:root{
  --kg-navy:#101827;
  --kg-navy-2:#111c31;
  --kg-navy-3:#25182d;
  --kg-orange:#ff9d00;
  --kg-orange-dark:#b94700;
  --kg-orange-soft:#fff5d9;
  --kg-orange-line:#f5cf69;
  --kg-blue:#2563eb;
  --kg-teal:#0ea5a6;
  --kg-green:#16a34a;
  --kg-red:#dc2626;
  --kg-ink:#111827;
  --kg-text:#334155;
  --kg-muted:#64748b;
  --kg-line:#d7e0ec;
  --kg-line-soft:#e9eef5;
  --kg-surface:#ffffff;
  --kg-page:#f4f7fb;
}

*{box-sizing:border-box}
html{min-height:100%;background:var(--kg-page)}
body.kg-body{
  margin:0;
  min-height:100vh;
  font-family:'Nunito','Segoe UI',Arial,sans-serif;
  color:var(--kg-ink);
  background:
    radial-gradient(circle at 13% 12%,rgba(148,163,184,.11),transparent 28%),
    radial-gradient(circle at 88% 84%,rgba(37,99,235,.06),transparent 26%),
    var(--kg-page);
  overflow-x:hidden;
}
button,input,select,textarea{font:inherit}
a{transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease}

/* Arka plan dekoru: eski sayfalarda kullanılır, yeni giriş/kayıtta çok hafif görünür. */
.kg-floating{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:0;opacity:.12}
.kg-float{position:absolute;bottom:-110px;color:#94a3b8;animation:kgFloat linear infinite}
@keyframes kgFloat{0%{transform:translateY(0) rotate(0);opacity:0}12%,88%{opacity:.35}100%{transform:translateY(-125vh) rotate(360deg);opacity:0}}

.kg-shell{
  position:relative;
  z-index:2;
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:64px 22px;
}
.kg-card{
  width:min(1060px,100%);
  overflow:hidden;
  background:var(--kg-surface);
  border:1px solid #d9e2ee;
  border-radius:31px;
  box-shadow:0 28px 70px rgba(15,23,42,.11),0 4px 12px rgba(15,23,42,.04);
}
.kg-card--register{width:min(1210px,100%)}
.kg-grid{display:grid;grid-template-columns:minmax(350px,42%) minmax(0,58%);min-height:742px}
.kg-card--register .kg-grid{grid-template-columns:minmax(355px,38%) minmax(0,62%);min-height:870px}

/* Sol tanıtım alanı */
.kg-side{
  position:relative;
  overflow:hidden;
  padding:54px 56px 48px;
  color:#fff;
  background:linear-gradient(155deg,var(--kg-navy) 0%,var(--kg-navy-2) 64%,var(--kg-navy-3) 100%);
}
.kg-side::before{
  content:"";
  position:absolute;
  width:360px;height:360px;
  top:-215px;right:-185px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,157,0,.28) 0%,rgba(255,157,0,.08) 45%,transparent 70%);
}
.kg-side::after{
  content:"";
  position:absolute;
  width:310px;height:310px;
  left:-205px;bottom:-210px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(168,85,247,.18) 0%,transparent 70%);
}
.kg-side-inner{position:relative;z-index:1;display:flex;flex-direction:column;height:100%;min-height:100%}
.kg-brand-chip{
  display:inline-flex;
  align-items:center;
  gap:12px;
  width:max-content;
  max-width:100%;
  padding:10px 15px;
  border:1px solid rgba(255,255,255,.18);
  border-radius:18px;
  background:rgba(255,255,255,.12);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(8px);
}
.kg-brand-mark{font-size:2rem;line-height:1;filter:drop-shadow(0 4px 5px rgba(0,0,0,.25))}
.kg-brand-name{font-size:1.08rem;font-weight:900;letter-spacing:.01em;white-space:nowrap}
/* Eski kimlik sayfalarıyla geriye uyumluluk */
.kg-logo{width:74px;height:74px;border-radius:22px;display:grid;place-items:center;background:rgba(255,157,0,.18);border:1px solid rgba(255,157,0,.35);color:#fff;font-size:2rem;margin-bottom:18px}
.kg-brand{font-size:.8rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:#cbd5e1}

.kg-side-title{
  margin:42px 0 16px;
  font-family:'Fredoka','Nunito',sans-serif;
  font-size:clamp(2.2rem,3.2vw,3.2rem);
  line-height:1.04;
  letter-spacing:-.035em;
  font-weight:700;
  color:#fff;
}
.kg-side-title .kg-accent{color:var(--kg-orange)}
.kg-side-copy{margin:0 0 28px;color:#91a4c2;font-size:1.01rem;line-height:1.65;max-width:340px}
.kg-side h1:not(.kg-side-title){font-family:'Fredoka','Nunito',sans-serif;font-size:clamp(2rem,3vw,2.8rem);line-height:1.08;margin:24px 0 16px;font-weight:700}
.kg-side p:not(.kg-side-copy){font-size:1rem;line-height:1.65;color:#9fb0ca;margin:0 0 28px}

