/* ============ Aula via Web | Landing institucional ============ */
:root{
  --azul:#2563EB;
  --azul-esc:#1E3A8A;
  --azul-claro:#0EA5E9;
  --indigo:#4F46E5;
  --roxo:#7C3AED;
  --tinta:#0F172A;
  --tinta-2:#334155;
  --cinza:#64748B;
  --linha:#E2E8F0;
  --fundo:#F8FAFC;
  --branco:#FFFFFF;
  --wa:#25D366;
  --sombra:0 12px 40px rgba(15,23,42,.10);
  --sombra-sm:0 4px 16px rgba(15,23,42,.07);
  --raio:18px;
  --fonte-titulo:'Sora',system-ui,sans-serif;
  --fonte-corpo:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--fonte-corpo);
  color:var(--tinta-2);
  background:var(--branco);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,.brand-name{font-family:var(--fonte-titulo);color:var(--tinta);line-height:1.15;letter-spacing:-.02em}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
.container{width:min(1120px,92%);margin:0 auto}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.85);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--linha);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px}
.brand-logo{width:38px;height:38px;border-radius:9px}
.brand-name{font-weight:700;font-size:1.15rem}
.site-nav{display:flex;align-items:center;gap:28px}
.site-nav a{font-weight:500;font-size:.95rem;color:var(--tinta-2);transition:color .2s}
.site-nav a:hover{color:var(--azul)}
.nav-cta{
  background:var(--azul);color:#fff!important;
  padding:9px 18px;border-radius:999px;font-weight:600;
  box-shadow:0 6px 18px rgba(37,99,235,.28);transition:transform .2s,box-shadow .2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(37,99,235,.34)}

/* ---------- Botões ---------- */
.btn-lg{display:inline-flex;align-items:center;gap:10px;font-weight:600;padding:15px 28px;border-radius:999px;font-size:1.02rem;transition:transform .2s,box-shadow .2s}
.btn-wa{background:var(--wa);color:#fff;box-shadow:0 10px 26px rgba(37,211,102,.34)}
.btn-wa:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(37,211,102,.42)}
.btn-ghost{background:#fff;color:var(--azul-esc);border:1.5px solid var(--linha);box-shadow:var(--sombra-sm)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--azul);color:var(--azul)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F8FAFF 0%,#EEF4FF 100%);padding:82px 0 96px}
.hero-glow{position:absolute;top:-160px;left:50%;transform:translateX(-50%);width:900px;height:520px;background:radial-gradient(closest-side,rgba(37,99,235,.20),transparent 70%);filter:blur(10px);pointer-events:none}
.hero-inner{position:relative;text-align:center;display:flex;flex-direction:column;align-items:center}
.hero-badge{display:inline-block;background:rgba(37,99,235,.10);color:var(--azul-esc);font-weight:600;font-size:.82rem;letter-spacing:.04em;text-transform:uppercase;padding:7px 16px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:clamp(2rem,5vw,3.4rem);font-weight:800;max-width:28ch}
.hero-accent{color:var(--azul)}
.hero-sub{margin:22px auto 0;max-width:60ch;font-size:clamp(1.02rem,2vw,1.2rem);color:var(--tinta-2)}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-top:34px}
.hero-stats{display:flex;gap:40px;flex-wrap:wrap;justify-content:center;margin-top:52px}
.stat{display:flex;flex-direction:column}
.stat strong{font-family:var(--fonte-titulo);font-size:1.5rem;color:var(--azul-esc)}
.stat span{font-size:.9rem;color:var(--cinza)}

/* ---------- Seções ---------- */
.secao{padding:84px 0}
.secao-tag{display:inline-block;color:var(--azul);font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.secao-tag.light{color:#BFDBFE}
.secao-titulo{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:800;max-width:20ch}
.secao-lead{margin-top:16px;max-width:64ch;font-size:1.08rem;color:var(--tinta-2)}

