/**
 * Progression Library CSS
 * Public page: /chord-progressions/
 *
 * @package SBN_Course_Player
 * @since 7.7.0
 */

/* ============================================================
   PAGE WRAPPER
   ============================================================ */

.sbn-prog-lib {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px 60px;
}

/* ============================================================
   CONTROLS BAR (filter + sort)
   ============================================================ */

.sbn-prog-lib-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

/* Filter buttons */
.sbn-prog-lib-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    flex: 1;
}

.sbn-prog-lib-filter {
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 20px;
    color: #4b5563;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.03em;
    padding: 5px 14px;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    white-space: nowrap;
}

.sbn-prog-lib-filter:hover {
    background: #e5e7eb;
    color: #111827;
}

.sbn-prog-lib-filter.is-active {
    background: #111827;
    border-color: #111827;
    color: #fff;
}

/* Category-tinted active states */
.sbn-prog-cat-btn-jazz.is-active      { background: #d97706; border-color: #d97706; }
.sbn-prog-cat-btn-blues.is-active     { background: #7c3aed; border-color: #7c3aed; }
.sbn-prog-cat-btn-pop.is-active       { background: #059669; border-color: #059669; }
.sbn-prog-cat-btn-modal.is-active     { background: #0284c7; border-color: #0284c7; }
.sbn-prog-cat-btn-classical.is-active { background: #db2777; border-color: #db2777; }
.sbn-prog-cat-btn-latin.is-active     { background: #ea580c; border-color: #ea580c; }

/* Sort */
.sbn-prog-lib-sort {
    display: flex;
    align-items: center;
    gap: 7px;
    flex-shrink: 0;
}

.sbn-prog-lib-sort-label {
    font-size: 12px;
    font-weight: 600;
    color: #6b7280;
    white-space: nowrap;
}

.sbn-prog-lib-sort-select {
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    background: #fff;
    color: #374151;
    font-size: 12px;
    font-weight: 600;
    padding: 5px 28px 5px 10px;
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7280' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 9px center;
}

.sbn-prog-lib-sort-select:focus {
    outline: 2px solid #2563eb;
    outline-offset: 1px;
}

/* Results count */
.sbn-prog-lib-count {
    font-size: 12px;
    color: #9ca3af;
    margin: 0 0 16px;
    font-weight: 500;
}

/* Empty state */
.sbn-prog-lib-empty {
    text-align: center;
    color: #9ca3af;
    font-size: 15px;
    padding: 40px 0;
}

/* ============================================================
   GRID
   ============================================================ */

.sbn-prog-lib-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

/* ============================================================
   CARDS
   ============================================================ */

.sbn-prog-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-left-width: 4px;
    border-radius: 8px;
    cursor: pointer;
    padding: 16px;
    transition: box-shadow 0.15s, transform 0.15s, border-color 0.15s;
    position: relative;
    outline: none;
}

.sbn-prog-card:hover,
.sbn-prog-card:focus {
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}

.sbn-prog-card:focus {
    outline: 2px solid #2563eb;
    outline-offset: 2px;
}

/* Category left-border + hover tint */
.sbn-prog-cat-jazz      { border-left-color: #f59e0b; }
.sbn-prog-cat-blues     { border-left-color: #8b5cf6; }
.sbn-prog-cat-pop       { border-left-color: #10b981; }
.sbn-prog-cat-modal     { border-left-color: #0ea5e9; }
.sbn-prog-cat-classical { border-left-color: #ec4899; }
.sbn-prog-cat-latin     { border-left-color: #f97316; }

.sbn-prog-card.sbn-prog-cat-jazz:hover      { background: #fffbeb; }
.sbn-prog-card.sbn-prog-cat-blues:hover     { background: #f5f3ff; }
.sbn-prog-card.sbn-prog-cat-pop:hover       { background: #f0fdf4; }
.sbn-prog-card.sbn-prog-cat-modal:hover     { background: #f0f9ff; }
.sbn-prog-card.sbn-prog-cat-classical:hover { background: #fdf2f8; }
.sbn-prog-card.sbn-prog-cat-latin:hover     { background: #fff7ed; }

/* Card top row */
.sbn-prog-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

/* Category badge */
.sbn-prog-card-cat-badge {
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 10px;
}

.sbn-prog-cat-jazz      .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-jazz      { background: #fef3c7; color: #92400e; }
.sbn-prog-cat-blues     .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-blues     { background: #ede9fe; color: #5b21b6; }
.sbn-prog-cat-pop       .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-pop       { background: #d1fae5; color: #065f46; }
.sbn-prog-cat-modal     .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-modal     { background: #e0f2fe; color: #0c4a6e; }
.sbn-prog-cat-classical .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-classical { background: #fce7f3; color: #9d174d; }
.sbn-prog-cat-latin     .sbn-prog-card-cat-badge,
.sbn-prog-card-cat-badge.sbn-prog-cat-latin     { background: #ffedd5; color: #9a3412; }

/* Song count */
.sbn-prog-card-count {
    font-size: 10px;
    font-weight: 600;
    color: #9ca3af;
}

/* Card title */
.sbn-prog-card-title {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
    margin: 0 0 12px;
    line-height: 1.3;
}

/* Numeral chips on cards */
.sbn-prog-card-numerals {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.sbn-prog-numeral-chip {
    display: inline-block;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    padding: 3px 7px;
    font-size: 12px;
    line-height: 1.4;
    color: #374151;
}

/* Roman numerals use the chord symbol font/styling */
.sbn-prog-numeral-chip .sbn-chord-symbol {
    font-size: inherit;
}

/* ============================================================
   MODAL
   ============================================================ */

