/* ============================================= */
/* ========== TEMA MODERNO AZUL DARK ========== */
/* ============================================= */

/* 1. Definição das Cores e Variáveis Globais */
:root {
    --bg-dark: #1a202c;
    --bg-card: #2d3748;
    --border-color: #4a5568;
    --accent-blue: #4299e1;
    --success: #38a169;
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --white-paper: #ffffff;
    --black-text: #111111;
    --border-radius: 6px;
    --shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* 2. Estilos de Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
}

/* 3. Estrutura Principal e Cabeçalho */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.header-welcome h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

.header-welcome p {
    color: var(--text-secondary);
}

.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px;
}

.two-columns {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.form-column {
    flex: 1;
    min-width: 450px;
}

.preview-column {
    flex: 1.5;
    position: sticky;
    top: 20px;
}

/* 4. Estilo dos Cards e Formulários */
.card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 500;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-control {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
    flex: 1;
}

label {
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="file"] {
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.2s ease;
}

input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.4);
}

input[type="file"] {
    padding: 7px;
}

.form-control small {
    margin-top: 5px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 5. Estilo dos Botões */
.btn {
    padding: 10px 20px;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary { background-color: var(--accent-blue); color: #fff; }
.btn-primary:hover { background-color: #2b6cb0; }
.btn-success { background-color: var(--success); color: #fff; }
.btn-success:hover { background-color: #2f855a; }
.btn-secondary { background-color: #4a5568; color: var(--text-primary); }
.btn-secondary:hover { background-color: #2d3748; }
.btn-outline { background-color: transparent; color: var(--text-secondary); border: 1px solid var(--border-color); }
.btn-outline:hover { background-color: var(--bg-card); color: var(--text-primary); border-color: var(--accent-blue); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-full { width: 100%; }
.text-center { display: block; text-align: center; width: 100%; margin-top: 8px; }


/* 6. Estilo da Área de Preview */
.preview-container {
    background-color: var(--bg-card);
    border-color: var(--border-color);
}
.preview-placeholder {
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
}
.preview-subtitle {
    margin-top: 20px;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.preview-subtitle:first-of-type {
    margin-top: 0;
}

/* Estilo da CAPA do carnê no preview */
.carnet-cover {
    background-color: var(--white-paper);
    color: var(--black-text);
    padding: 20px;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
    margin-bottom: 20px;
    font-size: 10pt;
}
.cover-header {
    text-align: center;
    font-size: 14pt;
    font-weight: 600;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #ddd;
}
.cover-section {
    margin-bottom: 15px;
}
.cover-section:last-child {
    margin-bottom: 0;
}
.cover-section h4 {
    font-size: 8pt;
    font-weight: 600;
    color: #555;
    text-transform: uppercase;
    margin-bottom: 4px;
}
.cover-section p {
    font-size: 10pt;
    line-height: 1.5;
}

/* Estilo do CANHOTO do carnê (no preview e no PDF) */
.carnet-stub {
    display: flex;
    border: 1px solid #b0b0b0;
    border-radius: var(--border-radius);
    font-size: 9pt;
    overflow: hidden;
    background-color: var(--white-paper);
    color: var(--black-text);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}
.stub-main, .stub-receipt {
    padding: 12px;
    width: 50%;
}
.stub-receipt {
    border-left: 2px dashed #b0b0b0;
}
.stub-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 8px;
}
.stub-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11pt;
}
.receipt-box {
    border: 2px solid var(--black-text);
    padding: 2px 8px;
    font-weight: bold;
    font-size: 10pt;
    text-align: center;
}
.stub-field {
    margin-bottom: 10px;
}
.stub-field label {
    display: block;
    font-size: 7pt;
    color: #555;
    margin-bottom: 2px;
}
.stub-field span {
    display: block;
    min-height: 18px;
    font-weight: 500;
    border-bottom: 1px solid #ccc;
    padding-left: 4px;
}
.stub-field-group {
    display: flex;
    gap: 20px;
    margin-top: 15px;
}
.stub-field-group .stub-field {
    flex: 1;
}

/* 7. Estilo da Área de Geração para PDF */
.preview-page-a4 {
    background: var(--white-paper);
    width: 210mm;
    min-height: 297mm;
    padding: 10mm;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr; /* Gera uma coluna para facilitar o corte */
    gap: 15px 10px;
    align-content: start;
    color: var(--black-text);
}

/* 8. Responsividade */
@media (max-width: 900px) {
    .two-columns {
        flex-direction: column;
    }
    .form-column {
        min-width: 100%;
    }
    .preview-column {
        position: static;
        margin-top: 20px;
    }
    .header-content {
        flex-direction: column;
        align-items: flex-start;
        height: auto;
        padding: 15px;
    }
}