/* ---------- Grid 3 features ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.feat{background:#fff;border:1px solid var(--linha);border-radius:var(--raio);padding:30px 26px;box-shadow:var(--sombra-sm);transition:transform .2s,box-shadow .2s}
.feat:hover{transform:translateY(-4px);box-shadow:var(--sombra)}
.feat-ico{width:54px;height:54px;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#fff;background:var(--c,#2563EB);margin-bottom:18px;box-shadow:0 8px 20px color-mix(in srgb,var(--c,#2563EB) 40%,transparent)}
.feat-ico svg{width:28px;height:28px}
.feat h3{font-size:1.2rem;font-weight:700;margin-bottom:8px}
.feat p{font-size:.98rem;color:var(--tinta-2)}

/* ---------- Recursos ---------- */
.secao-recursos{background:var(--fundo)}
.grid-rec{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.rec{background:#fff;border:1px solid var(--linha);border-radius:16px;padding:24px 22px;box-shadow:var(--sombra-sm);transition:transform .2s,box-shadow .2s}
.rec:hover{transform:translateY(-4px);box-shadow:var(--sombra)}
.rec-ico{width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--c,#2563EB);background:color-mix(in srgb,var(--c,#2563EB) 12%,#fff);margin-bottom:16px}
.rec-ico svg{width:24px;height:24px}
.rec h3{font-size:1.05rem;font-weight:700;margin-bottom:6px}
.rec p{font-size:.92rem;color:var(--cinza)}

/* ---------- Destaque: correção QR ---------- */
.secao-destaque{background:linear-gradient(135deg,var(--azul-esc) 0%,#312E81 100%);color:#fff}
.destaque-box{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.secao-destaque h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800;margin-bottom:18px;max-width:18ch}
.secao-destaque p{color:#C7D2FE}
.destaque-lista{list-style:none;margin-top:26px;display:flex;flex-direction:column;gap:16px}
.destaque-lista li{position:relative;padding-left:34px;color:#E0E7FF;font-size:1rem}
.destaque-lista li strong{color:#fff}
.destaque-lista li::before{content:"";position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:50%;background:var(--azul-claro);box-shadow:0 0 0 4px rgba(14,165,233,.22)}
.destaque-lista li::after{content:"";position:absolute;left:7px;top:9px;width:8px;height:4px;border-left:2px solid #fff;border-bottom:2px solid #fff;transform:rotate(-45deg)}
/* Cartão QR */
.destaque-visual{display:flex;justify-content:center}
.qr-card{background:#fff;border-radius:22px;padding:26px;width:min(320px,80%);box-shadow:0 30px 60px rgba(0,0,0,.35);color:var(--tinta)}
.qr-code{width:120px;height:120px;margin:0 auto 20px;border-radius:12px;overflow:hidden;border:1px solid var(--linha)}
.qr-rows{display:flex;flex-direction:column;gap:12px}
.qr-row{display:flex;align-items:center;gap:10px}
.qr-row span{width:18px;font-weight:700;color:var(--cinza);font-size:.9rem}
.qr-row i{width:26px;height:26px;border-radius:50%;border:2px solid var(--linha);display:inline-block}
.qr-row i.on{background:var(--azul);border-color:var(--azul);box-shadow:0 4px 10px rgba(37,99,235,.4)}
.qr-check{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:22px;padding:12px;border-radius:12px;background:rgba(5,150,105,.12);color:#059669;font-weight:700}
.qr-check svg{width:22px;height:22px}

/* ---------- Destaque IA ---------- */
.secao-ia{background:#fff}
.feat-ia{background:linear-gradient(180deg,#fff,#FAFAFF);border-color:#E9E7FF}

