/* ======================================
    Library Page Specific Styles
    Version: 2.7 (Banner Polish)
    ======================================
*/

/* --- DEFINITIVE SCROLL FIX V2 --- */
/* This more aggressive ruleset ensures library pages are always scrollable. */
html.library-page,
html.library-page body {
    height: auto !important;
    overflow: visible !important;
    position: static !important;
}

html.library-page {
    overflow-y: auto !important; /* Main scrollbar on html */
    overflow-x: hidden !important;
}

html.library-page body {
    min-height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
    padding-top: var(--header-height-mobile) !important;
}

@media (min-width: 1024px) {
    html.library-page body {
         padding-top: var(--header-height) !important;
    }
}

html.library-page .library-main {
    flex-grow: 1 !important;
}

/* Lock body from scrolling ONLY when filter modal is open */
body.filter-modal-open {
    overflow: hidden !important;
}
/* --- END OF SCROLL FIX --- */


/* --- BANNER & HERO STYLES --- */
.library-hero {
    position: relative;
    text-align: center;
    padding: 4rem 1rem;
    background-size: cover;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border-light);
    overflow: hidden; /* Recommended for backdrop-filter */
}

body[data-library="cinematic"] .library-hero {
    background-image: url('../assets/images/banner-cinematic.png');
    background-position: center;
}
body[data-library="traditional"] .library-hero {
    background-image: url('../assets/images/banner-traditional.png');
    background-position: center 65%;
}

.library-hero .overlay {
    position: absolute;
    inset: 0;
    background-color: rgba(25, 15, 5, 0.6); /* Slightly darker overlay */
    backdrop-filter: blur(5px); /* Noticeable blur effect */
    -webkit-backdrop-filter: blur(5px); /* Safari support */
    z-index: 1;
}

.library-hero .hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
}

.library-hero h1 {
    font-family: var(--font-primary);
    font-size: clamp(2.2rem, 6vw, 3rem);
    font-weight: 700;
    color: var(--color-text-light);
    text-shadow: 0 2px F10px rgba(0,0,0,0.5);
    margin-bottom: 0.5rem;
}

.library-hero p {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
}

/* --- Filter and Search Controls --- */
.library-controls {
    padding: 2.5rem 1rem;
    background-color: var(--color-bg-light);
    border-bottom: 1px solid var(--color-border);
}

.search-and-filter-bar-container {
    display: flex;
    gap: 1rem;
    align-items: center;
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.search-input-wrapper {
    position: relative;
    flex-grow: 1;
}

.search-input-wrapper .search-icon {
    position: absolute;
    top: 50%;
    left: 1rem;
    transform: translateY(-50%);
    color: var(--color-placeholder-text);
}

#search-bar {
    width: 100%;
    padding: 0.8rem 1rem 0.8rem 2.8rem;
    font-size: 1rem;
    font-family: var(--font-secondary);
    border: 1px solid var(--color-input-border);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-light);
    background-color: var(--color-input-bg);
    color: var(--color-text-dark);
}
#search-bar:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-input-focus);
}

.btn-filter-toggle {
    flex-shrink: 0;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
}

/* --- NEW IMMERSIVE FILTER MODAL --- */
.filter-modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(46, 40, 34, 0.5);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1900;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0s linear 0.3s;
}
.filter-modal-overlay.active {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}

#filter-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background-color: var(--color-bg-white);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-large);
    border: 1px solid var(--color-border-light);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 90%;
    max-width: 600px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0s linear 0.3s;
}

#filter-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
    transition-delay: 0s;
}

#filter-panel h4 {
    font-family: var(--font-secondary);
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.filter-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 0.75rem 1rem;
}

.filter-option-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    color: var(--color-text-dark);
    white-space: nowrap;
}

.filter-option-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    border: 1px solid var(--color-border-medium);
    border-radius: 3px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-color: var(--color-bg-light);
    cursor: pointer;
    position: relative;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.filter-option-checkbox input[type="checkbox"]:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.filter-option-checkbox input[type="checkbox"]:checked::before {
    content: '\2713';
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 12px;
    color: var(--color-text-light);
}

.filter-option-checkbox label {
    cursor: pointer;
    flex-grow: 1;
    line-height: 1.2;
}

.filter-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.filter-actions .btn {
    font-size: 0.95rem;
    padding: 0.7rem 1.4rem;
}

/* --- Song Grid Styles --- */
.library-grid-section {
    padding: 2.5rem 1rem;
}

.song-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.song-card {
    background-color: var(--color-bg-white);
    border-radius: var(--border-radius-base);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--color-border-light);
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.song-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.song-card .play-pause-btn {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border: none;
    border-radius: 50%;
    width: 45px;
    height: 45px;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
    flex-shrink: 0;
}
.song-card .play-pause-btn:hover {
    background-color: var(--color-secondary);
    transform: scale(1.08);
}
.song-card .fa-pause {
    display: none;
}
.song-card.is-playing .fa-play {
    display: none;
}
.song-card.is-playing .fa-pause {
    display: block;
}

