/**
 * Responsividade mobile — sistema completo
 * Carregado após style.css em todas as páginas (includes/head.php)
 */

/* ===== Base e safe area (iPhone etc.) ===== */
@media (max-width: 768px) {
    html {
        -webkit-text-size-adjust: 100%;
        text-size-adjust: 100%;
    }

    body {
        padding-left: env(safe-area-inset-left);
        padding-right: env(safe-area-inset-right);
    }

    body.nav-open {
        overflow: hidden;
    }

    /* Evita zoom automático no iOS ao focar inputs */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="search"],
    input[type="tel"],
    input[type="number"],
    select,
    textarea {
        font-size: 16px !important;
    }

    /* Áreas de toque mínimas (44px) */
    button,
    .btn-primary,
    .btn-secondary,
    .btn-logout,
    .btn-login,
    input[type="submit"],
    input[type="checkbox"],
    .opcao-radio-content,
    .opcao-concurso,
    .opcao-simulado {
        min-height: 44px;
    }

    .container {
        padding: 20px 14px !important;
        max-width: 100%;
    }

    /* Breadcrumb */
    .breadcrumb {
        flex-wrap: wrap;
        gap: 4px 6px;
        font-size: 0.82rem;
        line-height: 1.5;
        padding: 10px 12px;
        word-break: break-word;
    }

    .page-header h1 {
        font-size: 1.65rem !important;
        line-height: 1.25;
    }

    .page-header p {
        font-size: 0.95rem !important;
    }

    /* Conteúdo gerado (explicações HTML) */
    .conteudo-explicacao,
    .exemplos-content,
    .dicas-content,
    .pegadinhas-content,
    .explicacao-container,
    .explicacao-texto {
        overflow-x: auto;
        word-wrap: break-word;
        overflow-wrap: anywhere;
    }

    .conteudo-explicacao img,
    .exemplos-content img,
    .dicas-content img,
    .explicacao-container img,
    .conteudo-explicacao video,
    .explicacao-container video {
        max-width: 100% !important;
        height: auto !important;
    }

    .conteudo-explicacao table,
    .exemplos-content table {
        display: block;
        max-width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    /* Vídeo e embeds */
    .video-embed,
    .video-player-card video,
    .explicacao-video video {
        width: 100% !important;
        max-width: 100%;
        height: auto !important;
    }

    .video-embed iframe,
    iframe {
        max-width: 100%;
    }

    /* Áudio */
    .audio-html5-player,
    .audio-html5-player audio {
        width: 100% !important;
        max-width: 100%;
    }

    .audio-player-card {
        padding: 18px 14px !important;
    }

    /* Hero conteúdo */
    .conteudo-hero {
        padding: 28px 18px !important;
        border-radius: 16px;
    }

    .conteudo-title {
        font-size: 1.55rem !important;
        line-height: 1.25;
    }

    .conteudo-subtitle {
        font-size: 0.95rem !important;
    }

    /* Opções de estudo */
    .opcoes-estudo-modern {
        grid-template-columns: 1fr !important;
        gap: 14px;
    }

    .opcao-card-content {
        padding: 22px 18px !important;
    }

    .opcao-card-modern h3 {
        font-size: 1.05rem !important;
    }

    /* Quiz */
    .questao-box-modern {
        padding: 18px 14px !important;
    }

    .questao-enunciado-modern {
        font-size: 1rem !important;
    }

    .explicacao-actions,
    .resultado-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .explicacao-actions .btn,
    .explicacao-actions a,
    .resultado-actions .btn,
    .resultado-actions a {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    /* Chat (style.css) */
    .chat-container {
        padding: 18px 14px !important;
    }

    .chat-messages {
        max-height: 55vh !important;
        padding: 14px !important;
    }

    .chat-form {
        flex-direction: column;
        gap: 10px;
    }

    .chat-form input[type="text"],
    .chat-form textarea {
        width: 100%;
    }

    /* Tabelas admin / progresso */
    .progresso-table-wrapper,
    .usuarios-table-wrapper,
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        margin: 0 -4px;
    }

    .progresso-table,
    .usuarios-table {
        min-width: 520px;
    }

    /* Cards matéria */
    .materias-grid {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }

    .materia-card {
        padding: 22px 18px !important;
    }

    .page-materia .page-header h1 {
        font-size: 1.35rem !important;
    }

    .conteudo-card__main {
        flex-wrap: wrap;
    }

    .conteudo-card__side {
        width: 100%;
        justify-content: flex-end;
    }

    /* Simulado */
    .simulado-container,
    .questoes-concursos-container,
    .mapas-mentais-container,
    .mapa-view-container {
        margin: 16px auto !important;
    }

    .simulado-header,
    .questoes-header,
    .mapas-header,
    .mapa-view-header {
        padding: 24px 18px !important;
        border-radius: 16px;
    }

    .simulado-header h1,
    .questoes-header h1,
    .mapas-header h1,
    .mapa-view-header h1 {
        font-size: 1.45rem !important;
    }

    .selecao-container,
    .questoes-container {
        padding: 18px 14px !important;
    }

    .materia-section {
        padding: 14px !important;
    }

    .conteudo-item {
        flex-wrap: wrap;
        align-items: flex-start;
        gap: 8px;
    }

