/* Bridgestudio — layout */
.shell { max-width: var(--shell-max); margin: 0 auto; padding: 0 24px; }

/* Topbar */
.topbar {
  position: sticky; top: 0; z-index: 40; height: var(--topbar-h);
  background: rgba(255,255,255,.82); backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { max-width: var(--shell-max); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; gap: 16px; }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; letter-spacing: -.02em; font-size: 18.5px; }
.logo-mark { width: 26px; height: 26px; }
.nav { display: flex; align-items: center; gap: 4px; margin-left: 18px; }
.nav a { padding: 8px 12px; border-radius: var(--radius-sm); font-size: 14.5px; font-weight: 600; color: var(--text-muted); }
.nav a:hover { color: var(--text); background: var(--bg-soft); }
.nav-cta { display: none; }
.nav-spacer { flex: 1; }
.nav-toggle { display: none; width: 40px; height: 40px; border: 1px solid var(--border); background: transparent; border-radius: var(--radius-sm); padding: 0; flex-direction: column; gap: 4px; align-items: center; justify-content: center; }
.nav-toggle span { display: block; width: 16px; height: 1.6px; background: var(--text); border-radius: 2px; }

/* Sections */
.section { padding: 92px 0; }
.section.soft { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-head { max-width: 680px; margin-bottom: 44px; }
.eyebrow { display: inline-block; font-size: 12.5px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--primary); margin-bottom: 14px; }
.section h2 { font-size: var(--fs-h2); margin-bottom: 14px; }
.section-head p { color: var(--text-muted); font-size: 16.5px; }

/* Hero */
.hero { position: relative; overflow: hidden; background: var(--bg-dark); color: var(--text-on-dark); }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(900px 460px at 12% -10%, rgba(43,91,255,.42), transparent 62%),
    radial-gradient(700px 420px at 88% 8%, rgba(0,211,184,.20), transparent 60%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .5;
  background-image: linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 56px 56px; mask-image: linear-gradient(180deg, #000 0%, transparent 78%);
}
.hero-inner { position: relative; z-index: 1; max-width: var(--shell-max); margin: 0 auto; padding: 104px 24px 108px; display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.hero h1 { font-size: var(--fs-hero); letter-spacing: -.04em; }
.hero h1 em { font-style: normal; display: block; background: linear-gradient(92deg, #7FA6FF, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero-lead { margin-top: 22px; font-size: 17.5px; color: var(--text-on-dark-muted); max-width: 520px; }
.hero-ctas { display: flex; gap: 12px; margin-top: 34px; flex-wrap: wrap; }
.hero-meta { display: flex; gap: 28px; margin-top: 46px; flex-wrap: wrap; }
.hero-meta div span { display: block; font-size: 12.5px; color: var(--text-on-dark-muted); letter-spacing: .04em; }
.hero-meta div b { font-size: 15px; font-weight: 700; }

/* Grids */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.split { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }

/* Footer */
.footer { background: var(--bg-dark); color: var(--text-on-dark-muted); padding: 64px 0 44px; font-size: 14px; }
.footer-top { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; padding-bottom: 36px; border-bottom: 1px solid var(--border-dark); }
.footer h4 { color: var(--text-on-dark); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 14px; font-weight: 700; }
.footer a:hover { color: var(--text-on-dark); }
.footer ul { list-style: none; padding: 0; display: grid; gap: 9px; }
.biz { margin-top: 28px; display: grid; gap: 5px; font-size: 13px; line-height: 1.65; }
.biz b { color: var(--text-on-dark); font-weight: 600; }
.copyright { margin-top: 26px; font-size: 13px; }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; padding: 72px 24px 76px; gap: 40px; }
  .split { grid-template-columns: 1fr; gap: 34px; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .section { padding: 62px 0; }
  .nav { display: none; }
  .nav-toggle { display: flex; }
  /* 좁은 화면에선 상단 CTA를 접힌 메뉴로 내린다 — 안 그러면 햄버거가 화면 밖으로 밀린다 */
  .topbar-inner > .btn-primary { display: none; }
  .nav.open .nav-cta { display: block; color: var(--primary); font-weight: 700; }
  .topbar-inner { gap: 10px; padding: 0 16px; }
  .lang-trigger { padding: 7px 10px; }
  .nav.open { display: flex; position: absolute; top: var(--topbar-h); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px; background: var(--bg); border-bottom: 1px solid var(--border); padding: 10px 16px 16px; margin: 0; box-shadow: var(--shadow); }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
}