/* =========================================
   VARIABLES GLOBALS
   ========================================= */
:root {
    /* Colors Mode Clar */
    --color-fons: #f6f6f6;
    --color-blanc: #FFFFFF;
    --color-text: rgba(0, 0, 0, .85);
    --color-principal: #004E7C;
    --color-secundari: #F08302;
    --color-hover: #fffb01;
    --color-boto: #3498db;
    --color-boto-hover: #2980b9;
    --color-caixa: transparent;
    --vora-caixa: 1px solid rgba(0, 0, 0, 0.1);
    --color-griset: #c7c7c7;

    /* Ombres unificades */
    --ombra-petita: 0 2px 4px rgba(0, 0, 0, 0.2);
    --ombra-capcalera: 0 2px 10px rgba(0, 0, 0, 0.05);
    --ombra-caixa: 0 4px 20px rgba(0, 0, 0, 0.05);
    --ombra-menu: 0 8px 16px rgba(0, 0, 0, 0.15);
    --ombra-menu-top: 0 -8px 16px rgba(0, 0, 0, 0.15);
    --ombra-lateral: 2px 0 10px rgba(0, 0, 0, 0.15);
    --ombra-modal: 0 30px 60px rgba(0, 0, 0, 0.2);

    /* Radis unificats */
    --radi-input: 20px;
    --radi-boto: 8px;
    --radi-targeta: 16px;
    --radi-petit: 4px;
    --radi-rodona: 50%;
    --radi-item: 6px;

    /* Tipografia responsiva (mòbil per defecte) */
    --mida-h1: 2rem;
    --mida-h2: 1.75rem;
    --mida-h3: 1.5rem;
    --mida-h4: 1.25rem;
    --mida-h5: 1.1rem;
    --mida-p: 1rem;
    --mida-em: 0.9rem;

    /* Mides addicionals unificades */
    --mida-xs: 0.8rem;
    --mida-xsm: 0.85rem;
    --mida-sm: 0.9rem;
    --mida-m: 1rem;
    --mida-nav: 0.95rem;
    --mida-logo: 1.5rem;
    --mida-icona: 1.2rem;
    --mida-icona-gran: 1.5rem;
    --mida-tancar: 1.6rem;
    --mida-cercador: 1.4rem;
    --mida-resultat: 1.15rem;
}

/* Mode Nit */
.mode-nit {
    --color-fons: #000000;
    --color-blanc: #1b1c1d;
    --color-text: #f0f0f0;
    --color-principal: #4fa3d1;
    --color-secundari: #F08302;
    --color-boto: #2980b9;
    --color-boto-hover: #1f618d;
    --color-caixa: transparent;
    --ombra-caixa: 0 4px 20px rgba(0, 0, 0, 0.3);
    --vora-caixa: 1px solid rgba(255, 255, 255, 0.1);
    --ombra-modal: 0 30px 60px rgba(0, 0, 0, 0.6);
}

/* Tipografia per a pantalles mitjanes i grans */
@media (min-width: 601px) {
    :root {
        --mida-h1: 2.5rem;
        --mida-h2: 2rem;
        --mida-h3: 1.75rem;
        --mida-h4: 1.5rem;
        --mida-h5: 1.25rem;
        --mida-p: 1.1rem;
        --mida-em: 1rem;
    }
}

/* =========================================
   ESTILS GLOBALS
   ========================================= */
html {
    height: 100%;
}

img {
    max-width: 100%;
    height: auto;
}

body {
    background-color: var(--color-fons);
    color: var(--color-text);
    font-family: 'Inter', 'Roboto', sans-serif;
    margin: 0;
    padding: 55px 0 0 0;
    transition: background-color 0.3s ease, color 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 100%;
    box-sizing: border-box;
}

@media (max-width: 480px) {
    body {
        padding-top: 45px;
    }
}

@media (max-width: 480px) {
    body#cos-pagina {
        background-color: var(--color-blanc) !important;
    }
}



:focus-visible {
    outline: 2px solid var(--color-principal);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

h1 { font-size: var(--mida-h1); font-weight: 700; margin-bottom: 1rem; color: var(--color-principal); }
h2 { font-size: var(--mida-h2); font-weight: 600; margin-bottom: 0.8rem; color: var(--color-principal); }
h3 { font-size: var(--mida-h3); font-weight: 600; margin-bottom: 0.6rem; color: var(--color-principal); }
h4 { font-size: var(--mida-h4); font-weight: 500; margin-bottom: 0.5rem; color: var(--color-principal); }
h5 { font-size: var(--mida-h5); font-weight: 500; margin-bottom: 0.5rem; color: var(--color-principal); }

p {
    font-size: var(--mida-p);
    line-height: 1.6;
    margin-bottom: 1rem;
}

em {
    font-size: var(--mida-em);
    font-style: italic;
    color: var(--color-principal);
}

ul {
/*   margin: 0 0 16px; */
  padding-left: 24px; /* Ajusta la sangría de las viñetas */
}

ul li {
  font-size: var(--mida-p);
  line-height: 1.6;
  color: var(--color-text);
/*   margin-bottom: 16px; */
}

ul li:last-child {
  margin-bottom: 0;
}

/* =========================================
   LOGIN / FORMULARIS
   ========================================= */
.contenidor-login {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    padding: 25px;
}

.caixa-login {
    background-color: var(--color-blanc);
    padding: 40px 30px;
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-menu);
    border: var(--vora-caixa);
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;   /* Evita el overflow horitzontal */
    text-align: center;
    transition: border 0.3s ease;
    color: var(--color-text);
    margin-top: 25px;
}

@media (max-width: 480px) {
    .caixa-login {
        border-radius: 0 !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0px !important;
    }
}

/* Benvinguda dinàmica del panel */

.caixa-login h2 {
    color: var(--color-principal);
}


.benvinguda-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin: 6px 0;
    color: var(--color-text);
}

.benvinguda-bloc {
    text-align: left;
    border-radius: var(--radi-targeta);
    padding: 25px;
    margin-top: 22px;
}

@media (max-width: 480px) {
    .benvinguda-bloc {
        padding: 0px !important;
    }
}

