/* ============================================================
   연습 페이지
   ============================================================ */
.practice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.practice-dialog { width: min(720px, calc(100% - 32px)); }
.practice-dialog--wide { width: min(980px, calc(100% - 32px)); }
.practice-dialog .settings-dialog__card { gap: 20px; }
.practice-dialog .setup-scroll { padding-right: 10px; }
.practice-window { display: grid; gap: 20px; min-width: 0; }

/* 큰 주파수 리드아웃(사인파) */
.lab-readout {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    padding: 2px 0 0;
}
.lab-readout__edit {
    display: inline-flex; align-items: baseline; justify-content: center; gap: 6px;
    border: 0; background: transparent; color: var(--color-text);
    border-radius: var(--radius-md); padding: 4px 10px; cursor: pointer;
}
.lab-readout__edit:hover { background: var(--color-surface-2); }
.lab-readout__edit b,
.lab-freq-input {
    font-size: 44px; font-weight: 800; line-height: 1; letter-spacing: 0;
    font-variant-numeric: tabular-nums; color: var(--color-text);
}
.lab-readout__unit { font-size: 16px; font-weight: 700; color: var(--color-muted); }
.lab-freq-input {
    width: min(260px, 100%);
    padding: 6px 10px;
    text-align: center;
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-md);
    background: var(--color-surface);
}
.lab-num-input::-webkit-outer-spin-button,
.lab-num-input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.lab-num-input { appearance: textfield; -moz-appearance: textfield; }

/* 슬라이더 */
.lab-range {
    -webkit-appearance: none; appearance: none;
    width: 100%; height: 6px; border-radius: var(--radius-full);
    background: var(--color-surface-2); outline: none; cursor: pointer;
}
.lab-range::-webkit-slider-thumb {
    -webkit-appearance: none; appearance: none;
    width: 20px; height: 20px; border-radius: 50%;
    background: var(--color-primary); border: 3px solid var(--color-surface);
    box-shadow: var(--shadow-sm); cursor: pointer;
}
.lab-range::-moz-range-thumb {
    width: 20px; height: 20px; border-radius: 50%;
    background: var(--color-primary); border: 3px solid var(--color-surface);
    box-shadow: var(--shadow-sm); cursor: pointer;
}
.lab-range:focus-visible { box-shadow: 0 0 0 3px var(--color-primary-soft); }
.lab-scale {
    display: flex; justify-content: space-between; margin-top: 8px;
    font-size: 11px; color: var(--color-muted); font-variant-numeric: tabular-nums;
}

.practice-band-block { margin-bottom: 0; }
.practice-band-grid { grid-template-columns: repeat(auto-fill, minmax(54px, 1fr)); }
.practice-band-grid .band-chip {
    min-height: 34px;
    padding: 7px 4px;
    font-size: 12px;
}

/* 컨트롤 행 */
.lab-controls { display: flex; align-items: center; gap: 10px; justify-content: center; }
.lab-play { flex: none; min-width: 108px; justify-content: center; }
.lab-play__off { display: none; }
.lab-play[data-playing="1"] .lab-play__on { display: none; }
.lab-play[data-playing="1"] .lab-play__off { display: inline-flex; align-items: center; gap: 6px; }
.lab-play__on { display: inline-flex; align-items: center; gap: 6px; }
.lab-bypass { flex: none; }
.lab-bypass[data-bypass="0"] {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-primary-contrast);
    box-shadow: var(--shadow-primary);
}
.lab-bypass b { color: inherit; }
.lab-bypass[data-bypass="1"] {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
    box-shadow: var(--shadow-sm);
}
.lab-bypass[data-bypass="1"] b { color: inherit; }

/* 핑크노이즈 EQ */
.eq-plugin {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface-2);
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--color-text) 3%, transparent);
}
.eq-plugin__top {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    display: flex; align-items: center; gap: 8px;
    padding: 0;
    border-bottom: 0;
    color: var(--color-text-soft); font-size: 13px; font-weight: 700;
}
.eq-plugin__top span {
    display: inline-flex; align-items: baseline; gap: 4px;
    font-variant-numeric: tabular-nums;
}
.eq-plugin__top b { color: inherit; font-weight: 800; }
.eq-graph {
    display: block;
    width: 100%;
    height: min(44vh, 420px);
    min-height: 280px;
    background: var(--color-surface-2);
    color: var(--color-text-soft);
    cursor: grab;
    touch-action: none;
}
.eq-graph:active { cursor: grabbing; }

.lab-eq-controls {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 24px;
    align-items: end;
}
.lab-field { display: grid; gap: 8px; min-width: 0; }
.lab-field__label {
    display: flex; align-items: baseline; justify-content: space-between; gap: 10px;
    font-size: 13px; color: var(--color-text-soft);
}
.lab-field__label span { font-weight: 700; }
.lab-field__label b {
    font-size: 14px; font-weight: 800; color: var(--color-text);
    font-variant-numeric: tabular-nums; white-space: nowrap;
}
.lab-slider-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 6px;
}
.lab-value-edit,
.lab-value-input {
    width: 62px;
    min-height: 34px;
    padding: 6px 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 13px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    text-align: center;
}
.lab-eq-controls .lab-field:first-child .lab-value-edit,
.lab-eq-controls .lab-field:first-child .lab-value-input { width: 74px; }
.lab-value-edit {
    display: inline-flex;
    align-items: baseline;
    justify-content: center;
    gap: 3px;
    border-color: transparent;
    background: transparent;
    cursor: pointer;
}
.lab-value-edit:hover { background: var(--color-surface-2); color: var(--color-primary); }
.lab-value-edit small { font-size: 10px; font-weight: 700; color: var(--color-muted); }
.lab-value-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }

@media (max-width: 900px) {
    .practice-grid { grid-template-columns: 1fr; }
    .lab-eq-controls { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 16px 18px; }
    .lab-eq-controls .lab-field:first-child { grid-column: 1 / -1; }
    .lab-eq-controls .lab-field {
        grid-template-columns: auto minmax(0, 1fr);
        align-items: center;
        gap: 8px 12px;
    }
    .lab-eq-controls .lab-field__label { justify-content: flex-start; }
    .lab-eq-controls .lab-slider-row { min-width: 0; }
}

@media (max-width: 560px) {
    .practice-dialog,
    .practice-dialog--wide { width: calc(100% - 20px); }
    .practice-dialog .settings-dialog__card { padding: 18px; gap: 16px; }
    .lab-readout__edit b,
    .lab-freq-input { font-size: 36px; }
    .practice-band-grid { grid-template-columns: repeat(auto-fill, minmax(46px, 1fr)); }
    .eq-graph { min-height: 240px; height: 38vh; }
}