/* ============================================================
   ClairSOOM(클레어숨) - Bootstrap 5.3 테마 레이어

   부트스트랩 기본 스타일 위에 브랜드 색상과 커스텀 컴포넌트만
   덧입힌다. 부트스트랩의 --bs-* 변수를 덮어쓰는 방식이라
   다크 모드(data-bs-theme="dark")도 자동으로 따라온다.
   ============================================================ */

/* ---------------------------------------------------- 1. 디자인 토큰 */

:root {
  --brand-50:  #eff7ff;
  --brand-100: #dbecfe;
  --brand-200: #bfdefe;
  --brand-300: #93c9fd;
  --brand-400: #60acfa;
  --brand-500: #3b8ef6;
  --brand-600: #1f70e8;
  --brand-700: #1a59d5;
  --brand-800: #1c4bac;
  --brand-900: #1c4288;

  --brand: var(--brand-600);
  --brand-rgb: 31, 112, 232;

  --surface: #ffffff;
  --surface-alt: #f4f8fc;
  --surface-sunken: #eaf1f9;
  --hairline: rgba(16, 42, 67, .1);

  --shadow-sm: 0 1px 2px rgba(16, 42, 67, .06);
  --shadow-md: 0 6px 20px rgba(16, 42, 67, .09);
  --shadow-lg: 0 18px 48px rgba(16, 42, 67, .16);

  --radius-lg: 18px;

  /* 부트스트랩 전역 변수 덮어쓰기 */
  --bs-primary: var(--brand-600);
  --bs-primary-rgb: var(--brand-rgb);
  --bs-link-color: var(--brand-700);
  --bs-link-color-rgb: var(--brand-rgb);
  --bs-link-hover-color: var(--brand-800);
  --bs-border-color: var(--hairline);
  --bs-body-color: #1b2836;
  --bs-secondary-color: #56697c;
  --bs-body-font-family: "Pretendard", -apple-system, BlinkMacSystemFont,
                         "Apple SD Gothic Neo", "Malgun Gothic", "맑은 고딕",
                         system-ui, sans-serif;
  --bs-body-font-size: 1rem;
  --bs-body-line-height: 1.7;
  --bs-border-radius: .75rem;
  --bs-border-radius-lg: 1rem;
  --bs-border-radius-xl: 1.25rem;
}

[data-bs-theme="dark"] {
  --brand: var(--brand-400);
  --brand-rgb: 96, 172, 250;

  --surface: #141b24;
  --surface-alt: #101720;
  --surface-sunken: #0c121a;
  --hairline: rgba(255, 255, 255, .1);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, .5);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, .45);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, .6);

  --bs-body-bg: #0d141c;
  --bs-body-color: #d6e0eb;
  --bs-secondary-color: #97a8ba;
  --bs-emphasis-color: #f2f6fa;
  --bs-primary: var(--brand-400);
  --bs-primary-rgb: var(--brand-rgb);
  --bs-link-color: var(--brand-300);
  --bs-link-color-rgb: 147, 201, 253;
  --bs-link-hover-color: var(--brand-200);
  --bs-border-color: var(--hairline);
}

body {
  background: var(--bs-body-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 { letter-spacing: -.025em; font-weight: 700; }

.text-brand { color: var(--brand) !important; }
.bg-surface { background: var(--surface) !important; }
.bg-surface-alt { background: var(--surface-alt) !important; }

.skip-link {
  position: absolute;
  top: .5rem;
  left: .5rem;
  z-index: 2000;
  padding: .5rem 1rem;
  background: var(--brand-700);
  color: #fff;
  border-radius: .5rem;
}

/* ---------------------------------------------------- 2. 버튼 */

.btn { --bs-btn-font-weight: 600; --bs-btn-border-radius: 50rem; }

.btn-brand {
  --bs-btn-color: #fff;
  --bs-btn-bg: var(--brand-600);
  --bs-btn-border-color: var(--brand-600);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--brand-700);
  --bs-btn-hover-border-color: var(--brand-700);
  --bs-btn-active-bg: var(--brand-800);
  --bs-btn-active-border-color: var(--brand-800);
  --bs-btn-focus-shadow-rgb: var(--brand-rgb);
  box-shadow: 0 6px 16px rgba(var(--brand-rgb), .3);
}

.btn-brand-outline {
  --bs-btn-color: var(--brand-700);
  --bs-btn-bg: transparent;
  --bs-btn-border-color: var(--brand-200);
  --bs-btn-hover-color: var(--brand-800);
  --bs-btn-hover-bg: var(--brand-50);
  --bs-btn-hover-border-color: var(--brand-300);
  --bs-btn-focus-shadow-rgb: var(--brand-rgb);
}

