/* ==========================================================================
   CONFIGURAÇÕES GERAIS E VARIÁVEIS
   ========================================================================== */
:root {
    /* Cores do Painel do Integrador (Escuro e Moderno) */
    --app-bg: #0b0f19;
    --panel-bg: #111827;
    --card-bg: #1f2937;
    --border-color: #374151;
    --text-main: #f9fafb;
    --text-muted: #9ca3af;
    --primary: #f59e0b; /* Âmbar Solar */
    --primary-hover: #d97706;
    --secondary: #4b5563;
    --secondary-hover: #374151;
    --danger: #ef4444;
    --success: #10b981;
    
    /* Fontes */
    --font-ui: 'Outfit', sans-serif;
    --font-doc: 'Plus Jakarta Sans', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-ui);
    background-color: var(--app-bg);
    color: var(--text-main);
    overflow-x: hidden;
    height: 100vh;
}

/* ==========================================================================
   LAYOUT DO APLICATIVIVO (INTEGRADOR)
   ========================================================================== */
.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
.app-header {
    background-color: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 100;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.solar-icon {
    color: var(--primary);
    filter: drop-shadow(0 0 8px rgba(245, 158, 11, 0.4));
    animation: rotate-slow 20s linear infinite;
}

@keyframes rotate-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.header-logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, #ffffff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-actions {
    display: flex;
    gap: 12px;
}

/* Botões Generais */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.875rem;
    padding: 10px 18px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: #0b0f19;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.2);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(245, 158, 11, 0.3);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-secondary {
    background-color: var(--secondary);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

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

/* Navegação Mobile por Abas */
.mobile-tabs {
    display: none;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--panel-bg);
}

.tab-btn {
    flex: 1;
    padding: 14px 0;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}

.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
    background-color: rgba(245, 158, 11, 0.05);
}

/* Conteúdo Principal */
.main-content {
    flex: 1;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    overflow: hidden;
}

.panel-section {
    height: 100%;
    overflow-y: auto;
}

/* ==========================================================================
   PAINEL DO FORMULÁRIO (INTEGRADOR)
   ========================================================================== */
.form-panel {
    background-color: var(--panel-bg);
    padding: 24px;
    border-right: 1px solid var(--border-color);
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.form-panel::-webkit-scrollbar {
    width: 6px;
}

.form-panel::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 3px;
}

.form-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: border-color 0.2s;
}

.form-card:focus-within {
    border-color: rgba(245, 158, 11, 0.5);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.card-num {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 800;
    padding: 4px 8px;
    border-radius: 6px;
}

.card-header h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.input-group.full-width {
    grid-column: span 2;
}

.input-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-group input {
    background-color: rgba(11, 15, 25, 0.6);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 12px 16px;
    border-radius: 10px;
    font-family: var(--font-ui);
    font-size: 0.95rem;
    outline: none;
    transition: all 0.2s;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
}

.input-group input:focus {
    border-color: var(--primary);
    background-color: rgba(11, 15, 25, 0.9);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* Área de Upload de Foto */
.photo-upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    position: relative;
    cursor: pointer;
    background-color: rgba(11, 15, 25, 0.3);
    transition: all 0.2s;
}

.photo-upload-zone:hover {
    border-color: var(--primary);
    background-color: rgba(245, 158, 11, 0.02);
}

.file-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.upload-icon {
    color: var(--text-muted);
    margin-bottom: 4px;
    transition: color 0.2s;
}

.photo-upload-zone:hover .upload-icon {
    color: var(--primary);
}

.upload-prompt span {
    font-size: 0.9rem;
    font-weight: 600;
}

.upload-sub {
    font-size: 0.75rem;
    color: var(--text-muted) !important;
}

/* Previsualização da Foto no Formulário */
.photo-preview-container {
    position: relative;
    width: 100%;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 16 / 9;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

.photo-preview-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.btn-remove {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(239, 68, 68, 0.9);
    color: white;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background-color 0.2s;
    z-index: 10;
}

.btn-remove:hover {
    background-color: var(--danger);
}

.app-dev-footer {
    text-align: center;
    margin-top: 45px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 0.85rem;
    font-family: var(--font-ui);
}

.app-dev-footer strong {
    color: var(--text-main);
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   PAINEL DE VISUALIZAÇÃO E CONTAINER DO PDF (A4 PREVIEW)
   ========================================================================== */
.preview-panel {
    background-color: #1e2530;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 30px 15px;
    overflow-y: auto;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.preview-viewport {
    width: calc(210mm * var(--preview-scale, 1));
    height: calc((296mm * 2 + 20px) * var(--preview-scale, 1));
    overflow: hidden;
    transition: all 0.15s ease-out;
    margin: 0 auto;
    flex-shrink: 0;
}

