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

body {
    font-family: 'Open Sans', sans-serif;
    background: linear-gradient(135deg, #00b894, #00cec9);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

header {
    background: linear-gradient(135deg, #001f4e, #0984e3);
    text-align: center;
    padding-bottom: 30px;
}

.logo {
    width: 350px;
    margin-top: 30px;
}

h1 {
    color: white;
    text-align: center;
    padding: 30px 20px;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: -25px;
}

h2 {
    color: #fff;
    text-align: center;
    font-size: 1rem;
    font-weight: normal;
}

form {
    padding: 40px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: #001f4e;
    font-weight: 700;
    font-size: 1.1rem;
}

input[type="text"],
input[type="file"],
select {
    width: 100%;
    padding: 15px;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: 'Open Sans', sans-serif;
}

input[type="text"]:focus,
select:focus {
    outline: none;
    border-color: #00b894;
    box-shadow: 0 0 0 3px rgba(0, 184, 148, 0.1);
}

input[type="file"] {
    padding: 10px;
    background: #f8f9fa;
}

select {
    cursor: pointer;
}

button {
    width: 100%;
    background: linear-gradient(135deg, #00b894, #00cec9);
    color: white;
    border: none;
    padding: 18px;
    border-radius: 8px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 184, 148, 0.3);
}

button:active {
    transform: translateY(0);
}

#preview-container {
    padding: 40px;
    background: #f8f9fa;
    border-top: 1px solid #eee;
    text-align: center;
}

#preview-container h2 {
    color: #001f4e;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

#art-preview {
    max-width: 100%;
    border: 2px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        margin: 10px;
        border-radius: 10px;
    }
    
    h1 {
        font-size: 1.5rem;
        padding: 20px;
    }
    
    form {
        padding: 20px;
    }
    
    #preview-container {
        padding: 20px;
    }
}

/* Loading state */
.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading button {
    background: #ccc;
    cursor: not-allowed;
}

/* Success message */
.success-message {
    background: #d4edda;
    color: #155724;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px solid #c3e6cb;
    text-align: center;
    font-weight: 700;
}

/* Error message */
.error-message {
    background: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: 8px;
    margin: 20px 0;
    border: 1px solid #f5c6cb;
    text-align: center;
    font-weight: 700;
}