:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #142033;
  --muted: #61708a;
  --line: #dce3ef;
  --primary: #2563eb;
  --success: #0f9d58;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(15, 157, 88, 0.10), transparent 24%),
    linear-gradient(180deg, #eef4ff, var(--bg));
}
.app {
  width: min(760px, calc(100vw - 24px));
  margin: 24px auto 48px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 14px 40px rgba(20, 32, 51, 0.06);
  margin-bottom: 16px;
}
.hero h1 { margin-top: 12px; line-height: 1.25; }
.brand-lockup {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-logo-wrap {
  padding: 10px 12px;
  border-radius: 16px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 10px 24px rgba(20,32,51,.08);
}
.brand-logo {
  display: block;
  width: 120px;
  height: auto;
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0;
}
.feature-card {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff, #f7faff);
}
.feature-card strong {
  font-size: 15px;
}
.feature-card span {
  color: var(--muted);
  font-size: 13px;
}
.badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: #e8f0ff;
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}
.badge.success { background: #e8f7ee; color: var(--success); }
.clean-list { padding-left: 18px; color: var(--muted); }
.role-note {
  margin: -2px 0 4px;
}
.grid.two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.stack { display: grid; }
.gap-md { gap: 14px; }
label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}
input, select, button {
  font: inherit;
}
input, select {
  width: 100%;
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.5);
}
.checkbox-row {
  grid-template-columns: 20px 1fr;
  align-items: start;
  font-weight: 500;
}
.checkbox-row input { margin-top: 4px; }
.primary {
  background: linear-gradient(180deg, #2563eb, #1e56cf);
  color: white;
  border: none;
  border-radius: 14px;
  padding: 14px 16px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.20);
}
.primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.muted { color: var(--muted); }
.hidden { display: none !important; }
.topbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}
.timer {
  min-width: 82px;
  text-align: center;
  padding: 10px 12px;
  border-radius: 14px;
  background: #f1f5ff;
  color: var(--primary);
  font-weight: 800;
}
.progress-track {
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: #edf2fb;
  overflow: hidden;
  margin: 12px 0 6px;
}
.progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #2563eb, #0f9d58);
  border-radius: 999px;
  transition: width .2s ease;
}
.options {
  display: grid;
  gap: 12px;
  margin: 18px 0 20px;
}
.option,
.dual-option {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  cursor: pointer;
  background: #fff;
}
.option.active,
.dual-option.active {
  border-color: var(--primary);
  background: #f3f7ff;
}
.dual-grid {
  display: grid;
  gap: 14px;
}
.dual-group {
  display: grid;
  gap: 10px;
}
.center { text-align: center; }
.result-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
  margin-top: 16px;
}
.result-card h3 { margin: 0 0 10px; }
.pill {
  display: inline-flex;
  padding: 6px 10px;
  border-radius: 999px;
  background: #eef3ff;
  color: #28458a;
  font-size: 12px;
  font-weight: 700;
  margin-right: 8px;
  margin-bottom: 8px;
}
.actions.bottom {
  display: flex;
  align-items: end;
}
@media (max-width: 640px) {
  .grid.two,
  .feature-grid { grid-template-columns: 1fr; }
  .card { padding: 18px; border-radius: 20px; }
}