:root {
  --c-brand: #1f3a5f;       /* 주색: 버튼·강조·바닥글 배경 */
  --c-brand-dark: #152a46;  /* 주색 어두운 쪽: 버튼 눌림 */
  --c-accent: #d9822b;      /* 보조색: 장식선·그림 중심선 (글자색으로 쓰지 않음 — 흰 바탕 대비 부족) */
  --c-bg: #ffffff;
  --c-soft: #f3f5f8;        /* 구역 배경·그림 부품 채움 */
  --c-text: #1d232b;
  --c-muted: #4e5a68;
  --c-line: #d5dbe3;
  --c-demo-bg: #fff3cd;     /* 데모 띠 (납품본에서는 띠와 함께 삭제) */
  --c-demo-text: #5c4400;
  --font: -apple-system, "Malgun Gothic", "Apple SD Gothic Neo", sans-serif;
  --maxw: 1120px;
  --radius: 6px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.7;
  word-break: keep-all;
  overflow-wrap: break-word;
}
svg { max-width: 100%; height: auto; }
a { color: var(--c-brand); }
:focus-visible { outline: 3px solid var(--c-brand); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.35; }
h2 { font-size: 1.6rem; margin: 0 0 1.25rem; }
h3 { font-size: 1.15rem; margin: 0 0 .5rem; }

/* 데모 띠 */
.demo-bar {
  background: var(--c-demo-bg);
  color: var(--c-demo-text);
  text-align: center;
  font-size: .875rem;
  font-weight: 700;
  padding: .45rem 1rem;
  margin: 0;
}

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 10; background: var(--c-bg); padding: .5rem 1rem; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 1rem; }

/* 머리글·메뉴 */
.site-head { background: var(--c-bg); border-bottom: 1px solid var(--c-line); }
.site-head .wrap {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: 0 1rem; min-height: 64px;
}
.logo {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 800; font-size: 1.2rem; color: var(--c-text); text-decoration: none;
}
.logo svg { width: 28px; height: 28px; }
.logo-hex { fill: var(--c-brand); }
.logo-hole { fill: var(--c-bg); stroke: var(--c-accent); stroke-width: 5; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.5rem; }
.nav a {
  display: block; padding: .6rem 0; color: var(--c-text);
  text-decoration: none; font-weight: 600; border-bottom: 3px solid transparent;
}
.nav a:hover { color: var(--c-brand); }
.nav a[aria-current="page"] { color: var(--c-brand); border-bottom-color: var(--c-accent); }
.nav-toggle { display: none; }

@media (max-width: 767px) {
  .js .nav-toggle {
    display: block; min-height: 44px; padding: 0 1rem;
    font: inherit; font-weight: 700; color: var(--c-brand);
    background: var(--c-bg); border: 1px solid var(--c-line); border-radius: var(--radius);
  }
  .nav { width: 100%; }
  .js .nav { display: none; }
  .js .nav.open { display: block; }
  .nav ul { flex-direction: column; gap: 0; padding-bottom: .5rem; }
  .nav a { padding: .75rem 0; border-bottom: 0; border-top: 1px solid var(--c-line); }
  .nav a[aria-current="page"] { border-left: 4px solid var(--c-accent); padding-left: .75rem; }
}

/* 첫 화면 */
.hero { background: var(--c-soft); padding: 3rem 0; }
.hero-grid { display: grid; gap: 2rem; align-items: center; }
@media (min-width: 768px) { .hero-grid { grid-template-columns: 1.1fr 1fr; } }
.eyebrow { margin: 0 0 .5rem; font-weight: 700; color: var(--c-muted); }
.hero h1 { font-size: clamp(1.75rem, 4.5vw, 2.6rem); margin: 0 0 1rem; }
.lead { font-size: 1.1rem; color: var(--c-muted); margin: 0 0 1.5rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin: 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 48px;
  padding: 0 1.25rem; border-radius: var(--radius); border: 2px solid var(--c-brand);
  background: var(--c-brand); color: #fff; font: inherit; font-weight: 700;
  text-decoration: none; cursor: pointer;
}
.btn:hover { background: var(--c-brand-dark); border-color: var(--c-brand-dark); }
.btn-line { background: var(--c-bg); color: var(--c-brand); }
.btn-line:hover { background: var(--c-soft); color: var(--c-brand); }

/* 그림(직접 그린 SVG) — 색은 변수에서 */
.art-bg { fill: var(--c-bg); stroke: var(--c-line); }
.art-grid { fill: none; stroke: var(--c-line); stroke-width: .6; }
.art-part { fill: var(--c-soft); stroke: var(--c-brand); stroke-width: 2.5; stroke-linejoin: round; }
.art-hole { fill: var(--c-bg); stroke: var(--c-brand); stroke-width: 2.5; }
.art-center { fill: none; stroke: var(--c-accent); stroke-width: 1.5; stroke-dasharray: 14 4 3 4; }
.art-dim { fill: none; stroke: var(--c-muted); stroke-width: 1.2; }
.art-ink { fill: var(--c-muted); }

