* { box-sizing: border-box; }
    :root { color-scheme: dark; --bg: #07080d; --card: #10121a; --text: #e4e6ed; --muted: #a4a8ba; --accent: #22d3a7; --border: #292d3d; }
    body { margin: 0; background: var(--bg); color: var(--text); font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.6; -webkit-font-smoothing: antialiased; }
    a { color: inherit; text-decoration: none; }
    a:focus-visible, button:focus-visible, summary:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
    .nav { max-width: 1000px; margin: auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .nav-links { display: flex; align-items: center; gap: 16px; }
    .brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; min-height: 44px; }
    .dot { width: 8px; height: 8px; background: var(--accent); border-radius: 50%; }
    .back { display: inline-flex; align-items: center; min-height: 44px; color: var(--muted); font-size: 14px; }
    main { width: min(100%, 528px); margin: 52px auto 0; padding: 0 20px; }
    .card { padding: 32px; border: 1px solid var(--border); border-radius: 20px; background: var(--card); }
    h1 { margin: 0 0 12px; font-size: clamp(24px, 5.8vw, 30px); letter-spacing: -.035em; line-height: 1.2; font-weight: 700; }
    p { margin: 0; }
    .intro { color: var(--muted); font-size: 15px; }
    .primary { display: flex; align-items: center; justify-content: center; min-height: 52px; margin-top: 26px; padding: 12px 16px; border-radius: 11px; background: var(--accent); color: #07140f; font-weight: 650; text-align: center; }
    .primary:hover { background: #49dfb9; }
    .processing-time { margin-top: 14px; color: var(--text); font-size: 13px; }
    .hint { margin-top: 10px; text-align: center; font-size: 13px; color: var(--muted); }
    .fallback { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
    .fallback-label { font-size: 13px; color: var(--muted); }
    .email-row { display: flex; align-items: center; flex-wrap: wrap; gap: 4px 12px; }
    .email { width: 148px; min-width: 0; padding: 8px 0; border: 0; border-radius: 0; background: transparent; color: var(--text); font: inherit; font-size: 16px; }
    button { min-height: 44px; border: 0; padding: 8px 0; background: transparent; color: var(--accent); font: inherit; font-size: 13px; cursor: pointer; }
    button:hover { text-decoration: underline; }
    button:disabled { opacity: .6; cursor: wait; }
    [hidden] { display: none !important; }
    .status { color: var(--muted); font-size: 13px; }
    .status:not(:empty) { margin-top: 6px; }
    details { margin-top: 20px; border-top: 1px solid var(--border); }
    summary { padding: 16px 0 0; min-height: 44px; font-size: 14px; cursor: pointer; }
    .details-content { padding-top: 12px; color: var(--muted); font-size: 14px; }
    .details-content p + p { margin-top: 12px; }
    .details-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
    footer { display: flex; justify-content: center; flex-wrap: wrap; gap: 0 20px; padding: 18px 0 32px; color: var(--muted); font-size: 12px; }
    footer a { display: inline-flex; align-items: center; min-height: 44px; }
    footer a:hover, .back:hover { color: var(--text); }
    @media (max-width: 480px) { .nav { padding: 12px 20px; } main { margin-top: 20px; padding: 0 16px; } .card { padding: 24px 20px; border-radius: 16px; } }

@media (max-width: 360px) { .nav { flex-wrap: wrap; gap: 4px 12px; } .nav-links { margin-left: auto; } }