:root{
  --green:#00853f;
  --green-dark:#005f2e;
  --green-deep:#063d27;
  --gold:#c8a008;
  --gold-light:#f2dc78;
  --blue:#0b2d5c;
  --ink:#172019;
  --muted:#66736b;
  --soft:#f3f6f4;
  --border:#dce6df;
  --shadow:0 24px 70px rgba(7,53,32,.14);
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  font-family:Inter,sans-serif;
  color:var(--ink);
  background:#fff;
  overflow:hidden;
}
a{text-decoration:none}
h1,h2,h3,strong{font-family:Poppins,sans-serif}
.skip-link{position:fixed;top:-100px;left:1rem;z-index:1000;background:#fff;color:#000;padding:.75rem 1rem;border-radius:.5rem;box-shadow:var(--shadow)}
.skip-link:focus{top:1rem}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px}

.login-shell{
  height:100vh;
  height:100dvh;
  display:grid;
  grid-template-columns:minmax(420px,1.05fr) minmax(480px,.95fr);
  overflow:hidden;
}

.brand-panel{
  position:relative;
  height:100%;
  background:url("../img/conf2.jpeg") center/cover no-repeat;
  color:#fff;
  overflow:hidden;
}
.brand-overlay{position:absolute;inset:0;background:linear-gradient(145deg,rgba(4,55,32,.96),rgba(0,89,43,.84) 54%,rgba(11,45,92,.68))}
.brand-pattern{position:absolute;inset:0;opacity:.12;background-image:radial-gradient(circle at 20% 20%,#fff 0 2px,transparent 3px),radial-gradient(circle at 78% 63%,#fff 0 1.5px,transparent 2.5px);background-size:100px 100px,140px 140px}
.brand-content{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  padding:clamp(1.2rem,2.2vh,2rem) clamp(1.6rem,4vw,3.5rem);
}
.brand-lockup{display:flex;align-items:center;gap:.85rem;color:#fff;width:max-content}
.brand-lockup:hover{color:#fff}
.brand-lockup img{width:56px;height:80px;object-fit:contain;filter:drop-shadow(0 8px 22px rgba(0,0,0,.18))}
.brand-lockup strong,.brand-lockup span{display:block}
.brand-lockup strong{font-size:.95rem}
.brand-lockup span{font-size:.72rem;color:rgba(255,255,255,.75)}
.brand-copy{margin:auto 0;max-width:680px;padding:clamp(.5rem,2vh,1.5rem) 0}
.eyebrow{display:inline-block;text-transform:uppercase;font-size:.68rem;letter-spacing:.15em;font-weight:800;color:var(--gold-light)}
.brand-copy h1{
  max-width:620px;
  font-size:clamp(1.85rem,3.6vw,3.2rem);
  line-height:1.08;
  letter-spacing:-.04em;
  margin:.55rem 0 .8rem;
}
.brand-copy>p{max-width:620px;font-size:.95rem;line-height:1.5;color:rgba(255,255,255,.82);margin:0}
.conference-card{
  max-width:580px;
  margin-top:clamp(.9rem,2vh,1.5rem);
  padding:1rem 1.15rem;
  border:1px solid rgba(255,255,255,.2);
  border-radius:1rem;
  background:rgba(255,255,255,.1);
  backdrop-filter:blur(15px);
  box-shadow:0 15px 45px rgba(0,0,0,.15);
}
.conference-card>span{text-transform:uppercase;letter-spacing:.13em;font-weight:800;font-size:.64rem;color:var(--gold-light)}
.conference-card h2{font-size:1.02rem;margin:.4rem 0 .7rem;line-height:1.35}
.conference-meta{display:flex;flex-wrap:wrap;gap:.55rem 1.1rem;color:rgba(255,255,255,.76);font-size:.78rem;font-weight:600}
.conference-meta span{display:flex;gap:.45rem;align-items:center}
.brand-footer{display:flex;flex-wrap:wrap;gap:.55rem 1.4rem;color:rgba(255,255,255,.75);font-size:.72rem;font-weight:600}
.brand-footer span{display:flex;align-items:center;gap:.45rem}
.brand-footer i{color:var(--gold-light)}

.form-panel{
  height:100%;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:radial-gradient(circle at 90% 10%,rgba(0,133,63,.07),transparent 26%),radial-gradient(circle at 10% 90%,rgba(200,160,8,.07),transparent 28%),#fff;
}
.top-actions{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:.85rem 1.5rem;
  border-bottom:1px solid #edf1ee;
  flex-shrink:0;
}
.top-actions a{color:var(--muted);font-size:.8rem;font-weight:700}
.top-actions a:hover{color:var(--green)}
.top-actions .help-link{color:#128c7e}
.top-actions .help-link:hover{color:#075e54}
.top-actions i{margin-right:.35rem}

