:root{
  --navy:#0B1F3A;
  --blue:#1F4ED8;
  --orange:#F59E0B;
  --yellow:#FACC15;
  --green:#16A34A;

  --bg:#F3F4F6;
  --card:#FFFFFF;
  --text:#0F172A;
  --muted:#6B7280;
  --border:rgba(15,23,42,.12);

  --shadow:0 12px 32px rgba(2,6,23,.12);
  --shadow-soft:0 10px 24px rgba(2,6,23,.08);
  --radius:14px;
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background:var(--bg);
}

a{color:inherit;text-decoration:none;}
.link{color:var(--blue);font-weight:600;}
.link:hover{text-decoration:underline;}

.auth{
  min-height:100vh;
  display:grid;
  grid-template-columns:1.1fr 1fr;
}

.auth__side{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(1200px 600px at 20% 20%, rgba(245,158,11,.25), transparent 60%),
    radial-gradient(900px 500px at 70% 60%, rgba(31,78,216,.22), transparent 60%),
    linear-gradient(180deg, var(--navy), #071529);
  padding:40px;
  display:flex;
  align-items:stretch;
}

.auth__side-content{
  width:100%;
  position:relative;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:2;
}

.auth__bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.18;
  transform:scale(1.05);
  filter:saturate(1.1) contrast(1.05);
}

.auth__side-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(120deg, rgba(11,31,58,.92), rgba(11,31,58,.70));
  z-index:1;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
  color:#fff;
}

.brand__mark{
  width:54px;
  height:54px;
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.18);
  border-radius:14px;
  display:grid;
  place-items:center;
  overflow:hidden;
}
.brand__mark img{width:80%;height:auto;display:block;}

.brand__name{font-weight:800;letter-spacing:.10em;}
.brand__tagline{font-size:.92rem;opacity:.85;}

.side-card{
  margin-top:auto;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);
  padding:18px;
  color:#fff;
  box-shadow:var(--shadow-soft);
  backdrop-filter:blur(8px);
}
.side-card__title{font-weight:700;font-size:1.05rem;}
.side-card__p{
  margin:10px 0 14px;
  color:rgba(255,255,255,.85);
  line-height:1.5;
}
.side-list{
  list-style:none;
  padding:0;
  margin:0;
  display:grid;
  gap:8px;
  color:rgba(255,255,255,.92);
  font-weight:600;
}

.auth__main{
  display:grid;
  place-items:center;
  padding:32px 18px;
}
.auth__main-inner{
  width:min(520px,100%);
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow);
  padding:28px;
}

.header__kicker{
  display:inline-flex;
  gap:8px;
  align-items:center;
  font-size:.85rem;
  font-weight:700;
  color:var(--navy);
  background:rgba(245,158,11,.16);
  border:1px solid rgba(245,158,11,.26);
  padding:6px 10px;
  border-radius:999px;
}
.header__title{
  margin:10px 0 6px;
  font-size:1.55rem;
  letter-spacing:-.02em;
}
.header__subtitle{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.55;
}

.form{display:grid;gap:14px;}

.field label{
  display:block;
  font-weight:700;
  font-size:.92rem;
  margin-bottom:8px;
  color:var(--navy);
}
.field input{
  width:100%;
  border:1px solid var(--border);
  background:#fff;
  border-radius:12px;
  padding:12px;
  font-size:.98rem;
  outline:none;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.field input::placeholder{color:#94A3B8;}
.field input:focus{
  border-color:rgba(31,78,216,.55);
  box-shadow:0 0 0 4px rgba(31,78,216,.14);
}

.phone{
  display:grid;
  grid-template-columns:74px 1fr;
  gap:10px;
  align-items:center;
}
.phone__prefix{
  display:grid;
  place-items:center;
  height:44px;
  border-radius:12px;
  background:rgba(15,23,42,.04);
  border:1px solid var(--border);
  font-weight:800;
  color:var(--navy);
}

.btn{
  width:100%;
  border:1px solid transparent;
  border-radius:12px;
  padding:12px 14px;
  font-weight:800;
  cursor:pointer;
  transition:transform .08s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  display:inline-flex;
  justify-content:center;
  align-items:center;
  gap:10px;
}
.btn:active{transform:translateY(1px);}

.btn--primary{
  background:linear-gradient(90deg, var(--blue), #2A67FF);
  color:#fff;
  box-shadow:0 12px 22px rgba(31,78,216,.22);
}
.btn--primary:hover{box-shadow:0 14px 26px rgba(31,78,216,.28);}

.btn--ghost{
  background:transparent;
  border-color:rgba(15,23,42,.16);
  color:var(--navy);
}
.btn--ghost:hover{background:rgba(15,23,42,.03);}

.divider{
  display:grid;
  place-items:center;
  position:relative;
  margin:6px 0 -2px;
}
.divider span{
  font-size:.9rem;
  color:var(--muted);
  background:#fff;
  padding:0 10px;
}
.divider::before{
  content:"";
  position:absolute;
  left:0;right:0;
  top:50%;
  height:1px;
  background:rgba(15,23,42,.12);
  transform:translateY(-50%);
  z-index:-1;
}

.footer{
  margin-top:18px;
  display:flex;
  justify-content:center;
  gap:10px;
  color:var(--muted);
  font-size:.9rem;
}
.footer .dot{opacity:.6;}

@media (max-width:980px){
  .auth{grid-template-columns:1fr;}
  .auth__side{display:none;}
  .auth__main-inner{padding:24px 18px;}
}
@media (max-width:520px){
  .phone{grid-template-columns:88px 1fr;}
}