@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600&family=Montserrat:wght@600;700;800&display=swap');

*{
box-sizing:border-box;
}

html{
scroll-behavior:smooth;
}

body{
margin:0;
background:#131313;
color:white;
font-family:"Open Sans",sans-serif;
font-size:16px;
min-height:100vh;
display:flex;
flex-direction:column;
line-height:32px;
}

/* HEADER */

.topbar{
background:#131313;
display:flex;
align-items:center;
justify-content:space-between;
padding:18px 40px;
border-bottom:1px solid #B2D819;
position:relative;
z-index:1060;
}

.logo{
height:22px;
width:auto;
}

.menu{
display:flex;
align-items:center;
gap:25px;
}

.menu a{
color:white;
text-decoration:none;
font-size:15px;
}

.menu a:hover{
color:#B2D819;
}

.menu-admin{

color:#B2D819 !important;

}

.menu-admin:hover{

color:#d4ff3f !important;

}

/* DROPDOWN */

.dropdown{
position:relative;
z-index:1001;
}

.dropdown-content{
display:none;
position:absolute;
top:28px;
background:#1A1A1A;
border-radius:6px;
padding:10px 0;
min-width:180px;
box-shadow:0 10px 25px rgba(0,0,0,0.4);
z-index:1002;
}

.dropdown-content a{
display:block;
padding:10px 20px;
}

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

.dropdown-content--grid{
display:none;
grid-template-columns:1fr 1fr;
min-width:280px;
}

.dropdown:hover .dropdown-content--grid{
display:grid;
}

/* HERO */

.hero{
text-align:center;
padding:120px 20px 80px;
max-width:900px;
margin:auto;
}

.hero h1{
font-family:"Montserrat",sans-serif;
font-size:46px;
margin-bottom:10px;
}

.hero p{
opacity:0.85;
}

.btn{
display:inline-block;
margin-top:30px;
padding:14px 32px;
background:#B2D819;
color:#131313;
text-decoration:none;
border-radius:6px;
font-weight:bold;
transition:0.2s;
}

.btn:hover{
opacity:0.85;
transform:translateY(-1px);
}

/* FEATURES */

.features{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:30px;
max-width:1100px;
margin:80px auto;
}

.feature{

position:relative;

background:#1A1A1A;

padding:35px;

border-radius:10px;

text-align:center;

display:flex;
flex-direction:column;
justify-content:space-between;

min-height:220px;

box-shadow:0 4px 14px rgba(0,0,0,0.25);

transition:all 0.25s ease;

}

.feature:hover{

box-shadow:
0 10px 30px rgba(0,0,0,0.45),
0 0 8px rgba(178,216,25,0.15);

transform:translateY(-4px);

}

.feature h3{
font-family:"Montserrat",sans-serif;
color:#B2D819;
margin-bottom:10px;
}

.feature .btn{
margin-top:20px;
}

/* COURSE STATUS */

.course-status{

position:absolute;

top:14px;
right:14px;

width:8px;
height:8px;

border-radius:50%;

opacity:0.85;

}

.status-complete{

background:#B2D819;

box-shadow:0 0 4px rgba(178,216,25,0.7);

}

.status-dev{

background:#e6c15a;

box-shadow:0 0 4px rgba(230,193,90,0.6);

}

/* REPOSITORIO */

.repo-container{
max-width:1100px;
margin:auto;
padding:60px 20px;
}

.manual-card{
background:#1A1A1A;
padding:35px;
border-radius:10px;
max-width:500px;
margin:auto;
text-align:center;
}

.repo-grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:25px;
margin-top:60px;
}

.repo-card{
background:#1A1A1A;
padding:30px;
border-radius:10px;
}

.repo-card h3{
font-family:"Montserrat",sans-serif;
color:#B2D819;
text-align:center;
margin-bottom:15px;
}

.repo-card p{
color:white;
text-align:left;
line-height:26px;
margin-bottom:20px;
}

.repo-card a{
display:block;
background:#B2D819;
color:#131313;
padding:10px 18px;
border-radius:6px;
text-decoration:none;
text-align:center;
width:140px;
margin:auto;
font-weight:bold;
}

/* EXERCICIOS */

.sidebar-exercises{
width:120px;
min-width:120px;
flex-shrink:0;
position:sticky;
top:0;
max-height:100vh;
overflow-y:auto;
overflow-x:hidden;
padding:14px 7px 30px 7px;
align-self:flex-start;
z-index:90;
}