[data-bs-theme="dark"] .btn-brand-outline {
  --bs-btn-color: var(--brand-200);
  --bs-btn-border-color: rgba(255, 255, 255, .18);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: rgba(var(--brand-rgb), .14);
  --bs-btn-hover-border-color: rgba(var(--brand-rgb), .5);
}

.btn-icon {
  --bs-btn-color: var(--bs-secondary-color);
  --bs-btn-border-color: var(--bs-border-color);
  --bs-btn-hover-color: var(--brand);
  --bs-btn-hover-bg: rgba(var(--brand-rgb), .1);
  --bs-btn-hover-border-color: rgba(var(--brand-rgb), .35);
  --bs-btn-padding-x: .7rem;
  --bs-btn-padding-y: .45rem;
  border-width: 1px;
  border-style: solid;
  line-height: 1.2;
}

.btn:not(.btn-icon):hover { transform: translateY(-1px); }
.btn { transition: transform .12s ease, background-color .15s ease, box-shadow .2s ease; }

/* ---------------------------------------------------- 3. 상단바 / 내비게이션 */

.topbar {
  background: var(--brand-900);
  color: rgba(255, 255, 255, .82);
  font-size: .82rem;
  padding: .45rem 0;
}
[data-bs-theme="dark"] .topbar { background: #0a1119; border-bottom: 1px solid var(--hairline); }

.site-nav {
  background: color-mix(in srgb, var(--bs-body-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--bs-border-color);
  padding-block: .55rem;
}

.navbar-brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(135deg, var(--brand-500), var(--brand-700));
  color: #fff;
  font-size: 1.05rem;
  box-shadow: 0 4px 12px rgba(var(--brand-rgb), .35);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-en { font-size: 1.05rem; letter-spacing: -.01em; }
.brand-ko {
  font-size: .68rem;
  font-weight: 600;
  color: var(--bs-secondary-color);
  letter-spacing: .06em;
}

/* 대분류 카드 */
.category-card { display: flex; flex-direction: column; height: 100%; }
.category-card .icon-badge { margin-bottom: 1rem; }
.category-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .5rem;
  padding: .45rem 0;
  border-top: 1px dashed var(--bs-border-color);
  color: var(--bs-secondary-color);
  font-size: .9rem;
  text-decoration: none;
}
.category-link:hover { color: var(--brand); }
.category-link em { font-style: normal; font-size: .82rem; opacity: .85; }

/* 포함 품목 뱃지 */
.item-pill {
  display: inline-block;
  padding: .2rem .65rem;
  border-radius: 50rem;
  border: 1px solid rgba(var(--brand-rgb), .35);
  color: var(--brand);
  font-size: .78rem;
  font-weight: 600;
}

/* 대분류 섹션 헤더 */
.category-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid rgba(var(--brand-rgb), .25);
  scroll-margin-top: 6rem;
}

.navbar .nav-link {
  --bs-nav-link-color: var(--bs-secondary-color);
  --bs-nav-link-hover-color: var(--brand);
  font-weight: 500;
  padding-inline: .9rem;
  border-radius: 50rem;
}
.navbar .nav-link.active {
  color: var(--brand) !important;
  font-weight: 700;
  background: rgba(var(--brand-rgb), .1);
}
.navbar .dropdown-menu {
  border-color: var(--bs-border-color);
  border-radius: 1rem;
  box-shadow: var(--shadow-md);
  padding: .5rem;
}
.navbar .dropdown-item { border-radius: .6rem; padding: .55rem .75rem; font-size: .93rem; }

@media (max-width: 991.98px) {
  .navbar-collapse { padding-top: .75rem; }
  .navbar .nav-link { padding-inline: .75rem; }
}

/* ---------------------------------------------------- 4. 히어로 */

.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 0 5.5rem;
  background:
    radial-gradient(900px 460px at 8% -20%, var(--brand-100), transparent 62%),
    linear-gradient(180deg, var(--brand-50) 0%, var(--bs-body-bg) 78%);
}
[data-bs-theme="dark"] .hero {
  background:
    radial-gradient(900px 460px at 8% -20%, rgba(var(--brand-rgb), .22), transparent 62%),
    linear-gradient(180deg, #101a26 0%, var(--bs-body-bg) 78%);
}

/* 배경에 흐릿하게 떠 있는 장식용 원 */
.hero::after {
  content: "";
  position: absolute;
  top: -120px;
  right: -140px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--brand-rgb), .22), transparent 68%);
  pointer-events: none;
}

