html, body {
      height: 100%;
      margin: 0;
      font-family: 'Montserrat', sans-serif;
    }

body {
  background-color: #f5f7fa;
}

/* Card */
.login-card {
  width: 100%;
  max-width: 420px;
  border-radius: 8px;
}

/* Logo placeholder */
.logo-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff9800, #9c27b0);
}

.logo-lg {
  width: 56px;
  height: 56px;
  margin: 0 auto;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff9800, #9c27b0);
}

.logo-img {
  width: 72px;
  height: auto;
}

/* Inputs */
.input-group-text {
  background-color: #fff;
}

/* Footer */
footer a:hover {
  text-decoration: underline;
}

/* Arrière-plan immersif */
.login-page {
    background: linear-gradient(135deg, #2c4263 0%, #1a2a44 100%);
    min-height: 100vh;
}

/* Carte de connexion élégante */
.login-card {
    border: none;
    border-radius: 16px;
    width: 100%;
    max-width: 420px;
    background-color: #ffffff;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

/* Style du Logo */
.logo-img {
    height: 60px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

/* Inputs Premium */
.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 0.5rem;
}

.input-group-text {
    background-color: #f8fafc;
    border-right: none;
    color: #94a3b8;
    border-radius: 10px 0 0 10px;
}

.form-control-modern {
    border-left: none;
    border-radius: 0 10px 10px 0;
    padding: 0.75rem 1rem;
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    transition: all 0.3s;
}

.form-control-modern:focus {
    background-color: #fff;
    border-color: #f0ad4e;
    box-shadow: none;
}

/* Bouton Nucleus Orange */
.btn-login {
    background: linear-gradient(135deg, #f0ad4e 0%, #ec971f 100%);
    border: none;
    border-radius: 10px;
    color: white;
    font-weight: 700;
    letter-spacing: 0.5px;
    padding: 12px;
    transition: all 0.3s;
    box-shadow: 0 4px 12px rgba(240, 173, 78, 0.3);
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(240, 173, 78, 0.4);
    color: white;
}

/* Footer de connexion */
.login-footer {
    background: transparent !important;
    border: none !important;
    color: rgba(255,255,255,0.6) !important;
}