/* ==========================================================================
   Oxton Education — Header público (topbar + header principal) · SaaS
   ========================================================================== */
:root{
  --ox-h-primary:#3335d8; --ox-h-primary-dark:#25278f; --ox-h-primary-soft:#eef0ff;
  --ox-h-dark:#101223; --ox-h-text:#1f2937; --ox-h-muted:#6b7280;
  --ox-h-border:#e5e7eb; --ox-h-bg:#f6f8fc; --ox-h-white:#fff;
}

.oxton-site-header{position:sticky;top:0;z-index:9000;background:#fff}
.oxton-site-header .oxton-container{width:100%;max-width:var(--ox-container,1200px);padding-left:24px;padding-right:24px;box-sizing:border-box;margin-left:auto;margin-right:auto}

.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}

/* ===== TOPBAR ===== */
.oxton-topbar{background:linear-gradient(90deg,#3335d8 0%,#25278f 100%);color:#fff;border-bottom:1px solid rgba(255,255,255,.12)}
.oxton-topbar-inner{min-height:54px;display:flex;align-items:center;justify-content:flex-start}
.oxton-topbar-nav{display:flex;align-items:center;gap:6px;width:100%;flex-wrap:nowrap}
.oxton-nav-link,.oxton-dropdown-toggle{
  min-height:42px;display:inline-flex;align-items:center;gap:6px;padding:0 15px;border-radius:8px;
  color:rgba(255,255,255,.92);text-decoration:none;text-transform:uppercase;letter-spacing:.07em;
  font-size:13px;font-weight:700;border:0;background:transparent;cursor:pointer;white-space:nowrap;font-family:inherit;
  transition:background .14s,color .14s;
}
.oxton-nav-link:hover,.oxton-dropdown-toggle:hover{background:rgba(255,255,255,.16);color:#fff;text-decoration:none}
.oxton-nav-link-active{background:rgba(255,255,255,.2);color:#fff}
.oxton-caret{opacity:.85;transition:transform .18s}
.oxton-has-dropdown.is-open .oxton-caret,.oxton-has-dropdown:hover .oxton-caret{transform:rotate(180deg)}

.oxton-has-dropdown{position:relative}
.oxton-dropdown-menu{
  position:absolute;top:calc(100% + 10px);left:0;width:280px;background:#fff;border:1px solid var(--ox-h-border);
  border-radius:18px;padding:10px;box-shadow:0 24px 60px rgba(16,18,35,.16);z-index:30;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.oxton-has-dropdown:hover .oxton-dropdown-menu,.oxton-has-dropdown.is-open .oxton-dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.oxton-dropdown-menu a{display:block;padding:10px 12px;border-radius:12px;color:var(--ox-h-text);text-decoration:none;font-size:14px;font-weight:700}
.oxton-dropdown-menu a:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}

/* ===== HEADER PRINCIPAL ===== */
.oxton-main-header{background:#fff;border-bottom:1px solid var(--ox-h-border)}
.oxton-main-header-inner{min-height:88px;display:grid;grid-template-columns:auto minmax(240px,1fr) auto;gap:28px;align-items:center}
.oxton-header-logo{display:inline-flex;align-items:center;text-decoration:none}
.oxton-header-logo img{display:block;width:auto;max-width:220px;height:48px;object-fit:contain}

.oxton-header-search{
  width:min(100%,680px);justify-self:center;min-height:48px;border:1px solid #dfe3ee;background:#f8fafc;
  border-radius:999px;display:flex;align-items:center;gap:10px;padding:0 18px;box-sizing:border-box;
}
.oxton-header-search:focus-within{border-color:var(--ox-h-primary);background:#fff;box-shadow:0 0 0 4px rgba(51,53,216,.08)}
.oxton-search-icon{color:#94a3b8;flex:0 0 auto}
.oxton-header-search input{width:100%;min-width:0;border:0;outline:none;background:transparent;color:var(--ox-h-dark);font-size:15px;font-family:inherit}
.oxton-header-search input::placeholder{color:#94a3b8}

.oxton-header-actions{display:flex;align-items:center;justify-content:flex-end;gap:12px}
.oxton-cart-button{position:relative;width:46px;height:46px;border-radius:14px;color:var(--ox-h-dark);text-decoration:none;display:inline-flex;align-items:center;justify-content:center;transition:background .14s,color .14s}
.oxton-cart-button:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}
.oxton-cart-count{position:absolute;top:2px;right:1px;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:#dc2626;color:#fff;border:2px solid #fff;font-size:11px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}

