.system-page { min-height: 100vh; background: radial-gradient(circle at 50% 0, rgba(167,243,208,.08), transparent 32%), #050505; }
.system-page-header { width: min(1120px, calc(100% - 40px)); height: 82px; margin-inline: auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.system-page-header > a:last-child { color: var(--text-soft); font-size: 12px; font-weight: 650; }
.system-page-main { width: min(900px, calc(100% - 40px)); margin: 0 auto; padding: 90px 0 120px; }
.system-page-kicker { margin: 0 0 20px; color: var(--accent); font-family: var(--mono); font-size: 9px; letter-spacing: .14em; text-transform: uppercase; }
.system-page h1 { max-width: 800px; margin: 0 0 30px; font-size: clamp(54px, 9vw, 104px); line-height: .94; letter-spacing: -.07em; }
.system-page-lead { max-width: 690px; margin-bottom: 65px; color: var(--text-soft); font-size: clamp(18px, 2vw, 22px); line-height: 1.65; }
.system-card { padding: clamp(28px, 6vw, 58px); border: 1px solid var(--line); border-radius: 28px; background: rgba(13,16,14,.84); box-shadow: 0 35px 90px rgba(0,0,0,.28); }
.system-card section + section { margin-top: 38px; padding-top: 38px; border-top: 1px solid var(--line); }
.system-card h2 { margin: 0 0 14px; font-size: clamp(23px, 3vw, 34px); letter-spacing: -.045em; }
.system-card p, .system-card li { color: var(--text-soft); font-size: 15px; line-height: 1.72; }
.system-card p:last-child { margin-bottom: 0; }
.system-card ul { margin: 0; padding-left: 21px; }
.system-card a { color: var(--accent); text-decoration: underline; text-decoration-color: rgba(167,243,208,.35); text-underline-offset: 4px; }
.system-card-meta { color: var(--text-dim) !important; font-family: var(--mono); font-size: 9px !important; text-transform: uppercase; letter-spacing: .08em; }
.system-actions { margin-top: 36px; display: flex; flex-wrap: wrap; gap: 14px; }
.system-actions .button { width: auto; }
.error-page .system-page-main { min-height: calc(100vh - 82px); display: grid; align-content: center; }
.error-code { color: var(--accent); font-family: var(--mono); font-size: 11px; letter-spacing: .16em; }
.error-page h1 { max-width: 1000px; }

@media (max-width: 560px) {
  .system-page-header, .system-page-main { width: calc(100% - 24px); }
  .system-page-header { height: 68px; }
  .system-page-main { padding: 64px 0 90px; }
  .system-card { padding: 27px 20px; border-radius: 22px; }
  .system-actions { align-items: stretch; flex-direction: column; }
  .system-actions .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .system-page *, .system-page *::before, .system-page *::after { scroll-behavior: auto !important; transition: none !important; }
}