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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7e8ba3 100%);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    background-color: #ffffff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 0;
    max-width: 600px;
    width: 100%;
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo-header {
    background: linear-gradient(135deg, #003366 0%, #004080 100%);
    padding: 40px 20px;
    text-align: center;
    border-bottom: 5px solid #FFD700;
}

.logo-asecargill {
    max-width: 300px;
    height: auto;
    filter: brightness(1.2);
}

.header {
    text-align: center;
    padding: 40px 40px 20px 40px;
    background: linear-gradient(to bottom, #f8f9fa 0%, #ffffff 100%);
}

.header h1 {
    color: #003366;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.header-line {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #003366, #FFD700, #003366);
    margin: 0 auto;
    border-radius: 2px;
}

#paso1, #paso2 {
    padding: 40px;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    color: #003366;
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 15px;
}

.form-group input {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 15px;
    transition: all 0.3s ease;
    background-color: #ffffff;
    color: #333333;
}

.form-group input:disabled {
    background-color: #f5f5f5;
    color: #666666;
    cursor: not-allowed;
    border-color: #d0d0d0;
}

.form-group input:focus {
    outline: none;
    border-color: #003366;
    box-shadow: 0 0 0 4px rgba(0, 51, 102, 0.1);
    transform: translateY(-2px);
}

.form-group small {
    display: block;
    margin-top: 8px;
    color: #666666;
    font-size: 13px;
    font-style: italic;
}

.btn-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #003366 0%, #004080 100%);
    color: #ffffff;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 15px;
    box-shadow: 0 4px 15px rgba(0, 51, 102, 0.3);
}

.btn-submit:hover {
    background: linear-gradient(135deg, #004080 0%, #0059b3 100%);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 51, 102, 0.4);
}

.btn-submit:active {
    transform: translateY(-1px);
}

.btn-cancel {
    width: 100%;
    padding: 16px;
    background: #ffffff;
    color: #003366;
    border: 2px solid #003366;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-cancel:hover {
    background: #003366;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 51, 102, 0.3);
}

.mensaje {
    margin: 0 40px 40px 40px;
    padding: 18px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    font-size: 15px;
}

.mensaje.show {
    opacity: 1;
    transform: translateY(0);
}

.mensaje.success {
    background: linear-gradient(135deg, #28a745 0%, #34ce57 100%);
    color: #ffffff;
    border: 2px solid #20c997;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.mensaje.error {
    background: linear-gradient(135deg, #dc3545 0%, #e74c3c 100%);
    color: #ffffff;
    border: 2px solid #c82333;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

/* Animación para inputs */
.form-group input:focus + label {
    color: #004080;
}

/* Efecto de carga */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        border-radius: 15px;
        margin: 10px;
    }
    
    .header h1 {
        font-size: 22px;
    }
    
    .logo-asecargill {
        max-width: 200px;
    }
    
    #paso1, #paso2 {
        padding: 30px 25px;
    }
    
    .mensaje {
        margin: 0 25px 30px 25px;
    }
    
    .btn-submit, .btn-cancel {
        padding: 14px;
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .logo-header {
        padding: 30px 15px;
    }
    
    .logo-asecargill {
        max-width: 150px;
    }
    
    .header h1 {
        font-size: 20px;
    }
    
    #paso1, #paso2 {
        padding: 25px 20px;
    }
}