.kg-features{display:grid;gap:14px;margin-top:2px}
.kg-feature{
  display:flex;
  gap:14px;
  align-items:center;
  min-height:78px;
  padding:16px 18px;
  border:1px solid rgba(148,163,184,.18);
  border-radius:18px;
  background:rgba(255,255,255,.045);
}
.kg-feature i{
  width:42px;height:42px;
  border-radius:13px;
  display:grid;
  place-items:center;
  flex:0 0 auto;
  font-size:1.15rem;
  color:var(--kg-orange);
  background:rgba(255,157,0,.16);
}
.kg-feature:nth-child(2) i{color:#2dd4bf;background:rgba(20,184,166,.16)}
.kg-feature:nth-child(3) i{color:#c084fc;background:rgba(168,85,247,.16)}
.kg-feature strong{display:block;color:#fff;font-size:.96rem;font-weight:900;line-height:1.3}
.kg-feature small{display:block;color:#91a4c2;font-size:.79rem;line-height:1.4;margin-top:3px}
.kg-side-note{margin-top:18px;padding:12px 14px;border-radius:14px;background:rgba(255,255,255,.04);color:#93a4bd;font-size:.78rem;line-height:1.5;border:1px dashed rgba(148,163,184,.18)}
.kg-side-footer{
  margin-top:auto;
  padding-top:24px;
  color:#9ca3af;
  font-size:.8rem;
}
.kg-side-footer-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  padding-top:19px;
  border-top:1px solid rgba(148,163,184,.17);
}
.kg-side-footer-row a{display:inline-flex;align-items:center;gap:6px;color:#94a3b8;text-decoration:none;font-weight:700}
.kg-side-footer-row a:hover{color:#fff}

/* Sağ form alanı */
.kg-main{
  position:relative;
  padding:52px 58px;
  background:#fff;
}
.kg-main--login{display:flex;flex-direction:column;justify-content:center;padding-top:56px;padding-bottom:56px}
.kg-main--register{padding:42px 48px 46px}
.kg-toplink{position:absolute;right:34px;top:25px;display:inline-flex;align-items:center;gap:7px;color:#64748b;text-decoration:none;font-weight:800;font-size:.82rem}
.kg-toplink:hover{color:var(--kg-orange)}
.kg-form-head{margin-bottom:27px}
.kg-eyebrow,.kg-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  width:max-content;
  max-width:100%;
  padding:6px 13px;
  border:1px solid var(--kg-orange-line);
  border-radius:999px;
  background:var(--kg-orange-soft);
  color:#b45309;
  font-size:.78rem;
  font-weight:900;
  line-height:1.25;
}
.kg-form-title,.kg-title h2{
  margin:17px 0 6px;
  font-family:'Fredoka','Nunito',sans-serif;
  font-size:clamp(2rem,3.2vw,2.65rem);
  line-height:1.08;
  letter-spacing:-.035em;
  font-weight:700;
  color:#111827;
}
.kg-form-copy,.kg-title p{margin:0;color:var(--kg-muted);font-size:.98rem;line-height:1.55}
.kg-title-row{display:flex;flex-direction:column;align-items:flex-start;gap:0;margin-bottom:24px}
.kg-title-row .kg-badge{order:-1}

.kg-alert{display:flex;gap:11px;align-items:flex-start;padding:13px 15px;border-radius:14px;margin:0 0 18px;font-weight:700;font-size:.88rem;line-height:1.45;border:1px solid transparent}
.kg-alert i{font-size:1.08rem;margin-top:1px;flex:0 0 auto}
.kg-alert-danger{background:#fff1f2;color:#9f1239;border-color:#fecdd3}
.kg-alert-success{background:#ecfdf5;color:#166534;border-color:#bbf7d0}
.kg-alert-warning{background:#fffbeb;color:#92400e;border-color:#fde68a}
.kg-alert-info{background:#eff6ff;color:#1e40af;border-color:#bfdbfe}

.kg-account-switch{display:grid;grid-template-columns:1fr 1fr;gap:9px;padding:6px;background:#f3f6fa;border:1px solid #e2e8f0;border-radius:16px;margin-bottom:14px}
.kg-account-option{position:relative}.kg-account-option input{position:absolute;opacity:0;pointer-events:none}
.kg-account-option label{display:flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:11px 12px;border-radius:12px;cursor:pointer;font-weight:900;color:#64748b;transition:.18s}
.kg-account-option label i{font-size:1.08rem}
.kg-account-option input:checked+label{background:#fff;color:#b45309;box-shadow:0 4px 13px rgba(15,23,42,.08);border:1px solid #f7d783}
.kg-account-option input:focus-visible+label{outline:3px solid rgba(255,157,0,.25)}

