:root {
  --bg: #f5f5f4;
  --panel: #ffffff;
  --border: #d9d6d0;
  --text: #262421;
  --muted: #74706a;
  --accent: #8a4b2f;
  --error: #b3261e;
  --warning: #8a6d1a;
  --ok: #2e6b3e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 2rem 1.5rem 1rem;
  max-width: 760px;
  margin: 0 auto;
}

header h1 { margin: 0 0 0.25rem; }
header p { margin: 0; color: var(--muted); }

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.25rem 1.5rem;
}

.panel h2 {
  margin-top: 0;
  font-size: 1rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.hint {
  margin: 0.6rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.rules-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.rules-theme {
  margin: 1rem 0 0.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.rules-theme:first-child {
  margin-top: 0;
}

.rule-item {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.rule-item input { margin-top: 0.2rem; }

.rule-item .badge {
  font-size: 0.7rem;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: #f0e3d4;
  color: var(--warning);
  margin-left: 0.4rem;
}

#upload-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 1rem;
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.55rem 1.1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
}

button:disabled { opacity: 0.6; cursor: not-allowed; }

#report { color: var(--muted); }

.report-summary {
  font-weight: 600;
  margin-bottom: 0.75rem;
}
.report-summary.ok { color: var(--ok); }
.report-summary.error { color: var(--error); }
.report-summary.warning { color: var(--warning); }

.issue-group {
  border-top: 1px solid var(--border);
  padding: 0.6rem 0;
}
.issue-group:first-child { border-top: none; }

.issue-group .title { font-weight: 600; color: var(--text); }
.issue-group .title.warning { color: var(--warning); }
.issue-group .title.error { color: var(--error); }
.issue-group .count { color: var(--muted); font-weight: 400; }

.issue-context {
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0.25rem 0 0 1rem;
}