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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1800px;
    margin: 0 auto;
    display: flex;
    gap: 20px;
    padding-right: 360px;
    /* Espaço para o painel fixo */
}

.header {
    background: white;
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    color: #667eea;
    font-size: 24px;
}

.controls {
    display: flex;
    gap: 10px;
}

.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-success {
    background: #48bb78;
    color: white;
}

.btn-success:hover {
    background: #38a169;
}

.btn-danger {
    background: #fc8181;
    color: white;
}

.btn-danger:hover {
    background: #f56565;
}

.btn-danger.active {
    background: #e53e3e;
    box-shadow: 0 0 0 3px rgba(252, 129, 129, 0.3);
}

.btn-secondary {
    background: #a0aec0;
    color: white;
}

.btn-secondary:hover:not(:disabled) {
    background: #718096;
}

.btn-secondary:disabled {
    background: #cbd5e0;
    cursor: not-allowed;
    opacity: 0.6;
}

.app-layout {
    display: flex;
    flex-direction: column;
    /* Organiza tudo verticalmente */
    min-height: 100vh;
}

.main-content-area {
    display: flex;
    /* Permite que o visualizador e o painel fiquem lado a lado */
    gap: 20px;
    /* Espaçamento entre o visualizador e o painel lateral */
    padding: 20px;
    flex-grow: 1;
    /* Ocupa o espaço restante verticalmente */
    max-width: 1400px;
    /* Limite a largura total para melhor leitura */
    margin: 0 auto;
    /* Centraliza o conteúdo principal */
}

/* Contêiner do Painel Lateral e Anúncios */
.side-panel-wrapper {
    display: flex;
    flex-direction: column;
    width: 300px;
    /* Largura fixa para o painel lateral */
    flex-shrink: 0;
    /* Impede que ele encolha */
}

/* Visualizador (Ocupa o espaço restante na linha) */
.pdf-viewer {
    flex-grow: 1;
    min-width: 0;
    /* Necessário para flexbox, para que o conteúdo não force a largura */
    /* Estilos de borda, sombra, etc., para o visualizador de PDF */
}

/* Estilos dos Anúncios */
.ad-container {
    width: 100%;
    margin-bottom: 20px;
    /* Espaço abaixo de cada anúncio */
    text-align: center;
}

/* Estilo para simular o espaço do anúncio, remova ao integrar a tag real */
.ad-placeholder {
    /* background-color: #f0f0f0;
    border: 1px dashed #ccc; */
    color: #555;
    /* padding: 15px; */
    font-size: 14px;
}

/* Banner Superior */
.ad-top .ad-placeholder {
    height: 90px;
    /* Altura padrão de um banner (ex: 728x90) */
}

/* Anúncios Laterais (Bloco) */
.ad-side-top .ad-placeholder,
.ad-side-bottom .ad-placeholder {
    height: 250px;
    /* Altura padrão de um bloco (ex: 300x250) */
}

.upload-area {
    /* Limitando a Largura */
    /* max-width: 500px; */
    width: 100%;

    /* Limitando a Altura */
    max-height: 250px;
    /* Escolha a altura máxima desejada, ex: 250px */

    /* Adicionando rolagem se o conteúdo exceder a altura máxima */
    overflow-y: auto;
    /* Garante que o usuário possa acessar o conteúdo se ele for muito longo */

    /* Para centralizar o bloco (se for um elemento de nível de bloco) */
    margin-left: auto;
    margin-right: auto;

    background: white;
    /* Reduzindo o padding vertical para a altura máxima ser mais aparente */
    padding: 20px 60px;
    /* Ajustei o padding vertical de 60px para 20px */

    border-radius: 12px;
    text-align: center;
    border: 3px dashed #667eea;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 10px;

}

.upload-area:hover {
    border-color: #5568d3;
    background: #f7fafc;
}

.upload-area.dragover {
    background: #edf2f7;
    border-color: #48bb78;
}

#file-input {
    display: none;
}

.main-content {
    display: flex;
    gap: 20px;
    flex: 1;
}

.pdf-viewer {
    flex: 1;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    display: none;
}

