.login-screen { position: relative; z-index: 10; display: grid; grid-template-columns: minmax(0, 63.3fr) minmax(0, 36.7fr); min-height: 100svh; background: #fdfcf9; color: #092e5b; }
.login-flow:has(.app-shell) .login-screen { position: fixed; inset: 0; overflow-y: auto; }
.login-scene { position: relative; overflow: hidden; min-height: 100svh; background: #d4e4ed; }
.login-media { position: absolute; inset: 0; transform-origin: 38% 50%; container-type: size; overflow: hidden; }
.login-tokyo-image { display: block; width: 100%; height: 100%; object-fit: cover; object-position: center; }
.login-scene-brand { position: absolute; top: 6.5%; left: 5.3%; font-size: clamp(24px, 1.9vw, 36px); font-weight: 800; letter-spacing: -.04em; }
.login-slogan { position: absolute; top: 18.2%; left: 5.3%; margin: 0; font-size: clamp(44px, 4.65vw, 90px); line-height: 1.22; letter-spacing: .025em; font-weight: 800; color: #082e5e; }
.login-form-panel { position: relative; display: flex; align-items: center; padding: 46px clamp(30px, 4.8vw, 92px); background: #fdfcf9; }
.login-form-inner { width: 100%; max-width: 525px; margin-inline: auto; }
.login-brand { font-size: clamp(28px, 2.4vw, 46px); font-weight: 800; letter-spacing: -.05em; margin-bottom: clamp(38px, 6.2vh, 64px); }
.login-welcome h2 { font-size: clamp(32px, 3.1vw, 60px); font-weight: 750; letter-spacing: .015em; line-height: 1.3; margin: 0 0 8px; }
.login-welcome p { color: #657087; font-size: clamp(16px, 1.65vw, 30px); letter-spacing: .01em; margin: 0 0 48px; white-space: nowrap; }
.login-screen fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.login-field label { display: block; font-size: 17px; font-weight: 600; color: #5a6476; margin-bottom: 10px; }
.login-input { display: flex; align-items: center; gap: 15px; height: 59px; padding: 0 18px; border: 1px solid #d9dde4; border-radius: 11px; background: #fff9; color: #798194; transition: border-color .2s, box-shadow .2s; }
.login-input:focus-within { border-color: #2e80ff; box-shadow: 0 0 0 3px #2e80ff18; }
.login-input > svg { flex-shrink: 0; }
.login-input input { min-width: 0; width: 100%; border: 0; outline: 0; box-shadow: none; background: transparent; padding: 0; border-radius: 0; color: #39435a; font-size: 18px; height: 100%; }
.login-input input::placeholder { color: #7e8595; opacity: 1; }
.login-screen .login-eye { padding: 4px; min-height: 36px; border: 0; background: transparent; border-radius: 6px; color: #758096; flex-shrink: 0; }
.login-field { margin-bottom: 31px; }
.login-options { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin: 0 0 32px; color: #657087; font-size: 16px; }
.login-options label { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.login-options input { width: 24px; height: 24px; margin: 0; accent-color: #2c7eff; }
.login-screen .login-link { padding: 0; border: 0; background: transparent; color: #0866ed; border-radius: 3px; min-height: 32px; font-weight: 600; }
.login-screen .login-link:hover { color: #0c55bd; text-decoration: underline; }
.login-screen .login-submit { width: 100%; min-height: 61px; border: 0; border-radius: 12px; background: #0866ff; color: white; font-size: 20px; font-weight: 650; box-shadow: 0 5px 14px #2f80ff0d; }
.login-screen .login-submit:hover { background: #206feb; }
.login-screen .login-submit:disabled { opacity: 1; cursor: wait; }
.login-register { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 40px; color: #6b7487; font-size: 16px; }
