/* config.css - Custom styles for configuration interface */

/* Homepage shell */
.homepage-frame {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.96), transparent 34%),
    radial-gradient(circle at bottom right, rgba(17, 24, 39, 0.08), transparent 32%),
    linear-gradient(145deg, #f5f5f7 0%, #ececf0 42%, #f7f7f8 100%);
}

.homepage-frame::before,
.homepage-frame::after {
  content: '';
  position: absolute;
  inset: auto;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(50px);
  opacity: 0.4;
}

.homepage-frame::before {
  top: 94px;
  left: -88px;
  width: 320px;
  height: 320px;
  background: rgba(255, 255, 255, 0.82);
}

.homepage-frame::after {
  right: -84px;
  top: 248px;
  width: 360px;
  height: 360px;
  background: rgba(17, 24, 39, 0.12);
}

.homepage-nav {
  border-bottom: 1px solid rgba(17, 24, 39, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(245, 245, 247, 0.88)) !important;
  box-shadow: 0 18px 36px rgba(17, 24, 39, 0.08);
}

.homepage-nav .bg-gradient-to-r {
  background-image: linear-gradient(120deg, #111827, #6b7280 55%, #d1d5db);
}

.homepage-nav a {
  color: #6b7280;
}

.homepage-nav a:hover {
  color: #111827;
  border-color: rgba(17, 24, 39, 0.45) !important;
}

.homepage-main {
  position: relative;
  z-index: 1;
  padding-block: 32px 72px;
}

.home-shell {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.98), transparent 34%),
    radial-gradient(circle at 85% 85%, rgba(17, 24, 39, 0.1), transparent 36%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.74), rgba(236, 236, 240, 0.9) 48%, rgba(246, 246, 247, 0.94));
  box-shadow: 0 34px 84px rgba(17, 24, 39, 0.14);
}

.home-shell::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.36), transparent 22%),
    radial-gradient(circle at top, rgba(255, 255, 255, 0.44), transparent 40%);
  opacity: 0.95;
}

.home-shell::after {
  content: '';
  position: absolute;
  inset: 20px;
  pointer-events: none;
  border-radius: 28px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  opacity: 0.7;
}

.home-hero {
  display: grid;
  gap: 12px;
  justify-items: center;
  padding: 8px 0 4px;
}

.home-kicker,
.home-section-eyebrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid rgba(17, 24, 39, 0.1);
  background: rgba(255, 255, 255, 0.78);
  color: #111827;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.home-hero-metrics,
.home-section-hints {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.home-hero-chip,
.home-hint-chip {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(243, 244, 246, 0.92));
  color: #4b5563;
  font-size: 12px;
  font-weight: 700;
  box-shadow: 0 10px 18px rgba(17, 24, 39, 0.05);
}

.home-form {
  display: flex;
  flex-direction: column;
  gap: 26px;
}

.home-section-card,
.home-submit-panel {
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 28px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.82), transparent 28%),
    radial-gradient(circle at bottom right, rgba(17, 24, 39, 0.05), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.58), rgba(239, 239, 242, 0.82));
  box-shadow:
    0 20px 44px rgba(17, 24, 39, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.home-section-card {
  padding: 24px;
}

.home-section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 20px;
}

.home-section-title {
  margin: 10px 0 0;
  font-size: clamp(1.35rem, 2vw, 1.8rem);
  line-height: 1.1;
  font-weight: 800;
  color: #111827;
}

.home-section-copy {
  margin: 10px 0 0;
  max-width: 720px;
  color: #6b7280;
  font-size: 14px;
  line-height: 1.7;
}

.upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.upload-card,
.upload-inline-card {
  position: relative;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 24px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(239, 239, 242, 0.86)),
    radial-gradient(circle at top, rgba(255, 255, 255, 0.34), transparent 45%);
  box-shadow: 0 16px 32px rgba(17, 24, 39, 0.06);
}

.upload-card-primary {
  grid-column: span 2;
}

.upload-card-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.upload-card-badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.92);
  color: #f8fafc;
  font-size: 11px;
  font-weight: 800;
}

.upload-card-badge-optional {
  background: rgba(229, 231, 235, 0.92);
  color: #4b5563;
}

.upload-card-meta {
  color: #6b7280;
  font-size: 12px;
  font-weight: 600;
  text-align: right;
}

