/* ==========================================================================
   We Place — Common Design System
   파일: /assets/css/common.css
   원칙: 뼈대는 하나, 옷만 갈아입는다.
         - 베이스 팔레트와 타이포는 모든 페이지 공통
         - 페이지별 텐션은 <body class="tone-xxx">로 스위치

   업데이트 이력:
   - 2026-04: 모바일 타이포 토큰 한국어 기준으로 정렬, keep-all/br-d/br-m 유틸 신설
   ========================================================================== */


/* --------------------------------------------------------------------------
   1. Font Import
   -------------------------------------------------------------------------- */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+KR:wght@400;500;600;700&display=swap');


/* --------------------------------------------------------------------------
   2. Design Tokens (CSS Variables)
   -------------------------------------------------------------------------- */
:root {
  /* === Base Palette — 모든 페이지 공통 === */
  --color-ink:          #0F1724;
  --color-ink-soft:     #3A4252;
  --color-ink-mute:     #8A8F98;
  --color-line:         #E6E3DE;
  --color-paper:        #F6F3EE;
  --color-paper-soft:   #FBF9F5;
  --color-white:        #FFFFFF;
  --color-dark:         #0F1724;
  --color-dark-soft:    #1A2130;

  /* === Accent — 기본값은 Signal Blue === */
  --color-accent:       #4A5FE8;
  --color-accent-soft:  #ECEEFD;
  --color-accent-ink:   #2D3FB8;

  /* === Typography === */
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-serif: 'Noto Serif KR', 'Pretendard', serif;
  --font-head: var(--font-sans);

  /* === Type Scale (Mobile First, 한국어 기준 정돈) === */
  --fs-display:  30px;   /* 헤드라인 영문 36 → 한글 30 */
  --fs-h1:       24px;
  --fs-h2:       20px;
  --fs-h3:       18px;
  --fs-body-l:   16px;
  --fs-body:     15px;
  --fs-caption:  13px;

  --lh-tight:    1.3;
  --lh-normal:   1.55;
  --lh-loose:    1.75;

  --ls-tight:    -0.02em;
  --ls-normal:   0;
  --ls-wide:     0.03em;

  /* === Layout === */
  --max-w:       1120px;
  --max-w-text:  720px;
  --gap-sm:      12px;
  --gap-md:      20px;
  --gap-lg:      32px;
  --gap-xl:      56px;
  --gap-2xl:     96px;

  --radius-sm:   8px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --radius-pill: 999px;

  --shadow-sm:   0 1px 2px rgba(15,23,36,.04), 0 1px 3px rgba(15,23,36,.06);
  --shadow-md:   0 4px 12px rgba(15,23,36,.06), 0 2px 4px rgba(15,23,36,.04);
  --shadow-lg:   0 12px 32px rgba(15,23,36,.08), 0 4px 8px rgba(15,23,36,.04);

  --ease:        cubic-bezier(.2,.7,.2,1);
}

/* === 좁은 모바일 (iPhone SE, 갤럭시 S20 등) — 한 번 더 다운 === */
@media (max-width: 380px) {
  :root {
    --fs-display:  26px;
    --fs-h1:       22px;
    --fs-h2:       19px;
  }
}

/* === Desktop Scale (변경 없음) === */
@media (min-width: 768px) {
  :root {
    --fs-display:  56px;
    --fs-h1:       40px;
    --fs-h2:       30px;
    --fs-h3:       20px;
    --fs-body-l:   18px;
    --fs-body:     16px;
    --fs-caption:  14px;
  }
}


/* --------------------------------------------------------------------------
   3. Tone Classes — 페이지별 텐션 스위치
   -------------------------------------------------------------------------- */

.tone-default {
  --color-accent:      #4A5FE8;
  --color-accent-soft: #ECEEFD;
  --color-accent-ink:  #2D3FB8;
  --font-head:         var(--font-sans);
  --ls-head:           var(--ls-tight);
  --lh-head:           var(--lh-tight);
}

