:root {
    --cor-iftm-vermelho: #cd191e;
    --cor-iftm-verde: #2f9e41;
    --cor-fundo-verde: #eaf5ec;
    --cor-fundo-vermelho: #fae8e8;
    --fundo: #eef2f5;
    --texto: #333333;
    --fonte-principal: 'Roboto', sans-serif;
}

body {
    font-family: var(--fonte-principal);
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.4)), url('../assets/fundo-app.png') center/cover fixed;
    background-color: #2c3e50;
    color: var(--texto);
    margin: 0;
    padding: 15px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.app-container {
    background: white;
    width: 100%;
    max-width: 800px; 
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    padding: 30px 20px;
    text-align: center;
    box-sizing: border-box;
    position: relative;
}

.app-container.container-largo { max-width: 1000px; }
.banner-cabecalho { display: block; width: 100%; max-width: 100%; height: auto; border-radius: 8px; margin-bottom: 20px; box-shadow: 0 4px 10px rgba(0,0,0,0.08); }
.app-container h1 { color: var(--cor-iftm-vermelho); margin-top: 10px; font-size: 1.6em; }
.app-container p { color: #555; font-size: 1.05em; line-height: 1.5; }

.menu-grid { display: flex; flex-direction: column; gap: 15px; margin-top: 30px; }
.btn-menu {
    display: flex; align-items: center; justify-content: center; gap: 10px;
    background-color: white; color: var(--texto); text-decoration: none;
    padding: 16px; border: 2px solid #e0e0e0; border-radius: 8px;
    font-size: 1.1em; font-weight: bold; transition: all 0.3s ease; cursor: pointer;
    box-sizing: border-box;
}
.btn-menu.btn-estudo:hover { border-color: var(--cor-iftm-verde); background-color: var(--cor-fundo-verde); color: var(--cor-iftm-verde); transform: translateY(-2px); }
.btn-menu.btn-acao:hover { border-color: var(--cor-iftm-vermelho); background-color: var(--cor-fundo-vermelho); color: var(--cor-iftm-vermelho); transform: translateY(-2px); }
.btn-menu:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }
.btn-voltar { text-decoration: none; color: var(--cor-iftm-vermelho); font-weight: bold; }

.simulador-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; border-bottom: 2px solid #eee; padding-bottom: 10px; }
.simulador-header.flutuante { position: sticky; top: -1px; background-color: white; z-index: 50; padding-top: 15px; padding-bottom: 10px; margin-top: -15px; }
.palco-visual { width: 100%; height: 300px; background-color: #eee; border-radius: 8px; overflow: hidden; margin-bottom: 20px; border: 2px solid #ccc; display: flex; justify-content: center; align-items: center; }
.imagem-principal { width: 100%; height: 100%; object-fit: contain; background-color: #f8f9fa; }
.texto-contexto { font-style: italic; color: #555; background: #f9f9f9; padding: 10px; border-left: 4px solid var(--cor-iftm-verde); border-radius: 4px; }
.texto-pergunta { margin-top: 20px; font-size: 1.2em; color: var(--texto); }
.painel-opcoes { display: flex; flex-direction: column; gap: 10px; margin-top: 15px; }
.btn-opcao { background-color: white; border: 2px solid #ccc; padding: 15px; border-radius: 8px; font-size: 1em; cursor: pointer; text-align: left; transition: all 0.2s; }
.btn-opcao:hover { border-color: var(--cor-iftm-verde); background-color: var(--cor-fundo-verde); }

.modal-feedback {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: rgba(255, 255, 255, 0.90); backdrop-filter: blur(5px);
    z-index: 9999; display: flex; align-items: center; justify-content: center;
}
.modal-feedback.oculto { display: none; }
.modal-conteudo { text-align: center; padding: 30px; background: white; border-radius: 12px; box-shadow: 0 10px 40px rgba(0,0,0,0.25); max-width: 90%; width: 500px; max-height: 85vh; overflow-y: auto; }
.container-botoes-modal { display: flex; justify-content: center; gap: 15px; margin-top: 20px; flex-wrap: wrap; }

