/* Premium Header */
html, body {
    margin: 0;
    padding: 0;
    width: 100%;
    overflow-x: hidden;
}
.app-header {
    background-color:#000000;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 100%;
    padding: 0 1rem;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.app-logo {
    height: 32px;
    width: auto;
}

.header-content h1 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.header-search {
    display: flex;
    align-items: center;
    background-color: var(--bg-tertiary);
    border-radius: 50px;
    padding: 0.6rem 1rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.header-search:focus-within {
    box-shadow: 0 0 0 2px var(--primary-red);
}

.header-search i {
    color: var(--text-secondary);
    margin-right: 0.5rem;
    font-size: 0.9rem;
}

.header-search input {
    background: transparent;
    border: none;
    color: var(--text-primary);
    flex-grow: 1;
    outline: none;
    font-size: 0.95rem;
    font-weight: 400;
}

/* Filter Chips */
.filter-chips-container {
    display: flex;
    gap: 0.5rem;
    padding: 0.8rem 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.filter-chips-container::-webkit-scrollbar {
    display: none;
}

.filter-chip {
    padding: 0.6rem 1rem;
    border-radius: 50px;
    background-color: var(--bg-tertiary);
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    white-space: nowrap;
    flex-shrink: 0;
    border: 1px solid transparent;
}

.filter-chip:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.05);
}

.filter-chip.active {
    background-color: var(--primary-red);
    color: white !important;
    border-color: var(--primary-red);
    box-shadow: 0 4px 12px rgba(255, 45, 85, 0.3);
}

.filter-chip.active i {
    color: white !important;
}

.filter-chip[data-filter="public"] {
    color: var(--public-color);
}

.filter-chip[data-filter="private"] {
    color: var(--private-color);
}

.filter-chip[data-filter="unlisted"] {
    color: var(--unlisted-color);
}

/* Compact Playlist Grid */
.compact-playlist-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
    padding: 0 0.8rem 2rem;
}

.playlist-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 0.8rem;
}

.playlist-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-red), var(--primary-red-light));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.playlist-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 45, 85, 0.15);
    border-color: rgba(255, 45, 85, 0.3);
}

.playlist-card:hover::before {
    opacity: 1;
}

.playlist-card:active {
    transform: translateY(0);
}

.playlist-icon-container {
    position: relative;
    width: 100%;
    aspect-ratio: 1/1;
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    margin-bottom: 0.8rem;
}

.playlist-icon {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    border-radius: 8px;
}

.playlist-title {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.4rem;
}

.playlist-description {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 0.6rem;
    min-height: 2.2rem;
    position: relative;
}

.playlist-description::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1.2rem;
    background: linear-gradient(to bottom, 
        rgba(21, 21, 21, 0) 0%, 
        var(--bg-secondary) 100%);
}

.playlist-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.playlist-visibility {
    padding: 0.15rem 0.5rem;
    border-radius: 50px;
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.playlist-visibility.public {
    background-color: rgba(40, 167, 69, 0.15);
    color: var(--public-color);
}

.playlist-visibility.private {
    background-color: rgba(220, 53, 69, 0.15);
    color: var(--private-color);
}

.playlist-visibility.unlisted {
    background-color: rgba(253, 126, 20, 0.15);
    color: var(--unlisted-color);
}

/* Disabled Hover on Page Transition */
body.page-transition .playlist-card {
    pointer-events: none;
    transform: none !important;
    box-shadow: none !important;
    border-color: rgba(255, 255, 255, 0.05) !important;
}

body.page-transition .playlist-card::before {
    opacity: 0 !important;
}

/* Empty State */
.empty-state {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-red);
}

.empty-state h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.2rem;
    color: var(--text-primary);
}

.empty-state p {
    margin: 0;
    font-size: 0.9rem;
}

/* Responsive Adjustments */
@media (min-width: 768px) {
    .compact-playlist-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
        padding: 0 1rem 2rem;
    }
    
    .header-content {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
    
    .header-search {
        width: 240px;
    }
}

/* iPhone Notch/Punch-hole Safe Areas */
@supports (padding: max(0px)) {
    .app-header,
    .compact-playlist-grid {
        padding-left: max(0.8rem, env(safe-area-inset-left));
        padding-right: max(0.8rem, env(safe-area-inset-right));
    }
    
    .compact-playlist-grid {
        padding-bottom: max(2rem, env(safe-area-inset-bottom));
    }
}