/* ============================================================
   DevMind — visual dark gamificado
   ============================================================ */
* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0b1020;
  --bg-2: #11182e;
  --panel: #161e38;
  --panel-2: #1d2747;
  --border: #283455;
  --text: #e4e9f7;
  --muted: #8b97b8;
  --primary: #5b8cff;
  --primary-2: #3f6fe0;
  --success: #2dd4a7;
  --warning: #ffb454;
  --error: #ff6b81;
  --gold: #ffd166;
  --code-bg: #0a0f1f;
  --radius: 12px;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

code, pre, .editor { font-family: "Cascadia Code", Consolas, monospace; }
a { color: var(--primary); text-decoration: none; }
h1, h2, h3 { line-height: 1.3; }

/* ---------- BOOT/LOGIN ---------- */
.boot-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 100vh; gap: 12px; }
.boot-logo { font-size: 40px; font-weight: 800; }
.boot-text { color: var(--muted); }
.boot-text.erro { color: var(--error); text-align: center; max-width: 480px; }

.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 20px; }
.auth-card { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: 36px; width: 100%; max-width: 420px; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.auth-logo { font-size: 32px; font-weight: 800; text-align: center; }
.auth-tagline { color: var(--muted); text-align: center; margin: 8px 0 24px; font-size: 14px; }
.auth-tabs { display: flex; gap: 4px; background: var(--bg-2); border-radius: 10px; padding: 4px; margin-bottom: 18px; }
.auth-tab { flex: 1; background: transparent; color: var(--muted); border: none; padding: 9px; border-radius: 8px; cursor: pointer; font-weight: 600; }
.auth-tab.ativo { background: var(--primary); color: #fff; }
.auth-form { display: flex; flex-direction: column; gap: 12px; }
.auth-form input { background: var(--bg-2); border: 1px solid var(--border); color: var(--text); padding: 12px 14px; border-radius: 8px; font-size: 15px; outline: none; }
.auth-form input:focus { border-color: var(--primary); }
.auth-erro { color: var(--error); font-size: 13px; margin-top: 12px; text-align: center; min-height: 18px; }

/* ---------- SHELL ---------- */
.shell { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; align-items: center; gap: 24px;
  background: var(--bg-2); border-bottom: 1px solid var(--border);
  padding: 10px 24px; position: sticky; top: 0; z-index: 50;
}
.logo { font-size: 20px; font-weight: 800; color: var(--text); white-space: nowrap; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav-link { color: var(--muted); padding: 7px 13px; border-radius: 8px; font-size: 14px; font-weight: 500; white-space: nowrap; }
.nav-link:hover { background: var(--panel); color: var(--text); }
.nav-link.ativo { background: var(--panel-2); color: var(--text); }

.perfil { display: flex; align-items: center; gap: 14px; }
.perfil-nome { font-size: 13px; font-weight: 700; }
.rank { font-size: 11px; padding: 1px 8px; border-radius: 10px; background: var(--panel-2); color: var(--gold); margin-left: 4px; }
.perfil-nivel { display: flex; align-items: center; gap: 8px; }
.nivel-num { font-size: 12px; color: var(--gold); font-weight: 700; white-space: nowrap; }
.xp-bar { width: 110px; height: 7px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.xp-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--success)); transition: width .4s; }
.xp-texto { font-size: 11px; color: var(--muted); white-space: nowrap; }
.streak-chip { background: var(--panel); border: 1px solid var(--border); padding: 6px 14px; border-radius: 20px; font-weight: 700; font-size: 15px; opacity: .55; }
.streak-chip.aceso { opacity: 1; border-color: var(--warning); box-shadow: 0 0 14px rgba(255, 180, 84, .25); }
.freeze { font-size: 12px; color: #9ad8ff; }
.btn-sair { background: transparent; border: 1px solid var(--border); color: var(--muted); width: 34px; height: 34px; border-radius: 8px; cursor: pointer; }
.btn-sair:hover { color: var(--error); border-color: var(--error); }

.conteudo { flex: 1; padding: 28px; max-width: 1180px; width: 100%; margin: 0 auto; }

/* ---------- COMPONENTES ---------- */
.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.card-head h2 { font-size: 17px; }

.btn {
  display: inline-block; background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border); padding: 9px 16px; border-radius: 8px;
  cursor: pointer; font-size: 14px; font-weight: 600; text-align: center;
  transition: transform .05s, background .15s;
}
.btn:hover { background: var(--border); }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-2); }
.btn-block { display: block; width: 100%; }
.btn .custo { font-size: 11px; color: var(--warning); }
kbd { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 1px 6px; font-size: 11px; }

