/* Modern Login Styles - Template Université Couleurs Claires */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

/* Variables CSS pour couleurs claires université */
:root {
    --primary-gradient: linear-gradient(135deg, #e0f2fe 0%, #b3e5fc 50%, #81d4fa 100%);
    --secondary-gradient: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --accent-color: #1976d2;
    --accent-light: #42a5f5;
    --text-primary: #263238;
    --text-secondary: #546e7a;
    --text-muted: #78909c;
    --border-color: #e1f5fe;
    --border-focus: #1976d2;
    --success-color: #4caf50;
    --error-color: #f44336;
    --warning-color: #ff9800;
    --card-bg: rgba(255, 255, 255, 0.95);
    --input-bg: #ffffff;
    --card-shadow: 0 8px 32px rgba(25, 118, 210, 0.1);
    --card-shadow-hover: 0 12px 40px rgba(25, 118, 210, 0.15);
}

/* Modern Login Body */
.modern-login-body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--primary-gradient);
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
    position: relative;
}

/* Effet de motifs géométriques en arrière-plan */
.modern-login-body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(25, 118, 210, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(66, 165, 245, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

.admin-login {
    background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 50%, #ce93d8 100%);
}

/* Login Container */
.login-container {
    width: 100%;
    max-width: 500px;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    position: relative;
    z-index: 2;
}

/* Modern Card */
.modern-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 48px 40px;
    box-shadow: var(--card-shadow);
    border: 2px solid rgba(25, 118, 210, 0.1);
    width: 100%;
    max-width: 460px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.modern-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--card-shadow-hover);
}

/* Bordure supérieure université */
.modern-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color) 0%, var(--accent-light) 100%);
    border-radius: 24px 24px 0 0;
}

.admin-card::before {
    background: linear-gradient(90deg, #7b1fa2 0%, #ab47bc 100%);
}

/* Login Header */
.login-header {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

/* Logo université */
.login-header::before {
    content: '🎓';
    font-size: 40px;
    display: block;
    margin-bottom: 12px;
    opacity: 0.8;
}

.login-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0 0 10px 0;
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.login-subtitle {
    font-size: 18px;
    font-weight: 600;
    color: var(--accent-color);
    margin: 0 0 10px 0;
    font-family: 'Poppins', sans-serif;
}

.admin-card .login-subtitle {
    color: #7b1fa2;
}

.login-description {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 0 0 6px 0;
    line-height: 1.4;
}

.login-instructor {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-muted);
    margin: 0;
    font-style: italic;
}

.login-instructor::before {
    content: '👨‍🏫 ';
    margin-right: 4px;
}

/* Modern Form */
.modern-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.modern-form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
}

.modern-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    font-family: 'Poppins', sans-serif;
}

.modern-label::after {
    content: ' *';
    color: var(--error-color);
    font-weight: 500;
}

/* CORRECTION IMPORTANTE : Inputs fonctionnels */
.modern-input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 16px;
    font-weight: 400;
    color: var(--text-primary);
    background: var(--input-bg);
    transition: all 0.3s ease;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    position: relative;
    z-index: 10; /* IMPORTANT : Assure que l'input est cliquable */
    pointer-events: auto; /* IMPORTANT : Active les événements de pointeur */
    outline: none;
}

.modern-input:hover {
    border-color: #bbdefb;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.08);
}

.modern-input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1), 0 4px 12px rgba(25, 118, 210, 0.15);
    background: #fafbff;
    transform: translateY(-1px);
}

.admin-card .modern-input:focus {
    border-color: #7b1fa2;
    box-shadow: 0 0 0 3px rgba(123, 31, 162, 0.1), 0 4px 12px rgba(123, 31, 162, 0.15);
}

.modern-input::placeholder {
    color: #90a4ae;
    font-weight: 400;
    font-style: italic;
}

/* Suppression des icônes qui bloquent la saisie */
.modern-form-group::before {
    display: none; /* IMPORTANT : Supprime les icônes qui peuvent bloquer */
}

/* Modern Button */
.modern-btn {
    width: 100%;
    padding: 18px 24px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(25, 118, 210, 0.3);
    margin-top: 12px;
    font-family: 'Poppins', sans-serif;
    letter-spacing: 0.3px;
    position: relative;
    z-index: 10;
}

.modern-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(25, 118, 210, 0.4);
    background: linear-gradient(135deg, #1565c0 0%, #1976d2 100%);
}

.modern-btn:active {
    transform: translateY(0);
    transition: transform 0.1s ease;
}

.admin-btn {
    background: linear-gradient(135deg, #7b1fa2 0%, #ab47bc 100%);
    box-shadow: 0 6px 20px rgba(123, 31, 162, 0.3);
}

.admin-btn:hover {
    box-shadow: 0 8px 25px rgba(123, 31, 162, 0.4);
    background: linear-gradient(135deg, #6a1b9a 0%, #9c27b0 100%);
}

/* Modern Error */
.modern-error {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    border: 2px solid #ef9a9a;
    color: var(--error-color);
    padding: 16px 20px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    margin-top: 16px;
    text-align: center;
    position: relative;
}

.modern-error::before {
    content: '⚠️ ';
    margin-right: 6px;
}

/* Login Footer */
.login-footer {
    text-align: center;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 2px solid #e3f2fd;
    position: relative;
}

.login-footer::before {
    content: '🔒';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 0 12px;
    font-size: 16px;
}

.security-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0 6px 0;
    font-family: 'Poppins', sans-serif;
}

.course-text {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    margin: 0;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 20px;
    }
    
    .modern-card {
        padding: 36px 28px;
        border-radius: 20px;
    }
    
    .login-title {
        font-size: 28px;
    }
    
    .login-subtitle {
        font-size: 16px;
    }
}

@media (max-width: 640px) {
    .modern-card {
        padding: 28px 20px;
        border-radius: 16px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .modern-input {
        padding: 14px 16px;
        font-size: 16px;
    }
    
    .modern-btn {
        padding: 16px 20px;
    }
}

@media (max-width: 480px) {
    .login-container {
        padding: 16px;
    }
    
    .modern-card {
        padding: 24px 16px;
    }
    
    .login-title {
        font-size: 22px;
    }
    
    .login-header::before {
        font-size: 32px;
    }
}

/* Animation d'entrée */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modern-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Animation pour les éléments du formulaire */
.modern-form-group {
    animation: fadeInUp 0.5s ease-out;
    animation-fill-mode: both;
}

.modern-form-group:nth-child(1) { animation-delay: 0.1s; }
.modern-form-group:nth-child(2) { animation-delay: 0.2s; }
.modern-form-group:nth-child(3) { animation-delay: 0.3s; }
.modern-btn { animation: fadeInUp 0.5s ease-out 0.4s both; }

/* Accessibilité */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible pour l'accessibilité */
.modern-btn:focus-visible {
    outline: 3px solid rgba(25, 118, 210, 0.5);
    outline-offset: 2px;
}

.modern-input:focus-visible {
    outline: 3px solid rgba(25, 118, 210, 0.5);
    outline-offset: 2px;
}

/* Correction pour assurer la fonctionnalité des inputs */
input[type="text"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background-clip: padding-box;
}

/* Assure que tous les éléments interactifs fonctionnent */
.modern-form * {
    pointer-events: auto;
}