.hero h1 { font-size: clamp(2rem, 4.4vw, 3rem); letter-spacing: -.04em; line-height: 1.25; }
.hero h1 em { font-style: normal; color: var(--brand); }
.hero-lead { max-width: 30rem; font-size: 1.06rem; color: var(--bs-secondary-color); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .85rem;
  border-radius: 50rem;
  background: var(--surface);
  border: 1px solid rgba(var(--brand-rgb), .35);
  color: var(--brand);
  font-size: .8rem;
  font-weight: 700;
}
[data-bs-theme="dark"] .eyebrow { background: rgba(var(--brand-rgb), .12); }

.quote-card {
  position: relative;
  z-index: 1;
  background: var(--surface);
  border: 1px solid var(--bs-border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.9rem;
}
.phone-link {
  display: inline-block;
  color: var(--brand);
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -.02em;
  text-decoration: none;
}
.phone-link:hover { color: var(--brand-700); }
[data-bs-theme="dark"] .phone-link:hover { color: var(--brand-300); }

/* ---------------------------------------------------- 5. 섹션 공통 */

.section { padding: 4.75rem 0; }
.section-alt { background: var(--surface-alt); }

.section-title { font-size: clamp(1.5rem, 2.6vw, 2rem); }
.section-sub { color: var(--bs-secondary-color); margin-top: .5rem; }

.page-head {
  padding: 3.5rem 0 2.75rem;
  background: linear-gradient(180deg, var(--brand-50), var(--bs-body-bg));
  border-bottom: 1px solid var(--bs-border-color);
}
[data-bs-theme="dark"] .page-head {
  background: linear-gradient(180deg, #101a26, var(--bs-body-bg));
}
.page-head h1 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-block: .8rem .6rem; }
.page-head .lead { color: var(--bs-secondary-color); max-width: 42rem; }

.breadcrumb { --bs-breadcrumb-divider-color: var(--bs-secondary-color); font-size: .85rem; }
.breadcrumb a { color: var(--bs-secondary-color); text-decoration: none; }
.breadcrumb a:hover { color: var(--brand); }

/* ---------------------------------------------------- 6. 카드 */

.card {
  --bs-card-bg: var(--surface);
  --bs-card-border-color: var(--bs-border-color);
  --bs-card-border-radius: var(--radius-lg);
  --bs-card-inner-border-radius: calc(var(--radius-lg) - 1px);
  --bs-card-spacer-x: 1.6rem;
  --bs-card-spacer-y: 1.6rem;
  transition: transform .16s ease, box-shadow .2s ease, border-color .2s ease;
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(var(--brand-rgb), .4);
}

.icon-badge {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 15px;
  background: rgba(var(--brand-rgb), .12);
  color: var(--brand);
  font-size: 1.5rem;
}
.icon-badge-lg { width: 68px; height: 68px; font-size: 2rem; border-radius: 19px; }

.price-tag { color: var(--brand); font-weight: 800; font-size: 1.15rem; }

.stat-value { color: var(--brand); font-size: 1.7rem; font-weight: 800; letter-spacing: -.03em; }
.stat-label { color: var(--bs-secondary-color); font-size: .85rem; }

.step-num {
  color: var(--brand);
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .1em;
  opacity: .75;
}

.stars { color: #f0a02a; letter-spacing: 2px; }

/* 체크 목록 */
.list-check { list-style: none; padding-left: 0; margin: 0; }
.list-check li { position: relative; padding-left: 1.7rem; margin-bottom: .5rem; color: var(--bs-secondary-color); }
.list-check li::before {
  content: "\F26E"; /* bi-check-lg */
  font-family: "bootstrap-icons";
  position: absolute;
  left: 0;
  top: .05rem;
  color: var(--brand);
  font-weight: 700;
}

/* ---------------------------------------------------- 7. 블로그 */

.post-item { padding: 1.6rem 0; border-bottom: 1px solid var(--bs-border-color); }
.post-item h2 { font-size: 1.35rem; }
.post-item h2 a { color: inherit; text-decoration: none; }
.post-item h2 a:hover { color: var(--brand); }

.chip {
  display: inline-block;
  padding: .25rem .7rem;
  border-radius: 50rem;
  background: rgba(var(--brand-rgb), .12);
  color: var(--brand);
  font-size: .78rem;
  font-weight: 700;
  text-decoration: none;
}
.chip:hover { background: rgba(var(--brand-rgb), .22); color: var(--brand); }

.tag-link { color: var(--bs-secondary-color); font-size: .82rem; font-weight: 600; text-decoration: none; }
.tag-link:hover, .tag-link.active { color: var(--brand); }

.post-body h2 { font-size: 1.4rem; margin: 2.4rem 0 .8rem; }
.post-body h2:first-child { margin-top: 0; }
.post-body p { font-size: 1.03rem; line-height: 1.95; margin-bottom: 1rem; color: var(--bs-body-color); }