.benvinguda-bloc h3 {
    margin: 0 0 10px;
    font-size: var(--mida-h4);
    color: var(--color-principal);
}

.benvinguda-bloc h3 i {
    color: var(--color-principal);
}

.benvinguda-bloc p {
    margin: 6px 0;
    line-height: 1.5;
    color: var(--color-text);
}

.benvinguda-switches {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin: 12px 0;
}

.benvinguda-switch {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--color-principal);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: var(--mida-em);
    color: var(--color-text);
}

.benvinguda-switch i {
    color: var(--color-principal);
}

.benvinguda-tancament {
    margin-top: 24px;
    font-size: var(--mida-h5);
    color: var(--color-text);
}

/* Logo de la landing (el més gran possible dins de la caixa) */
.logo-landing {
    width: 100%;
    max-width: 360px;
    height: auto;
    display: block;
    margin: 0 auto 10px;
}

.logo-landing-lema {
    font-size: var(--mida-p);
    line-height: 1.4;
    color: var(--color-text);
    margin: 0 0 22px;
}

input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 14px;
    margin: 10px 0;
    border: 1px solid rgba(128, 128, 128, 0.3);
    border-radius: var(--radi-boto);
    box-sizing: border-box;
    font-size: var(--mida-p);
    background-color: var(--color-fons);
    color: var(--color-text);
    transition: border-color 0.3s, background-color 0.3s;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: 2px solid var(--color-principal);
    outline-offset: -2px;
    border-color: var(--color-principal);
}

.boto-principal,
.boto-secundari {
    width: 100%;
    padding: 14px;
    margin-top: 15px;
    border: none;
    border-radius: var(--radi-boto);
    font-size: var(--mida-p);
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
}

.boto-principal {
    background-color: var(--color-principal);
    color: var(--color-blanc);
}

.boto-principal:hover {
    background-color: var(--color-hover);
    color: var(--color-text);
}

.mode-nit .boto-principal:hover {
    background-color: var(--color-hover);
    color:var(--color-fons);
}

.boto-secundari {
    background-color: var(--color-fons);
    color: var(--color-text);
}

.boto-secundari:hover {
    background-color: var(--color-boto-hover);
}

.mode-nit .boto-secundari:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Controls superiors (idioma / mode nit) */
.controls-superiors {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 20px;
    align-items: center;
    background-color: var(--color-blanc);
    padding: 10px 20px;
    border-radius: 30px;
    border: var(--vora-caixa);
    box-shadow: var(--ombra-caixa);
}

@media (max-width: 480px) {
    .controls-superiors {
        position: relative;
        top: auto;
        right: auto;
        justify-content: center;
        margin: 0 auto 20px;
        width: calc(100% - 50px);
        box-sizing: border-box;
        flex-wrap: wrap;
        border-radius: 20px;
    }
}

.selector-idioma {
    cursor: pointer;
    font-weight: bold;
    color: var(--color-principal);
    user-select: none;
    transition: opacity 0.2s;
}

.selector-idioma:hover {
    opacity: 0.8;
}

/* Switch Mode Nit */
.switch-nit {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
}

.switch-nit input {
    display: none;
}

.slider-nit {
    width: 44px;
    height: 24px;
    background-color: #ccc;
    border-radius: 24px;
    position: relative;
    margin-left: 10px;
    transition: 0.4s;
}

.slider-nit::before {
    content: "";
    position: absolute;
    width: 18px;
    height: 18px;
    border-radius: var(--radi-rodona);
    background-color: white;
    top: 3px;
    left: 3px;
    transition: 0.4s;
    box-shadow: var(--ombra-petita);
}

input:checked + .slider-nit {
    background-color: var(--color-principal);
}

input:checked + .slider-nit::before {
    transform: translateX(20px);
}

/* =========================================
   CAPÇALERA (HEADER)
   ========================================= */
.capcalera {
    display: flex;
    min-height: 25px;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--color-principal);
    color: var(--color-blanc);
    box-shadow: var(--ombra-menu);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    box-sizing: border-box;
    transition: transform 0.3s ease;
}

.capcalera.header-amagat {
    transform: translateY(-100%);
}

.mode-nit .capcalera {
    border-bottom: var(--vora-caixa);
}

.capcalera-esquerra,
.capcalera-centre,
.capcalera-dreta {
    flex: 1;
    display: flex;
    align-items: center;
}

.capcalera-esquerra { justify-content: flex-start; }
.capcalera-centre { justify-content: center; }
.capcalera-dreta { justify-content: flex-end; gap: 15px; }

.logo a {
    font-size: var(--mida-logo);
    font-weight: 700;
    text-decoration: none;
    color: var(--color-blanc);
    display: flex;
    align-items: center;
    gap: 5px;
}

.logo span { color: var(--color-blanc); }

.logo span:hover{
    color: var(--color-hover);
}

/* Logo del header (imatge clicable al costat de MathWeb) */
.logo a img.logo-img {
    height: 50px;
    width: auto;
    display: block;
}

/* Burger Menu */
.burger-menu {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    border-radius: var(--radi-petit);
}

.burger-menu:focus-visible {
    outline: 2px solid var(--color-blanc);
    outline-offset: 4px;
}

.burger-menu span {
    width: 30px;
    height: 3px;
    background: var(--color-blanc);
    border-radius: 10px;
    transition: all 0.3s linear;
}

/* Info Usuari */
.info-usuari {
    display: flex;
    flex-direction: column;
    text-align: right;
    line-height: 1.2;
}

.nom-usuari {
    font-weight: 600;
    font-size: var(--mida-nav);
}

.puntuacio-usuari {
    font-size: var(--mida-xs);
    color: var(--color-blanc);
    font-weight: 500;
    opacity: 0.85;
}

/* Dropdown Configuració */
.configuracio-dropdown {
    position: relative;
}

.btn-engranatge {
    background: none;
    border: none;
    font-size: var(--mida-icona-gran);
    cursor: pointer;
    color: var(--color-blanc);
    transition: transform 0.3s;
}

.btn-engranatge:hover {
    transform: rotate(45deg);
    color: var(--color-hover);
}