.kg-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px 16px}.kg-col-2{grid-column:span 2}
.kg-field label{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:0 0 7px;color:#111827;font-size:.86rem;font-weight:900}
.kg-field label small{font-weight:700;color:#94a3b8}
.kg-input-wrap{position:relative;display:flex;align-items:stretch}
.kg-input-icon{
  position:absolute;
  z-index:2;
  left:0;top:0;bottom:0;
  width:58px;
  display:grid;
  place-items:center;
  color:#64748b;
  font-size:1.08rem;
  border-right:1px solid #cbd5e1;
  pointer-events:none;
}
.kg-control{
  width:100%;
  min-height:55px;
  border:2px solid #cbd7e5;
  border-radius:14px;
  background:#fff;
  color:#1f2937;
  font:inherit;
  font-weight:700;
  padding:12px 50px 12px 76px;
  outline:none;
  transition:border-color .18s,box-shadow .18s,background .18s;
  box-shadow:0 3px 7px rgba(15,23,42,.035);
}
.kg-control:focus{background:#fff;border-color:#f0a000;box-shadow:0 0 0 4px rgba(255,157,0,.13)}
.kg-input-wrap:focus-within .kg-input-icon{color:#c25b00;border-color:#f0a000}
.kg-control::placeholder{color:#64748b;font-weight:600}
.kg-control[readonly]{background:#f8fafc;color:#64748b}
.kg-select{padding-right:46px;appearance:none;background-image:linear-gradient(45deg,transparent 50%,#64748b 50%),linear-gradient(135deg,#64748b 50%,transparent 50%);background-position:calc(100% - 20px) 23px,calc(100% - 14px) 23px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.kg-toggle{
  position:absolute;
  z-index:3;
  right:0;top:0;bottom:0;
  width:56px;
  border:0;
  border-left:1px solid #cbd5e1;
  border-radius:0 14px 14px 0;
  background:#fff;
  color:#64748b;
  cursor:pointer;
  font-size:1rem;
  font-weight:900;
}
.kg-toggle:hover{background:#fff8e8;color:#b45309}.kg-toggle:focus-visible{outline:3px solid rgba(255,157,0,.22);outline-offset:-3px}
.kg-help{display:block;margin:5px 2px 0;color:#64748b;font-size:.74rem;line-height:1.4}.kg-help strong{color:#334155}
.kg-password-meter{height:6px;border-radius:999px;background:#e2e8f0;overflow:hidden;margin:8px 2px 0}.kg-password-meter span{display:block;width:0;height:100%;background:#ef4444;transition:.22s}.kg-password-text{font-size:.72rem;color:#64748b;margin:4px 2px 0}

.kg-check{display:flex;gap:10px;align-items:flex-start;padding:12px 13px;border-radius:13px;background:#f8fafc;border:1px solid #e2e8f0;font-size:.78rem;line-height:1.45;color:#475569}
.kg-check input{width:18px;height:18px;margin-top:1px;accent-color:var(--kg-orange);flex:0 0 auto}
.kg-submit{
  width:100%;
  min-height:58px;
  border:0;
  border-radius:999px;
  padding:14px 22px;
  background:linear-gradient(180deg,#ffa70b 0%,#ff9300 100%);
  color:#111827;
  font:inherit;
  font-size:1.02rem;
  font-weight:1000;
  box-shadow:0 6px 0 var(--kg-orange-dark),0 13px 22px rgba(185,71,0,.16);
  cursor:pointer;
  transition:transform .14s,box-shadow .14s,filter .14s;
  display:flex;
  justify-content:center;
  align-items:center;
  gap:10px;
  text-decoration:none;
}
.kg-submit:hover{transform:translateY(-2px);filter:saturate(1.06);box-shadow:0 8px 0 var(--kg-orange-dark),0 17px 25px rgba(185,71,0,.19);color:#111827}
.kg-submit:active{transform:translateY(5px);box-shadow:0 1px 0 var(--kg-orange-dark)}
.kg-submit:disabled{opacity:.58;cursor:not-allowed;transform:none;box-shadow:0 4px 0 #9a5d22}
.kg-submit-blue{background:linear-gradient(180deg,#38bdf8,#2563eb);color:#fff;box-shadow:0 6px 0 #1d4ed8,0 13px 22px rgba(37,99,235,.18)}
.kg-submit-blue:hover{color:#fff;box-shadow:0 8px 0 #1d4ed8,0 17px 25px rgba(37,99,235,.21)}

