:root {
  --ling-ink: #14202b;
  --ling-muted: #5d6d7c;
  --ling-line: rgba(20, 32, 43, 0.12);
  --ling-panel: rgba(255, 255, 255, 0.9);
  --ling-bg: linear-gradient(160deg, #f8fbff 0%, #ecf6f7 45%, #fff9f1 100%);
  --ling-accent: #0f7c82;
  --ling-accent-2: #d77a2d;
  --ling-shadow: 0 28px 60px rgba(26, 42, 58, 0.12);
}

@font-face {
  font-family: "Charis";
  src: url("fonts/Charis-Regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Charis";
  src: url("fonts/Charis-Italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: "Charis";
  src: url("fonts/Charis-Bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: "Charis";
  src: url("fonts/Charis-BoldItalic.woff2") format("woff2");
  font-weight: 700;
  font-style: italic;
  font-display: swap;
}

.ling-app {
  color: var(--ling-ink);
}

.ling-hero {
  background: var(--ling-bg);
  border: 1px solid var(--ling-line);
  border-radius: 28px;
  box-shadow: var(--ling-shadow);
  margin: 1rem auto 1.5rem;
  max-width: 1400px;
  padding: 1.5rem 1.5rem 1.25rem;
}

.ling-kicker {
  color: var(--ling-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  margin: 0 0 0.5rem;
  text-transform: uppercase;
}

.ling-hero h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 0.98;
  margin: 0 0 0.85rem;
}

.ling-copy {
  color: var(--ling-muted);
  font-size: 1.05rem;
  margin: 0;
  max-width: 48rem;
}

.ling-shell {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(320px, 0.95fr) minmax(320px, 1.05fr);
  margin: 0 auto 2rem;
  max-width: 1400px;
}

.ling-pane {
  backdrop-filter: blur(10px);
  background: var(--ling-panel);
  border: 1px solid var(--ling-line);
  border-radius: 24px;
  box-shadow: var(--ling-shadow);
  min-width: 0;
  overflow: clip;
}

.ling-pane-head {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1.1rem 1.2rem 0.9rem;
}

.ling-pane-head h2 {
  font-size: 1rem;
  letter-spacing: 0.04em;
  margin: 0;
  text-transform: uppercase;
}

.ling-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.ling-chip,
.ling-button {
  appearance: none;
  background: #fff;
  border: 1px solid var(--ling-line);
  border-radius: 999px;
  color: var(--ling-ink);
  cursor: pointer;
  font: inherit;
  padding: 0.62rem 0.95rem;
  transition: transform 120ms ease, border-color 120ms ease, background-color 120ms ease;
}

.ling-chip:hover,
.ling-button:hover {
  border-color: rgba(15, 124, 130, 0.35);
  transform: translateY(-1px);
}

.ling-button-primary {
  background: var(--ling-accent);
  border-color: var(--ling-accent);
  color: #fff;
}

.ling-button[disabled] {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

#ling-editor {
  background: #14202b;
  border: 0;
  color: #f4f8fb;
  display: block;
  font-family: Berkeley-regular, "SFMono-Regular", monospace;
  font-size: 0.98rem;
  line-height: 1.55;
  min-height: 28rem;
  padding: 1.2rem;
  resize: vertical;
  width: 100%;
}

#ling-editor:focus {
  outline: 2px solid rgba(15, 124, 130, 0.45);
  outline-offset: -2px;
}

.ling-toolbar {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.2rem 0.9rem;
}

.ling-status {
  color: var(--ling-muted);
  font-size: 0.95rem;
}

.ling-details {
  border-top: 1px solid var(--ling-line);
  padding: 0.85rem 1.2rem 1.2rem;
}

.ling-details summary {
  color: var(--ling-muted);
  cursor: pointer;
  font-size: 0.92rem;
}

#ling-wrapper-preview,
.ling-errors {
  background: #10161c;
  border-radius: 18px;
  color: #eef4f8;
  font-family: Berkeley-regular, "SFMono-Regular", monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0.85rem 0 0;
  overflow: auto;
  padding: 1rem;
  white-space: pre-wrap;
}

.ling-preview {
  align-items: flex-start;
  background:
    radial-gradient(circle at top left, rgba(15, 124, 130, 0.08), transparent 32%),
    linear-gradient(180deg, #fdfefe 0%, #f5f8fb 100%);
  border-top: 1px solid var(--ling-line);
  display: flex;
  justify-content: center;
  min-height: 36rem;
  overflow: auto;
  padding: 1.25rem;
}

.ling-preview svg {
  background: white;
  box-shadow: 0 20px 40px rgba(26, 42, 58, 0.1);
  height: auto;
  max-width: 100%;
}

.ling-errors {
  color: #ffd8d8;
  margin: 1rem 1.2rem 1.2rem;
}

.ling-sr-only {
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

@media (max-width: 980px) {
  .ling-shell {
    grid-template-columns: 1fr;
  }

  .ling-preview {
    min-height: 24rem;
  }
}