/* ============ Responsive Grid ============ */
.iptv-channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}

@media (min-width: 1600px) {
    .iptv-channels-grid {
        grid-template-columns: repeat(5, 1fr);
        gap: 20px;
    }
}

@media (max-width: 1200px) {
    .iptv-channels-grid {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    }
}

@media (max-width: 768px) {
    .iptv-channels-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 12px;
    }
}

/* ============ Channel Card Styling ============ */
.iptv-channel-item {
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 6px;
    padding: 10px 15px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    outline: none;
    min-height: 60px;
}

.iptv-channel-item:hover {
    background: #1a1a1a;
    border-color: #555;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.iptv-channel-item:focus {
    border-color: #0078d4;
    outline: 2px solid #0078d4;
    outline-offset: 2px;
}

.iptv-channel-item:active {
    transform: translateY(-1px);
}

/* Logo Area */
.channel-logo {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #222;
}

.channel-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 4px;
}

.channel-logo-placeholder {
    background: linear-gradient(135deg, #333 0%, #444 100%);
    color: #fff;
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
}

/* Channel Name */
.channel-name {
    flex: 1;
    text-align: left;
    font-size: 13px;
    color: #ddd;
    font-weight: 500;
    line-height: 1.3;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    padding-right: 10px;
}

/* ============ Load More Button ============ */
.iptv-load-more-category {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    max-width: 300px;
    margin: 24px auto 0;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    outline: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.iptv-load-more-category:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.iptv-load-more-category:active {
    transform: translateY(0);
    background: rgba(255, 255, 255, 0.15);
}

.iptv-load-more-category:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    backdrop-filter: none;
}

.iptv-load-more-category svg {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.iptv-load-more-category:hover svg {
    transform: translateY(2px);
}

/* ============ Loading Spinner ============ */
.iptv-loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* ============ No Content ============ */
.iptv-no-content {
    text-align: center;
    padding: 80px 40px;
    color: #808080;
    font-size: 17px;
    font-weight: 400;
}

/* ============ Accessibility ============ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 2px solid #0078d4;
    outline-offset: 2px;
}

@media (prefers-contrast: high) {
    .iptv-category-group {
        border: 2px solid currentColor;
    }

    .iptv-channel-item {
        border: 2px solid currentColor;
    }
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ============ Mobile Optimization ============ */
@media (hover: none) and (pointer: coarse) {
    .iptv-channel-item {
        padding: 24px 16px;
    }

    .iptv-category-header {
        min-height: 72px;
    }

    .toggle-btn {
        padding: 12px;
    }
}

/* ============ Print Styles ============ */
@media print {

    .toggle-btn,
    .iptv-load-more-category {
        display: none !important;
    }

    .iptv-category-group.collapsed .iptv-category-content {
        max-height: none;
        opacity: 1;
        padding: 20px;
    }
}

/* ============ Load More Categories Button ============ */
.iptv-load-more-categories {
    text-align: center;
    margin: 40px 0;
}

.iptv-load-more-categories-btn {
    display: block !important;
    width: 100% !important;
    max-width: 300px !important;
    margin: 0 auto !important;
    padding: 14px 28px !important;
    background: rgba(255, 255, 255, 0.1) !important;
    backdrop-filter: blur(10px) !important;
    -webkit-backdrop-filter: blur(10px) !important;
    color: #ffffff !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    text-align: center !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 50px !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2) !important;
    text-transform: none !important;
    outline: none !important;
}

.iptv-load-more-categories-btn:hover {
    background: rgba(255, 255, 255, 0.2) !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3) !important;
    border-color: rgba(255, 255, 255, 0.3) !important;
}

.iptv-load-more-categories-btn:active {
    transform: translateY(0) !important;
}

.iptv-load-more-categories-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============ Toggle Icon Animation ============ */
.toggle-icon {
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
}

.iptv-category-group.collapsed .toggle-icon {
    transform: rotate(-90deg);
}