:root {
  color-scheme: light;
  --ink: #17201a;
  --muted: #59665d;
  --paper: #fffaf0;
  --paper-strong: #fff4d8;
  --field: #fffcf5;
  --line: rgba(23, 32, 26, 0.16);
  --brand: #0f6b57;
  --brand-strong: #0a4a3d;
  --accent: #e9552f;
  --shadow: 0 24px 80px rgba(23, 32, 26, 0.16);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Trebuchet MS", "Gill Sans", Verdana, sans-serif;
  background:
    radial-gradient(circle at 12% 18%, rgba(233, 85, 47, 0.24), transparent 26rem),
    radial-gradient(circle at 82% 8%, rgba(15, 107, 87, 0.2), transparent 28rem),
    linear-gradient(135deg, #f4ead2 0%, #fffaf0 48%, #dfe9cf 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(23, 32, 26, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 32, 26, 0.035) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.82), transparent);
}

button,
textarea,
input {
  font: inherit;
}

button,
.file-picker {
  border: 0;
  border-radius: 999px;
  color: #fffaf0;
  background: var(--brand);
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0.01em;
  padding: 0.9rem 1.2rem;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

button:hover,
.file-picker:hover {
  background: var(--brand-strong);
  box-shadow: 0 12px 24px rgba(15, 107, 87, 0.22);
  transform: translateY(-1px);
}

button:focus-visible,
.file-picker:focus-within,
textarea:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(233, 85, 47, 0.42);
  outline-offset: 3px;
}

button.secondary {
  color: var(--brand-strong);
  background: rgba(15, 107, 87, 0.11);
}

button.secondary:hover {
  color: #fffaf0;
  background: var(--brand-strong);
}

button.ghost-button {
  color: var(--accent);
  background: rgba(233, 85, 47, 0.1);
  padding-inline: 1rem;
}

button.ghost-button:hover {
  color: #fffaf0;
  background: var(--accent);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 56px 0;
  position: relative;
}

.hero {
  max-width: 860px;
  animation: rise-in 520ms ease both;
}

.eyebrow,
.label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  margin: 0 0 0.45rem;
  text-transform: uppercase;
}

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

h1 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 9vw, 7.8rem);
  letter-spacing: -0.08em;
  line-height: 0.88;
  margin-bottom: 1.2rem;
}

h2 {
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  letter-spacing: -0.035em;
  margin-bottom: 0;
}

h3 {
  margin-bottom: 0.45rem;
}

.lede {
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.34rem);
  line-height: 1.7;
  max-width: 760px;
}

.workspace {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 38px;
}

.panel,
.file-card,
.notes article {
  background: rgba(255, 250, 240, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.panel {
  min-width: 0;
  padding: 22px;
  animation: rise-in 620ms ease both;
}

.output-panel {
  animation-delay: 90ms;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.status {
  border: 1px solid rgba(15, 107, 87, 0.18);
  border-radius: 999px;
  color: var(--brand-strong);
  background: rgba(15, 107, 87, 0.08);
  font-size: 0.86rem;
  font-weight: 800;
  padding: 0.45rem 0.72rem;
  white-space: nowrap;
}

.status[data-tone="success"] {
  color: #124f27;
  background: rgba(40, 137, 72, 0.13);
  border-color: rgba(40, 137, 72, 0.24);
}

.status[data-tone="error"] {
  color: #8d2c18;
  background: rgba(233, 85, 47, 0.13);
  border-color: rgba(233, 85, 47, 0.25);
}

textarea {
  width: 100%;
  min-height: 340px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  color: var(--ink);
  background: var(--field);
  font-family: Consolas, "Liberation Mono", monospace;
  font-size: 0.98rem;
  line-height: 1.55;
  padding: 18px;
}

textarea::placeholder {
  color: rgba(89, 102, 93, 0.74);
}

.controls,
.actions,
.file-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.actions.compact button {
  flex: 1 1 150px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

.toggle input {
  accent-color: var(--brand);
  inline-size: 1.05rem;
  block-size: 1.05rem;
}

.file-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  margin-top: 18px;
  padding: 28px;
  animation: rise-in 680ms ease both;
}

.file-card p {
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 0;
}

.file-actions {
  justify-content: flex-end;
  margin-top: 0;
}

.file-picker {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.file-picker input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.filename-row {
  display: grid;
  grid-column: 1 / -1;
  grid-template-columns: auto minmax(180px, 360px);
  gap: 12px;
  align-items: center;
}

.filename-row label {
  color: var(--muted);
  font-weight: 800;
}

.filename-row input {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  color: var(--ink);
  background: var(--field);
  padding: 0.82rem 1rem;
}

.notes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 18px;
}

.notes article {
  padding: 22px;
  animation: rise-in 740ms ease both;
}

.notes p {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 0;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 820px) {
  .shell {
    width: min(100% - 20px, 720px);
    padding: 32px 0;
  }

  .workspace,
  .file-card,
  .notes {
    grid-template-columns: 1fr;
  }

  .file-actions {
    justify-content: stretch;
  }

  .file-actions > * {
    width: 100%;
  }

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

  textarea {
    min-height: 260px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}