.sidebar-exercises::-webkit-scrollbar{
width:4px;
}

.sidebar-exercises::-webkit-scrollbar-track{
background:transparent;
}

.sidebar-exercises::-webkit-scrollbar-thumb{
background:#2a2a2a;
border-radius:4px;
}

.exercise-layout{
display:flex;
padding:14px 20px 40px;
}

.sidebar{
width:160px;
min-width:160px;
position:sticky;
top:120px;
height:fit-content;
}

.sidebar a{
display:block;
margin-bottom:12px;
color:white;
text-decoration:none;
font-size:14px;
}

.sidebar a:hover{
color:#B2D819;
}

.exercise-content{
flex:1;
padding-left:24px;
max-width:760px;
}

.exercise-content h1{
font-family:"Montserrat",sans-serif;
}

.exercise-content h2{
font-family:"Montserrat",sans-serif;
color:#B2D819;
margin-top:40px;
}

/* CODE */

pre{
background:#000;
padding:20px;
border-radius:6px;
overflow-x:auto;
color:#B2D819;
}

/* PROGRESS */

#progress-bar{
position:fixed;
top:0;
left:0;
height:4px;
background:#B2D819;
width:0%;
z-index:999;
}

.menu-ex.active{
color:#B2D819;
font-weight:bold;
}

/* EXERCISE NAV */

.exercise-nav{
display:flex;
justify-content:space-between;
align-items:center;
margin:40px 0;
padding:0 40px 0 240px;
}

.exercise-nav a{
background:#B2D819;
color:#131313;
padding:12px 20px;
border-radius:6px;
text-decoration:none;
font-weight:bold;
transition:0.2s;
}

.exercise-nav a:hover{
transform:translateY(-2px);
}


/* ADMIN COURSES */

/* Container do Grid */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 25px;
}

/* O item (Label) que envolve o checkbox e o texto */
.course-item {
    display: flex;
    align-items: center; /* Centraliza verticalmente o checkbox e o texto */
    gap: 12px;
    background: #1A1A1A; /* Cor de fundo igual aos cards */
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.course-item:hover {
    background: #222;
}

/* Estilo do Checkbox */
.course-item input[type="checkbox"] {
    margin: 0; /* Remove margens padrão do navegador que causam desalinhamento */
    width: 18px;
    height: 18px;
    accent-color: #B2D819;
    cursor: pointer;
    flex-shrink: 0; /* Garante que o checkbox não amasse se o texto for longo */
}

/* Estilo do Texto */
.course-item span {
    color: white;
    font-size: 15px;
    line-height: 1; /* Mantém a altura da linha controlada */
    user-select: none; /* Evita selecionar o texto ao clicar rápido */
}

/* Destaque quando selecionado */
.course-item:has(input:checked) {
    border-color: #B2D819;
    background: rgba(178, 216, 25, 0.05);
}

.course-item:active{

transform:scale(0.98);

}


.user-highlight{

color:#B2D819;

font-weight:bold;

background:rgba(178,216,25,0.08);

padding:4px 10px;

border-radius:6px;

}

.admin-input{

width:100%;
padding:12px;

background:#111;
border:1px solid #333;

color:white;

border-radius:6px;

font-size:14px;

margin-bottom:20px;

}

.admin-input:focus{

outline:none;

border-color:#B2D819;

}

/* FILE BUTTON */

.file-upload{

display:inline-block;

background:#111;

border:1px solid #333;

padding:12px 18px;

border-radius:6px;

cursor:pointer;

color:white;

transition:0.2s;

margin-bottom:25px;

}

.file-upload:hover{

border-color:#B2D819;

}

.file-upload input{

display:none;

}

/* botão file */

.file-upload span{

font-weight:bold;

}

/* upload box */

.upload-box{

background:#1A1A1A;

padding:40px;

border-radius:10px;

max-width:520px;

box-shadow:0 10px 30px rgba(0,0,0,0.4);

}

.file-name{

margin-top:10px;

font-size:14px;

color:#aaa;

}

.file-selected{

color:#B2D819;

font-weight:bold;

}

.repo-delete{

display:block;

margin-top:10px;

background:#ff4d4d;

color:white;

padding:8px;

border-radius:6px;

text-decoration:none;

text-align:center;

font-size:13px;

transition:0.2s;

