:root {
  --bg: #eef2ec;
  --panel: #fffef8;
  --line: #ccd5c8;
  --text: #1f2a24;
  --muted: #69746b;
  --brand: #2f6f58;
  --brand-dark: #215340;
  --accent: #e7efe5;
  --danger: #a23b2a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    linear-gradient(135deg, rgba(47, 111, 88, 0.12), transparent 34%),
    linear-gradient(180deg, #f7f8f2 0%, var(--bg) 100%);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}

.shell {
  width: min(1160px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
}

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

h1 {
  margin: 0 0 6px;
  font-size: 28px;
  line-height: 1.2;
}

.subtle {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.7;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 16px 36px rgba(42, 60, 49, 0.08);
}

.panel h2 {
  margin: 0;
  padding: 16px 18px 8px;
  font-size: 17px;
}

.content {
  padding: 0 18px 18px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.two {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
}

input[type="text"],
input[type="number"],
input[type="file"],
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 11px;
  font: inherit;
  background: #fff;
  color: var(--text);
}

textarea {
  min-height: 96px;
  resize: vertical;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
}

.hint {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.checks {
  display: grid;
  gap: 8px;
}

.check {
  display: flex;
  align-items: center;
  gap: 9px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button {
  border: 0;
  border-radius: 8px;
  padding: 11px 15px;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  background: var(--brand);
  cursor: pointer;
}

button.secondary {
  color: var(--brand-dark);
  background: var(--accent);
  border: 1px solid #c7d8c4;
}

button:disabled {
  cursor: wait;
  opacity: 0.68;
}

.notice,
.metric,
.error {
  display: grid;
  gap: 6px;
  padding: 13px;
  border-radius: 8px;
  border: 1px solid #d9e4d6;
  background: #f8fbf5;
  font-size: 13px;
  line-height: 1.6;
}

.metric strong,
.notice strong {
  font-size: 14px;
}

.metric span,
.notice span {
  color: var(--muted);
}

.error {
  color: var(--danger);
  border-color: #e7c6bf;
  background: #fff7f5;
  white-space: pre-wrap;
}

.stack {
  display: grid;
  gap: 12px;
}

ul {
  margin: 4px 0 0;
  padding-left: 18px;
}

@media (max-width: 900px) {
  .topbar {
    display: grid;
    align-items: start;
  }

  .layout,
  .two {
    grid-template-columns: 1fr;
  }
}