.visor-tempo { font-size: 1.2em; font-weight: bold; color: var(--cor-iftm-verde); padding: 5px 15px; border: 2px solid var(--cor-iftm-verde); border-radius: 20px; background-color: var(--cor-fundo-verde); transition: all 0.3s ease; }
.visor-tempo.alerta { color: var(--cor-iftm-vermelho); border-color: var(--cor-iftm-vermelho); background-color: var(--cor-fundo-vermelho); animation: pulsar 1s infinite; }
@keyframes pulsar { 0% { transform: scale(1); } 50% { transform: scale(1.05); } 100% { transform: scale(1); } }

.layout-teste { display: flex; flex-wrap: wrap; gap: 20px; align-items: flex-start; }
.area-questao { flex: 1; min-width: 300px; background: white; padding: 20px; border-radius: 8px; border: 1px solid #ccc; text-align: left; }
.grid-navegacao { width: 250px; background: white; padding: 15px; border-radius: 8px; border: 1px solid #ccc; display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; }
.btn-nav-questao { width: 35px; height: 35px; border: 1px solid #999; background: white; cursor: pointer; border-radius: 4px; font-weight: bold; color: var(--texto); }
.btn-nav-questao.respondida { background-color: var(--cor-fundo-verde); border-color: var(--cor-iftm-verde); }
.btn-nav-questao.atual { border: 3px solid var(--cor-iftm-vermelho); }
.opcao-teste { display: flex; align-items: flex-start; gap: 10px; padding: 12px; border: 1px solid #ddd; margin-bottom: 10px; border-radius: 6px; cursor: pointer; transition: 0.2s; }
.opcao-teste:hover { background-color: #f8f9fa; }
.opcao-teste.selecionada { background-color: var(--cor-fundo-verde); border-color: var(--cor-iftm-verde); }
.revisao-questao { border-bottom: 2px solid #eee; padding-bottom: 20px; margin-bottom: 20px; text-align: left; }
.revisao-correta { background-color: var(--cor-fundo-verde); border-color: var(--cor-iftm-verde); }
.revisao-incorreta { background-color: var(--cor-fundo-vermelho); border-color: var(--cor-iftm-vermelho); }
.box-explicacao { background-color: #fff3cd; border-left: 5px solid #ffc107; padding: 15px; margin-top: 10px; border-radius: 4px; }

.secao-links { width: 100%; margin-top: 30px; text-align: left; }
.titulo-secao { color: var(--cor-iftm-vermelho); border-bottom: 2px solid #eee; padding-bottom: 10px; margin-bottom: 20px; font-size: 1.4em; }
.grid-links { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }
.card-link { background: white; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; display: flex; flex-direction: column; justify-content: space-between; box-shadow: 0 4px 6px rgba(0,0,0,0.05); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.card-link:hover { transform: translateY(-5px); box-shadow: 0 8px 15px rgba(0,0,0,0.1); border-color: var(--cor-iftm-verde); }
.card-link h3 { margin: 0 0 10px 0; color: var(--texto); font-size: 1.1em; }
.card-link p { color: #666; font-size: 0.9em; line-height: 1.5; margin-bottom: 20px; flex-grow: 1; }
.btn-link-externo { text-align: center; padding: 10px; border-radius: 6px; font-weight: bold; text-decoration: none; font-size: 0.95em; display: block; }

.text-justify { text-align: justify; }
.text-center { text-align: center; }
.text-sucesso { color: var(--cor-iftm-verde); }
.text-erro { color: var(--cor-iftm-vermelho); }
.mt-15 { margin-top: 15px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }
.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.w-100 { width: 100%; }
.footer-app { margin-top: 35px; font-size: 0.85em; color: #888; border-top: 1px solid #eee; padding-top: 15px; line-height: 1.6; text-align: center; }

@media (hover: none) {
    .btn-opcao { border-color: #d1d5db; }
    .btn-menu.btn-estudo { border-color: var(--cor-iftm-verde); color: var(--cor-iftm-verde); }
    .btn-menu.btn-acao { border-color: var(--cor-iftm-vermelho); color: var(--cor-iftm-vermelho); }
    .btn-menu:active, .btn-opcao:active { background-color: #f9f9f9; transform: scale(0.95); }
}