/* 用地クラウド v2.1 — ログイン / 招待ページ(2カラム: ブランド面 + フォーム面) */
html, body { height: 100%; }
body { margin: 0; background: var(--page); color: var(--ink); font-family: var(--font); -webkit-font-smoothing: antialiased; }
.auth { min-height: 100dvh; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); }
.auth-brand { position: relative; isolation: isolate; overflow: hidden; color: #fff; padding: 44px 52px; display: flex; flex-direction: column;
  background: linear-gradient(160deg, #12274f 0%, #0b1a39 55%, #0a1428 100%); }
.auth-brand::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(640px 420px at 10% 0%, rgba(255,200,61,.22), transparent 60%), radial-gradient(520px 520px at 100% 100%, rgba(36,86,164,.45), transparent 60%); }
.auth-brand::after { content: ""; position: absolute; inset: -6% -10% -10% -6%; z-index: -1; pointer-events: none; opacity: .11; transform: perspective(1200px) rotateX(8deg) rotate(-3deg);
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.auth-logo { display: flex; align-items: center; gap: 10px; font-size: 17px; font-weight: 600; letter-spacing: -.02em; }
.auth-logo svg { filter: drop-shadow(0 0 12px rgba(255,200,61,.5)); }
.auth-logo em { font-family: var(--mono); font-style: normal; font-size: 10px; letter-spacing: .06em; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; padding: 2px 7px; color: rgba(255,255,255,.75); }
.auth-copy { margin: auto 0; max-width: 560px; }
.auth-copy .eyebrow { color: rgba(255,200,61,.9); margin-bottom: 18px; }
.auth-copy h2 { font-size: clamp(28px, 3vw, 40px); line-height: 1.3; letter-spacing: -.015em; margin: 0 0 18px; font-weight: 600; font-feature-settings: "palt"; }
.auth-copy h2 span { white-space: nowrap; }
.auth-copy p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.72); margin: 0; }
.auth-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.auth-points div { border-top: 1px solid rgba(255,255,255,.16); padding-top: 12px; }
.auth-points b { display: block; font-size: 22px; letter-spacing: -.03em; font-weight: 600; font-variant-numeric: tabular-nums; }
.auth-points small { display: block; font-size: 11.5px; color: rgba(255,255,255,.62); margin-top: 2px; line-height: 1.5; }
.auth-foot { font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; color: rgba(255,255,255,.42); text-transform: uppercase; }
.auth-form { display: flex; align-items: center; justify-content: center; padding: 40px 24px; }
.box { width: min(100%, 400px); }
.box h1 { font-size: 24px; letter-spacing: -.01em; margin: 0 0 6px; font-weight: 600; }
.box .lead { font-size: 13px; color: var(--sub); margin: 0 0 22px; line-height: 1.7; }
label { display: flex; align-items: center; font-size: 12px; color: var(--mut); margin: 14px 0 5px; font-weight: 500; }
label .link { margin: 0 0 0 auto; font-size: 12px; }
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 46px; }
.pw-eye { position: absolute; right: 2px; top: 2px; bottom: 2px; width: 42px; border: none; background: transparent; color: var(--mut); cursor: pointer; border-radius: 9px; display: grid; place-items: center; }
.pw-eye svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.pw-eye:active { background: var(--surface-3); }
input[type=text], input[type=email], input[type=password] { width: 100%; box-sizing: border-box; padding: 12px 13px; border: 1px solid var(--line-2); border-radius: 11px; font-size: 15px; font-family: inherit;
  background: #fff; box-shadow: 0 1px 2px rgba(21,22,28,.03) inset; transition: border-color .15s ease, box-shadow .15s ease; }
input:focus { outline: none; border-color: var(--navy-2); box-shadow: 0 0 0 3px rgba(36,86,164,.16); }
.rem { display: flex; align-items: center; gap: 8px; font-size: 12.5px; color: var(--sub); margin-top: 14px; font-weight: 400; }
.rem input { width: 17px; height: 17px; accent-color: var(--navy); margin: 0; }
button { font-family: inherit; }
.submit { width: 100%; margin-top: 16px; padding: 13px; border: none; border-radius: 12px; color: #fff; font-size: 15px; font-weight: 600; cursor: pointer; letter-spacing: -.005em;
  background: linear-gradient(180deg, #ec6238 0%, #dc4f26 100%); box-shadow: 0 1px 0 rgba(255,255,255,.22) inset, 0 10px 22px -12px rgba(228,85,43,.8);
  transition: transform .11s cubic-bezier(.23,1,.32,1), filter .15s ease; }
.submit:active { transform: scale(.98); }
.submit:disabled { opacity: .6; transform: none; }
.submit.ghost { background: var(--surface-3); color: var(--navy); box-shadow: none; margin-top: 8px; }
@media (hover: hover) { .submit:hover { filter: brightness(1.05); } }
.err { color: var(--crit); font-size: 12.5px; min-height: 16px; margin-top: 10px; line-height: 1.5; }
.err.ok { color: var(--good); }
.hint { font-size: 11.5px; color: var(--mut); margin-top: 18px; line-height: 1.7; }
.link { background: none; border: none; color: var(--navy); font-size: 12.5px; padding: 0; margin: 14px 0 0; width: auto; text-decoration: underline; text-underline-offset: 3px; font-weight: 500; cursor: pointer; }
#forgot { display: none; margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line-2); }
.who { font-size: 13px; color: var(--sub); line-height: 1.65; background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px; padding: 11px 13px; margin: 4px 0 2px; }
.who b { color: var(--navy); }
.who .mono { font-family: var(--mono); font-size: 12px; }
.strength { height: 4px; border-radius: 3px; background: var(--surface-3); margin-top: 8px; overflow: hidden; }
.strength i { display: block; height: 100%; width: 0; background: var(--crit); transition: width .2s ease, background .2s ease; }
.bad { text-align: center; padding: 10px 0; color: var(--sub); font-size: 13.5px; line-height: 1.7; }
.bad a { color: var(--navy); }
.mobile-brand { display: none; }
@media (max-width: 900px) {
  .auth { grid-template-columns: 1fr; grid-template-rows: auto 1fr; background: linear-gradient(180deg, #0b1a39 0, #0b1a39 196px, var(--page) 196px); }
  .auth-brand { display: flex; padding: calc(18px + env(safe-area-inset-top)) 20px 44px; min-height: 196px; height: 196px; overflow: hidden; }
  .auth-brand::after { opacity: .14; inset: -10% -20% -30% -10%; }
  .auth-copy { margin: 14px 0 0; max-width: none; }
  .auth-copy .eyebrow { display: none; }
  .auth-copy h2 { font-size: 20px; margin: 0; line-height: 1.4; }
  .auth-copy h2 br { display: none; }
  .auth-copy p, .auth-points, .auth-foot { display: none; }
  .auth-logo { font-size: 15px; }
  .mobile-brand { display: none; }
  .auth-form { padding: 0 16px max(28px, env(safe-area-inset-bottom)); align-items: flex-start; margin-top: -26px; position: relative; z-index: 1; }
  .box { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 28px 18px 22px; box-shadow: var(--sh-lg); }
  .box h1 { margin-top: 0; }
  input[type=text], input[type=email], input[type=password] { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { .submit { transition: none; } }