.tap-code-tool {
    --tap-code-panel: #ffffff;
    --tap-code-panel-soft: #fcfcfd;
    --tap-code-text: #101418;
    --tap-code-muted: #5a6872;
    --tap-code-border: #d8dee4;
    --tap-code-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    --tap-code-accent: #0b84ff;
    --tap-code-accent-soft: rgba(11, 132, 255, 0.1);
    --tap-code-label-bg: #dbe7f5;
    --tap-code-label-border: #b8c6da;
    --tap-code-success: #2c7a39;
    --tap-code-success-soft: #eef8ef;
    --tap-code-warning: #8a631f;
    --tap-code-warning-soft: #fff5e3;
    color: var(--tap-code-text);
    font-family: "Inter", var(--font-sans);
    padding-top: 0;
}

html[data-theme="dark"] .tap-code-tool {
    --tap-code-panel: #181b1f;
    --tap-code-panel-soft: #20242a;
    --tap-code-text: #f1f3f5;
    --tap-code-muted: #9aa2ab;
    --tap-code-border: #2a3037;
    --tap-code-accent: #6ea8ff;
    --tap-code-accent-soft: rgba(110, 168, 255, 0.12);
    --tap-code-label-bg: rgba(110, 168, 255, 0.14);
    --tap-code-label-border: rgba(110, 168, 255, 0.24);
    --tap-code-success: #9adca5;
    --tap-code-success-soft: rgba(64, 124, 74, 0.22);
    --tap-code-warning: #f3d18b;
    --tap-code-warning-soft: rgba(138, 99, 31, 0.18);
}

.tap-code-tool * {
    box-sizing: border-box;
}

.tap-code-tool .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.tap-code-panel {
    display: grid;
    gap: 12px;
}

.tap-code-mini {
    margin: 0;
    font-size: 0.88rem;
    color: var(--tap-code-muted);
    line-height: 1.5;
}

.tap-code-mini strong,
.tap-code-pill strong {
    color: var(--tap-code-text);
}

.tap-code-inline {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    padding: 0 8px;
    border: 1px solid var(--tap-code-border);
    border-radius: 999px;
    background: var(--tap-code-panel);
    color: var(--tap-code-text);
    font-family: var(--tap-code-mono);
    font-size: 0.84em;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.tap-code-square-wrap {
    overflow-x: auto;
    padding-bottom: 2px;
}

.tap-code-square-grid {
    display: grid;
    grid-template-columns: 40px repeat(5, minmax(44px, 1fr));
    gap: 6px;
    min-width: 310px;
    margin-top: 2px;
}

.tap-code-square-cell,
.tap-code-square-label {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    border-radius: 12px;
    border: 1px solid var(--tap-code-border);
    background: var(--tap-code-panel);
    color: var(--tap-code-text);
    font-weight: 700;
    font-size: 0.9rem;
    text-align: center;
    line-height: 1.15;
}

.tap-code-square-cell {
    flex-direction: column;
    gap: 3px;
    padding: 6px 4px;
    transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.tap-code-square-cell.is-active {
    border-color: rgba(11, 132, 255, 0.55);
    background: linear-gradient(180deg, #eef4fb, #dde7f6);
    box-shadow: inset 0 0 0 1px rgba(127, 155, 196, 0.45);
    transform: translateY(-1px);
}

html[data-theme="dark"] .tap-code-square-cell.is-active {
    background: linear-gradient(180deg, rgba(110, 168, 255, 0.18), rgba(110, 168, 255, 0.08));
    box-shadow: inset 0 0 0 1px rgba(110, 168, 255, 0.35);
}

.tap-code-square-cell sub {
    position: relative;
    bottom: -0.1em;
    font-family: var(--tap-code-mono);
    font-size: 0.68em;
    font-weight: 800;
    line-height: 1;
    color: var(--tap-code-muted);
}

.tap-code-square-label {
    background: var(--tap-code-label-bg);
    border-color: var(--tap-code-label-border);
    color: var(--tap-code-text);
    font-size: 0.84rem;
}

.tap-code-tool .cipher-option-row.is-disabled {
    opacity: 0.55;
}

.tap-code-audio-panel {
    display: grid;
    gap: 12px;
}

.tap-code-audio-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.tap-code-audio-btn {
    min-height: 48px;
}

.tap-code-audio-btn.is-playing {
    background: var(--tap-code-accent-soft);
    border-color: rgba(11, 132, 255, 0.32);
}

html[data-theme="dark"] .tap-code-audio-btn.is-playing {
    border-color: rgba(110, 168, 255, 0.38);
}

.tap-code-audio-stop {
    background: var(--tap-code-panel);
}

.tap-code-select-wrap {
    display: grid;
    gap: 6px;
}

.tap-code-select-label {
    font-size: 0.9rem;
    line-height: 1.3;
    color: var(--tap-code-muted);
    font-weight: 600;
}

.tap-code-select {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    padding: 0 12px;
    border: 1px solid var(--tap-code-border);
    border-radius: 12px;
    background: var(--tap-code-panel);
    color: var(--tap-code-text);
    font: inherit;
    outline: none;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.tap-code-select:focus {
    border-color: rgba(11, 132, 255, 0.55);
    box-shadow: 0 0 0 3px rgba(11, 132, 255, 0.1);
}

.tap-code-playback-readout {
    gap: 8px;
}

.tap-code-playback-note {
    margin-top: -2px;
}

.tap-code-textarea {
    width: 100%;
    min-width: 0;
    min-height: 240px;
    padding: 12px;
    border: 1px solid var(--tap-code-border);
    border-radius: 14px;
    font-family: var(--tap-code-mono);
    font-size: 0.94rem;
    line-height: 1.48;
    background: var(--tap-code-panel);
    color: var(--tap-code-text);
    outline: none;
    resize: vertical;
    transition: border-color 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.tap-code-textarea[readonly] {
    background: var(--tap-code-panel-soft);
}

.tap-code-textarea::placeholder {
    color: var(--tap-code-muted);
}

.tap-code-textarea:focus,
.tap-code-button:focus-visible {
    border-color: rgba(11, 132, 255, 0.55);
    box-shadow: 0 0 0 3px rgba(11, 132, 255, 0.1);
    outline: none;
}

.tap-code-button[disabled] {
    opacity: 0.62;
    cursor: not-allowed;
}

.tap-code-copy-inline.is-copied {
    color: var(--tap-code-success);
    border-color: rgba(44, 122, 57, 0.3);
    background: var(--tap-code-success-soft);
}

.tap-code-copy-inline.is-failed {
    color: var(--tap-code-warning);
    border-color: rgba(138, 99, 31, 0.32);
    background: var(--tap-code-warning-soft);
}

@media (min-width: 1024px) {
    .tap-code-square-grid {
        gap: 5px;
    }

    .tap-code-square-cell,
    .tap-code-square-label {
        min-height: 40px;
        border-radius: 10px;
        font-size: 0.84rem;
    }
}

@media (max-width: 560px) {
    .tap-code-textarea {
        min-height: 220px;
    }

    .tap-code-square-grid {
        grid-template-columns: 34px repeat(5, minmax(40px, 1fr));
        min-width: 274px;
        gap: 5px;
    }

    .tap-code-square-cell,
    .tap-code-square-label {
        min-height: 38px;
        border-radius: 10px;
        font-size: 0.8rem;
    }

    .tap-code-audio-actions {
        grid-template-columns: 1fr;
    }
}