.pagina-titulo { font-size: 26px; margin-bottom: 6px; }
.pagina-sub { color: var(--muted); margin-bottom: 22px; }
.secao-titulo { font-size: 19px; margin: 26px 0 12px; }
.bread { margin-bottom: 14px; font-size: 13px; }
.bread a { color: var(--muted); }
.bread a:hover { color: var(--primary); }
.sem-dados { color: var(--muted); font-size: 14px; }

/* ---------- DASHBOARD ---------- */
.dash-saudacao h1 { font-size: 26px; }
.dash-saudacao .sub { color: var(--muted); margin-bottom: 24px; }
.dash-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 16px; margin-bottom: 16px; }

.card-daily { border-color: var(--primary); box-shadow: 0 0 24px rgba(91, 140, 255, .12); }
.card-daily.completo { border-color: var(--success); }
.daily-prog { font-weight: 800; color: var(--primary); }
.daily-barra { height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; margin-bottom: 14px; }
.daily-fill { height: 100%; background: linear-gradient(90deg, var(--primary), var(--success)); transition: width .4s; }
.daily-lista { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 12px; }
.daily-item a { display: flex; align-items: center; gap: 10px; background: var(--bg-2); padding: 10px 14px; border-radius: 8px; color: var(--text); border: 1px solid transparent; }
.daily-item a:hover { border-color: var(--primary); }
.daily-item.feito a { opacity: .6; }
.daily-titulo { flex: 1; font-size: 14px; font-weight: 500; }
.daily-meta { font-size: 11px; color: var(--muted); }
.daily-done { background: rgba(45, 212, 167, .12); border: 1px solid var(--success); color: var(--success); padding: 14px; border-radius: 8px; font-size: 14px; }
.rev-info { color: var(--muted); font-size: 14px; margin-bottom: 12px; }

.badges-fila { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.badge { font-size: 26px; background: var(--bg-2); border: 1px solid var(--border); width: 48px; height: 48px; display: flex; align-items: center; justify-content: center; border-radius: 10px; }
.link-mais { font-size: 13px; color: var(--muted); }

.heatmap { display: grid; grid-template-columns: repeat(26, 1fr); grid-auto-flow: column; grid-template-rows: repeat(7, 1fr); gap: 3px; }
.hm-cell { aspect-ratio: 1; border-radius: 2px; background: var(--bg-2); min-width: 8px; }
.hm-1 { background: #1d4d3d; } .hm-2 { background: #1f7a58; } .hm-3 { background: #25ab76; } .hm-4 { background: #2dd4a7; }
.hm-legenda { display: flex; gap: 4px; align-items: center; font-size: 11px; color: var(--muted); margin-top: 8px; }
.hm-legenda .hm-cell { width: 10px; min-width: 10px; }

.trilhas-mini { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.trilha-mini { background: var(--bg-2); padding: 12px 16px; border-radius: 8px; color: var(--text); border: 1px solid transparent; }
.trilha-mini:hover { border-color: var(--primary); }
.trilha-mini-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 8px; }
.trilha-mini-bar { height: 6px; background: var(--bg); border-radius: 3px; overflow: hidden; }
.trilha-mini-bar > div { height: 100%; background: linear-gradient(90deg, var(--primary), var(--success)); }

/* ---------- TRILHAS ---------- */
.trilhas-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 18px; }
.trilha-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; color: var(--text); transition: transform .12s, border-color .12s; position: relative; }
.trilha-card:hover { transform: translateY(-3px); border-color: var(--primary); }
.trilha-icone { font-size: 40px; margin-bottom: 10px; }
.trilha-card h2 { margin-bottom: 6px; }
.trilha-card p { color: var(--muted); font-size: 14px; margin-bottom: 14px; min-height: 42px; }
.trilha-stats { display: flex; justify-content: space-between; font-size: 12px; color: var(--muted); margin-bottom: 8px; }
.trilha-pct { position: absolute; top: 20px; right: 22px; font-weight: 800; color: var(--success); }

