:root {
  color-scheme: light;
  --bg: #f6f4ef;
  --surface: #ffffff;
  --ink: #222222;
  --muted: #666666;
  --line: #ded8cc;
  --option-bg: #fbfaf7;
  --body-glow: rgba(47, 125, 120, 0.14);
  --body-start: #f6f4ef;
  --body-end: #eef4f3;
  --badge-bg: rgba(255, 255, 255, 0.72);
  --sticky-fade: rgba(246, 244, 239, 0);
  --button-surface: #ffffff;
  --result-bg: #172928;
  --result-title: #cdece7;
  --result-text: #edf8f6;
  --accent: #2f7d78;
  --accent-dark: #245e5b;
  --accent-soft: #e5f2ef;
  --accent-ink: #ffffff;
  --warn: #b9462f;
  --shadow: 0 16px 36px rgba(34, 34, 34, 0.1);
}

body[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111717;
  --surface: #1b2424;
  --ink: #f2f5f4;
  --muted: #a8b4b1;
  --line: #344341;
  --option-bg: #202b2a;
  --body-glow: rgba(87, 194, 182, 0.18);
  --body-start: #0f1515;
  --body-end: #182625;
  --badge-bg: rgba(27, 36, 36, 0.8);
  --sticky-fade: rgba(17, 23, 23, 0);
  --button-surface: #1b2424;
  --result-bg: #eaf7f4;
  --result-title: #245e5b;
  --result-text: #293f3d;
  --accent: #65c9be;
  --accent-dark: #8bded5;
  --accent-soft: #203f3c;
  --accent-ink: #10201f;
  --warn: #ffb09e;
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.32);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, var(--body-glow), transparent 32rem),
    linear-gradient(135deg, var(--body-start) 0%, var(--body-end) 100%);
  min-height: 100vh;
}

main {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hidden {
  display: none;
}

.theme-toggle {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 10;
  min-height: 40px;
  border: 1px solid var(--line);
  background: var(--button-surface);
  color: var(--ink);
  box-shadow: 0 8px 22px rgba(34, 34, 34, 0.08);
}

.intro {
  min-height: calc(100vh - 96px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.intro h1,
.top h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
}

.intro p,
.lead {
  margin: 0;
  max-width: 660px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.intro .primary {
  margin-top: 28px;
}

.top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  margin-bottom: 24px;
}

.badge {
  min-width: 132px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--badge-bg);
  text-align: center;
  box-shadow: 0 8px 22px rgba(34, 34, 34, 0.06);
}

.badge strong {
  display: block;
  font-size: 26px;
  color: var(--accent-dark);
}

.badge span {
  color: var(--muted);
  font-size: 13px;
}

form {
  display: grid;
  gap: 18px;
}

.question {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  box-shadow: 0 10px 26px rgba(34, 34, 34, 0.06);
}

.question h2 {
  margin: 0 0 16px;
  font-size: 19px;
  line-height: 1.45;
}

.options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.option {
  position: relative;
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--option-bg);
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

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

.option input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex: 0 0 auto;
}

.option span {
  line-height: 1.45;
  word-break: keep-all;
}

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

.actions {
  position: sticky;
  bottom: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 16px 0 0;
  background: linear-gradient(to top, var(--bg) 70%, var(--sticky-fade));
}

.message {
  color: var(--warn);
  font-weight: 700;
  min-height: 22px;
}

.buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

button {
  min-height: 46px;
  border: 0;
  border-radius: 8px;
  padding: 0 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.primary {
  background: var(--accent);
  color: var(--accent-ink);
}

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

.secondary {
  border: 1px solid var(--line);
  background: var(--button-surface);
  color: var(--ink);
}

.result {
  display: none;
  margin-top: 28px;
  background: var(--result-bg);
  color: var(--result-text);
  border-radius: 8px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.result.show {
  display: block;
}

.result-type {
  margin: 0 0 8px;
  font-size: clamp(38px, 7vw, 70px);
  letter-spacing: 0;
  line-height: 1;
}

.result-title {
  margin: 0 0 16px;
  font-size: 24px;
  color: var(--result-title);
}

.result-text {
  margin: 0;
  color: var(--result-text);
  line-height: 1.75;
}

.scores {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin-top: 22px;
}

.score {
  padding: 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
}

.score strong {
  display: block;
  margin-bottom: 5px;
  color: var(--result-title);
}

.partnership {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 28px;
  align-items: start;
  margin-top: 48px;
  padding-top: 42px;
  border-top: 1px solid var(--line);
}

.partnership-copy {
  position: sticky;
  top: 84px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.partnership h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
}

.partnership p {
  color: var(--muted);
  line-height: 1.7;
}

.partnership-form {
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 10px 26px rgba(34, 34, 34, 0.06);
}

.partnership-form label {
  display: grid;
  gap: 8px;
}

.partnership-form span {
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
}

.partnership-form input,
.partnership-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  background: var(--option-bg);
  color: var(--ink);
  font: inherit;
}

.partnership-form textarea {
  resize: vertical;
  min-height: 140px;
}

.partnership-form input:focus,
.partnership-form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.partnership-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--accent-dark);
  font-weight: 700;
}

@media (max-width: 720px) {
  main {
    width: min(100% - 24px, 980px);
    padding-top: 28px;
  }

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

  .badge {
    width: 100%;
  }

  .options,
  .scores {
    grid-template-columns: 1fr;
  }

  .actions {
    align-items: stretch;
    flex-direction: column;
  }

  .buttons,
  button {
    width: 100%;
  }

  .theme-toggle {
    width: auto;
  }

  .partnership {
    grid-template-columns: 1fr;
    margin-top: 40px;
  }

  .partnership-copy {
    position: static;
  }

  .partnership-actions {
    align-items: stretch;
    flex-direction: column;
  }
}