}

.repo-delete:hover{

background:#ff2e2e;

}

/* ADMIN UI SYSTEM */

.admin-container{

max-width:1200px;
margin:auto;
padding:40px 20px;
flex:1;

}

.admin-card{

background:#1A1A1A;
padding:35px;
border-radius:12px;

box-shadow:
0 10px 25px rgba(0,0,0,0.35);

margin-bottom:30px;

}

.admin-title{

font-family:"Montserrat";
margin-bottom:25px;

}

.admin-form{

display:flex;
flex-direction:column;
gap:18px;

}

.admin-row{

display:flex;
gap:15px;

}

.admin-field{

flex:1;

}

.admin-input{

flex:1;

padding:12px;

background:#111;

border:1px solid #333;

border-radius:8px;

color:white;

font-size:14px;

}

.admin-input:focus{

outline:none;

border-color:#B2D819;

box-shadow:0 0 6px rgba(178,216,25,0.3);

}

.admin-select{

padding:12px;

background:#111;

border:1px solid #333;

border-radius:8px;

color:white;

width:100%;

}

.admin-button{

background:#B2D819;

color:#131313;

padding:14px;

border:none;

border-radius:8px;

font-weight:bold;

cursor:pointer;

transition:.2s;

}

.admin-button:hover{

transform:translateY(-2px);

box-shadow:
0 6px 18px rgba(178,216,25,0.3);

}

.btn-create{

display:inline-block;
min-height:42px;
background:#B2D819;
color:#131313;
padding:12px 20px;
border-radius:8px;
font-weight:bold;
text-decoration:none;
transition:.2s;
border:none;
cursor:pointer;
line-height:1;
display:inline-flex;
align-items:center;
justify-content:center;

}

.btn-create:hover{

transform:translateY(-2px);

box-shadow:
0 6px 18px rgba(178,216,25,0.3);

}

.btn-edit{

display:inline-flex;
align-items:center;
justify-content:center;
min-height:42px;
min-width:118px;
background:#B2D819;
color:#131313;
padding:8px 16px;
border-radius:6px;
text-decoration:none;
font-weight:bold;
transition:.2s;
border:none;
cursor:pointer;
line-height:1;
font-size:15px;
text-align:center;
font-family:"Open Sans",sans-serif;
appearance:none;
vertical-align:middle;

}

.btn-edit:hover{

transform:translateY(-1px);

}

.btn-delete{

display:inline-flex;
align-items:center;
justify-content:center;
min-height:42px;
min-width:118px;
background:#ff4d4d;
color:white;
padding:8px 16px;
border-radius:6px;
text-decoration:none;
font-weight:bold;
transition:.2s;
border:none;
cursor:pointer;
line-height:1;
font-size:15px;
text-align:center;
font-family:"Open Sans",sans-serif;
appearance:none;
vertical-align:middle;

}

.btn-delete:hover{

background:#ff2e2e;

}

.btn-delete:disabled{

background:#5a5a5a;
cursor:not-allowed;
opacity:.7;

}

.btn-muted{

display:inline-flex;
align-items:center;
justify-content:center;
min-height:42px;
min-width:118px;
background:#4a4a4a;
color:white;
padding:8px 16px;
border-radius:6px;
text-decoration:none;
font-weight:bold;
line-height:1;
font-size:15px;

}

.btn-muted:hover{

background:#5a5a5a;

}

.admin-label{

font-size:14px;

opacity:.7;

}

.admin-divider{

height:1px;

background:#2a2a2a;

margin:25px 0;

}

.admin-success{

color:#B2D819;

background:rgba(178,216,25,.08);

padding:12px;

border-radius:6px;

}

.admin-error{

color:#ff8f8f;
background:rgba(255,77,77,.12);
padding:12px;
border-radius:6px;
margin-bottom:18px;

}

.admin-warning{

color:#e6c15a;

}

.logo-link,
.logo-link:visited,
.logo-link:hover,
.logo-link:active {
  text-decoration: none;
  color: #ffffff;
  display: flex;
  align-items: center;
}

.brand-text{
font-family:'Montserrat', sans-serif;
font-size:22px;
font-weight:700;
letter-spacing:.05em;
color:#ffffff;
line-height:1;
text-transform:none;
transition:.2s;
display:inline-block;
}

.logo-link:hover .brand-text{
color:#B2D819;
transform:translateY(-1px);
}

.logo{
  
  transition:.2s;
  
