:root {
  --bg: #f7f6f3;
  --paper: #ffffff;
  --ink: #1a1a1a;
  --ink-soft: #5a5a5a;
  --muted: #8a8a8a;
  --line: #e6e3dc;
  --accent: #1e4d3a;
  --accent-soft: #d4e4dc;
  --warn: #b85c2f;
  --ok: #2d6e4e;
  --info-bg: #f0f4f1;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { font-weight: 600; letter-spacing: 0.02em; }
.meta { display: flex; gap: 10px; align-items: center; }

.container {
  max-width: 820px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

.footer {
  max-width: 820px;
  margin: 0 auto;
  padding: 24px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

h1 { font-size: 28px; margin: 0 0 12px; letter-spacing: -0.01em; }
h2 { font-size: 20px; margin: 40px 0 16px; padding-bottom: 8px; border-bottom: 2px solid var(--accent); }
.lead { font-size: 17px; color: var(--ink); margin: 0 0 12px; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
code { font-family: "SF Mono", Consolas, monospace; font-size: 90%; background: var(--info-bg); padding: 1px 5px; border-radius: 3px; }

.intro { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 24px; margin-bottom: 24px; }
.intro .privacy { margin-top: 14px; }
.intro .privacy summary { cursor: pointer; color: var(--accent); font-size: 14px; }
.intro .privacy ul { margin: 10px 0 0; padding-left: 22px; font-size: 14px; color: var(--ink-soft); }

.progress-wrap { margin-bottom: 24px; }
.progress-bar { height: 6px; background: var(--line); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--accent); width: 0%; transition: width 0.3s; }
.progress-text { margin-top: 6px; font-size: 13px; color: var(--muted); }

.section {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px 28px 12px;
  margin-bottom: 22px;
}
.section h2 { margin-top: 0; }

.q { margin-bottom: 26px; }
.q label { display: block; font-weight: 500; margin-bottom: 6px; }
.qnum {
  display: inline-block;
  min-width: 22px;
  padding: 0 6px;
  margin-right: 8px;
  background: var(--accent);
  color: white;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
  text-align: center;
  vertical-align: 1px;
}
.hint { margin: 2px 0 8px; color: var(--ink-soft); font-size: 14px; }

textarea, input[type="text"], input[type="email"], input[type="number"], select {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fdfdfb;
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea { resize: vertical; min-height: 70px; }
textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.radios, .checks { display: flex; flex-direction: column; gap: 6px; margin-top: 6px; }
.radios label, .checks label { font-weight: normal; cursor: pointer; }
.radios input, .checks input { margin-right: 8px; }

.ai-block .info-box {
  background: var(--info-bg);
  border: 1px solid var(--accent-soft);
  border-radius: 6px;
  padding: 14px 18px;
  margin: 10px 0 14px;
}
.ai-block .info-box summary { cursor: pointer; color: var(--ink); }
.info-body { margin-top: 12px; font-size: 14px; color: var(--ink-soft); }
.info-body ul { padding-left: 22px; }
.info-body p { margin: 10px 0; }

.save-status {
  font-size: 13px;
  color: var(--ok);
  padding: 4px 10px;
  border-radius: 999px;
  background: #eaf3ed;
  transition: opacity 0.2s;
}
.save-status.saving { color: var(--ink-soft); background: var(--info-bg); }
.save-status.error { color: var(--warn); background: #fbeae0; }

.submit-block {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
}
.btn {
  display: inline-block;
  padding: 8px 16px;
  font: inherit;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); color: white; border-color: var(--accent); padding: 12px 28px; font-size: 16px; }
.btn-primary:hover { background: #163d2c; border-color: #163d2c; }
.btn-small { padding: 6px 12px; font-size: 13px; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--ink-soft); }

.submitted-badge { padding: 16px; background: #eaf3ed; color: var(--ok); border-radius: 6px; }

.card { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; padding: 32px; }
.centered { text-align: center; max-width: 520px; margin: 60px auto; }

.admin-table { width: 100%; border-collapse: collapse; background: var(--paper); border-radius: 8px; overflow: hidden; border: 1px solid var(--line); }
.admin-table th, .admin-table td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); font-size: 14px; }
.admin-table th { background: var(--info-bg); font-weight: 600; }
.admin-table tr:last-child td { border-bottom: 0; }
.admin-table.small th, .admin-table.small td { padding: 6px 10px; font-size: 13px; }

.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 500; }
.badge-ok { background: #eaf3ed; color: var(--ok); }
.badge-progress { background: #fdf3e0; color: #a06a1a; }
.badge-pending { background: var(--info-bg); color: var(--muted); }

.meta-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 8px 24px; margin: 16px 0 32px; padding: 16px 20px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; font-size: 14px; }

.answer-block { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 12px 16px; margin-bottom: 12px; }
.answer-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.answer-body { margin: 0; white-space: pre-wrap; word-wrap: break-word; font-family: inherit; font-size: 14px; }

.narrow-form { max-width: 480px; }
.link-box { display: flex; gap: 8px; margin: 16px 0; }
.link-box input { flex: 1; font-family: monospace; font-size: 13px; }

.email-display {
  font-family: "SF Mono", Consolas, monospace;
  font-size: 16px;
  padding: 10px 14px;
  background: var(--info-bg);
  border-radius: 6px;
  display: inline-block;
  margin: 8px 0 20px;
}
.code-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
}
.code-form label { font-size: 14px; color: var(--ink-soft); }
.code-input {
  font-size: 28px;
  letter-spacing: 0.4em;
  text-align: center;
  font-family: "SF Mono", Consolas, monospace;
  padding: 12px;
  width: 240px;
  font-weight: 600;
}
.error-box {
  background: #fbeae0;
  color: var(--warn);
  border: 1px solid #e8c5a8;
  padding: 10px 14px;
  border-radius: 6px;
  margin: 12px 0;
  text-align: left;
  font-size: 14px;
}
.legal h2 { font-size: 17px; margin: 28px 0 8px; border: none; padding: 0; }
.legal ul { padding-left: 22px; }
.legal p, .legal li { font-size: 14px; color: var(--ink-soft); line-height: 1.6; }
.legal p strong, .legal li strong { color: var(--ink); }

@media (max-width: 640px) {
  .container { padding: 20px 14px 60px; }
  .section { padding: 18px 16px 6px; }
  .q { margin-bottom: 22px; }
  h1 { font-size: 24px; }
  h2 { font-size: 18px; }
}