/* 코레업테크 샘플 사이트 공통 스타일 (2026-11-05) */
/* 2026-11-05 — 종이 노트 느낌(swyx.io 참고)으로 색 바꿈. 이전 값은 layouts/_보관/site_20261105_모션판.css */
:root {
  --navy: #0A243F;
  --teal: #0B7492;
  --cyan: #22B8CF;
  --ochre: #B08328;
  --rust: #A4452F;
  --bg: #F5F0E7;
  --bg-soft: #EEE7DA;
  --line: #E0D6C6;
  --text: #26221D;
  --muted: #6B6357;
  --card: #FBF8F2;
  --accent: var(--teal);
  --shadow: none;
  --logo: url("logo.svg");
  --mark: url("mark.svg");
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #191714; --bg-soft: #211E1A; --line: #37322B; --text: #EDE6DA; --muted: #A79E90;
    --card: #221F1A; --accent: var(--cyan); --shadow: none; --ochre: #D6A84B; --rust: #D9765E;
    --logo: url("logo_dark.svg"); --mark: url("mark_dark.svg");
  }
}
:root[data-theme="dark"] {
  --bg: #191714; --bg-soft: #211E1A; --line: #37322B; --text: #EDE6DA; --muted: #A79E90;
  --card: #221F1A; --accent: var(--cyan); --shadow: none; --ochre: #D6A84B; --rust: #D9765E;
  --logo: url("logo_dark.svg"); --mark: url("mark_dark.svg");
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font-family: "Pretendard Variable", Pretendard, "Malgun Gothic", sans-serif;
  font-size: 17px; line-height: 1.65; word-break: keep-all;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }
.en { font-family: Poppins, "Pretendard Variable", sans-serif; letter-spacing: .01em; }

/* 머리글 */
header {
  position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
}
header .nav { border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: block; width: 190px; height: 36px; background: var(--logo) left center / contain no-repeat; }
.brand span { position: absolute; left: -9999px; }
.menu { display: flex; gap: 26px; align-items: center; font-size: 15px; }
.menu a { text-decoration: none; color: var(--muted); }
.menu a:hover { color: var(--text); }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 22px; border-radius: 999px;
  font-weight: 600; text-decoration: none; border: 1px solid transparent; cursor: pointer; font-size: 16px;
}
.btn-primary { background: var(--text); color: var(--bg); }
:root[data-theme="dark"] .btn-primary { background: var(--cyan); color: #04121F; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn-primary { background: var(--cyan); color: #04121F; } }
.btn-ghost { border-color: var(--line); color: var(--text); background: transparent; }
.menu .btn { padding: 8px 16px; font-size: 14px; color: var(--bg); border-radius: 8px; }
:root[data-theme="dark"] .menu .btn { color: #04121F; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .menu .btn { color: #04121F; } }
.theme {
  width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--line); background: transparent;
  color: var(--muted); cursor: pointer; font-size: 16px;
}

/* 첫 화면 */
.hero { padding-top: 88px; padding-bottom: 72px; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.eyebrow { font-size: 14px; font-weight: 600; color: var(--accent); letter-spacing: .14em; }
h1 { font-size: clamp(32px, 4.6vw, 52px); line-height: 1.25; margin: 14px 0 20px; letter-spacing: -.02em; }
h1 em { font-style: normal; color: var(--accent); }
.lead { font-size: 19px; color: var(--muted); margin: 0 0 32px; max-width: 34em; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; }
.four { margin-top: 36px; display: flex; gap: 10px; flex-wrap: wrap; }
.four span { font-size: 14px; padding: 6px 12px; border-radius: 8px; background: var(--bg-soft); color: var(--muted); }
.four b { color: var(--text); }
.hero-mark { aspect-ratio: 1; width: 100%; max-width: 420px; justify-self: center;
  background: var(--mark) center / contain no-repeat; animation: knot 1.6s cubic-bezier(.2,.8,.2,1) both; }
@keyframes knot { from { opacity: 0; transform: scale(.82) rotate(-18deg); } to { opacity: 1; transform: none; } }

