html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: #ffffff;
  background: #0a0a0a;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.15"/><circle cx="10" cy="60" r="0.8" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.6" fill="white" opacity="0.12"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
  z-index: -1;
}

.form-signin {
  width: 100%;
  max-width: 400px;
  padding: 2.5rem;
  margin: auto;
  background: rgba(20, 20, 25, 0.7);
  backdrop-filter: blur(10px);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 2;
}

.form-signin::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #ff6b6b, #ffa726, #667eea);
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
}

.form-signin img.mb-4 {
  width: 180px;
  height: auto;
  margin-bottom: 2rem !important;
}

.form-signin h1 {
  font-size: 1.8rem;
  font-weight: 700;
  color: white;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  margin-bottom: 2rem;
}

.form-signin .form-control {
  position: relative;
  box-sizing: border-box;
  height: auto;
  padding: 1rem;
  font-size: 1rem;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  border-radius: 10px;
  transition: all 0.3s ease;
  margin-bottom: 1rem;
}

.form-signin .form-control:focus {
  z-index: 2;
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
  outline: none;
}

.form-signin .form-control::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

/* Buttons */
.btn {
  font-weight: 600;
  padding: 0.8rem 1.5rem;
  border-radius: 10px;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: linear-gradient(45deg, #667eea, #764ba2);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover, .btn-primary:focus {
  background: linear-gradient(45deg, #5a71d5, #6a439c);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-outline-secondary {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
}

.btn-outline-secondary:hover, .btn-outline-secondary:focus {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  color: white;
  transform: translateY(-2px);
}

/* Alerts */
.alert-danger {
  background-color: rgba(220, 53, 69, 0.2);
  border-color: rgba(220, 53, 69, 0.3);
  color: #f8d7da;
}

/* Links */
a {
  color: #a097e8;
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: #c4befa;
}

/* Divider */
hr {
  border-color: rgba(255, 255, 255, 0.1);
}

.text-muted {
  color: rgba(255, 255, 255, 0.5) !important;
}

.bg-white {
  background-color: #0a0a0a !important;
}