);
    border-radius: 15px;
    padding: 25px 20px;
    text-align: center;
    text-decoration: none;
    color: var(--text-color-light);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.social-card:hover {
    background: var(--background-navbar-hover);
    border-color: var(--accent-color);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    transform: translateY(-5px);
    text-decoration: none;
    color: var(--text-color-light);
}

.social-card__icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border-radius: 50%;
    font-size: 1.5rem;
    color: var(--text-color-light);
    border: 2px solid var(--border-color-softer);
    transition: all 0.3s ease;
}

.social-card:hover .social-card__icon {
    border-color: var(--accent-color);
    color: #fff;
}

.social-card__label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-light);
}

/* ===== Video Modal ===== */
.video-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.video-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-modal__content {
    background: var(--background-card);
    border: 1px solid var(--border-color-softer);
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
}

.video-modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color-softer);
}

.video-modal__title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-color-light);
}

.video-modal__close {
    background: none;
    border: none;
    color: var(--text-color-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.video-modal__close:hover {
    background: var(--background-card-soft);
}

.video-modal__body {
    padding: 0;
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
}

.video-modal__body iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .subsidiaries-section {
        padding: 100px 0 60px;
    }
    
    .subsidiaries__nav {
        gap: 15px;
        margin-bottom: 60px;
    }
    
    .subsidiaries__nav-btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .subsidiary__header {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
        padding: 30px 25px;
    }
    
    .subsidiary__logo-image {
        width: 100px;
        margin: 0 auto;
    }
    
    .subsidiary__stats {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-bottom: 60px;
    }
    
    .stat-card {
        padding: 25px 15px;
    }
    
    .social-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .subsidiaries__nav {
        gap: 10px;
    }
    
    .subsidiaries__nav-btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .subsidiary__header {
        padding: 25px 20px;
        gap: 25px;
    }
    
    .subsidiary__logo-image {
        width: 80px;
    }
    
    .social-card {
        padding: 20px 15px;
    }
    
    .social-card__icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .video-modal__content {
        width: 95%;
        margin: 20px;
    }
    
    .video-modal__header {
        padding: 15px 20px;
    }
}