/* ===========================================================
   EverAI Tools — Client-side audio/video tools
   =========================================================== */

/* ─── Layout ─── */
.tools-page {
    min-height: calc(100vh - 120px);
    padding-bottom: 4rem;
}

.tools-hero {
    text-align: center;
    padding: 3rem 1rem 2rem;
}

.tools-hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.tools-hero h1 .highlight {
    color: #2871de;
}

.tools-hero .tools-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.6;
}

.tools-privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 1rem;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #059669;
    background: rgba(5, 150, 105, 0.08);
    border: 1px solid rgba(5, 150, 105, 0.2);
}

[data-bs-theme="dark"] .tools-privacy-badge {
    color: #34d399;
    background: rgba(52, 211, 153, 0.1);
    border-color: rgba(52, 211, 153, 0.2);
}

/* ─── Drop Zone / Upload Area ─── */
.tools-dropzone {
    max-width: 680px;
    margin: 0 auto 2rem;
    padding: 4rem 2rem;
    border: 2px dashed var(--border-color);
    border-radius: 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
    background: var(--bg-card);
}

.tools-dropzone:hover {
    border-color: #2871de;
    background: rgba(40, 113, 222, 0.04);
}

[data-bs-theme="dark"] .tools-dropzone:hover {
    background: rgba(40, 113, 222, 0.08);
}

.tools-dropzone-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    color: var(--text-muted);
}

.tools-dropzone-text {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.tools-dropzone-hint {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.tools-dropzone-btn {
    display: inline-block;
    margin-top: 1rem;
    padding: 10px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
    background: #2871de;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s;
}

.tools-dropzone-btn:hover {
    opacity: 0.9;
}

/* ─── Full-page drag overlay ─── */
.tools-drag-overlay {
    position: fixed;
    inset: 0;
    z-index: 1080;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(15, 23, 42, 0.55);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    /* The overlay is purely visual; the drop is handled at window level. */
    pointer-events: none;
}

.tools-page.dragging-file .tools-drag-overlay {
    display: flex;
    animation: drag-overlay-in 0.15s ease;
}

@keyframes drag-overlay-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.tools-drag-overlay-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: min(560px, 100%);
    padding: 3rem 2rem;
    border: 2px dashed rgba(255, 255, 255, 0.55);
    border-radius: 20px;
    background: rgba(40, 113, 222, 0.12);
    color: #fff;
    text-align: center;
}

.tools-drag-overlay-icon {
    width: 56px;
    height: 56px;
    color: #fff;
    animation: drag-overlay-bounce 1s ease-in-out infinite;
}

@keyframes drag-overlay-bounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-8px); }
}

.tools-drag-overlay-text {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

/* ─── File Info (shown after file selected) ─── */
.tools-file-info {
    display: none;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.tools-file-info.show {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tools-file-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg-tertiary);
    color: var(--text-muted);
}

.tools-file-details {
    flex: 1;
    min-width: 0;
}

.tools-file-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tools-file-size {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.tools-file-remove {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.2s;
}

.tools-file-remove:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ─── Options Panel ─── */
.tools-options {
    display: none;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    padding: 0.5rem 1.5rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.tools-options.show {
    display: block;
}

/* Settings-style rows: label left, control right, divider between rows */
.tools-options-row {
    display: flex;
    flex-direction: column;
}

.tools-options-group {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 8px 0;
}

.tools-options-group + .tools-options-group {
    border-top: 1px solid var(--border-color);
}

/* Disabled row (e.g. Bitrate for lossless/VBR formats) — dimmed, not clickable */
.tools-options-group.is-disabled {
    opacity: 0.5;
    pointer-events: none;
}

.tools-options-group label {
    margin: 0;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tools-options .tools-dropdown-trigger {
    min-width: 120px;
    padding: 8px 14px;
    justify-content: space-between;
}

/* ── Toggle switch (e.g. Normalize) ── */
.tools-switch {
    position: relative;
    display: inline-flex;
    align-items: center;
    margin: 0;
    cursor: pointer;
    padding: 8px 0px;
}