/* 섹션 공통 */
section { padding: 80px 0; }
.soft { background: var(--bg-soft); }
.sec-head { max-width: 640px; margin-bottom: 40px; }
.sec-head h2 { font-size: clamp(26px, 3.2vw, 36px); line-height: 1.3; margin: 8px 0 12px; letter-spacing: -.01em; }
.sec-head p { color: var(--muted); margin: 0; }

/* 4C */
.grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.c-card {
  background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 26px 24px;
  box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .2s, border-color .2s;
}
.c-card:hover { transform: translateY(-4px); border-color: var(--accent); }
.c-tag { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; }
.c-dot { width: 38px; height: 38px; border-radius: 50%; display: grid; place-items: center;
  font: 700 18px Poppins, sans-serif; color: #fff; }
.c-name { font: 600 15px Poppins, sans-serif; color: var(--muted); }
.c-card h3 { font-size: 21px; margin: 0 0 10px; }
.c-card p { color: var(--muted); font-size: 15.5px; margin: 0 0 18px; flex: 1; }
.c-card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; }
.c-card li { font-size: 13px; padding: 4px 10px; border-radius: 6px; background: var(--bg-soft); color: var(--muted); }
.teal { background: var(--teal); } .navy { background: var(--navy); }
:root[data-theme="dark"] .navy { background: #2A5584; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .navy { background: #2A5584; } }

/* 간이 진단 */
.check { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center;
  background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 40px; box-shadow: var(--shadow); }
.check h2 { margin: 6px 0 10px; font-size: 28px; }
.check p { color: var(--muted); margin: 0; }
.check form { display: flex; gap: 10px; flex-wrap: wrap; }
.check input {
  flex: 1 1 240px; padding: 14px 18px; border-radius: 999px; border: 1px solid var(--line);
  background: var(--bg); color: var(--text); font: inherit; font-size: 16px;
}
.check small { display: block; margin-top: 12px; color: var(--muted); font-size: 13.5px; }
.notice { margin-top: 12px; font-size: 14px; color: var(--accent); min-height: 1.4em; }

/* 영상 */
.videos { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.video { text-decoration: none; display: block; }
.thumb { aspect-ratio: 16/9; border-radius: 14px; overflow: hidden; background: var(--bg-soft); position: relative; }
.thumb img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s; }
.video:hover .thumb img { transform: scale(1.04); }
.video h3 { font-size: 16.5px; line-height: 1.45; margin: 12px 0 4px; }
.video time { font-size: 13.5px; color: var(--muted); }
.more { margin-top: 28px; }

/* 절차 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: s; }
.step { padding: 24px; border-radius: 16px; border: 1px solid var(--line); background: var(--card); }
.step::before { counter-increment: s; content: "0" counter(s); font: 700 15px Poppins, sans-serif; color: var(--accent); }
.step h3 { margin: 8px 0 6px; font-size: 19px; }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* 사례 */
.cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case { padding: 24px; border-radius: 16px; background: var(--card); border: 1px solid var(--line); text-decoration: none; display: block; }
.case .k { font: 600 13px Poppins, sans-serif; color: var(--accent); }
.case h3 { margin: 6px 0 6px; font-size: 19px; }
.case p { margin: 0; color: var(--muted); font-size: 15px; }
.badge { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 6px; background: var(--bg-soft); color: var(--muted); margin-left: 6px; vertical-align: 2px; }

/* FAQ */
.faq { max-width: 820px; }
details { border-bottom: 1px solid var(--line); padding: 18px 0; }
summary { cursor: pointer; font-weight: 600; font-size: 18px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
summary::after { content: "+"; color: var(--accent); font-weight: 400; font-size: 22px; line-height: 1; }
details[open] summary::after { content: "−"; }
details p { color: var(--muted); margin: 10px 0 0; }