.btn-engranatge:focus-visible {
    outline: 2px solid var(--color-blanc);
    outline-offset: 4px;
    border-radius: var(--radi-rodona);
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--color-principal);
    min-width: 200px;
    box-shadow: var(--ombra-menu);
    border-radius: var(--radi-boto);
    border: none;
    z-index: 1001;
    overflow: hidden;
    margin-top: 10px;
}

.dropdown-content.mostra { display: block; }

.dropdown-content a {
    color: var(--color-blanc);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: var(--mida-sm);
/*     border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
}

.dropdown-content a:hover {
    color: var(--color-hover);
}

.dropdown-content .divisor {
    height: 1px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 4px 0;
}

/* =========================================
   NAVEGACIÓ PRINCIPAL (MÒBIL PER DEFECTE)
   ========================================= */
.nav-principal {
    position: fixed;
    top: 0;
    left: -100%;
    width: 85vw;
    max-width: 350px;
    height: 100vh;
    background-color: var(--color-principal);
    box-shadow: var(--ombra-lateral);
    transition: left 0.3s ease;
    z-index: 2000;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.nav-principal.obert { left: 0; }

.overlay-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1500;
}

.overlay-mobile.actiu { display: block; }

.nav-mobile-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 15px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.nav-mobile-user {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nom-usuari-mobil {
    font-weight: 700;
    font-size: var(--mida-m);
    color: var(--color-blanc);
}

.puntuacio-usuari-mobil {
    font-size: var(--mida-xs);
    color: rgba(255, 255, 255, 0.7);
    font-weight: 500;
}

.buscador-mobil-wrapper {
    padding-left: 15px;
    padding-right: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.buscador-resultats-mobil {
    display: none;
    padding: 5px 0 10px 0;
}

.buscador-resultats-mobil.actiu { display: block; }

.buscador-resultats-mobil .resultat-item {
    display: block;
    padding: 10px 15px;
    color: var(--color-blanc);
    text-decoration: none;
    border-radius: var(--radi-item);
    font-size: var(--mida-sm);
    transition: background 0.2s;
}

.buscador-resultats-mobil .resultat-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.buscador-resultats-mobil .resultat-titol {
    font-weight: 500;
    margin-bottom: 2px;
}

.buscador-resultats-mobil .resultat-ruta {
    font-size: var(--mida-xs);
    color: var(--color-blanc);
}

.buscador-resultats-mobil .resultat-no-contingut {
    padding: 20px;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--mida-sm);
}

.close-menu {
    background: none;
    border: none;
    font-size: var(--mida-icona-gran);
    color: var(--color-blanc);
    cursor: pointer;
    border-radius: var(--radi-petit);
}

.close-menu:focus-visible {
    outline: 2px solid var(--color-blanc);
    outline-offset: 2px;
}

/* Buscador */
.buscador {
    display: flex;
    align-items: center;
/*     background: rgba(255, 255, 255, 0.15); */
    border-radius: var(--radi-input);
}

.buscador input {
    border: none;
    background: transparent;
    padding: 5px;
    width: 100%;
    color: var(--color-blanc);
    outline: none;
}

.buscador input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.buscador button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-blanc);
}

.buscador-pc { display: none; }
.buscador-dropdown { display: none; }

/* =========================================
   MENU ITEMS (MOBILE ACCORDION)
   ========================================= */
.menu-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.menu-dropdown {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    color: var(--color-blanc);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}

.dropdown-toggle:hover {
    color: var(--color-hover);
}

.submenu {
    display: none;
    box-shadow: var(--ombra-menu);
}

.menu-dropdown.expandit .submenu {
    display: block;
}

/* Megamenú (mòbil: vertical) */
.megamenu-grid {
    display: flex;
    flex-direction: column;
    padding: 0;
}

.columna-curso {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-left: 10px;
    padding-right: 10px;
}

.titol-curso { margin: 0; border-bottom: none; }

.titol-curso span {
    display: block;
    padding: 12px 20px;
    color: var(--color-blanc);
    font-weight: 500;
    text-align: center;
}

.titol-curso span:hover {
    color: var(--color-hover);
}

.llista-temes {
    list-style: none;
    padding: 0;
    margin: 0;
}

.columna-curso .llista-temes {
    display: none;
}

.columna-curso.show-temes .llista-temes { display: block; }

.llista-temes li a {
    display: block;
    padding-left: 10px;
    text-align: left;
    min-height: auto;
    color: var(--color-blanc);
/*     border-bottom: 1px solid rgba(255, 255, 255, 0.08); */
    text-decoration: none;
}

.llista-temes li a:hover {

}

.cap-tema {
    padding: 14px 20px 14px 45px;
    color: rgba(255, 255, 255, 0.5);
    font-size: var(--mida-sm);
}

.mode-nit .llista-temes li a {
/*     border-bottom: 1px solid rgba(255, 255, 255, 0.08); */
}

.mode-nit .submenu {
    background: rgba(0, 0, 0, 0.2);
}

/* Enllaços simples de navegació */
.menu-link {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.menu-link .enllac-simple {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 15px 20px;
    color: var(--color-blanc);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}

.menu-link .enllac-simple:hover {
        color: var(--color-hover);
}

.mode-nit .menu-link {
/*     border-bottom: 1px solid rgba(255, 255, 255, 0.1); */
}

/* =========================================
   PC (≥1024px)
   ========================================= */
@media (min-width: 1024px) {
    .capcalera-centre { display: none; }

    .capcalera-esquerra {
        width: 25%;
        flex: none;
    }

    .columna-curso {
    padding-bottom: 10px;
}

    .capcalera-dreta {
        width: 25%;
        flex: none;
    }

    .nav-principal {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        box-shadow: none;
        flex-direction: row;
        overflow: visible;
        flex-grow: 1;
        justify-content: center;
    }

    .nav-mobile-top { display: none; }
    .buscador-mobil-wrapper { display: none; }

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

    .menu-dropdown,
    .menu-link {
        border-bottom: none;
    }

    .dropdown-toggle {
        padding: 10px 15px;
        border-radius: var(--radi-boto);
    }

