/* ============================================================
   어떤AI — 컴포넌트 스타일
   순서: 리셋 → 레이아웃 → 헤더 → 히어로/추천 → 카드 → 필터
        → 본문(prose) → 요금표 → FAQ → 푸터 → 반응형
   색·간격은 전부 tokens.css 의 변수를 씁니다.
   ============================================================ */

/* ---------- 리셋 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: var(--fw-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  word-break: keep-all;       /* 한글 단어 중간에서 줄바꿈되지 않게 */
  overflow-wrap: anywhere;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-weight: var(--fw-heading); line-height: 1.35; margin: 0 0 .5em; letter-spacing: -0.01em; }
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.25em; }
li { margin-bottom: .4em; }
:focus-visible { outline: 3px solid var(--primary-ring); outline-offset: 2px; border-radius: 4px; }

/* 스크린리더 전용 (접근성) */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -60px; z-index: 100;
  background: var(--primary); color: #fff; padding: 10px 16px;
  border-radius: var(--btn-radius); font-weight: var(--btn-weight);
  transition: top .15s;
}
.skip-link:focus { top: 8px; }

/* ---------- 레이아웃 ---------- */
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.section { padding: 56px 0; }
.section--surface { background: var(--surface); border-block: 1px solid var(--border); }
.section__head { margin-bottom: 28px; }
.section__head p { color: var(--sub); margin: 0; }

/* ---------- 버튼 (레시피 지정 규격) ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: var(--btn-radius);
  padding: var(--btn-padding);
  font-weight: var(--btn-weight);
  font-size: .95rem;
  font-family: inherit;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); border-color: var(--primary-dark); text-decoration: none; }
.btn--outline { background: transparent; color: var(--primary); }
.btn--outline:hover { background: var(--primary-soft); color: var(--primary-dark); }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--surface); border-color: var(--sub); }
.btn--sm { padding: 8px 14px; font-size: .875rem; }
.btn--block { width: 100%; }

/* ---------- 아이콘 (24x24, stroke 1.5) ---------- */
.icon {
  width: var(--icon-size); height: var(--icon-size);
  stroke: currentColor; stroke-width: var(--icon-stroke);
  fill: none; stroke-linecap: round; stroke-linejoin: round;
  flex: none;
}
.icon--sm { width: 18px; height: 18px; }

/* ---------- 헤더 ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header__inner { height: var(--header-h); display: flex; align-items: center; gap: 20px; }
.logo { display: flex; align-items: center; gap: 8px; font-weight: var(--fw-heading); font-size: 1.05rem; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo .icon { color: var(--primary); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--sub); font-weight: var(--fw-medium); font-size: .92rem;
  padding: 8px 12px; border-radius: var(--radius-sm);
}
.nav a:hover, .nav a[aria-current='page'] { color: var(--text); background: var(--surface); text-decoration: none; }
.nav a[aria-current='page'] { color: var(--primary); }

/* 모바일 메뉴 — JS 없이 details/summary 로 처리 */
.menu { margin-left: auto; display: none; position: relative; }
.menu summary { list-style: none; cursor: pointer; display: flex; padding: 8px; color: var(--sub); }
.menu summary::-webkit-details-marker { display: none; }
.menu__panel {
  position: absolute; right: 0; top: calc(100% + 8px); min-width: 190px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-md); box-shadow: var(--shadow-lg); padding: 6px;
}
.menu__panel a { display: block; padding: 10px 12px; border-radius: var(--radius-sm); color: var(--text); font-size: .95rem; }
.menu__panel a:hover { background: var(--surface); text-decoration: none; }

/* ---------- 히어로 + 추천 위젯 (홈 핵심) ---------- */
.hero {
  background: linear-gradient(180deg, var(--primary-soft) 0%, var(--bg) 100%);
  padding: 64px 0 48px;
  text-align: center;
}
.hero h1 { font-size: clamp(1.75rem, 5vw, 2.6rem); margin-bottom: 12px; }
.hero__sub { color: var(--sub); font-size: 1.05rem; max-width: 620px; margin: 0 auto 32px; }

.finder { max-width: 720px; margin: 0 auto; text-align: left; }
.finder__box {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md); padding: 16px;
}
.finder__label { display: block; font-weight: var(--fw-heading); font-size: .95rem; margin-bottom: 10px; }
.finder textarea {
  width: 100%; min-height: 92px; resize: vertical;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 14px 16px; font-family: inherit; font-size: 1rem; line-height: 1.6;
  color: var(--text); background: var(--bg);
}
.finder textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-ring); }
.finder__actions { display: flex; gap: 10px; margin-top: 12px; }
.finder__actions .btn { flex: 1; }

