:root{
  --ink:#081a31;--deep:#0d2a4d;--accent:#2f6fed;--accent-hi:#4a84f7;--sky:#b9d3ff;--warn:#f3c969;
  --paper:#f3f6fa;--mist:#a8b7cb;--line:rgba(255,255,255,.14);--danger:#ff9b8f;
  --ease:cubic-bezier(.2,.8,.2,1);
  --display:'Instrument Serif',Georgia,serif;
  --body:'Onest',system-ui,-apple-system,'Segoe UI',sans-serif;
}
*{box-sizing:border-box;margin:0}
html,body{height:100%}
body.auth{min-height:100vh;min-height:100dvh;background:var(--ink);color:var(--paper);font:400 15px/1.5 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}

/* Kampus fon: rasmning chap tomoni o'zi to'q ko'k, karta shu yerga tushadi */
.auth-bg{position:fixed;inset:0;z-index:0;overflow:hidden;background:var(--deep)}
.auth-bg img{width:100%;height:100%;object-fit:cover;object-position:78% 50%;animation:settle 1.6s var(--ease) both}
.auth-bg::after{content:"";position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(8,26,49,.92) 0%,rgba(8,26,49,.72) 34%,rgba(8,26,49,0) 62%),
  linear-gradient(0deg,rgba(8,26,49,.55),rgba(8,26,49,0) 30%)}

/* Chap ustun rasmning to'q qismiga to'g'ri keladi; brend, forma va pastki qator
   shu ustun markazida bitta chiziqda turadi, keng ekranda ham chetga yopishmaydi. */
.auth-shell{--col:clamp(380px,30vw,500px);position:relative;z-index:1;min-height:100vh;min-height:100dvh;display:grid;
  grid-template-columns:minmax(0,46%) 1fr;grid-template-rows:auto 1fr auto;padding:clamp(24px,3.2vw,48px) clamp(16px,4vw,64px);gap:24px}
.auth-shell>*{grid-column:1;justify-self:center;width:100%;max-width:var(--col)}

.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand img{width:40px;height:40px;object-fit:contain}
.brand strong{display:block;font-weight:600;font-size:15px;letter-spacing:.02em}
.brand small{display:block;color:var(--mist);font-size:12px;line-height:1.3}

.auth-main{align-self:center}
.auth-title{font:400 clamp(40px,3.6vw,68px)/1.02 var(--display);letter-spacing:-.01em;margin-bottom:12px}
.auth-title em{color:var(--sky)}
.auth-lead{color:var(--mist);max-width:34ch;margin-bottom:28px}

.card{background:rgba(13,42,77,.55);border:1px solid var(--line);border-radius:20px;padding:28px;
  -webkit-backdrop-filter:blur(18px) saturate(140%);backdrop-filter:blur(18px) saturate(140%);
  box-shadow:0 30px 60px -20px rgba(0,0,0,.5);animation:rise .7s .1s var(--ease) both}
.card h2{font-size:18px;font-weight:600;margin-bottom:20px}

.alert{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;margin-bottom:18px;border-radius:12px;
  background:rgba(255,120,105,.12);border:1px solid rgba(255,155,143,.35);color:#ffd9d4;font-size:14px}
.alert svg{flex:none;margin-top:2px}

.field{display:block;margin-bottom:16px}
.field-label{display:block;font-size:13px;font-weight:500;margin-bottom:7px;color:#dbe4ef}
.control{position:relative;display:block}
.control input{width:100%;height:50px;padding:0 16px;border-radius:12px;border:1px solid var(--line);
  background:rgba(8,26,49,.55);color:var(--paper);font:500 15px var(--body);transition:border-color .2s,box-shadow .2s,background .2s}
.control input::placeholder{color:#6f829b}
.control input:hover{border-color:rgba(255,255,255,.26)}
.control input:focus{outline:none;border-color:var(--accent-hi);box-shadow:0 0 0 4px rgba(74,132,247,.28);background:rgba(8,26,49,.75)}
.control input[aria-invalid="true"]{border-color:rgba(255,155,143,.6)}
.control input:-webkit-autofill{-webkit-text-fill-color:var(--paper);-webkit-box-shadow:0 0 0 40px #0b2444 inset;caret-color:var(--paper)}
.control.has-toggle input{padding-right:52px}
.toggle{position:absolute;right:6px;top:6px;width:38px;height:38px;display:grid;place-items:center;border:0;border-radius:9px;background:transparent;color:var(--mist);cursor:pointer}
.toggle:hover{color:var(--paper);background:rgba(255,255,255,.07)}
.toggle:focus-visible{outline:2px solid var(--accent-hi);outline-offset:1px}
.toggle .eye-off,.toggle[aria-pressed="true"] .eye{display:none}
.toggle[aria-pressed="true"] .eye-off{display:block}
.caps{display:none;margin-top:7px;font-size:12.5px;color:var(--warn)}
.caps.on{display:block}

.submit{position:relative;width:100%;height:52px;margin-top:6px;border:0;border-radius:12px;cursor:pointer;
  background:var(--accent);color:#fff;font:600 15px var(--body);letter-spacing:.01em;box-shadow:0 10px 24px -10px rgba(47,111,237,.7);
  display:flex;align-items:center;justify-content:center;gap:10px;transition:background .2s,transform .15s}
.submit:hover{background:var(--accent-hi)}
.submit:active{transform:translateY(1px)}
.submit:focus-visible{outline:3px solid var(--paper);outline-offset:3px}
.submit .spin{display:none;width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;animation:spin .7s linear infinite}
.submit[aria-busy="true"]{pointer-events:none;opacity:.85}
.submit[aria-busy="true"] .spin{display:block}
.submit[aria-busy="true"] .arrow{display:none}

.help{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--mist)}
.help strong{color:#dbe4ef;font-weight:500}

.auth-foot{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;color:var(--mist);font-size:12.5px}

@keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes settle{from{transform:scale(1.06)}to{transform:scale(1)}}
@keyframes spin{to{transform:rotate(360deg)}}

@media (min-width:1600px){
  body.auth{font-size:16px}
  .card{padding:36px;border-radius:24px}
  .card h2{font-size:20px;margin-bottom:24px}
  .control input{height:56px;font-size:16px}
  .toggle{top:9px}
  .submit{height:58px;font-size:16px}
  .brand img{width:46px;height:46px}
  .brand strong{font-size:17px}
  .brand small{font-size:13px}
}
@media (max-width:860px){
  .auth-shell{grid-template-columns:1fr;--col:440px}
  .auth-bg{position:absolute;height:340px;bottom:auto}
  .auth-bg img{object-position:72% 55%}
  .auth-bg::after{background:linear-gradient(180deg,rgba(8,26,49,.45) 0%,rgba(8,26,49,.15) 40%,var(--ink) 100%)}
  .auth-shell{grid-template-rows:auto auto auto;gap:18px}
  .auth-main{justify-self:center;align-self:start;margin-top:120px}
  .auth-title{font-size:36px}
  .auth-lead{font-size:14px;margin-bottom:20px}
  .card{padding:22px;background:rgba(13,42,77,.8)}
  .auth-foot{justify-content:center;text-align:center}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}}