/* 구역 */
.section { padding: 3.5rem 0; }
.section.soft { background: var(--c-soft); }
.page-head { background: var(--c-soft); padding: 2.5rem 0 2rem; border-bottom: 1px solid var(--c-line); }
.page-head h1 { margin: 0 0 .5rem; font-size: clamp(1.6rem, 4vw, 2.2rem); }
.page-head p { margin: 0; color: var(--c-muted); }
.narrow { max-width: 760px; }

.cards { display: grid; gap: 1.25rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr)); }
.card {
  background: var(--c-bg); border: 1px solid var(--c-line); border-top: 4px solid var(--c-accent);
  border-radius: var(--radius); padding: 1.25rem;
}
.card p { margin: 0; color: var(--c-muted); }
.card .icon { width: 56px; height: 56px; display: block; margin-bottom: .75rem; }

.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 1rem; }
.steps li {
  counter-increment: step; position: relative; padding: 1rem 1rem 1rem 3.75rem;
  background: var(--c-bg); border: 1px solid var(--c-line); border-radius: var(--radius);
}
.steps li::before {
  content: counter(step); position: absolute; left: 1rem; top: 1rem;
  width: 2rem; height: 2rem; border-radius: 50%; background: var(--c-brand); color: #fff;
  display: grid; place-items: center; font-weight: 700;
}
.steps strong { display: block; }

.check { margin: 0; padding-left: 1.25rem; }
.check li { margin-bottom: .6rem; }

.cta { background: var(--c-brand); color: #fff; padding: 3rem 0; }
.cta h2 { color: #fff; }
.cta p { margin: 0 0 1.25rem; }
.cta a { color: #fff; }
.cta .btn { background: #fff; color: var(--c-brand); border-color: #fff; }
.cta .btn:hover { background: var(--c-soft); }
.cta :focus-visible { outline-color: #fff; }

/* 표 */
.table-scroll { overflow-x: auto; }
.scroll-hint { display: none; }
@media (max-width: 599px) { .scroll-hint { display: block; } }
table { width: 100%; border-collapse: collapse; min-width: 520px; background: var(--c-bg); }
caption { text-align: left; color: var(--c-muted); padding-bottom: .5rem; }
th, td { border: 1px solid var(--c-line); padding: .7rem .8rem; text-align: left; vertical-align: top; }
thead th { background: var(--c-soft); }

.note { font-size: .9rem; color: var(--c-muted); }
.tags { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: .5rem; }
.tags li { border: 1px solid var(--c-line); border-radius: 999px; padding: .25rem .9rem; background: var(--c-bg); }

/* 공지 */
.notice-list { display: grid; gap: 1.25rem; }
.notice-item { border: 1px solid var(--c-line); border-radius: var(--radius); padding: 1.25rem; }
.notice-item h2 { font-size: 1.2rem; margin: 0 0 .25rem; }
.notice-item .date { margin: 0 0 .75rem; color: var(--c-muted); font-size: .9rem; }
.notice-item p:last-child { margin-bottom: 0; }

/* 문의 */
.contact-grid { display: grid; gap: 2rem; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: 1.4fr 1fr; } }
.form-row { margin-bottom: 1rem; }
label { display: block; font-weight: 700; margin-bottom: .3rem; }
.opt { font-weight: 400; color: var(--c-muted); }
input[type="text"], input[type="tel"], input[type="email"], textarea {
  width: 100%; min-height: 48px; padding: .6rem .75rem; font: inherit; color: var(--c-text);
  background: var(--c-bg); border: 1px solid var(--c-muted); border-radius: var(--radius);
}
textarea { min-height: 160px; resize: vertical; }
.agree { display: flex; gap: .5rem; align-items: flex-start; font-weight: 400; }
.agree input { width: 20px; height: 20px; margin-top: .3rem; flex: none; }
.privacy { font-size: .9rem; color: var(--c-muted); background: var(--c-soft); padding: .75rem 1rem; border-radius: var(--radius); }
.privacy p { margin: 0; }
.privacy ul { margin: .25rem 0 0; padding-left: 1.1rem; }
.agree + .agree { margin-top: .5rem; }
.form-msg { font-weight: 700; color: var(--c-demo-text); background: var(--c-demo-bg); padding: 0 1rem; border-radius: var(--radius); }
.form-msg:not(:empty) { padding: .75rem 1rem; }
.info dl { margin: 0; }
.info dt { font-weight: 700; }
.info dd { margin: 0 0 1rem; }

.map-box {
  display: grid; place-items: center; text-align: center; aspect-ratio: 16 / 9; padding: 1rem;
  border: 2px dashed var(--c-muted); border-radius: var(--radius); background: var(--c-soft); color: var(--c-muted);
}

/* 바닥글 */
.site-foot { background: var(--c-brand-dark); color: #fff; padding: 2.5rem 0; font-size: .9rem; }
.site-foot a { color: #fff; }
.site-foot :focus-visible { outline-color: #fff; }
.site-foot p { margin: 0 0 .75rem; }
.foot-name { font-weight: 800; font-size: 1.05rem; }
.foot-links { list-style: none; padding: 0; margin: 0 0 .75rem; display: flex; flex-wrap: wrap; gap: 1rem; }