.upload-dropzone {
  min-height: 220px;
  align-items: center;
  border-color: rgba(17, 24, 39, 0.08);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.92), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.68), rgba(244, 244, 246, 0.88));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.92),
    inset 0 -1px 0 rgba(17, 24, 39, 0.04);
}

.upload-card-primary .upload-dropzone {
  min-height: 250px;
}

.upload-card .drop-area:hover,
.upload-card .drop-area:focus-within {
  transform: translateY(-1px);
  box-shadow: 0 18px 34px rgba(17, 24, 39, 0.08);
}

.upload-dropzone label[for] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 18px !important;
  border-radius: 999px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: linear-gradient(135deg, #111827, #374151 68%, #6b7280) !important;
  color: #fff !important;
  box-shadow: 0 16px 28px rgba(17, 24, 39, 0.18);
}

.upload-dropzone label[for]:hover {
  background: linear-gradient(135deg, #030712, #1f2937 70%, #4b5563) !important;
}

.home-form .file-name-display:not(:empty) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.92);
  color: #f8fafc;
  font-weight: 700;
}

.upload-inline-card {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.home-text-input {
  min-height: 56px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.72) !important;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.home-text-input:focus {
  border-color: rgba(31, 41, 55, 0.35);
  box-shadow: 0 0 0 4px rgba(17, 24, 39, 0.08), inset 0 1px 2px rgba(15, 23, 42, 0.04);
}

.mode-card-label {
  position: relative;
  min-height: 132px;
  justify-content: space-between;
  border-color: rgba(17, 24, 39, 0.08);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.54), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(241, 241, 244, 0.92));
  box-shadow: 0 14px 28px rgba(17, 24, 39, 0.06);
}

.mode-card-label::before {
  content: '';
  display: block;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  margin-bottom: 18px;
  background: linear-gradient(145deg, rgba(17, 24, 39, 0.1), rgba(229, 231, 235, 0.92));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 10px 18px rgba(17, 24, 39, 0.08);
}

#mode_conserved + .mode-card-label::before {
  content: 'CR';
  align-items: center;
  justify-content: center;
  display: inline-flex;
  color: #111827;
  font-size: 12px;
  font-weight: 800;
}

#mode_primer + .mode-card-label::before {
  content: 'PS';
  align-items: center;
  justify-content: center;
  display: inline-flex;
  color: #374151;
  font-size: 12px;
  font-weight: 800;
}

#mode_phylo + .mode-card-label::before {
  content: 'PG';
  align-items: center;
  justify-content: center;
  display: inline-flex;
  color: #6b7280;
  font-size: 12px;
  font-weight: 800;
}

.mode-card-label:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(17, 24, 39, 0.08);
}

.mode-option input[type="radio"]:checked + label {
  transform: translateY(-2px);
  border-color: rgba(17, 24, 39, 0.3);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.62), transparent 32%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(230, 230, 233, 0.96));
  box-shadow: 0 22px 40px rgba(17, 24, 39, 0.12);
}

.mode-option input[type="radio"]:checked + label::after {
  content: 'Selected';
  position: absolute;
  top: 14px;
  right: 14px;
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.92);
  color: #f9fafb;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.config-surface {
  display: grid;
  gap: 18px;
}

.config-panel:not(.hidden) {
  padding: 22px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 24px;
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.56), transparent 34%),
    radial-gradient(circle at bottom right, rgba(17, 24, 39, 0.04), transparent 36%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.66), rgba(239, 239, 242, 0.9));
  box-shadow: 0 16px 34px rgba(17, 24, 39, 0.06);
}

.config-panel.hidden {
  padding: 0;
  border-width: 0;
  box-shadow: none;
}

#config-container > .config-panel > div:first-child {
  margin: -4px -4px 6px;
  padding: 18px 20px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 20px;
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.64), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(235, 235, 238, 0.92));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
}

.config-panel h3 {
  font-size: clamp(1.2rem, 1.8vw, 1.45rem);
  font-weight: 800;
  letter-spacing: -0.01em;
}

.config-panel h4 {
  color: #111827;
}

.config-panel > .space-y-4,
.config-panel > .grid {
  margin-top: 18px;
}

.config-panel .param-group {
  border: 1px solid rgba(17, 24, 39, 0.08);
  border-radius: 18px;
  padding: 14px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.74), rgba(243, 243, 245, 0.9));
  box-shadow: 0 10px 22px rgba(17, 24, 39, 0.04);
}

.config-panel .param-group input,
.config-panel .param-group select {
  min-height: 44px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.76) !important;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.03);
}

