:root{
  --navy:#0F284C;
  --ink:#13233B;
  --muted:#6F7B8C;
  --line:#E4E7EC;
  --sand:#EFDBB2;
  --aqua:#67D7D2;
  --paper:#FFFFFF;
  --bg:#F8F7F4;
  --danger:#B4233A;
}
*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{min-height:100dvh}
button{font:inherit}
.login-shell{height:100dvh;display:grid;place-items:center;padding:clamp(12px,2vw,28px);overflow:hidden;background:
  radial-gradient(circle at 8% 8%,rgba(239,219,178,.38),transparent 23%),
  radial-gradient(circle at 92% 90%,rgba(103,215,210,.16),transparent 20%),
  linear-gradient(180deg,#FBFAF8 0%,#F6F5F2 100%)}
.login-card{width:min(1020px,100%);max-height:calc(100dvh - clamp(24px,4vw,56px));display:grid;grid-template-columns:minmax(0,1.05fr) minmax(350px,.78fr);background:rgba(255,255,255,.94);border:1px solid rgba(15,40,76,.08);border-radius:30px;box-shadow:0 24px 70px rgba(15,40,76,.08);overflow:hidden}
.intro-panel{position:relative;display:flex;flex-direction:column;justify-content:space-between;min-width:0;padding:clamp(34px,5vw,62px);background:linear-gradient(145deg,#FFFFFF 0%,#FDFBF7 100%);border-right:1px solid var(--line)}
.product-kicker{display:flex;align-items:center;gap:10px;color:#536176;font-size:10px;font-weight:900;letter-spacing:.18em}
.product-kicker span{width:30px;height:2px;border-radius:999px;background:var(--sand)}
.intro-copy{margin:auto 0}
.intro-copy h1{margin:0;color:var(--navy);font-size:clamp(44px,5.2vw,70px);line-height:.98;letter-spacing:-.055em;font-weight:780}
.intro-copy p{max-width:480px;margin:20px 0 0;color:var(--muted);font-size:clamp(15px,1.5vw,18px);line-height:1.65}
.signal-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px}
.signal-row span{display:inline-flex;align-items:center;gap:7px;padding:8px 10px;border:1px solid #E9EBEF;border-radius:999px;background:#FFF;color:#687487;font-size:10px;font-weight:800}
.signal-row i{width:7px;height:7px;border-radius:50%;background:var(--aqua);box-shadow:0 0 0 4px rgba(103,215,210,.10)}
.signin-panel{display:flex;flex-direction:column;justify-content:center;min-width:0;padding:clamp(32px,4vw,52px);background:#FFF}
.signin-kicker{color:#7A8799;font-size:10px;font-weight:900;letter-spacing:.16em}
.signin-panel h2{margin:14px 0 10px;color:var(--navy);font-size:clamp(31px,3vw,42px);line-height:1.05;letter-spacing:-.04em;font-weight:800}
.signin-copy{margin:0 0 26px;color:var(--muted);font-size:14px;line-height:1.6}
.microsoft-button{width:100%;min-height:76px;display:grid;grid-template-columns:26px minmax(0,1fr) 24px;align-items:center;gap:14px;padding:14px 16px;border:1px solid #D9E0E7;border-radius:17px;background:#FFF;color:var(--ink);text-align:left;cursor:pointer;box-shadow:0 8px 24px rgba(15,40,76,.05);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}
.microsoft-button:hover{transform:translateY(-1px);border-color:#B9C5D1;background:#FFFEFC;box-shadow:0 14px 30px rgba(15,40,76,.09)}
.microsoft-button:focus-visible{outline:3px solid rgba(103,215,210,.28);outline-offset:3px}
.microsoft-button:disabled{cursor:wait;opacity:.66;transform:none}
.ms-logo{width:24px;height:24px;display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:2px}
.ms-logo i:nth-child(1){background:#F25022}.ms-logo i:nth-child(2){background:#7FBA00}.ms-logo i:nth-child(3){background:#00A4EF}.ms-logo i:nth-child(4){background:#FFB900}
.ms-copy{min-width:0}.ms-copy b{display:block;color:#15253C;font-size:14px}.ms-copy small{display:block;margin-top:4px;color:#8A95A5;font-size:10px;font-weight:700}.arrow{justify-self:end;color:#8190A4;font-size:22px}
.error{min-height:20px;margin-top:9px;color:var(--danger);font-size:11px;font-weight:750;line-height:1.4}
.security-note{display:flex;gap:11px;align-items:flex-start;margin-top:17px;padding-top:17px;border-top:1px solid #ECEEF2}
.shield{width:32px;height:32px;border-radius:11px;background:#EFFAF8;display:grid;place-items:center;flex:0 0 auto}.shield svg{width:17px;height:17px;fill:none;stroke:#138F89;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.security-note strong{display:block;color:#3A4960;font-size:11px}.security-note small{display:block;margin-top:3px;color:#8994A3;font-size:10px;line-height:1.45}.auth-hint{margin:15px 0 0;text-align:center;color:#A0A8B5;font-size:9px}
@media(max-width:760px){
  .login-shell{padding:12px}
  .login-card{grid-template-columns:1fr;max-width:560px;border-radius:24px}
  .intro-panel{padding:24px 24px 20px;border-right:0;border-bottom:1px solid var(--line);justify-content:flex-start}
  .intro-copy{margin:18px 0 0}.intro-copy h1{font-size:42px}.intro-copy p{margin-top:10px;font-size:14px}.signal-row{margin-top:18px}
  .signin-panel{padding:24px}.signin-panel h2{font-size:32px}.signin-copy{margin-bottom:18px}.microsoft-button{min-height:70px}
}
@media(max-width:420px){
  .login-shell{padding:8px}.login-card{border-radius:20px}.intro-panel,.signin-panel{padding:20px}.intro-copy h1{font-size:36px}.signal-row span:nth-child(3){display:none}.signin-panel h2{font-size:29px}.microsoft-button{padding:12px 14px}
}
@media(max-height:690px){
  .login-card{grid-template-columns:minmax(0,1fr) minmax(330px,.78fr)}
  .intro-panel{padding:30px 38px}.signin-panel{padding:30px 34px}.intro-copy h1{font-size:46px}.intro-copy p{font-size:14px;margin-top:12px}.signal-row{margin-top:20px}.security-note{margin-top:12px;padding-top:12px}.auth-hint{margin-top:10px}.signin-copy{margin-bottom:18px}
}
@media(max-width:760px) and (max-height:690px){
  .login-card{grid-template-columns:1fr}.intro-panel{padding:17px 20px 15px}.intro-copy{margin-top:10px}.intro-copy h1{font-size:32px}.intro-copy p{display:none}.signal-row{display:none}.signin-panel{padding:18px 20px}.signin-panel h2{font-size:27px;margin:10px 0 6px}.signin-copy{font-size:12px;margin-bottom:12px}.microsoft-button{min-height:62px}.security-note{margin-top:10px;padding-top:10px}.auth-hint{display:none}
}