.oxton-panel-button{min-height:46px;padding:0 20px;border:1px solid #cfd7e6;border-radius:13px;background:#fff;color:var(--ox-h-dark);text-decoration:none;font-size:14.5px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap;transition:all .14s}
.oxton-panel-button:hover{border-color:var(--ox-h-primary);color:var(--ox-h-primary);background:var(--ox-h-primary-soft);text-decoration:none}
.oxton-panel-button--primary{background:var(--ox-h-primary);border-color:var(--ox-h-primary);color:#fff}
.oxton-panel-button--primary:hover{background:var(--ox-h-primary-dark);border-color:var(--ox-h-primary-dark);color:#fff}
.oxton-panel-button--ghost{border-color:transparent;background:transparent}

.oxton-mobile-toggle{display:none;width:46px;height:46px;border:1px solid #dfe3ee;border-radius:13px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}
.oxton-mobile-toggle span{width:20px;height:2px;border-radius:999px;background:var(--ox-h-dark);transition:transform .2s,opacity .2s}
.oxton-mobile-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.oxton-mobile-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.oxton-mobile-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== MENU MOBILE ===== */
.oxton-mobile-menu{background:#fff;border-bottom:1px solid var(--ox-h-border);max-height:calc(100vh - 70px);overflow-y:auto}
.oxton-mobile-menu[hidden]{display:none !important}
.oxton-mobile-menu-inner{padding:18px 0 22px}
.oxton-mobile-search{margin-bottom:14px}
.oxton-mobile-search input{width:100%;min-height:46px;border:1px solid #dfe3ee;border-radius:14px;padding:0 16px;outline:none;font:inherit;box-sizing:border-box}
.oxton-mobile-search input:focus{border-color:var(--ox-h-primary);box-shadow:0 0 0 3px rgba(51,53,216,.1)}
.oxton-mobile-nav{display:grid;gap:4px}
.oxton-mobile-nav > a,.oxton-mobile-nav summary{display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:12px;color:var(--ox-h-text);text-decoration:none;font-weight:700;font-size:14.5px;cursor:pointer}
.oxton-mobile-nav > a:hover,.oxton-mobile-nav summary:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}
.oxton-mobile-group summary{list-style:none;justify-content:space-between}
.oxton-mobile-group summary::-webkit-details-marker{display:none}
.oxton-mobile-group summary::after{content:"+";font-size:1.2rem;color:var(--ox-h-muted);font-weight:400}
.oxton-mobile-group[open] summary::after{content:"−"}
.oxton-mobile-group a{display:flex;align-items:center;min-height:40px;padding:0 14px 0 26px;border-radius:10px;color:var(--ox-h-muted);text-decoration:none;font-weight:600;font-size:13.5px}
.oxton-mobile-group a:hover{background:var(--ox-h-bg);color:var(--ox-h-primary)}
.oxton-mobile-cta{background:var(--ox-h-primary);color:#fff !important}
.oxton-mobile-cta:hover{background:var(--ox-h-primary-dark) !important;color:#fff !important}

/* ===== FOCO VISÍVEL ===== */
.oxton-nav-link:focus-visible,.oxton-dropdown-toggle:focus-visible,.oxton-panel-button:focus-visible,
.oxton-cart-button:focus-visible,.oxton-mobile-toggle:focus-visible,.oxton-header-search input:focus-visible,
.oxton-dropdown-menu a:focus-visible,.oxton-mobile-nav a:focus-visible{
  outline:3px solid rgba(51,53,216,.32);outline-offset:3px;border-radius:8px;
}

/* ===== RESPONSIVO ===== */
@media (max-width:1180px){
  .oxton-nav-link,.oxton-dropdown-toggle{padding:0 11px;font-size:12px;letter-spacing:.05em}
  .oxton-main-header-inner{gap:18px}
  .oxton-header-logo img{max-width:190px;height:44px}
}
@media (max-width:980px){
  .oxton-topbar{display:none}
  .oxton-main-header-inner{min-height:74px;grid-template-columns:auto 1fr auto;gap:12px}
  .oxton-header-search{display:none}
  .oxton-panel-button{display:none}
  .oxton-mobile-toggle{display:inline-flex}
  .oxton-header-logo{justify-self:start}
  .oxton-header-actions{justify-self:end}
  .oxton-header-logo img{max-width:170px;height:42px}
}
@media (max-width:560px){
  .oxton-site-header .oxton-container{width:min(100% - 28px,100%)}
  .oxton-main-header-inner{min-height:66px}
  .oxton-header-logo img{max-width:140px;height:36px}
  .oxton-cart-button,.oxton-mobile-toggle{width:42px;height:42px;border-radius:12px}
}

