/* =============================================
   TOONFOLIO - 이용 가이드 섹션 (index.html #guide)
   접두사 ug- (user guide) : 다른 섹션 스타일과 충돌하지 않음
   ============================================= */
.ug-section {
  padding: 100px 0;
  background: var(--slate-50);
}

/* ── 탭 ── */
.ug-tabs {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding: 4px 2px 12px;
  margin-bottom: 18px;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}
.ug-tab {
  flex: 0 0 auto;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1.5px solid var(--slate-200);
  background: var(--white);
  color: var(--slate-600);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all .18s ease;
}
.ug-tab:hover { border-color: var(--blue-400); color: var(--blue-600); }
.ug-tab[aria-selected="true"] {
  background: var(--blue-600);
  border-color: var(--blue-600);
  color: #fff;
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}
.ug-tab:focus-visible { outline: 3px solid rgba(37, 99, 235, 0.35); outline-offset: 2px; }

/* ── 안내 박스 ── */
.ug-notice {
  background: var(--white);
  border-left: 4px solid var(--blue-500);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 26px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-600);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.04);
}
.ug-notice strong { color: var(--slate-900); margin-right: 6px; }

/* ── 패널 ── */
.ug-panel[hidden] { display: none; }
.ug-label {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .1em;
  color: var(--blue-600);
  margin-bottom: 6px;
}
.ug-panel h3.ug-title {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--slate-900);
  margin-bottom: 18px;
}
.ug-lead { font-size: 15px; color: var(--slate-600); line-height: 1.8; margin-bottom: 18px; }

.ug-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.ug-card {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 16px;
  padding: 24px;
  box-shadow: 0 5px 22px rgba(20, 32, 75, 0.04);
}
.ug-card h4 { font-size: 17px; font-weight: 800; color: var(--slate-900); margin-bottom: 8px; }
.ug-card p { font-size: 14.5px; line-height: 1.8; color: var(--slate-600); margin: 0; }
.ug-tag {
  display: inline-block;
  background: var(--blue-50);
  color: var(--blue-700);
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  margin-bottom: 10px;
}

.ug-steps { display: grid; gap: 13px; }
.ug-step {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  align-items: start;
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 14px;
  padding: 20px;
}
.ug-circle {
  display: grid;
  place-items: center;
  width: 44px; height: 44px;
  border-radius: 13px;
  background: var(--blue-50);
  color: var(--blue-600);
  font-weight: 900;
}
.ug-step h4 { font-size: 16.5px; font-weight: 800; color: var(--slate-900); margin-bottom: 4px; }
.ug-step p { font-size: 14.5px; line-height: 1.8; color: var(--slate-600); margin: 0; }

.ug-example {
  margin-top: 16px;
  background: var(--white);
  border: 1.5px dashed var(--blue-200);
  border-radius: 14px;
  padding: 16px 20px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate-600);
}
.ug-example strong { display: block; color: var(--blue-700); margin-bottom: 4px; }

.ug-panel a.ug-link { color: var(--blue-600); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

/* ── 체크리스트 ── */
.ug-progress {
  height: 10px;
  border-radius: 999px;
  background: var(--slate-200);
  overflow: hidden;
}
.ug-progress > div {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--blue-500), var(--blue-700));
  transition: width .3s ease;
}
.ug-status { margin: 8px 0 16px; font-size: 13px; font-weight: 700; color: var(--slate-500); }
.ug-checks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.ug-checks label {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: 12px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--slate-700);
  cursor: pointer;
  transition: all .15s ease;
}
.ug-checks label:hover { border-color: var(--blue-400); }
.ug-checks input { width: 18px; height: 18px; accent-color: var(--blue-600); flex-shrink: 0; }
.ug-checks label.done { border-color: var(--blue-500); background: var(--blue-50); color: var(--blue-700); }
.ug-print {
  margin-top: 18px;
  padding: 12px 20px;
  border-radius: 10px;
  border: 1.5px solid var(--slate-200);
  background: var(--white);
  color: var(--slate-700);
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}
.ug-print:hover { border-color: var(--blue-400); color: var(--blue-600); }

/* ── FAQ ── */
.ug-faq details {
  background: var(--white);
  border: 1px solid var(--slate-200);
  border-radius: 14px;
  padding: 0 20px;
  margin-bottom: 10px;
}
.ug-faq summary {
  cursor: pointer;
  padding: 16px 0;
  font-size: 15.5px;
  font-weight: 700;
  color: var(--slate-900);
  list-style-position: inside;
}
.ug-faq details[open] summary { color: var(--blue-600); }
.ug-faq details p { margin: 0 0 16px; font-size: 14.5px; line-height: 1.8; color: var(--slate-600); }

.ug-foot { margin-top: 28px; font-size: 12.5px; color: var(--slate-500); text-align: center; }

@media (max-width: 900px) {
  .ug-grid { grid-template-columns: 1fr; }
  .ug-checks { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .ug-section { padding: 70px 0; }
  .ug-step { grid-template-columns: 1fr; gap: 10px; }
  .ug-panel h3.ug-title { font-size: 21px; }
}

/* 인쇄 / PDF 저장 시에는 모든 탭 내용을 펼쳐서 출력 */
@media print {
  .ug-tabs, .ug-print { display: none !important; }
  .ug-panel[hidden] { display: block !important; }
}