/* ============================================================
   LMS Brasil — design system (SaaS / LMS enterprise, claro)
   Azul corporativo, limpo, confiável. CSS próprio.
   ============================================================ */

:root {
  --bg:       #FFFFFF;
  --bg-soft:  #F5F8FC;
  --bg-soft2: #ECF1FA;
  --surface:  #FFFFFF;
  --line:     #E5EAF2;
  --line-2:   #D3DCEA;

  --ink:    #0E1B33;   /* slate-900 azulado */
  --muted:  #46536B;   /* corpo secundário */
  --faint:  #8592A8;

  --brand:   #17181D;  /* grafite (registro Blackboard) */
  --brand-d: #000000;
  --brand-ink:#0B0C10;
  --brand-soft:#ECEFED;
  --accent:  #0EA593;  /* teal — o pop de cor (no meio; longe do laranja Moodle) */
  --accent-d:#0B857A;
  --accent-soft:#E1F4F0;
  --ok:     #12A150;   /* verde de sucesso, em métricas */

  --maxw: 1180px;
  --font: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --r: 14px;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.05), 0 1px 3px rgba(16,24,40,.04);
  --shadow:    0 10px 24px -12px rgba(17,22,28,.22), 0 2px 6px rgba(16,24,40,.05);
  --shadow-lg: 0 30px 60px -24px rgba(17,22,28,.30);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font);
  background: var(--bg); color: var(--ink);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open { overflow: hidden; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); }

h1,h2,h3,h4 { margin:0; font-weight:700; letter-spacing:-.02em; line-height:1.12; color:var(--ink); }

.wrap { width:100%; max-width:var(--maxw); margin:0 auto; padding:0 24px; }
.kicker {
  font-size:12.5px; font-weight:700; letter-spacing:.06em; text-transform:uppercase;
  color:var(--accent); display:inline-flex; align-items:center; gap:8px;
}
.accent { color:var(--accent); }
.ok { color:var(--ok); }

/* ---------- botões ---------- */
.btn {
  display:inline-flex; align-items:center; gap:9px; cursor:pointer;
  font-family:var(--font); font-weight:600; font-size:15px; white-space:nowrap;
  padding:12px 22px; border-radius:10px; border:1px solid transparent;
  background:var(--brand); color:#fff; box-shadow:var(--shadow-sm);
  transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { background:var(--brand-d); transform:translateY(-1px); box-shadow:var(--shadow); }
.btn-ghost { background:#fff; color:var(--ink); border-color:var(--line-2); box-shadow:none; }
.btn-ghost:hover { background:var(--bg-soft); border-color:var(--accent); color:var(--brand-ink); transform:translateY(-1px); }
.btn-sm { padding:9px 16px; font-size:14px; }

/* ============================================================
   HEADER + HAMBÚRGUER (todas as resoluções)
   ============================================================ */
.site-header { position:sticky; top:0; z-index:60; background:rgba(255,255,255,.88); backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.site-header .wrap { height:70px; display:flex; align-items:center; justify-content:space-between; }
.brand { display:flex; align-items:center; gap:10px; font-weight:800; font-size:19px; letter-spacing:-.02em; color:var(--ink); }
.brand b { color:var(--accent); font-weight:800; }
.brand-mark { width:32px; height:32px; border-radius:9px; display:grid; place-items:center; background:linear-gradient(150deg,var(--brand),var(--accent)); color:#fff; font-weight:800; box-shadow:0 6px 16px -6px var(--brand); }
.header-actions { display:flex; align-items:center; gap:12px; }

.hamb { width:46px; height:42px; border-radius:10px; background:#fff; border:1px solid var(--line-2); display:inline-flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; cursor:pointer; transition:border-color .2s, box-shadow .2s; }
.hamb:hover { border-color:var(--accent); box-shadow:var(--shadow-sm); }
.hamb span:not(.sr-only){ width:18px; height:2px; background:var(--ink); border-radius:2px; transition:transform .28s ease, opacity .2s ease; display:block; }
body.nav-open .hamb span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
body.nav-open .hamb span:nth-child(2){ opacity:0; }
body.nav-open .hamb span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