  }

.logo:hover{

opacity:.8;

transform:scale(1.03);

}

.top-actions{

display:flex;
justify-content:space-between;
align-items:center;
margin-bottom:25px;

}

.back-btn,
.finish-btn{

display:inline-flex;
align-items:center;
justify-content:center;
min-height:44px;
padding:12px 22px;
border-radius:8px;
text-decoration:none;
font-weight:bold;
font-size:14px;

}

.back-btn{

background:#333;
color:white;

}

.back-btn:hover{

background:#444;

}

.finish-btn{

background:#B2D819;
color:#131313;

}

.finish-btn:hover{

transform:translateY(-1px);
box-shadow:0 6px 18px rgba(178,216,25,0.3);

}

.password-field{

position:relative;

}

.password-field .admin-input{

margin-bottom:0;
padding-right:110px;

}

.form-decoy{

position:absolute;
left:-9999px;
width:1px;
height:1px;
opacity:0;
pointer-events:none;

}

.password-toggle{

position:absolute;
right:8px;
top:50%;
transform:translateY(-50%);
min-height:34px;
padding:0 14px;
border:none;
border-radius:6px;
background:#333;
color:white;
font-weight:bold;
cursor:pointer;

}

.password-toggle:hover{

background:#444;

}

.admin-toolbar{

display:flex;
justify-content:flex-start;
align-items:center;
gap:20px;
flex-wrap:wrap;

}

.admin-search{

display:flex;
align-items:center;
gap:12px;
flex-wrap:wrap;
margin-left:auto;

}

.admin-search-input{

min-width:240px;
margin-bottom:0;
min-height:42px;
height:42px;

}


.user-card{

padding:24px 26px;

}

.user-row{

display:flex;
justify-content:space-between;
align-items:center;
gap:20px;

}

.user-details{

display:flex;
flex-direction:column;
gap:6px;

}

.user-headline{

display:flex;
align-items:center;
gap:10px;
flex-wrap:wrap;

}

.user-meta{

line-height:1.5;
opacity:.9;

}

.user-active-badge{

display:inline-flex;
align-items:center;
justify-content:center;
padding:4px 10px;
border-radius:999px;
background:rgba(178,216,25,.12);
color:#B2D819;
font-size:13px;
font-weight:bold;
line-height:1;

}

.user-actions{

display:flex;
gap:12px;
align-items:center;
flex-wrap:wrap;

}

.user-actions form{

margin:0;
display:flex;
align-items:center;

}

.btn-user-action{

width:118px;
height:42px;

}

.test-card{

background:#1A1A1A;
padding:25px;
border-radius:10px;
margin-bottom:25px;

}

.test-actions{

display:flex;
gap:12px;
flex-wrap:wrap;
align-items:center;
margin-top:18px;

}

.test-actions form{

margin:0;
display:flex;

}

.import-choice-grid{

display:grid;
grid-template-columns:repeat(2, minmax(0, 1fr));
gap:18px;

}

.import-choice-card{

display:block;
background:#111;
border:1px solid #2b2b2b;
border-radius:12px;
padding:24px;
text-decoration:none;
color:white;
transition:.2s;

}

.import-choice-card h3{

margin:0 0 10px;
font-family:"Montserrat",sans-serif;
color:#B2D819;

}

.import-choice-card p{

margin:0;
line-height:1.7;
opacity:.86;

}

.import-choice-card:hover{

border-color:#B2D819;
transform:translateY(-2px);
box-shadow:0 10px 24px rgba(0,0,0,0.28);

}

.access-denied-page{

min-height:100vh;
display:flex;
align-items:center;
justify-content:center;
padding:40px 20px;

}

.access-denied-card{

width:100%;
max-width:560px;
background:#1A1A1A;
border-radius:14px;
padding:42px 36px;
box-shadow:0 12px 30px rgba(0,0,0,0.35);
text-align:center;

}

.access-denied-card h1{

margin:0 0 16px;
font-family:"Montserrat",sans-serif;
color:#B2D819;
line-height:1.2;

}

.access-denied-card p{

margin:0 0 24px;
color:rgba(255,255,255,0.82);
line-height:1.7;

}


/* Faz a página ocupar toda a altura */
html, body {
    height: 100%;
}

/* Estrutura principal */
.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Conteúdo cresce e empurra o rodapé */
.site-content {
    flex: 1;
}

