/* E:STHER 납품 사이트 공통 — 폰트 · 헤더 · 타이포 · 섹션 규격 */

@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/SpaceGrotesk-latin.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("/fonts/SpaceGrotesk-latin-ext.woff2") format("woff2");
  font-weight: 300 700;
  font-display: swap;
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* 한글 본문. 명함 생성기가 canvas에 글자를 그릴 때도 이 폰트를 쓴다 */
@font-face {
  font-family: "Pretendard";
  src: url("/fonts/PretendardVariable.woff2") format("woff2-variations");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --green:#3D995D;
  --pink:#C266A2;
  --ink:#1A1A1A;
  --paper:#fff;
  --line:#e7e7e7;
  --mut:#8a8a8a;
  --mut2:#b4b4b4;
  --sub:#5a5a5a;
  --nav-h:58px;
  --wrap:1200px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; scroll-padding-top:calc(var(--nav-h) + 18px); }
body {
  background:var(--paper); color:var(--ink);
  font-family:"Space Grotesk", Pretendard, -apple-system, "Apple SD Gothic Neo", sans-serif;
  -webkit-font-smoothing:antialiased; -webkit-tap-highlight-color:transparent;
  overflow-x:hidden;
}
a { color:inherit; }

/* ── 상단 내비 ── */
.nav {
  position:sticky; top:0; z-index:50; height:var(--nav-h);
  background:rgba(255,255,255,.92); backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line);
}
.nav-in {
  max-width:var(--wrap); margin:0 auto; height:100%;
  padding:0 clamp(16px,4vw,28px);
  display:flex; align-items:center; gap:clamp(14px,3vw,30px);
}
.nav .brand { display:flex; align-items:center; flex:none; text-decoration:none; }
.nav .brand svg { display:block; height:15px; width:auto; }
.nav .links { display:flex; gap:clamp(10px,2.2vw,22px); margin-left:auto; align-items:center; }
.nav .links a {
  font-size:11.5px; letter-spacing:.08em; text-transform:uppercase;
  color:var(--mut); text-decoration:none; white-space:nowrap; padding:4px 0;
  border-bottom:1px solid transparent;
}
.nav .links a:hover { color:var(--ink); }
.nav .links a.on { color:var(--ink); border-bottom-color:var(--green); }

/* ── 레이아웃 ── */
.wrap { max-width:var(--wrap); margin:0 auto; padding:0 clamp(16px,4vw,28px); }

.hero { padding:clamp(56px,9vw,104px) 0 clamp(26px,5vw,40px); }
.hero h1 {
  font-size:clamp(34px,6.5vw,64px); font-weight:700;
  letter-spacing:-0.04em; line-height:0.98;
}
.hero h1 .d { color:var(--green); }
.hero .lede {
  margin-top:18px; max-width:640px; font-size:clamp(13px,2.4vw,15px);
  line-height:1.85; color:var(--sub);
}
.hero .meta { margin-top:20px; font-size:11px; color:var(--mut2); letter-spacing:.06em; text-transform:uppercase; }

/* 섹션 — 자산군이 바뀌는 경계를 여백으로 만든다 */
section { padding:clamp(44px,7vw,96px) 0 0; }
.shead {
  display:flex; align-items:baseline; gap:12px; flex-wrap:wrap;
  border-top:1px solid var(--line); padding-top:18px; margin-bottom:14px;
}
.shead h2 { font-size:17px; font-weight:700; letter-spacing:-0.02em; }
.shead .n { font-size:10px; letter-spacing:.14em; color:var(--mut2); }
.shead .spec {
  font-size:10px; letter-spacing:.1em; color:var(--mut2);
  text-transform:uppercase; margin-left:auto;
}
.sdesc { max-width:700px; font-size:13.5px; line-height:1.9; color:var(--sub); margin-bottom:30px; }
.sdesc b { font-weight:500; color:var(--ink); }
.sdesc code {
  font-family:ui-monospace, SFMono-Regular, Menlo, monospace; font-size:12.5px;
  background:#f4f4f4; padding:1px 5px; border-radius:4px;
}

/* 메타 라벨 — 자산 사양을 한눈에 */
.label {
  font-size:11px; letter-spacing:.12em; text-transform:uppercase;
  font-weight:500; color:var(--mut);
}

/* 버튼 */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:6px;
  font:inherit; font-size:12px; letter-spacing:.02em; font-weight:500;
  padding:9px 14px; border-radius:7px; cursor:pointer; text-decoration:none;
  border:1px solid var(--ink); background:var(--ink); color:#fff;
  transition:opacity .15s;
}
.btn:hover { opacity:.84; }
.btn.ghost { background:#fff; color:var(--ink); border-color:var(--line); }
.btn.ghost:hover { border-color:var(--ink); opacity:1; }
.btn.sm { font-size:11px; padding:7px 11px; }

/* ── 푸터 ── */
footer {
  margin-top:clamp(64px,9vw,120px);
  padding:34px 0 calc(64px + env(safe-area-inset-bottom));
  border-top:1px solid var(--line);
  font-size:11.5px; color:var(--mut2); line-height:2;
}
footer a { color:var(--mut); text-decoration:none; border-bottom:1px solid var(--line); }
footer .fnote { margin-bottom:16px; max-width:620px; line-height:1.9; }
footer .fbar {
  display:flex; align-items:baseline; justify-content:space-between; gap:16px; flex-wrap:wrap;
  padding-top:16px; border-top:1px solid var(--line);
}
footer .cr { color:var(--sub); }
footer .cr a { color:var(--ink); border-bottom-color:var(--mut2); }
footer .cl { color:var(--mut2); }
@media (max-width:560px){ footer .fbar { flex-direction:column; gap:8px; } }

/* ── 햄버거 ── */
.nav-toggle {
  display:none; margin-left:auto; width:38px; height:38px;
  border:1px solid var(--line); border-radius:8px; background:var(--paper);
  cursor:pointer; position:relative; padding:0;
}
.nav-toggle i {
  position:absolute; left:50%; top:50%; width:16px; height:1.5px;
  background:var(--ink); transform:translate(-50%,-50%); transition:transform .22s, opacity .18s;
}
.nav-toggle i:nth-child(1) { transform:translate(-50%,calc(-50% - 5px)); }
.nav-toggle i:nth-child(3) { transform:translate(-50%,calc(-50% + 5px)); }
.nav-toggle[aria-expanded="true"] i:nth-child(1) { transform:translate(-50%,-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] i:nth-child(2) { opacity:0; }
.nav-toggle[aria-expanded="true"] i:nth-child(3) { transform:translate(-50%,-50%) rotate(-45deg); }

@media (max-width:820px){
  .nav-toggle { display:block; }
  .nav .links {
    position:absolute; left:0; right:0; top:var(--nav-h);
    flex-direction:column; align-items:stretch; gap:0; margin-left:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    padding:6px clamp(16px,4vw,28px) 12px;
    box-shadow:0 12px 24px rgba(0,0,0,.06);
    max-height:0; overflow:hidden; opacity:0; pointer-events:none;
    transition:max-height .26s ease, opacity .2s ease;
  }
  .nav .links.open { max-height:64vh; opacity:1; pointer-events:auto; overflow-y:auto; }
  .nav .links a {
    padding:13px 2px; font-size:12px; letter-spacing:.09em;
    border-bottom:1px solid var(--line);
  }
  .nav .links a:last-child { border-bottom:0; }
  .nav .links a.on { border-bottom-color:var(--line); color:var(--green); }
}