/* ===== VortexVisual — auth (login / register) ===== */
:root{
  --bg:#0a0716;
  --text:#f2eefb;
  --muted:#b3aac9;
  --faint:rgba(242,238,251,.38);
  --line:rgba(255,255,255,.1);
  --accent:#7c5cff;
  --accent-2:#b9a5ff;
  --mint:#b9a5ff;
  --danger:#ffb9b9;
  --r:16px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-body:'Golos Text',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-display:'Unbounded','Golos Text',system-ui,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,Consolas,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font-body);font-size:16px;line-height:1.5;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,p{margin:0;font:inherit}
::selection{background:rgba(124,92,255,.35);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:10px}
[hidden]{display:none !important}

/* ---------- layout ---------- */
.auth{
  position:relative;min-height:100dvh;
  display:grid;grid-template-columns:1fr clamp(460px,36vw,580px);
  isolation:isolate;
}
.auth__bg{
  position:fixed;inset:0;z-index:-2;
  background:url("auth-bg3.webp") center 52%/cover no-repeat;
  opacity:0;transform:scale(1.05);
  animation:bgIn 1.5s var(--ease) forwards;
}
.auth__shade{
  position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
    linear-gradient(180deg,rgba(6,4,14,.62) 0%,rgba(6,4,14,.08) 24%,rgba(6,4,14,.1) 55%,rgba(6,4,14,.8) 100%),
    radial-gradient(85% 75% at 30% 45%,transparent 38%,rgba(6,4,14,.45) 100%);
}

/* ---------- brand ---------- */
.auth-brand{
  position:absolute;top:clamp(18px,2.4vw,30px);left:clamp(18px,2.4vw,30px);z-index:6;
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-display);font-size:14px;font-weight:500;letter-spacing:.01em;
  color:rgba(255,255,255,.74);
  transition:color .2s;
  animation:rise .8s var(--ease) backwards .05s;
}
.auth-brand:hover{color:#fff}
.auth-brand__mark{
  width:28px;height:28px;border-radius:9px;flex:0 0 auto;overflow:hidden;
  display:grid;place-items:center;
  background:linear-gradient(145deg,#2a2456,#101420);
  border:1px solid rgba(124,92,255,.5);
  box-shadow:0 0 20px -5px rgba(124,92,255,.7),inset 0 1px 0 rgba(255,255,255,.14);
}
.auth-brand__mark img{width:100%;height:100%;object-fit:cover;display:block}
.auth-brand__mark svg{width:14px;height:14px}

/* ---------- quote ---------- */
.auth-quote{
  position:absolute;left:clamp(24px,3vw,48px);bottom:clamp(26px,4vh,52px);z-index:5;
  max-width:clamp(320px,34vw,560px);
  font-family:var(--font-display);font-weight:500;
  font-size:clamp(24px,2.35vw,38px);line-height:1.16;letter-spacing:-.03em;
  color:rgba(255,255,255,.84);
  text-shadow:0 2px 26px rgba(0,0,0,.55);
  animation:quoteIn 1s var(--ease) backwards .35s;
}
.auth-quote span{color:var(--mint)}

/* ---------- panel ---------- */
.auth-panel{
  position:relative;z-index:2;grid-column:2;
  display:flex;align-items:center;justify-content:center;
  min-height:100dvh;
  padding:clamp(40px,6vh,76px) clamp(26px,3vw,56px);
  background:rgba(14,10,28,.78);
  -webkit-backdrop-filter:blur(40px) saturate(1.15);
  backdrop-filter:blur(40px) saturate(1.15);
  border-left:1px solid rgba(255,255,255,.07);
  box-shadow:-40px 0 90px -70px #000;
}
.auth-panel::before{
  content:"";position:absolute;top:0;bottom:0;right:100%;width:120px;pointer-events:none;
  background:rgba(14,10,28,.42);
  -webkit-backdrop-filter:blur(40px);
  backdrop-filter:blur(40px);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000);
  mask-image:linear-gradient(90deg,transparent,#000);
}
.auth-panel__inner{width:min(402px,100%)}

/* ---------- headings ---------- */
.auth-title{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(25px,2.3vw,33px);line-height:1.15;letter-spacing:-.03em;
  text-align:center;
  animation:rise .7s var(--ease) backwards .14s;
}
.auth-switch{
  margin-top:10px;text-align:center;
  font-size:13.5px;color:var(--muted);
  animation:rise .7s var(--ease) backwards .22s;
}
.auth-switch a{
  color:var(--mint);text-decoration:underline;
  text-decoration-color:rgba(185,165,255,.35);text-underline-offset:3px;
  transition:color .2s,text-decoration-color .2s;
}
.auth-switch a:hover{color:#d8ccff;text-decoration-color:currentColor}

