:root{
  --brand-red:#e1251b;--brand-dark:#a3141a;--brand-deep:#6e0d12;--brand-soft:#fff1ee;
  --milk:#fffdfb;--cream:#faf5f1;--paper:#f6f1ed;
  --ink:#2a2120;--ink-soft:#4a3e3b;--muted:#7b6f6b;--line:#eee2dd;--line-strong:#e3d2cc;
  --teal:#138a72;--amber:#f0a12b;
  --radius-xl:30px;--radius-lg:22px;--radius-md:16px;
  --shadow:0 4px 12px rgba(74,30,24,.05),0 24px 60px rgba(74,30,24,.12);
  --font:"Poppins","Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.5;-webkit-font-smoothing:antialiased;
  background:
    radial-gradient(900px 520px at 100% 0,rgba(225,37,27,.07),transparent 60%),
    radial-gradient(700px 420px at 40% 110%,rgba(240,161,43,.08),transparent 60%),
    linear-gradient(180deg,var(--milk),var(--paper));
}
::selection{background:var(--brand-red);color:#fff}

.auth{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(400px,.85fr);min-height:100vh;min-height:100dvh}

/* Hero */
.auth-hero{
  position:relative;overflow:hidden;isolation:isolate;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:clamp(24px,5vh,56px);
  margin:18px 0 18px 18px;padding:46px 52px 60px;border-radius:var(--radius-xl);color:#fff;
  background:
    linear-gradient(115deg,#8f1016 0%,#c5161c 34%,#e1251b 58%,rgba(225,37,27,.86) 74%,rgba(225,37,27,.55) 100%),
    url("../img/soprole/milk.webp") right bottom/cover no-repeat,#c5161c;
  box-shadow:0 22px 50px rgba(163,20,26,.28)
}
.auth-hero:before{
  content:"";position:absolute;z-index:-1;left:-160px;top:-180px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 66%)
}
.auth-hero:after{
  content:"";position:absolute;z-index:1;left:-4%;right:-4%;bottom:-1px;height:70px;background:var(--milk);
  -webkit-clip-path:ellipse(70% 70px at 50% 100%);clip-path:ellipse(70% 70px at 50% 100%)
}
.brandmark{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:center;flex:none;width:230px;height:150px;padding:14px 22px;
  background:#fff;border-radius:32px 32px 42px 32px;box-shadow:0 18px 40px rgba(90,8,12,.3);
  animation:logo-in .7s cubic-bezier(.2,.8,.2,1) both,bob 6s ease-in-out .7s infinite
}
.brandmark img{width:100%;height:100%;object-fit:contain;display:block}
@keyframes logo-in{from{opacity:0;transform:translateY(16px) rotate(-2.5deg) scale(.94)}to{opacity:1;transform:rotate(-2.5deg)}}
@keyframes bob{0%,100%{transform:rotate(-2.5deg)}50%{transform:rotate(-1deg) translateY(-6px)}}

.hero-packs{position:relative;z-index:2;flex:none;width:min(100%,640px);height:min(42vh,360px)}
.pack{
  --r:0deg;position:absolute;bottom:0;height:auto;will-change:transform;
  filter:drop-shadow(0 18px 22px rgba(60,20,14,.3)) drop-shadow(0 4px 6px rgba(60,20,14,.18));
  transform:rotate(var(--r));animation:float 5.2s ease-in-out infinite
}
@keyframes float{0%,100%{transform:translateY(0) rotate(var(--r))}50%{transform:translateY(-16px) rotate(calc(var(--r) + 2.5deg))}}
.pack.p1{--r:-6deg;left:2%;height:88%}
.pack.p2{--r:3deg;left:22%;height:94%;bottom:10px;z-index:2;animation-duration:6s;animation-delay:-1.4s}
.pack.p3{--r:-3deg;left:44%;height:80%;z-index:3;animation-duration:4.8s;animation-delay:-2.6s}
.pack.p4{--r:5deg;left:68%;height:58%;bottom:8px;animation-duration:5.6s;animation-delay:-.8s}

/* Panel */
.auth-panel{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;padding:40px 36px}
.card{
  position:relative;width:100%;max-width:430px;padding:36px 34px 30px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-xl);box-shadow:var(--shadow);animation:rise .55s cubic-bezier(.2,.8,.2,1)
}
.card:before{content:"";position:absolute;left:34px;right:34px;top:0;height:4px;border-radius:0 0 4px 4px;background:linear-gradient(90deg,var(--brand-red),var(--amber))}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.card-title{margin:0 0 22px;font-size:1.75rem;font-weight:800;letter-spacing:-.03em}
.card-title:has(+ .card-lead){margin-bottom:.3rem}
.card-lead{margin:0 0 22px;color:var(--muted);font-size:.88rem}
.card code{padding:2px 6px;border-radius:6px;background:var(--cream);font-size:.85em}

