/* ==========================================================================
   CONNEXION — Design system institutionnel ULN
   Chargé après bootstrap.min.css : ne modifie pas le HTML/PHP existant,
   seulement l'habillage visuel et les micro-interactions.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --primary:#4F46E5;
  --primary-dark:#3730A3;
  --primary-50:#EEF2FF;
  --primary-100:#E0E7FF;
  --background:#F8FAFC;
  --surface:#FFFFFF;
  --text:#0F172A;
  --muted:#64748B;
  --muted-light:#94A3B8;
  --border:#E2E8F0;
  --success:#10B981;
  --success-50:#ECFDF5;
  --danger:#EF4444;
  --danger-50:#FEF2F2;
  --radius-sm:8px;
  --radius:10px;
  --radius-lg:20px;
  --shadow:0 1px 3px rgba(15,23,42,.06);
  --shadow-lg:0 24px 60px rgba(15,23,42,.16);
  --ease:cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box;}

html,body{height:100%;}

body{
  margin:0;
  background:var(--background);
  color:var(--text);
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
}

a{color:var(--primary); text-decoration:none;}
a:hover{color:var(--primary-dark);}

.login-focus:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
}

/* ==========================================================================
   SHELL — deux colonnes plein écran
   ========================================================================== */
.login-shell{
  min-height:100vh;
  display:grid;
  grid-template-columns:1fr 1fr;
}

/* ==========================================================================
   COLONNE GAUCHE — Identité institutionnelle
   ========================================================================== */
.login-brand{
  position:relative;
  background:
    radial-gradient(1100px 700px at 15% 10%, rgba(79,70,229,.16), transparent 60%),
    radial-gradient(900px 600px at 85% 90%, rgba(55,48,163,.14), transparent 55%),
    var(--text);
  color:#fff;
  padding:56px 64px;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  overflow:hidden;
}

.login-brand::before{
  /* Grille institutionnelle discrète, façon plan / structure académique */
  content:'';
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(circle at 30% 20%, black, transparent 75%);
  pointer-events:none;
}

.login-brand-top{position:relative; z-index:1;}

.login-logo-row{
  display:flex; align-items:center; gap:12px;
  margin-bottom:56px;
}
.login-logo-badge{
  width:46px; height:46px; border-radius:12px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  display:flex; align-items:center; justify-content:center;
  overflow:hidden; flex-shrink:0;
}
.login-logo-badge img{width:100%; height:100%; object-fit:contain;}
.login-logo-badge i{font-size:22px; color:#fff;}
.login-logo-text{line-height:1.25;}
.login-logo-text strong{display:block; font-size:15px; font-weight:700; letter-spacing:.2px;}
.login-logo-text span{display:block; font-size:11.5px; color:rgba(255,255,255,.55); font-weight:500;}

.login-brand-title{
  font-size:32px; font-weight:800; letter-spacing:-.5px; line-height:1.18;
  max-width:420px; margin:0 0 16px;
}
.login-brand-title em{color:#A5B4FC; font-style:normal;}

.login-brand-text{
  font-size:15px; line-height:1.6; color:rgba(255,255,255,.68);
  max-width:400px; margin:0;
}

.login-brand-stats{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:48px;
}
.login-stat{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius);
  padding:14px 16px;
}
.login-stat i{font-size:16px; color:#A5B4FC; margin-bottom:8px; display:block;}
.login-stat-label{font-size:11.5px; color:rgba(255,255,255,.6); font-weight:600;}

.login-brand-bottom{
  position:relative; z-index:1;
  font-size:12px; color:rgba(255,255,255,.4);
  display:flex; align-items:center; gap:8px;
}

/* ==========================================================================
   COLONNE DROITE — Formulaire
   ========================================================================== */
.login-form-side{
  display:flex; align-items:center; justify-content:center;
  padding:48px 32px;
  background:var(--background);
}

.login-form-wrap{
  width:100%;
  max-width:400px;
}

.login-form-mobile-logo{display:none;}

.login-title{
  font-size:26px; font-weight:800; letter-spacing:-.3px; color:var(--text);
  margin:0 0 4px;
}
.login-subtitle{
  font-size:14.5px; color:var(--muted);
  margin:0 0 32px;
}

