/* Spottd — Flush, modern login. Campus vibe, accessible, responsive. */
:root{
  --bg-deep:#100a1f;
  --violet:#6a11cb;
  --magenta:#ff2d72;
  --teal:#35e0d0;
  --card:rgba(255,255,255,0.08);
  --card-border:rgba(255,255,255,0.18);
  --text:#fff;
  --muted:#cbd5e1;
  --focus:#a78bfa;
}

*{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-deep);
  line-height:1.5;
  overflow-x:hidden;
}

/* subtle animated gradient with optional campus layer */
.bg{
  position:fixed; inset:0; z-index:-1;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(53,224,208,.25), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(255,45,114,.25), transparent 60%),
    linear-gradient(120deg,#251046 0%,#441b7f 50%,#2a0a50 100%);
  background-size:cover,cover,100% 100%;
  background-position:center,center,center;
  filter:saturate(1.05) contrast(1.03);
}
@media (prefers-reduced-motion:no-preference){
  .bg{animation:float 18s ease-in-out infinite alternate}
  @keyframes float{from{transform:translateY(0)} to{transform:translateY(-10px)}}
}

.site-header{
  max-width:1120px; margin:0 auto; padding:24px 20px 0;
}
.logo{height:38px; width:auto; display:block; filter:drop-shadow(0 2px 4px rgba(0,0,0,.35))}

/* layout */
.wrap{max-width:1120px; margin:0 auto; padding:24px 20px 64px}
.hero{margin:46px 0 16px}
.hero h1{margin:0 0 6px; font-size:clamp(28px,4.6vw,44px); font-weight:800; letter-spacing:-.02em}
.sub{margin:0; color:var(--muted); max-width:720px}

/* card */
.card{
  background:var(--card);
  border:1px solid var(--card-border);
  border-radius:16px;
  padding:24px;
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.login{margin-top:22px; max-width:520px}
.login h2{margin:0 0 12px; font-size:22px}

/* fields */
.field{display:block; margin:12px 0}
.field>span{display:block; font-size:14px; color:var(--muted); margin-bottom:6px}
.field input{
  width:100%; padding:14px; border-radius:10px; border:1px solid transparent;
  background:rgba(255,255,255,.12); color:var(--text); outline:none;
}
.field input::placeholder{color:#cbd5e1aa}
.field input:focus{border-color:var(--focus); box-shadow:0 0 0 3px rgba(167,139,250,.35)}

/* password toggle */
.pw-wrap{position:relative; display:flex; align-items:center}
.pw-wrap input{padding-right:44px}
.pw-toggle{
  position:absolute; right:8px; top:50%; transform:translateY(-50%);
  width:34px; height:34px; border-radius:8px; border:1px solid transparent;
  background:rgba(255,255,255,.12); color:#e2e8f0; cursor:pointer;
}
.pw-toggle:hover{background:rgba(255,255,255,.18)}
.pw-toggle:focus{outline:none; border-color:var(--focus)}

.row{display:flex; justify-content:space-between; align-items:center; margin:8px 0 14px}
.checkbox{display:inline-flex; align-items:center; gap:8px; font-size:14px; color:var(--muted)}
.checkbox input{width:16px; height:16px}

/* buttons */
.btn{
  width:100%; padding:12px 16px; border-radius:12px; border:0;
  font-weight:700; cursor:pointer; transition:transform .05s ease, filter .15s ease
}
.btn:active{transform:translateY(1px)}
.primary{background:linear-gradient(90deg,var(--magenta),var(--teal)); color:#111}
.primary:hover{filter:brightness(1.05)}
.secondary{background:rgba(255,255,255,.12); color:var(--text); border:1px solid var(--card-border)}
.secondary[disabled]{opacity:.75; cursor:not-allowed}

.or{display:grid; place-items:center; margin:12px 0; color:var(--muted)}
.or span{padding:0 8px}

.hint{margin:10px 0 0; min-height:20px; color:#f8fafc; font-size:13px}
.hint.warn{color:#fde68a}
.hint.good{color:#86efac}
.t-and-p{margin:14px 0 0; font-size:12px; color:var(--muted)}
.t-and-p a{color:var(--muted); text-decoration:underline dotted}
.site-footer{margin-top:36px; color:var(--muted); font-size:13px}

/* mobile */
@media (max-width:640px){
  .wrap{padding:16px}
  .site-header{padding:16px 16px 0}
  .logo{height:34px}
  .hero{margin:24px 0 8px}
  .login{margin-top:14px}
}