:root{--primary:#174ea6;--primary-dark:#123f87;--secondary:#0b7a75;--bg:#f4f7fb;--card:#fff;--text:#1d2939;--muted:#667085;--border:#e4e7ec;--topbar:68px;--sidebar:230px}
*{box-sizing:border-box}
html{background:var(--bg)}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text);line-height:1.4}

/* Topo */
.topbar{height:var(--topbar);background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 22px;position:fixed;top:0;left:0;right:0;z-index:20}
.brand{display:flex;align-items:center;gap:10px}
.brand strong{display:block;color:var(--primary);font-size:19px}
.brand small{color:var(--muted)}
.logo{display:grid;place-items:center;width:40px;height:40px;background:var(--primary);color:#fff;border-radius:10px;font-weight:bold;font-size:22px}
.menu-btn{display:none;margin-left:auto;border:0;background:none;font-size:25px;cursor:pointer;color:var(--text)}

/* Menu lateral */
.sidebar{position:fixed;top:var(--topbar);bottom:0;left:0;width:var(--sidebar);background:#102a43;padding:22px 12px;overflow-y:auto;z-index:10}
.sidebar a{display:block;color:#d9e5f2;text-decoration:none;padding:13px 14px;border-radius:8px;margin-bottom:4px}
.sidebar a:hover{background:#173b5c;color:#fff}
.sidebar a.active{background:var(--primary);color:#fff;font-weight:bold}

/* Conteúdo */
.content{margin-left:var(--sidebar);padding:calc(var(--topbar) + 24px) 28px 50px;min-height:calc(100vh - 50px)}
h1{margin:0 0 8px;font-size:28px}
h2{font-size:19px;margin:0 0 15px}
.subtitle{color:var(--muted);margin:0 0 22px}

/* Cards do dashboard */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:0 2px 8px #00000008}
.metric{font-size:29px;font-weight:bold;margin-top:7px;word-break:break-word}
.label{color:var(--muted);font-size:13px}

/* Painéis e botões */
.panel{background:#fff;border:1px solid var(--border);border-radius:12px;margin-top:20px;padding:20px}
.toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:15px}
.toolbar h2{margin:0}
.btn{display:inline-block;border:0;border-radius:8px;padding:10px 15px;background:var(--primary);color:#fff;text-decoration:none;cursor:pointer;font:inherit;font-size:14px;white-space:nowrap}
.btn:hover{background:var(--primary-dark)}
.btn.secondary{background:#667085}
.btn.success{background:#087f5b}.btn.success:hover{background:#066649}
.btn.danger{background:#c92a2a}

/* Formulários */
form{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.full{grid-column:1/-1}
.form-action{align-self:end}
label{font-weight:bold;font-size:13px}
input,select,textarea{width:100%;padding:10px;margin-top:6px;border:1px solid #ccd3dd;border-radius:7px;background:#fff;font:inherit;font-size:14px;color:var(--text)}
input:focus,select:focus,textarea:focus{outline:2px solid #174ea633;border-color:var(--primary)}
.search-form{display:flex;gap:8px;width:100%;max-width:450px}
.search-form input{margin-top:0;flex:1;min-width:0}

/* Tabelas */
.table-wrap{width:100%;overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px;border-bottom:1px solid var(--border);font-size:14px}
th{background:#f8fafc;white-space:nowrap}
tr:hover td{background:#fafbfc}
.badge{display:inline-block;padding:5px 9px;border-radius:999px;font-size:12px;background:#eef2f6;white-space:nowrap}
.badge.green{background:#dcfce7;color:#166534}
.badge.yellow{background:#fef3c7;color:#92400e}
.badge.red{background:#fee2e2;color:#991b1b}
.badge.blue{background:#dbeafe;color:#1e40af}

/* Mensagens */
.alert{padding:12px;border-radius:8px;background:#e8f5e9;color:#1b5e20;margin-bottom:15px}
.alert.error{background:#ffebee;color:#b71c1c}
.empty{padding:20px;text-align:center;color:var(--muted)}

footer{margin-left:var(--sidebar);padding:18px 28px;color:var(--muted);font-size:12px;border-top:1px solid var(--border)}

/* Responsivo */
@media(max-width:800px){
  .sidebar{transform:translateX(-100%);transition:transform .2s}
  .menu-open .sidebar{transform:translateX(0);box-shadow:4px 0 16px #0003}
  .menu-btn{display:block}
  .content,footer{margin-left:0}
  .content{padding-left:16px;padding-right:16px}
  form{grid-template-columns:1fr}
}
@media(max-width:520px){
  .toolbar{flex-direction:column;align-items:stretch}
  .search-form{max-width:none}
  th,td{font-size:12px;padding:9px}
  .metric{font-size:24px}
}

