:root {
  --bg: #0b0e14;
  --bg-grad-a: #16202f;
  --bg-grad-b: #0a1310;
  --panel: #111826;
  --line: #2a3347;
  --text: #e7ecf7;
  --muted: #9eabc2;
  --accent: #60c3ff;
  --accent-2: #83e7ba;
  --warning: #ff8585;
  --ui-size: 14px;
  --ui-size-sm: 12px;
  --ui-line: 1.35;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Outfit", "IBM Plex Sans", system-ui, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 12%, rgba(96, 195, 255, 0.2), transparent 42%),
    radial-gradient(circle at 88% 4%, rgba(131, 231, 186, 0.18), transparent 45%),
    linear-gradient(170deg, var(--bg) 0%, var(--bg-grad-a) 55%, var(--bg-grad-b) 100%);
}

.layout {
  width: min(1360px, 100% - 2rem);
  margin: 1rem auto;
  display: grid;
  gap: 1rem;
  grid-template-columns: minmax(650px, 1fr) minmax(340px, 534px);
  align-items: start;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(17, 24, 38, 0.95), rgba(11, 17, 29, 0.95));
  padding: 1rem;
  backdrop-filter: blur(4px);
}

h1,
h2 {
  margin: 0;
}

.subtitle {
  margin: 0.45rem 0 1rem;
  color: var(--muted);
}

#noteForm {
  display: grid;
  gap: 0.8rem;
}

.group {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.75rem;
  margin: 0;
  background: rgba(15, 22, 35, 0.85);
}

legend {
  padding: 0 0.35rem;
  color: var(--muted);
}

label {
  display: grid;
  gap: 0.3rem;
  color: var(--muted);
  font-size: var(--ui-size);
  line-height: var(--ui-line);
}

input,
select,
textarea,
button {
  font: inherit;
  font-size: var(--ui-size);
  line-height: var(--ui-line);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.58rem 0.65rem;
  background: #0e1525;
  color: var(--text);
}

textarea {
  resize: vertical;
  font-family: "IBM Plex Mono", monospace;
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(96, 195, 255, 0.45);
  outline-offset: 1px;
}

.row-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  align-items: flex-end;
}

.row-grid > label {
  flex: 1 1 180px;
}

.row-grid > label:has(textarea) {
  flex-basis: 100%;
}

.row-grid > textarea {
  flex: 1 1 100%;
}

.row-controls {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr) 84px;
  gap: 0.7rem;
  align-items: start;
}

.row-controls .style-tools {
  margin-top: 0;
}

.row-controls.no-icon {
  grid-template-columns: minmax(0, 1fr) 84px;
}

.row-fields {
  margin-top: 0.6rem;
}

.icon-top-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 84px;
  gap: 0.7rem;
  align-items: start;
  margin-bottom: 0.6rem;
}

.icon-field {
  display: grid;
  gap: 0.3rem;
}

.icon-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.icon-input-wrap input {
  width: 40px;
}

.icon-clear {
  width: 28px;
  height: 28px;
  min-width: 28px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid #2f4b77;
  background: #0f1b30;
  color: #a9cbf5;
  font-size: 0.85rem;
  font-weight: 700;
}

.icon-clear:hover {
  filter: brightness(1.12);
}

.row-reorder {
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 0.35rem;
}

.row-move {
  width: 34px;
  height: 34px;
  min-width: 34px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid #2f4b77;
  background: #0f1b30;
  color: #a9cbf5;
  font-size: 14px;
  font-weight: 700;
}

.row-move:hover {
  filter: brightness(1.12);
}

.inline-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.inline-check input[type="checkbox"] {
  width: auto;
}

.inline-help {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.inline-help input {
  width: 40px;
}

.style-tools {
  margin-top: 0.6rem;
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 0.7rem;
  align-items: start;
}

.tool-set {
  display: grid;
  gap: 0.3rem;
}

.tool-title {
  font-size: var(--ui-size);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #91a4c2;
}

.tool-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.tool-chip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 32px;
  padding: 0 0.55rem;
  border-radius: 9px;
  border: 1px solid #334360;
  background: #0e172a;
  color: #c3d3ea;
  font-size: var(--ui-size-sm);
  cursor: pointer;
  user-select: none;
}

.tool-chip input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}

.tool-chip:has(input:checked) {
  background: linear-gradient(130deg, #63c2ff, #8ce5c4);
  color: #052132;
  border-color: transparent;
  font-weight: 700;
}

.scale-row {
  margin-top: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

#iconMode {
  margin-bottom: 0.55rem;
}

#iconUrlWrap,
#iconUploadWrap {
  margin-bottom: 0.55rem;
}

.scale-value {
  font-size: var(--ui-size);
  color: #c1d8f5;
}

.scale-label {
  margin-top: 0.2rem;
}

.span-2 {
  flex-basis: 100%;
}

.stack {
  display: grid;
  gap: 0.45rem;
  margin: 0.55rem 0;
}

.stack-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
}

button {
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 0.58rem 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: #04121e;
  background: linear-gradient(125deg, var(--accent), var(--accent-2));
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button.ghost {
  background: #0d1730;
  color: #9dccff;
  border-color: #28406f;
}