/* ---------- Para a escola ---------- */
.secao-escola{background:var(--fundo)}
.escola-box{display:grid;grid-template-columns:1.25fr .75fr;gap:48px;align-items:center}
.secao-escola h2{font-size:clamp(1.7rem,3.4vw,2.3rem);font-weight:800;margin:6px 0 16px;max-width:20ch}
.secao-escola .secao-tag.light{color:var(--azul)}
.escola-cols{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin:28px 0}
.escola-col h4{font-size:1.02rem;font-weight:700;color:var(--azul-esc);margin-bottom:12px}
.escola-lista{list-style:none;display:flex;flex-direction:column;gap:10px}
.escola-lista li{position:relative;padding-left:28px;font-size:.98rem;color:var(--tinta-2)}
.escola-lista li::before{content:"";position:absolute;left:0;top:3px;width:18px;height:18px;border-radius:50%;background:color-mix(in srgb,var(--azul) 15%,#fff)}
.escola-lista li::after{content:"";position:absolute;left:6px;top:8px;width:6px;height:3px;border-left:2px solid var(--azul);border-bottom:2px solid var(--azul);transform:rotate(-45deg)}
.escola-visual{display:flex;justify-content:center}
.escola-visual img{width:min(200px,60%);filter:drop-shadow(0 20px 40px rgba(37,99,235,.25))}

/* ---------- Contato ---------- */
.secao-contato{background:linear-gradient(135deg,var(--azul) 0%,var(--indigo) 100%);color:#fff;text-align:center}
.contato-inner{display:flex;flex-direction:column;align-items:center}
.secao-contato h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:800}
.secao-contato p{color:#DBEAFE;max-width:52ch;margin:14px 0 30px}
.contato-num{font-family:var(--fonte-titulo);font-weight:700;font-size:1.3rem;color:#fff;margin-top:22px;letter-spacing:.02em}

/* ---------- Footer ---------- */
.site-footer{background:var(--tinta);color:#CBD5E1;padding:40px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.footer-brand{display:flex;align-items:center;gap:14px}
.footer-logo{width:40px;height:40px;border-radius:10px}
.footer-brand strong{font-family:var(--fonte-titulo);color:#fff;font-size:1.05rem}
.footer-brand p{font-size:.88rem;color:#94A3B8}
.copyright{font-size:.86rem;color:#94A3B8}

/* ---------- WhatsApp flutuante ---------- */
.wa-float{position:fixed;right:22px;bottom:22px;z-index:60;width:60px;height:60px;border-radius:50%;background:var(--wa);color:#fff;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 30px rgba(37,211,102,.45);transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}

