:root{color-scheme:light;--paper:#f5f6f8;--surface:#fff;--ink:#182330;--muted:#586574;--line:#d6dde5;--blue:#215fc0;--action:#215fc0;--field:#fff;--error-bg:#fff0ee;--error-ink:#a52218}
:root[data-theme=dark]{color-scheme:dark;--paper:#10151d;--surface:#181f29;--ink:#edf1f7;--muted:#aab5c4;--line:#35404f;--blue:#9bbfff;--action:#2861bb;--field:#111923;--error-bg:#3a2225;--error-ink:#ffc1ba}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}.login-shell{width:min(100%,460px);margin:clamp(32px,10vh,96px) auto 0;padding:0 20px 32px}.wordmark{display:inline-block;font-size:28px;font-weight:750;letter-spacing:-1px;color:var(--ink);text-decoration:none;margin-bottom:24px}.wordmark span{color:var(--blue)}.login-card{padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 28px rgba(0,0,0,.04)}.eyebrow{font-size:11px;font-weight:650;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);margin:0 0 10px}h1{font-size:28px;line-height:1.2;letter-spacing:-.035em;margin:0 0 12px}.intro{color:var(--muted);font-size:15px;margin:0 0 24px}label{display:block;font-size:14px;font-weight:550;margin:18px 0 7px}input{display:block;width:100%;min-height:48px;border:1px solid var(--line);border-radius:8px;background:var(--field);color:var(--ink);font:inherit;font-size:16px;padding:11px 12px}button{width:100%;min-height:48px;display:flex;align-items:center;justify-content:space-between;margin-top:24px;padding:12px 16px;border:0;border-radius:8px;background:var(--action);color:white;font:inherit;font-weight:600;cursor:pointer}button:hover{filter:brightness(1.1)}:is(a,button,input):focus-visible{outline:2px solid var(--blue);outline-offset:3px}.access-note{margin:20px 0 0;color:var(--muted);font-size:12px;line-height:1.6}.back{display:inline-flex;align-items:center;min-height:44px;margin-top:12px;color:var(--muted);font-size:13px;text-decoration:none}.back:hover{color:var(--blue)}.error{padding:12px;border-radius:8px;background:var(--error-bg);color:var(--error-ink);font-size:14px;margin:0 0 16px}@media(max-width:420px){.login-shell{margin-top:28px;padding-inline:16px}.login-card{padding:22px}.wordmark{font-size:26px;margin-bottom:20px}h1{font-size:26px}}

.sso-button{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:48px;padding:12px 16px;background:var(--action);color:#fff;text-decoration:none;border-radius:8px;font-weight:600}.sso-button:hover{filter:brightness(1.1)}

/* Owner-supplied reference 01: compact centered sign-in card; same OIDC flow. */
body{min-height:100dvh;display:grid;place-items:center;padding:24px 16px}.login-shell{width:min(100%,420px);margin:0;padding:28px;background:var(--surface);border:1px solid var(--line);border-radius:12px;text-align:center}.wordmark{display:inline-flex;align-items:center;gap:8px;font-size:20px;letter-spacing:-.03em;margin:0 0 28px}.wordmark .login-brand-icon{display:grid;place-items:center;width:30px;height:32px;border-radius:8px;background:var(--action);color:#fff;font-size:23px;font-weight:750}.wordmark .login-brand-name{color:var(--ink)}.login-card{padding:0;border:0;border-radius:0;box-shadow:none}.login-card h1{font-size:20px;line-height:1.25}.eyebrow{font-size:10px;letter-spacing:.06em}.intro{font-size:14px;line-height:1.45;margin-bottom:24px}.sso-button{font-size:14px;justify-content:center}.access-note{margin-top:12px}.back{margin-top:16px;color:var(--blue)}.login-card .error{text-align:left}.login-card form{text-align:left}
@media(max-width:420px){body{padding:20px 16px}.login-shell{padding:24px 20px}.wordmark{font-size:20px;margin-bottom:24px}.login-card h1{font-size:20px}}