:root {
  --color1: #003f5c; /* Deep Navy */
  --color2: #2f4b7c; /* Slate Blue */
  --color3: #665191; /* Purple */
  --color4: #a05195; /* Magenta */
  --color5: #ffa600; /* Amber */

  --bg-light: #fafafa;
  --text: #222;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Noto Sans KR', sans-serif;
  background: var(--bg-light);
  color: var(--text);
  line-height: 1.6;
}

h1 {
  text-align: center;
  font-size: 2.2rem;
  margin: 1.2rem 0 0.5rem;
  color: var(--color1);
}

h1 small {
  font-size: 1rem;
  color: var(--color3);
}

h2 {
  margin-top: 0;
  color: var(--color3);
  font-size: 1.6rem;
  border-left: 6px solid var(--color4);
  padding-left: 0.6rem;
}

.page {
  display: none;
  padding: 2rem 1rem 3rem;
  max-width: 900px;
  margin: 0 auto;
  animation: fade 0.3s ease-in-out;
}

.page.active {
  display: block;
}

@keyframes fade {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.notice {
  background: var(--color1);
  color: #fff;
  padding: 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
}

.grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.nav-btn {
  border: none;
  cursor: pointer;
  padding: 1rem 0.5rem;
  font-size: 1rem;
  color: #fff;
  font-weight: 500;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

/* Assign palette to buttons */
.nav-btn:nth-child(5n+1) { background: var(--color1); }
.nav-btn:nth-child(5n+2) { background: var(--color2); }
.nav-btn:nth-child(5n+3) { background: var(--color3); }
.nav-btn:nth-child(5n+4) { background: var(--color4); }
.nav-btn:nth-child(5n+5) { background: var(--color5); }

.back-btn {
  margin-top: 2rem;
  background: var(--color2);
  border: none;
  color: #fff;
  font-size: 1rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.back-btn:hover {
  background: var(--color3);
}

ol {
  padding-left: 1.2rem;
  margin: 1.5rem 0 0;
}

ol li {
  margin-bottom: 1.8rem;
}

.choice-group {
  margin-top: 0.4rem;
  display: flex;
  gap: 0.5rem;
}

.choice-btn {
  flex: 0 0 90px;
  padding: 0.25rem 0.5rem;
  border: 2px solid transparent;
  border-radius: 20px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.25s ease;
}

.choice-btn.yes { background: var(--color5); color: #fff; }
.choice-btn.no { background: #e0e0e0; color: var(--text); }

.choice-btn:hover { transform: translateY(-2px); }

.choice-btn.selected {
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  border-color: var(--color4);
}

.result-btn {
  margin-top: 2rem;
  background: var(--color5);
  border: none;
  color: #fff;
  font-size: 1rem;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.result-btn:hover { background: var(--color4); }

/* ===== 결과 모달 ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: #fff;
  padding: 2rem 2.2rem;
  border-radius: 14px;
  max-width: 420px;
  width: calc(100% - 2rem);
  text-align: center;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.modal-title {
  margin: 0 0 1rem;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color1);
}

.modal-body {
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.modal-close-btn {
  background: var(--color2);
  border: none;
  color: #fff;
  font-size: 1rem;
  padding: 0.65rem 1.4rem;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s ease;
}

.modal-close-btn:hover {
  background: var(--color3);
}