/* stylemt 공통 스타일.
   상단 nav + 페이지 컨테이너 + 공통 컴포넌트.
   각 페이지 template.html 이 <link rel="stylesheet" href="/assets/site.css"> 로 사용. */

:root {
  --fg: #1a1a1a;
  --muted: #6b6b73;
  --bg: #fff;
  --panel: #f7f7f9;
  --border: #e4e4ea;
  --accent: #0055aa;
  --accent-hover: #003c7a;
  --accent-soft: #e8f0fb;
  --warn: #cc8800;
  --ok: #007700;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
/* hidden 속성은 항상 display:none. (예: .perks-row{display:flex} 같은 클래스가
   브라우저 기본 [hidden] 규칙을 덮어 'hidden 인데 보이는' 문제를 막는다.
   요소를 보이려면 hidden 속성을 제거하면 된다.) */
[hidden] { display: none !important; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", sans-serif;
  color: var(--fg);
  background: var(--bg);
  line-height: 1.55;
  min-height: 100vh;
}

/* ========== 상단 nav ========== */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: .75rem 2rem;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-nav .brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  text-decoration: none;
  color: var(--fg);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.01em;
}
.site-nav .brand img {
  height: 32px;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
}
.site-nav .links {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
  align-items: center;
}
.site-nav .links a {
  color: var(--muted);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
  transition: color .15s ease;
}
.site-nav .links a:hover { color: var(--fg); }
.site-nav .links a.active { color: var(--fg); }
.site-nav .login-btn {
  background: var(--accent);
  color: #fff !important;
  padding: .5rem 1.25rem;
  border-radius: 999px;
  font-weight: 600;
  transition: background .15s ease, transform .15s ease;
}
.site-nav .login-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
}
/* 보조 로그인 링크 — 다른 nav 링크들과 톤 맞춤. Sign up (login-btn) 이 주
   CTA, Log in (nav-login) 이 부 CTA 라는 시각적 위계. */
.site-nav .nav-login {
  color: var(--muted);
  font-weight: 500;
}
.site-nav .nav-login.active,
.site-nav .nav-login:hover { color: var(--fg); }
/* 아바타 아이콘 — 로그인 상태 표시기 + /me 진입점.
   PNG (assets/avatar1.png) 의 라인아트만 alpha=255, 흰 배경은 alpha=0 으로
   인코딩되어 있어 mask 가 라인 부분만 노출 → 그 자리에 background-color
   가 색을 입힘. 단일 자산으로 두 상태 (logged-in: accent, logged-out:
   muted) 표현. */
.site-nav .avatar-icon-link {
  display: inline-block;
  width: 28px;
  height: 28px;
  vertical-align: middle;
  /* 평상시: 옆 nav 링크들과 톤 맞춰 차분히. 차이는 logged-in 이 약간 더
     진한 muted 톤, logged-out 은 더 옅은 회색 정도. 클릭 신호는 hover
     에서 강하게 (accent 색 + halo) — "버튼" 인지 명확히 인식되게. */
  background-color: var(--muted);
  outline: 0 solid transparent;
  outline-offset: 1px;
  border-radius: 50%;
  -webkit-mask: url(/assets/avatar1.png) center / contain no-repeat;
  mask: url(/assets/avatar1.png) center / contain no-repeat;
  cursor: pointer;
  transition: background-color .15s ease, transform .15s ease, outline-width .15s ease, outline-color .15s ease;
}
.site-nav .avatar-icon-link:hover {
  background-color: var(--accent);
  outline: 3px solid var(--accent-soft);
  transform: translateY(-1px);
}
/* logged-out: 평상시 더 옅은 회색. hover 시도 accent 로 점프해서
   "여기 클릭하면 로그인" 으로 안내. */
.site-nav .avatar-icon-link.muted {
  background-color: #cfd3da;
}
.site-nav .avatar-icon-link.muted:hover {
  background-color: var(--accent);
  outline: 3px solid var(--accent-soft);
}
/* 햄버거 버튼 — 데스크탑 숨김, 모바일에서만 노출 (아래 @media). */
.site-nav .nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
  width: 42px;
  height: 38px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.site-nav .nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--fg);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
/* 열림 시 X 모양 */
.site-nav.open .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-nav.open .nav-toggle-bar:nth-child(2) { opacity: 0; }
.site-nav.open .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 640px) {
  .site-nav { padding: .6rem 1rem; gap: 1rem; }
  .site-nav .nav-toggle { display: flex; }
  /* 링크들을 햄버거 드롭다운으로 — 기본 숨김, .open 일 때만 노출. */
  .site-nav .links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin-left: 0;
    padding: .4rem 1rem 1rem;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 10px 24px rgba(0,0,0,.08);
  }
  .site-nav.open .links { display: flex; }
  .site-nav .links a {
    padding: .85rem .25rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--border);
  }
  .site-nav .links a:last-child { border-bottom: none; }
  .site-nav .login-btn { text-align: center; margin-top: .6rem; }
}