    .menu-dropdown:hover .submenu,
    .menu-dropdown:focus-within .submenu {
        display: block;
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        margin-top: -15px;
        padding-top: 10px;
        width: 90vw;
        max-width: 1150px;
        max-height: 80vh;
        overflow-y: auto;
        background: var(--color-principal);
        color: var(--color-blanc);
        box-shadow: var(--ombra-menu);
        border: none;
        border-radius: var(--radi-boto);
        z-index: 1000;
        animation: none;
    }

    .menu-dropdown:hover .submenu a,
    .menu-dropdown:hover .submenu h4,
    .menu-dropdown:hover .submenu .titol-curso span,
    .menu-dropdown:hover .submenu .llista-temes li a,
    .menu-dropdown:hover .submenu li a {
        color: var(--color-blanc);
        text-decoration: none;
    }

    .menu-dropdown:hover .submenu .titol-curso {
        border-bottom-color: rgba(255, 255, 255, 0.3);
    }

    .menu-dropdown:hover .submenu .llista-temes li a {
        display: flex;
        color: var(--color-blanc);
        text-decoration: none;
/*         border-bottom-color: rgba(255, 255, 255, 0.1); */
    }

    .menu-dropdown:hover .submenu .llista-temes li a:hover {
        color: var(--color-hover);
    }

    .submenu li a {
/*         border-bottom: var(--vora-caixa); */
        text-decoration: none;
        padding-top: 10px;
        padding-bottom: 10px;
    }

    .submenu li:last-child a { border-bottom: none; }

    .megamenu-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 12px;
    }

    .columna-curso { border-bottom: none; }

    .columna-curso .llista-temes {
        display: block;
        background: transparent;
    }

    .titol-curso {
        font-size: var(--mida-m);
        font-weight: 600;
        border-bottom: 2px solid var(--color-principal);
    }

    .titol-curso span {
        font-size: var(--mida-m);
        font-weight: 600;
    }

    .llista-temes li a {
        color: var(--color-text);
        text-align: left;
    }

    .llista-temes li a:hover {
        color: var(--color-hover);
    }

    .cap-tema {
        padding: 12px 0;
        color: #666;
        font-size: var(--mida-sm);
    }

    .megamenu-grid.cols-1 { grid-template-columns: 1fr; }
    .megamenu-grid.cols-2 { grid-template-columns: 1fr 1fr; }
    .megamenu-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

    .megamenu-grid.many {
        display: flex;
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 12px;
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }

    .megamenu-grid.many::-webkit-scrollbar { height: 6px; }
    .megamenu-grid.many::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
    .megamenu-grid.many::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.3); border-radius: 3px; }

    .megamenu-grid.many .columna-curso {
        flex: 0 0 220px;
        min-width: 200px;
    }

    /* PC Cercador */
    .buscador-pc { display: block; }

    .btn-lupa {
        background: none;
        border: none;
        font-size: var(--mida-icona);
        cursor: pointer;
        padding: 5px;
        border-radius: var(--radi-petit);
        color: var(--color-blanc);
    }

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

    .btn-lupa:focus-visible {
        outline: 2px solid var(--color-blanc);
        outline-offset: 4px;
    }

    .buscador-dropdown {
        display: none;
        position: absolute;
        top: 100%;
        left: 50%;
        transform: translateX(-50%);
        width: 90vw;
        max-width: 1150px;
        background: var(--color-principal);
        border-radius: var(--radi-boto);
        box-shadow: var(--ombra-menu);
        z-index: 1001;
    }

    .buscador-dropdown.obert {
        display: block;
        margin-top: -15px;
    }

    .buscador-dropdown-contingut { padding: 20px; }

    #buscador-input-pc {
        width: 100%;
        box-sizing: border-box;
        border: none;
        background: transparent;
        border-radius: var(--radi-input);
        padding: 12px 20px;
        font-size: var(--mida-m);
        color: var(--color-blanc);
        outline: none;
    }

    #buscador-input-pc::placeholder { color: rgba(255, 255, 255, 0.6); }

    .buscador-dropdown-resultats {
        display: none;
        margin-top: 10px;
        max-height: 60vh;
        overflow-y: auto;
    }

    .buscador-dropdown-resultats.actiu { display: block; }

    .buscador-dropdown-resultats .resultat-item {
        display: block;
        padding: 12px 15px;
        color: var(--color-blanc);
        text-decoration: none;
        border-radius: var(--radi-item);
        font-size: var(--mida-sm);
   /*      transition: background 0.2s; */
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .buscador-dropdown-resultats .resultat-item:hover {
        padding: 12px 15px;
    }

    .buscador-dropdown-resultats .resultat-titol {
/*         font-weight: 500; */
        margin-bottom: 2px;
        font-size: var(--mida-m);
    }

    .buscador-dropdown-resultats .resultat-titol:hover {
      color: var(--color-hover) !important;
    }


    .buscador-dropdown-resultats .resultat-ruta {
        font-size: var(--mida-xs);
        opacity: 0.6;
    }

    .buscador-dropdown-resultats .resultat-no-contingut {
        padding: 20px;
        text-align: center;
        color: rgba(255, 255, 255, 0.5);
        font-size: var(--mida-sm);
    }

    .buscador-overlay {
        display: none !important;
    }
}

/* =========================================
   PEU DE PÀGINA (FOOTER)
   ========================================= */
.peu-pagina {
    margin-top: auto;
    background-color: var(--color-principal);
}

/* Barra longitudinal: tot el footer en el color principal, amb copyright i enllaços junts */
.peu-bar {
    background-color: var(--color-principal);
    color: var(--color-blanc);
    text-align: center;
    padding: 16px 20px;
    box-shadow: var(--ombra-menu-top);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.mode-nit .peu-bar {
    border-top: var(--vora-caixa);
}

.peu-copyright {
    margin: 0 0 10px;
    font-size: var(--mida-sm);

}

.peu-nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px 30px;
}

.peu-nav a {
    color: var(--color-blanc);
    text-decoration: none;
    font-size: var(--mida-sm);
    padding: 4px 2px;
    transition: color 0.2s ease, opacity 0.2s ease;
}

