/* Audio Converter — .ac-* namespace */

.ac-tool-wrap {
  max-width: 1060px;
  margin: 0 auto;
  margin: 1.5rem 0;
}

/* ── Error banner ─────────────────────────────── */
.ac-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 10px;
  color: var(--danger);
  font-size: 0.95rem;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
  font-weight: 500;
}
.ac-error:empty { display: none; }

/* ── Mobile RAM warning ───────────────────────── */
.ac-mobile-warn {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 10px;
  color: var(--warning);
  font-size: 0.875rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

/* ── Drop Zone ────────────────────────────────── */
.ac-drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--surface);
}
.ac-drop-zone:hover,
.ac-drop-zone:focus-visible {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
  outline: none;
}
.ac-drop-zone.ac-drag-over {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}

.ac-drop-icon {
  color: var(--primary);
  margin-bottom: 1rem;
}

.ac-drop-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.5rem;
}

.ac-drop-sub {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 0.5rem;
}

.ac-drop-formats {
  display: flex;
  gap: 0.4rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 0.75rem;
}

.ac-format-pill {
  background: rgba(var(--primary-rgb), 0.08);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
  border-radius: 99px;
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  letter-spacing: 0.03em;
}

.ac-browse-link {
  background: none;
  border: none;
  color: var(--primary);
  font-size: inherit;
  cursor: pointer;
  padding: 0;
  font-weight: 500;
  text-decoration: underline;
}
.ac-browse-link:hover { color: var(--primary-dark); }

.ac-file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* ── File card ────────────────────────────────── */
.ac-file-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 1.5rem;
}

.ac-file-icon {
  color: var(--primary);
  flex-shrink: 0;
  display: flex;
}

.ac-file-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.ac-file-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.ac-remove-file-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  border-radius: 6px;
  display: flex;
  align-items: center;
  flex-shrink: 0;
  transition: color 0.15s, background 0.15s;
  min-width: 32px;
  min-height: 32px;
  justify-content: center;
}
.ac-remove-file-btn:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.08);
}

/* ── Section label ────────────────────────────── */
.ac-section-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin: 0 0 0.6rem;
}

/* ── Format selector ──────────────────────────── */
.ac-format-section {
  margin-bottom: 1.25rem;
}

.ac-format-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.ac-format-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  padding: 0.75rem 0.5rem;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: center;
  min-height: 64px;
}
.ac-format-btn:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
}
.ac-format-btn.ac-format-active {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}
.ac-format-btn:disabled { opacity: 0.5; pointer-events: none; }

.ac-format-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}
.ac-format-btn.ac-format-active .ac-format-name { color: var(--primary); }

.ac-format-ext {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ── Options section ──────────────────────────── */
.ac-options {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.ac-option-group {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.ac-option-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.4;
}

/* ── Bitrate selector ─────────────────────────── */
.ac-bitrate-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.ac-bitrate-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 44px;
  text-align: left;
  gap: 0.75rem;
}
.ac-bitrate-btn:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
}
.ac-bitrate-btn.ac-bitrate-active {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}
.ac-bitrate-btn:disabled { opacity: 0.5; pointer-events: none; }

.ac-bitrate-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

.ac-bitrate-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ── Sample rate selector ─────────────────────── */
.ac-samplerate-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.ac-samplerate-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  padding: 0.6rem 0.4rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  min-height: 44px;
}
.ac-samplerate-btn:hover {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.04);
}
.ac-samplerate-btn.ac-samplerate-active {
  border-color: var(--primary);
  background: rgba(var(--primary-rgb), 0.08);
}
.ac-samplerate-btn:disabled { opacity: 0.5; pointer-events: none; }

.ac-samplerate-hz {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}
.ac-samplerate-btn.ac-samplerate-active .ac-samplerate-hz { color: var(--primary); }

.ac-samplerate-note {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* ── Filename row ─────────────────────────────── */
.ac-filename-wrap {
  display: flex;
  align-items: center;
}