/* 문의 */
.contact { text-align: center; }
.contact h2 { font-size: clamp(28px, 3.6vw, 40px); margin: 8px 0 12px; }
.contact p { color: var(--muted); margin: 0 0 28px; }
.types { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 26px; }
.types a { padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line); text-decoration: none; font-size: 15px; background: var(--card); }
.types a:hover { border-color: var(--accent); color: var(--accent); }
.mail { font: 600 20px Poppins, sans-serif; color: var(--accent); text-decoration: none; }

footer { border-top: 1px solid var(--line); padding: 32px 0 44px; font-size: 14px; color: var(--muted); }
.foot { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.foot p { margin: 2px 0; }

/* 반응형 */
@media (max-width: 960px) {
  .grid4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .hero-mark { max-width: 280px; grid-row: 1; }
  .check { grid-template-columns: 1fr; padding: 28px; }
}
@media (max-width: 680px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .menu a:not(.btn) { display: none; }
  .brand { width: 150px; }
  .grid4, .steps, .videos, .cases { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
  .hero { padding-top: 40px; padding-bottom: 56px; gap: 28px; }
  .hero-mark { max-width: 200px; }
  .lead { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } html { scroll-behavior: auto; } }

/* 작은 글씨 안내 (세무·영수증) · 변경 이력 — 2026-11-05 */
.fine { padding: 40px 0 8px; border-top: 1px solid var(--line); font-size: 13.5px; line-height: 1.7; color: var(--muted); }
.fine h2 { font-size: 15px; margin: 0 0 10px; color: var(--text); }
.fine h3 { font-size: 13.5px; margin: 0 0 4px; color: var(--text); }
.fine ul, .fine ol { margin: 0 0 14px; padding-left: 18px; }
.fine li { margin: 2px 0; }
.fine b { color: var(--text); font-weight: 600; }
.fine .cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.fine-link { font-size: 13.5px; color: var(--muted); margin-top: 14px; }
.history { margin-top: 18px; font-size: 12.5px; }
.history summary { cursor: pointer; color: var(--muted); }
.history ul { margin: 8px 0 0; padding-left: 18px; }
.history li { margin: 2px 0; }
@media (max-width: 760px) { .fine .cols { grid-template-columns: 1fr; gap: 6px; } }
details.history { border: 0; padding: 0; }
.history summary { display: list-item; font-size: 12.5px; font-weight: 400; list-style: disclosure-closed; }
.history[open] summary { list-style: disclosure-open; }
.history summary::after { content: none; }

/* 언어 전환 버튼 (layout.js 가 그림) */
.lang { font: 600 13px Poppins, sans-serif; text-decoration: none; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; }
.menu a.lang { display: inline-block; }
.menu a[aria-current="page"] { color: var(--text); text-decoration: underline; text-underline-offset: 6px; text-decoration-thickness: 2px; text-decoration-color: var(--accent); }

/* 머리글 흔들림 방지 (2026-11-05) */
html { scrollbar-gutter: stable; }
#site-header { display: block; min-height: 69px; }
.lang.off { opacity: .35; cursor: default; }

/* 메일 선택 창 (layout.js) */
.mailbox { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 50; width: min(460px, calc(100% - 32px));
  background: var(--card); color: var(--text); border: 1px solid var(--line); border-radius: 14px; padding: 16px 18px; box-shadow: 0 12px 40px rgba(10,36,63,.18); }
.mailbox p { margin: 0 0 12px; }
.mailbox p b { display: block; font: 600 17px Poppins, sans-serif; }
.mailbox p span { font-size: 14px; color: var(--muted); }
.mailbox .mb-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.mailbox .btn { padding: 9px 16px; font-size: 14.5px; }
.mailbox .mb-x { margin-left: auto; background: none; border: 0; font-size: 22px; line-height: 1; color: var(--muted); cursor: pointer; padding: 4px 8px; }

/* 종이 결 (아주 옅게) — 2026-11-05 */
body { background-image: radial-gradient(rgba(120,100,70,.045) 1px, transparent 1px); background-size: 4px 4px; }
.menu a[aria-current="page"] { text-decoration-thickness: 1.5px; }