:root {
  --bg: #f6f6f7;
  --panel: rgba(255,255,255,.86);
  --ink: #161617;
  --muted: #6e6e73;
  --soft: #ececef;
  --line: rgba(0,0,0,.08);
  --shadow: 0 18px 50px rgba(0,0,0,.08);
  --shadow-soft: 0 8px 28px rgba(0,0,0,.06);
  --radius: 22px;
  --dark: #1d1d1f;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.95), transparent 34rem),
    linear-gradient(180deg, #fbfbfc 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Arial, sans-serif;
  line-height: 1.5;
}
a { color: var(--ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
.shell { width: min(1120px, calc(100% - 36px)); margin: 32px auto 64px; }
.shell.narrow { width: min(760px, calc(100% - 36px)); }
.shell.wide { width: min(1500px, calc(100% - 28px)); }
.hero-panel, .panel, .question, .case-card, .metric-card, .chart-card {
  background: var(--panel);
  border: 1px solid rgba(255,255,255,.72);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}
.hero-panel, .panel { padding: 30px; }
.center { text-align: center; }
h1, h2, h3 { margin: 0 0 12px; line-height: 1.12; font-weight: 720; letter-spacing: 0; }
h1 { font-size: clamp(30px, 5vw, 52px); }
h2 { font-size: 22px; }
h3 { font-size: 16px; }
p { margin: 0 0 14px; }
.lead { font-size: 18px; color: #303033; }
.muted, .hint, .scale-note { color: var(--muted); }
.kicker { margin: 0 0 8px; color: var(--muted); text-transform: uppercase; font-size: 12px; letter-spacing: .08em; font-weight: 700; }
.form-grid, .filters, .stack { display: grid; gap: 16px; }
label { display: grid; gap: 8px; font-weight: 650; }
input, select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.92);
  color: var(--ink);
  padding: 13px 14px;
  font: inherit;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: rgba(0,0,0,.26);
  box-shadow: 0 0 0 4px rgba(0,0,0,.06);
  background: #fff;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid rgba(0,0,0,.12);
  border-radius: 999px;
  background: rgba(255,255,255,.9);
  color: var(--ink);
  padding: 0 20px;
  font-weight: 720;
  text-decoration: none;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.button.primary { background: var(--dark); color: #fff; }
.alert, .notice {
  border: 1px solid rgba(0,0,0,.12);
  background: #fff;
  border-radius: 16px;
  padding: 14px;
  margin: 18px 0;
  box-shadow: var(--shadow-soft);
}
.sticky-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px min(28px, 4vw);
  background: rgba(246,246,247,.78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(20px);
}
.sticky-header h1 { font-size: clamp(22px, 4vw, 34px); margin-bottom: 0; }
.stopwatch {
  min-width: 92px;
  text-align: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: #fff;
  box-shadow: var(--shadow-soft);
  font-variant-numeric: tabular-nums;
  font-weight: 760;
}
.progress { height: 8px; border-radius: 999px; background: #e4e4e7; overflow: hidden; margin: 8px 0 26px; }
.progress span { display: block; height: 100%; background: linear-gradient(90deg, #202124, #777); transition: width .3s ease; }
.assessment-form { display: grid; gap: 20px; }
.question { border: 0; padding: 22px; }
.question legend { padding: 0 4px; font-weight: 760; font-size: 18px; }
.option, .check-card, .pair-option {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: rgba(255,255,255,.7);
  font-weight: 500;
  transition: background .18s ease, transform .18s ease;
}
.option:hover, .pair-option:hover, .check-card:hover { background: #fff; transform: translateY(-1px); }
.option input, .check-card input, .pair-option input { width: auto; margin-top: 5px; }
.pair-grid, .grid.two { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.grid.two.compact { gap: 12px; margin: 14px 0; }
.rank-grid { display: grid; gap: 12px; margin-bottom: 14px; }
.rank-grid label { grid-template-columns: 1fr minmax(170px, .8fr); align-items: center; }
.case-card { padding: 26px; display: grid; gap: 14px; }
.case-row { padding: 14px; border-radius: 16px; background: rgba(255,255,255,.72); border: 1px solid var(--line); }
.textarea-head { display: flex; justify-content: flex-end; color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.over { color: #111; font-weight: 800; }
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.34);
  display: grid;
  place-items: center;
  z-index: 20;
  padding: 20px;
}
.modal > div {
  max-width: 560px;
  background: rgba(255,255,255,.96);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 28px;
}
.hidden { display: none; }
.admin-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 20px 0;
  flex-wrap: wrap;
}
.admin-nav span { color: var(--muted); margin-left: auto; }
.metrics { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.metric-card { padding: 18px; }
.metric-card strong { display: block; font-size: 28px; letter-spacing: 0; }
.filters { grid-template-columns: repeat(8, minmax(120px, 1fr)); margin: 18px 0; }
.table-wrap { overflow-x: auto; border-radius: 20px; box-shadow: var(--shadow-soft); }
table { width: 100%; border-collapse: collapse; background: rgba(255,255,255,.88); }
th, td { border-bottom: 1px solid var(--line); padding: 13px 12px; text-align: left; vertical-align: top; font-size: 14px; }
th { color: #3a3a3c; background: rgba(245,245,247,.9); white-space: nowrap; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tag-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin: 10px 0; }
.result { border-top: 1px solid var(--line); padding-top: 14px; margin-top: 14px; }
pre {
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(255,255,255,.74);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  font-size: 13px;
}
.charts-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.chart-card { padding: 18px; }
.bar-row { display: grid; grid-template-columns: 150px 1fr 54px; gap: 10px; align-items: center; margin: 12px 0; }
.bar-track { height: 12px; background: #e6e6e8; border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; width: 0; background: linear-gradient(90deg, #202124, #8b8b8f); border-radius: 999px; transition: width .6s ease; }
.pill { display: inline-flex; padding: 5px 10px; border-radius: 999px; background: #efeff1; font-size: 12px; font-weight: 700; }
.risk-high { background: #2d2d2f; color: #fff; }
.risk-moderate { background: #d7d7db; }
.risk-low { background: #f0f0f2; }
.inline-form { margin-top: 18px; }
@media (max-width: 1100px) {
  .metrics { grid-template-columns: repeat(3, 1fr); }
  .filters { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 820px) {
  .pair-grid, .grid.two, .charts-grid { grid-template-columns: 1fr; }
  .rank-grid label { grid-template-columns: 1fr; }
  .sticky-header { align-items: flex-start; }
  .metrics { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .shell, .shell.narrow, .shell.wide { width: min(100% - 20px, 100%); margin: 14px auto 44px; }
  .hero-panel, .panel, .question, .case-card { padding: 18px; border-radius: 18px; }
  .metrics, .filters, .tag-grid { grid-template-columns: 1fr; }
  .sticky-header { padding: 12px; }
  .bar-row { grid-template-columns: 1fr; }
}