@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;700&display=swap');

:root{
  --bg1:#0f172a;
  --bg2:#1e1b4b;
  --glass:rgba(30,41,59,.72);
  --border:rgba(255,255,255,.10);
  --primary:#8b5cf6;
  --primary2:#d946ef;
  --text:#f8fafc;
  --muted:#94a3b8;
}

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

body{
  font-family:'Outfit',sans-serif;
  min-height:100vh;
  background:linear-gradient(135deg,var(--bg2),var(--bg1));
  color:var(--text);
  overflow-x:hidden;
}

/* background canvas */
.three-bg{
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
}

/* keep content top */
nav,.container{
  position:relative;
  z-index:2;
}

/* navbar */
.navbar{
  background:rgba(15,23,42,.75)!important;
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}

.navbar-brand{
  font-size:1.4rem;
  font-weight:700;
  letter-spacing:.06em;
  background:linear-gradient(to right,#c084fc,#8b5cf6);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* cards */
.card,
.login-card{
  background:var(--glass);
  border:1px solid var(--border);
  border-radius:20px;
  backdrop-filter:blur(16px);
  box-shadow:0 25px 50px rgba(0,0,0,.35);
  color:var(--text);
  animation:fadeUp .6s ease;
}

.card-header{
  background:transparent;
  border-bottom:1px solid var(--border);
}

.login-card{
  max-width:430px;
  width:100%;
}

/* form */
.form-label{
  color:var(--muted);
  font-weight:400;
}

.form-control{
  background:rgba(15,23,42,.60);
  border:1px solid var(--border);
  color:white;
  border-radius:12px;
  padding:.8rem 1rem;
}

.form-control::placeholder{
  color:var(--muted);
}

.form-control:focus{
  background:rgba(15,23,42,.80);
  color:white;
  border-color:var(--primary);
  box-shadow:0 0 0 .25rem rgba(139,92,246,.20);
}

/* buttons */
.btn-primary{
  border:none;
  border-radius:12px;
  font-weight:600;
  padding:.75rem 1rem;
  background:linear-gradient(135deg,var(--primary),var(--primary2));
  transition:.25s ease;
}

.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 15px 30px rgba(139,92,246,.35);
}

.btn-outline-light{
  border-radius:12px;
  border:1px solid var(--border);
}

.btn-outline-light:hover{
  background:rgba(255,255,255,.08);
}

/* links */
a{
  color:#c084fc;
  text-decoration:none;
}

a:hover{
  color:#e9d5ff;
}

/* preview image */
#image-preview{
  max-height:300px;
  object-fit:contain;
  border-radius:14px;
  border:1px solid var(--border)!important;
}

/* result box */
#prediction-result h3{
  font-size:2rem;
  font-weight:700;
}

#prediction-result p{
  color:var(--muted);
}

/* alert */
.alert{
  border-radius:12px;
}

/* scrollbar */
::-webkit-scrollbar{
  width:8px;
}

::-webkit-scrollbar-thumb{
  background:#6d28d9;
  border-radius:20px;
}

/* animation */
@keyframes fadeUp{
  from{
    opacity:0;
    transform:translateY(20px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}

/* mobile */
@media(max-width:768px){

  .container{
    padding-left:16px;
    padding-right:16px;
  }

  .login-card{
    max-width:100%;
  }

  .navbar-brand{
    font-size:1.1rem;
  }
}