/* 예시 상황 칩 */
.examples { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.examples__label { width: 100%; text-align: center; color: var(--sub); font-size: .85rem; margin-bottom: 2px; }
.chip {
  border: 1px solid var(--border); background: var(--bg); color: var(--sub);
  border-radius: 999px; padding: 7px 14px; font-size: .85rem; font-family: inherit;
  cursor: pointer; transition: .15s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.chip[aria-pressed='true'] { background: var(--primary); border-color: var(--primary); color: #fff; }

/* ---------- 추천 결과 ---------- */
.results { margin-top: 40px; scroll-margin-top: calc(var(--header-h) + 16px); }
.results__head {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 8px; margin-bottom: 18px;
}
.results__head h2 { margin: 0; font-size: 1.25rem; }
.results__count { color: var(--sub); font-size: .9rem; }
.results__empty {
  border: 1px dashed var(--border); border-radius: var(--radius-md);
  padding: 28px; text-align: center; color: var(--sub);
}
.rank {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 999px;
  background: var(--primary); color: #fff; font-size: .8rem; font-weight: 700;
}
.rank--2 { background: var(--sub); }
.rank--3 { background: #9CA3AF; }
.why {
  background: var(--primary-soft); border-radius: var(--radius-sm);
  padding: 12px 14px; font-size: .9rem; color: var(--text); margin: 12px 0 0;
}
.why strong { color: var(--primary-dark); }

/* ---------- 카드 ---------- */
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(288px, 1fr)); }
.card {
  display: flex; flex-direction: column;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 20px;
  transition: box-shadow .15s, border-color .15s, transform .15s;
}
.card:hover { box-shadow: var(--shadow-md); border-color: #D1D5DB; transform: translateY(-2px); }
.card__top { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.card__title { font-size: 1.05rem; font-weight: var(--fw-heading); margin: 0; }
.card__title a { color: var(--text); }
.card__title a:hover { color: var(--primary); text-decoration: none; }
.card__vendor { font-size: .8rem; color: var(--sub); }
.card__desc { color: var(--sub); font-size: .9rem; margin: 0 0 14px; flex: 1; }
.card__foot {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding-top: 14px; border-top: 1px solid var(--border);
}
.card__price { font-size: .85rem; color: var(--text); font-weight: var(--fw-medium); }
.card__price span { color: var(--sub); font-weight: 400; }

/* 배지 */
.badge {
  display: inline-block; font-size: .72rem; font-weight: 700;
  padding: 3px 9px; border-radius: 999px; white-space: nowrap;
}
.badge--free { background: #ECFDF5; color: #047857; }
.badge--cat { background: var(--surface); color: var(--sub); border: 1px solid var(--border); }
.badge--paid { background: var(--surface); color: var(--sub); }

/* ---------- 검색 · 필터 · 정렬 바 ---------- */
.filters {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 16px; margin-bottom: 24px;
}
.filters__row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
.search {
  position: relative; flex: 1 1 260px; display: flex; align-items: center;
}
.search .icon { position: absolute; left: 12px; color: var(--sub); }
.search input {
  width: 100%; padding: 11px 14px 11px 44px;
  border: 1px solid var(--border); border-radius: var(--btn-radius);
  font-family: inherit; font-size: .95rem; color: var(--text); background: var(--bg);
}
.search input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-ring); }
.select {
  padding: 11px 14px; border: 1px solid var(--border); border-radius: var(--btn-radius);
  font-family: inherit; font-size: .9rem; color: var(--text); background: var(--bg); cursor: pointer;
}
.toggle { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--sub); cursor: pointer; white-space: nowrap; }
.toggle input { width: 16px; height: 16px; accent-color: var(--primary); cursor: pointer; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }

/* ---------- 본문 (가이드·도구 상세) ---------- */
.page-head { padding: 40px 0 24px; border-bottom: 1px solid var(--border); }
.page-head h1 { font-size: clamp(1.6rem, 4vw, 2.2rem); margin-bottom: 10px; }
.page-head .lede { color: var(--sub); font-size: 1.02rem; margin: 0; max-width: 760px; }
.page-head__meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 14px; }