/* ---------- Componentes adicionais ---------- */
.muted{color:var(--muted)}
.green-text{color:#087f5b}.red-text{color:#c92a2a}
.btn.small{padding:6px 10px;font-size:13px}
.btn.block{display:block;width:100%;text-align:center}
.btn.big{padding:14px 22px;font-size:16px}
.btn.secondary:hover{background:#4b5563}.btn.danger:hover{background:#a61e1e}
.inline-form{display:inline-block;margin:0}
.actions{white-space:nowrap;text-align:right}
.actions .btn,.actions .inline-form{margin:2px 0 2px 4px;vertical-align:middle}
.small-select{width:auto;margin:0;padding:5px 8px;font-size:13px}
.stack{display:flex;flex-direction:column;gap:14px}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.filter-form{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filter-form input,.filter-form select{width:auto;min-width:140px;margin:0}
.two-col{display:grid;grid-template-columns:repeat(auto-fit,minmax(340px,1fr));gap:0 20px}
.card-link{text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
.card-link:hover{border-color:var(--primary);transform:translateY(-1px)}
tr.highlight td{background:#fff8db}
.alert ul{margin:6px 0 0;padding-left:20px}
.hint{color:var(--muted);font-size:13px;margin:10px 0 0}
details summary{cursor:pointer;padding:4px 0}
details[open] summary{margin-bottom:14px}
h3{font-size:16px;margin:20px 0 10px}
code{background:#f1f5f9;padding:2px 6px;border-radius:5px;font-size:13px;word-break:break-all}
textarea{resize:vertical;font-family:Consolas,monospace;font-size:12px}
.sidebar .sidebar-extra{margin-top:18px;border-top:1px solid #1f3a56;border-radius:0 0 8px 8px;padding-top:16px;font-size:14px;color:#9fb3c8}
.user-box{margin-left:auto;display:flex;align-items:center;gap:12px}
.user-name{color:var(--muted);font-size:14px}
.check{display:flex;gap:10px;align-items:flex-start;font-weight:normal;font-size:14px;margin:18px 0}
.check input{width:auto;margin:2px 0 0}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* ---------- Área pública (inscrição, pagamento, login) ---------- */
body.public{min-height:100vh;background:linear-gradient(180deg,#e8eefb 0,var(--bg) 320px)}
.public-top{background:#fff;border-bottom:1px solid var(--border);padding:14px 22px}
.public-top .brand{max-width:860px;margin:0 auto}
.public-content{max-width:860px;margin:0 auto;padding:32px 16px 40px}
.public-content > h1{font-size:30px}
.public-footer{margin-left:0;border-top:0;text-align:center;color:var(--muted);font-size:12px;padding:20px 16px 30px}
.auth-box{max-width:420px;margin:40px auto 0}
.auth-box h1{font-size:24px}

.pay-options{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.pay-option{position:relative;cursor:pointer;font-weight:normal}
.pay-option input{position:absolute;opacity:0}
.pay-option > span{display:flex;flex-direction:column;gap:3px;height:100%;border:2px solid var(--border);border-radius:12px;padding:14px;background:#fff;transition:border-color .15s,background .15s}
.pay-option strong{font-size:15px}.pay-option small{color:var(--muted);font-size:12px}
.pay-ico{font-size:22px}
.pay-option input:checked + span{border-color:var(--primary);background:#eef4ff}
.pay-option input:focus-visible + span{outline:2px solid var(--primary);outline-offset:2px}

.pay-head{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;border-bottom:1px solid var(--border);padding-bottom:18px;margin-bottom:22px}
.pay-head h1{font-size:24px;margin:4px 0}
.pay-head .subtitle{margin:0}
.pay-total{text-align:right}
.pay-total .metric{margin:2px 0 6px}
.pay-result{text-align:center;padding:10px 0 6px}
.pay-result p{color:var(--muted);max-width:480px;margin:0 auto 18px}
.pay-result.ok h2{color:#087f5b}
.pay-result.warn h2{color:#b45309}
.big-ico{font-size:44px;line-height:1;margin-bottom:8px}
.inline-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:10px}
.inline-actions select{width:auto;margin:0}
.pix{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start}
.pix img{width:240px;height:240px;border:1px solid var(--border);border-radius:12px;padding:8px;background:#fff}
.pix h2{margin-top:0}
.pix ol{padding-left:20px;margin:0 0 16px;color:var(--muted);line-height:1.7}
.pix textarea{margin-bottom:10px}