/* ---------- Simulação interativa do sistema ---------- */
.secao-sim{background:#fff}
.sim{margin-top:44px;display:grid;grid-template-columns:236px 1fr;background:#fff;border:1px solid var(--linha);border-radius:20px;overflow:hidden;box-shadow:0 24px 60px rgba(15,23,42,.14);min-height:460px}
/* Sidebar */
.sim-side{background:#fff;border-right:1px solid var(--linha);padding:16px;display:flex;flex-direction:column;gap:6px}
.sim-brand{display:flex;align-items:center;gap:10px;padding:6px 6px 14px;border-bottom:1px solid var(--linha);margin-bottom:8px}
.sim-brand-ico{width:38px;height:38px;border-radius:10px;background:var(--azul);color:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sim-brand-ico svg{width:22px;height:22px}
.sim-brand-txt{display:flex;flex-direction:column;min-width:0}
.sim-brand-txt strong{font-family:var(--fonte-titulo);font-size:.98rem;color:var(--tinta);line-height:1.1}
.sim-brand-txt span{font-size:.78rem;color:var(--cinza)}
.sim-nav{display:flex;flex-direction:column;gap:3px}
.sim-navitem{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:9px;border:0;background:none;cursor:pointer;font-family:var(--fonte-corpo);font-size:.92rem;font-weight:500;color:var(--tinta-2);text-align:left;width:100%;transition:background .15s,color .15s}
.sim-navitem svg{width:18px;height:18px;flex-shrink:0}
.sim-navitem:hover{background:var(--fundo)}
.sim-navitem.is-active{background:var(--azul);color:#fff}
/* Main */
.sim-main{display:flex;flex-direction:column;background:var(--fundo);min-width:0}
.sim-top{display:flex;align-items:center;justify-content:space-between;padding:16px 22px;background:#fff;border-bottom:1px solid var(--linha)}
.sim-title{font-family:var(--fonte-titulo);font-size:1.15rem;font-weight:700;color:var(--tinta)}
.sim-top-right{display:flex;align-items:center;gap:12px}
.sim-demo-badge{background:rgba(37,99,235,.10);color:var(--azul-esc);font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:5px 11px;border-radius:999px}
.sim-avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--azul),var(--indigo));color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700}
.sim-body{padding:24px 22px;flex:1;overflow:auto}
.sim-panel{display:none}
.sim-panel.is-active{display:block;animation:simfade .25s ease}
@keyframes simfade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
/* Cards do painel */
.sim-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}
.sim-stat{display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--linha);border-radius:14px;padding:18px}
.sim-stat-ico{width:44px;height:44px;border-radius:11px;background:color-mix(in srgb,var(--c,#2563EB) 13%,#fff);color:var(--c,#2563EB);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.sim-stat-ico svg{width:22px;height:22px}
.sim-stat strong{font-family:var(--fonte-titulo);font-size:1.5rem;color:var(--tinta);display:block;line-height:1}
.sim-stat small{font-size:.85rem;color:var(--cinza)}
.sim-block{background:#fff;border:1px solid var(--linha);border-radius:14px;padding:20px 22px}
.sim-block h4{font-family:var(--fonte-titulo);font-size:1.05rem;color:var(--tinta);margin-bottom:14px}
.sim-hint{font-size:.9rem;color:var(--cinza);margin:-6px 0 16px}
.sim-list{list-style:none;display:flex;flex-direction:column;gap:12px}
.sim-list li{display:flex;align-items:center;gap:10px;font-size:.95rem;color:var(--tinta-2)}
.sim-list li em{margin-left:auto;font-style:normal;font-size:.82rem;color:var(--cinza)}
.sim-dot{width:10px;height:10px;border-radius:50%;background:var(--c,#2563EB);flex-shrink:0}
/* Tabela boletim */
.sim-table-wrap{overflow-x:auto}
.sim-table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:420px}
.sim-table th,.sim-table td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--linha)}
.sim-table th{font-family:var(--fonte-titulo);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em;color:var(--cinza);font-weight:600}
.sim-table td:not(:first-child),.sim-table th:not(:first-child){text-align:center}
.sim-table tbody tr:hover{background:var(--fundo)}
.sim-badge{display:inline-block;padding:3px 10px;border-radius:999px;font-weight:700;font-size:.85rem}
.sim-badge.ok{background:rgba(5,150,105,.12);color:#059669}
.sim-badge.alerta{background:rgba(217,119,6,.14);color:#B45309}
/* Chamada */
.sim-chamada{list-style:none;display:flex;flex-direction:column;gap:8px}
.sim-chamada li{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--linha);border-radius:10px;font-size:.95rem;color:var(--tinta-2)}
.sim-freq{border:0;cursor:pointer;font-family:var(--fonte-corpo);font-weight:600;font-size:.85rem;padding:6px 14px;border-radius:999px;transition:all .15s}
.sim-freq.on{background:rgba(5,150,105,.12);color:#059669}
.sim-freq.off{background:rgba(220,38,38,.12);color:#DC2626}
/* Correção QR */
.sim-qr-demo{display:grid;grid-template-columns:auto 1fr;gap:26px;align-items:center}
.sim-qr-sheet{background:#fff;border:1px solid var(--linha);border-radius:14px;padding:18px;width:190px;box-shadow:var(--sombra-sm)}
.sim-qr-img{width:96px;height:96px;margin:0 auto 16px;border:1px solid var(--linha);border-radius:8px;overflow:hidden}
.sim-qr-rows{display:flex;flex-direction:column;gap:9px}
.sim-qr-row{display:flex;align-items:center;gap:8px}
.sim-qr-row span{width:14px;font-weight:700;color:var(--cinza);font-size:.82rem}
.sim-qr-row i{width:20px;height:20px;border-radius:50%;border:2px solid var(--linha)}
.sim-qr-row i.on{background:var(--azul);border-color:var(--azul)}
.sim-corrigir{border:0;background:var(--azul);color:#fff;font-family:var(--fonte-corpo);font-weight:600;font-size:.95rem;padding:13px 22px;border-radius:10px;cursor:pointer;box-shadow:0 8px 20px rgba(37,99,235,.3);transition:transform .15s}
.sim-corrigir:hover{transform:translateY(-2px)}
.sim-qr-result{animation:simfade .3s ease}
.sim-qr-aluno{font-weight:600;color:var(--tinta);margin-bottom:8px}
.sim-qr-nota{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}
.sim-qr-nota strong{font-family:var(--fonte-titulo);font-size:2.4rem;color:#059669;line-height:1}
.sim-qr-nota span{font-size:.9rem;color:var(--cinza)}
.sim-qr-ok{display:inline-flex;align-items:center;gap:8px;color:#059669;font-weight:700;font-size:.92rem}
.sim-qr-ok svg{width:20px;height:20px}
/* Calendário */
.sim-cal-head,.sim-cal-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:6px}
.sim-cal-head{margin-bottom:8px}
.sim-cal-head span{text-align:center;font-size:.75rem;font-weight:700;color:var(--cinza)}
.sim-cal-grid span{aspect-ratio:1;display:flex;align-items:center;justify-content:center;border-radius:8px;font-size:.85rem;color:var(--tinta-2);position:relative}
.sim-cal-grid .mut{color:#CBD5E1}
.sim-cal-grid .today{background:var(--azul);color:#fff;font-weight:700}
.sim-cal-grid .ev::after{content:"";position:absolute;bottom:5px;width:5px;height:5px;border-radius:50%}
.sim-cal-grid .ev-b::after{background:#2563EB}
.sim-cal-grid .ev-p::after{background:#DB2777}
.sim-cal-grid .ev-g::after{background:#059669}
.sim-cal-leg{list-style:none;display:flex;flex-wrap:wrap;gap:16px;margin-top:16px;padding-top:14px;border-top:1px solid var(--linha)}
.sim-cal-leg li{display:flex;align-items:center;gap:8px;font-size:.85rem;color:var(--tinta-2)}
.sim-nota{text-align:center;font-size:.85rem;color:var(--cinza);margin-top:16px}