.breadcrumb { font-size: .85rem; color: var(--sub); padding: 14px 0 0; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin: 0; padding: 0; }
.breadcrumb li::after { content: '›'; margin-left: 6px; color: var(--border); }
.breadcrumb li:last-child::after { content: ''; }
.breadcrumb a { color: var(--sub); }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 40px; padding: 36px 0 64px; align-items: start; }
.prose { max-width: 760px; }
.prose h2 {
  font-size: 1.35rem; margin-top: 2.2em; padding-top: .6em;
  border-top: 1px solid var(--border);
}
.prose h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.prose h3 { font-size: 1.08rem; margin-top: 1.8em; }
.prose ul li::marker { color: var(--primary); }

.callout {
  background: var(--surface); border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-sm); padding: 16px 18px; margin: 24px 0;
  font-size: .92rem;
}
.callout p:last-child { margin-bottom: 0; }
.callout--warn { border-left-color: #F59E0B; }

/* 장단점 2열 */
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 20px 0; }
.pros-cons > div { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 16px 18px; }
.pros-cons h3 { margin-top: 0; font-size: 1rem; display: flex; align-items: center; gap: 6px; }
.pros-cons ul { margin-bottom: 0; font-size: .92rem; }
.pros h3 { color: #047857; }
.cons h3 { color: #B45309; }

/* 단계(steps) */
.steps { list-style: none; padding: 0; }
.steps > li { border: 1px solid var(--border); border-radius: var(--radius-md); padding: 18px 20px; margin-bottom: 12px; }
.steps h3 { margin: 0 0 6px; font-size: 1rem; }
.steps p { margin: 0; color: var(--sub); font-size: .94rem; }

/* 사이드바 */
.side { position: sticky; top: calc(var(--header-h) + 20px); display: flex; flex-direction: column; gap: 16px; }
.side__box { border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px; background: var(--surface); }
.side__box h2 { font-size: .95rem; margin-bottom: 12px; }
.side__list { list-style: none; padding: 0; margin: 0; font-size: .92rem; }
.side__list li { margin-bottom: 8px; }

/* ---------- 요금제 표 ---------- */
.table-wrap { overflow-x: auto; margin: 18px 0; border: 1px solid var(--border); border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 480px; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
thead th { background: var(--surface); font-weight: var(--fw-heading); font-size: .85rem; color: var(--sub); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: var(--fw-medium); white-space: nowrap; }
td:nth-child(2) { color: var(--primary-dark); font-weight: var(--fw-medium); white-space: nowrap; }
td:last-child { color: var(--sub); }

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 14px 18px; margin-bottom: 10px; background: var(--bg);
}
.faq summary {
  cursor: pointer; font-weight: var(--fw-heading); font-size: .98rem;
  list-style: none; display: flex; justify-content: space-between; gap: 12px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; color: var(--primary); font-size: 1.3rem; line-height: 1; }
.faq details[open] summary::after { content: '−'; }
.faq details[open] summary { margin-bottom: 10px; }
.faq p { margin: 0; color: var(--sub); font-size: .94rem; }

/* ---------- CTA ---------- */
.cta {
  background: var(--primary-soft); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px; text-align: center; margin: 40px 0 0;
}
.cta h2 { margin-bottom: 8px; }
.cta p { color: var(--sub); margin-bottom: 18px; }

/* ---------- 푸터 ---------- */
.footer { background: var(--surface); border-top: 1px solid var(--border); padding: 44px 0 32px; margin-top: 64px; font-size: .9rem; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 28px; margin-bottom: 28px; }
.footer h2 { font-size: .88rem; color: var(--text); margin-bottom: 12px; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 7px; }
.footer a { color: var(--sub); }
.footer a:hover { color: var(--primary); }
.footer__desc { color: var(--sub); margin: 0; max-width: 320px; }
.footer__bottom { border-top: 1px solid var(--border); padding-top: 20px; color: var(--sub); display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between; }

/* ---------- 반응형 ---------- */
@media (max-width: 960px) {
  .layout { grid-template-columns: 1fr; gap: 32px; }
  .side { position: static; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav { display: none; }
  .menu { display: block; }
  .hero { padding: 44px 0 36px; }
  .section { padding: 40px 0; }
  .pros-cons { grid-template-columns: 1fr; }
  .finder__actions { flex-direction: column; }
  .grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}

/* 인쇄 시 불필요한 UI 제거 */
@media print {
  .header, .footer, .finder, .cta, .side { display: none; }
}