:root {
  color: #17211c;
  background: #f5f5ef;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 940px;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(41, 94, 82, 0.12), transparent 36%),
    linear-gradient(315deg, rgba(190, 78, 61, 0.1), transparent 34%),
    #f5f5ef;
}

button,
textarea {
  font: inherit;
}

button {
  align-items: center;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  display: inline-flex;
  font-weight: 700;
  gap: 8px;
  justify-content: center;
  min-height: 42px;
  padding: 0 16px;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background 140ms ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.shell {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin: 0 auto;
  max-width: 1420px;
  min-height: 100vh;
  padding: 28px;
}

.hero {
  align-items: flex-end;
  display: flex;
  gap: 24px;
  justify-content: space-between;
  padding: 10px 2px 4px;
}

.eyebrow {
  align-items: center;
  color: #2d6f62;
  display: flex;
  font-size: 0.85rem;
  font-weight: 800;
  gap: 7px;
  letter-spacing: 0;
  margin: 0 0 10px;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: #13201b;
  font-size: 2.8rem;
  letter-spacing: 0;
  line-height: 1.02;
}

h2 {
  font-size: 1rem;
  letter-spacing: 0;
}

.subline {
  color: #53635d;
  font-size: 1.04rem;
  line-height: 1.5;
  margin-top: 12px;
  max-width: 720px;
}

.heroActions,
.buttonRow {
  display: flex;
  gap: 10px;
}

.primary {
  background: #1f5d53;
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(31, 93, 83, 0.18);
}

.secondary {
  background: #ffffff;
  color: #1f332d;
  box-shadow: inset 0 0 0 1px #d9ded5;
}

.iconButton {
  background: #eef2ec;
  color: #26372f;
  min-width: 42px;
  padding: 0;
}

.stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.stats div {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid #dde3da;
  border-radius: 8px;
  padding: 14px 16px;
}

.stats span {
  color: #9b3f31;
  display: block;
  font-size: 1.35rem;
  font-weight: 850;
  line-height: 1;
}

.stats p,
.panelHeader p,
.replacement p {
  color: #64726d;
  font-size: 0.86rem;
  line-height: 1.4;
  margin-top: 5px;
}

.workspace {
  display: grid;
  flex: 1;
  gap: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  min-height: 430px;
}

.panel,
.replacementPanel {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid #dbe2d8;
  border-radius: 8px;
  box-shadow: 0 20px 54px rgba(54, 67, 61, 0.1);
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}

.panelHeader {
  align-items: center;
  border-bottom: 1px solid #e2e6de;
  display: flex;
  gap: 16px;
  justify-content: space-between;
  padding: 16px;
}

.panelHeader.compact {
  border-bottom: 0;
  padding-bottom: 10px;
}

textarea {
  background: #101815;
  border: 0;
  color: #e7eee8;
  flex: 1;
  line-height: 1.55;
  min-height: 360px;
  outline: none;
  padding: 18px;
  resize: none;
  white-space: pre;
}

textarea::selection {
  background: #be4e3d;
  color: #ffffff;
}

.replacementPanel {
  padding-bottom: 16px;
}

.replacementGrid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding: 0 16px;
}

.replacement {
  align-items: flex-start;
  background: #f7f8f4;
  border: 1px solid #e1e6dd;
  border-radius: 8px;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  min-height: 88px;
  padding: 13px;
}

.replacement strong {
  color: #26372f;
  display: block;
  font-size: 0.86rem;
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.replacement span {
  background: #e6efe8;
  border-radius: 999px;
  color: #23594f;
  flex: 0 0 auto;
  font-size: 0.75rem;
  font-weight: 800;
  max-width: 42%;
  padding: 6px 9px;
  text-align: right;
}

.empty {
  color: #66736d;
  padding: 0 16px 4px;
}

@media (max-width: 1050px) {
  body {
    min-width: 0;
  }

  .shell {
    padding: 18px;
  }

  .hero,
  .workspace {
    grid-template-columns: 1fr;
  }

  .hero {
    align-items: stretch;
    flex-direction: column;
  }

  .heroActions {
    flex-wrap: wrap;
  }

  h1 {
    font-size: 2.25rem;
  }

  .replacementGrid,
  .stats {
    grid-template-columns: 1fr;
  }
}