.nav-overlay { position:fixed; inset:0; z-index:70; background:rgba(255,255,255,.98); opacity:0; visibility:hidden; transform:translateY(-6px); transition:opacity .26s ease, transform .26s ease, visibility .26s; display:flex; align-items:flex-start; }
body.nav-open .nav-overlay { opacity:1; visibility:visible; transform:none; }
.nav-inner { width:100%; max-width:var(--maxw); margin:0 auto; padding:104px 24px 60px; display:grid; grid-template-columns:1.5fr 1fr; gap:48px; }
.nav-links { list-style:none; margin:0; padding:0; }
.nav-links li { border-bottom:1px solid var(--line); }
.nav-links a { display:flex; align-items:center; gap:14px; padding:16px 0; font-size:clamp(20px,2.6vw,26px); font-weight:600; color:var(--ink); transition:color .18s, padding-left .18s; }
.nav-links a:hover { color:var(--accent); padding-left:8px; }
.nav-links a[aria-current="page"]{ color:var(--accent); }
.nav-links .idx { font-size:12px; font-weight:700; color:var(--faint); width:26px; }
.nav-meta { align-self:start; padding-top:8px; }
.nav-meta h4 { font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:var(--faint); margin-bottom:10px; }
.nav-meta p { color:var(--muted); font-size:15px; margin:0 0 8px; }
.nav-meta .link { color:var(--accent); font-weight:600; }
.nav-cta { margin-top:18px; }
@media (max-width:720px){ .nav-inner{ grid-template-columns:1fr; gap:28px; } .header-actions .btn:not(.hamb){ display:none; } }

/* ============================================================
   HERO
   ============================================================ */
.hero { position:relative; overflow:hidden; background:linear-gradient(180deg,#fff 0%, var(--bg-soft) 100%); border-bottom:1px solid var(--line); }
.hero::before { content:""; position:absolute; inset:0; z-index:0; pointer-events:none; background:radial-gradient(55% 55% at 88% -12%, rgba(14,165,147,.10), transparent 60%), radial-gradient(45% 50% at -6% 15%, rgba(23,24,29,.05), transparent 55%); }
.hero .wrap { position:relative; z-index:1; }
.hero .wrap { padding:clamp(48px,7vw,86px) 24px clamp(48px,7vw,80px); }
.hero-grid { display:grid; grid-template-columns:1.05fr .95fr; gap:52px; align-items:center; }
.hero h1 { font-size:clamp(34px,5vw,56px); margin-top:18px; letter-spacing:-.03em; }
.hero p.lead { font-size:clamp(17px,1.6vw,19px); color:var(--muted); max-width:540px; margin:20px 0 0; }
.hero-cta { margin-top:28px; display:flex; flex-wrap:wrap; gap:12px; }
.trust { margin-top:26px; display:flex; flex-wrap:wrap; gap:10px 20px; }
.trust span { display:inline-flex; align-items:center; gap:7px; font-size:13.5px; color:var(--muted); font-weight:500; }
.trust span::before { content:""; width:16px; height:16px; border-radius:50%; background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%230EA593' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat; flex:none; }
@media (max-width:900px){ .hero-grid{ grid-template-columns:1fr; gap:36px; } }

/* ---------- mockups de produto (UI ilustrativa) ---------- */
.ui { background:#fff; border:1px solid var(--line); border-radius:16px; box-shadow:var(--shadow-lg); overflow:hidden; }
.ui-bar { display:flex; align-items:center; gap:6px; padding:12px 14px; border-bottom:1px solid var(--line); background:var(--bg-soft); }
.ui-bar i { width:10px; height:10px; border-radius:50%; background:var(--line-2); display:block; }
.ui-bar b { margin-left:10px; font-size:12.5px; font-weight:600; color:var(--faint); }
.ui-body { padding:18px; }
.ui-row { display:flex; align-items:center; justify-content:space-between; gap:12px; margin-bottom:14px; }
.ui-row:last-child { margin-bottom:0; }
.ui-row .lbl { font-size:13.5px; color:var(--ink); font-weight:500; }
.ui-row .val { font-size:13px; font-weight:700; color:var(--accent); }
.ui-row .val.ok { color:var(--ok); }
.pbar { height:8px; border-radius:99px; background:var(--bg-soft2); overflow:hidden; }
.pbar i { display:block; height:100%; border-radius:99px; background:linear-gradient(90deg,var(--accent),#3fd0bf); }
.pbar.g i { background:linear-gradient(90deg,var(--ok),#54c98a); }
.ui-track { display:block; margin-bottom:14px; }
.ui-track:last-child{ margin-bottom:0; }
.ui-track .t { display:flex; justify-content:space-between; margin-bottom:6px; }
.ui-stats { display:grid; grid-template-columns:repeat(3,1fr); gap:10px; margin-top:4px; }
.ui-stat { background:var(--bg-soft); border:1px solid var(--line); border-radius:10px; padding:12px; text-align:center; }
.ui-stat b { display:block; font-size:20px; font-weight:800; color:var(--ink); letter-spacing:-.02em; }
.ui-stat span { font-size:11px; color:var(--faint); }
.badge-cert { display:flex; align-items:center; gap:12px; padding:14px; border:1px dashed var(--line-2); border-radius:12px; background:var(--bg-soft); }
.badge-cert .seal { width:40px; height:40px; border-radius:50%; background:var(--accent-soft); display:grid; place-items:center; color:var(--accent); flex:none; }
.badge-cert .seal svg{ width:20px; height:20px; }
.badge-cert .txt b { display:block; font-size:14px; }
.badge-cert .txt span { font-size:12.5px; color:var(--muted); }