.side-panel {
    width: 320px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    padding: 20px;
    display: none;
    position: fixed;
    right: 20px;
    top: 140px;
    bottom: 20px;
    overflow-y: auto;
    z-index: 100;
}

.side-panel::-webkit-scrollbar {
    width: 8px;
}

.side-panel::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

.side-panel::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 10px;
}

.side-panel::-webkit-scrollbar-thumb:hover {
    background: #5568d3;
}

.side-panel h3 {
    color: #667eea;
    margin-bottom: 15px;
    font-size: 18px;
}

.control-group {
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.control-group:last-child {
    border-bottom: none;
}

.control-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 5px;
    text-transform: uppercase;
}

.control-group input,
.control-group select {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #cbd5e0;
    border-radius: 6px;
    font-size: 14px;
}

.control-group input:focus,
.control-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.control-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.control-row input {
    flex: 1;
}

.pages-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    align-items: center;
}

.page-wrapper {
    position: relative;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-radius: 8px;
    overflow: hidden;
}

.page-canvas {
    display: block;
    width: 100%;
    height: auto;
}

.text-overlay {
    position: absolute;
    background: transparent;
    border: 2px solid transparent;
    outline: none;
    cursor: move;
    padding: 2px;
    transition: all 0.2s;
    white-space: pre;
    line-height: 1;
    user-select: none;
}

.text-overlay:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: rgba(102, 126, 234, 0.5);
}

.text-overlay.selected {
    background: rgba(102, 126, 234, 0.15);
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.text-overlay.eraser-mode:hover {
    background: rgba(252, 129, 129, 0.3) !important;
    border-color: #fc8181 !important;
    cursor: crosshair;
}

.text-overlay.deleted {
    display: none !important;
}

.rectangle-shape {
    position: absolute;
    border: 2px solid transparent;
    cursor: move;
    transition: all 0.2s;
}

.rectangle-shape:hover {
    border-color: rgba(102, 126, 234, 0.5);
}

.rectangle-shape.selected {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.rectangle-shape.temp {
    border: 2px dashed #667eea;
    background: rgba(102, 126, 234, 0.1);
}

.page-wrapper.drawing {
    cursor: crosshair !important;
}

.page-wrapper.drawing * {
    pointer-events: none;
}

.text-overlay.dragging {
    opacity: 0.7;
    z-index: 1000;
}

.loading {
    text-align: center;
    padding: 40px;
    color: #667eea;
    font-size: 18px;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.error,
.success {
    /* Retira o elemento do fluxo normal, impedindo que mova outros elementos */
    position: fixed;
    /* Define uma altura alta para garantir que fique sempre acima */
    z-index: 9999;
    /* Centraliza o elemento horizontalmente */
    left: 50%;
    transform: translateX(-50%);
    /* Posição vertical: 20px abaixo do topo da tela */
    top: 20px;

    /* Estilos Visuais */
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    /* Garante que comece invisível */
    display: none;

    /* Remove a margem externa que causava o deslocamento */
    margin: 0;
}

.error {
    background: #fc8181;
    /* Vermelho */
}

.success {
    background: #48bb78;
    /* Verde */
}

.info-text {
    color: #718096;
    font-size: 13px;
    margin-top: 5px;
}

.selected-info {
    background: #edf2f7;
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    color: #4a5568;
    margin-bottom: 15px;
}

.tool-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.tool-btn {
    flex: 1;
    padding: 10px;
    border: 2px solid #cbd5e0;
    border-radius: 8px;
    background: white;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.2s;
}

.tool-btn:hover {
    border-color: #667eea;
    background: #f7fafc;
}

.tool-btn.active {
    border-color: #667eea;
    background: #667eea;
    color: white;
}

.tool-btn.eraser.active {
    border-color: #fc8181;
    background: #fc8181;
    color: white;
}