.tone-calm {
  --color-accent:      #7A9684;
  --color-accent-soft: #EAF0EC;
  --color-accent-ink:  #4E6B58;
  --font-head:         var(--font-serif);
  --ls-head:           0;
  --lh-head:           1.4;
}

.tone-premium {
  --color-accent:      #A17A3E;
  --color-accent-soft: #F3EDE2;
  --color-accent-ink:  #6E4F21;
  --font-head:         var(--font-serif);
  --ls-head:           0.01em;
  --lh-head:           1.45;
}

.tone-urgency {
  --color-accent:      #E8553A;
  --color-accent-soft: #FCEAE5;
  --color-accent-ink:  #B93921;
  --font-head:         var(--font-sans);
  --ls-head:           -0.025em;
  --lh-head:           1.25;
}

.tone-industrial {
  --color-accent:      #4A5568;
  --color-accent-soft: #E6E8EC;
  --color-accent-ink:  #2D3748;
  --font-head:         var(--font-sans);
  --ls-head:           -0.015em;
  --lh-head:           1.3;
}

.tone-premium,
.tone-calm {
  --lh-normal: 1.8;
}


/* --------------------------------------------------------------------------
   4. Reset & Base
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* 한국어 줄바꿈 안전망 — 사이트 전체 기본 */
  word-break: keep-all;
  overflow-wrap: break-word;
}
img, svg, video { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
ul, ol { padding: 0; margin: 0; list-style: none; }
p { margin: 0 0 1em; }


/* --------------------------------------------------------------------------
   5. Typography Utilities
   -------------------------------------------------------------------------- */
.t-display {
  font-family: var(--font-head);
  font-size: var(--fs-display);
  line-height: var(--lh-head, var(--lh-tight));
  letter-spacing: var(--ls-head, var(--ls-tight));
  font-weight: 700;
  margin: 0 0 .4em;
}
.t-h1 {
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  line-height: var(--lh-head, var(--lh-tight));
  letter-spacing: var(--ls-head, var(--ls-tight));
  font-weight: 700;
  margin: 0 0 .5em;
}
.t-h2 {
  font-family: var(--font-head);
  font-size: var(--fs-h2);
  line-height: var(--lh-head, 1.35);
  letter-spacing: var(--ls-head, var(--ls-tight));
  font-weight: 700;
  margin: 0 0 .5em;
}
.t-h3 {
  font-family: var(--font-sans);
  font-size: var(--fs-h3);
  line-height: 1.4;
  font-weight: 600;
  margin: 0 0 .5em;
}
.t-lead {
  font-size: var(--fs-body-l);
  line-height: var(--lh-loose);
  color: var(--color-ink-soft);
}
.t-caption {
  font-size: var(--fs-caption);
  color: var(--color-ink-mute);
  letter-spacing: var(--ls-wide);
}
.t-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: .8em;
}
.t-accent { color: var(--color-accent); }
.t-mute   { color: var(--color-ink-mute); }


/* --------------------------------------------------------------------------
   6. Layout
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}
.container-narrow {
  width: 100%;
  max-width: var(--max-w-text);
  margin: 0 auto;
  padding: 0 20px;
}
.section {
  padding: var(--gap-xl) 0;
}
.section-lg {
  padding: var(--gap-2xl) 0;
}
@media (min-width: 768px) {
  .container, .container-narrow { padding: 0 32px; }
}

.bg-paper      { background: var(--color-paper); }
.bg-paper-soft { background: var(--color-paper-soft); }
.bg-white      { background: var(--color-white); }
.bg-dark       { background: var(--color-dark); color: var(--color-paper); }
.bg-dark .t-lead { color: rgba(255,255,255,.7); }
.bg-accent-soft { background: var(--color-accent-soft); }


/* --------------------------------------------------------------------------
   7. Buttons (CTA)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 600;
  border-radius: var(--radius-pill);
  transition: transform .2s var(--ease), background .2s var(--ease), box-shadow .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-ink);
  color: var(--color-paper);
}
.btn-primary:hover { background: #000; box-shadow: var(--shadow-md); }

