/* Media queries centralizados aqui (extratos principais do CSS original) */
/* 
   BREAKPOINTS (mobile-first design, baseado em design, não em dispositivos):
   - min 320px: muito pequenos (smartwatches, dispositivos antigos)
   - 320px a 480px: phones pequenos
   - 480px a 768px: phones grandes e tablets pequenos
   - 768px a 1024px: tablets médios e grandes
   - 1024px+: desktops e ecrãs grandes
*/

/* Para ecrãs muito pequenos (< 320px) */
@media (max-width: 319px) {
    body {
        align-items: flex-start;
        min-height: 100dvh;
        overflow-x: hidden;
    }

    main {
        padding: 0.5rem;
        margin: 0.25rem;
        width: calc(100% - 0.5rem);
        min-height: calc(100dvh - 0.5rem);
        padding-top: max(0.75rem, env(safe-area-inset-top, 0.75rem));
    }

    h1 {
        font-size: 1rem;
        margin: 0.75rem 0;
    }

    h2 {
        font-size: 1rem;
    }

    #theme-toggle {
        width: 2.25rem;
        height: 2.25rem;
        font-size: 1rem;
    }

    #score-container {
        font-size: 0.65rem;
        padding: 0.3rem 0.5rem;
    }

    .card-container {
        grid-template-columns: 1fr;
        grid-auto-rows: minmax(6.25rem, auto);  /* Sincronizado com .card min-height em ecrãs muito pequenos */
        gap: 0.5rem;
    }

    .card {
        min-height: 6.25rem;
        padding: 0.75rem;
    }

    input {
        font-size: 0.95rem;
        padding: 0.75rem;
    }

    button {
        padding: 0.625rem;
        font-size: 0.875rem;
        min-height: 2.5rem;
    }

    .custom-keyboard {
        max-width: 100%;
        padding: 0 0.25rem;
    }

    .key {
        min-width: 2rem;
        height: 2.25rem;
        font-size: 0.9rem;
    }
}

/* Smartphones pequenos (320px a 480px) */
@media (min-width: 320px) and (max-width: 480px) {
    body {
        align-items: flex-start;
        min-height: 100dvh;
        overflow-x: hidden;
    }

    main {
        padding: 1rem;
        margin: 0.5rem;
        width: calc(100% - 1rem);
        min-height: calc(100dvh - var(--header-height, 3rem) - 1rem);
        padding-top: max(1rem, env(safe-area-inset-top, 0.75rem));
    }

    h1 {
        font-size: 1.4rem;
        margin: 1rem 0;
    }

    h2 {
        font-size: 1.2rem;
    }

    /* Header fixo no mobile */
    #theme-toggle {
        position: sticky;
        top: max(0.75rem, env(safe-area-inset-top, 0.75rem));
        width: 2.75rem;
        height: 2.75rem;
        font-size: 1.1rem;
        z-index: 100;
        background-color: var(--main-bg-color);
        box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
        margin-left: 0.75rem;
        align-self: flex-start;
    }
    
    #score-container {
        position: sticky;
        top: max(0.75rem, env(safe-area-inset-top, 0.75rem));
        left: auto;
        font-size: 0.75rem;
        padding: 0.5rem 0.75rem;
        max-width: calc(100% - 6rem);
        z-index: 100;
        margin-left: auto;
        margin-right: 0.75rem;
        align-self: flex-end;
        display: flex;
        gap: 0.25rem;
        flex-wrap: wrap;
        overflow-x: auto;                    /* Scroll horizontal se necessário */
        overflow-y: hidden;                  /* Sem scroll vertical */
        -webkit-overflow-scrolling: touch;   /* Smooth scroll iOS */
    }

    #score-container span {
        margin: 0 0.25rem;
        font-size: 0.75rem;
        white-space: nowrap;                 /* Mantém número junto */
        word-break: keep-all;                /* Não quebra números */
    }

    .card-container {
        grid-template-columns: 1fr;
        grid-auto-rows: minmax(7.5rem, auto);  /* Sincronizado com .card min-height em mobile */
        gap: 0.75rem;
        margin-top: 1rem;
    }

    .card {
        min-height: 7.5rem;
        padding: 1rem;
    }

    .card-text {
        font-size: 0.9rem;
    }

    .card-emoji {
        font-size: 2rem;
    }

    #exercise-area {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        padding-top: 0;
        min-height: 0;
    }

    #progress-section {
        flex-direction: row; /* Manter lado a lado em mobile */
        gap: 0.75rem;
        margin: 1rem auto 0;
        max-width: calc(100vw - 2rem);
        order: -1; /* Colocar no topo em tablets também */
        align-items: center; /* Alinhar verticalmente */
        flex-wrap: wrap;
        min-width: 0;  /* Permite que filhos encolham */
    }