@media(max-width:800px){
  .user-name{display:none}
  .user-box{margin-left:auto;margin-right:8px}
  .menu-btn{margin-left:0}
  .form-grid{grid-template-columns:1fr}
  .two-col{grid-template-columns:1fr}
  .actions{white-space:normal;text-align:left}
  .actions .btn,.actions .inline-form{margin:2px 4px 2px 0}
}
@media(max-width:600px){
  .pay-options{grid-template-columns:1fr}
  .pix{grid-template-columns:1fr;justify-items:center}
  .pix-steps{width:100%}
  .pay-total{text-align:left}
  .filter-form input,.filter-form select{flex:1 1 140px}
}

/* ---------- Site e portal do aluno ---------- */
.public-top{padding:12px 0}
.public-top-inner{max-width:1000px;margin:0 auto;padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.public-top .brand{max-width:none;margin:0;text-decoration:none;color:inherit}
.public-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.public-nav > a:not(.btn){color:var(--text);text-decoration:none;padding:8px 12px;border-radius:8px;font-size:14px}
.public-nav > a:not(.btn):hover,.public-nav > a.active{background:#eef4ff;color:var(--primary)}
.public-content{max-width:1000px}
.hero{margin:6px 0 26px}
.hero h1{font-size:30px;margin-bottom:6px}

.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px}
.course-card{background:#fff;border:1px solid var(--border);border-radius:14px;padding:20px;display:flex;flex-direction:column;box-shadow:0 2px 8px #00000008;transition:border-color .15s,box-shadow .15s}
.course-card:hover{border-color:#c7d7f5;box-shadow:0 6px 18px #174ea614}
.course-card.destaque{border:2px solid var(--primary)}
.course-card h2{margin:4px 0 12px;font-size:20px}
.course-info{list-style:none;padding:0;margin:0 0 18px;color:var(--muted);font-size:14px;line-height:1.9}
.course-foot{margin-top:auto;display:flex;align-items:flex-end;justify-content:space-between;gap:12px;border-top:1px solid var(--border);padding-top:14px}
.price{font-size:24px;font-weight:bold;color:var(--text)}

.aluno-head{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;margin-bottom:18px}
.aluno-nome{font-size:24px}
.tabs{display:flex;gap:4px;flex-wrap:wrap;align-items:center;background:#fff;border:1px solid var(--border);border-radius:10px;padding:4px}
.tabs a{padding:8px 12px;border-radius:7px;color:var(--muted);text-decoration:none;font-size:14px}
.tabs a:hover{color:var(--text);background:#f4f7fb}
.tabs a.active{background:var(--primary);color:#fff}
.link-btn{background:none;border:0;color:var(--primary);cursor:pointer;font:inherit;font-size:14px;padding:8px 10px;text-decoration:underline}
.warn-box{background:#fff8db;color:#7a4b00;display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.warn-box .link-btn{padding:0 4px;color:#7a4b00}

.compra-head{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.compra-head h2{margin:4px 0}
.compra-head p{margin:0}
.compra-status{text-align:right}
.compra-status .price{font-size:20px;margin-top:6px}

.auth-box{max-width:440px}
.auth-box.wide{max-width:680px}
.auth-links{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:16px;font-size:14px}
.auth-links a{color:var(--primary)}
.field-error{display:block;color:#c92a2a;font-size:12px;margin-top:4px;font-weight:normal}
.erro-box{max-width:560px;margin:30px auto}
.erro-box h1{margin-top:6px}

@media(max-width:600px){
  .hero h1{font-size:24px}
  .aluno-head{align-items:stretch}
  .tabs{width:100%}
  .compra-status{text-align:left}
}

/* Chave liga/desliga (painel) */
.switch-row{background:#f8fafc;border:1px solid var(--border);border-radius:10px;padding:14px}
.switch{display:flex;gap:14px;align-items:flex-start;cursor:pointer;font-weight:normal}
.switch input{position:absolute;opacity:0;width:1px;height:1px}
.switch-track{flex:none;width:44px;height:24px;border-radius:999px;background:#cbd5e1;position:relative;transition:background .15s;margin-top:2px}
.switch-track::after{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 2px #0003;transition:transform .15s}
.switch input:checked + .switch-track{background:#087f5b}
.switch input:checked + .switch-track::after{transform:translateX(20px)}
.switch input:focus-visible + .switch-track{outline:2px solid var(--primary);outline-offset:2px}
.switch strong{display:block;font-size:14px}
.switch small{color:var(--muted);font-size:12px}
textarea{font-family:inherit;font-size:14px}

/* Área do aluno: link de avaliação */
.link-inline{display:inline-block;margin-top:6px;font-size:13px;color:var(--primary);font-weight:600}