.btn-accent {
  background: var(--color-accent);
  color: #fff;
}
.btn-accent:hover { background: var(--color-accent-ink); box-shadow: var(--shadow-md); }

.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid var(--color-ink);
}
.btn-ghost:hover { background: var(--color-ink); color: var(--color-paper); }

.btn-lg  { padding: 18px 32px; font-size: var(--fs-body-l); }
.btn-sm  { padding: 10px 18px; font-size: var(--fs-caption); }

.btn-kakao {
  background: #FEE500;
  color: #181600;
}
.btn-kakao:hover { background: #FFDC00; }


/* --------------------------------------------------------------------------
   8. Cards
   -------------------------------------------------------------------------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.card-title {
  font-size: var(--fs-h3);
  font-weight: 600;
  margin: 0 0 8px;
  color: var(--color-ink);
}
.card-body {
  font-size: var(--fs-body);
  color: var(--color-ink-soft);
  line-height: var(--lh-normal);
}

.tone-premium .card,
.tone-calm .card {
  padding: 32px;
  border-radius: var(--radius-lg);
}


/* --------------------------------------------------------------------------
   9. Grid Patterns
   -------------------------------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--gap-md);
}
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}


/* --------------------------------------------------------------------------
   10. Header & Footer
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246,243,238,.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}
.site-logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-ink);
}
.site-logo .logo-comma { color: var(--color-accent); }
.site-logo .logo-dot   { color: var(--color-accent); }
.site-nav {
  display: none;
  gap: 28px;
}
.site-nav a {
  font-size: var(--fs-caption);
  font-weight: 500;
  color: var(--color-ink-soft);
}
.site-nav a:hover { color: var(--color-ink); }
@media (min-width: 768px) {
  .site-nav { display: flex; }
}

.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,.7);
  padding: var(--gap-xl) 0 var(--gap-md);
  font-size: var(--fs-caption);
}
.site-footer a { color: rgba(255,255,255,.85); }
.site-footer a:hover { color: #fff; }
.site-footer__cols {
  display: grid;
  gap: var(--gap-lg);
  grid-template-columns: 1fr;
  margin-bottom: var(--gap-lg);
}
@media (min-width: 768px) {
  .site-footer__cols { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.site-footer__brand {
  font-family: var(--font-serif);
  font-size: 22px;
  color: #fff;
  margin-bottom: 12px;
}
.site-footer__title {
  font-size: var(--fs-caption);
  color: rgba(255,255,255,.5);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: 12px;
}
.site-footer__links li { margin-bottom: 8px; }
.site-footer__bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: var(--gap-md);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  color: rgba(255,255,255,.45);
}


/* --------------------------------------------------------------------------
   11. Section Patterns — 반복 사용 블록
   -------------------------------------------------------------------------- */

/* Hero (light) */
.hero {
  padding: var(--gap-xl) 0 var(--gap-2xl);
  text-align: center;
}
.hero__title {
  font-family: var(--font-head);
  font-size: var(--fs-display);
  line-height: var(--lh-head, var(--lh-tight));
  letter-spacing: var(--ls-head, var(--ls-tight));
  font-weight: 700;
  margin: 0 auto .5em;
  max-width: 18ch;       /* 모바일에서 좀 더 좁게 */
}
@media (min-width: 768px) {
  .hero__title { max-width: 22ch; }
}
.hero__lead {
  font-size: var(--fs-body-l);
  line-height: var(--lh-loose);
  color: var(--color-ink-soft);
  max-width: 38ch;       /* 모바일에서 좀 더 좁게 */
  margin: 0 auto var(--gap-lg);
}
@media (min-width: 768px) {
  .hero__lead { max-width: 48ch; }
}
.hero__cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Hero over dark image (메인 스타일) */
.hero-dark {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--color-dark);
  overflow: hidden;
}
.hero-dark::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(15,23,36,.55), rgba(15,23,36,.85));
  z-index: 1;
}
.hero-dark__bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  z-index: 0;
}
.hero-dark__inner {
  position: relative; z-index: 2;
  padding: 0 20px;
  text-align: center;
}
.hero-dark__title {
  font-family: var(--font-head);
  font-size: var(--fs-display);
  font-weight: 700;
  line-height: var(--lh-head, 1.25);
  letter-spacing: var(--ls-head, var(--ls-tight));
  margin: 0 0 .6em;
}