.post-nav-card {
  display: block;
  height: 100%;
  padding: 1.1rem 1.3rem;
  border: 1px solid var(--bs-border-color);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: border-color .18s ease, background .18s ease;
}
a.post-nav-card:hover { border-color: rgba(var(--brand-rgb), .45); background: rgba(var(--brand-rgb), .06); }
.post-nav-card.disabled { background: var(--surface-alt); color: var(--bs-secondary-color); }

.sticky-side { position: sticky; top: 5.5rem; }
@media (max-width: 991.98px) { .sticky-side { position: static; } }

.side-card-accent {
  background: linear-gradient(160deg, rgba(var(--brand-rgb), .1), rgba(var(--brand-rgb), .03));
  border-color: rgba(var(--brand-rgb), .3);
}

.list-group-item {
  --bs-list-group-bg: transparent;
  --bs-list-group-border-color: transparent;
  --bs-list-group-action-hover-bg: rgba(var(--brand-rgb), .08);
  --bs-list-group-action-hover-color: var(--brand);
  --bs-list-group-active-bg: rgba(var(--brand-rgb), .14);
  --bs-list-group-active-color: var(--brand);
  --bs-list-group-active-border-color: transparent;
  border-radius: .6rem !important;
  font-size: .93rem;
}

/* ---------------------------------------------------- 8. 폼 / 아코디언 */

.form-control, .form-select {
  border-radius: .7rem;
  padding: .7rem .9rem;
  background: var(--surface);
  border-color: var(--bs-border-color);
}
.form-control:focus, .form-select:focus {
  border-color: rgba(var(--brand-rgb), .6);
  box-shadow: 0 0 0 .22rem rgba(var(--brand-rgb), .2);
}
.form-label { font-weight: 700; font-size: .9rem; }

.search-input { border-radius: 50rem !important; padding-left: 2.6rem; }
.search-wrap { position: relative; }
.search-wrap .bi-search {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--bs-secondary-color);
  pointer-events: none;
  z-index: 4;
}

.accordion {
  --bs-accordion-bg: var(--surface);
  --bs-accordion-border-color: var(--bs-border-color);
  --bs-accordion-border-radius: var(--radius-lg);
  --bs-accordion-inner-border-radius: calc(var(--radius-lg) - 1px);
  --bs-accordion-btn-focus-box-shadow: 0 0 0 .2rem rgba(var(--brand-rgb), .2);
  --bs-accordion-active-bg: rgba(var(--brand-rgb), .09);
  --bs-accordion-active-color: var(--brand);
  --bs-accordion-btn-padding-y: 1.05rem;
}
.accordion-item { margin-bottom: .6rem; border-radius: var(--radius-lg) !important; overflow: hidden; }
.accordion-button { font-weight: 700; font-size: 1rem; }
.accordion-body { color: var(--bs-secondary-color); }

.callout {
  padding: 1.5rem 1.7rem;
  border-radius: var(--radius-lg);
  background: rgba(var(--brand-rgb), .09);
  border: 1px solid rgba(var(--brand-rgb), .22);
}

/* ---------------------------------------------------- 9. CTA / 푸터 */

.cta-band {
  padding: 3.5rem 0;
  background: linear-gradient(120deg, var(--brand-700), var(--brand-500));
  color: #fff;
}
.cta-band h2 { font-size: clamp(1.35rem, 2.4vw, 1.75rem); }
.cta-band p { color: rgba(255, 255, 255, .88); margin: 0; }

.site-footer { background: #101922; color: #a9bacb; }
[data-bs-theme="dark"] .site-footer { background: #080d13; border-top: 1px solid var(--hairline); }
.footer-brand { color: #fff; font-weight: 800; font-size: 1.05rem; }
.footer-tagline { font-size: .9rem; }
.footer-meta li { font-size: .85rem; margin-bottom: .4rem; color: #8397aa; }
.footer-head { color: #fff; font-size: .92rem; margin-bottom: .9rem; }
.footer-links li { margin-bottom: .55rem; font-size: .9rem; }
.footer-links a { color: inherit; text-decoration: none; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  color: #7d90a3;
  font-size: .82rem;
}

.float-cta { position: fixed; right: 1.4rem; bottom: 1.4rem; z-index: 1030; }
@media (max-width: 575.98px) {
  .float-cta { right: .9rem; bottom: .9rem; --bs-btn-font-size: .9rem; }
}

/* ---------------------------------------------------- 10. 기타 */

.error-code {
  font-size: clamp(3.5rem, 9vw, 5rem);
  font-weight: 800;
  color: rgba(var(--brand-rgb), .35);
  letter-spacing: -.04em;
  line-height: 1;
}

@media (prefers-reduced-motion: reduce) {
  .btn:hover, .card-hover:hover { transform: none; }
  * { transition: none !important; }
}