.peu-nav a:hover {
    color: var(--color-hover);
}

@media (max-width: 480px) {
    .peu-bar {
        padding: 12px 16px;
    }

    .peu-nav {
        gap: 6px 20px;
    }
}

/* =========================================
   SECCIONS D'INFORMACIÓ AL PANEL
   (estil de text com a la teoria, no en pastilla)
   ========================================= */
.caixa-info {
    width: 100%;
    max-width: 800px;
    background: var(--color-blanc);
    padding: 40px;
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-caixa);
    border: var(--vora-caixa);
    box-sizing: border-box;
    word-break: break-word;
    overflow-wrap: break-word;
    text-align: left;
    margin-top: 25px;
}

@media (max-width: 480px) {
    .caixa-info {
        border-radius: 0 !important;
        box-shadow: none !important;
        border: none !important;
    }
}


.caixa-info h2 {
    color: var(--color-principal);
    font-size: var(--mida-h2);
    text-align: center;
    margin: 0 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.caixa-info p {
    font-size: var(--mida-p);
    line-height: 1.7;
    margin: 0 0 16px;
    color: var(--color-text);
}

.caixa-info p:last-child {
    margin-bottom: 0;
}

.caixa-info a {
    color: var(--color-principal);
}

/* ====== Progrés de minijocs per bloc/contingut ====== */
.progres-contenidor {
    display: flex;
    flex-direction: column;
    gap: 18px;
    margin-top: 20px;
}

.progres-bloc {
    background: rgba(0, 0, 0, 0.03);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 10px;
    padding: 14px 16px;
}

.progres-cap {
    margin-bottom: 8px;
}

.progres-nom {
    font-weight: 700;
    font-size: var(--mida-p);
    color: var(--color-principal);
}

.progres-bar {
    height: 18px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 9px;
    overflow: hidden;
    margin-bottom: 6px;
}

.progres-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-principal, #0a5c8a), #4eb3e0);
    border-radius: 9px;
    min-width: 0;
    transition: width 0.3s ease;
}

.progres-dades {
    font-size: var(--mida-m);
    color: var(--color-text);
    margin-bottom: 10px;
}


.progres-conts {
    display: flex;
    flex-direction: column;
    gap: 6px;
    border-top: 1px dashed rgba(0, 0, 0, 0.12);
    padding-top: 10px;
}

.progres-con {
    display: flex;
    flex-direction: column;
    gap: 3px;
    font-size: var(--mida-xs);
    color: var(--color-text);
}

.progres-con-cap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.progres-con-nom {

}

.progres-con-bar {
    display: block;
    height: 12px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    overflow: hidden;
}

.progres-con-bar .progres-fill {
    border-radius: 6px;
    display: block;
}

.progres-con-dades {
    white-space: nowrap;
    opacity: 0.85;
}

.caixa-info .pendent {
    display: none;
    margin-top: 20px;
    font-style: italic;
    font-size: var(--mida-sm);
    opacity: 0.6;
}

@media (max-width: 600px) {
    .caixa-info {
        padding: 0px;
    }
}

/* =========================================
   CERCADOR OVERLAY
   ========================================= */
.buscador-overlay {
    position: fixed;
    top: -120%;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 3000;
    transition: top 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 10vh;
}

.buscador-overlay.actiu { top: 0; }

.buscador-contingut {
    width: 90%;
    max-width: 800px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border-radius: var(--radi-input);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--ombra-modal);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-height: 80vh;
    animation: slideDown 0.45s cubic-bezier(0.16, 1, 0.3, 1);
}

.mode-nit .buscador-contingut {
    background: rgba(25, 25, 25, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.buscador-capcelera {
    display: flex;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.mode-nit .buscador-capcelera {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.buscador-icona-gran {
    font-size: var(--mida-icona-gran);
    color: var(--color-principal);
    margin-right: 15px;
}

#buscador-input {
    flex-grow: 1;
    border: none !important;
    background: transparent !important;
    font-size: var(--mida-cercador) !important;
    color: var(--color-text) !important;
    outline: none !important;
    padding: 10px 0 !important;
    margin: 0 !important;
}

#buscador-input::placeholder {
    color: rgba(128, 128, 128, 0.6);
}

.tancar-buscador {
    background: none;
    border: none;
    font-size: var(--mida-tancar);
    color: var(--color-text);
    cursor: pointer;
    padding: 5px;
    opacity: 0.7;
    transition: opacity 0.2s, transform 0.2s;
}

.tancar-buscador:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.tancar-buscador:focus-visible {
    outline: 2px solid var(--color-principal);
    outline-offset: 2px;
    border-radius: var(--radi-petit);
}

/* Resultats de cerca */
.buscador-resultats {
    flex-grow: 1;
    overflow-y: auto;
    padding: 15px 0;
    max-height: 55vh;
}

.resultat-item {
    display: block;
    padding: 18px 25px;
    text-decoration: none;
    color: var(--color-text);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    transition: background 0.2s, padding-left 0.2s;
}

.mode-nit .resultat-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.resultat-item:hover {
    background: rgba(0, 78, 124, 0.06);
    padding-left: 35px;
}

.mode-nit .resultat-item:hover {
    background: rgba(79, 163, 209, 0.1);
}

.resultat-titol {
    font-size: var(--mida-resultat);
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--color-blanc);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.resultat-ruta {
    font-size: var(--mida-xsm);
    color: var(--color-blanc);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.mode-nit .resultat-ruta {
    color: rgba(220, 220, 220, 0.95);
}

.resultat-no-contingut {
    padding: 40px;
    text-align: center;
    color: rgba(60, 60, 60, 0.95);
    font-size: var(--mida-h5);
    font-style: italic;
}

/* =========================================
   BARRA DE CATEGORIES (SWITCH)
   ========================================= */
.barra-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 8px 0; /* sólo separación vertical */
    padding: 10px 18px;
    background: var(--color-blanc);
    border-radius: var(--radi-targeta) var(--radi-targeta) 0 0;
    border: var(--vora-caixa);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.sidebar-block {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    gap: 0;
}

.sidebar-block .barra-categories + .index-lateral {
    border-top: none;
    border-radius: 0 0 var(--radi-targeta) var(--radi-targeta);
}

.cat-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    font-size: 15px;
    font-family: inherit;
    color: var(--color-text);
    transition: all 0.2s ease;
    user-select: none;
}

.cat-toggle:hover {
    border-color: var(--color-principal);
    background: rgba(0, 78, 124, 0.04);
}

