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

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

.container {
    max-width: 800px;
    width: 100%;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

header .logo {
    max-width: 120px;
    height: auto;
    display: block;
}

header h1 {
    font-size: 2.5em;
    color: #667eea;
    margin: 0;
}

#diplomaForm {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    font-weight: 600;
    color: #555;
    font-size: 1em;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1em;
    font-family: inherit;
    transition: border-color 0.3s;
}

.data-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.data-container select,
.data-container input {
    flex: 1;
    min-width: 0;
}

.data-container select {
    cursor: pointer;
}

.data-container input[type="number"] {
    max-width: 100px;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 150px;
    font-family: 'Courier New', monospace;
}

.form-group small {
    color: #888;
    font-size: 0.85em;
    margin-top: -5px;
}

.btn-gerar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 1.2em;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn-gerar:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
}

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

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

.mensagem {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    display: none;
}

.mensagem.sucesso {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.mensagem.erro {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* Responsividade */
@media (max-width: 600px) {
    .container {
        padding: 20px;
    }

    header h1 {
        font-size: 2em;
    }

    .btn-gerar {
        font-size: 1em;
        padding: 12px 20px;
    }
}