.modulos-lista { display: flex; flex-direction: column; gap: 10px; }
.modulo-card { display: flex; gap: 16px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px; color: var(--text); }
.modulo-card:hover { border-color: var(--primary); }
.modulo-card.completo { border-left: 4px solid var(--success); }
.modulo-num { font-size: 22px; font-weight: 800; color: var(--muted); width: 36px; text-align: center; }
.modulo-corpo { flex: 1; }
.modulo-head { display: flex; gap: 10px; align-items: center; margin-bottom: 2px; }
.modulo-corpo p { color: var(--muted); font-size: 13px; margin-bottom: 8px; }
.modulo-prog { font-weight: 700; color: var(--muted); }
.nivel-tag { font-size: 10px; text-transform: uppercase; letter-spacing: 1px; padding: 2px 8px; border-radius: 10px; font-weight: 700; }
.nivel-iniciante { background: rgba(45,212,167,.15); color: var(--success); }
.nivel-intermediario { background: rgba(255,180,84,.15); color: var(--warning); }
.nivel-avancado { background: rgba(255,107,129,.15); color: var(--error); }

/* ---------- MÓDULO / TEORIA ---------- */
.teoria-box { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); margin: 18px 0; }
.teoria-box summary { padding: 14px 20px; cursor: pointer; font-weight: 700; user-select: none; }
.teoria { padding: 0 24px 20px; }
.teoria h3 { color: var(--primary); margin: 18px 0 8px; font-size: 17px; }
.teoria p { margin-bottom: 10px; }
.teoria ul, .teoria ol { padding-left: 24px; margin-bottom: 12px; }
.teoria li { margin-bottom: 4px; }
.teoria code { background: var(--code-bg); color: var(--gold); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.teoria pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; overflow-x: auto; margin: 8px 0 14px; }
.teoria pre code { background: none; padding: 0; color: var(--text); }
.teoria table { width: 100%; border-collapse: collapse; margin: 10px 0 14px; font-size: 14px; }
.teoria th, .teoria td { border: 1px solid var(--border); padding: 7px 12px; text-align: left; }
.teoria th { background: var(--panel-2); }
.teoria blockquote { border-left: 3px solid var(--primary); padding: 6px 16px; color: var(--muted); font-style: italic; margin: 10px 0; }

.ex-lista { display: flex; flex-direction: column; gap: 8px; }
.ex-card { display: grid; grid-template-columns: 30px 80px 1fr auto; gap: 12px; align-items: center; background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 13px 18px; color: var(--text); font-size: 14px; }
.ex-card:hover { border-color: var(--primary); }
.ex-card.resolvido { border-left: 4px solid var(--success); }
.ex-card.boss { border-color: rgba(255,107,129,.5); background: linear-gradient(180deg, var(--panel), rgba(255,107,129,.05)); }
.ex-status { font-size: 17px; }
.ex-codigo { font-family: monospace; color: var(--muted); font-size: 12px; }
.ex-titulo { font-weight: 500; }
.ex-titulo small { color: var(--muted); }
.ex-dif { color: var(--gold); font-size: 12px; letter-spacing: 1px; }

/* ---------- EXERCÍCIO ---------- */
.ex-head h1 { font-size: 21px; margin-bottom: 8px; }
.ex-meta { display: flex; gap: 10px; align-items: center; margin-bottom: 16px; flex-wrap: wrap; }
.runner-tag { font-size: 11px; font-weight: 800; padding: 3px 10px; border-radius: 6px; }
.runner-sql { background: rgba(91,140,255,.18); color: var(--primary); }
.runner-php { background: rgba(137,87,229,.2); color: #b794f6; }
.tag-resolvido { color: var(--success); font-size: 13px; font-weight: 700; }
.tag-review { color: var(--warning); font-size: 13px; font-weight: 700; }
.tag-daily { color: var(--primary); font-size: 13px; font-weight: 700; }

.enunciado { background: var(--panel); border-left: 4px solid var(--primary); border-radius: 8px; padding: 18px 22px; margin-bottom: 16px; font-size: 15px; }
.enunciado code { background: var(--code-bg); color: var(--gold); padding: 2px 6px; border-radius: 4px; font-size: 13px; }
.enunciado pre { background: var(--code-bg); padding: 12px; border-radius: 8px; margin: 10px 0; overflow-x: auto; }

.confianca-box { background: var(--panel); border: 1px dashed var(--border); border-radius: 10px; padding: 14px 18px; margin-bottom: 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.confianca-label { font-size: 13px; font-weight: 600; }
.confianca-botoes { display: flex; gap: 6px; }
.conf-btn { width: 36px; height: 36px; border-radius: 8px; background: var(--bg-2); border: 1px solid var(--border); color: var(--text); cursor: pointer; font-weight: 700; }
.conf-btn:hover { border-color: var(--primary); }
.conf-btn.sel { background: var(--primary); border-color: var(--primary); color: #fff; }
.confianca-explica { font-size: 11px; color: var(--muted); flex-basis: 100%; }