/* ===== BOTÃO/DROPDOWN DO USUÁRIO (header branco) ===== */
.oxton-user{position:relative}
.oxton-user-toggle{
  min-height:46px;padding:0 12px 0 8px;border:1px solid #cfd7e6;border-radius:13px;background:#fff;
  color:var(--ox-h-dark);text-transform:none;letter-spacing:0;font-size:14.5px;font-weight:700;
  display:inline-flex;align-items:center;gap:9px;cursor:pointer;
}
.oxton-user-toggle:hover{background:var(--ox-h-primary-soft);border-color:var(--ox-h-primary);color:var(--ox-h-primary)}
.oxton-user-avatar{
  width:30px;height:30px;border-radius:50%;flex:0 0 auto;
  background:linear-gradient(135deg,#3335d8,#5b34ff);color:#fff;font-size:12px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;letter-spacing:.02em;
}
.oxton-user-avatar--img{object-fit:cover;background:none !important}
.oxton-mobile-avatar--img{object-fit:cover;background:none !important}
.oxton-user-name{max-width:128px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.oxton-user-menu{left:auto;right:0;width:236px;padding:7px}
.oxton-menu-icons{padding:7px;width:248px}
/* itens minimalistas com ícone (menu do usuário + institucional) */
.oxton-user-menu a,.oxton-menu-icons a{display:flex;align-items:center;gap:11px;padding:8px 11px;border-radius:10px;font-size:13.5px;font-weight:500;color:#374151}
.oxton-user-menu a svg,.oxton-menu-icons a svg{width:17px;height:17px;flex:0 0 auto;color:#9aa1b2;transition:color .12s}
.oxton-user-menu a:hover,.oxton-menu-icons a:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}
.oxton-user-menu a:hover svg,.oxton-menu-icons a:hover svg{color:var(--ox-h-primary)}
.oxton-user-menu-sep{height:1px;background:var(--ox-h-border);margin:6px 8px}
.oxton-user-menu-out{color:#b91c1c !important}
.oxton-user-menu-out svg{color:#dc8a8a !important}
.oxton-user-menu-out:hover{background:#fef2f2 !important;color:#b91c1c !important}
.oxton-user-menu-out:hover svg{color:#b91c1c !important}

/* ===== Bloco de usuário no menu mobile ===== */
.oxton-mobile-user{margin-top:8px;border-top:1px solid var(--ox-h-border);padding-top:10px;display:grid;gap:3px}
.oxton-mobile-user-head{display:flex;align-items:center;gap:9px;font-weight:800;color:#0f172a;padding:6px 14px 8px}
.oxton-mobile-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#3335d8,#5b34ff);color:#fff;font-size:11px;font-weight:800;display:inline-flex;align-items:center;justify-content:center}
.oxton-mobile-user a{display:flex;align-items:center;gap:11px;min-height:40px;padding:0 14px;border-radius:10px;color:var(--ox-h-text);text-decoration:none;font-weight:500;font-size:14px}
.oxton-mobile-user a svg{width:17px;height:17px;flex:0 0 auto;color:#9aa1b2}
.oxton-mobile-user a:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}
.oxton-mobile-user a:hover svg{color:var(--ox-h-primary)}

/* No mobile, o menu do usuário fica dentro do drawer */
@media (max-width:980px){ .oxton-user{display:none} }

/* ============================================================
   Glassmorphism + features (progresso, mega-menu, carrinho, cmdk)
============================================================ */
.oxton-main-header{background:rgba(255,255,255,.78);backdrop-filter:saturate(160%) blur(14px);-webkit-backdrop-filter:saturate(160%) blur(14px);border-bottom-color:rgba(229,231,235,.7)}
.oxton-site-header{transition:transform .28s cubic-bezier(.2,.7,.2,1)}
.oxton-site-header.is-hidden{transform:translateY(-100%)}
.oxton-topbar{background:linear-gradient(90deg,#2E25C9 0%,#5147E0 55%,#7C5CFF 100%)}

