/* DiveCore 법적 페이지 공통 스타일 (privacy / terms / support) — Dark ocean / Apple-style */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg:      #060a12;
  --bg-2:    #0a1018;
  --bg-card: #121925;                 /* FAQ / code / contact surfaces */
  --cyan:    #2bbfdb;                 /* bright teal — links/accents on dark */
  --teal-bright: #4dd8ee;
  --label:   #f5f6f8;
  --label2:  rgba(235,240,248,0.70);
  --label3:  rgba(225,232,242,0.52);
  --border:  rgba(255,255,255,0.12);
  --max-w:   760px;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Apple SD Gothic Neo', 'Pretendard', system-ui, sans-serif;
}
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--label2);
  line-height: 1.75;
  letter-spacing: -0.01em;
  word-break: keep-all;
  overflow-wrap: break-word;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 2px; }

/* ── language dual-block visibility (works without JS; default html lang="ko") ── */
.i18n > [data-lang] { display: none; }
html[lang="ko"] .i18n > [data-lang="ko"] { display: revert; }
html[lang="en"] .i18n > [data-lang="en"] { display: revert; }

/* Nav */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8,12,20,0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  max-width: 1080px; margin: 0 auto;
  padding: 11px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: -0.02em; font-size: 17px; color: var(--label); }
.brand-mark { width: 26px; height: 26px; border-radius: 6px; }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-back { color: var(--label2); font-size: 13.5px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--border); }
.nav-back:hover { color: var(--cyan); border-color: var(--cyan); text-decoration: none; }

.lang-toggle { display: inline-flex; background: rgba(255,255,255,.08); border-radius: 980px; padding: 2px; }
.lang-btn {
  border: none; background: transparent; cursor: pointer;
  font: inherit; font-size: 12px; font-weight: 600; color: var(--label3);
  padding: 4px 11px; border-radius: 980px; transition: all .18s;
}
.lang-btn.active { background: rgba(255,255,255,.15); color: var(--label); }

/* Page */
main { max-width: var(--max-w); margin: 0 auto; padding: 56px 24px 96px; }
.page-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: 1.8px; text-transform: uppercase; color: var(--cyan); margin-bottom: 14px; }
.page-title { font-size: clamp(30px, 5vw, 46px); font-weight: 700; letter-spacing: -0.025em; line-height: 1.08; color: var(--label); margin-bottom: 12px; }
.page-meta { font-size: 14px; color: var(--label3); margin-bottom: 40px; }

article h2 {
  font-size: 22px; font-weight: 700; letter-spacing: -0.01em; color: var(--label);
  margin-top: 44px; margin-bottom: 16px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
}
article > [data-lang] > h2:first-child, article h2:first-child { margin-top: 0; }
article h3 { font-size: 17px; font-weight: 600; color: var(--label); margin-top: 28px; margin-bottom: 10px; }
article p { margin-bottom: 14px; font-size: 15.5px; }
article ul, article ol { margin: 12px 0 18px 22px; }
article li { margin-bottom: 8px; font-size: 15.5px; }
article li strong { color: var(--label); }
article code, article kbd {
  background: var(--bg-card); border: 1px solid var(--border);
  padding: 2px 7px; border-radius: 6px; font-size: 13px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--label);
}

.callout {
  margin: 22px 0; padding: 18px 20px;
  background: rgba(44,191,219,.08);
  border: 1px solid rgba(44,191,219,.25);
  border-left: 3px solid var(--cyan);
  border-radius: 12px; font-size: 14.5px;
}
.callout strong { color: var(--label); }

.contact-card {
  margin: 44px 0 0; padding: 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
}
.contact-card h3 { margin-top: 0; color: var(--label); }

footer {
  text-align: center; padding: 40px 24px;
  border-top: 1px solid var(--border);
  font-size: 13px; color: var(--label3);
  background: var(--bg-2);
}
footer a { color: var(--label3); margin: 0 10px; }
footer a:hover { color: var(--cyan); }