/* ── Page navigation pills ───────────────────────────────────────────── */
.page-nav {
    display: flex;
    justify-content: flex-start;
    gap: 6px;
    margin-bottom: 14px;
}
.page-nav-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: #888;
    padding: 5px 16px;
    border-radius: 20px;
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    letter-spacing: 0.02em;
}
.page-nav-btn:hover { color: #ccc; border-color: rgba(255, 255, 255, 0.3); }
.page-nav-btn.active {
    background: linear-gradient(145deg, #e94560, #c73e54);
    border-color: transparent;
    color: #fff;
    font-weight: 600;
}

/* ── Dictionary card ─────────────────────────────────────────────────── */
.dictionary-card {
    background: rgba(255, 255, 255, 0.07);
    border-radius: 20px;
    padding: 32px 24px 40px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
    .dictionary-card {
        background: rgba(255, 255, 255, 0.05);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
}

/* ── Two-column layout: chord sidebar (left) + main content (right) ──── */
.dict-layout {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}
.dict-sidebar {
    flex-shrink: 0;
    width: 150px;
    position: sticky;
    top: 20px;
}
.dict-main {
    flex: 1;
    min-width: 0;
}

/* ── Chord list (left sidebar) ───────────────────────────────────────── */
.dict-chord-list {
    display: flex;
    flex-direction: column;
    max-height: 72vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 6px;
    background: rgba(255, 255, 255, 0.03);
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}
.dict-chord-list::-webkit-scrollbar { width: 4px; }
.dict-chord-list::-webkit-scrollbar-track { background: transparent; }
.dict-chord-list::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.18); border-radius: 2px; }
.dict-chord-list::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.32); }

.dict-chord-item {
    display: block;
    width: 100%;
    padding: 5px 10px;
    border-radius: 7px;
    border: none;
    background: transparent;
    color: #888;
    font-family: 'Poppins', sans-serif;
    font-size: 0.82rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.14s, color 0.14s;
    white-space: nowrap;
}
.dict-chord-item:hover { background: rgba(255, 255, 255, 0.07); color: #ccc; }
.dict-chord-item.active {
    background: rgba(233, 69, 96, 0.18);
    color: #e94560;
    font-weight: 600;
}

/* ── Main controls row (instrument filter) ───────────────────────────── */
.dict-main-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 10px;
}

/* ── Instrument filter dropdown ──────────────────────────────────────── */
.dict-instr-filter {
    position: relative;
    display: inline-block;
}
.dict-instr-btn {
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 8px;
    color: #ccc;
    font-family: 'Poppins', sans-serif;
    font-size: 0.8rem;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    white-space: nowrap;
}
.dict-instr-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}
.dict-instr-panel {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: #1a1a2e;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 8px 12px;
    min-width: 170px;
    z-index: 100;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}
.dict-instr-panel[hidden] { display: none; }
.dict-instr-check {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 2px;
    cursor: pointer;
    color: #ccc;
    font-size: 0.85rem;
    transition: color 0.14s;
    user-select: none;
}
.dict-instr-check:hover { color: #fff; }
.dict-instr-check input[type=checkbox] {
    accent-color: #e94560;
    width: 15px;
    height: 15px;
    cursor: pointer;
    flex-shrink: 0;
}

/* ── Chord name heading ───────────────────────────────────────────────── */
.dict-chord-name-display {
    text-align: center;
    font-size: 2.4rem;
    font-weight: 700;
    color: #e94560;
    margin-bottom: 20px;
    min-height: 2.8rem;
    line-height: 1.15;
}

/* ── Empty-state placeholder ─────────────────────────────────────────── */
.dict-placeholder-msg {
    text-align: center;
    color: #555;
    font-size: 0.9rem;
    padding: 32px 0;
    margin: 0;
}

/* ── Instrument card grid — auto-wraps when columns don't fit ────────── */
/* gap:1px + container background creates hairline dividers between cards */
.dict-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 14px;
    overflow: hidden;
}

