:root {
  --canvas: #ffffff;
  --ink: #000000;
  --divider: #e5e5e5;
  --signal: #0052cc;
  --signal-soft: #f0f4ff;
  --danger: #b42318;
  --warning: #b54708;
  --success: #027a48;
  --muted: #5f6368;
  --radius: 4px;
  --section: 64px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --max: 1280px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: 'Pretendard', 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}
button,
a,
input { font: inherit; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button { cursor: pointer; }

.page-shell {
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) max(24px, calc((100vw - var(--max)) / 2));
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--divider);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-weight: 700;
}

.brand-mark {
  width: 16px;
  height: 16px;
  background: var(--signal);
  transform: skew(-18deg);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.screen {
  display: none;
}

.screen-active {
  display: block;
}

.hero-grid,
.feature-grid,
.assessment-shell,
.results-shell,
.section-block,
.score-layout,
.result-grid {
  width: min(calc(100% - 48px), var(--max));
  margin: 0 auto;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.05fr);
  gap: var(--space-6);
  align-items: center;
  padding: var(--section) 0 var(--space-7);
}

.hero-media,
.feature-media {
  min-height: 520px;
}

.hero-media img,
.feature-media img {
  width: 100%;
  height: 100%;
  min-height: 520px;
  object-fit: cover;
}

.panel {
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  background: var(--canvas);
}

.caption {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--divider);
  font-size: 12px;
  color: var(--muted);
}

.hero-copy {
  display: grid;
  gap: var(--space-5);
  padding: var(--space-6) 0;
}

.eyebrow,
.section-kicker,
.score-label {
  margin: 0;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--signal);
  text-transform: uppercase;
}

.hero-copy h1,
.section-head h2,
.results-head h2,
.assessment-sidebar h2,
.question-header h2 {
  margin: 0;
  font-size: clamp(36px, 6vw, 64px);
  line-height: 1;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.section-head h2,
.results-head h2,
.assessment-sidebar h2,
.question-header h2 {
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.08;
}

.lead,
.question-hint,
.score-message,
.insight-list,
.roadmap-list,
.regulation-list,
.feature-list span,
.risk-card p {
  font-size: 16px;
  color: var(--muted);
}

.hero-actions,
.sidebar-actions,
.results-head-actions,
.question-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.primary-button,
.ghost-button,
.ghost-link,
.secondary-link,
.consult-link {
  min-height: 44px;
  padding: 12px 20px;
  border-radius: var(--radius);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.primary-button {
  background: var(--signal);
  color: #ffffff;
  border: 1px solid var(--signal);
}

.ghost-button,
.ghost-link,
.secondary-link,
.consult-link {
  background: var(--canvas);
  color: var(--ink);
  border: 1px solid var(--divider);
}

.primary-button:hover,
.ghost-button:hover,
.ghost-link:hover,
.secondary-link:hover,
.consult-link:hover {
  transform: translateY(-2px);
}

.primary-button:focus-visible,
.ghost-button:focus-visible,
.ghost-link:focus-visible,
.secondary-link:focus-visible,
.consult-link:focus-visible,
.option-card:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.meta-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  list-style: none;
  padding: 0;
  margin: 0;
}

.meta-list li {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--divider);
  font-size: 14px;
}

.section-block {
  padding: var(--section) 0;
  border-top: 1px solid var(--divider);
}

.no-top-padding {
  padding-top: 0;
}

.section-head {
  display: grid;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.section-head-offset {
  width: min(720px, 100%);
  margin-left: auto;
}

.section-head.compact h3,
.results-shell h3 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
}

.risk-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.risk-card {
  padding: var(--space-6);
  min-height: 220px;
  display: grid;
  align-content: start;
  gap: var(--space-3);
}

.offset-down {
  transform: translateY(28px);
}

.index,
.chart-value,
.score-number,
.axis-score,
.priority-badge,
.metric-number {
  font-family: ui-monospace, 'SFMono-Regular', 'Menlo', 'Monaco', 'Liberation Mono', monospace;
  text-align: right;
}

.risk-card h3,
.feature-list strong,
.axis-name,
.roadmap-item h4,
.regulation-group h4 {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
}

.feature-grid {
  display: grid;
  grid-template-columns: minmax(360px, 1.1fr) minmax(320px, 0.9fr);
  gap: var(--space-6);
  align-items: start;
}

.feature-copy {
  display: grid;
  gap: var(--space-5);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-4);
}

.feature-list li {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  border-top: 1px solid var(--divider);
}

.assessment-shell {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.2fr);
  gap: var(--space-6);
  align-items: start;
  padding: var(--section) 0;
}

.assessment-sidebar,
.question-shell,
.results-shell {
  padding: var(--space-6);
}

.assessment-sidebar {
  position: sticky;
  top: 96px;
  display: grid;
  gap: var(--space-5);
}

.progress-summary {
  display: grid;
  gap: var(--space-2);
}

.progress-label-row {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
}

.progress-track,
.meter {
  width: 100%;
  height: 12px;
  background: #f7f7f7;
  border: 1px solid var(--divider);
  overflow: hidden;
}