.form-wrap{
  width:min(100%,500px);
  margin:auto;
  padding:clamp(.75rem,2vh,1.5rem) 1.5rem;
  overflow:auto;
}
.mobile-logo{display:none;align-items:center;gap:.75rem;margin-bottom:1.25rem}
.mobile-logo img{width:46px;height:66px;object-fit:contain}
.mobile-logo strong,.mobile-logo span{display:block}
.mobile-logo strong{font-size:.85rem;color:var(--green-deep)}
.mobile-logo span{font-size:.68rem;color:var(--muted)}

.form-heading{margin-bottom:clamp(.8rem,1.8vh,1.35rem)}
.form-heading .eyebrow{color:var(--green)}
.form-heading h2{font-size:clamp(1.55rem,2.6vw,2.1rem);letter-spacing:-.04em;margin:.3rem 0 .4rem}
.form-heading p{color:var(--muted);margin:0;font-size:.88rem}

.role-switcher{display:grid;grid-template-columns:repeat(3,1fr);gap:.5rem;margin-bottom:clamp(.8rem,1.8vh,1.35rem)}
.role-btn{border:1px solid var(--border);border-radius:.85rem;background:#fff;padding:.65rem .4rem;color:var(--muted);font-weight:700;font-size:.72rem;transition:.25s ease}
.role-btn i{display:block;font-size:1rem;margin-bottom:.25rem}
.role-btn:hover{border-color:#a8cbb7;color:var(--green);transform:translateY(-1px)}
.role-btn.active{color:var(--green-deep);border-color:var(--green);background:#ebf6ef;box-shadow:0 8px 20px rgba(0,133,63,.10)}

.form-label{font-size:.78rem;font-weight:800;color:#2d3b32;margin-bottom:.35rem}
.login-form .mb-3{margin-bottom:.85rem!important}
.login-form .mb-4{margin-bottom:1rem!important}
.login-form .form-control,
.login-form .form-select{
  border:1px solid var(--border);
  border-radius:.85rem;
  padding:.75rem .9rem;
  font-size:.92rem;
  box-shadow:none;
}
.login-form .form-control:focus,
.login-form .form-select:focus{
  border-color:var(--green);
  box-shadow:0 0 0 .24rem rgba(0,133,63,.10);
}
.custom-input{border:1px solid var(--border);border-radius:.85rem;overflow:hidden;background:#fff;transition:.25s ease}
.custom-input:focus-within{border-color:var(--green);box-shadow:0 0 0 .24rem rgba(0,133,63,.10)}
.custom-input .input-group-text{border:0;background:#fff;color:var(--green);padding-left:.9rem}
.custom-input .form-control{border:0;padding:.75rem .65rem;box-shadow:none;font-size:.92rem}
.custom-input .form-control::placeholder{color:#a3ada7}
.password-toggle{border:0!important;border-radius:0!important;color:var(--muted)!important;padding:0 .9rem!important}
.password-toggle:hover{background:#f4f7f5!important;color:var(--green)!important}
.forgot-link{font-size:.74rem;color:var(--green);font-weight:700}
.form-check-label{font-size:.78rem;color:var(--muted)}
.form-check-input:checked{background-color:var(--green);border-color:var(--green)}
.secure-note{font-size:.68rem;color:#738078}
.secure-note i{color:var(--green);margin-right:.3rem}

.btn-login,.btn-register{min-height:46px;border-radius:.85rem;font-weight:800;display:flex;align-items:center;justify-content:center;gap:.6rem;font-size:.92rem}
.btn-login{color:#fff;border:0;background:linear-gradient(135deg,var(--green),var(--green-dark));box-shadow:0 12px 26px rgba(0,133,63,.2)}
.btn-login:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px rgba(0,133,63,.28)}
.btn-login:disabled{opacity:.75}
.btn-register{color:var(--green);background:#fff;border:1px solid var(--green)}
.btn-register:hover{color:#fff;background:var(--green)}
.divider{position:relative;text-align:center;margin:.95rem 0}
.divider:before{content:"";position:absolute;left:0;right:0;top:50%;height:1px;background:var(--border)}
.divider span{position:relative;background:#fff;padding:0 .8rem;font-size:.68rem;color:#8a968f}
.terms-note{text-align:center;font-size:.68rem;color:#879188;margin:.85rem 0 0}
.terms-note a{color:var(--green);font-weight:700}

.support-card{
  margin-top:clamp(.9rem,2vh,1.4rem);
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:.8rem;
  align-items:center;
  padding:.8rem;
  border:1px solid var(--border);
  border-radius:.9rem;
  background:var(--soft);
}
.support-icon{width:38px;height:38px;border-radius:.75rem;display:grid;place-items:center;color:var(--green);background:#dff1e6}
.support-card strong{font-size:.78rem}
.support-card p{margin:.1rem 0 0;color:var(--muted);font-size:.68rem;line-height:1.4}
.support-card>a{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:#fff;background:#25d366}
.support-card>a:hover{background:#1ebe57;color:#fff}