.tools-switch input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tools-switch-track {
    position: relative;
    width: 40px;
    height: 22px;
    border-radius: 999px;
    background: var(--border-color);
    transition: background 0.2s;
}

.tools-switch-track::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.tools-switch input:checked + .tools-switch-track {
    background: #2871de;
}

.tools-switch input:checked + .tools-switch-track::after {
    transform: translateX(18px);
}

/* ─── Video preview + metadata (video-to-audio) ─── */
.tools-video-preview {
    display: none;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    text-align: center;
}

.tools-video-preview.show {
    display: block;
}

.tools-video-el {
    display: block;
    width: 100%;
    max-height: 320px;
    border-radius: 12px;
    background: #000;
    border: 1px solid var(--border-color);
}

.tools-video-meta {
    margin-top: 0.625rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

/* ── Trim segment row (start/end inputs) ── */
.tools-options-group.tools-trim-row {
    justify-content: flex-end;
}

.tools-trim-times {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.tools-trim-times > div {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tools-trim-times label {
    margin: 0;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.tools-trim-times input {
    width: 90px;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.85rem;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* ── Result audio preview (nghe thử trước khi tải) ── */
.tools-result-audio {
    display: block;
    width: 100%;
    max-width: 360px;
    margin: 0 auto 1.25rem;
}

/* ─── Waveform (audio-cutter) ─── */
.tools-waveform-container {
    display: none;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    padding: 1.25rem;
    border-radius: 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
}

.tools-waveform-container.show {
    display: block;
}

#tools-waveform {
    width: 100%;
    min-height: 100px;
    padding: 0.5rem 0.75rem;
    border-radius: 10px;
    background: var(--bg-secondary);
    overflow: hidden;
}

.tools-waveform-times {
    display: flex;
    justify-content: space-between;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

.tools-waveform-times input {
    width: 90px;
    padding: 4px 8px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.85rem;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

/* (fade styles moved to audio-cutter section) */

/* ─── Action Button ─── */
.tools-actions {
    display: none;
    max-width: 640px;
    margin: 0 auto 2rem;
    text-align: center;
}

.tools-actions.show {
    display: block;
}

.tools-process-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 36px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    color: #fff;
    background: #059669;
    border: none;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
}

.tools-process-btn:hover {
    opacity: 0.92;
}

.tools-process-btn:active {
    transform: scale(0.98);
}

.tools-process-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ─── Progress ─── */
.tools-progress {
    display: none;
    max-width: 640px;
    margin: 0 auto 2rem;
    text-align: center;
}

.tools-progress.show {
    display: block;
}

.tools-progress-bar-track {
    height: 8px;
    border-radius: 4px;
    background: var(--bg-tertiary);
    overflow: hidden;
    margin-bottom: 0.75rem;
}

.tools-progress-bar-fill {
    height: 100%;
    border-radius: 4px;
    background: #2871de;
    transition: width 0.3s ease;
    width: 0%;
}

.tools-progress-bar-fill.indeterminate {
    width: 100% !important;
    animation: progress-pulse 1.5s ease-in-out infinite;
}

@keyframes progress-pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.tools-progress-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ─── Result / Download ─── */
.tools-result {
    display: none;
    max-width: 640px;
    margin: 0 auto 2rem;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    background: rgba(5, 150, 105, 0.06);
    border: 1px solid rgba(5, 150, 105, 0.2);
}

[data-bs-theme="dark"] .tools-result {
    background: rgba(52, 211, 153, 0.06);
    border-color: rgba(52, 211, 153, 0.15);
}

.tools-result.show {
    display: block;
}

.tools-result-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 0.75rem;
    color: #059669;
}

[data-bs-theme="dark"] .tools-result-icon {
    color: #34d399;
}

.tools-result-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

/* File-to-download chip in the result panel */
.tools-result-file {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    max-width: 360px;
    margin-bottom: 1.25rem;
    padding: 0.625rem 1rem;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    text-align: left;
}