/* Piano card: always occupies its own full row so the wide keyboard never
   overflows into adjacent cards. The diagram area scrolls horizontally if
   the viewport is narrower than the keyboard itself. */
.dict-instr-card[data-instr="piano"] {
    grid-column: 1 / -1;
}
.dict-instr-card[data-instr="piano"] .dict-card-diagram {
    overflow-x: auto;
    justify-content: center;
}

/* ── Single instrument card ──────────────────────────────────────────── */
.dict-instr-card {
    display: flex;
    flex-direction: column;
    background: rgba(12, 16, 32, 0.7);
}

/* Card header row */
.dict-card-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 14px 12px 12px;
    background: rgba(255, 255, 255, 0.04);
    text-align: center;
}
.dict-col-icon { font-size: 1.4rem; line-height: 1; }
.dict-col-name {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.13em;
    color: #888;
}

/* Card variant tabs row */
.dict-card-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    justify-content: center;
    align-content: flex-start;
    padding: 10px 8px 6px;
    min-height: 42px;
}
.dict-variant-tab {
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #777;
    font-size: 0.67rem;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    white-space: nowrap;
    transition: color 0.14s, border-color 0.14s, background 0.14s;
}
.dict-variant-tab:hover { color: #ccc; border-color: rgba(255, 255, 255, 0.28); }
.dict-variant-tab.active {
    background: rgba(233, 69, 96, 0.18);
    border-color: rgba(233, 69, 96, 0.7);
    color: #e94560;
    font-weight: 600;
}

/* Card diagram row */
.dict-card-diagram {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 10px 10px 6px;
}

/* Card sheet music row */
.dict-card-sheet {
    padding: 8px 10px 20px;
    min-height: 100px;
}

/* ── Empty cell (no data for this instrument) ────────────────────────── */
.dict-empty-msg {
    color: #444;
    font-size: 0.85rem;
    display: block;
    text-align: center;
    padding: 24px 16px;
}

/* ── Footer ──────────────────────────────────────────────────────────── */
.dict-footer {
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}
.dict-footer-notes {
    font-size: 1.15rem;
    font-weight: 700;
    color: #e94560;
    letter-spacing: 0.1em;
    text-align: center;
}

/* ── Chord pill link (progression view) ──────────────────────────────── */
.chord.chord-link { cursor: pointer; }
.chord.chord-link::after {
    content: '↗';
    position: absolute;
    top: 5px;
    right: 7px;
    font-size: 9px;
    color: rgba(255, 255, 255, 0.35);
    line-height: 1;
    pointer-events: none;
}
.chord.chord-link:hover::after { color: rgba(255, 255, 255, 0.7); }

/* ── Responsive ──────────────────────────────────────────────────────── */
/* Cards already wrap automatically via auto-fit. These breakpoints only
   adjust the sidebar layout and chord list pill style on narrow screens. */
@media (max-width: 900px) {
    .dict-layout {
        flex-direction: column;
    }
    .dict-sidebar {
        width: 100%;
        position: static;
    }
    .dict-chord-list {
        flex-direction: row;
        flex-wrap: wrap;
        max-height: 200px;
        overflow-y: auto;
        gap: 3px;
        padding: 8px;
    }
    .dict-chord-item {
        width: auto;
        flex: 0 0 auto;
        padding: 4px 10px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 20px;
        font-size: 0.78rem;
        text-align: center;
    }
    .dict-instr-panel {
        right: auto;
        left: 0;
    }
}
@media (max-width: 700px) {
    .dictionary-card { padding: 20px 10px 28px; }
    .dict-chord-name-display { font-size: 1.8rem; }
    .dict-card-header { padding: 10px 6px 8px; }
    .dict-card-tabs,
    .dict-card-diagram,
    .dict-card-sheet { padding-left: 6px; padding-right: 6px; }
    .dict-cards-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}