/* ---------- Responsivo ---------- */
@media(max-width:900px){
  .grid-3{grid-template-columns:1fr}
  .grid-rec{grid-template-columns:1fr 1fr}
  .destaque-box,.escola-box{grid-template-columns:1fr;gap:40px}
  .destaque-visual{order:-1}
  .escola-visual{display:none}
  /* Sim: sidebar vira barra de navegação em cima */
  .sim{grid-template-columns:1fr}
  .sim-side{border-right:0;border-bottom:1px solid var(--linha);padding:12px}
  .sim-brand{border-bottom:0;margin-bottom:4px;padding-bottom:8px}
  .sim-nav{flex-direction:row;overflow-x:auto;gap:6px;-webkit-overflow-scrolling:touch;padding-bottom:2px}
  .sim-navitem{flex-shrink:0;width:auto;padding:9px 14px}
  .sim-cards{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  .site-nav a:not(.nav-cta){display:none}
  .grid-rec{grid-template-columns:1fr}
  .hero-stats{gap:26px}
  .escola-cols{grid-template-columns:1fr}
  .secao{padding:60px 0}
  .sim-cards{grid-template-columns:1fr}
  .sim-qr-demo{grid-template-columns:1fr;gap:20px;justify-items:center;text-align:center}
  .sim-body{padding:18px 14px}
}