/* ============================================================
   FAIXA DE CONFIANÇA (sem logos falsos — atributos reais)
   ============================================================ */
.strip { background:var(--bg-soft); border-bottom:1px solid var(--line); }
.strip .wrap { padding:18px 24px; display:flex; align-items:center; justify-content:center; gap:10px 30px; flex-wrap:wrap; }
.strip p { margin:0; font-size:13.5px; color:var(--muted); }
.strip b { color:var(--ink); }

/* ============================================================
   SECTIONS
   ============================================================ */
section { padding:clamp(52px,7vw,92px) 0; }
.section-head { max-width:640px; }
.section-head h2 { font-size:clamp(27px,3.6vw,40px); margin-top:14px; letter-spacing:-.025em; }
.section-head p { color:var(--muted); font-size:17.5px; margin-top:14px; }
.center { margin-left:auto; margin-right:auto; text-align:center; }

/* feature rows (produto) */
.feature { display:grid; grid-template-columns:1fr 1fr; gap:52px; align-items:center; }
.feature + .feature { margin-top:clamp(48px,6vw,80px); }
.feature.rev .fcopy { order:2; }
.feature .fcopy h3 { font-size:clamp(22px,2.6vw,30px); letter-spacing:-.02em; }
.feature .fcopy p { color:var(--muted); font-size:16.5px; margin-top:14px; }
.flist { list-style:none; padding:0; margin:18px 0 0; }
.flist li { position:relative; padding:8px 0 8px 28px; color:var(--muted); font-size:15.5px; }
.flist li::before { content:""; position:absolute; left:0; top:14px; width:16px; height:16px; border-radius:50%; background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='11' viewBox='0 0 24 24' fill='none' stroke='%230EA593' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/11px no-repeat; }
@media (max-width:860px){ .feature{ grid-template-columns:1fr; gap:28px; } .feature.rev .fcopy{ order:0; } }

/* cards (pilares / serviços) */
.grid-cards { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; margin-top:44px; }
.card { background:#fff; border:1px solid var(--line); border-radius:var(--r); padding:26px; box-shadow:var(--shadow-sm); transition:transform .18s, box-shadow .18s, border-color .18s; }
.card:hover { transform:translateY(-3px); box-shadow:var(--shadow); border-color:var(--line-2); }
.card .ic { width:44px; height:44px; border-radius:11px; background:var(--accent-soft); color:var(--accent); display:grid; place-items:center; margin-bottom:16px; }
.card .ic svg { width:22px; height:22px; }
.card h3 { font-size:18.5px; }
.card p { color:var(--muted); font-size:14.5px; margin:10px 0 0; }
@media (max-width:860px){ .grid-cards{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .grid-cards{ grid-template-columns:1fr; } }

/* steps */
.steps { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; margin-top:44px; }
.step { position:relative; padding:26px; background:#fff; border:1px solid var(--line); border-radius:var(--r); box-shadow:var(--shadow-sm); }
.step .num { width:34px; height:34px; border-radius:9px; background:var(--brand); color:#fff; font-weight:700; display:grid; place-items:center; font-size:15px; }
.step h3 { font-size:17.5px; margin:14px 0 8px; }
.step p { color:var(--muted); font-size:14px; margin:0; }
@media (max-width:860px){ .steps{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:520px){ .steps{ grid-template-columns:1fr; } }

/* CTA band */
.cta-band { border-radius:22px; background:linear-gradient(135deg,var(--brand-ink),var(--brand)); padding:clamp(34px,5vw,60px); text-align:center; color:#fff; box-shadow:var(--shadow-lg); }
.cta-band h2 { color:#fff; font-size:clamp(26px,3.6vw,42px); }
.cta-band p { color:rgba(255,255,255,.85); max-width:560px; margin:14px auto 0; font-size:17px; }
.cta-band .kicker { color:rgba(255,255,255,.82); }
.cta-band .btn { background:#fff; color:var(--brand-ink); }
.cta-band .btn:hover { background:#eef2fb; }
.cta-band .btn-ghost { background:transparent; color:#fff; border-color:rgba(255,255,255,.5); }
.cta-band .btn-ghost:hover { background:rgba(255,255,255,.12); color:#fff; border-color:#fff; }
.cta-band .hero-cta { justify-content:center; margin-top:26px; }