.document-scaler {
    width: 210mm;
    height: calc(296mm * 2 + 20px);
    transform: scale(var(--preview-scale, 1));
    transform-origin: top left;
}

.proposal-document {
    background-color: transparent;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 210mm;
}

/* Páginas Individuais do PDF */
.pdf-page {
    background-color: #ffffff;
    color: #1e293b;
    width: 210mm;
    height: 296mm; /* 296mm (1mm de margem de segurança) evita estouro de 0.5px e quebras de página em branco no html2pdf */
    padding: 20mm 18mm 18mm 18mm;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
    font-family: var(--font-doc);
}

.pdf-page:not(:last-child) {
    page-break-after: always !important;
}

/* Linha Decorativa do Topo */
.pdf-page::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(to right, #1e3a8a, #3b82f6, #f59e0b);
}

/* Cabeçalho do PDF */
.pdf-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid #f1f5f9;
    padding-bottom: 16px;
    margin-bottom: 20px;
}

.header-logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-symbol {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    width: 46px;
    height: 46px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: var(--font-ui);
    font-size: 1.1rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.02em;
}

.logo-sub {
    font-size: 0.7rem;
    font-weight: 600;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.proposal-doc-title {
    text-align: right;
}

.proposal-doc-title h1 {
    font-family: var(--font-ui);
    font-size: 1.3rem;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.doc-date {
    font-size: 0.8rem;
    font-weight: 600;
    color: #64748b;
}

/* Seções Internas do PDF */
.doc-section {
    margin-bottom: 24px;
}

.section-title {
    font-family: var(--font-ui);
    font-size: 0.95rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #1e3a8a;
    border-left: 4px solid #f59e0b;
    padding-left: 10px;
    margin-bottom: 14px;
}

/* Card do Cliente */
.client-card {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 16px;
    display: grid;
    grid-template-columns: 1.2fr 1fr 0.8fr;
    gap: 16px;
}

.client-info-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.info-label {
    font-size: 0.65rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-val {
    font-size: 0.85rem;
    font-weight: 700;
    color: #0f172a;
}

/* Foto do Telhado */
.roof-section {
    flex: 1; /* Estica para ocupar espaço livre na página 1 */
    display: flex;
    flex-direction: column;
}

.roof-photo-frame {
    flex: 1;
    min-height: 180px;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    overflow: hidden;
    background-color: #f8fafc;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.roof-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    text-align: center;
    color: #64748b;
}

.roof-placeholder p {
    font-size: 0.8rem;
    max-width: 250px;
    line-height: 1.4;
}

.roof-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Grid de Visão Geral Técnica (Cards) */
.tech-cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.tech-card {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: border-color 0.2s;
}

.tech-card-icon {
    background-color: rgba(245, 158, 11, 0.08);
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.card-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 4px;
}

.card-val {
    font-size: 0.85rem;
    color: #0f172a;
}

.card-val strong {
    font-family: var(--font-ui);
    font-size: 1.15rem;
    font-weight: 800;
    color: #1e3a8a;
}

/* Tabela de Equipamentos (Página 2) */
.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 8px;
}

.specs-table th {
    background-color: #0f172a;
    color: #ffffff;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 10px 14px;
    text-align: left;
}

.specs-table th:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.specs-table th:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

.specs-table td {
    padding: 12px 14px;
    border-bottom: 1px solid #e2e8f0;
    font-size: 0.8rem;
    line-height: 1.4;
    color: #334155;
    vertical-align: middle;
}

.item-name-cell {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.item-name-cell strong {
    color: #0f172a;
    font-size: 0.85rem;
}

.item-desc {
    font-size: 0.7rem;
    color: #64748b;
}

.text-center {
    text-align: center;
}

/* Área Financeira (Precificação e Pagamento) */
.pricing-cards-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.price-main-card {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #ffffff;
    border-radius: 12px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
}

.price-label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: #f59e0b;
    margin-bottom: 4px;
}

.price-val {
    font-family: var(--font-ui);
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
    color: #ffffff;
}

.price-details {
    font-size: 0.65rem;
    color: #94a3b8;
    line-height: 1.4;
}

.payment-options-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.payment-option {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
}

.payment-option.highlight {
    border-color: rgba(245, 158, 11, 0.4);
    background-color: rgba(245, 158, 11, 0.02);
}