.icon-help {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.86rem;
}

.icon-help a {
  color: #87d0ff;
}

.info-wrap {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.info-icon {
  width: 18px;
  height: 18px;
  border: 1px solid #456087;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #a8cfff;
  font-size: 0.76rem;
  font-weight: 700;
}

.tooltip {
  position: absolute;
  left: 22px;
  top: -4px;
  min-width: 220px;
  padding: 0.48rem 0.56rem;
  border: 1px solid #3e4d69;
  border-radius: 8px;
  background: #0a101c;
  color: #c2cee3;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 0.14s ease, transform 0.14s ease;
}

.info-wrap:hover .tooltip,
.info-wrap:focus-within .tooltip {
  opacity: 1;
  transform: translateY(0);
}

.status {
  min-height: 1.1rem;
  margin: 0.35rem 0 0;
  color: var(--muted);
  font-size: var(--ui-size-sm);
}

.status.error {
  color: #ff9b9b;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.55rem;
}

.panel-preview {
  display: flex;
  justify-content: flex-end;
  align-items: flex-start;
}

.preview-wrap {
  width: 100%;
  flex: 0 1 auto;
  max-width: 100%;
  margin-left: auto;
}

.mode-toggle {
  display: flex;
  gap: 0.4rem;
}

.toggle {
  background: #111a2a;
  color: #b6c9e6;
  border: 1px solid #2f405e;
  padding: 0.35rem 0.62rem;
}

.toggle.active {
  color: #072031;
  border-color: transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
}

.preview-shell {
  width: 100%;
  min-width: 340px;
}

.preview-shell.dark {
  background: transparent;
}

.preview-shell.light {
  background: transparent;
}

.preview-title {
  min-height: 35px;
  padding: 9px 9px 10px;
  font-family: helvetica, arial, verdana, sans-serif;
  font-size: 15px;
  font-weight: 300;
  line-height: 15px;
}

.preview-shell.dark .preview-title {
  color: #4db5ff;
  background: #333333;
}

.preview-shell.light .preview-title {
  color: #157fcc;
  background: #f5f5f5;
}

.preview-body {
  border: 1px solid #cfcfcf;
  height: 313px;
}

.preview-card {
  height: 100%;
  padding: 10px;
  overflow: auto;
  font-family: helvetica, arial, verdana, sans-serif;
  font-size: 13px;
  font-weight: 300;
  line-height: 18.2px;
}

.preview-shell.dark .preview-card {
  background: #262626;
  color: #f2f2f2;
}

.preview-shell.light .preview-card {
  background: #ffffff;
  color: #000000;
}

.preview-shell.dark .preview-body {
  border-color: #404040;
}

.preview-shell.light .preview-body {
  border-color: #cfcfcf;
}

.preview-card img {
  object-fit: contain;
  display: block;
}

.preview-shell.dark .preview-card a {
  color: #4db5ff;
}

.preview-shell.light .preview-card a {
  color: #157fcc;
}

.preview-card p {
  margin-top: 0.75em;
  margin-bottom: 0.75em;
}

.preview-card :is(h1, h2, h3, h4, h5, h6) {
  margin-top: 0.9em;
  margin-bottom: 0.75em;
}

.preview-card h1 {
  font-size: 22.75px;
  font-weight: 700;
  line-height: 31.85px;
}

.preview-card h2 {
  font-size: 19.5px;
  font-weight: 700;
  line-height: 27.3px;
}

.preview-card h3 {
  font-size: 16.25px;
  font-weight: 700;
  line-height: 22.75px;
}

.preview-card h4 {
  font-size: 14.3px;
  font-weight: 700;
  line-height: 20.02px;
}

.preview-card h5 {
  font-size: 13px;
  font-weight: 700;
  line-height: 18.2px;
}

.preview-card b {
  font-size: 13px;
  font-weight: 400;
  line-height: 18.2px;
}

.preview-card i {
  font-style: italic;
}

.preview-card strong {
  font-size: 13px;
  font-weight: 700;
  line-height: 18.2px;
}

.preview-card code {
  white-space: pre;
  padding: 1px;
  font-family: "IBM Plex Mono", Menlo, Monaco, Consolas, monospace;
}

.preview-shell.dark .preview-card code {
  background-color: #1a1a1a;
}

.preview-shell.light .preview-card code {
  background-color: #f5f5f5;
}

.output-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  margin: 0.7rem 0 0.35rem;
  font-size: var(--ui-size);
  color: var(--muted);
}

.warning {
  color: var(--warning);
}

.actions {
  margin: 0.5rem 0;
}

.hidden {
  display: none;
}

@media (max-width: 1080px) {
  .layout {
    grid-template-columns: 1fr;
  }

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

  .row-controls {
    grid-template-columns: 1fr;
  }

  .row-controls.no-icon {
    grid-template-columns: 1fr;
  }

  .icon-top-controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .preview-wrap {
    width: 100%;
    flex: 1 1 auto;
    max-width: none;
  }

  .preview-shell {
    width: 100%;
    min-width: 0;
  }
}