/* ========== page 컨테이너 ========== */
.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
}
.page h1 {
  font-size: 2.2rem;
  letter-spacing: -.02em;
  margin: 0 0 .5rem;
}
.page .lead {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 0 2rem;
}

/* ========== 카드 ========== */
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  background: var(--bg);
  box-shadow: var(--shadow-sm);
}
.card h3 { margin: 0 0 .5rem; font-size: 1.05rem; }
.card p { color: var(--muted); margin: .25rem 0; }

/* ========== hero (랜딩 전용) ========== */
.hero {
  text-align: center;
  padding: 4rem 1rem 3rem;
}
.hero h1 {
  font-size: 3rem;
  letter-spacing: -.025em;
  margin: 0 0 1rem;
  background: linear-gradient(135deg, #1a1a1a 0%, #0055aa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 2rem;
}
.hero .cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: .85rem 2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: background .15s ease, transform .15s ease;
  box-shadow: var(--shadow-md);
}
.hero .cta:hover { background: var(--accent-hover); transform: translateY(-2px); }
.hero .cta.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  margin-left: .75rem;
  box-shadow: none;
}
.hero .cta.secondary:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
}
@media (max-width: 640px) {
  .hero { padding: 2.5rem 1rem 2rem; }
  .hero h1 { font-size: 2.2rem; }
  .hero p { font-size: 1rem; }
}

/* ========== feature grid ========== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.feature-grid .card { margin-bottom: 0; transition: transform .15s ease, box-shadow .15s ease; }
.feature-grid .card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.feature-grid .icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 8px;
  margin-bottom: .75rem;
  font-size: 1.1rem;
  font-weight: 700;
}

/* card 가 통째로 링크인 경우 (usecase 진입 등) */
a.card-link {
  display: block;
  text-decoration: none;
  color: inherit;
}
a.card-link:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

/* ========== 카드 태그 / 태그 필터 ========== */
.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin-top: .75rem;
}
.tag-pill {
  display: inline-flex;
  align-items: center;
  padding: .15rem .55rem;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.4;
  border: 1px solid transparent;
  white-space: nowrap;
}
.tag-pill.tag-category {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 400;
}
.tag-pill.tag-category[data-tag="basic"] {
  background: #f1f5f9;
  color: #475569;
}
.tag-pill.tag-category[data-tag="glossary"] {
  background: #dcfce7;
  color: #15803d;
}
.tag-pill.tag-category[data-tag="translation-memory"] {
  background: #ede9fe;
  color: #6d28d9;
}
.tag-pill.tag-category[data-tag="style"] {
  background: #e8f0fb;
  color: #0055aa;
}
.tag-pill.tag-type {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0 .25rem;
}
.tag-filter-group {
  display: flex;
  flex-direction: column;
  gap: .25rem;
  min-width: 9rem;
}
.tag-filter-label {
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--muted);
}
.tag-filter-select {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--fg);
  padding: .45rem 2rem .45rem .8rem;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position:
    calc(100% - 16px) 50%,
    calc(100% - 11px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  transition: border-color .12s ease, color .12s ease;
}
.tag-filter-select:hover { border-color: var(--accent); }
.tag-filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* JS 가 .is-hidden 토글로 필터링 */
.feature-grid .card.is-hidden { display: none; }

