@charset "UTF-8";

@font-face {
  font-family: 'MathematicalStr Math';
  font-style: normal;
  font-weight: 400;
  src: url('../fonts/NotoSansMath-Regular.woff') format('woff');
  font-display: swap;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, sans-serif;
  line-height: 1.6;
  color: #172344;
  background-color: #ccffff;
}

button,
textarea,
input {
  font: inherit;
}

button {
  min-height: 44px;
  padding: 7px 12px;
  font-size: 0.875rem;
  color: #213a76;
  touch-action: manipulation;
  cursor: pointer;
  background: #f2f5ff;
  border: 1px solid #9aaada;
  border-radius: 7px;
}

button:disabled {
  color: #68738b;
  cursor: default;
  background: #f5f6f8;
  border-color: #d4d9e3;
}

button:hover:not(:disabled) {
  background: #e1e8ff;
}

:focus-visible {
  outline: 3px solid #315ccc;
  outline-offset: 3px;
}

a {
  color: #2349a0;
  text-underline-offset: 3px;
}

#contents {
  max-width: 780px;
  min-height: 100vh;
  margin: 0 auto;
  background: #ffffff;
}

.page-header {
  padding: 10px;
  text-align: center;
  background: #c0cbff;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(1.15rem, 4.5vw, 1.5rem);
  color: #000055;
}

.byline {
  margin-top: 4px;
  font-size: 0.8rem;
}

#version-info {
  margin-left: 12px;
  color: #47577d;
}

.input-section,
.results-section {
  padding: 18px;
}

.input-section {
  background: #fafbff;
  border-bottom: 1px solid #e2e6f1;
}

.input-header,
.input-actions,
.result-header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.input-header {
  flex-wrap: wrap;
  margin-bottom: 8px;
  font-weight: 700;
}

.input-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

#input-text {
  display: block;
  width: 100%;
  min-height: 110px;
  padding: 12px;
  font-size: 16px;
  line-height: 1.6;
  color: #172344;
  resize: vertical;
  background: #ffffff;
  border: 1px solid #9aaada;
  border-radius: 8px;
}

.hint {
  margin-top: 8px;
  font-size: 0.8rem;
  color: #5a6580;
}

.input-actions {
  flex-wrap: wrap;
  margin-top: 12px;
}

.checkbox-label {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  min-height: 44px;
  font-size: 0.875rem;
  cursor: pointer;
}

.checkbox-label input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: #365bc2;
}

h2 {
  font-size: 1rem;
}

#result {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.result-card {
  min-width: 0;
  overflow: hidden;
  border: 1px solid #d9dfef;
  border-radius: 8px;
}

.result-header {
  gap: 8px;
  padding: 8px 10px;
  background: #f2f4ff;
}

h3 {
  font-size: 0.75rem;
  overflow-wrap: anywhere;
}

.copy-button {
  flex-shrink: 0;
  padding: 6px 10px;
}

.result-text {
  min-height: 64px;
  max-height: 240px;
  padding: 12px;
  overflow: auto;
  font-family: 'MathematicalStr Math', 'Cambria Math', 'STIX Two Math',
    'Noto Sans Math', serif;
  font-size: 1.4rem;
  line-height: 1.7;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

.result-text:empty::before {
  color: #8992a6;
  content: '—';
}

.result-text:focus-visible {
  outline-offset: -3px;
}

.about {
  padding: 16px 18px 100px;
  font-size: 0.85rem;
  border-top: 1px solid #e2e6f1;
}

.about summary {
  padding: 8px 0;
  font-weight: 700;
  cursor: pointer;
}

.about ul {
  padding-left: 1.5em;
}

.about li,
.about p {
  margin-top: 8px;
}

#status:not(:empty) {
  position: fixed;
  right: 12px;
  bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  left: 12px;
  z-index: 1;
  width: fit-content;
  max-width: calc(100% - 24px);
  padding: 10px 16px;
  margin: 0 auto;
  font-size: 0.875rem;
  color: #ffffff;
  pointer-events: none;
  background: #25355e;
  border-radius: 8px;
}

.clipboard-field {
  position: fixed;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  font-size: 16px;
  opacity: 0;
}

.noscript-message {
  padding: 18px;
  color: #a12020;
}

@media (width <= 600px) {
  #result {
    grid-template-columns: minmax(0, 1fr);
  }

  .input-section,
  .results-section {
    padding: 14px;
  }
}