/* Rodapé fica sempre no fundo */
.site-footer {
    margin-top: auto;
}

/* Paginação admin */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 28px 0 8px;
}

.page-btn {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: #1e1e1e;
    color: #B2D819;
    border: 1px solid rgba(178, 216, 25, 0.3);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
    transition: background 0.2s, border-color 0.2s;
}

.page-btn:hover {
    background: rgba(178, 216, 25, 0.1);
    border-color: #B2D819;
}

.page-info {
    font-size: 14px;
    color: #999;
}

/* LANGUAGE SWITCHER */

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 10px;
    padding-left: 14px;
    border-left: 1px solid rgba(255, 255, 255, 0.14);
    flex-shrink: 0;
}

.lang-btn {
    font-size: 21px;
    line-height: 1;
    opacity: 0.42;
    transition: opacity 0.2s, transform 0.15s;
    text-decoration: none;
    display: flex;
    align-items: center;
    cursor: pointer;
    background: none;
    border: none;
    padding: 2px;
    border-radius: 4px;
}

.lang-btn:hover {
    opacity: 0.82;
    transform: scale(1.1);
    color: inherit;
}

.lang-btn.lang-active {
    opacity: 1;
    cursor: default;
    transform: none;
}

/* Fix button widths so English labels ("Cannot Delete") fit without overflow */
.btn-user-action {
    min-width: 118px;
    width: auto;
}

/* Admin table (courses) */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #222;
}

.admin-table th {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: #888;
    font-weight: 700;
}

.admin-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.025);
}

.admin-table tbody tr:last-child td {
    border-bottom: none;
}

/* ── CTA solicitud en página de inicio ────────────────────── */
.request-shortcut .elementor-button {
    background: transparent !important;
    color: #B2D819 !important;
    font-weight: 700;
    font-size: 15px;
    padding: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    text-decoration: none;
    transition: color .2s;
}

.request-shortcut .elementor-button:hover {
    background: transparent !important;
    color: #c6ef22 !important;
    box-shadow: none;
    transform: none;
}

/* ── MONITOR GRANDE ───────────────────────────────────────── */
@media (min-width: 1500px) {

    .exercise-content {
        max-width: none;
    }

    .exercise-layout {
        max-width: 1300px;
    }
}

/* ── RESPONSIVO TABLET ────────────────────────────────────── */
@media (max-width: 1100px) {

    .sidebar-exercises {
        width: 120px;
    }

    .exercise-layout {
        margin-left: 0;
    }

    .has-exercise-sidebar .platform-footer {
        padding-left: 150px;
    }

    .exercise-nav {
        padding-left: 130px;
    }
}

@media (max-width: 900px) {

    .sidebar-exercises {
        display: none;
    }

    .exercise-layout {
        margin-left: 0;
    }

    .has-exercise-sidebar .platform-footer {
        padding-left: 30px;
    }

    .exercise-nav {
        padding-left: 40px;
    }
}

/* ── HAMBURGER ────────────────────────────────────────────── */

.menu-overlay {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    transition: background .2s;
    z-index: 1200;
    position: relative;
}

.hamburger:hover {
    background: rgba(255,255,255,0.08);
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    border-radius: 2px;
    transition: transform .25s, opacity .25s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── RESPONSIVO MÓVIL ─────────────────────────────────────── */
@media (max-width: 768px) {

    body {
        font-size: 15px;
        line-height: 1.7;
    }

    /* TOPBAR */
    .topbar {
        padding: 14px 20px;
        position: relative;
    }

    .hamburger {
        display: flex;
    }

    /* MENU MOBILE — oculto por defeito, aparece como painel vertical */
    .menu {
        display: none;
        flex-direction: column;
        gap: 0;
        position: fixed;
        top: 0;
        right: 0;
        width: 85vw;
        max-width: 280px;
        height: 100vh;
        background: #1a1a1a;
        border-left: 1px solid #2a2a2a;
        padding: 80px 0 40px;
        overflow-y: scroll;
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
        touch-action: pan-y;
        z-index: 1050;
        box-shadow: -8px 0 30px rgba(0,0,0,0.5);
    }

    .menu.menu-open {
        display: flex;
    }

    .menu a {
        font-size: 16px;
        padding: 14px 24px;
        border-bottom: 1px solid #222;
        display: block;
    }