.cat-toggle.actiu {
    background: var(--color-principal);
    color: var(--color-blanc);
    border-color: var(--color-principal);
}

/* Colors per categoria (mode actiu) */
.cat-toggle.actiu[data-categoria="definicio"]  { background: var(--color-principal); border-color: var(--color-principal); }
.cat-toggle.actiu[data-categoria="text_pla"]    { background: var(--color-principal); border-color: var(--color-principal); }
.cat-toggle.actiu[data-categoria="exemples"]    { background: var(--color-griset); border-color: var(--color-griset); }
.cat-toggle.actiu[data-categoria="generador"]   { background: var(--color-principal); border-color: var(--color-principal); }
.cat-toggle.actiu[data-categoria="activitats"]  { background: var(--color-principal); border-color: var(--color-principal); }
.cat-toggle.actiu[data-categoria="important"]   { background: #e74c3c;  border-color: #e74c3c; }
.cat-toggle.actiu[data-categoria="consell_pau"] { background: var(--color-secundari); border-color: var(--color-secundari); }

.cat-toggle.actiu:hover {
    filter: brightness(0.85);
}

.cat-toggle.inactiu {
    opacity: 0.5;
    border-style: dashed;
}

.cat-toggle.inactiu:hover {
    opacity: 1;
    border-style: solid;
}

/* Seccions de categoria (contingut) */
.seccio-categoria {
    transition: opacity 0.25s ease;
}

.seccio-categoria.amagada {
    display: none;
}

/* Definicions: requadre propi */
.seccio-definicio {
  background: color-mix(in srgb, var(--color-principal) 5%, transparent);
  padding: 20px;
  margin: 20px 0;
  border-radius: 12px;
  border-left: 5px solid var(--color-principal);
}

.seccio-definicio > *:first-child {
    margin-top: 0;
}

.seccio-definicio > *:last-child {
    margin-bottom: 0;
}

.mode-nit .seccio-definicio {
    background: color-mix(in srgb, var(--color-principal) 5%, transparent);
    border-left: 5px solid var(--color-principal);
}

/* Consells PAU: requadre propi */


.seccio-consell_pau {
  background: color-mix(in srgb, var(--color-secundari) 5%, transparent);
  padding: 20px;
  margin: 20px 0;
  border-radius: 12px;
  border-left: 5px solid var(--color-secundari);
}

.seccio-consell_pau > *:first-child {
    margin-top: 0;
}

.seccio-consell_pau > *:last-child {
    margin-bottom: 0;
}

.mode-nit .seccio-consell_pau {
    background: color-mix(in srgb, var(--color-secundari) 5%, transparent);
    border-left: 5px solid var(--color-secundari);
}

/* =========================================
   ACTIVITATS (pill style)
   ========================================= */
.activitats-llista {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pill-header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pill-title {
    margin: 0;
    font-size: var(--mida-p);
    line-height: 1.4;
}

/* El chevron de les pills d'activitats s'elimina
   (estil unificat amb les pills dels minijocs) */
.pill-header.requadre-contingut .pill-header-top i.fas.fa-chevron-down {
    display: none;
}

/* Pills d'activitats amb el mateix aspecte que les pills dels minijocs (.mj-pill) */
.pill-header.requadre-contingut {
    background: var(--color-blanc);
    border: var(--vora-caixa);
    /* box-shadow: var(--ombra-caixa); */
    border-radius: var(--radi-targeta);
    padding: 16px 18px;
    margin: 0 0 12px;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    box-sizing: border-box;
}

.pill-header.requadre-contingut:hover {
    border-color: var(--color-principal);
}

/* Dins dels resultats d'exercicis (.layout-exercicis .requadre-contingut força margin 0) */
.activitats-llista .pill-header.requadre-contingut {
    margin: 0 0 12px;
}

/* Primera línia: icones (llapis) i (pàgina); segona línia: l'enunciat */
.pill-title strong {
    display: block;
    font-weight: 600;
    color: var(--color-principal);
    margin-bottom: 4px;
}

.pill-title strong i {
    color: var(--color-principal);
}

/* Solució dins del pill-header, col·lapsable (sense banda lateral) */
.pill-header.requadre-contingut .solucion-box {
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease-out;
    padding: 0 15px;
    margin: 0;
    border: none;
}

.exercise-pill.active .pill-header.requadre-contingut .solucion-box {
    max-height: 2000px;
    padding: 15px;
    margin-top: 15px;
}

.mode-nit .pill-header.requadre-contingut {

}

.pill-header-bottom {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    font-size: 0.85em;
    text-align: right;
/*     background-color: var(--color-blanc); */
}

.exercise-id {
    margin: 1px 0;
}

.meta-tags {
    display: flex;
    gap: 10px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.tag {
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.9em;
}

.tag-prob {
    color: var(--color-secundari);
}

.tag-pau {
    color: var(--color-principal);
}

.tag-imp {
    color: var(--color-secundari);
}

.tag-olimp {
    color: #f1c40f;
}

.mode-nit .tag-pau {
    color: #4fa3d1;
}

.mode-nit .tag-olimp {
    color: #f1c40f;
}

/* =========================================
   GENERADOR (requadre)
   ========================================= */
.generador-llista {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.generador-item {
    background: #f9f9f9;
    border: 1px dashed #ccc;
    border-radius: 12px;
    padding: 16px 20px;
    text-align: center;
}

.generador-item pre {
    margin: 0;
    font-size: 0.9rem;
}

.mode-nit .generador-item {
    background: #1e1e1e;
    border-color: #444;
}

/* Mode fosc */
.mode-nit .barra-categories {
    background: #1e1e1e;
    border-color: rgba(255, 255, 255, 0.08);
}

.mode-nit .cat-toggle {
    color: rgba(255, 255, 255, 0.8);
    border-color: rgba(255, 255, 255, 0.15);
}

.mode-nit .cat-toggle:hover {
    border-color: var(--color-principal);
    background: rgba(0, 78, 124, 0.15);
}

.mode-nit .cat-toggle.actiu {
    background: var(--color-principal);
    color: var(--color-blanc);
    border-color: var(--color-principal);
}