/* Alerte d'erreur */
.login-alert{
  display:flex; align-items:flex-start; gap:10px;
  background:var(--danger-50);
  border:1px solid #FBD2D2;
  color:#B42318;
  border-radius:var(--radius-sm);
  padding:12px 14px;
  font-size:13.5px;
  margin-bottom:22px;
}
.login-alert i{font-size:16px; margin-top:1px; flex-shrink:0;}
.login-alert .login-alert-close{
  margin-left:auto; background:none; border:none; color:#B42318; opacity:.6;
  cursor:pointer; font-size:14px; line-height:1; padding:2px;
}
.login-alert .login-alert-close:hover{opacity:1;}

/* Champs de formulaire */
.login-field{margin-bottom:18px;}
.login-label{
  display:block; font-size:13px; font-weight:600; color:var(--text);
  margin-bottom:7px;
}
.login-input-wrap{position:relative; display:flex; align-items:center;}
.login-input-icon{
  position:absolute; left:14px; color:var(--muted-light); font-size:15px;
  pointer-events:none; transition:color .15s var(--ease);
}
.login-input{
  width:100%;
  height:48px;
  padding:0 14px 0 42px;
  border:1.5px solid var(--border);
  border-radius:var(--radius);
  font-size:14.5px;
  color:var(--text);
  background:var(--surface);
  transition:border-color .15s var(--ease), box-shadow .15s var(--ease);
}
.login-input::placeholder{color:var(--muted-light);}
.login-input:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px var(--primary-50);
}
.login-input:focus ~ .login-input-icon,
.login-input-wrap:focus-within .login-input-icon{color:var(--primary);}

.login-input.has-toggle{padding-right:44px;}
.login-toggle-eye{
  position:absolute; right:6px;
  width:34px; height:34px;
  display:flex; align-items:center; justify-content:center;
  background:none; border:none; border-radius:8px;
  color:var(--muted-light); cursor:pointer;
  transition:color .15s var(--ease), background .15s var(--ease);
}
.login-toggle-eye:hover{color:var(--primary); background:var(--primary-50);}

/* Bouton de connexion */
.login-submit{
  width:100%;
  height:48px;
  margin-top:6px;
  border:none;
  border-radius:var(--radius);
  background:var(--primary);
  color:#fff;
  font-size:14.5px;
  font-weight:700;
  letter-spacing:.1px;
  display:flex; align-items:center; justify-content:center; gap:8px;
  cursor:pointer;
  box-shadow:0 1px 2px rgba(79,70,229,.1);
  transition:background .15s var(--ease), transform .15s var(--ease), box-shadow .15s var(--ease);
}
.login-submit:hover{
  background:var(--primary-dark);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(79,70,229,.28);
}
.login-submit:active{transform:translateY(0);}
.login-submit:disabled{opacity:.75; cursor:default; transform:none;}
.login-submit .spinner-border{width:16px; height:16px; border-width:2px;}

/* Liens secondaires */
.login-links{
  display:flex; align-items:center; justify-content:space-between;
  margin-top:18px;
}
.login-back-link{
  font-size:13px; color:var(--muted); font-weight:500;
  display:inline-flex; align-items:center; gap:6px;
}
.login-back-link:hover{color:var(--primary);}

/* Bandeau sécurité */
.login-security{
  display:flex; align-items:center; justify-content:center; gap:6px;
  margin-top:26px;
  font-size:12px; color:var(--muted-light); font-weight:500;
}
.login-security i{color:var(--success); font-size:13px;}

/* Footer */
.login-footer{
  margin-top:34px;
  text-align:center;
  font-size:11.5px;
  color:var(--muted-light);
  line-height:1.6;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:900px){
  .login-shell{grid-template-columns:1fr;}
  .login-brand{display:none;}
  .login-form-side{padding:40px 20px;}
  .login-form-mobile-logo{
    display:flex; align-items:center; gap:12px;
    margin-bottom:28px;
  }
  .login-form-mobile-logo .login-logo-badge{
    background:var(--primary-50); border:1px solid var(--primary-100);
  }
  .login-form-mobile-logo .login-logo-badge i{color:var(--primary);}
  .login-form-mobile-logo strong{color:var(--text); display:block; font-size:14.5px; font-weight:700;}
  .login-form-mobile-logo span{color:var(--muted); display:block; font-size:11.5px;}
}

@media (max-width:420px){
  .login-title{font-size:23px;}
}