:root {
  color-scheme: light;
  --bg: #f6f7f2;
  --panel: #ffffff;
  --ink: #20242a;
  --muted: #626c76;
  --line: #dfe4dc;
  --accent: #176c72;
  --accent-dark: #0e4f54;
  --accent-soft: #d9eeee;
  --gold: #b86f18;
  --coral: #c24b3a;
  --shadow: 0 18px 42px rgba(31, 41, 55, 0.12);
  --radius: 8px;
}

html,
body {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0)),
    var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 24px;
  overflow-x: hidden;
}

.intro-panel,
.form-card,
.result-card,
.logic-panel {
  min-width: 0;
  max-width: 100%;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.intro-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  gap: 32px;
  align-items: end;
  padding: 34px;
  margin-bottom: 22px;
}

.intro-panel > *,
.workspace > *,
.legend,
.option-card,
.result-topline > * {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(2rem, 5vw, 4.8rem);
  line-height: 0.96;
  letter-spacing: 0;
  color: #20242a;
}

h2 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.2;
}

h3 {
  margin: 0 0 10px;
  font-size: 0.98rem;
}

.intro-copy {
  max-width: 760px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 1.03rem;
}

.legend {
  display: grid;
  gap: 12px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcf8;
}

.legend h2 {
  margin: 0;
  font-size: 1rem;
}

.legend-header,
.legend-list > div {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.legend-header {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.legend-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.legend-list dt {
  display: inline-grid;
  place-items: center;
  min-height: 30px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 900;
}

.legend-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.score-grid span {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.92rem;
}

.score-grid strong {
  color: var(--ink);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  gap: 22px;
  align-items: start;
}

.form-card,
.result-card,
.logic-panel {
  padding: 26px;
}

.section-heading {
  margin-bottom: 22px;
}

.field-label,
.question-title {
  display: block;
  margin-bottom: 10px;
  color: #303740;
  font-weight: 800;
}

.feature-input {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  border: 1px solid #cdd5cf;
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--ink);
}

.feature-input:focus,
.option-card:focus-within,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(23, 108, 114, 0.28);
  outline-offset: 2px;
}

.questions {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.question-group {
  margin: 0;
  padding-top: 22px;
  border: 0;
  border-top: 1px solid var(--line);
}

.option-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.option-card {
  position: relative;
  display: flex;
  min-height: 92px;
  padding: 13px;
  border: 1px solid #d6ded8;
  border-radius: var(--radius);
  background: #fbfcf8;
  transition:
    border-color 160ms ease,
    background-color 160ms ease,
    transform 160ms ease;
}

.option-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.option-card input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.option-card:has(input:checked) {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.option-content {
  display: grid;
  gap: 8px;
  align-content: start;
  width: 100%;
}

.option-label {
  color: var(--ink);
  font-weight: 800;
  line-height: 1.25;
}

.option-points {
  color: var(--muted);
  font-size: 0.82rem;
}

.result-card {
  position: sticky;
  top: 18px;
}

.result-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.score-pill {
  flex: 0 0 auto;
  padding: 7px 10px;
  border-radius: 999px;
  background: #eef3ed;
  color: #3e4b45;
  font-size: 0.86rem;
  font-weight: 800;
  text-align: center;
}

.size-badge {
  display: grid;
  place-items: center;
  width: 100%;
  max-width: 240px;
  aspect-ratio: 1;
  margin: 28px auto 18px;
  border: 9px solid rgba(255, 255, 255, 0.88);
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.42), transparent 34%),
    var(--accent);
  box-shadow: 0 22px 40px rgba(14, 79, 84, 0.28);
  color: #ffffff;
  font-size: 4.7rem;
  font-weight: 900;
  line-height: 1;
}

.size-title {
  margin: 0;
  color: var(--ink);
  font-size: 1.15rem;
  font-weight: 900;
  text-align: center;
}

.size-explanation {
  margin: 12px 0 0;
  color: var(--muted);
  text-align: center;
}

.result-block {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.factor-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.next-step {
  margin: 0;
  color: var(--muted);
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 24px;
}

.primary-button,
.secondary-button {
  min-height: 46px;
  border-radius: var(--radius);
  font-weight: 850;
}

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

.primary-button:hover {
  background: var(--accent-dark);
}

.secondary-button {
  border: 1px solid #cdd5cf;
  background: #ffffff;
  color: var(--ink);
}

.secondary-button:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
}

.copy-status {
  min-height: 24px;
  margin: 10px 0 0;
  color: var(--accent-dark);
  font-size: 0.9rem;
  font-weight: 750;
}

.logic-panel {
  margin-top: 22px;
}

summary {
  color: var(--ink);
  cursor: pointer;
  font-weight: 900;
}

.logic-content {
  margin-top: 16px;
  color: var(--muted);
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
}

.score-grid span {
  display: grid;
  justify-content: stretch;
  min-height: 68px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcf8;
}

@media (max-width: 940px) {
  .intro-panel,
  .workspace {
    grid-template-columns: 1fr;
  }

  .result-card {
    position: static;
  }

  .option-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .score-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .app-shell {
    padding: 18px 10px;
  }

  .intro-panel,
  .form-card,
  .result-card,
  .logic-panel {
    padding: 18px;
  }

  .option-grid,
  .button-row,
  .score-grid {
    grid-template-columns: 1fr;
  }

  .option-card {
    min-height: 72px;
  }

  .size-badge {
    max-width: 190px;
    font-size: 3.8rem;
  }
}