/* Barra de progresso de leitura */
.oxton-reading-progress{position:absolute;top:0;left:0;right:0;height:3px;background:rgba(255,255,255,.12);z-index:50;pointer-events:none}
.oxton-reading-progress > span{display:block;height:100%;width:0%;background:linear-gradient(90deg,#5DCAA5,#9FE1CB);transition:width .12s linear;box-shadow:0 0 8px rgba(93,202,165,.45)}

/* Trigger do command palette (no lugar do input) */
.oxton-cmdk-trigger{cursor:text;text-align:left;color:#94a3b8;display:flex;align-items:center;gap:10px;padding:0 16px}
.oxton-cmdk-trigger:hover{border-color:var(--ox-h-primary);background:#fff}
.oxton-cmdk-placeholder{flex:1;font-size:14px;color:#94a3b8;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.oxton-cmdk-kbd{display:inline-flex;gap:3px;align-items:center}
.oxton-cmdk-kbd kbd{background:#fff;border:1px solid #e5e7eb;border-bottom-width:2px;border-radius:6px;padding:2px 6px;font-size:11px;color:#475569;line-height:1}

/* Mega-menu (Cursos) */
.oxton-mega-menu{width:min(720px,calc(100vw - 40px));padding:18px;display:grid;grid-template-columns:1.1fr 1fr 1.2fr;gap:18px}
.oxton-mega-head{font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#7a8099;padding:0 6px 8px}
.oxton-mega-col a{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:10px;font-size:13px;font-weight:500;color:#374151;text-decoration:none}
.oxton-mega-col a:hover{background:var(--ox-h-primary-soft);color:var(--ox-h-primary)}
.oxton-mega-cat-ico{width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto}
.oxton-mega-cat-label{flex:1;display:flex;align-items:center;gap:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.oxton-mega-cat-label small{font-size:11px;color:#9aa1b2;font-weight:500}
.oxton-mega-all{font-weight:700 !important;color:var(--ox-h-primary) !important;font-size:12.5px !important;margin-top:4px}
.oxton-mega-feat{position:relative;border-radius:14px;padding:18px;color:#fff;background:linear-gradient(135deg,#2E25C9 0%,#5147E0 55%,#7C5CFF 100%);overflow:hidden;display:flex;flex-direction:column;gap:6px;justify-content:flex-end;min-height:200px}
.oxton-mega-feat::before{content:"";position:absolute;top:-30px;right:-30px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 60%)}
.oxton-mega-feat-eyebrow{position:relative;font-size:10.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.85)}
.oxton-mega-feat strong{position:relative;font-size:16px;font-weight:700;line-height:1.25}
.oxton-mega-feat p{position:relative;font-size:12.5px;color:rgba(255,255,255,.85);line-height:1.45;margin:0}
.oxton-mega-feat-cta{position:relative;margin-top:8px;display:inline-flex;align-items:center;gap:6px;background:rgba(255,255,255,.18);border:1px solid rgba(255,255,255,.28);color:#fff !important;padding:8px 14px;border-radius:999px;font-size:12.5px;font-weight:700;text-decoration:none;width:fit-content}
.oxton-mega-feat-cta:hover{background:rgba(255,255,255,.28)}