    .menu a:hover {
        background: rgba(178,216,25,0.07);
    }

    /* Dropdown mobile — sempre expandido */
    .dropdown {
        display: flex;
        flex-direction: column;
    }

    .dropdown > a {
        border-bottom: 1px solid #222;
    }

    .dropdown-content {
        display: block !important;
        position: static;
        background: #111;
        box-shadow: none;
        border-radius: 0;
        padding: 0;
        min-width: 0;
    }

    .dropdown-content a {
        padding-left: 36px;
        font-size: 14px;
        color: #aaa;
        border-bottom: 1px solid #1a1a1a;
    }

    .dropdown-content a:hover {
        color: #B2D819;
    }

    /* Overlay escuro atrás do menu */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 1040;
    }

    .menu-overlay.open {
        display: block;
    }

    /* HERO */
    .hero {
        padding: 60px 20px 40px;
    }

    .hero h1 {
        font-size: 26px;
        line-height: 1.3;
    }

    .hero p {
        font-size: 15px;
    }

    .btn {
        padding: 14px 28px;
        font-size: 15px;
        display: block;
        text-align: center;
        margin-top: 24px;
    }

    /* FEATURES */
    .features {
        grid-template-columns: 1fr;
        margin: 30px auto;
        padding: 0 16px;
        gap: 16px;
    }

    .feature {
        padding: 24px 20px;
        min-height: 0;
    }

    /* REPOSITÓRIO */
    .repo-grid {
        grid-template-columns: 1fr;
    }

    .repo-container {
        padding: 40px 16px;
    }

    /* EXERCÍCIOS */
    .exercise-layout {
        flex-direction: column;
        padding: 0 0 40px;
        margin-left: 0 !important;
    }

    /* Sidebar de números: strip horizontal compacta no topo */
    .sidebar-exercises {
        display: block !important;
        width: 100% !important;
        min-width: 0;
        position: static;
        max-height: none;
        overflow: visible;
        padding: 12px 16px 10px;
        border-bottom: 1px solid #2a2a2a;
    }

    .ex-grid {
        display: flex !important;
        flex-wrap: wrap;
        gap: 6px;
    }

    /* Sidebar de secções: pills horizontais */
    .sidebar:not(.sidebar-exercises) {
        width: 100%;
        position: static;
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 8px;
        padding: 12px 16px 0;
    }

    .sidebar:not(.sidebar-exercises) a {
        font-size: 14px;
        margin-bottom: 0;
        padding: 6px 12px;
        background: #1a1a1a;
        border-radius: 6px;
    }

    .exercise-content {
        padding: 16px 16px 0;
    }

    .exercise-content h1 {
        font-size: 22px;
        line-height: 1.3;
    }

    .exercise-content h2 {
        font-size: 18px;
        margin-top: 28px;
    }

    .exercise-section-image {
        max-width: 100%;
    }

    .exercise-nav {
        flex-direction: column;
        gap: 12px;
        padding: 0 16px;
        margin: 30px 0;
    }

    .exercise-nav a {
        display: block;
        text-align: center;
        padding: 14px 20px;
    }

    /* CODE BLOCKS */
    .code-block pre {
        font-size: 13px;
        line-height: 1.6;
    }

    /* ADMIN */
    .admin-container {
        padding: 24px 16px;
    }

    .admin-card {
        padding: 20px 16px;
    }

    .admin-row {
        flex-direction: column;
    }

    .user-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
    }

    .user-actions {
        width: 100%;
    }

    .user-actions form,
    .btn-edit,
    .btn-delete,
    .btn-muted {
        width: 100%;
        min-width: 0;
    }

    .admin-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .admin-search {
        margin-left: 0;
        width: 100%;
    }

    .admin-search-input {
        min-width: 0;
        width: 100%;
    }

    .import-choice-grid {
        grid-template-columns: 1fr;
    }

    .courses-grid {
        grid-template-columns: 1fr;
    }

    /* LANG SWITCHER */
    .lang-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        padding: 14px 24px;
        border-top: 1px solid #222;
    }

    /* FOOTER */
    .platform-footer {
        flex-direction: column !important;
        align-items: center !important;
        text-align: center;
        gap: 12px;
        padding: 24px 16px !important;
    }

    .platform-footer-center {
        position: static !important;
        transform: none !important;
        white-space: normal !important;
        left: auto !important;
    }

    .platform-footer div {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }

    .platform-footer a {
        margin-left: 0 !important;
    }
}