*{box-sizing:border-box;margin:0;padding:0}

:root{
  --sp-bg:
    radial-gradient(circle at 12% 16%, rgba(255,115,64,.18), transparent 20%),
    radial-gradient(circle at 88% 18%, rgba(255,196,0,.16), transparent 18%),
    linear-gradient(180deg, #fff5ef 0%, #fff7f2 48%, #fff1eb 100%);
  --sp-ink:#1f2937;
  --sp-muted:#6b7280;
  --sp-card:#ffffff;
  --sp-border:rgba(15,23,42,.08);
  --sp-shadow:0 34px 90px rgba(15,23,42,.14);
  --sp-accent:#ee4d2d;
  --sp-accent-2:#ff7a45;
  --sp-soft:#fff1eb;
}

html,body{min-height:100%}

body{
  min-height:100vh;
  font-family:"Inter","Segoe UI",sans-serif;
  color:var(--sp-ink);
  background:var(--sp-bg);
  overflow-x:hidden;
  position:relative;
}

body::before,
body::after{
  content:"";
  position:fixed;
  border-radius:999px;
  pointer-events:none;
  z-index:0;
}

body::before{
  width:300px;
  height:300px;
  left:-100px;
  top:90px;
  background:radial-gradient(circle, rgba(238,77,45,.18), rgba(238,77,45,0));
}

body::after{
  width:340px;
  height:340px;
  right:-120px;
  bottom:-30px;
  background:radial-gradient(circle, rgba(255,184,77,.20), rgba(255,184,77,0));
}

.back-btn{
  position:fixed;
  top:24px;
  left:24px;
  z-index:30;
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 16px;
  border-radius:999px;
  border:1px solid rgba(15,23,42,.08);
  background:rgba(255,255,255,.88);
  color:#374151;
  text-decoration:none;
  font-weight:700;
  box-shadow:0 14px 28px rgba(15,23,42,.08);
  backdrop-filter:blur(14px);
}

.back-btn:hover{transform:translateY(-1px)}

.auth-stage{
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:88px 24px 32px;
  position:relative;
  z-index:1;
}

.auth-shell{
  width:min(1180px,100%);
  display:grid;
  grid-template-columns:minmax(0, 1fr) minmax(360px, .92fr);
  background:rgba(255,255,255,.74);
  border:1px solid rgba(255,255,255,.82);
  border-radius:32px;
  box-shadow:var(--sp-shadow);
  overflow:hidden;
  backdrop-filter:blur(16px);
}

.auth-panel{
  padding:56px 54px 48px;
  background:linear-gradient(180deg, rgba(255,255,255,.98), rgba(255,255,255,.93));
}

.auth-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 14px;
  border-radius:999px;
  background:#fff1eb;
  border:1px solid #ffd6c8;
  color:#c2410c;
  font-size:11px;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
}

.auth-kicker__dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background:linear-gradient(135deg, var(--sp-accent), var(--sp-accent-2));
  box-shadow:0 0 0 4px rgba(238,77,45,.10);
}

.auth-title{
  margin-top:24px;
  font-size:clamp(2.8rem, 5vw, 4.6rem);
  line-height:.92;
  letter-spacing:-.08em;
  color:var(--sp-ink);
}

.auth-subtitle{
  margin-top:16px;
  max-width:520px;
  color:var(--sp-muted);
  font-size:1rem;
  line-height:1.7;
}

.auth-bodycopy{
  margin-top:22px;
  color:var(--sp-muted);
  line-height:1.72;
}

.auth-list{
  margin:18px 0 0;
  padding:0;
  list-style:none;
  display:grid;
  gap:10px;
}

.auth-list li{
  position:relative;
  padding-left:24px;
  color:#374151;
  line-height:1.65;
}

.auth-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:10px;
  height:10px;
  border-radius:999px;
  background:linear-gradient(135deg, var(--sp-accent), var(--sp-accent-2));
  box-shadow:0 0 0 5px rgba(238,77,45,.10);
}

.auth-meta-row{
  margin-top:24px;
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:12px;
}

.auth-meta-card{
  padding:16px 18px;
  border-radius:18px;
  border:1px solid #f2ddd6;
  background:#fff8f4;
}

.auth-meta-card strong{
  display:block;
  color:var(--sp-ink);
  font-size:1.35rem;
  letter-spacing:-.03em;
}

.auth-meta-card span{
  display:block;
  margin-top:6px;
  color:var(--sp-muted);
  font-size:.92rem;
  line-height:1.5;
}

.login-msg{
  margin-top:18px;
  padding:14px 16px;
  border-radius:16px;
  font-weight:600;
  line-height:1.5;
  border:1px solid rgba(15,23,42,.08);
  display:none;
}

.login-msg[data-kind="error"]{
  display:block;
  background:#fef2f2;
  color:#b91c1c;
}

.login-msg[data-kind="info"]{
  display:block;
  background:#fff7ed;
  color:#c2410c;
}

.login-msg[data-kind="success"]{
  display:block;
  background:#ecfdf5;
  color:#166534;
}

