/* Roboticus 새 홈·기록·문의 — 흰 바탕, 브랜드 남색·파랑, Pretendard(필요한 글자만 잘라 내장)
   헤더는 기존 페이지와 같은 클래스(site-header·nav·nav-links·nav-toggle·nav-cta)를 써서
   script.js가 테마 버튼과 모바일 메뉴를 그대로 붙인다. 다크는 :root[data-theme="dark"] 토큰만 바꾼다. */
@font-face { font-family: "Pretendard R"; src: url(/fonts/pretendard-400.woff2?v=2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Pretendard R"; src: url(/fonts/pretendard-600.woff2?v=2) format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Pretendard R"; src: url(/fonts/pretendard-700.woff2?v=2) format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --bg: #ffffff; --tint: #eef2f8; --line: #e1e6ee;
  --ink: #1c2738; --mut: #5d6778;
  --deep: #1c2738;                 /* 남색 면(제2회 칸·푸터) */
  --hd-bg: rgba(255,255,255,.94);
  --field: #ffffff; --field-line: #c5ccd8; --pick: #eef2fe;
  --blue: #3b64f0; --blue-hi: #2447c9; --yellow: #f7c948;
  --sans: "Pretendard R", "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", sans-serif;
  --gut: clamp(20px, 4vw, 56px);
  --max: 1280px;
}
:root[data-theme="dark"] {
  --bg: #0e1420; --tint: #172033; --line: #263044;
  --ink: #eef2f8; --mut: #a9b3c4;
  --deep: #1f2d4a;
  --hd-bg: rgba(14,20,32,.92);
  --field: #121a29; --field-line: #34405a; --pick: #1d2a48;
  --blue-hi: #5b82ff;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--ink); font-family: var(--sans); font-size: 17px; line-height: 1.7; word-break: keep-all; -webkit-font-smoothing: antialiased; }
a { color: inherit; }
img, video { display: block; max-width: 100%; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 var(--gut); }
.small { font-size: 14px; color: var(--mut); }

/* header */
.site-header { position: sticky; top: 0; z-index: 30; background: var(--hd-bg); }
.nav { display: flex; align-items: center; height: 64px; gap: 12px; position: relative; }
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 19px; letter-spacing: -.01em; text-decoration: none; margin-right: auto; }
.nav-links { display: flex; gap: 30px; font-size: 15px; font-weight: 600; margin-right: auto; }
.nav-links a { text-decoration: none; color: var(--mut); }
.nav-links a:hover, .nav-links a[aria-current] { color: var(--ink); }
.nav-ctrls { display: inline-flex; gap: 6px; }
.nav-ctrl { height: 34px; min-width: 34px; padding: 0 10px; border: 1px solid var(--line); background: transparent; color: var(--mut); border-radius: 8px; font: 600 13px/1 var(--sans); cursor: pointer; }
.nav-ctrl:hover { color: var(--ink); border-color: var(--ink); }
.nav-toggle { display: none; background: none; border: 0; color: var(--ink); font-size: 22px; padding: 4px 6px; cursor: pointer; }

/* buttons */
.btn, .nav-cta { display: inline-block; font-size: 16px; font-weight: 600; padding: 13px 22px; border-radius: 8px; text-decoration: none; background: var(--blue); color: #fff; border: 0; cursor: pointer; font-family: inherit; }
.btn:hover, .nav-cta:hover { background: var(--blue-hi); }
.btn.ghost { background: transparent; color: var(--ink); box-shadow: inset 0 0 0 1.5px var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--bg); }
.nav-cta { padding: 9px 16px; font-size: 14.5px; white-space: nowrap; }

/* footer */
.ft { background: var(--deep); color: #c9d1de; margin-top: 120px; padding: 48px 0 56px; font-size: 15px; }
.ft .wrap { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 32px; }
.ft b { display: block; color: #fff; margin-bottom: 10px; }
.ft ul { list-style: none; display: grid; gap: 6px; }
.ft a { text-decoration: none; }
.ft a:hover { color: #fff; text-decoration: underline; }
.ft .ico { display: inline-flex; align-items: center; gap: 8px; }
.ft .ico svg { width: 16px; height: 16px; flex: none; }
.ft-logo { display: block; width: 200px; height: auto; margin-top: 28px; opacity: .9; }

@media (max-width: 820px) {
  body { font-size: 16px; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open { display: flex; flex-direction: column; gap: 0; position: absolute; top: 64px; left: 0; right: 0; margin: 0; padding: 4px var(--gut) 14px; background: var(--bg); border-bottom: 1px solid var(--line); }
  .nav-links.open a { padding: 14px 0; font-size: 16px; color: var(--ink); border-bottom: 1px solid var(--line); }
  .ft .wrap { grid-template-columns: 1fr 1fr; }
  .ft .wrap > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 420px) { .site-header .nav { gap: 6px; } .site-header .brand { font-size: 17px; } .site-header .nav > .nav-cta { padding: 7px 10px; font-size: 13px; } .nav-ctrl { min-width: 30px; height: 30px; padding: 0 7px; } }