.studio-body { font-size: 16px; }
#studio-app { height: 100%; }
.studio-auth-shell { display: flex; flex-direction: column; height: 100vh; height: 100dvh; overflow: auto; background: var(--canvas); }
.studio-auth-header { display: flex; flex-shrink: 0; justify-content: space-between; align-items: center; padding: 24px 32px; }
.studio-auth-brand { display: flex; gap: 10px; align-items: center; text-decoration: none; font-size: 16px; font-weight: 600; }
.studio-auth-brand svg { width: 24px; height: 24px; }
.studio-auth-center { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 28px 20px 70px; }
.studio-auth-card { width: min(100%, 420px); }
.studio-auth-mark { display: grid; place-items: center; width: 52px; height: 52px; margin: 0 auto 24px; border: 1px solid var(--line); border-radius: 15px; background: var(--surface-subtle); }
.studio-auth-mark svg { width: 27px; height: 27px; stroke-width: 1.5; }
.studio-auth-card h1 { margin: 0; text-align: center; font-size: clamp(28px, 3vw, 34px); font-weight: 550; letter-spacing: -.8px; }
.studio-auth-intro { margin: 12px 0 32px; text-align: center; color: var(--muted); font-size: 16px; line-height: 1.8; }
#studio-auth-form { display: flex; flex-direction: column; }
#studio-auth-form label { margin: 0 0 8px; font-size: 14px; font-weight: 500; }
#studio-auth-form input { width: 100%; min-height: 46px; padding: 11px 13px; border: 1px solid var(--input-line); border-radius: 9px; background: var(--surface); color: var(--ink); font: inherit; font-size: 16px; }
#studio-auth-form input::placeholder { color: var(--fine); }
#studio-auth-form input:focus { border-color: var(--fine); outline: 2px solid var(--line); outline-offset: 2px; }
#studio-auth-form input + label { margin-top: 20px; }
.studio-field-hint { margin: 7px 0 20px; color: var(--muted); font-size: 14px; line-height: 1.6; }
.studio-auth-error { margin: 16px 0 0; padding: 10px 12px; border: 1px solid var(--danger-line); border-radius: 8px; color: var(--danger); background: var(--danger-soft); font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
.studio-auth-submit { display: block; min-height: 46px; margin-top: 26px; font-size: 16px; }
.studio-auth-switch { margin: 24px 0 0; text-align: center; color: var(--muted); font-size: 14px; }
.studio-auth-switch button { margin-left: 6px; padding: 3px 0; background: transparent; color: var(--ink); text-decoration: underline; text-underline-offset: 4px; }
.studio-auth-footer { max-width: 440px; margin: 36px 0 0; text-align: center; color: var(--fine); font-size: 14px; line-height: 1.8; }
.standalone-studio .images-shell { grid-template-columns: 264px minmax(0, 1fr); }
.standalone-studio .images-new, .standalone-studio .images-history-heading, .standalone-studio .images-history-empty, .standalone-studio .image-job strong, .standalone-studio .images-identity strong, .standalone-studio .images-title p, .standalone-studio .images-select-label, .standalone-studio .images-select-label select, .standalone-studio .images-upload, .standalone-studio .images-compose-note, .standalone-studio .small-button, .standalone-studio .images-account .foot-row { font-size: 14px; }
.standalone-studio .image-job small, .standalone-studio .image-result-heading p, .standalone-studio .image-result figcaption button, .standalone-studio .image-result figcaption a, .standalone-studio .image-lightbox h2 { font-size: 14px; }
.standalone-studio .images-title h1, .standalone-studio .images-message, .standalone-studio .images-welcome p, .standalone-studio .images-prompt, .standalone-studio .image-result-heading h2, .standalone-studio .image-progress strong, .standalone-studio .image-progress p, .standalone-studio .image-failed p { font-size: 16px; }
.standalone-studio .images-header { min-height: 78px; }
.standalone-studio .icon-button { width: 36px; height: 36px; }
.standalone-studio .images-identity > span:last-child { min-width: 0; }
.standalone-studio .images-identity strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.standalone-studio .images-welcome { max-width: 550px; }
.standalone-studio .images-welcome p { max-width: 450px; }
.standalone-studio .images-controls { gap: 8px 12px; }
.standalone-studio .images-upload, .standalone-studio .images-select-label select { min-height: 38px; }
.standalone-studio .images-generate { min-height: 40px; }
.standalone-studio .image-job { padding-block: 13px; gap: 8px; }
.studio-logout { width: 100%; }
.studio-mobile-logout { display: none; }
@media (max-width: 760px) {
  .studio-auth-header { padding: 20px; }
  .studio-auth-center { justify-content: flex-start; padding-top: 38px; }
  .studio-auth-intro { margin-bottom: 26px; }
  .standalone-studio .images-shell { grid-template-columns: 1fr; }
  .standalone-studio .images-brand strong { max-width: 104px; font-size: 14px; }
  .standalone-studio .images-brand svg { width: 19px; }
  .standalone-studio .images-sidebar { gap: 9px; }
  .standalone-studio .images-header { min-height: 76px; gap: 6px; }
  .standalone-studio .images-title p { font-size: 14px; line-height: 1.5; }
  .standalone-studio .images-title > svg { display: none; }
  .standalone-studio .images-header-actions { gap: 2px; }
  .studio-mobile-logout { display: grid; }
  .standalone-studio .images-select-label select { max-width: 110px; }
  .standalone-studio .images-controls { gap: 4px 9px; }
  .standalone-studio .images-generate { padding-inline: 12px; }
  .standalone-studio .images-compose-note { margin-top: 9px; }
  .standalone-studio .images-stage { padding-top: 14px; }
}
@media (max-width: 400px) {
  .standalone-studio .images-select-label { gap: 1px; }
  .standalone-studio .images-select-label select { max-width: 98px; }
  .standalone-studio .images-compose-note { font-size: 14px; }
  .standalone-studio .images-generate { width: 100%; justify-content: center; margin-top: 6px; }
}