main.container:has(.tool-nav) {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}

.tool-nav {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 0;
  padding-top: 10px;
}
.tool-nav .button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2) !important;
  font-weight: 700;
  font-size: 14px;
  white-space: nowrap;
  margin: 0;
  padding: 8px 15px 8px 11px !important;
  border-radius: 999px !important;
  border: 1px solid var(--border) !important;
  background: var(--surface) !important;
  transition: color 0.15s, border-color 0.15s, background 0.15s, box-shadow 0.15s;
}
.tool-nav .button:hover {
  color: var(--text) !important;
  border-color: var(--border-strong) !important;
  background: var(--bg-subtle) !important;
  box-shadow: var(--ss-shadow-sm);
}
.tool-nav .button i {
  transition: transform 0.18s ease;
  color: var(--text-3) !important;
}
.tool-nav .button:hover i {
  color: var(--accent) !important;
}
.tool-nav .button:first-child:hover i.fa-arrow-left {
  transform: translateX(-3px);
}

.tool-workbench ~ .tools-section,
.tools-section:has(.tools-section-title) {
  text-align: center;
  padding: 22px 0 6px;
}
.tools-section-title {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);

  background: none;
  -webkit-text-fill-color: currentColor;
  -webkit-background-clip: border-box;
  background-clip: border-box;
}
.tools-section-title i {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  flex: none;
  font-size: 26px;
  color: var(--accent) !important;
  background: var(--accent-soft);
  margin: 0 !important;
}
.tools-section-description {
  color: var(--text-2);
  font-size: 17px;
  margin: 10px auto 0;
  max-width: 520px;
  line-height: 1.5;
}

.tool-workbench ~ .card,
.tools-section + .tool-workbench + .card {
  background: transparent;
  box-shadow: none;
  padding: 0;
  margin: 24px auto 0;
  max-width: 820px;
}
.card .alert,
.card .alert-info {
  border-radius: var(--r-md);
}

.dropzone {
  margin: 30px auto 0;
  max-width: 760px;
  border: 2px dashed var(--border-strong) !important;
  border-radius: var(--r-xl) !important;
  background: var(--surface-2) !important;
  padding: 56px 30px !important;
  text-align: center;
  transition: border-color 0.18s, background 0.18s;
}
.dropzone::before {
  display: none !important;
}
.dropzone:hover,
.dropzone.is-hovered,
.dropzone.drag-over {
  border-color: var(--accent) !important;
  background: var(--accent-soft) !important;
}
.dropzone-icon,
.dropzone .dropzone-icon {
  position: relative;
  width: 70px;
  height: 70px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-top: 0 !important;
  margin-bottom: 20px !important;
  margin-left: auto !important;
  margin-right: auto !important;
  color: var(--accent);
  background: var(--accent-soft);
  font-size: 30px !important;
}
.dropzone-text {
  margin: 0 0 6px;
  font-size: 21px;
  font-weight: 800;
  color: var(--text);
}
.dropzone-hint {
  margin: 8px 0 0;
  font-size: 13px;
  color: var(--text-3);
  font-weight: 600;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes ss-dz-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
  @keyframes ss-dz-ring { 0% { transform: scale(0.8); opacity: 0.55; } 70% { transform: scale(1.55); opacity: 0; } 100% { opacity: 0; } }
  @keyframes ss-dz-arrow { 0%, 100% { transform: translateY(1px); } 50% { transform: translateY(-2px); } }
  .dropzone-icon { animation: ss-dz-bob 2.8s ease-in-out infinite !important; }
  .dropzone-icon::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    z-index: -1;
    background: color-mix(in srgb, var(--accent) 28%, transparent);
    animation: ss-dz-ring 2.8s ease-out infinite;
  }
  .dropzone-icon i { animation: ss-dz-arrow 2.8s ease-in-out infinite; }
  .dropzone.is-hovered .dropzone-icon,
  .dropzone.drag-over .dropzone-icon { animation-play-state: paused; }
}

.options-form,
#compressOptions .options-form {
  margin-top: 22px;
  padding: 22px;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: var(--surface);
}
.options-form label {
  color: var(--text);
  font-weight: 700;
}

.progress-area {
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}
.progress-track {
  height: 6px;
  border-radius: 999px;
  background: var(--bg-subtle);
  overflow: hidden;
}
.progress-bar {
  background: linear-gradient(90deg, var(--accent-2), var(--accent)) !important;
  border-radius: inherit;
}

.result-area {
  max-width: 760px;
  margin: 30px auto 0;
  border-radius: var(--r-xl);
}
.optimize-success-banner {
  border-radius: var(--r-lg);
}
.optimize-success-icon {
  color: var(--c-audio);
  background: color-mix(in srgb, var(--c-audio) 14%, var(--surface));
}
.optimize-stat-card {
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface-2);
}
.optimize-stat-card[data-stat='final_size_reduced'] .optimize-stat-value,
.optimize-stat-card[data-stat='savings_percent'] .optimize-stat-value,
.optimize-stat-card[data-stat='saved_bytes'] .optimize-stat-value {
  color: var(--c-audio);
}

.tools-promo-card {
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: var(--surface);
}
.tools-promo-card:hover {
  border: 1px solid var(--border-strong) !important;
  background: var(--bg-subtle) !important;
  box-shadow: none !important;
}