/* Paleta de Cores e Estilos Globais */
:root {
    --primary-color: #1a56db;       /* Azul vibrante para botões e títulos */
    --secondary-color: #059669;     /* Verde para o botão de download */
    --background-color: #f8fafc;    /* Fundo cinza/azulado bem claro */
    --card-background: #ffffff;     /* Fundo branco para as seções */
    --border-color: #e2e8f0;        /* Cor de borda suave */
    --text-color: #1f2937;          /* Cor de texto escuro */
    --placeholder-color: #9ca3af;   /* Cor para o texto de placeholder */
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Estilos para o Cabeçalho (Header) */
.main-header {
    background-color: var(--card-background);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 20px 40px;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 0;
}

.main-nav a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    margin-left: 25px;
    transition: color 0.3s, border-bottom 0.3s;
}

.main-nav a:hover {
    color: var(--primary-color);
}

.main-nav a.active {
    font-weight: bold;
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

/* Estilos para o Conteúdo Principal */
.main-content {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 30px;
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    flex-grow: 1;
}

.generator-options,
.qr-code-display,
.content-section {
    background-color: var(--card-background);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.generator-options {
    flex: 2;
    min-width: 350px;
}

.qr-code-display {
    flex: 1;
    min-width: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.page-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

.content-section {
    max-width: 900px;
    width: 100%;
}

.page-title {
    font-size: 2.2rem;
    color: var(--primary-color);
    margin: 0 0 5px;
    text-align: center;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--placeholder-color);
    margin: 0 0 30px;
    text-align: center;
}

.section-title {
    font-size: 1.4rem;
    color: var(--text-color);
    margin-top: 30px;
    margin-bottom: 15px;
}

/* Estilos para os Cartões de Opção (index.html) */
.content-type-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
    justify-content: center;
}

.card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    background-color: var(--card-background);
    flex-basis: 120px;
    min-width: 100px;
    text-align: center;
}

.card:hover {
    border-color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.08);
}

.card.active {
    border-color: var(--primary-color);
    background-color: #eff6ff;
    box-shadow: 0 0 0 3px var(--primary-color), 0 5px 10px rgba(0, 0, 0, 0.1);
}

.card img {
    width: 40px;
    height: 40px;
    margin-bottom: 8px;
}

.card .card-title {
    font-size: 0.9rem;
    font-weight: bold;
    margin: 0;
}

.card .card-description {
    font-size: 0.75rem;
    color: var(--placeholder-color);
    margin: 0;
}

/* Estilos para os Campos de Input */
.input-fields-container input,
.input-fields-container textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
    box-sizing: border-box;
    margin-bottom: 15px;
}

.input-fields-container input:focus,
.input-fields-container textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 86, 219, 0.2);
}

/* Estilos para a Seção de Personalização (index.html) */
.customization-options {
    margin-top: 20px;
}

.color-picker-container {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.color-picker-container label {
    font-weight: bold;
}

.color-picker-wrapper {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.color-picker-wrapper:hover {
    border-color: var(--primary-color);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.08);
}

.color-picker-wrapper input[type="color"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 100%;
    height: 100%;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
}

.customization-subtitle {
    font-size: 1.1rem;
    margin-top: 25px;
    margin-bottom: 15px;
}

.texture-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.texture-card {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
    overflow: hidden;
    padding: 10px;
}

.texture-card svg {
    width: 40px;
    height: 40px;
    display: block;
    margin: 0 auto;
}

.texture-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.08);
}

.texture-card.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-color), 0 5px 10px rgba(0, 0, 0, 0.1);
}

/* Estilos para o upload de logo */
.logo-upload-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    gap: 15px;
}

.logo-preview {
    width: 120px;
    height: 120px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    transition: box-shadow 0.3s, border-color 0.3s;
}

.logo-preview:hover {
    border-color: var(--primary-color);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.08);
}

.logo-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.placeholder-text {
    color: var(--placeholder-color);
    font-size: 1rem;
    text-align: center;
    padding: 10px;
}


/* Caixa de pré-visualização do QR code com dimensões flexíveis */
.qr-code-box {
    background-color: var(--card-background);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    max-width: 320px;
    width: 100%;
    margin-bottom: 20px;
    position: relative;
    min-height: 280px;
    /* Removido overflow: hidden para evitar cortes */
}

/* Placeholder centralizado na caixa */
#qr-code-placeholder {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--placeholder-color);
    font-size: 1rem;
    padding: 40px 20px;
}


/* Container do QR code centralizado */
#qr-code {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

/* Garantir que imagens e canvas do QR code sejam responsivos */
.qr-code-box img,
.qr-code-box canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.qr-description {
    font-size: 0.9rem;
    color: var(--placeholder-color);
    text-align: center;
    margin-top: 10px;
}

/* Estilos para os Botões */
.action-button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: bold;
    transition: background-color 0.3s, transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: white;
    margin-bottom: 10px;
    text-align: center;
    display: block;
    width: 100%;
}

.primary {
    background-color: var(--primary-color);
}

.promary:hover
.primary:focus {
    background-color: #113e9a;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.download {
    background-color: var(--secondary-color);
}

.download:hover
.download:focus {
    background-color: #047857;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

/* Estilos Específicos para a Página Sobre (sobre.html) */
.about-page .content-section {
    max-width: 800px;
}

.about-page .main-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 15px;
    text-align: justify;
}

/* Estilos Específicos para a Página Recursos (recursos.html) */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    text-align: center;
}

.feature-card {
    background-color: var(--background-color);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.feature-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin: 0 0 10px;
}

.feature-card p {
    font-size: 0.9rem;
    color: var(--text-color);
    line-height: 1.5;
}

/* Estilos Específicos para a Página de Contato (contato.html) */
.contact-page .content-section {
    max-width: 600px;
}

.contact-form {
    width: 100%;
    text-align: left;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 1rem;
    color: var(--text-color);
    margin-bottom: 8px;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(26, 86, 219, 0.2);
}

/* Estilos para o Rodapé (Footer) */
.main-footer {
    background-color: var(--card-background);
    color: var(--placeholder-color);
    text-align: center;
    padding: 20px;
    margin-top: auto;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

/* Responsividade */
@media (max-width: 768px) {
    .main-content {
        flex-direction: column;
        align-items: center;
        padding: 20px;
    }

    .generator-options,
    .qr-code-display,
    .content-section {
        width: 100%;
        max-width: 100%;
        padding: 20px;
    }

    .main-header {
        padding: 20px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .main-nav {
        display: flex;
        justify-content: center;
        width: 100%;
    }

    .main-nav a {
        margin: 0 10px;
    }

    .content-type-cards {
        justify-content: center;
    }
    
    .card {
        flex-basis: 100px;
        min-width: 80px;
    }

    .texture-card svg {
        width: 30px;
        height: 30px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}