:root {
  --bg-1:#0f172a; 
  --bg-2:#111827; 
  --accent:#7c3aed; 
  --accent-2:#22d3ee;
  --text:#e5e7eb; 
  --muted:#94a3b8; 
  --card:rgba(17,24,39,.6); 
  --stroke:rgba(148,163,184,.15);
}

* { box-sizing:border-box }
html,body { height:100% }
body {
  margin:0;
  font-family:Inter,system-ui,Segoe UI,Roboto,Arial;
  background:var(--bg-1);
  color:var(--text);
}

/* خلفية متدرجة */
.bg {
  position:fixed; inset:0;
  background:
    radial-gradient(800px 500px at 10% -20%, rgba(124,58,237,.35), transparent 60%),
    radial-gradient(800px 500px at 100% 20%, rgba(34,211,238,.25), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2));
  filter:saturate(1.2);
  z-index:-1;
}

/* الحاوية العامة */
.container {
  min-height:100%;
  display:grid;
  place-items:center;
  padding:24px;
}

/* البطاقة */
.card {
  width:100%; 
  max-width:430px; 
  border:1px solid var(--stroke);
  background:linear-gradient(160deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  backdrop-filter: blur(14px);
  border-radius:20px; 
  padding:28px 26px 18px;
  box-shadow:0 20px 60px rgba(0,0,0,.35);
}

/* العنوان */
.brand {
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:10px;
}
.logo {
  width:48px;
  height:48px;
  border-radius:14px;
  display:grid;
  place-items:center;
  font-weight:700;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  color:#0b1020; 
  letter-spacing:.5px;
}
.title h1 {
  margin:0;
  font-size:20px;
  font-weight:700;
}
.title .subtitle {
  margin:2px 0 0;
  color:var(--muted);
  font-size:13px;
}

/* نموذج الإدخال */
.form {
  display:grid;
  gap:10px;
  margin-top:16px;
}
.form label {
  font-size:12px;
  color:var(--muted);
}
.form input {
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--stroke);
  background:rgba(255,255,255,.04); 
  color:var(--text); 
  outline:none;
}
.form input:focus {
  border-color:rgba(124,58,237,.6);
  box-shadow:0 0 0 3px rgba(124,58,237,.15);
}

/* الزر */
.btn {
  margin-top:6px;
  padding:12px 14px;
  border:none; 
  border-radius:12px; 
  cursor:pointer;
  color:#0b1020;
  font-weight:700;
  letter-spacing:.2px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  transition:transform .06s ease;
}
.btn:active { transform:translateY(1px) }
.primary {
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
}

/* مؤشر التحميل */
.spinner {
  width:16px;
  height:16px;
  border-radius:50%;
  border:2px solid rgba(0,0,0,.25);
  border-top-color:rgba(0,0,0,.6);
  display:none;
  animation:spin .8s linear infinite;
}
.btn.loading #spinner { display:inline-block }
.btn.loading #loginText { opacity:.6 }

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

.msg {
  min-height:20px;
  color:#ffd5d5;
  font-size:13px;
}
.footer {
  margin-top:16px;
  text-align:center;
  color:var(--muted);
}