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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    color: #333;
}

.container {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.login-card {
    background: white;
    border-radius: 12px;
    padding: 40px 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.welcome-title {
    font-size: 28px;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 16px;
    color: #7f8c8d;
    margin-bottom: 30px;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    width: 100%;
}

.input-group input {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    transition: border-color 0.3s ease;
    text-align: center;
    font-weight: 500;
    letter-spacing: 1px;
}

.input-group input:focus {
    outline: none;
    border-color: #667eea;
}

.input-group input::placeholder {
    color: #bdc3c7;
    letter-spacing: 2px;
}

.btn-entrar {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-entrar:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-entrar:active {
    transform: translateY(0);
}

.btn-entrar:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.error-message {
    margin-top: 15px;
    padding: 12px;
    background-color: #fee;
    color: #c33;
    border-radius: 6px;
    font-size: 14px;
    border: 1px solid #fcc;
}

.loading-message {
    margin-top: 15px;
    padding: 12px;
    color: #667eea;
    font-size: 14px;
    font-weight: 500;
}

.info-section {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    font-size: 14px;
    line-height: 1.6;
    color: #555;
    text-align: justify;
}

.footer {
    text-align: center;
    color: white;
    font-size: 12px;
    padding: 20px 0;
}

.footer p {
    margin: 5px 0;
}

.developer {
    font-size: 11px;
    opacity: 0.9;
}

/* Responsividade */
@media (max-width: 600px) {
    .login-card {
        padding: 30px 20px;
    }
    
    .welcome-title {
        font-size: 24px;
    }
    
    .subtitle {
        font-size: 14px;
    }
    
    .info-section {
        padding: 20px;
        font-size: 13px;
    }
}