:root{
  --primary:#1f5fa8;
  --accent:#ff8c1a;
  --dark:#1e293b;
  --gray:#f1f5f9;
}

*{
  box-sizing:border-box;
}

body{
  margin:0;
  font-family:Inter,Segoe UI,sans-serif;
  background:linear-gradient(135deg,var(--primary),#163f73);
  min-height:100vh;
}

/* WRAPPER */
.login-wrapper{
  display:flex;
  min-height:100vh;
}

/* HERO SIDE */
.login-hero{
  flex:1;
  color:white;
  padding:60px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.login-hero .logo{
  width:150px;
  margin-bottom:24px;
}

.login-hero h1{
  margin:0;
  font-size:42px;
}

.login-hero h2{
  margin:6px 0 18px;
  color:var(--accent);
}

.login-hero p{
  max-width:420px;
  line-height:1.6;
  opacity:.9;
}

/* CARD */
.login-card{
  width:420px;
  background:white;
  padding:48px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}

.login-card h3{
  font-size:28px;
  margin:0;
}

.subtitle{
  color:#666;
  margin-bottom:24px;
}

/* FORM */
.login-card label{
  font-size:14px;
  margin-bottom:6px;
  display:block;
}

.login-card input{
  width:100%;
  padding:14px;
  border-radius:12px;
  border:1px solid #ddd;
  margin-bottom:18px;
  font-size:15px;
}

.login-card input:focus{
  outline:none;
  border-color:var(--primary);
}

/* BUTTON */
.btn-primary{
  background:var(--accent);
  color:white;
  border:none;
  padding:14px;
  border-radius:14px;
  font-size:16px;
  font-weight:600;
  cursor:pointer;
}

.back{
  margin-top:20px;
  display:block;
  text-align:center;
  text-decoration:none;
  color:var(--primary);
  font-weight:600;
}

/* MOBILE */
@media(max-width:900px){
  .login-wrapper{
    flex-direction:column;
  }

  .login-hero{
    padding:40px 20px;
    text-align:center;
  }

  .login-hero p{
    margin:auto;
  }

  .login-card{
    width:100%;
    padding:32px 24px;
    border-radius:24px 24px 0 0;
  }
}
/* ERROR */
.error{
  background:#fee2e2;
  color:#b91c1c;
  padding:10px;
  border-radius:10px;
  margin-bottom:12px;
  display:none;
  font-size:14px;
}

/* LOADING BUTTON */
button.loading{
  pointer-events:none;
  opacity:.85;
}

button .loader{
  display:none;
}

button.loading .btn-text{
  display:none;
}

button.loading .loader{
  display:inline-block;
  width:18px;
  height:18px;
  border:3px solid white;
  border-top-color:transparent;
  border-radius:50%;
  animation:spin 1s linear infinite;
}

@keyframes spin{
  to{ transform:rotate(360deg); }
}