:root,
[data-theme="light"]{
  --bg:#f6f7fb;
  --bg2:#e9eefc;
  --panel:rgba(255,255,255,.86);
  --panel2:rgba(255,255,255,.68);
  --border:rgba(15,23,42,.12);
  --text:#101827;
  --muted:#61708f;
  --blue:#4f46e5;
  --violet:#7c3aed;
  --cyan:#0891b2;
  --danger:#b91c1c;
  --shadow:0 30px 90px rgba(79,70,229,.16);
}
[data-theme="dark"]{
  --bg:#070b16;
  --bg2:#0b1124;
  --panel:rgba(17,24,44,.86);
  --panel2:rgba(15,23,42,.58);
  --border:rgba(255,255,255,.12);
  --text:#eef2ff;
  --muted:#a8b4d6;
  --blue:#6366f1;
  --violet:#8b5cf6;
  --cyan:#22d3ee;
  --danger:#fca5a5;
  --shadow:0 30px 90px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  min-height:100vh;
  font-family:Tahoma,Arial,sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 520px at 16% 6%, rgba(99,102,241,.26), transparent 58%),
    radial-gradient(800px 480px at 86% 92%, rgba(34,211,238,.16), transparent 60%),
    radial-gradient(760px 560px at 50% 120%, rgba(139,92,246,.16), transparent 55%),
    linear-gradient(180deg,var(--bg),var(--bg2));
  background-attachment: fixed;
}
a{color:#c7d2fe;text-decoration:none;font-weight:900}
.auth-shell{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:24px;
}
.auth-card{
  width:min(460px,100%);
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:26px;
  padding:24px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
}
.back-link{display:inline-block;margin-bottom:16px;color:var(--muted)}
.brand-mark{
  width:58px;height:58px;border-radius:18px;
  display:grid;place-items:center;color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--violet));
  font-weight:900;font-size:24px;
  box-shadow:0 18px 45px rgba(99,102,241,.32);
}
h1{margin:16px 0 8px;font-size:28px}
.muted{color:var(--muted);line-height:1.8}
label{display:block;margin:14px 0 7px;font-weight:900}
input{
  width:100%;
  border:1px solid var(--border);
  background:var(--panel2);
  color:var(--text);
  border-radius:16px;
  padding:14px;
  outline:none;
}
input:focus{border-color:rgba(129,140,248,.7);box-shadow:0 0 0 4px rgba(99,102,241,.18)}
input::placeholder{color:rgba(203,213,225,.78)}
[data-theme="light"] input::placeholder{color:#64748b}
button{
  width:100%;
  margin-top:18px;
  border:0;
  border-radius:16px;
  padding:15px;
  color:white;
  font-weight:900;
  cursor:pointer;
  background:linear-gradient(135deg,var(--blue),var(--violet));
  box-shadow:0 14px 34px rgba(99,102,241,.3);
}
button:disabled{opacity:.65;cursor:not-allowed}
.error{color:var(--danger);min-height:24px;margin-top:12px;font-weight:900}
.role-hint{margin:0 0 12px}
.footnote{margin-top:16px;color:var(--muted);text-align:center}
.footnote .muted-link{opacity:.85}

.landing-shell{
  min-height:100vh;
  max-width:1180px;
  margin:0 auto;
  padding:24px;
}
.landing-nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:12px 0 32px;
}
.brand-line{
  display:flex;
  align-items:center;
  gap:12px;
}
.brand-line strong,
.brand-line span{display:block}
.brand-line span{color:var(--muted);font-size:13px;margin-top:3px}
.theme-toggle{
  width:auto;
  min-width:44px;
  margin:0;
  padding:11px 14px;
  font-size:1.15rem;
  line-height:1;
  background:var(--panel);
  color:var(--text);
  border:1px solid var(--border);
  box-shadow:none;
}
.landing-grid{
  min-height:calc(100vh - 120px);
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:28px;
  align-items:center;
}
.landing-copy{
  padding:22px;
}
.eyebrow{
  display:inline-flex;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid var(--border);
  background:var(--panel2);
  color:var(--cyan);
  font-weight:900;
}
.landing-copy h1{
  margin:18px 0 12px;
  font-size:clamp(34px,6vw,64px);
  line-height:1.08;
  letter-spacing:-1.4px;
}
.landing-copy p{
  max-width:560px;
  color:var(--muted);
  line-height:1.9;
  font-size:17px;
}
.mini-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-top:26px;
}
.mini-stats div{
  padding:16px;
  border:1px solid var(--border);
  background:var(--panel2);
  border-radius:20px;
}
.mini-stats strong,
.mini-stats span{display:block}
.mini-stats span{color:var(--muted);margin-top:6px;font-size:13px}
.landing-login{
  justify-self:end;
}
.login-head{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:8px;
}
.login-head h2{
  margin:0;
  font-size:24px;
}
.login-head span{color:var(--muted)}
.small-mark{
  width:48px;
  height:48px;
  border-radius:16px;
  font-size:20px;
}
@media (max-width: 900px){
  .landing-grid{grid-template-columns:1fr;gap:10px}
  .landing-login{justify-self:stretch}
  .landing-copy{padding:4px}
  .mini-stats{grid-template-columns:1fr}
}

/* Readability pass for public auth/landing pages. */
button, .theme-toggle, .eyebrow {
  min-height:40px;
  line-height:1.35;
}
.landing-nav,
.brand-line,
.login-head {
  min-width:0;
}
.landing-nav > *,
.brand-line > *,
.login-head > * {
  min-width:0;
}
.auth-card,
.mini-stats div,
.landing-copy {
  color:var(--text);
}
.muted,
.footnote,
.brand-line span,
.landing-copy p,
.mini-stats span,
.login-head span {
  overflow-wrap:anywhere;
}
input {
  min-height:46px;
}
@media (max-width: 560px){
  .landing-nav{align-items:flex-start;flex-direction:column}
  .theme-toggle{width:100%}
  .landing-shell{padding:18px}
}

/* Final contrast guard for public buttons and pills. */
button {
  color:#fff;
  text-shadow:0 1px 1px rgba(0,0,0,.22);
}
.theme-toggle {
  color:var(--text);
  text-shadow:none;
}
[data-theme="light"] .theme-toggle {
  background:#fff;
  color:#1e293b;
  border-color:#cbd5e1;
}
.eyebrow {
  color:var(--cyan);
}

.i18n-float { position: fixed; inset-block-start: 12px; inset-inline-end: 12px; z-index: 9999; }
.i18n-switch { font: inherit; padding: 6px 10px; border-radius: 10px; cursor: pointer; background: rgba(127,127,127,0.12); border: 1px solid rgba(127,127,127,0.35); color: inherit; }