.alert{margin:0 0 16px;padding:12px 14px;border-radius:var(--radius-md);font-size:.84rem;font-weight:500}
.alert-error{background:#fff1ee;border:1px solid #f6c2bb;border-left:4px solid var(--brand-red);color:var(--brand-dark)}
.alert-ok{background:#e9f7f2;border:1px solid #bfe6d8;border-left:4px solid var(--teal);color:#0f6f5c}

.form{display:grid;gap:16px}
.field label{display:block;margin-bottom:6px;color:var(--brand-dark);font-size:.7rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase}
.control{position:relative;display:flex;align-items:center}
.control>svg{position:absolute;left:15px;width:19px;height:19px;fill:none;stroke:#c9a9a2;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round;pointer-events:none;transition:stroke .2s}
.control input{
  width:100%;height:52px;padding:0 48px 0 46px;border:1px solid var(--line-strong);border-radius:var(--radius-md);
  background:var(--milk);color:var(--ink);font:inherit;font-size:16px;outline:none;transition:border-color .2s,box-shadow .2s,background .2s
}
.control input::placeholder{color:#b9aca8}
.control input:focus{border-color:#f0948c;background:#fff;box-shadow:0 0 0 4px rgba(225,37,27,.12)}
.control:focus-within>svg{stroke:var(--brand-red)}
.has-error .control input{border-color:#ef8a80;background:#fffafa}
.reveal{position:absolute;right:6px;display:grid;place-items:center;width:40px;height:40px;border:0;border-radius:12px;background:transparent;cursor:pointer;color:#b9aca8}
.reveal:hover,.reveal[aria-pressed="true"]{color:var(--brand-red);background:var(--brand-soft)}
.reveal svg{width:19px;height:19px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.reveal:focus-visible,.btn:focus-visible,.remember input:focus-visible{outline:3px solid rgba(225,37,27,.35);outline-offset:2px}

.remember{display:flex;align-items:center;gap:10px;color:var(--ink-soft);font-size:.85rem;cursor:pointer;user-select:none}
.remember input{width:18px;height:18px;margin:0;accent-color:var(--brand-red)}

.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;height:54px;margin-top:4px;
  border:0;border-radius:999px;background:linear-gradient(135deg,var(--brand-red),#c5161c);color:#fff;font:inherit;font-size:.95rem;font-weight:700;
  cursor:pointer;box-shadow:0 12px 26px rgba(225,37,27,.32);transition:transform .2s,box-shadow .2s,filter .2s
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(225,37,27,.38)}
.btn:hover svg{transform:translateX(3px)}
.btn:active{transform:none}
.btn.is-loading{pointer-events:none;filter:saturate(.8)}
.btn.is-loading span:after{content:"…"}
.btn.is-loading svg{animation:nudge .8s ease-in-out infinite}
@keyframes nudge{50%{transform:translateX(5px)}}
/* Responsive */
@media(max-width:1100px){
  .auth{grid-template-columns:1fr 1fr}
  .auth-hero{padding:38px 30px 60px}
  .brandmark{width:200px;height:130px}
}
@media(max-width:860px){
  .auth{display:block}
  .auth-hero{
    margin:0;padding:calc(26px + env(safe-area-inset-top)) 22px 62px;gap:22px;border-radius:0 0 34px 34px;min-height:0;
    background:linear-gradient(160deg,#8f1016,#e1251b 70%,#ee4c3f)
  }
  .auth-hero:after{display:none}
  .brandmark{width:150px;height:98px;padding:10px 16px;border-radius:22px 22px 28px 22px}
  .hero-packs{width:min(100%,420px);height:170px}
  .pack.p4{left:72%;height:54%}
  .auth-panel{margin-top:-44px;padding:0 16px calc(28px + env(safe-area-inset-bottom));position:relative;z-index:3}
  .card{max-width:520px;padding:30px 22px 24px;border-radius:26px}
  .card:before{left:22px;right:22px}
}
@media(max-width:400px){
  .hero-packs{height:140px}
  .card-title{font-size:1.5rem}
}
@media(max-height:700px) and (min-width:861px){
  .hero-packs{height:min(38vh,240px)}
  .brandmark{width:180px;height:118px}
}
@media(prefers-reduced-motion:reduce){
  .pack{filter:none;animation-duration:7s}
  .pack.p2{animation-duration:8s}.pack.p3{animation-duration:6.5s}.pack.p4{animation-duration:7.5s}
  @keyframes float{0%,100%{transform:translateY(0) rotate(var(--r))}50%{transform:translateY(-9px) rotate(var(--r))}}
  .brandmark{box-shadow:0 10px 22px rgba(90,8,12,.25)}
  .btn,.control input{transition-property:transform,background-color,border-color}
}