.tools-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    color: #fff;
    background: #059669;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: opacity 0.2s;
}

.tools-download-btn:hover {
    opacity: 0.9;
    color: #fff;
    text-decoration: none;
}

.tools-another-btn {
    display: inline-block;
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: #2871de;
    cursor: pointer;
    background: none;
    border: none;
    text-decoration: underline;
}

/* ─── Error ─── */
.tools-error {
    display: none;
    max-width: 640px;
    margin: 0 auto 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.06);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #dc2626;
    font-size: 0.9rem;
    text-align: center;
}

[data-bs-theme="dark"] .tools-error {
    background: rgba(239, 68, 68, 0.1);
    color: #f87171;
}

.tools-error.show {
    display: block;
}

/* ─── SEO Content Section ─── */
.tools-content {
    max-width: 800px;
    margin: 3rem auto 0;
    padding: 0 1rem;
}

.tools-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

/* Steps — all 4 on a single row (desktop) */
.tools-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 3rem;
}

.tools-step {
    position: relative;
    padding: 1.5rem 1rem;
    border-radius: 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.tools-step:hover {
    border-color: #2871de;
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.tools-step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    font-size: 0.9rem;
    font-weight: 700;
    color: #fff;
    background: #2871de;
    margin-bottom: 0.875rem;
}

.tools-step-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* FAQ */
.tools-faq {
    margin-bottom: 3rem;
}

.tools-faq-item {
    border-bottom: 1px solid var(--border-color);
}

.tools-faq-item:first-child {
    border-top: 1px solid var(--border-color);
}

.tools-faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    gap: 1rem;
}

.tools-faq-question svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    transition: transform 0.2s;
}

.tools-faq-item.open .tools-faq-question svg {
    transform: rotate(180deg);
}

.tools-faq-answer {
    display: none;
    padding: 0 0 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.tools-faq-item.open .tools-faq-answer {
    display: block;
}

/* ─── CTA Funnel ─── */
.tools-cta {
    max-width: 640px;
    margin: 0 auto 3rem;
    padding: 1.5rem 2rem;
    border-radius: 12px;
    text-align: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}

.tools-cta-text {
    font-size: 1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tools-cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    color: #fff;
    background: #2871de;
    text-decoration: none;
    transition: opacity 0.2s;
}

.tools-cta-btn:hover {
    opacity: 0.9;
    color: #fff;
    text-decoration: none;
}

/* ─── Internal Links ─── */
.tools-internal-links {
    max-width: 800px;
    margin: 0 auto 3rem;
    padding: 0 1rem;
}

.tools-internal-links h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.tools-link-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.tools-link-card {
    padding: 1rem 1.25rem;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    text-decoration: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.tools-link-card:hover {
    border-color: #2871de;
    box-shadow: var(--shadow-sm);
    text-decoration: none;
}

.tools-link-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tools-link-card-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ─── Audio Cutter Wide Layout ─── */
[data-tool="audio-cutter"] .tools-waveform-container {
    max-width: calc(100% - 2rem);
    width: 100%;
    margin-left: auto;
    margin-right: auto;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
}

[data-tool="audio-cutter"] .tools-waveform-times input:focus {
    outline: none;
    border-color: #2871de;
    box-shadow: 0 0 0 3px rgba(40, 113, 222, 0.12);
}

/* Playback toolbar */
[data-tool="audio-cutter"] .tools-playback-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 0.75rem;
    padding: 0.5rem 0;
}

[data-tool="audio-cutter"] .tools-playback-left,
[data-tool="audio-cutter"] .tools-playback-right {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

[data-tool="audio-cutter"] .tools-icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-input);
    color: var(--text-primary);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

[data-tool="audio-cutter"] .tools-icon-btn:hover {
    border-color: #2871de;
    background: rgba(40, 113, 222, 0.08);
}

[data-tool="audio-cutter"] .tools-icon-btn-sm {
    width: 30px;
    height: 30px;
}

[data-tool="audio-cutter"] .tools-loop-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-input);
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}

[data-tool="audio-cutter"] .tools-loop-toggle input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

