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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #20150d 0%, #ffe8ae 100%);
    min-height: 100vh;
    color: #333;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    text-align: center;
    margin-bottom: 40px;
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.book-cover {
    width: 100%;
    max-width: 600px; /* mantém limite para telas grandes */
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.title {
    font-size: 2.5rem;
    font-weight: bold;
    color: #8B4513;
    margin-bottom: 10px;
}

.subtitle {
    font-size: 1.2rem;
    color: #718096;
    margin-bottom: 15px;
}

.chapter-info {
    background: linear-gradient(135deg, #DAA520 0%, #8B4513 100%);
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    display: inline-block;
    font-weight: 600;
    font-size: 1.1rem;
}

.form-container {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.form-title {
    font-size: 1.8rem;
    color: #8B4513;
    margin-bottom: 20px;
    text-align: center;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #8B4513;
}

.form-input {
    width: 100%;
    padding: 15px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.form-input:focus {
    outline: none;
    border-color: #DAA520;
    background: white;
    box-shadow: 0 0 0 3px rgba(218, 165, 32, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    font-family: inherit;
}

.char-counter {
    text-align: right;
    font-size: 0.9rem;
    color: #718096;
    margin-top: 5px;
}

.char-counter.warning {
    color: #f56565;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, #DAA520 0%, #8B4513 100%);
    color: white;
    border: none;
    padding: 18px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(218, 165, 32, 0.3);
}

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

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

.message {
    padding: 15px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-weight: 500;
    text-align: center;
}

.message.success {
    background: #c6f6d5;
    color: #22543d;
    border: 1px solid #9ae6b4;
}

.message.error {
    background: #fed7d7;
    color: #742a2a;
    border: 1px solid #fc8181;
}

.footer {
    text-align: center;
    color: #000000;
    margin-top: 40px;
    opacity: 0.95;    
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 2rem;
    }
    
    .form-container, .header {
        padding: 25px;
    }
    
    .chapter-info {
        font-size: 1rem;
        padding: 12px 20px;
    }
}

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

.header, .form-container {
    animation: fadeIn 0.6s ease-out;
}

.form-container {
    animation-delay: 0.2s;
}