/* Symptom List */
.symptom-list {
  max-width: 640px;
  margin: 0 auto;
}
.symptom-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  font-size: var(--fs-body);
  color: var(--color-ink-soft);
}
.symptom-list li::before {
  content: '✓';
  flex-shrink: 0;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  margin-top: 1px;
}

/* FAQ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  margin-bottom: 10px;
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  padding: 18px 22px;
  font-size: var(--fs-body-l);
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--color-ink-mute);
  transition: transform .2s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item__body {
  padding: 0 22px 22px;
  color: var(--color-ink-soft);
  line-height: var(--lh-loose);
  font-size: var(--fs-body);
}

/* Closing CTA */
.cta-block {
  background: var(--color-dark);
  color: var(--color-paper);
  border-radius: var(--radius-lg);
  padding: var(--gap-xl) var(--gap-md);
  text-align: center;
}
.cta-block__title {
  font-family: var(--font-head);
  font-size: var(--fs-h1);
  line-height: var(--lh-head, 1.3);
  margin: 0 0 .5em;
  color: #fff;
}
.cta-block__lead {
  color: rgba(255,255,255,.7);
  font-size: var(--fs-body-l);
  max-width: 40ch;
  margin: 0 auto var(--gap-md);
}
.cta-block .btn-ghost {
  color: #fff;
  border-color: rgba(255,255,255,.4);
}
.cta-block .btn-ghost:hover {
  background: #fff;
  color: var(--color-ink);
}

/* Internal Links Block */
.related-links {
  background: var(--color-paper-soft);
  border-top: 1px solid var(--color-line);
  padding: var(--gap-lg) 0;
}
.related-links__title {
  font-size: var(--fs-caption);
  color: var(--color-ink-mute);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.related-links__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .related-links__grid { grid-template-columns: repeat(3, 1fr); }
}
.related-link {
  display: block;
  padding: 18px 20px;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.related-link:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}
.related-link__label {
  font-size: var(--fs-caption);
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: var(--ls-wide);
  margin-bottom: 6px;
  text-transform: uppercase;
}
.related-link__title {
  font-size: var(--fs-body-l);
  font-weight: 600;
  color: var(--color-ink);
}


/* --------------------------------------------------------------------------
   12. Utilities
   -------------------------------------------------------------------------- */
.text-center { text-align: center; }
.text-left   { text-align: left; }
.mt-0  { margin-top: 0; }
.mt-sm { margin-top: var(--gap-sm); }
.mt-md { margin-top: var(--gap-md); }
.mt-lg { margin-top: var(--gap-lg); }
.mb-0  { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--gap-sm); }
.mb-md { margin-bottom: var(--gap-md); }
.mb-lg { margin-bottom: var(--gap-lg); }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0;
}

/* --- Mobile-safe line breaking ---------------------------------------------
   .keep-all : 한국어 단어 가운데서 끊기지 않게 (overflow-wrap도 함께 적용)
   .br-d     : 데스크탑에서만 줄바꿈 표시 — 모바일(≤720px)에선 자연 wrap
   .br-m     : 모바일에서만 줄바꿈 표시 — 거의 사용 X, 필요할 때만
   사용 예) "위플레이스가 일하는 방식<br class="br-d">을 봅니다."
   --------------------------------------------------------------------------- */
.keep-all { word-break: keep-all; overflow-wrap: break-word; }
.br-d { display: inline; }
.br-m { display: none; }
@media (max-width: 720px) {
  .br-d { display: none; }
  .br-m { display: inline; }
}

/* Fade in on load */
@media (prefers-reduced-motion: no-preference) {
  .fade-in { animation: fadeIn .8s var(--ease) both; }
  @keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}