.song-card .track-info {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    overflow: hidden;
    min-width: 0;
    padding-right: 0.5rem;
}

.song-card .title-artist {
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.song-card .track-title {
    font-weight: 600;
    color: var(--color-text-dark);
    font-size: 1rem;
}
.song-card .track-artist {
    font-size: 0.85rem;
    color: var(--color-text-label);
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.song-card .progress-bar-container {
    background-color: var(--color-border);
    height: 6px;
    border-radius: 3px;
    cursor: pointer;
    width: 100%;
}
.song-card .progress-bar-seek {
    background-color: var(--color-accent);
    width: 0%;
    height: 100%;
    border-radius: 3px;
}

.song-card .time-container {
    font-family: var(--font-secondary);
    font-size: 0.8rem;
    color: var(--color-text-label);
    flex-shrink: 0;
    align-self: center; /* Vertically center time */
    min-width: 80px;
    text-align: right;
}

/* Placeholder card specific styles */
.song-card.placeholder-card {
    background-color: var(--color-bg-light-alt);
    border-style: dashed;
    border-color: var(--color-border);
    opacity: 0.8;
    cursor: default;
    position: relative;
}
.song-card.placeholder-card:hover {
    transform: none;
    box-shadow: var(--shadow-light);
}

.song-card.placeholder-card .placeholder-label {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background-color: rgba(176, 141, 87, 0.1);
    color: var(--color-primary);
    font-family: var(--font-secondary);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    z-index: 5;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.song-card.placeholder-card .play-pause-btn {
    background-color: var(--color-border);
    color: var(--color-placeholder-text);
    cursor: not-allowed;
}
.song-card.placeholder-card .play-pause-btn:hover {
    background-color: var(--color-border);
    transform: none;
}
.song-card.placeholder-card .fa-play,
.song-card.placeholder-card .fa-pause {
    display: none;
}
.song-card.placeholder-card .play-pause-btn::before {
    content: '\f001'; /* FontAwesome music icon */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
}

.song-card.placeholder-card .track-title,
.song-card.placeholder-card .track-artist {
    color: var(--color-placeholder-text);
}
.song-card.placeholder-card .progress-bar-container {
    background-color: var(--color-border-light);
}
.song-card.placeholder-card .progress-bar-seek {
    background-color: var(--color-border);
    width: 0%; /* No progress on placeholders */
}
.song-card.placeholder-card .time-container {
    color: var(--color-placeholder-text);
}


/* --- Pagination Controls --- */
.pagination-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.pagination-btn {
    background-color: var(--color-bg-white);
    color: var(--color-primary);
    border: 1px solid var(--color-border-medium);
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-base);
    font-family: var(--font-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-light);
}

.pagination-btn:hover:not(:disabled),
.pagination-btn.page-number.active {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.pagination-btn:disabled {
    background-color: var(--color-bg-light);
    color: var(--color-text-label);
    border-color: var(--color-border);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
    box-shadow: none;
}

.page-numbers {
    display: flex;
    gap: 0.5rem;
}

.page-numbers .pagination-btn {
    min-width: 40px;
    text-align: center;
    justify-content: center;
}

/* --- CUSTOM REFERRAL SECTION --- */
.custom-referral {
    padding: 2.5rem 1rem;
    background-color: var(--color-bg-light-alt);
    border-top: 1px solid var(--color-border);
    text-align: center;
    margin-top: 3rem;
}

.custom-referral-text-content {
    max-width: 700px;
    margin: 0 auto 1.5rem auto;
}

.custom-referral h3 {
    font-family: var(--font-primary);
    font-size: clamp(1.8rem, 5vw, 2.2rem);
    font-weight: 700;
    color: var(--color-accent);
    margin-bottom: 0.8rem;
}

.custom-referral p {
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    max-width: 600px;
    margin: 0.5rem auto;
    line-height: 1.7;
    color: var(--color-text-dark);
}
.custom-referral p a {
    color: var(--color-primary);
    text-decoration: underline;
    font-weight: 500;
}

.custom-referral-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.custom-referral .button {
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius-base);
    font-family: var(--font-secondary);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    cursor: pointer;
    font-size: 1rem;
    white-space: nowrap;
    border: 1px solid transparent;
}

.custom-referral .button.primary {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-light);
}

.custom-referral .button.primary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    box-shadow: var(--shadow-medium);
    transform: translateY(-3px);
}

.custom-referral .button.alt {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-border-medium);
}

.custom-referral .button.alt:hover {
    background-color: rgba(176, 141, 87, 0.07);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-light);
    transform: translateY(-2px);
}