.editor-area { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin-bottom: 14px; }
.editor-toolbar { display: flex; gap: 8px; align-items: center; padding: 10px 12px; background: var(--panel-2); border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.timer { margin-left: auto; font-family: monospace; color: var(--muted); font-size: 13px; }
.editor { width: 100%; min-height: 260px; background: var(--code-bg); color: var(--text); border: none; outline: none; padding: 16px; font-size: 14px; line-height: 1.55; resize: vertical; tab-size: 4; }

.dica-box { background: rgba(255,180,84,.08); border: 1px solid rgba(255,180,84,.4); border-radius: 8px; padding: 12px 16px; margin-bottom: 14px; font-size: 14px; }
.dica-box code { background: var(--code-bg); color: var(--gold); padding: 1px 5px; border-radius: 4px; }
.dica-box pre { margin-top: 8px; font-size: 12px; overflow-x: auto; }

.resultado-area { margin-bottom: 18px; }
.resultado { border-radius: 10px; padding: 18px 20px; margin-bottom: 12px; }
.resultado.executando { background: var(--panel); color: var(--muted); }
.resultado.sucesso { background: rgba(45,212,167,.09); border: 1px solid var(--success); }
.resultado.erro { background: rgba(255,107,129,.07); border: 1px solid var(--error); }
.resultado-titulo { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.sucesso .resultado-titulo { color: var(--success); }
.erro .resultado-titulo { color: var(--error); }
.resultado-motivo { margin-bottom: 8px; }
.resultado-incentivo { color: var(--muted); font-size: 13px; }
.resultado-sub { font-size: 14px; color: var(--muted); margin: 12px 0 6px; }

.xp-ganho { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.xp-num { font-size: 22px; font-weight: 800; color: var(--gold); }
.xp-bonus { font-size: 11px; background: var(--panel-2); padding: 3px 10px; border-radius: 10px; color: var(--success); }
.xp-ganho.critico .xp-num { font-size: 28px; animation: pulse .5s ease 2; }
.critico-banner { width: 100%; font-weight: 800; color: var(--gold); font-size: 16px; }
@keyframes pulse { 50% { transform: scale(1.25); } }
.levelup { width: 100%; font-weight: 800; color: var(--primary); font-size: 16px; }
.badge-nova { background: rgba(255,209,102,.1); border: 1px solid var(--gold); padding: 10px 14px; border-radius: 8px; margin-bottom: 8px; font-size: 14px; }
.srs-info { font-size: 13px; color: var(--muted); margin-bottom: 10px; }

.insight-box { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--border); }
.insight-box label { display: block; font-size: 13px; margin-bottom: 8px; }
.insight-form { display: flex; gap: 8px; }
.insight-form input { flex: 1; background: var(--bg-2); border: 1px solid var(--border); color: var(--text); padding: 9px 12px; border-radius: 8px; outline: none; font-size: 14px; }

.tab-wrap { overflow: auto; max-height: 420px; border: 1px solid var(--border); border-radius: 8px; }
.tab { width: 100%; border-collapse: collapse; font-size: 13px; }
.tab th, .tab td { padding: 8px 13px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
.tab th { background: var(--panel-2); position: sticky; top: 0; }
.tab tbody tr:hover { background: var(--panel-2); }
.tab .null { color: var(--muted); font-style: italic; }
.tab-info { font-size: 12px; color: var(--muted); padding: 6px 2px; }

.php-output { margin-top: 10px; }
.php-output-label { font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.php-output pre, .php-esperado { background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; font-size: 13px; overflow-x: auto; white-space: pre-wrap; }
.fails-lista { margin-top: 10px; }
.fail-item { color: var(--error); font-size: 13px; font-family: monospace; padding: 3px 0; }
.esperado { margin-top: 10px; }
.esperado summary { cursor: pointer; color: var(--muted); font-size: 13px; }