.pay-title {
    font-size: 0.65rem;
    font-weight: 700;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin-bottom: 2px;
}

.pay-value {
    font-family: var(--font-ui);
    font-size: 1.05rem;
    font-weight: 800;
    color: #0f172a;
}

.payment-option.highlight .pay-value {
    color: #d97706;
}

.pay-desc {
    font-size: 0.65rem;
    color: #64748b;
}

/* Seção de Garantias */
.warranties-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.warranty-item {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.w-icon {
    background-color: #e2e8f0;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.warranty-item strong {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    color: #0f172a;
    margin-bottom: 2px;
}

.warranty-item span {
    font-size: 0.72rem;
    color: #475569;
}

/* Assinaturas no PDF */
.footer-signatures {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: auto; /* Joga as assinaturas para o final absoluto da página 2 */
    padding-top: 30px;
}

.signature-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.sig-line {
    width: 100%;
    height: 1px;
    background-color: #cbd5e1;
    margin-bottom: 8px;
}

.sig-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: #0f172a;
}

.sig-contact {
    font-size: 0.65rem;
    color: #64748b;
    margin-bottom: 4px;
}

.sig-label {
    font-size: 0.65rem;
    font-weight: 600;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   RESPONSIVIDADE (MOBILE & DESKTOP)
   ========================================================================== */

/* Telas médias e grandes (Desktop) */
@media (min-width: 1024px) {
    .main-content {
        grid-template-columns: 460px 1fr; /* Largura fixa para preenchimento, resto para preview */
    }
}

@media (min-width: 1200px) {
    .main-content {
        grid-template-columns: 480px 1fr;
    }
}

/* Telas pequenas (Celulares e Tablets) */
@media (max-width: 1023px) {
    .mobile-tabs {
        display: flex;
    }

    .main-content {
        grid-template-columns: 1fr;
    }

    /* Oculta/Exibe painéis baseado na aba ativa */
    .panel-section {
        display: none;
        height: calc(100vh - 110px); /* Desconta header e tabs */
    }

    .panel-section.active {
        display: block;
    }

    .form-panel {
        border-right: none;
        padding: 16px;
    }

    /* O preview-panel rola o viewport escalado pelo JS */
    .preview-panel {
        padding: 16px;
        overflow-y: auto;
        overflow-x: auto;
        justify-content: center;
        align-items: flex-start;
    }
}

@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    .input-group.full-width {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .app-header {
        padding: 12px 16px;
    }
    .header-logo h1 {
        font-size: 1.1rem;
    }
    .btn {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
}

/* ==========================================================================
   CSS DE IMPRESSÃO (CONFIGURAÇÕES DO PDF)
   ========================================================================== */
@media print {
    body, html {
        background-color: #ffffff;
        color: #1e293b;
        width: 210mm;
        height: 297mm;
        overflow: visible;
    }

    /* Ocultar elementos do painel de administração */
    .app-header, 
    .mobile-tabs, 
    .form-panel, 
    .preview-panel::-webkit-scrollbar,
    .btn-remove,
    .photo-upload-zone input {
        display: none !important;
    }

    .app-container,
    .main-content,
    .preview-panel,
    .pdf-scroll-outer {
        display: block !important;
        overflow: visible !important;
        width: 100% !important;
        height: auto !important;
        padding: 0 !important;
        margin: 0 !important;
        background: transparent !important;
    }

    .proposal-document {
        transform: none !important;
        margin: 0 !important;
        width: 210mm !important;
        gap: 0 !important;
    }

    .pdf-page {
        box-shadow: none !important;
        border: none !important;
        margin: 0 !important;
        padding: 20mm 18mm 18mm 18mm !important;
        page-break-inside: avoid !important;
        height: 296mm !important;
        width: 210mm !important;
        box-sizing: border-box !important;
    }

    .pdf-page:not(:last-child) {
        page-break-after: always !important;
    }

    /* Forçar cores de fundo em impressões PDF */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
}

/* Forçar renderização offscreen em abas ocultas durante a geração do PDF (Mobile) */
@media (max-width: 1023px) {
    body.generating-pdf #tab-preview {
        display: block !important;
        position: absolute !important;
        left: -9999px !important;
        top: -9999px !important;
        visibility: visible !important;
        height: auto !important;
        width: auto !important;
        z-index: -9999 !important;
    }
}

/* Otimizações aplicadas ao documento no momento da captura do PDF */
body.generating-pdf .proposal-document {
    gap: 0 !important;
}

body.generating-pdf .pdf-page {
    box-shadow: none !important;
    margin: 0 !important;
}