.mode-nit .cat-toggle.actiu[data-categoria="definicio"]  { background: var(--color-principal); border-color: var(--color-principal); }
.mode-nit .cat-toggle.actiu[data-categoria="text_pla"]    { background: var(--color-principal); border-color: var(--color-principal); }
.mode-nit .cat-toggle.actiu[data-categoria="exemples"]    { background: var(--color-principal); border-color: var(--color-principal); }
.mode-nit .cat-toggle.actiu[data-categoria="generador"]   { background: var(--color-principal); border-color: var(--color-principal); }
.mode-nit .cat-toggle.actiu[data-categoria="activitats"]  { background: var(--color-principal); border-color: var(--color-principal); }
.mode-nit .cat-toggle.actiu[data-categoria="important"]   { background: #c0392b;  border-color: #c0392b; }
.mode-nit .cat-toggle.actiu[data-categoria="consell_pau"] { background: #d35400;  border-color: #d35400; }

/* =========================================
   MÒBIL (≤600px) — Barra de categories
   ========================================= */
@media (max-width: 600px) {
    .barra-categories {
        padding: 6px 10px;
        gap: 4px;
        border-radius: 0;
        margin-top: 0;
    }

    .cat-toggle {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }

    .sidebar-block .barra-categories + .index-lateral {
        border-radius: 0;
    }
}

@media (min-width: 1024px) {
    .sidebar-block {
        width: 300px;
        flex-shrink: 0;
    }
}

@media (max-width: 1023px) {
    :root {
        --mida-cercador: 1.2rem;
        --mida-resultat: 1.05rem;
    }

        .llista-temes li a {
    font-size: var(--mida-m);
    padding: 15px 20px;
    margin-left: 20px;
    }

    .titol-curso span {
        text-align: left;
        font-size: var(--mida-m);
        margin-left: 10px;
    }

    .buscador-overlay { padding-top: 5vh; }
    .buscador-contingut { width: 95%; max-height: 90vh; }
    .buscador-capcelera { padding: 15px; }
    #buscador-input { font-size: var(--mida-cercador) !important; }
    .resultat-item { padding: 15px; }
    .resultat-titol { font-size: var(--mida-resultat); }
}

/* =========================================
   MÒBIL (≤600px)
   ========================================= */
@media (max-width: 600px) {
    .llista-temes li a {
    font-size: var(--mida-xsm);
    padding: 15px 20px;
    margin-left: 20px;
    }

    .titol-curso span {
        text-align: left;
        font-size: var(--mida-xsm);
        margin-left: 10px;
    }
}

/* =========================================
   MÒBIL MOLT PETIT (≤480px)
   ========================================= */
@media (max-width: 480px) {
    .capcalera {
        padding: 8px 10px;
    }

    :root {
        --mida-logo: 1.2rem;
    }

    .logo a {
        font-size: var(--mida-logo);
    }

    .info-usuari {
        display: none;
    }
}

/* =========================================
   ANIMACIONS
   ========================================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Respectar preferència de moviment reduït */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* =========================================
   EXERCICIS (buscador global) — exercicis.php
   ========================================= */
.layout-exercicis {
    display: grid;
    grid-template-columns: minmax(280px, 340px) 1fr;
    gap: 30px;
    padding: 20px;
    max-width: 1400px;
    width: 100%;
    box-sizing: border-box;
    margin: 0 auto;
    align-items: flex-start;
    margin-top: 25px;
}

@media (max-width: 480px) {
    .buscador-lupa{
        flex: 1 !important;
        margin: 0 !important;
        width: 100% !important;
    }
}

.bloc-filtre {
    background: var(--color-blanc);
    border: var(--vora-caixa);
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-caixa);
    padding: 18px;
    margin-bottom: 16px;
    box-sizing: border-box;
}

.bloc-filtre h3 {
    margin: 0 0 12px;
    font-size: 1rem;
    color: var(--color-principal);
    border-bottom: 2px solid var(--color-principal);
    padding-bottom: 6px;
}

.bloc-filtre h4 {
    margin: 14px 0 6px;
    font-size: 0.9rem;
    color: var(--color-text);
    opacity: 0.85;
}

.llista-opcions {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 240px;
    overflow-y: auto;
    scrollbar-width: thin;
}

.opcio {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 5px 8px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.92em;
    line-height: 1.35;
    transition: background 0.15s ease;
}

.opcio:hover {
    background: rgba(0, 78, 124, 0.06);
}

.opcio input {
    accent-color: var(--color-principal);
    width: 16px;
    height: 16px;
    margin-top: 2px;
    flex-shrink: 0;
}

.opcio-sub {
    padding-left: 26px;
}

.grup-curs {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed rgba(0, 0, 0, 0.12);
}

.grup-curs:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.buscador-lupa {
    position: relative;
    margin-bottom: 10px;
}

.buscador-lupa input {
    width: 100%;
    padding: 9px 10px 9px 34px;
    border: var(--vora-caixa);
    border-radius: 8px;
    font-family: inherit;
    font-size: 0.92em;
    background: var(--color-blanc);
    color: var(--color-text);
    box-sizing: border-box;
}

.buscador-lupa i {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: #999;
    font-size: 0.85em;
    pointer-events: none;
}

.seg-control {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.seg-control button {
    padding: 7px 12px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 20px;
    background: transparent;
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.85em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.seg-control button:hover {
    border-color: var(--color-principal);
}

.seg-control button.actiu {
    background: var(--color-principal);
    border-color: var(--color-principal);
    color: var(--color-blanc);
}

.columna-resultats {
    min-width: 0;
}

.capsalera-resultats {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.capsalera-resultats h2 {
    margin: 0;
    color: var(--color-principal);
}

.comptador {
    font-size: 0.9em;
    opacity: 0.8;
}

.grup-activitats {
    margin-bottom: 25px;
    margin-top: 25px;
}

.grup-titol {
    color: var(--color-principal);
    font-size: 1.05rem;
    margin: 0 0 12px;
    padding-bottom: 6px;
    border-bottom: 2px solid var(--color-principal);
}

.missatge {
    padding: 25px;
    text-align: center;
    background: var(--color-blanc);
    border: var(--vora-caixa);
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-caixa);
    color: var(--color-text);
    opacity: 0.85;
}