.config-panel .param-group input:focus,
.config-panel .param-group select:focus {
  transform: none;
  border-color: rgba(31, 41, 55, 0.28);
  box-shadow: 0 0 0 4px rgba(17, 24, 39, 0.08), inset 0 1px 2px rgba(15, 23, 42, 0.03);
}

.advanced-params {
  overflow: hidden;
  border-color: rgba(17, 24, 39, 0.08);
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(247, 247, 248, 0.74), rgba(255, 255, 255, 0.88));
  box-shadow: 0 12px 26px rgba(17, 24, 39, 0.05);
}

.advanced-params[open] {
  background: linear-gradient(180deg, rgba(233, 233, 236, 0.72), rgba(255, 255, 255, 0.92));
}

.advanced-params summary {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 0 18px;
}

.advanced-params summary:hover {
  background-color: rgba(255, 255, 255, 0.52);
}

.advanced-params > div,
.advanced-params > .space-y-4 {
  padding: 0 18px 18px;
}

.home-submit-panel {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.home-submit-copy {
  display: grid;
  gap: 10px;
}

.home-upload-progress {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border: none;
  border-radius: 999px;
  background: rgba(226, 232, 240, 0.95);
}

.home-upload-progress::-webkit-progress-bar {
  background: rgba(226, 232, 240, 0.95);
  border-radius: 999px;
}

.home-upload-progress::-webkit-progress-value {
  border-radius: 999px;
  background: linear-gradient(90deg, #111827, #6b7280, #d1d5db);
}

.home-upload-progress::-moz-progress-bar {
  border-radius: 999px;
  background: linear-gradient(90deg, #111827, #6b7280, #d1d5db);
}

.home-upload-progress-message {
  margin: 0;
  flex: 1;
  min-width: 0;
  font-size: 0.92rem;
  line-height: 1.45;
  color: rgba(31, 41, 55, 0.86);
}

.home-upload-progress-status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: -4px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
}

.home-upload-progress-spinner {
  width: 18px;
  height: 18px;
  flex: 0 0 18px;
  border-radius: 999px;
  border: 2px solid rgba(17, 24, 39, 0.14);
  border-top-color: #111827;
  animation: home-upload-progress-spin 0.85s linear infinite;
}

.home-upload-progress-status[data-state="idle"] .home-upload-progress-spinner {
  display: none;
}

.home-upload-progress-status[data-state="error"] .home-upload-progress-spinner {
  display: none;
}

.home-upload-progress-status[data-state="error"] .home-upload-progress-message {
  color: #b91c1c;
}

.home-upload-progress-status[data-state="error"] .home-upload-progress-percent {
  background: rgba(185, 28, 28, 0.12);
  color: #b91c1c;
}

.home-upload-progress-percent {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 54px;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(17, 24, 39, 0.08);
  color: #111827;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

@keyframes home-upload-progress-spin {
  to {
    transform: rotate(360deg);
  }
}

.home-upload-restore {
  display: grid;
  gap: 16px;
  padding: 16px 18px;
  border-radius: 18px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 30px rgba(15, 23, 42, 0.08);
}

.home-upload-restore-copy {
  display: grid;
  gap: 6px;
}

.home-upload-restore-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: #111827;
}

.home-upload-restore-message {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.55;
  color: rgba(31, 41, 55, 0.82);
}

.home-upload-restore-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.home-upload-restore-button {
  border: 0;
  border-radius: 999px;
  padding: 0.7rem 1rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #111827, #374151);
  transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.home-upload-restore-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 18px rgba(17, 24, 39, 0.16);
}

.home-upload-restore-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.home-upload-restore-button-secondary {
  color: #111827;
  background: rgba(226, 232, 240, 0.92);
}

.home-submit-panel #startButton {
  min-height: 62px;
  border-radius: 20px;
  border: 1px solid rgba(17, 24, 39, 0.08);
  background: linear-gradient(135deg, #030712, #1f2937 52%, #6b7280 100%) !important;
  color: #fff !important;
  box-shadow: 0 22px 36px rgba(17, 24, 39, 0.18);
}

.home-submit-panel #startButton:hover {
  background: linear-gradient(135deg, #000000, #111827 52%, #4b5563 100%) !important;
}

.home-submit-panel #startButton:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Mode selection cards */
.mode-option input[type="radio"]:checked + label {
  animation: pulse-once 0.3s ease-in-out;
}

