/* ============================================
   CLEF MNEMONICS - PAGE SPECIFIC STYLES
   ============================================ */

/* Clef Selector */
.clef-selector {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.clef-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 20px;
    background: var(--card);
    border: 2px solid var(--border);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    min-width: 80px;
}

.clef-btn:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.clef-btn.active {
    background: var(--primary);
    border-color: var(--primary);
}

.clef-btn.active .clef-symbol,
.clef-btn.active .clef-name {
    color: white;
}

.clef-symbol {
    font-size: 28px;
    color: var(--text);
    line-height: 1;
}

.clef-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-light);
    margin-top: 4px;
}

/* Staff Display */
.staff-display {
    padding: 24px;
    background: var(--bg);
    display: flex;
    justify-content: center;
    min-height: 200px;
}

.staff-container {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.staff-svg {
    width: 100%;
    height: 180px;
}

.staff-line {
    stroke: #888;
    stroke-width: 1.5;
}

body.dark-mode .staff-line {
    stroke: #666;
}

.note-circle {
    fill: var(--primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.note-circle:hover {
    fill: #0d9488;
    transform: scale(1.1);
}

.note-circle.highlighted {
    fill: #f59e0b;
}

.note-label {
    font-size: 14px;
    font-weight: 700;
    fill: var(--text);
    text-anchor: middle;
    dominant-baseline: middle;
    pointer-events: none;
}

.clef-display {
    font-size: 60px;
    fill: var(--text);
}

/* Lines/Spaces Labels */
.line-space-label {
    font-size: 10px;
    fill: var(--text-light);
    text-anchor: start;
}

/* Mnemonics Panel */
.mnemonics-panel {
    padding: 20px;
    border-top: 1px solid var(--border);
}

.mnemonics-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.mnemonic-box {
    background: var(--bg);
    border-radius: 12px;
    padding: 16px;
}

.mnemonic-box.lines {
    border-left: 4px solid var(--primary);
}

.mnemonic-box.spaces {
    border-left: 4px solid #f59e0b;
}

.mnemonic-type {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: 8px;
}

.mnemonic-notes {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.mnemonic-note {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 12px;
    background: var(--card);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.mnemonic-note:hover {
    background: rgba(20, 184, 166, 0.15);
}

.mnemonic-note.highlighted {
    background: var(--primary);
}

.mnemonic-note.highlighted .note-letter,
.mnemonic-note.highlighted .note-word {
    color: white;
}

.mnemonic-note .note-letter {
    font-size: 18px;
    font-weight: 800;
    color: var(--text);
}

.mnemonic-note .note-word {
    font-size: 10px;
    color: var(--text-light);
    margin-top: 2px;
}

.mnemonic-phrase-text {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    font-style: italic;
    line-height: 1.5;
}

/* Reference Cards Grid */
.clef-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.clef-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
}

.clef-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(20, 184, 166, 0.15);
}

.clef-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 16px;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.card-clef-symbol {
    font-size: 24px;
    color: var(--primary);
}

.clef-card-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
}

.clef-card-body {
    padding: 16px;
}

.mnemonic-group {
    margin-bottom: 16px;
}

.mnemonic-group:last-child {
    margin-bottom: 0;
}

.group-label {
    display: block;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-light);
    margin-bottom: 6px;
}

.mnemonic-phrase {
    font-size: 14px;
    color: var(--text);
    margin: 0;
    line-height: 1.5;
}

.mnemonic-phrase strong {
    color: var(--primary);
}

.mnemonic-alt {
    font-size: 12px;
    color: var(--text-light);
    margin: 4px 0 0;
    font-style: italic;
}

/* Responsive */
@media (max-width: 768px) {
    .clef-selector {
        justify-content: center;
    }

    .clef-btn {
        padding: 10px 16px;
        min-width: 70px;
    }

    .clef-symbol {
        font-size: 24px;
    }

    .mnemonics-container {
        grid-template-columns: 1fr;
    }

    .staff-display {
        padding: 16px;
    }

    .staff-svg {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .clef-btn {
        padding: 8px 12px;
        min-width: 60px;
    }

    .clef-symbol {
        font-size: 20px;
    }

    .clef-name {
        font-size: 10px;
    }

    .mnemonic-notes {
        flex-wrap: wrap;
        justify-content: center;
    }

    .mnemonic-note {
        padding: 6px 10px;
    }

    .mnemonic-note .note-letter {
        font-size: 16px;
    }
}