/* ========== usecase (feature 상세) ========== */
.crumbs { margin: 0 0 1rem; font-size: .9rem; }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--fg); }

.usecase-compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin: 2rem 0 3rem;
}
.usecase-compare > h2 {
  grid-column: 1 / -1;
  font-size: 1.5rem;
  margin: 0;
  letter-spacing: -.01em;
}
.usecase-shot { margin: 0; display: flex; flex-direction: column; }
.usecase-shot .shot-frame {
  position: relative;
  aspect-ratio: 3 / 4;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(45deg, var(--panel) 0 12px, #fff 12px 24px);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.usecase-shot .shot-frame::before {
  content: attr(data-label);
  position: absolute;
  inset: auto 0 0 0;
  padding: .4rem .6rem;
  background: rgba(255,255,255,.85);
  font-size: .75rem;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--border);
}
.usecase-shot .shot-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #fff;
}
.usecase-shot .shot-frame.bad { border-color: #e6b3b3; }
.usecase-shot .shot-frame.good { border-color: #b3d8b3; }

.usecase-shot figcaption { padding: .9rem .25rem 0; }
.usecase-shot figcaption strong { display: block; margin: .35rem 0 .25rem; font-size: 1rem; }
.usecase-shot figcaption p { margin: 0; color: var(--muted); font-size: .9rem; }

.tag {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .15rem .5rem;
  border-radius: 999px;
}
.tag-neutral { background: var(--panel); color: var(--muted); }
.tag-bad { background: #fdecec; color: #b03030; }
.tag-good { background: #e6f4e6; color: #1f7a1f; }

.usecase-why { margin: 3rem 0; }
.usecase-why h2 { font-size: 1.5rem; margin: 0 0 .5rem; letter-spacing: -.01em; }

.usecase-cta {
  margin-top: 3rem;
  padding: 2rem 1.5rem;
  background: var(--accent-soft);
  border-radius: var(--radius);
  text-align: center;
}
.usecase-cta h2 { margin: 0 0 .5rem; font-size: 1.4rem; }
.usecase-cta p { color: var(--muted); margin: 0 0 1.25rem; }
.usecase-cta .cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: .7rem 1.5rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  transition: background .15s ease, transform .15s ease;
}
.usecase-cta .cta:hover { background: var(--accent-hover); transform: translateY(-1px); }
.usecase-cta .cta.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  margin-left: .5rem;
}
.usecase-cta .cta.secondary:hover { background: #fff; }

@media (max-width: 760px) {
  .usecase-compare { grid-template-columns: 1fr; }
}

/* ========== usecase: tone-consistency ========== */
.tone-compare {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 2rem 0 3rem;
}
.tone-compare > h2 {
  grid-column: 1 / -1;
  font-size: 1.5rem;
  margin: 0;
  letter-spacing: -.01em;
}
.tone-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  padding: 1.25rem 1.1rem 1.1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.tone-panel.source { background: var(--panel); }
.tone-panel.mixed { border-color: #e6b3b3; }
.tone-panel.unified { border-color: #b3d8b3; }
.tone-panel h3 {
  margin: 0 0 .6rem;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.panel-head {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  margin-bottom: .25rem;
}
.panel-tone-control {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--muted);
}
.panel-tone-control select {
  flex: 1;
  padding: .4rem .55rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: inherit;
  font-size: .9rem;
  background: var(--bg);
}
.panel-tone-control select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.mix-banner {
  display: block;
  font-size: .78rem;
  font-weight: 600;
  padding: .35rem .6rem;
  border-radius: 6px;
  margin: .25rem 0 .75rem;
}
.mix-banner.source { background: #eef0f3; color: var(--muted); }
.mix-banner.warning { background: #fdecec; color: #b03030; }
.mix-banner.success { background: #e6f4e6; color: #1f7a1f; }

.sentence-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: .92rem;
  line-height: 1.65;
}
.sentence-list li {
  padding: .4rem 0;
  border-bottom: 1px dashed var(--border);
}
.sentence-list li:last-child { border-bottom: 0; }