.ocult {
    display: none !important;
}

.btn-netejar {
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 8px;
    background: transparent;
    color: var(--color-text);
    font-family: inherit;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-netejar:hover {
    border-color: #e74c3c;
    color: #e74c3c;
}

/* Els requadres dels resultats d'exercicis van amb margin 0
   (la base .requadre-contingut està a la secció TEORIA) */
.layout-exercicis .requadre-contingut {
    margin: 0;
}

@media (max-width: 960px) {
    .layout-exercicis {
        grid-template-columns: 1fr;
        padding: 25px;
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .capsalera-resultats {
        flex-direction: column;
        align-items: center;
    }
}

/* =========================================
   TEORIA (layout de la pàgina) — teoria.php
   ========================================= */
.layout-teoria {
    margin-top: 25px;
    display: flex;
    flex-direction: column;
    gap: 30px;
    padding: 20px;
    max-width: 1200px;
    width: 100%;
    box-sizing: border-box;
    margin: 0 auto;
    margin-top: 25px;
}

@media (max-width: 600px) {
    .layout-teoria {
        padding: 0;
        gap: 0;
    }

    .contingut-principal {
        border-radius: 0 !important;
        box-shadow: none !important;
        border: none !important;
        padding: 25px !important;
        margin-bottom: 0px !important;
    }

    .sidebar-block {
        margin-top: 0;
    }

    .sidebar-block .index-lateral {
        border-radius: 0;
        box-shadow: none;
        border: none;
    }

    .teoria-body {
        scrollbar-width: none;
    }

    .teoria-body::-webkit-scrollbar {
        display: none;
    }

    .layout-teoria {
    margin-top: 0px;
    }

    .barra-categories{
    padding: 40px 25px 25px 25px;
    gap: 4px;
    border-radius: 0;
    margin-top: 0;   
    }

}

@media (min-width: 1024px) {
    .layout-teoria {
        flex-direction: row-reverse;
        align-items: flex-start;
        margin-top: 25px;
    }

    /* La pastilla lateral (switches + índex) acompanya l'usuari durant el scroll */
    .sidebar-block {
        position: sticky;
        top: 70px;
        max-height: calc(100vh - 90px);
        overflow-y: auto;
        scrollbar-width: thin;
        scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
    }
}

.contingut-principal {
    flex: 1;
    min-width: 0;
    background: var(--color-blanc);
    padding: 40px;
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-caixa);
    border: var(--vora-caixa);
    box-sizing: border-box;
    word-break: break-word;
    overflow-wrap: break-word;
}

.index-lateral {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    background: var(--color-blanc);
    padding: 0px 25px 25px 25px;
    border-radius: var(--radi-targeta);
    box-shadow: var(--ombra-caixa);
    border: var(--vora-caixa);
}

@media (min-width: 1024px) {
    .teoria-body {
        scrollbar-width: thin;
        scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
    }

    .teoria-body::-webkit-scrollbar {
        height: 6px;
    }

    .teoria-body::-webkit-scrollbar-thumb {
        background: rgba(0, 0, 0, 0.2);
        border-radius: var(--radi-petit);
    }

    .teoria-body::-webkit-scrollbar-track {
        background: transparent;
    }

    .mode-nit .teoria-body::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.2);
    }
}

.index-lateral h3 {
    font-size: var(--mida-icona);
    margin-bottom: 15px;
    color: var(--color-principal);
    border-bottom: 2px solid var(--color-principal);
    padding-bottom: 5px;
}

.index-lateral ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.index-lateral li {
    margin-bottom: 10px;
}

.index-lateral a {
    text-decoration: none;
    color: var(--color-text);
    font-size: var(--mida-nav);
    transition: color 0.2s;
}

.index-lateral a:hover {
    color: var(--color-principal);
}

/* Classes d'indentació per a l'índex */
.index-h2 { padding-left: 0; font-weight: 600; }
.index-h3 { padding-left: 15px; font-size: var(--mida-sm); }
.index-h4 { padding-left: 30px; font-size: var(--mida-xsm); }

/* Requadres de contingut */
.requadre-contingut {
    padding: 5px 20px 5px 20px;
    margin: 20px 0;
    border-radius: 12px;
    background: rgba(0, 78, 124, 0.05);
}

.requadre-exemple {
    background: color-mix(in srgb, var(--color-griset) 10%, transparent);
    padding: 5px 20px 5px 20px;
    margin: 20px 0;
    border-radius: 12px;
    border: 1px dashed var(--color-griset);
}

.mode-nit .requadre-exemple {
    background: color-mix(in srgb, var(--color-griset) 0%, transparent);
}

.requadre-important {
    background: rgba(231, 76, 60, 0.05);
    border-left: 5px solid #e74c3c;
}

.requadre-grafic {
    background: transparent;
    text-align: center;
}


.mode-nit .requadre-grafic {

}

.titol-tema {
    color: var(--color-principal);
    margin-bottom: 30px;
    text-align: center;
}

.resaltar {
    font-weight: bold;
    color: var(--color-principal);
}

.teoria-body {
    max-width: 100%;
    overflow-x: auto;
    word-break: break-word;
    overflow-wrap: break-word;
}

/* =========================================
   BOTÓ GENERADOR D'EXEMPLES (genèric)
   ========================================= */
.btn-exemples {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid var(--color-principal);
    border-radius: 999px;
    background: var(--color-blanc);
    color: var(--color-principal);
    font-family: inherit;
    font-size: var(--mida-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-exemples i {
    color: var(--color-secundari);
    transition: transform 0.3s ease;
}

.btn-exemples:hover {
    background: var(--color-principal);
    color: var(--color-blanc);
}

.btn-exemples:hover i {
    color: var(--color-hover);
    transform: rotate(180deg);
}

.btn-exemples:focus-visible {
    outline: 2px solid var(--color-principal);
    outline-offset: 2px;
}

/* Mode nit */
.mode-nit .btn-exemples {
    background: transparent;
    border-color: var(--color-principal);
    color: var(--color-principal);
}

.mode-nit .btn-exemples:hover {
    background: var(--color-principal);
    color: var(--color-blanc);
}