.kg-link-row{display:flex;justify-content:space-between;align-items:center;gap:14px;margin:-1px 1px 4px;font-size:.82rem}
.kg-link-row a,.kg-mini-link{display:inline-flex;align-items:center;gap:5px;color:#4f46e5;font-weight:900;text-decoration:none}
.kg-link-row a:hover,.kg-mini-link:hover{color:#b45309}
.kg-links{text-align:center;margin-top:30px;padding-top:21px;border-top:1px solid var(--kg-line-soft);color:#64748b;font-size:.86rem}
.kg-links a{color:#4f46e5;font-weight:900;text-decoration:none}.kg-links a:hover{color:#b45309}

.kg-status-card{text-align:center;padding:34px 24px;border:1px solid #e2e8f0;border-radius:22px;background:linear-gradient(180deg,#fff,#f8fafc)}
.kg-status-icon{width:74px;height:74px;border-radius:22px;margin:0 auto 17px;display:grid;place-items:center;font-size:2rem;background:#dcfce7;color:#15803d;box-shadow:0 5px 0 #bbf7d0}
.kg-status-card h3{font-family:'Fredoka','Nunito',sans-serif;font-size:1.8rem;font-weight:700;color:#111827}.kg-status-card p{color:#64748b;line-height:1.62}
.kg-honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important;opacity:0!important}
.kg-hidden{display:none!important}.kg-required{color:#e11d48}

@media(max-width:940px){
  .kg-shell{padding:28px 16px}
  .kg-grid,.kg-card--register .kg-grid{grid-template-columns:1fr;min-height:0}
  .kg-side{padding:34px 38px}
  .kg-side-title{margin-top:28px;font-size:2.35rem}
  .kg-side-copy{max-width:620px}
  .kg-features{grid-template-columns:1fr 1fr}
  .kg-feature:nth-child(3){grid-column:span 2}
  .kg-side-footer{margin-top:26px}
  .kg-main,.kg-main--login,.kg-main--register{padding:48px 44px}
  .kg-toplink{position:static;margin-bottom:24px}
}
@media(max-width:650px){
  .kg-shell{padding:12px 8px;display:block}
  .kg-card{border-radius:23px}
  .kg-side{padding:28px 23px}
  .kg-brand-chip{padding:8px 12px;border-radius:15px}.kg-brand-mark{font-size:1.65rem}.kg-brand-name{font-size:.98rem}
  .kg-side-title{font-size:2rem;margin-top:25px}.kg-side-copy{font-size:.9rem;margin-bottom:21px}
  .kg-features{grid-template-columns:1fr}.kg-feature:nth-child(3){grid-column:auto}.kg-feature{min-height:70px;padding:14px}
  .kg-side-footer-row{align-items:flex-start;flex-direction:column;gap:8px}
  .kg-main,.kg-main--login,.kg-main--register{padding:34px 20px 38px}
  .kg-form-title,.kg-title h2{font-size:2rem}
  .kg-form-grid{grid-template-columns:1fr}.kg-col-2{grid-column:span 1}
  .kg-account-switch{grid-template-columns:1fr}
  .kg-link-row{align-items:flex-start;flex-direction:column;gap:8px}
  .kg-control{font-size:16px}
  .kg-alert{font-size:.82rem}
}
@media(prefers-reduced-motion:reduce){.kg-float{animation:none}.kg-submit,.kg-account-option label,.kg-control,a{transition:none}}


/* V4.5 öğretmen kurum seçimi ve mobil uygulama hissi */
.kg-institution-box{border:1px solid #dbeafe!important;background:linear-gradient(180deg,#f8fbff,#fff)!important;border-radius:18px!important;padding:18px!important}
.kg-institution-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:15px}
.kg-institution-head strong,.kg-institution-head small{display:block}.kg-institution-head strong{font-size:15px;color:#0f172a}.kg-institution-head small{font-size:12px;color:#64748b;margin-top:4px;line-height:1.5}.kg-institution-head>i{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:#eff6ff;color:#2563eb;font-size:20px;flex:0 0 42px}
.kg-institution-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.kg-institution-grid label{display:block;font-weight:750;font-size:12px;margin-bottom:6px}.kg-inst-wide{grid-column:1/-1}
@media(max-width:640px){.kg-institution-grid{grid-template-columns:1fr}.kg-inst-wide{grid-column:auto}.kg-card--register{border-radius:0!important}.kg-body{background:#fff}.kg-shell{padding:0}.kg-control{font-size:16px!important;min-height:48px}.kg-submit{min-height:50px;border-radius:14px}}
@media(display-mode:standalone){.kg-body{padding-top:env(safe-area-inset-top);padding-bottom:env(safe-area-inset-bottom)}}