.hl-bad {
  background: #fdecec;
  color: #b03030;
  padding: 0 .2rem;
  border-radius: 3px;
  font-weight: 600;
}
.hl-good {
  background: #e6f4e6;
  color: #1f7a1f;
  padding: 0 .2rem;
  border-radius: 3px;
  font-weight: 600;
}
/* regional english — 영국식 / 미국식 구분 */
.hl-uk {
  background: #e6edf7;
  color: #1f4280;
  padding: 0 .2rem;
  border-radius: 3px;
  font-weight: 600;
}
.hl-us {
  background: #fff1d6;
  color: #8a5a00;
  padding: 0 .2rem;
  border-radius: 3px;
  font-weight: 600;
}

.tone-tag {
  display: inline-block;
  font-size: .68rem;
  font-weight: 700;
  padding: .1rem .45rem;
  border-radius: 999px;
  margin-left: .25rem;
  vertical-align: middle;
  letter-spacing: .03em;
}
.tone-tag.formal  { background: #e8f0fb; color: #0055aa; }
.tone-tag.polite  { background: #e6f4e6; color: #1f7a1f; }
.tone-tag.command { background: #fff1d6; color: #8a5a00; }
.tone-tag.casual  { background: #f1e6fb; color: #5b2a86; }

.hl-bad.formal,
.hl-good.formal   { background: #e8f0fb; color: #0055aa; }
.hl-bad.polite,
.hl-good.polite   { background: #e6f4e6; color: #1f7a1f; }
.hl-bad.command,
.hl-good.command  { background: #fff1d6; color: #8a5a00; }
.hl-bad.casual,
.hl-good.casual   { background: #f1e6fb; color: #5b2a86; }

@media (max-width: 760px) {
  .tone-compare { grid-template-columns: 1fr; }
}

/* ========== glossary cases ========== */
.glossary-cases {
  margin-top: 3rem;
}
.glossary-cases h2 {
  margin-bottom: .4rem;
}
.glossary-cases .section-lead {
  color: var(--muted);
  margin: 0 0 1.25rem;
  font-size: .95rem;
}

.glossary-table {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--panel);
}
.glossary-row {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 1.4fr 1.4fr;
  gap: 0;
  border-top: 1px solid var(--border);
}
.glossary-row:first-child { border-top: 0; }
.glossary-row .col {
  padding: .85rem 1rem;
  font-size: .92rem;
  line-height: 1.5;
  border-left: 1px solid var(--border);
}
.glossary-row .col:first-child { border-left: 0; }

.glossary-row.glossary-head {
  background: #f5f6f8;
  font-weight: 700;
  font-size: .85rem;
  letter-spacing: .02em;
  color: #444;
}
.glossary-row.glossary-head .col {
  padding: .65rem 1rem;
}

.glossary-row .col-term code {
  background: #eef1f5;
  padding: .1rem .35rem;
  border-radius: 4px;
  font-size: .82rem;
}
.glossary-row .col-term strong {
  display: inline-block;
  margin-top: .15rem;
}
.glossary-row .col-source { color: #444; }

@media (max-width: 880px) {
  .glossary-row { grid-template-columns: 1fr; }
  .glossary-row .col { border-left: 0; border-top: 1px dashed var(--border); }
  .glossary-row .col:first-child { border-top: 0; }
  .glossary-row.glossary-head { display: none; }
  .glossary-row .col::before {
    content: attr(data-label);
    display: block;
    font-size: .72rem;
    font-weight: 700;
    color: var(--muted);
    letter-spacing: .04em;
    text-transform: uppercase;
    margin-bottom: .25rem;
  }
}

/* 3-col 변형 (regional english 비교용) — 원문 / 미국식 / 영국식 */
.glossary-table.cols-3 .glossary-row {
  grid-template-columns: 1.2fr 1fr 1fr;
}
/* 2-col 변형 — 원문 / 단일 결과 (무료 번역처럼 선택지 없는 경우) */
.glossary-table.cols-2 .glossary-row {
  grid-template-columns: 1.2fr 2fr;
}
.region-flag {
  display: inline-block;
  font-size: .72rem;
  vertical-align: super;
  margin-left: .1rem;
  line-height: 1;
}
.glossary-cases .cases-subhead {
  margin: 1.75rem 0 .6rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: #333;
}
.glossary-cases .cases-subhead:first-of-type { margin-top: .25rem; }