.form{
  margin-top:26px;
  display:grid;
  gap:14px;
}

.auth-field{
  position:relative;
}

.auth-field__input{
  width:100%;
  min-height:56px;
  padding:0 18px 0 52px;
  border-radius:18px;
  border:1px solid #f2ddd6;
  background:#fff8f4;
  color:var(--sp-ink);
  font-size:1rem;
  outline:none;
  transition:border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

.auth-field__input:focus{
  background:#fff;
  border-color:#fdba74;
  box-shadow:0 0 0 4px rgba(251,146,60,.12);
}

.auth-field__icon{
  position:absolute;
  left:18px;
  top:50%;
  transform:translateY(-50%);
  width:18px;
  height:18px;
  opacity:.68;
}

.auth-actions{
  display:grid;
  gap:12px;
  margin-top:8px;
}

.btn{
  min-height:52px;
  border:none;
  border-radius:18px;
  cursor:pointer;
  font-weight:800;
  font-size:1rem;
  letter-spacing:.01em;
  transition:transform .14s ease, box-shadow .2s ease, opacity .2s ease;
}

.btn:hover{transform:translateY(-1px)}

.btn:not(.btn-ghost){
  color:#fff;
  background:linear-gradient(135deg, var(--sp-accent), var(--sp-accent-2));
  box-shadow:0 18px 30px rgba(238,77,45,.24);
}

.btn-ghost{
  color:#374151;
  background:#fff;
  border:1px solid #f2ddd6;
}

.auth-links{
  margin-top:18px;
  color:var(--sp-muted);
  line-height:1.6;
}

.auth-links a{
  color:#c2410c;
  font-weight:800;
  text-decoration:none;
}

.auth-links a:hover{text-decoration:underline}

.muted{
  margin-top:14px;
  display:inline-block;
  color:var(--sp-muted);
  text-decoration:none;
}

.auth-visual{
  position:relative;
  padding:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.22), transparent 22%),
    linear-gradient(145deg, #e64d2d, #fb6a37 56%, #ff8b4f 100%);
  overflow:hidden;
}

.auth-visual::before,
.auth-visual::after{
  content:"";
  position:absolute;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.14);
}

.auth-visual::before{
  width:420px;
  height:420px;
  right:-120px;
  top:-90px;
}

.auth-visual::after{
  width:300px;
  height:300px;
  left:-90px;
  bottom:-110px;
}

.auth-visual__card{
  position:relative;
  z-index:1;
  width:min(100%, 430px);
  min-height:520px;
  border-radius:28px;
  padding:28px;
  background:linear-gradient(180deg, rgba(255,255,255,.14), rgba(255,255,255,.08));
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 28px 60px rgba(0,0,0,.18);
  color:#fff;
}

.auth-visual__badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 12px;
  border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.18);
  font-size:11px;
  font-weight:800;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.auth-visual__title{
  margin-top:20px;
  font-size:clamp(2rem, 3vw, 3rem);
  line-height:.96;
  letter-spacing:-.06em;
}

.auth-visual__text{
  margin-top:14px;
  max-width:320px;
  color:rgba(255,255,255,.82);
  line-height:1.65;
}

.auth-visual__stack{
  margin-top:28px;
  display:grid;
  gap:14px;
}

.auth-feature{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:14px 16px;
  border-radius:18px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.16);
}

.auth-feature__icon{
  flex:0 0 auto;
  width:42px;
  height:42px;
  border-radius:14px;
  display:grid;
  place-items:center;
  background:rgba(255,255,255,.16);
}

.auth-feature__icon svg{
  width:20px;
  height:20px;
}

.auth-feature__title{
  display:block;
  font-weight:800;
}

.auth-feature__meta{
  display:block;
  margin-top:4px;
  color:rgba(255,255,255,.76);
  line-height:1.45;
  font-size:.92rem;
}

.auth-visual__pulse{
  position:absolute;
  right:30px;
  bottom:26px;
  width:92px;
  height:92px;
  border-radius:28px;
  background:linear-gradient(145deg, rgba(255,215,0,.95), rgba(255,255,255,.32));
  box-shadow:0 18px 32px rgba(255,196,0,.26);
}

.auth-visual__pulse::after{
  content:"";
  position:absolute;
  inset:26px;
  border-radius:18px;
  background:#c2410c;
}

@media (max-width: 980px){
  .auth-shell{
    grid-template-columns:1fr;
  }

  .auth-panel{
    padding:34px 24px 28px;
  }

  .auth-visual{
    min-height:420px;
  }
}

@media (max-width: 640px){
  .auth-stage{
    padding:82px 12px 20px;
  }

  .auth-shell{
    border-radius:24px;
  }

  .auth-visual{
    padding:18px;
    min-height:360px;
  }

  .auth-visual__card{
    min-height:unset;
    padding:22px;
  }

  .auth-title{
    font-size:2.6rem;
  }

  .back-btn{
    left:12px;
    top:14px;
  }

  .auth-meta-row{
    grid-template-columns:1fr;
  }
}