[data-tool="audio-cutter"] .tools-loop-toggle:has(input:checked) {
    border-color: #2871de;
    color: #2871de;
    background: rgba(40, 113, 222, 0.08);
}

[data-tool="audio-cutter"] .tools-playback-time {
    font-size: 0.85rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--text-secondary);
    min-width: 140px;
    text-align: center;
}

[data-tool="audio-cutter"] .tools-zoom-level {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    min-width: 24px;
    text-align: center;
}

/* Controls row */
[data-tool="audio-cutter"] .tools-waveform-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

[data-tool="audio-cutter"] .tools-waveform-times {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-top: 0;
}

[data-tool="audio-cutter"] .tools-waveform-times>div {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

[data-tool="audio-cutter"] .tools-waveform-times label {
    margin-bottom: 0;
    font-weight: 600;
}

/* Cutter options row */
[data-tool="audio-cutter"] .tools-cutter-options {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* ── Fade in / Fade out controls ── */
[data-tool="audio-cutter"] .tools-fade-group {
    display: flex;
    gap: 1rem;
}

[data-tool="audio-cutter"] .tools-fade-item {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

/* Toggle label (checkbox + text) */
[data-tool="audio-cutter"] .tools-fade-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    user-select: none;
    margin: 0;
}

[data-tool="audio-cutter"] .tools-fade-toggle input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    position: relative;
    flex-shrink: 0;
}

[data-tool="audio-cutter"] .tools-fade-toggle input[type="checkbox"]:checked {
    background: #2871de;
    border-color: #2871de;
}

[data-tool="audio-cutter"] .tools-fade-toggle input[type="checkbox"]:checked::after {
    content: '';
    position: absolute;
    left: 3px;
    top: 0px;
    width: 5px;
    height: 9px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* Slider (hidden until checkbox is checked) */
[data-tool="audio-cutter"] .tools-fade-slider {
    display: flex;
    align-items: center;
    gap: 6px;
    max-width: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-width 0.25s ease, opacity 0.2s ease;
}

[data-tool="audio-cutter"] .tools-fade-slider.active {
    max-width: 140px;
    opacity: 1;
}

/* Custom range input */
[data-tool="audio-cutter"] .tools-fade-slider input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 90px;
    height: 6px;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
    background: linear-gradient(
        to right,
        #2871de 0%, #2871de var(--fill, 50%),
        var(--border-color) var(--fill, 50%), var(--border-color) 100%
    );
    transition: background 0.1s;
}

[data-tool="audio-cutter"] .tools-fade-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #2871de;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

[data-tool="audio-cutter"] .tools-fade-slider input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 1px 6px rgba(40, 113, 222, 0.3);
}

[data-tool="audio-cutter"] .tools-fade-slider input[type="range"]::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #2871de;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
    cursor: pointer;
}

[data-tool="audio-cutter"] .tools-fade-slider input[type="range"]::-moz-range-track {
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
}

[data-tool="audio-cutter"] .tools-fade-slider input[type="range"]::-moz-range-progress {
    height: 6px;
    border-radius: 3px;
    background: #2871de;
}

[data-tool="audio-cutter"] .tools-fade-slider-val {
    font-size: 0.8rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: #2871de;
    min-width: 28px;
}

[data-tool="audio-cutter"] .tools-format-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

[data-tool="audio-cutter"] .tools-format-option label {
    margin-bottom: 0;
    font-weight: 600;
}

/* ── Custom dropdown (reusable) ── */
.tools-dropdown {
    position: relative;
    display: inline-block;
}

.tools-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-input);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
    white-space: nowrap;
}

.tools-dropdown-trigger:hover {
    border-color: #2871de;
}

.tools-dropdown.open .tools-dropdown-trigger {
    border-color: #2871de;
    box-shadow: 0 0 0 3px rgba(40, 113, 222, 0.12);
}

.tools-dropdown-arrow {
    color: var(--text-muted);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.tools-dropdown.open .tools-dropdown-arrow {
    transform: rotate(180deg);
}