/* ---------- form ---------- */
.auth-form{margin-top:30px;display:flex;flex-direction:column;gap:16px;animation:rise .7s var(--ease) backwards .3s}
.field{display:flex;flex-direction:column;gap:7px}
.field__row{display:flex;align-items:center;justify-content:space-between;gap:12px}
.field__label{font-size:12px;color:rgba(255,255,255,.48);letter-spacing:.01em;padding-left:2px}
.field__link{font-size:12px;color:rgba(185,165,255,.85);transition:color .2s}
.field__link:hover{color:var(--mint)}
.field__box{
  position:relative;display:flex;align-items:center;gap:11px;
  height:54px;padding:0 14px;
  background:rgba(255,255,255,.045);
  border:1px solid var(--line);border-radius:var(--r);
  transition:border-color .2s,background .2s,box-shadow .2s;
}
.field__box:focus-within{
  border-color:rgba(124,92,255,.55);
  background:rgba(255,255,255,.06);
  box-shadow:0 0 0 3px rgba(124,92,255,.13);
}
.field__icon{width:18px;height:18px;flex:0 0 auto;color:rgba(255,255,255,.34);transition:color .2s}
.field__box:focus-within .field__icon{color:var(--accent-2)}
.field__input{
  flex:1;min-width:0;height:100%;
  background:none;border:0;outline:none;
  color:var(--text);font-size:15px;line-height:1;
}
.field__input::placeholder{color:rgba(255,255,255,.22)}
.field__input:-webkit-autofill,
.field__input:-webkit-autofill:hover,
.field__input:-webkit-autofill:focus{
  -webkit-text-fill-color:var(--text);
  -webkit-box-shadow:0 0 0 1000px #0b1411 inset;
  caret-color:var(--text);
}
.field__input--code{
  font-family:var(--font-mono);font-size:18px;font-weight:600;
  letter-spacing:.34em;text-align:center;
}
.field__eye{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  display:grid;place-items:center;color:rgba(255,255,255,.38);
  transition:color .2s,background .2s;
}
.field__eye:hover{color:#fff;background:rgba(255,255,255,.06)}
.field__eye.is-on{color:var(--accent-2)}
.field__eye svg{width:17px;height:17px}
.field__hint{margin:0;padding-left:2px;font-size:11.5px;line-height:1.45;color:var(--faint)}

/* ---------- button ---------- */
.auth-btn{
  display:flex;align-items:center;justify-content:center;gap:10px;
  width:100%;height:52px;margin-top:8px;
  border-radius:var(--r);
  background:linear-gradient(135deg,#9a7cff 0%,#7c5cff 45%,#5a3be0 100%);
  color:#fff;font-family:var(--font-display);font-weight:600;font-size:14.5px;letter-spacing:-.01em;
  box-shadow:0 18px 36px -16px rgba(124,92,255,.95),inset 0 1px 0 rgba(255,255,255,.26);
  transition:transform .18s var(--ease),box-shadow .2s,opacity .2s;
}
.auth-btn:hover{transform:translateY(-1px);box-shadow:0 24px 46px -16px rgba(124,92,255,1),inset 0 1px 0 rgba(255,255,255,.3)}
.auth-btn:active{transform:scale(.985)}
.auth-btn:disabled{opacity:.55;cursor:default;transform:none}
.auth-btn svg{width:16px;height:16px;flex:0 0 auto;transition:transform .2s var(--ease)}
.auth-btn:hover svg{transform:translateX(3px)}
.auth-btn--ghost{
  margin-top:0;background:rgba(255,255,255,.05);
  border:1px solid var(--line);box-shadow:none;
  font-weight:500;color:var(--text);
}
.auth-btn--ghost:hover{background:rgba(255,255,255,.09);box-shadow:none;transform:none}

/* ---------- messages ---------- */
.msg{
  padding:11px 13px;border-radius:12px;
  border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04);
  color:var(--muted);font-size:13px;line-height:1.5;
}
.msg--error{border-color:rgba(255,107,107,.3);background:rgba(255,107,107,.09);color:var(--danger)}
.msg--ok{border-color:rgba(159,180,255,.32);background:rgba(159,180,255,.12);color:#dcd4ff}

/* ---------- extras ---------- */
.auth-note{
  margin-top:16px;text-align:center;
  font-size:12px;line-height:1.5;color:var(--faint);
  animation:rise .7s var(--ease) backwards .38s;
}
.auth-help{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  width:100%;margin-top:22px;
  font-size:12.5px;color:rgba(255,255,255,.45);
  transition:color .2s;
  animation:rise .7s var(--ease) backwards .44s;
}
.auth-help:hover{color:#fff}
.auth-help svg{width:14px;height:14px;transition:transform .2s}
.auth-help:hover svg{transform:translateX(3px)}
.auth-back{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;
  font-size:12.5px;color:rgba(255,255,255,.5);
  transition:color .2s;
}
.auth-back:hover{color:#fff}
.auth-back svg{width:14px;height:14px}
.auth-foot{
  margin-top:30px;text-align:center;
  font-size:11px;letter-spacing:.02em;color:rgba(255,255,255,.22);
}

@keyframes bgIn{to{opacity:1;transform:scale(1)}}
@keyframes rise{
  from{opacity:0;filter:blur(10px);transform:translateY(16px)}
  to{opacity:1;filter:blur(0);transform:none}
}
@keyframes quoteIn{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:none}
}

/* ---------- tablet / mobile ---------- */
@media (max-width:1023px){
  .auth{display:block}
  .auth__bg{background-position:center 46%}
  .auth__shade{
    background:
      linear-gradient(180deg,rgba(6,4,14,.55) 0%,rgba(6,4,14,.18) 18%,rgba(6,4,14,.3) 46%,rgba(6,4,14,.86) 100%),
      radial-gradient(90% 60% at 50% 38%,transparent 30%,rgba(6,4,14,.5) 100%);
  }
  .auth-panel{
    min-height:100dvh;width:100%;
    padding:104px 22px 48px;
    background:rgba(11,8,22,.56);
    -webkit-backdrop-filter:blur(14px) saturate(1.15);
    backdrop-filter:blur(14px) saturate(1.15);
    border-left:0;
    box-shadow:none;
  }
  .auth-panel::before{display:none}
  .auth-panel__inner{width:min(420px,100%)}
  .auth-quote{display:none}
  .auth-brand{position:absolute;top:20px;left:20px}
}
@media (max-width:480px){
  .auth-panel{padding:92px 18px 36px}
  .auth-form{margin-top:26px;gap:14px}
  .field__box{height:52px}
  .field__input{font-size:16px}
  .auth-btn{height:50px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-delay:0ms !important;transition-duration:.001ms !important}
}