    #level-badge {
        font-size: 0.75rem; /* Mais compacto para mobile */
        padding: 0.3rem 0.6rem;
        flex-shrink: 1;    /* Permite encolher se necessário */
        align-self: center; /* Centralizar o badge em tablet */
        min-width: 0;      /* Permite texto quebrar */
    }

    #current-level {
        padding: 0.1rem 0.4rem;
        min-width: 1.2rem;
        font-size: 0.8rem; /* Mais compacto */
    }

    .custom-keyboard {
        margin-top: 0.75rem;
        max-width: min(320px, 100%);
        width: min(320px, 100%);
        padding: 0 0.5rem;
        box-sizing: border-box;
        margin-bottom: max(1rem, env(safe-area-inset-bottom, 0.75rem));
    }

    .exercise-container {
        margin: 1.5rem 0;
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #question {
        font-size: 1.1rem;
        margin-bottom: 1.5rem;
        padding: 0;
        word-wrap: break-word;           /* Quebra texto longo */
        overflow-wrap: break-word;       /* Suporte moderno */
        word-break: break-word;          /* Fallback */
    }

    input {
        width: 100%;
        max-width: 100%;
        font-size: 1.05rem;
        padding: 0.875rem;
        margin: 0 0 0.75rem;
    }

    /* Botões de ação - mesma largura e alinhamento */
    button {
        width: 100%;
        margin: 0.5rem 0;
        padding: 0.875rem;
        font-size: 1rem;
        min-height: 48px;
    }

    #check-button,
    #next-button {
        width: 100%;
        max-width: 100%;
        margin: 0.5rem 0;
    }

    #next-level-button {
        width: 100%;
        max-width: 100%;
    }

    #feedback {
        font-size: 1rem;
        padding: 0;
        margin: 1rem 0;
    }

    #summary-area {
        padding: 1rem 0;
    }

    /* No mobile, deixar o botão voltar no fluxo normal (sem fixed) */
    #back-to-menu {
        position: static;
        width: 100%;
        margin: 0.5rem 0 0.25rem;
        box-shadow: none;
        top: auto;
        left: auto;
        right: auto;
    }

    /* Ajustes para o teclado personalizado em mobile */
    .keyboard-row {
        gap: 0.3rem; /* Menos espaço entre teclas */
        margin-bottom: 0.3rem;
        display: flex;
        flex-wrap: wrap;
    }

    .key {
        height: 2.75rem; /* Altura de toque acessível */
        min-width: 2.5rem;
        flex: 1 1 40px;
        font-size: 1.1rem;
    }
}

/* Tablets pequenos e phones grandes (481px a 768px) */
@media (min-width: 481px) and (max-width: 768px) {
    body {
        align-items: flex-start;
        min-height: 100dvh;
        overflow-x: hidden;
    }

    main {
        padding: 1.25rem;
        margin: 0.75rem;
        width: calc(100% - 1.5rem);
        min-height: calc(100dvh - var(--header-height, 3rem) - 1.5rem);
        padding-top: max(1rem, env(safe-area-inset-top, 0.75rem));
    }

    h1 {
        font-size: 1.5rem;
        margin: 1.25rem 0;
    }

    h2 {
        font-size: 1.25rem;
    }

    #theme-toggle {
        position: sticky;
        top: max(0.75rem, env(safe-area-inset-top, 0.75rem));
        width: 2.75rem;
        height: 2.75rem;
        font-size: 1.1rem;
        z-index: 100;
        background-color: var(--main-bg-color);
        box-shadow: 0 2px 5px rgb(0 0 0 / 10%);
        margin-left: 0.75rem;
        align-self: flex-start;
    }
    
    #score-container {
        position: sticky;
        top: max(0.75rem, env(safe-area-inset-top, 0.75rem));
        left: auto;
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
        max-width: calc(100% - 6rem);
        z-index: 100;
        margin-left: auto;
        margin-right: 0.75rem;
        align-self: flex-end;
        display: flex;
        gap: 0.25rem;
        flex-wrap: wrap;
    }

    #score-container span {
        margin: 0 0.25rem;
        font-size: 0.8rem;
    }

    .card-container {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: minmax(8.75rem, auto);  /* Sincronizado com .card min-height em tablet */
        gap: 1rem;
        margin-top: 1.25rem;
    }

    .card {
        min-height: 8.75rem;
        padding: 1.25rem;
    }

    .card-text {
        font-size: 0.95rem;
    }

    .card-emoji {
        font-size: 2.2rem;
    }

    #exercise-area {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        padding-top: 0;
        min-height: 0;
    }