.progress-fill,
.meter-fill {
  width: 0;
  height: 100%;
  background: var(--signal);
  transition: width 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

.axis-list {
  display: grid;
  gap: var(--space-3);
}

.axis-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-2);
  padding: var(--space-4);
  border: 1px solid var(--divider);
}

.axis-card p,
.axis-card span {
  margin: 0;
}

.axis-card.active {
  border-color: var(--signal);
  background: var(--signal-soft);
}

.question-shell {
  border: 1px solid var(--divider);
  display: grid;
  gap: var(--space-6);
}

.option-list {
  display: grid;
  gap: var(--space-3);
}

.option-card {
  display: grid;
  grid-template-columns: 24px 1fr;
  align-items: start;
  gap: var(--space-4);
  padding: var(--space-5);
  border: 1px solid var(--divider);
  border-radius: var(--radius);
  background: var(--canvas);
  cursor: pointer;
  transition: border-color 180ms ease, transform 180ms ease, background-color 180ms ease;
}

.option-card:hover {
  transform: translateX(4px);
}

.option-card.is-selected {
  border-color: var(--signal);
  background: var(--signal-soft);
}

.option-mark {
  width: 24px;
  height: 24px;
  border: 1px solid var(--divider);
  display: grid;
  place-items: center;
}

.option-mark::after {
  content: '';
  width: 10px;
  height: 10px;
  background: transparent;
  transition: background-color 180ms ease;
}

.option-card.is-selected .option-mark::after {
  background: var(--signal);
}

.option-title {
  margin: 0 0 var(--space-2);
  font-weight: 700;
}

.option-desc {
  margin: 0;
  color: var(--muted);
}

.results-shell {
  padding-top: var(--section);
  padding-bottom: var(--section);
}

.results-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}

.score-layout,
.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.score-panel,
.insight-panel,
.result-grid .panel {
  padding: var(--space-6);
}

.score-number-wrap {
  display: flex;
  align-items: end;
  gap: var(--space-2);
  margin: var(--space-4) 0;
}

.score-number {
  font-size: clamp(64px, 10vw, 112px);
  line-height: 0.9;
}

.score-total {
  font-size: 24px;
  padding-bottom: 12px;
}

.grade-badge,
.priority-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 12px;
  border: 1px solid var(--divider);
  font-size: 14px;
  font-weight: 700;
}

.insight-list,
.roadmap-list,
.regulation-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: var(--space-3);
}

.bar-chart {
  display: grid;
  gap: var(--space-4);
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(140px, 220px) 1fr auto;
  gap: var(--space-4);
  align-items: center;
}

.bar-track {
  height: 20px;
  background: #f7f7f7;
  border: 1px solid var(--divider);
  overflow: hidden;
}

.bar-fill {
  width: 0;
  height: 100%;
  background: var(--signal);
  transition: width 560ms cubic-bezier(0.22, 1, 0.36, 1);
}

.roadmap-item,
.regulation-group {
  border-top: 1px solid var(--divider);
  padding-top: var(--space-4);
  display: grid;
  gap: var(--space-3);
}

.roadmap-item ul,
.regulation-tags {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: var(--space-2);
}

.regulation-tags {
  padding-left: 0;
  list-style: none;
}

.consult-link {
  justify-self: start;
}

.toast {
  position: fixed;
  left: 24px;
  bottom: 24px;
  padding: 12px 16px;
  border: 1px solid var(--divider);
  background: var(--canvas);
  transform: translateY(120%);
  transition: transform 220ms ease;
}

.toast.show {
  transform: translateY(0);
}

.reveal {
  opacity: 0;
  animation-duration: 720ms;
  animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
  animation-fill-mode: both;
}

.reveal-left { animation-name: revealLeft; }
.reveal-right { animation-name: revealRight; }
.reveal-up { animation-name: revealUp; }

@keyframes revealLeft {
  from { opacity: 0; transform: translateX(-32px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes revealRight {
  from { opacity: 0; transform: translateX(32px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes revealUp {
  from { opacity: 0; transform: translateY(32px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 1024px) {
  .hero-grid,
  .feature-grid,
  .assessment-shell,
  .score-layout,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .section-head-offset {
    margin-left: 0;
  }

  .offset-down {
    transform: none;
  }

  .assessment-sidebar {
    position: static;
  }

  .bar-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .hero-grid,
  .feature-grid,
  .assessment-shell,
  .results-shell,
  .section-block,
  .score-layout,
  .result-grid {
    width: min(calc(100% - 32px), var(--max));
  }

  .hero-media,
  .feature-media,
  .hero-media img,
  .feature-media img {
    min-height: 360px;
  }

  .risk-grid {
    grid-template-columns: 1fr;
  }

  .risk-card,
  .assessment-sidebar,
  .question-shell,
  .score-panel,
  .insight-panel,
  .result-grid .panel {
    padding: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}