:root { color-scheme: dark; --background: #000; --text: #f5f6f5; --muted: #8d9994; --accent: #a1d6c3; --line: #24342e; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif; }
* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: var(--background); color: var(--text); }
[hidden] { display: none !important; }
button, input { font: inherit; }
button, a, input { -webkit-tap-highlight-color: transparent; }
button, a { touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { cursor: wait; opacity: .65; }
button:focus-visible, a:focus-visible, input:focus-visible, .stage-view:focus-visible { outline: 2px solid var(--accent); outline-offset: 5px; }
.skip-link { position: fixed; left: 16px; top: 16px; z-index: 5; padding: 12px 18px; background: var(--accent); color: #000; transform: translateY(-180%); }
.skip-link:focus { transform: translateY(0); }
.site-header { height: 96px; max-width: 1440px; padding: 0 48px; margin: auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid #171b19; }
.back-link { width: fit-content; color: #bbc5c0; text-decoration: none; font-size: 14px; }
.back-link span { margin-left: 10px; }
.brand { font-size: 13px; font-weight: 650; letter-spacing: .3em; color: #d9e2dd; }
.quiet-button { justify-self: end; border: 1px solid #35483f; border-radius: 28px; padding: 10px 20px; color: #c9d6ce; background: transparent; font-size: 14px; }
.quiet-button:hover { background: #0d1712; border-color: var(--accent); }
.main-shell { min-height: calc(100svh - 96px); display: grid; place-items: center; padding: 72px 24px 100px; }
.locked-view { width: min(100%, 440px); }
.lock-symbol { width: 40px; height: 36px; border: 1px solid #638b78; border-radius: 8px; margin: 18px 0 32px; position: relative; }
.lock-symbol::before { content: ""; position: absolute; width: 20px; height: 21px; border: 1px solid #638b78; border-bottom: 0; border-radius: 12px 12px 0 0; top: -19px; left: 9px; }
.lock-symbol span { position: absolute; width: 3px; height: 10px; border-radius: 3px; background: var(--accent); top: 12px; left: 18px; }
.eyebrow { color: var(--accent); font-size: 12px; font-weight: 500; letter-spacing: .18em; margin: 0 0 18px; }
.locked-view h1 { font-size: clamp(30px, 5vw, 40px); font-weight: 600; line-height: 1.3; letter-spacing: -.04em; margin: 0 0 44px; }
.login-form label { display: block; font-size: 13px; color: #a1ada7; margin-bottom: 12px; }
.password-row { display: flex; gap: 12px; }
.password-row input { min-width: 0; flex: 1; width: 100%; height: 54px; border: 1px solid #34433b; border-radius: 10px; padding: 0 15px; background: #080b09; color: var(--text); font-size: 20px; letter-spacing: .15em; }
.primary-button { flex-shrink: 0; min-width: 104px; height: 54px; border: 1px solid var(--accent); border-radius: 10px; padding: 0 22px; background: var(--accent); color: #10241b; font-size: 15px; font-weight: 600; }
.primary-button span { margin-left: 10px; }
.primary-button:hover { background: #b7e5d3; }
.status { min-height: 24px; margin: 18px 0 0; font-size: 13px; line-height: 1.8; color: var(--muted); }
.status[data-tone="error"] { color: #ecaaa1; }
.stage-view { text-align: center; width: min(100%, 840px); padding: 20px 0; }
.stage-view .eyebrow { margin-bottom: 30px; font-size: 15px; letter-spacing: .3em; }
.stage-title { font-size: clamp(88px, 14vw, 160px); font-weight: 500; line-height: 1.18; margin: 0; letter-spacing: .08em; padding-left: .08em; }
.stage-years { color: #acbeb4; font-size: clamp(23px, 3.5vw, 36px); font-weight: 350; letter-spacing: .16em; padding-left: .16em; margin: 28px 0 52px; }
.stage-note { border-top: 1px solid var(--line); padding-top: 24px; display: inline-block; min-width: 220px; margin: 0; color: var(--muted); font-size: 14px; letter-spacing: .12em; }
@media (max-width: 600px) {
  .site-header { height: 76px; padding: 0 22px; }
  .brand { font-size: 11px; letter-spacing: .22em; }
  .back-link { font-size: 12px; }
  .back-link span { margin-left: 5px; }
  .quiet-button { padding: 9px 14px; font-size: 12px; }
  .main-shell { min-height: calc(100svh - 76px); padding: 65px 28px 80px; }
  .password-row { gap: 9px; }
  .primary-button { padding: 0 17px; min-width: 90px; }
  .stage-view .eyebrow { font-size: 13px; }
  .stage-years { margin: 24px 0 42px; }
}