/* páginas internas */
.page-hero { background:linear-gradient(180deg,#fff, var(--bg-soft)); border-bottom:1px solid var(--line); }
.page-hero .wrap { padding:clamp(44px,6vw,80px) 24px clamp(36px,4vw,52px); }
.page-hero h1 { font-size:clamp(32px,4.6vw,52px); margin-top:14px; letter-spacing:-.03em; }
.page-hero p { color:var(--muted); font-size:18.5px; max-width:640px; margin-top:16px; }
.prose { max-width:760px; }
.prose p { color:var(--muted); font-size:17px; }
.prose h2 { font-size:clamp(22px,3vw,30px); margin:40px 0 12px; }
.prose ul { padding:0; margin:8px 0 0; list-style:none; }
.prose ul li { position:relative; padding:11px 0 11px 30px; color:var(--muted); font-size:16px; border-bottom:1px solid var(--line); }
.prose ul li::before { content:""; position:absolute; left:0; top:16px; width:18px; height:18px; border-radius:50%; background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%230EA593' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E") center/12px no-repeat; }

/* blog post */
.post-meta { display:flex; gap:12px; align-items:center; color:var(--faint); font-size:14px; margin-top:16px; }
.prose h3 { font-size:19px; margin:28px 0 8px; }
.table-wrap { overflow-x:auto; margin:22px 0; }
.prose table { width:100%; border-collapse:collapse; font-size:14.5px; min-width:520px; }
.prose th, .prose td { text-align:left; padding:11px 14px; border-bottom:1px solid var(--line); vertical-align:top; }
.prose thead th { font-size:11.5px; text-transform:uppercase; letter-spacing:.05em; color:var(--faint); background:var(--bg-soft); }
.prose td:first-child { font-weight:600; color:var(--ink); }
.prose tbody tr:last-child td { border-bottom:0; }

/* form */
.form { background:#fff; border:1px solid var(--line); border-radius:16px; padding:26px; box-shadow:var(--shadow); }
.form label { display:block; font-size:13px; font-weight:600; color:var(--ink); margin-bottom:6px; }
.form .field { margin-bottom:15px; }
.form input, .form textarea { width:100%; background:#fff; border:1px solid var(--line-2); border-radius:10px; padding:11px 13px; color:var(--ink); font-family:var(--font); font-size:15px; }
.form input:focus, .form textarea:focus { outline:none; border-color:var(--accent); box-shadow:0 0 0 3px var(--accent-soft); }
.form .two { display:grid; grid-template-columns:1fr 1fr; gap:15px; }
@media (max-width:520px){ .form .two{ grid-template-columns:1fr; } }
.form .btn { width:100%; justify-content:center; margin-top:4px; }
.form small { display:block; color:var(--faint); font-size:12px; margin-top:10px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background:#0E1B33; color:rgba(255,255,255,.72); }
.foot-grid { display:grid; grid-template-columns:1.5fr 1fr 1fr; gap:32px; padding:56px 0 28px; }
.site-footer .brand { color:#fff; margin-bottom:12px; }
.site-footer .brand b { color:#5FD8C8; }
.site-footer .brand-mark { background:linear-gradient(150deg,var(--brand),var(--accent)); }
.site-footer .desc { color:rgba(255,255,255,.6); font-size:14px; max-width:280px; }
.foot-col h4 { font-size:12px; letter-spacing:.08em; text-transform:uppercase; color:rgba(255,255,255,.5); margin-bottom:14px; }
.foot-col ul { list-style:none; margin:0; padding:0; }
.foot-col ul li { margin-bottom:10px; }
.foot-col a { color:rgba(255,255,255,.72); font-size:14px; }
.foot-col a:hover { color:#fff; }
.todo { color:#F0B44A; font-style:italic; font-size:12px; }
.legal { border-top:1px solid rgba(255,255,255,.12); padding:20px 0 40px; color:rgba(255,255,255,.5); font-size:12px; }
.legal p { margin:6px 0; }
@media (max-width:820px){ .foot-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .foot-grid{ grid-template-columns:1fr; } }

/* ============================================================
   POLISH: scroll reveal + faixa de plataformas
   ============================================================ */
.reveal { opacity:0; transform:translateY(14px); transition:opacity .55s ease, transform .55s ease; }
.reveal.in { opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){ .reveal { opacity:1 !important; transform:none !important; transition:none; } }

.platforms { border-bottom:1px solid var(--line); background:var(--bg-soft); }
.platforms .wrap { padding:16px 24px; display:flex; align-items:center; justify-content:center; gap:12px 22px; flex-wrap:wrap; }
.pl-label { font-size:11.5px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--faint); }
.pl-list { display:flex; flex-wrap:wrap; gap:8px 10px; list-style:none; margin:0; padding:0; }
.pl-list li { font-size:13px; font-weight:600; color:var(--muted); background:#fff; border:1px solid var(--line-2); border-radius:999px; padding:5px 13px; transition:border-color .18s ease, color .18s ease; }
.pl-list li:hover { border-color:var(--accent); color:var(--ink); }