:root {
  --bg: #f5f3ef;
  --bg-alt: #efe9de;
  --ink: #1f2529;
  --ink-soft: #49545d;
  --card: #fffcf7;
  --line: #d8cec1;
  --accent: #0f766e;
  --accent-dark: #115e59;
  --warn: #b45309;
  --error: #b91c1c;
  --ok: #166534;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 0%, rgba(15, 118, 110, 0.12), transparent 42%),
    radial-gradient(circle at 90% 10%, rgba(180, 83, 9, 0.11), transparent 38%),
    linear-gradient(180deg, var(--bg), var(--bg-alt));
  font-family: "Trebuchet MS", "Avenir Next", "Segoe UI", sans-serif;
  min-height: 100vh;
}

.shell {
  width: min(980px, 92vw);
  margin: 2.25rem auto 3rem;
  display: grid;
  gap: 1rem;
}

.hero {
  background: linear-gradient(130deg, #ffffff, #f8f0e4);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem;
  box-shadow: 0 10px 32px rgba(25, 35, 45, 0.08);
}

.eyebrow {
  margin: 0;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.hero h1 {
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.7rem, 3.4vw, 2.3rem);
  line-height: 1.15;
}

.hero p {
  margin: 0;
  color: var(--ink-soft);
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.15rem;
  box-shadow: 0 8px 20px rgba(25, 35, 45, 0.06);
}

.card h2 {
  margin: 0 0 0.85rem;
  font-size: 1.2rem;
}

.stack {
  display: grid;
  gap: 0.75rem;
}

.row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid #c8bbab;
  border-radius: 12px;
  padding: 0.65rem 0.75rem;
  color: var(--ink);
  background: #fffefb;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

input:focus,
textarea:focus {
  outline: 2px solid rgba(15, 118, 110, 0.25);
  outline-offset: 1px;
  border-color: var(--accent);
}

button {
  border: 0;
  border-radius: 999px;
  padding: 0.64rem 1rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-dark));
  color: #ffffff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.06);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.checkbox-row {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.checkbox-row input {
  width: auto;
}

.status {
  margin: 0.75rem 0 0;
  padding: 0.55rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: #f6f2ea;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.status[data-tone="ok"] {
  border-color: rgba(22, 101, 52, 0.35);
  color: var(--ok);
  background: rgba(22, 101, 52, 0.09);
}

.status[data-tone="error"] {
  border-color: rgba(185, 28, 28, 0.35);
  color: var(--error);
  background: rgba(185, 28, 28, 0.09);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  margin-bottom: 0.85rem;
}

.metric {
  border: 1px solid #d8cdbf;
  border-radius: 12px;
  padding: 0.55rem 0.65rem;
  background: #fffdf8;
}

.metric-key {
  display: block;
  color: var(--ink-soft);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metric-value {
  display: block;
  font-size: 1.03rem;
  margin-top: 0.2rem;
}

.label {
  margin: 0.8rem 0 0.3rem;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
}

.list {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.3rem;
}

.small {
  margin: 0 0 0.8rem;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.output {
  margin: 0.45rem 0 0;
  border: 1px solid #d8cdbf;
  border-radius: 12px;
  background: #fffefb;
  color: #202529;
  font-size: 0.83rem;
  line-height: 1.45;
  padding: 0.75rem;
  max-height: 340px;
  overflow: auto;
  white-space: pre-wrap;
}

.hidden {
  display: none;
}

@media (max-width: 760px) {
  .row,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .shell {
    margin-top: 1.35rem;
  }
}