    #progress-section {
        flex-direction: row;
        gap: 0.75rem;
        margin: 1rem auto 0;
        max-width: calc(100vw - 2rem);
        order: -1;
        align-items: center;
        flex-wrap: wrap;
    }

    #level-badge {
        font-size: 0.8rem;
        padding: 0.35rem 0.75rem;
        flex-shrink: 0;
        align-self: center;
    }

    #current-level {
        padding: 0.1rem 0.4rem;
        min-width: 1.2rem;
        font-size: 0.8rem;
    }

    .custom-keyboard {
        margin-top: 0.75rem;
        max-width: min(20rem, 100%);
        width: min(20rem, 100%);
        padding: 0 0.5rem;
        box-sizing: border-box;
        margin-bottom: max(1rem, env(safe-area-inset-bottom, 0.75rem));
    }

    .exercise-container {
        margin: 1.5rem 0;
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    #question {
        font-size: 1.15rem;
        margin-bottom: 1.5rem;
        padding: 0;
    }

    input {
        width: 100%;
        max-width: 100%;
        font-size: 1.05rem;
        padding: 0.875rem;
        margin: 0 0 0.75rem;
    }

    button {
        width: 100%;
        margin: 0.5rem 0;
        padding: 0.875rem;
        font-size: 1rem;
        min-height: 3rem;
    }

    #check-button,
    #next-button {
        width: 100%;
        max-width: 100%;
        margin: 0.5rem 0;
    }

    #next-level-button {
        width: 100%;
        max-width: 100%;
    }

    #feedback {
        font-size: 1rem;
        padding: 0;
        margin: 1rem 0;
    }

    #summary-area {
        padding: 1rem 0;
    }

    #back-to-menu {
        position: static;
        width: 100%;
        margin: 0.5rem 0 0.25rem;
        box-shadow: none;
        top: auto;
        left: auto;
        right: auto;
    }

    #exercise-area {
        padding-top: 0;
    }

    .keyboard-row {
        gap: 0.3rem;
        margin-bottom: 0.3rem;
        display: flex;
        flex-wrap: wrap;
    }

    .key {
        height: 2.75rem;
        min-width: 2.5rem;
        flex: 1 1 40px;
        font-size: 1.1rem;
    }
}

/* Tablets médios (769px a 1024px) */
@media (min-width: 769px) and (max-width: 1024px) {
    body {
        align-items: flex-start;
    }

    main {
        padding: 1.5rem;
        margin: 1rem auto;
        width: 95%;
        max-width: 56.25rem;
    }

    h1 {
        font-size: 1.6rem;
    }

    h2 {
        font-size: 1.3rem;
    }

    .card-container {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        grid-auto-rows: minmax(8.75rem, auto);  /* Sincronizado com .card min-height em desktop */
        gap: 1.2rem;
    }

    .card {
        min-height: 8.75rem;
        padding: 1.2rem;
    }

    #progress-section {
        max-width: 43.75rem;
    }

    .exercise-container {
        max-width: 28.125rem;
        margin: 2rem auto;
    }

    #check-button,
    #next-button {
        max-width: 21.875rem;
        margin: 0.75rem auto;
    }

    input {
        max-width: 21.875rem;
        margin: 0 auto 1rem;
    }

    #question {
        text-align: center;
        margin-bottom: 2rem;
    }

    .custom-keyboard {
        max-width: 21.875rem;
    }
}

/* Desktops e ecrãs grandes (1025px+) */
@media (min-width: 1025px) {
    .exercise-container {
        max-width: 25rem;
        margin: 2rem auto;
    }

    #check-button,
    #next-button {
        width: 100%;
        max-width: 18.75rem;
        margin: 0.75rem auto;
    }

    #question {
        text-align: center;
        margin-bottom: 2rem;
    }

    input {
        max-width: 21.875rem;
        margin: 0 auto 1rem;
    }
}

/* Landscape mobile e pequenos tablets */
@media (max-height: 500px) and (orientation: landscape) {
    main {
        padding-top: 4.5rem;
    }

    #back-to-menu {
        top: 3.5rem;
        padding: 0.5rem;
    }

    #exercise-area {
        padding-top: 2.5rem;
    }
}

/* Suporte para notches em dispositivos modernos */
@supports (padding: max(0px)) {
    body {
        padding-left: max(0px, env(safe-area-inset-left));
        padding-right: max(0px, env(safe-area-inset-right));
        /* Remover padding-bottom em mobile para evitar scroll */
    }
    
    @media (max-width: 768px) {
        #theme-toggle,
        #score-container {
            top: max(0.75rem, env(safe-area-inset-top));
        }
    }
}