    .conteudo-item label {
        flex: 1 1 100%;
        order: 2;
    }

    .conteudo-badge {
        order: 3;
    }

    .questao-simulado-box,
    .questao-concurso-box {
        padding: 20px 16px !important;
    }

    .questao-simulado-header,
    .questao-concurso-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .questao-simulado-info,
    .questao-concurso-info {
        gap: 8px;
    }

    .info-badge {
        font-size: 0.78rem;
        padding: 5px 10px;
    }

    .questao-simulado-enunciado,
    .questao-concurso-enunciado {
        font-size: 1rem !important;
    }

    .opcao-simulado,
    .opcao-concurso {
        padding: 14px 16px !important;
    }

    .btn-gerar-simulado {
        width: 100%;
        padding: 14px 20px !important;
    }

    .resultado-simulado {
        padding: 24px 16px !important;
    }

    .stat-item {
        min-width: 0 !important;
        flex: 1 1 100%;
        padding: 18px !important;
    }

    .filtros-questoes {
        flex-direction: column;
        align-items: stretch;
        padding: 18px 14px !important;
    }

    .filtro-item {
        width: 100%;
    }

    .filtro-item select,
    .filtro-item input {
        width: 100%;
    }

    /* Mapas mentais */
    .mapas-grid {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }

    .mapa-card {
        padding: 22px 18px !important;
    }

    .mapa-view-content {
        padding: 16px 12px !important;
    }

    .mapa-html-container {
        min-height: 0 !important;
    }

    .mapa-html-container iframe {
        height: 70vh !important;
        min-height: 400px;
    }

    .mapa-pdf-container iframe {
        height: 55vh !important;
        min-height: 320px;
    }

    .mapa-actions {
        flex-direction: column;
    }

    .mapa-actions .btn-download {
        width: 100%;
        justify-content: center;
    }

    /* Pergunte ao Professor */
    .professor-chat-container {
        margin: 12px 0 !important;
        border-radius: 16px;
        min-height: calc(100dvh - 100px) !important;
        height: calc(100dvh - 100px) !important;
    }

    .professor-chat-header {
        padding: 20px 16px !important;
    }

    .professor-chat-header h1 {
        font-size: 1.35rem !important;
        padding-right: 0;
    }

    .professor-limpar-conversa {
        position: static;
        display: inline-block;
        margin-top: 10px;
        font-size: 0.82rem;
    }

    .professor-badge-main {
        font-size: 0.85rem;
        padding: 10px 16px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .professor-chat-messages {
        padding: 16px 12px !important;
    }

    .chat-message-content {
        max-width: 88% !important;
        padding: 14px 16px !important;
        font-size: 0.95rem;
    }

    .chat-message-avatar {
        width: 36px !important;
        height: 36px !important;
        font-size: 1rem !important;
    }

    .professor-chat-input-area {
        padding: 14px 12px !important;
        padding-bottom: calc(14px + env(safe-area-inset-bottom)) !important;
    }

    .chat-input-wrapper {
        flex-direction: column;
        gap: 10px;
    }

    .chat-input-wrapper textarea {
        width: 100%;
        min-height: 44px;
        max-height: 120px;
    }

    .chat-send-btn {
        width: 100%;
        justify-content: center;
    }

    .quick-actions {
        gap: 8px;
    }

    .quick-action-btn {
        font-size: 0.8rem;
        padding: 8px 12px;
    }

    /* Flash cards (página flash-cards.php) */
    .flash-cards-container {
        padding: 12px 8px !important;
    }

    .flash-cards-header h1 {
        font-size: 1.35rem !important;
    }

    .flash-cards-grid {
        grid-template-columns: 1fr !important;
        gap: 16px;
    }

    .flash-card-wrap,
    .flash-card-inner,
    .flash-card-front,
    .flash-card-back {
        min-height: 220px;
    }

    /* Countdown sessão */
    .countdown-sessao {
        flex-wrap: wrap;
        font-size: 0.82rem;
        padding: 8px 12px;
        gap: 4px;
        justify-content: center;
        text-align: center;
    }

    .countdown-sessao .countdown-cta {
        width: 100%;
        margin-right: 0;
        margin-bottom: 4px;
    }

    /* Admin */
    .admin-stats {
        grid-template-columns: 1fr 1fr !important;
    }

    .actions-grid {
        grid-template-columns: 1fr !important;
    }

    /* Desativa hover transform em touch */
    .materia-card:hover,
    .questao-simulado-box:hover,
    .questao-concurso-box:hover,
    .mapa-card:hover {
        transform: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 16px 12px !important;
    }

    .header-logo a.logo-link {
        font-size: 1rem !important;
    }

    .page-header h1 {
        font-size: 1.45rem !important;
    }

    .admin-stats {
        grid-template-columns: 1fr !important;
    }

    .explicacao-texto h1,
    .audio-header-text h1,
    .video-header-text h1 {
        font-size: 1.35rem !important;
    }

    .professor-chat-container {
        border-radius: 12px;
    }

    .chat-message-content {
        max-width: 92% !important;
    }

    .flash-card-text {
        font-size: 0.88rem !important;
    }
}

/* Landscape phone — mapas e vídeo */
@media (max-width: 896px) and (orientation: landscape) {
    .mapa-html-container iframe {
        height: 85vh !important;
    }

    .professor-chat-container {
        min-height: calc(100dvh - 72px) !important;
        height: calc(100dvh - 72px) !important;
    }
}