.ex-nav { display: flex; justify-content: space-between; padding: 16px 0 30px; }

/* ---------- STATS ---------- */
.stats-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px; text-align: center; }
.stat-num { font-size: 26px; font-weight: 800; color: var(--primary); }
.stat-lbl { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }
.tab-cal td { white-space: nowrap; }
.cal-bar { width: 120px; height: 8px; background: var(--bg); border-radius: 4px; overflow: hidden; }
.cal-bar > div { height: 100%; background: var(--success); }
.badges-grid { display: flex; flex-direction: column; gap: 10px; max-height: 320px; overflow-y: auto; }
.badge-item { display: flex; gap: 12px; align-items: center; font-size: 13px; }
.badge-icone { font-size: 24px; }
.prog-trilha { margin-bottom: 12px; }
.prog-trilha-head { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 5px; }

/* ---------- MÉTODO ---------- */
.metodo-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 14px; margin-bottom: 16px; }
.metodo-card h2 { font-size: 16px; margin-bottom: 8px; }
.metodo-card p { font-size: 13.5px; color: var(--muted); }
.contrato { padding-left: 22px; }
.contrato li { margin-bottom: 6px; }

/* ---------- QUIZ (OmniMind) ---------- */
.ex-modo { font-size: 11px; padding: 2px 9px; border-radius: 10px; font-weight: 600; white-space: nowrap; }
.modo-numerico { background: rgba(91,140,255,.18); color: var(--primary); }
.modo-texto    { background: rgba(45,212,167,.16); color: var(--success); }
.modo-multipla { background: rgba(255,180,84,.16); color: var(--warning); }
.ex-card { grid-template-columns: 30px 80px 1fr auto auto; }

.quiz-area { margin-bottom: 16px; }

.resposta-input { display: flex; gap: 10px; margin-bottom: 12px; }
.resposta-input input {
  flex: 1; background: var(--code-bg); border: 2px solid var(--border); color: var(--text);
  padding: 16px 18px; border-radius: 10px; font-size: 18px; outline: none;
}
.resposta-input input:focus { border-color: var(--primary); }
.resposta-input .btn-primary { padding: 0 28px; font-size: 16px; }

.opcoes { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }
.opcao {
  display: flex; align-items: center; gap: 14px; text-align: left;
  background: var(--panel); border: 2px solid var(--border); border-radius: 10px;
  padding: 15px 18px; cursor: pointer; color: var(--text); font-size: 15px;
  transition: border-color .12s, background .12s, transform .05s;
}
.opcao:hover { border-color: var(--primary); background: var(--panel-2); }
.opcao:active { transform: scale(.99); }
.opcao-letra {
  width: 32px; height: 32px; flex-shrink: 0; border-radius: 8px; background: var(--bg-3);
  display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--muted);
}
.opcao-texto { flex: 1; }
.opcao.certa { border-color: var(--success); background: rgba(45,212,167,.12); }
.opcao.certa .opcao-letra { background: var(--success); color: #fff; }
.opcao.errada { border-color: var(--error); background: rgba(255,107,129,.1); animation: shake .35s; }
.opcao.travada { cursor: default; opacity: .75; }
.opcao.travada:hover { border-color: var(--border); background: var(--panel); }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }

.quiz-tools { display: flex; gap: 8px; align-items: center; }
.btn-pequeno { padding: 6px 12px; font-size: 13px; }
.btn .custo { font-size: 10px; color: var(--warning); }
.quiz-tools .timer { margin-left: auto; font-family: monospace; color: var(--muted); font-size: 13px; }

.dica-box { background: rgba(255,180,84,.08); border: 1px solid rgba(255,180,84,.4); border-radius: 8px; padding: 12px 16px; margin-bottom: 14px; font-size: 14px; }
.dica-box.reveal { background: rgba(91,140,255,.08); border-color: rgba(91,140,255,.4); }
.dica-box code { background: var(--code-bg); color: var(--gold); padding: 1px 5px; border-radius: 4px; }
.reveal-expl { margin-top: 8px; color: var(--muted); }

.explicacao { background: rgba(91,140,255,.08); border-left: 3px solid var(--primary); border-radius: 6px; padding: 12px 16px; margin: 10px 0; font-size: 14px; }
.explicacao code { background: var(--code-bg); color: var(--gold); padding: 1px 5px; border-radius: 4px; }

/* ---------- RESPONSIVO ---------- */
@media (max-width: 860px) {
  .topbar { flex-wrap: wrap; gap: 10px; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; }
  .perfil-info { display: none; }
  .conteudo { padding: 16px; }
  .ex-card { grid-template-columns: 26px 1fr auto; }
  .ex-codigo, .ex-card .ex-modo { display: none; }
}