/* ========== pricing tier ========== */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}
.tier {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease;
}
.tier:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.tier.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow-md);
}
.tier .tier-name { font-weight: 700; color: var(--muted); font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; }
.tier .tier-price { font-size: 2rem; font-weight: 700; margin: .5rem 0 1rem; letter-spacing: -.02em; }
.tier .tier-price small { font-size: .9rem; font-weight: 500; color: var(--muted); }
.tier ul { list-style: none; padding: 0; margin: 0 0 1.5rem; flex: 1; }
.tier li { padding: .35rem 0; color: var(--fg); font-size: .95rem; }
.tier li::before { content: "✓"; color: var(--accent); font-weight: 700; margin-right: .5rem; }
.tier .tier-cta {
  display: block;
  text-align: center;
  background: var(--panel);
  color: var(--fg);
  padding: .65rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  transition: background .15s ease;
}
.tier.featured .tier-cta { background: var(--accent); color: #fff; }
.tier .tier-cta:hover { background: var(--border); }
.tier.featured .tier-cta:hover { background: var(--accent-hover); }

/* ========== form (login) ========== */
.form-row { display: flex; flex-direction: column; gap: .35rem; margin-bottom: 1rem; }
.form-row label { font-weight: 600; font-size: .9rem; }
.form-row input {
  padding: .65rem .85rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--bg);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-row input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.primary-btn {
  background: var(--accent);
  color: #fff;
  border: 0;
  padding: .7rem 1.25rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease;
  width: 100%;
}
.primary-btn:hover:not(:disabled) { background: var(--accent-hover); }
.primary-btn:disabled { background: #aaa; cursor: not-allowed; }

.notice {
  padding: .75rem 1rem;
  background: var(--accent-soft);
  border-radius: 8px;
  color: var(--accent);
  font-size: .9rem;
  margin-bottom: 1rem;
}

/* ========== version bar ========== */
#version-bar {
  margin: 3rem auto 0;
  max-width: 960px;
  padding: .75rem 1rem;
  border-top: 1px dashed var(--border);
  color: var(--muted);
  font-size: .75rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  text-align: center;
  line-height: 1.5;
}
#version-bar .stale { color: var(--warn); font-weight: 700; }
#version-bar code { font-family: inherit; }

/* ========== site footer (통신판매업 신고 노출) ========== */
.site-footer {
  margin-top: 4rem;
  padding: 2rem 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
  background: var(--panel);
}
.site-footer .footer-inner {
  max-width: 960px;
  margin: 0 auto;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.7;
}
.site-footer .biz-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1rem;
  align-items: baseline;
  margin-bottom: .5rem;
}
/* span 뿐 아니라 첫 자리의 #version-bar div 까지 포함해 모든 자식 사이에 "·" 구분점.
   #version-bar 가 :empty 로 display:none 되면 그 ::after 도 함께 사라져 leading "·" 문제 없음. */
.site-footer .biz-row > *:not(:last-child)::after {
  content: "·";
  margin-left: 1rem;
  color: var(--border);
}
.site-footer .biz-row a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer .biz-row a:hover { color: var(--fg); text-decoration: underline; }
.site-footer .biz-links {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1rem;
  margin-top: .5rem;
  align-items: baseline;
}
.site-footer .biz-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}
.site-footer .biz-links a:hover { color: var(--fg); text-decoration: underline; }
.site-footer small {
  display: block;
  margin-top: .5rem;
  font-size: .72rem;
  color: var(--muted);
}

/* biz-row 첫 자리에 들어가 상호 표시까지 겸하는 version 슬롯.
   외부 #version-bar 의 기본 border/center/큰 margin 을 무력화하고,
   biz-row 의 다른 항목들과 동일한 폰트·색·크기로 표시 (튀지 않게). */
.site-footer .biz-row #version-bar {
  margin: 0;
  max-width: none;
  padding: 0;
  border: 0;
  text-align: left;
  font-size: inherit;
  color: inherit;
  font-family: inherit;
}
.site-footer .biz-row #version-bar code {
  font-family: inherit;
  font-size: inherit;
}
.site-footer #version-bar:empty { display: none; }