.tools-dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 100%;
    margin: 0;
    padding: 4px;
    list-style: none;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
    z-index: 50;
    opacity: 0;
    transform-origin: top center;
}

[data-bs-theme="dark"] .tools-dropdown-menu {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.2);
}

.tools-dropdown.open .tools-dropdown-menu {
    display: block;
    animation: dropdown-in 0.15s ease forwards;
}

@keyframes dropdown-in {
    from { opacity: 0; transform: translateX(-50%) translateY(-4px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.tools-dropdown-menu li {
    padding: 7px 14px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.1s;
}

.tools-dropdown-menu li:hover {
    background: rgba(40, 113, 222, 0.08);
}

.tools-dropdown-menu li.selected {
    color: #2871de;
    background: rgba(40, 113, 222, 0.1);
}

[data-bs-theme="dark"] .tools-dropdown-menu li:hover {
    background: rgba(40, 113, 222, 0.15);
}

[data-bs-theme="dark"] .tools-dropdown-menu li.selected {
    background: rgba(40, 113, 222, 0.2);
}

/* Keyboard hints */
[data-tool="audio-cutter"] .tools-keyboard-hint {
    text-align: center;
    margin-top: 0.75rem;
    font-size: 0.75rem;
    color: var(--text-muted);
}

[data-tool="audio-cutter"] .tools-keyboard-hint kbd {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-secondary);
}

/* ─── Audio Cutter: compact editing workspace ───
   Once a file is loaded (`.has-file`, toggled in tools.js), collapse the
   marketing hero into a slim header and tighten the vertical rhythm so the
   waveform, controls and the primary "Cắt audio" button all stay above the
   fold — no scrolling needed to reach the call to action. */
[data-tool="audio-cutter"].has-file .tools-hero {
    padding: 1.25rem 1rem 0.25rem;
}

[data-tool="audio-cutter"].has-file .tools-hero h1 {
    font-size: 1.4rem;
    margin-bottom: 0;
}

[data-tool="audio-cutter"].has-file .tools-hero .tools-subtitle,
[data-tool="audio-cutter"].has-file .tools-hero .tools-privacy-badge {
    display: none;
}

[data-tool="audio-cutter"].has-file .tools-file-info {
    margin-bottom: 1rem;
    padding: 0.75rem 1.25rem;
}

[data-tool="audio-cutter"].has-file .tools-waveform-container {
    margin-bottom: 1rem;
}

[data-tool="audio-cutter"].has-file .tools-actions {
    margin-bottom: 1.5rem;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .tools-hero {
        padding: 2rem 0.5rem 1.5rem;
    }

    .tools-hero h1 {
        font-size: 1.6rem;
    }

    .tools-dropzone {
        padding: 2rem 1rem;
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    .tools-file-info,
    .tools-options,
    .tools-waveform-container,
    .tools-actions,
    .tools-progress,
    .tools-result,
    .tools-error {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    .tools-steps {
        grid-template-columns: 1fr 1fr;
    }

    .tools-cta {
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    [data-tool="audio-cutter"] .tools-waveform-container {
        max-width: calc(100% - 1rem);
        margin-left: 0.5rem;
        margin-right: 0.5rem;
    }

    [data-tool="audio-cutter"] .tools-playback-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    [data-tool="audio-cutter"] .tools-waveform-controls {
        gap: 1rem;
        flex-direction: column;
    }

    [data-tool="audio-cutter"] .tools-waveform-times {
        flex-direction: row;
        width: 100%;
        justify-content: space-around;
        gap: 1rem;
    }

    [data-tool="audio-cutter"] .tools-cutter-options {
        justify-content: center;
        gap: 1rem;
    }

    [data-tool="audio-cutter"] .tools-fade-group {
        flex-direction: column;
        gap: 0.5rem;
    }

    [data-tool="audio-cutter"] .tools-keyboard-hint {
        display: none;
    }
}

@media (max-width: 480px) {
    .tools-steps {
        grid-template-columns: 1fr;
    }
}