.sbn-prog-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.sbn-prog-modal-overlay.sbn-prog-modal-visible {
    opacity: 1;
}

.sbn-prog-modal {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    max-width: 680px;
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    position: relative;
    transform: translateY(12px);
    transition: transform 0.25s ease;
}

.sbn-prog-modal-overlay.sbn-prog-modal-visible .sbn-prog-modal {
    transform: translateY(0);
}

.sbn-prog-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255,255,255,0.85);
    border: 1px solid #e5e7eb;
    border-radius: 50%;
    color: #6b7280;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transition: background 0.15s, color 0.15s;
}

.sbn-prog-modal-close:hover {
    background: #fff;
    color: #111827;
}

/* Modal header — category-tinted */
.sbn-prog-modal-header {
    padding: 24px 24px 20px;
    border-bottom: 1px solid #e5e7eb;
    border-radius: 12px 12px 0 0;
}

.sbn-prog-modal-header.sbn-prog-cat-jazz      { background: #fffbeb; }
.sbn-prog-modal-header.sbn-prog-cat-blues     { background: #f5f3ff; }
.sbn-prog-modal-header.sbn-prog-cat-pop       { background: #f0fdf4; }
.sbn-prog-modal-header.sbn-prog-cat-modal     { background: #f0f9ff; }
.sbn-prog-modal-header.sbn-prog-cat-classical { background: #fdf2f8; }
.sbn-prog-modal-header.sbn-prog-cat-latin     { background: #fff7ed; }

.sbn-prog-modal-header-top {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.sbn-prog-modal-cat-badge {
    font-size: 9px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 10px;
}

/* reuse badge color rules from card section above */
.sbn-prog-modal-cat-badge.sbn-prog-cat-jazz      { background: #fef3c7; color: #92400e; }
.sbn-prog-modal-cat-badge.sbn-prog-cat-blues     { background: #ede9fe; color: #5b21b6; }
.sbn-prog-modal-cat-badge.sbn-prog-cat-pop       { background: #d1fae5; color: #065f46; }
.sbn-prog-modal-cat-badge.sbn-prog-cat-modal     { background: #e0f2fe; color: #0c4a6e; }
.sbn-prog-modal-cat-badge.sbn-prog-cat-classical { background: #fce7f3; color: #9d174d; }
.sbn-prog-modal-cat-badge.sbn-prog-cat-latin     { background: #ffedd5; color: #9a3412; }

.sbn-prog-modal-song-count {
    font-size: 11px;
    font-weight: 600;
    color: #6b7280;
    background: #f3f4f6;
    padding: 2px 8px;
    border-radius: 10px;
}

.sbn-prog-modal-title {
    font-size: 22px;
    font-weight: 800;
    color: #111827;
    margin: 0 0 14px;
    line-height: 1.2;
    letter-spacing: -0.01em;
    padding-right: 40px; /* avoid overlap with close button */
}

/* Numeral chips in modal — slightly larger */
.sbn-prog-modal-numerals {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.sbn-prog-modal-numeral {
    font-size: 13px;
    padding: 4px 10px;
    background: rgba(255,255,255,0.8);
    border-color: rgba(0,0,0,0.1);
    font-family: 'SBN Chord', 'Georgia', serif;
    letter-spacing: 0.02em;
}

/* Modal body */
.sbn-prog-modal-body {
    padding: 20px 24px 24px;
}

.sbn-prog-modal-desc {
    font-size: 14px;
    line-height: 1.7;
    color: #374151;
    margin: 0 0 16px;
}

.sbn-prog-modal-genres {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    margin-bottom: 20px;
}

.sbn-prog-modal-genre-tag {
    font-size: 10px;
    font-weight: 600;
    color: #6b7280;
    background: #f3f4f6;
    border: 1px solid #e5e7eb;
    border-radius: 10px;
    padding: 2px 9px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Songs section */
.sbn-prog-modal-songs-section {
    border-top: 1px solid #f3f4f6;
    padding-top: 16px;
}

.sbn-prog-modal-songs-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #9ca3af;
    margin: 0 0 10px;
}

/* Builder section */
.sbn-prog-modal-builder-section {
    border-top: 1px solid #f3f4f6;
    padding-top: 16px;
    margin-bottom: 16px;
}

.sbn-prog-modal-section-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #9ca3af;
    margin: 0 0 10px;
}

.sbn-prog-modal-songs-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sbn-prog-modal-song-link {
    align-items: center;
    border-radius: 6px;
    color: #1d4ed8;
    display: flex;
    font-size: 14px;
    font-weight: 500;
    gap: 7px;
    padding: 6px 8px;
    text-decoration: none;
    transition: background 0.12s;
}

.sbn-prog-modal-song-link:hover {
    background: #eff6ff;
    color: #1e40af;
    text-decoration: none;
}

.sbn-prog-modal-song-link svg {
    flex-shrink: 0;
    opacity: 0.5;
}

.sbn-prog-song-root {
    font-size: 11px;
    color: #9ca3af;
    font-weight: 400;
    margin-left: 2px;
}

.sbn-prog-modal-songs-loading,
.sbn-prog-modal-songs-empty {
    font-size: 13px;
    color: #9ca3af;
    font-style: italic;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 600px) {
    .sbn-prog-lib {
        padding: 0 12px 40px;
    }

    .sbn-prog-lib-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .sbn-prog-card {
        padding: 12px;
    }

    .sbn-prog-card-title {
        font-size: 13px;
    }

    .sbn-prog-modal {
        max-height: 92vh;
    }

    .sbn-prog-modal-title {
        font-size: 18px;
    }
}

@media (max-width: 380px) {
    .sbn-prog-lib-grid {
        grid-template-columns: 1fr;
    }
}