*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

  :root {
    /* Color, type and chip tokens live in /tokens.css. */
    --r-island-s: 20px;
  }

  html[data-theme="dark"] {
  }

  html {
    height: 100%;
    background: radial-gradient(125% 120% at 0% 0%, #f4f6f8 0%, #e9ecef 52%, #e3e7ea 100%);
  }
  html[data-theme="dark"] {
    background: radial-gradient(125% 120% at 0% 0%, #171c25 0%, #0c0e13 55%, #08090d 100%);
  }
  body {
    height: 100%;
    font-family: var(--sans);
    background: transparent;
    color: var(--ink);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    font-size: 14px;
    line-height: 1.45;
  }
  #root { height: 100%; width: 100%; }

  .num { font-family: var(--mono); font-feature-settings: "tnum" 1; letter-spacing: -0.01em; }
  button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

  /* ---------- Layout ---------- */
  .welcome-wrap {
    position: fixed; inset: 0; z-index: 1;
    display: grid; place-items: center;
    overflow: hidden; padding: 24px;
  }
  .welcome-spots {
    position: absolute; inset: -10%; z-index: 0; pointer-events: none;
    background:
      radial-gradient(38% 48% at 30% 28%, rgba(31,122,77,.14), transparent 70%),
      radial-gradient(36% 44% at 72% 26%, rgba(58,93,176,.12), transparent 72%),
      radial-gradient(42% 50% at 50% 78%, rgba(176,125,30,.10), transparent 70%),
      radial-gradient(40% 46% at 16% 88%, rgba(106,77,143,.10), transparent 72%);
    filter: saturate(120%);
  }
  html[data-theme="dark"] .welcome-spots { filter: saturate(150%) brightness(1.15); }

  .welcome-card {
    position: relative; z-index: 1; width: 400px; max-width: 92vw;
    padding: 34px 32px; display: flex; flex-direction: column; gap: 16px;
    background: var(--glass-login);
    backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: var(--r-island-s);
    animation: cardIn .4s cubic-bezier(.2,.7,.2,1) both;
  }
  @keyframes cardIn { from { opacity: 0; transform: translateY(10px) scale(.99); } to { opacity: 1; transform: none; } }
  @media (prefers-reduced-motion: reduce) { .welcome-card { animation: none; } }

  .welcome-brand { display: flex; align-items: center; gap: 11px; }
  .welcome-mark {
    width: 36px; height: 36px; border-radius: 9px;
    background: var(--chip); color: var(--chip-ink);
    display: grid; place-items: center; font-weight: 700; font-size: 16px;
    letter-spacing: -0.02em; flex: none;
  }
  .welcome-brand-name { font-weight: 600; font-size: 14.5px; letter-spacing: -0.01em; }
  .welcome-brand-sub { font-size: 11.5px; color: var(--ink-3); margin-top: 1px; }

  .welcome-title { font-size: 19px; font-weight: 600; letter-spacing: -0.02em; margin-top: 6px; }
  .welcome-lead { font-size: 12.5px; color: var(--ink-2); line-height: 1.45; margin-top: -6px; }

  /* ---------- Segmented role switch ---------- */
  .seg { display: inline-flex; background: rgba(255,255,255,.45); border: 1px solid rgba(255,255,255,.6); border-radius: 999px; padding: 3px; gap: 2px; }
  html[data-theme="dark"] .seg { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.1); }
  .seg button { padding: 8px 14px; border-radius: 999px; font-size: 12.5px; font-weight: 600; color: var(--ink-2); transition: background .13s, color .13s, border-color .13s, box-shadow .13s, opacity .13s, transform .13s; }
  .seg button.active { background: var(--chip); color: var(--chip-ink); }
  html[data-theme="dark"] .seg button.active { background: rgba(255,255,255,.12); color: var(--ink); }
  .seg button:not(.active):hover { color: var(--ink); }
  .role-seg { display: flex; width: 100%; margin-top: 2px; }
  .role-seg button { flex: 1; }

  /* ---------- Fields ---------- */
  label.fld { display: block; }
  label.fld .lab { font-size: 12px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; display: block; }
  .input { width: 100%; padding: 11px 13px; border: 1px solid var(--line); border-radius: 9px; font-family: inherit; font-size: 13.5px; background: var(--surface); color: var(--ink); transition: border-color .14s; }
  .input:focus { outline: none; border-color: var(--ink-3); }
  .input.mono { font-family: var(--mono); }
  .input:disabled { opacity: .6; }
  .pass-row { display: flex; align-items: center; gap: 8px; }
  .iconbtn { width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center; color: var(--ink-2); border: 1px solid var(--line); background: var(--surface); flex: none; transition: background .13s, color .13s; }
  .iconbtn:hover { background: var(--surface-2); color: var(--ink); }

  /* ---------- Pill / error ---------- */
  .pill { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 20px; }
  .pill.red { background: var(--red-bg); color: var(--red); }
  .welcome-err { font-size: 12.5px; padding: 8px 12px; justify-content: center; }

  /* ---------- Button ---------- */
  .btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 12px 16px; border-radius: 9px; font-weight: 600; font-size: 13.5px; transition: background .14s, color .14s, border-color .14s, box-shadow .14s, opacity .14s, transform .14s; }
  .btn.primary { background: var(--chip); color: var(--chip-ink); }
  .btn.primary:hover { background: var(--chip-hover); }
  .btn:disabled { opacity: .6; cursor: default; }
  .welcome-submit { margin-top: 4px; width: 100%; }

  /* ---------- Мобильная версия ---------- */
  @media (max-width: 480px) {
    .welcome-wrap {
      padding: 14px;
      /* якорим сверху и разрешаем прокрутку — экранная клавиатура не перекрывает форму */
      align-items: flex-start;
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
    }
    .welcome-card {
      width: 100%;
      max-width: 440px;
      margin: auto;               /* вертикальное центрирование, пока помещается */
      padding: 26px 20px;
      gap: 14px;
      border-radius: 18px;
    }
    .welcome-mark { width: 34px; height: 34px; }
    .welcome-title { font-size: 18px; margin-top: 4px; }
    .welcome-lead { font-size: 12px; }
    .role-seg button { padding: 10px 12px; }        /* крупнее тап-таргет */
    /* 16px — чтобы iOS не зумил страницу при фокусе поля */
    .input { font-size: 16px; padding: 12px 13px; }
    .iconbtn { width: 46px; height: 46px; }
    .btn { padding: 13px 16px; font-size: 14px; }
  }

  /* Совсем узкие экраны — переключатель ролей в столбик */
  @media (max-width: 340px) {
    .role-seg { flex-direction: column; border-radius: 16px; }
    .role-seg button { border-radius: 14px; }
  }