.login-demo-note { margin: 26px 0 0; font-size: 11px; line-height: 1.9; color: #747d8d; text-align: center; }
.login-notice { display: flex; align-items: flex-start; gap: 10px; margin: 0 0 18px; padding: 14px 16px; border: 1px solid #dc827a; border-left: 4px solid #b42318; border-radius: 10px; background: #fff0ed; color: #9c2018; text-align: left; overflow-wrap: anywhere; }
.login-notice > svg { flex-shrink: 0; margin-top: 1px; }
.login-notice strong { display: block; font-size: 16px; line-height: 1.5; }
.login-notice p { margin: 4px 0 0; font-size: 15px; line-height: 1.6; }
.login-status { min-height: 19px; margin: 8px 0 0; font-size: 12px; color: #526780; text-align: center; }
.login-screen :focus-visible { outline: 3px solid #276ee0; outline-offset: 4px; }
.login-screen input:focus-visible { outline: none; }
.login-options input:focus-visible { outline: 3px solid #276ee0; }
.login-screen:has(input:focus) .login-slogan { text-shadow: 0 2px 18px #ffffff60; }
.login-spinner { animation: login-spin 1s linear infinite; }
@keyframes login-spin { to { transform: rotate(360deg); } }
@media (min-width: 901px) and (max-height: 800px) {
  .login-form-panel { padding-block: 26px; }
  .login-brand { margin-bottom: 30px; }
  .login-welcome p { margin-bottom: 28px; }
  .login-options { margin-bottom: 22px; }
  .login-register { margin-top: 24px; }
  .login-demo-note { margin-top: 16px; }
}
@media (min-width: 901px) and (max-width: 1200px) {
  .login-screen { grid-template-columns: minmax(0, 1fr) 390px; }
  .login-form-panel { padding-inline: 34px; }
}
@media (max-width: 900px) {
  .login-screen { grid-template-columns: 1fr; }
  .login-scene { min-height: 330px; height: 42svh; max-height: 460px; }
  .login-scene-brand { top: 24px; left: 7%; font-size: 24px; }
  .login-tokyo-image { object-position: center 58%; }
  .login-slogan { font-size: clamp(32px, 6vw, 54px); top: 88px; left: 7%; }
  .login-form-panel { padding: 32px 26px 22px; }
  .login-brand { font-size: 28px; margin-bottom: 24px; }
  .login-welcome h2 { font-size: 34px; }
  .login-welcome p { font-size: 18px; margin-bottom: 30px; }
  .login-register { margin-top: 22px; }
  .login-demo-note { margin-top: 18px; }
}
@media (prefers-reduced-motion: reduce) { .login-spinner { animation: none; } .login-screen * { transition: none !important; } }
.login-screen input { color-scheme: light; }

.login-dashboard.is-entering main { visibility: hidden; }
.login-screen .login-eye svg { width: 24px; height: 24px; }

/* Real alpha cloud sprites drift across an opaque mist core at the scene cut. */
.cloud-transition { position: fixed; inset: 0; z-index: 40; overflow: hidden; visibility: hidden; opacity: 0; pointer-events: none; }
.cloud-veil { position: absolute; inset: 0; background: #f1f4f4; opacity: 0; }
.cloud-bank { position: absolute; width: 100vw; height: 110vh; object-fit: fill; opacity: 0; will-change: transform, opacity; user-select: none; }
.cloud-bank-left { left: -27vw; top: -8vh; }
.cloud-bank-right { right: -27vw; top: -6vh; }
.cloud-bank-low { left: 0; bottom: -44vh; width: 110vw; }
.cloud-bank-high { left: -5vw; top: -48vh; width: 110vw; }
@media (max-width: 900px) {
  .cloud-bank { width: 160vw; height: 85vh; }
  .cloud-bank-left { left: -75vw; top: 4vh; }
  .cloud-bank-right { right: -75vw; top: 10vh; }
  .cloud-bank-low { left: -30vw; bottom: -28vh; }
  .cloud-bank-high { left: -30vw; top: -30vh; }
}