.session-dialog {
  width: min(420px, calc(100vw - 32px));
  max-width: calc(100% - 32px);
  max-height: calc(100dvh - 32px);
  margin: auto;
  padding: 0;
  border: 1px solid #dce6f8;
  border-radius: 24px;
  color: #152745;
  background: #fff;
  box-shadow: 0 24px 80px rgb(0 28 84 / 22%);
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}
.session-dialog::backdrop { background: rgb(9 27 55 / 55%); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
.session-dialog:not([open]) { display: none; }
.session-dialog-fallback[open] { position: fixed; inset: 0; z-index: 10000; box-shadow: 0 0 0 100vmax rgb(9 27 55 / 75%); }
.session-sheet { padding: 28px 24px max(24px, env(safe-area-inset-bottom)); }
.session-eyebrow { margin: 0 0 12px; font-size: 12px; font-weight: 650; letter-spacing: .08em; color: #003da5; }
.session-sheet h2 { margin: 0 0 12px; font-size: 26px; line-height: 1.3; }
#session-description { margin: 0 0 24px; font-size: 14px; line-height: 1.8; color: #596982; }
.session-form { display: grid; gap: 12px; }
.session-form[hidden] { display: none; }
.session-label { font-size: 14px; font-weight: 650; }
#session-access-code { box-sizing: border-box; width: 100%; min-width: 0; min-height: 48px; padding: 12px; font: inherit; font-size: 16px; color: #152745; background: #f7f9fd; border: 1px solid #bbcce7; border-radius: 12px; }
.session-submit,.session-retry { box-sizing: border-box; min-height: 48px; padding: 12px 16px; font: inherit; font-size: 15px; font-weight: 650; border-radius: 12px; cursor: pointer; }
.session-submit { color: #fff; background: #003da5; border: 1px solid #003da5; }
.session-retry { width: 100%; color: #003da5; background: #eef4ff; border: 1px solid #ccdaf3; }
.session-submit:disabled,.session-retry:disabled { opacity: .5; cursor: default; }
.session-dialog :focus-visible { outline: 3px solid #79aaff; outline-offset: 3px; }
.session-status { margin: 18px 0; font-size: 14px; line-height: 1.7; color: #344d78; overflow-wrap: anywhere; }
.session-footnote { margin: 16px 0 0; font-size: 12px; line-height: 1.7; color: #738199; }
@media (max-width: 350px) { .session-sheet { padding: 24px 18px; } .session-sheet h2 { font-size: 23px; } }