/* Cart preview */
.oxton-cart-wrap{position:relative}
.oxton-cart-menu{left:auto;right:0;width:320px;padding:14px}
.oxton-cart-menu-head{font-size:12px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#7a8099;padding:0 4px 10px;border-bottom:1px solid var(--ox-h-border);display:flex;justify-content:space-between;align-items:center}
.oxton-cart-menu-head small{font-size:11px;font-weight:600;color:#94a3b8;letter-spacing:0;text-transform:none}
.oxton-cart-empty{padding:20px 6px;text-align:center;color:#6b7280;font-size:13px}
.oxton-cart-empty-ico{font-size:30px;display:block;margin-bottom:8px}
.oxton-cart-go{display:inline-block;margin-top:10px;color:var(--ox-h-primary);font-weight:700;text-decoration:none;font-size:13px}
.oxton-cart-list{list-style:none;margin:0;padding:8px 0 6px;display:grid;gap:8px}
.oxton-cart-list li{display:flex;align-items:center;gap:10px}
.oxton-cart-thumb{flex:0 0 auto;width:36px;height:36px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:14px}
.oxton-cart-info{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.oxton-cart-info a{font-size:13px;font-weight:600;color:#0f172a;text-decoration:none;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.oxton-cart-info a:hover{color:var(--ox-h-primary)}
.oxton-cart-info strong{font-size:12.5px;color:#0f172a}
.oxton-cart-foot{margin-top:10px;border-top:1px solid var(--ox-h-border);padding-top:10px;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
.oxton-cart-foot span{font-size:12.5px;color:#475569}
.oxton-cart-foot strong{margin-left:6px;color:#0f172a;font-size:13.5px}
.oxton-cart-checkout{background:linear-gradient(135deg,#2E25C9,#7C5CFF);color:#fff !important;padding:9px 16px;border-radius:999px;text-decoration:none;font-weight:700;font-size:12.5px;box-shadow:0 4px 14px -4px rgba(47,53,216,.5)}
.oxton-cart-checkout:hover{filter:brightness(1.07)}

/* Command palette */
.oxton-cmdk{position:fixed;inset:0;z-index:100002;display:flex;align-items:flex-start;justify-content:center;padding:14vh 16px 16px;animation:cmdkFade .14s ease-out}
.oxton-cmdk[hidden]{display:none}
.oxton-cmdk-backdrop{position:absolute;inset:0;background:rgba(15,18,40,.45);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.oxton-cmdk-panel{position:relative;width:min(640px,100%);background:rgba(255,255,255,.92);backdrop-filter:saturate(160%) blur(18px);-webkit-backdrop-filter:saturate(160%) blur(18px);border:1px solid rgba(255,255,255,.6);border-radius:18px;box-shadow:0 30px 80px -20px rgba(0,0,0,.4);overflow:hidden;animation:cmdkSlide .18s cubic-bezier(.2,.7,.2,1)}
.oxton-cmdk-form{display:flex;align-items:center;gap:10px;padding:14px 16px;border-bottom:1px solid rgba(229,231,235,.7)}
.oxton-cmdk-form svg{color:#94a3b8;flex:0 0 auto}
.oxton-cmdk-form input{flex:1;border:0;outline:none;background:transparent;font-size:15px;color:#0f172a}
.oxton-cmdk-esc{font-size:11px;background:#fff;border:1px solid #e5e7eb;border-bottom-width:2px;border-radius:6px;padding:2px 6px;color:#475569}
.oxton-cmdk-body{max-height:50vh;overflow-y:auto;padding:8px 8px}
.oxton-cmdk-section-h{font-size:10.5px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:#7a8099;padding:8px 10px}
.oxton-cmdk-item{display:flex;align-items:center;gap:10px;padding:9px 10px;border-radius:10px;text-decoration:none;color:#0f172a;font-size:13.5px}
.oxton-cmdk-item:hover,.oxton-cmdk-item:focus-visible{background:var(--ox-h-primary-soft);color:var(--ox-h-primary);outline:none}
.oxton-cmdk-ico{width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;flex:0 0 auto}
.oxton-cmdk-tag{margin-left:auto;font-size:10.5px;font-weight:700;color:#94a3b8;text-transform:uppercase;letter-spacing:.06em}
.oxton-cmdk-foot{display:flex;gap:14px;align-items:center;padding:10px 16px;border-top:1px solid rgba(229,231,235,.7);font-size:11.5px;color:#7a8099}
.oxton-cmdk-foot kbd{background:#fff;border:1px solid #e5e7eb;border-bottom-width:2px;border-radius:6px;padding:1px 6px;color:#475569;font-size:10.5px}
.oxton-cmdk-tip{margin-left:auto;color:#94a3b8}

@keyframes cmdkFade{from{opacity:0}to{opacity:1}}
@keyframes cmdkSlide{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}

@media (max-width:980px){
  .oxton-mega-menu{grid-template-columns:1fr;width:min(420px,calc(100vw - 28px))}
  .oxton-cart-menu{width:min(360px,calc(100vw - 28px))}
}
@media (max-width:560px){
  .oxton-mega-feat{display:none}
}
@media (prefers-reduced-motion: reduce){
  .oxton-site-header,.oxton-reading-progress > span{transition:none}
  .oxton-cmdk,.oxton-cmdk-panel{animation:none}
}