/*
 * 디자인 토큰 (H 구조 다양화 선택값과 연동)
 * --color-primary: 파스텔 스틸블루 #A0C4D8
 * --radius: btn-square 버튼 형태 → 8px (완전 각짐도 완전 알약도 아닌 신뢰감 있는 사각)
 * label-number 섹션 라벨: "01 — Portfolio" 형식, --color-primary 포인트 컬러 사용
 */
:root {
  --color-primary: #A0C4D8;
  --color-primary-dark: #6E9AB5;
  --color-ink: #1e293b;
  --radius: 8px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; }

/* FOUC 방지: Tailwind CDN 적용 전에는 본문을 숨기고, footer 하단 스크립트에서 해제한다. */
body.fouc-hide { visibility: hidden; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

/* 버튼 형태: btn-square (신뢰·전문성 강조) */
.btn-square {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-square:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--color-primary);
  color: #0f2733;
}
.btn-primary:hover { background: var(--color-primary-dark); }
.btn-outline {
  background: #fff;
  border: 1.5px solid var(--color-primary-dark);
  color: var(--color-ink);
}

/* 섹션 라벨: label-number */
.section-label {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}
.section-label .num { font-size: 1.1rem; }

/* 포트폴리오 그리드: grid-3 */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .portfolio-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
.portfolio-card {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  border: 1px solid #e2e8f0;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}
.portfolio-card:hover {
  box-shadow: 0 12px 24px -8px rgba(15, 23, 42, 0.15);
  transform: translateY(-3px);
}
.portfolio-card img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; }
.portfolio-card .body { padding: 1rem 1.1rem; }
.portfolio-card .tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(160, 196, 216, 0.35);
  color: var(--color-ink);
  margin-bottom: 0.4rem;
}

/* 갤러리 카드 */
.gallery-card { border-radius: var(--radius); overflow: hidden; border: 1px solid #e2e8f0; background: #fff; }
.gallery-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; }
.gallery-card figcaption { padding: 0.6rem 0.8rem; font-size: 0.85rem; font-weight: 600; color: var(--color-ink); }

/* 중간 배너 */
.mid-banner {
  border-radius: var(--radius);
  background: linear-gradient(120deg, var(--color-primary), #cfe3ee);
  color: #0f2733;
  padding: 2.5rem 1.5rem;
  text-align: center;
}

/* 블로그형 인용구 */
.blog-quote {
  margin: 2rem 0;
  padding: 1.5rem 1.75rem;
  border-left: 3px solid var(--color-primary-dark);
  background: rgba(160, 196, 216, 0.08);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.blog-quote p {
  font-size: 1.05rem;
  font-style: italic;
  color: var(--color-ink);
  line-height: 1.7;
  margin: 0 0 0.6rem;
}
.blog-quote cite { font-style: normal; font-size: 0.85rem; font-weight: 700; color: var(--color-primary-dark); }

/* FAQ 아코디언 */
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  padding: 1rem 0;
  border-bottom: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item[open] summary { color: var(--color-primary-dark); }
.faq-item p { padding: 0 0 1rem; color: #475569; font-size: 0.95rem; }

/* 플로팅 전화/문자 버튼 */
.floating-bar {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.floating-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 60px;
  height: 60px;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #0f2733;
  box-shadow: 0 8px 20px -6px rgba(15, 23, 42, 0.35);
  font-size: 0.7rem;
  font-weight: 700;
}
.floating-btn:hover { background: var(--color-primary-dark); }

/* 프로세스 스텝 */
.step-circle {
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: #0f2733;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
}