/* Styles généraux */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* Styles pour la page de connexion */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.login-form {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 15px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
    z-index: 2;
    position: relative;
}

.login-form h2 {
    color: #333;
    margin-bottom: 10px;
    font-size: 2.2em;
}

.subtitle {
    color: #666;
    margin-bottom: 30px;
    font-size: 1.1em;
}

.input-group {
    margin-bottom: 20px;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 5px;
    color: #333;
    font-weight: 600;
}

.input-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid #e1e1e1;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.login-btn:hover {
    transform: translateY(-2px);
}

.error-message {
    color: #e74c3c;
    margin-top: 15px;
    padding: 10px;
    border-radius: 5px;
    background: rgba(231, 76, 60, 0.1);
    display: none;
}

.error-message.show {
    display: block;
}

/* Animation de fond */
.background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.floating-icon {
    position: absolute;
    font-size: 2em;
    opacity: 0.1;
    animation: float 20s infinite linear;
}

.floating-icon:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-icon:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: 5s;
}

.floating-icon:nth-child(3) {
    top: 80%;
    left: 20%;
    animation-delay: 10s;
}

.floating-icon:nth-child(4) {
    top: 40%;
    left: 70%;
    animation-delay: 15s;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
    100% {
        transform: translateY(0px) rotate(360deg);
    }
}

/* Responsive */
@media (max-width: 480px) {
    .login-form {
        margin: 20px;
        padding: 30px 20px;
    }
    
    .login-form h2 {
        font-size: 1.8em;
    }
}