.form-footer{
  display:flex;
  justify-content:space-between;
  gap:1rem;
  padding:.75rem 1.5rem;
  border-top:1px solid #edf1ee;
  color:#8a948e;
  font-size:.66rem;
  flex-shrink:0;
}
.form-footer p{margin:0}
.form-footer div{display:flex;gap:1rem}
.form-footer a{color:#78837c}
.form-footer a:hover{color:var(--green)}

@media (max-width:1100px){
  .login-shell{grid-template-columns:1fr 1fr}
  .brand-copy h1{font-size:clamp(1.7rem,3.2vw,2.6rem)}
}

@media (max-width:900px){
  body{overflow:auto}
  .login-shell{display:block;height:auto;min-height:100vh;min-height:100dvh;overflow:visible}
  .brand-panel{display:none}
  .form-panel{min-height:100vh;min-height:100dvh;height:auto;overflow:visible}
  .mobile-logo{display:flex}
  .form-wrap{padding:1.25rem 1.2rem}
  .top-actions .help-link{display:inline-flex}
}

@media (max-width:575px){
  .top-actions{padding:.85rem 1rem}
  .form-wrap{padding:1.1rem 1rem}
  .role-switcher{gap:.4rem}
  .role-btn{font-size:.65rem;padding:.65rem .25rem}
  .secure-note{display:none}
  .form-footer{flex-direction:column;align-items:center;text-align:center;padding:.85rem 1rem}
}

@media (max-height:760px) and (min-width:901px){
  .brand-lockup img{width:48px;height:68px}
  .brand-copy h1{font-size:clamp(1.55rem,2.8vw,2.35rem)}
  .brand-copy>p{font-size:.88rem}
  .conference-card{padding:.85rem 1rem}
  .conference-card h2{font-size:.95rem}
  .form-heading h2{font-size:1.55rem}
  .btn-login,.btn-register{min-height:42px}
  .support-card{display:none}
}

/* Tall auth forms (register) — narrower brand panel, wider form */
body.auth-scroll{
  overflow:auto;
}
body.auth-scroll .login-shell{
  height:auto;
  min-height:100vh;
  min-height:100dvh;
  overflow:visible;
  grid-template-columns:minmax(180px,.28fr) minmax(720px,1.72fr);
}
body.auth-scroll .brand-panel{
  position:sticky;
  top:0;
  height:100vh;
  height:100dvh;
}
body.auth-scroll .brand-content{
  padding:clamp(1rem,2vh,1.5rem) clamp(1rem,2.2vw,1.6rem);
}

/* Register left panel: centered logo + title stack */
body.auth-identity .brand-content{
  justify-content:center;
  align-items:center;
  text-align:center;
  padding:2rem 1.25rem;
}
body.auth-identity .brand-lockup{
  flex-direction:column;
  align-items:center;
  gap:1rem;
  width:100%;
  max-width:220px;
  margin:0 auto;
}
body.auth-identity .brand-lockup img{
  width:96px;
  height:auto;
  max-height:140px;
  object-fit:contain;
}
body.auth-identity .brand-lockup div{
  text-align:center;
}
body.auth-identity .brand-lockup strong{
  font-size:1.35rem;
  line-height:1.2;
  letter-spacing:.02em;
}
body.auth-identity .brand-lockup span{
  margin-top:.45rem;
  font-size:.82rem;
  color:rgba(255,255,255,.8);
  font-weight:600;
  line-height:1.35;
}
body.auth-scroll .form-panel{
  height:auto;
  min-height:100vh;
  min-height:100dvh;
  overflow:visible;
}
body.auth-scroll .form-wrap{
  width:min(100%,1080px);
  margin:0 auto;
  padding:1.25rem clamp(1.25rem,3vw,2.5rem) 2rem;
}
body.auth-scroll .support-card{display:grid}
body.auth-scroll .custom-input{
  flex-wrap:nowrap;
}
body.auth-scroll .custom-input .form-control{
  min-width:0;
  flex:1 1 auto;
}
body.auth-scroll .custom-input .password-toggle{
  flex:0 0 auto;
}
.form-wrap-wide{width:min(100%,1080px)}
.auth-alert-box{
  border:1px solid var(--border);
  border-radius:.85rem;
  background:var(--soft);
  padding:.85rem 1rem;
}
.auth-alert-box .password-requirements{margin:0}
.auth-secondary-link{
  display:block;
  text-align:center;
  margin-top:.95rem;
  font-size:.8rem;
  font-weight:700;
  color:var(--green);
}
.auth-secondary-link:hover{color:var(--green-dark)}

@media (max-width:900px){
  body.auth-scroll .brand-panel{display:none}
  body.auth-identity .mobile-logo{
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
    gap:.75rem;
  }
  body.auth-identity .mobile-logo img{
    width:72px;
    height:auto;
    max-height:104px;
  }
  body.auth-identity .mobile-logo strong{font-size:.95rem;line-height:1.3}
  body.auth-identity .mobile-logo span{font-size:.75rem}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}