.ac-filename-input {
  border-radius: 6px 0 0 6px !important;
  border-right: none !important;
  flex: 1;
  min-width: 0;
}

.ac-filename-ext {
  display: flex;
  align-items: center;
  padding: 0 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0 6px 6px 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  height: 44px;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Actions ──────────────────────────────────── */
.ac-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding-top: 0.25rem;
}

.ac-convert-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 48px;
  font-size: 1rem;
  font-weight: 700;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.ac-convert-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.ac-clear-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
  min-height: 44px;
}
.ac-clear-btn:hover { color: var(--danger); background: rgba(239, 68, 68, 0.06); }
.ac-clear-btn:disabled { opacity: 0.4; pointer-events: none; }

/* ── Privacy badge ────────────────────────────── */
.ac-privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--success);
  font-weight: 500;
  margin-top: 0.25rem;
}

/* ── Progress ─────────────────────────────────── */
.ac-progress-wrap {
  margin-top: 1.75rem;
  text-align: center;
}

.ac-progress-track {
  background: var(--border);
  border-radius: 99px;
  height: 10px;
  overflow: hidden;
  margin-bottom: 0.75rem;
}

.ac-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 99px;
  width: 0%;
  transition: width 0.35s ease;
}

.ac-progress-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

/* ── Result card ──────────────────────────────── */
.ac-result {
  margin-top: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--success);
  border-radius: 14px;
  padding: 1.75rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.1rem;
}

.ac-result-icon { color: var(--success); }

.ac-result-stats {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.6;
}

.ac-result-stats .ac-stat-line {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.ac-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  min-height: 48px;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  text-decoration: none;
}

.ac-convert-again-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  cursor: pointer;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  transition: color 0.15s;
}
.ac-convert-again-btn:hover { color: var(--text); }

/* ── Status messages ──────────────────────────── */
.ac-status-wrap {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.ac-status {
  padding: 0.65rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  animation: tool-status-in 0.2s ease;
  line-height: 1.45;
}

.ac-status-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.25);
}
.ac-status-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.25);
}
.ac-status-info {
  background: rgba(var(--primary-rgb), 0.08);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.2);
}



/* ── Dark mode ────────────────────────────────── */
[data-theme="dark"] .ac-drop-zone { background: rgba(255, 255, 255, 0.02); }
[data-theme="dark"] .ac-drop-zone:hover,
[data-theme="dark"] .ac-drop-zone:focus-visible,
[data-theme="dark"] .ac-drop-zone.ac-drag-over { background: rgba(var(--primary-rgb), 0.06); }
[data-theme="dark"] .ac-file-card { background: rgba(255, 255, 255, 0.03); }
[data-theme="dark"] .ac-format-btn,
[data-theme="dark"] .ac-bitrate-btn,
[data-theme="dark"] .ac-samplerate-btn { background: rgba(255, 255, 255, 0.03); }
[data-theme="dark"] .ac-result { background: rgba(16, 185, 129, 0.05); }
[data-theme="dark"] .ac-filename-ext { background: rgba(255, 255, 255, 0.04); }

/* ── Mobile ───────────────────────────────────── */
@media (max-width: 640px) {
  .ac-drop-zone { padding: 2rem 1rem; }
  .ac-format-grid { grid-template-columns: repeat(5, 1fr); gap: 0.35rem; }
  .ac-format-btn { padding: 0.6rem 0.2rem; min-height: 56px; }
  .ac-format-name { font-size: 0.78rem; }
  .ac-format-ext { font-size: 0.62rem; }
  .ac-bitrate-btn { flex-direction: column; align-items: flex-start; gap: 0.15rem; }
  .ac-samplerate-row { gap: 0.4rem; }
  .ac-samplerate-hz { font-size: 0.78rem; }
  .ac-actions { flex-direction: column; align-items: stretch; }
  .ac-convert-btn, .ac-clear-btn { width: 100%; justify-content: center; }
  .ac-result { padding: 1.25rem; }
  .ac-download-btn { width: 100%; justify-content: center; }
}