@keyframes pulse-once {
  0%, 100% {
    transform: translateY(-2px) scale(1);
  }
  50% {
    transform: translateY(-4px) scale(1.01);
  }
}

/* Parameter groups */
.param-group {
  position: relative;
  transition: all 0.2s ease;
}

.param-group:hover {
  transform: translateY(-1px);
}

.param-group label {
  cursor: default;
  user-select: none;
}

.param-group input,
.param-group select {
  transition: all 0.2s ease;
}

.param-group input:focus,
.param-group select:focus {
  transform: scale(1.01);
  box-shadow: 0 0 0 3px rgba(17, 24, 39, 0.08);
}

/* Advanced parameters - details/summary */
.advanced-params {
  border: 1px solid rgba(17, 24, 39, 0.08);
  transition: all 0.3s ease;
}

.advanced-params[open] {
  background-color: rgba(239, 239, 241, 0.56);
}

.advanced-params summary {
  list-style: none;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
}

.advanced-params summary::-webkit-details-marker {
  display: none;
}

.advanced-params summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 0.5rem;
  transition: transform 0.3s ease;
  font-size: 0.75rem;
}

.advanced-params[open] summary::before {
  transform: rotate(90deg);
}

.advanced-params summary:hover {
  background-color: rgba(255, 255, 255, 0.54);
}

/* Config panel transitions */
.config-panel {
  transition: opacity 0.3s ease, max-height 0.3s ease;
  overflow: hidden;
}

.config-panel.hidden {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
}

.config-panel:not(.hidden) {
  max-height: 5000px;
  opacity: 1;
}

/* Input number spinner styling */
input[type="number"] {
  -moz-appearance: textfield;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"]:hover::-webkit-outer-spin-button,
input[type="number"]:hover::-webkit-inner-spin-button {
  -webkit-appearance: inner-spin-button;
  opacity: 1;
}

/* Help text styling */
.param-group .text-xs {
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.param-group:hover .text-xs {
  opacity: 1;
}

/* Select dropdown styling */
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3E%3Cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 0.5rem center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: 2.5rem;
}

/* Section headers */
.config-panel h4 {
  position: relative;
  padding-left: 0.75rem;
}

.config-panel h4::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 1.2em;
  background: linear-gradient(to bottom, rgba(17, 24, 39, 0.84), rgba(156, 163, 175, 0.45));
  border-radius: 2px;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .home-shell {
    padding: 20px;
  }

  .home-section-card,
  .home-submit-panel {
    padding: 18px;
    border-radius: 22px;
  }

  .home-section-head,
  .upload-card-topline,
  .home-section-hints {
    flex-direction: column;
    align-items: flex-start;
  }

  .upload-grid {
    grid-template-columns: 1fr;
  }

  .upload-card-primary {
    grid-column: span 1;
  }

  .upload-dropzone,
  .upload-card-primary .upload-dropzone {
    min-height: 210px;
  }

  .mode-card-label {
    min-height: 118px;
  }

  .advanced-params summary {
    padding: 14px 16px;
    min-height: 0;
  }

  .advanced-params > div,
  .advanced-params > .space-y-4 {
    padding: 0 16px 16px;
  }

  .config-panel {
    padding: 1rem;
  }

  .advanced-params {
    margin: 0.5rem 0;
  }

  .param-group {
    margin-bottom: 0.75rem;
  }
}

/* Loading state for inputs (optional, for future use) */
.param-group.loading input,
.param-group.loading select {
  opacity: 0.5;
  pointer-events: none;
}

/* Validation feedback */
.param-group.error input,
.param-group.error select {
  border-color: #ef4444 !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.param-group.success input,
.param-group.success select {
  border-color: #10b981 !important;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

/* Tooltip-like help text on hover (optional enhancement) */
.param-group[data-tooltip] {
  position: relative;
}

.param-group[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  top: -2.5rem;
  left: 0;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  white-space: nowrap;
  z-index: 10;
  pointer-events: none;
  opacity: 0;
  animation: fadeIn 0.2s ease forwards;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

/* Config container header styling */
#config-container > .config-panel > div:first-child {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 2px solid rgba(229, 231, 235, 0.5);
}

/* Grid layout enhancements */
.grid.gap-4 {
  row-gap: 1.25rem;
}

/* Smooth scrolling to config section */
html {
  scroll-behavior: smooth;
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid rgba(17, 24, 39, 0.28);
  outline-offset: 2px;
}