/* IA7 · site de vendas — identidade "Caneta Azul" (papel + tinta) */
:root {
  --papel: #FBFAF6;
  --papel-azul: #EEF1FA;
  --tinta: #1D3FA8;
  --tinta-clara: #8CA6F2;
  --tinta-escura: #142C78;
  --grafite: #14182B;
  --texto: #2A3046;
  --muted: #5C6478;
  --linha: rgba(29, 63, 168, 0.12);
  --margem: #D9483B;
  --ouro: #E2C36F;
  --ouro-tinta: #7A5200;
  --ouro-fundo: #FBF3DC;
  --noite: #12141D;
  --noite-card: #1A1D29;
  --noite-texto: #ECEEF4;
  --verde-zap: #25D366;
  --raio: 18px;
  --sombra: 0 30px 80px rgba(20, 24, 43, 0.14), 0 2px 6px rgba(20, 24, 43, 0.06);
  --f-display: 'Bricolage Grotesque', system-ui, sans-serif;
  --f-sans: 'Instrument Sans', system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; font-family: var(--f-sans); color: var(--texto); background: var(--papel);
  font-size: 17px; line-height: 1.55; -webkit-font-smoothing: antialiased;
  background-image: repeating-linear-gradient(to bottom, transparent 0 35px, rgba(29, 63, 168, 0.045) 35px 36px);
}
img { max-width: 100%; display: block; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--f-display); color: var(--grafite); letter-spacing: -0.025em; line-height: 1.05; margin: 0; }
h1 { font-size: clamp(2.5rem, 6vw, 4.6rem); font-weight: 800; }
h2 { font-size: clamp(1.9rem, 3.8vw, 3rem); font-weight: 800; max-width: 22ch; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0; }

.wrap { width: min(1180px, 100% - 32px); margin-inline: auto; }
.estreito { width: min(780px, 100% - 32px); }

/* ---------- botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 26px;
  border-radius: 14px; font: 600 1rem var(--f-sans); text-decoration: none; cursor: pointer; border: 0;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible, a:focus-visible, summary:focus-visible, input:focus-visible { outline: 3px solid var(--tinta-clara); outline-offset: 3px; }
.btn-tinta { background: var(--tinta); color: white; box-shadow: 0 10px 24px rgba(29, 63, 168, 0.28); }
.btn-tinta:hover { background: var(--tinta-escura); box-shadow: 0 14px 30px rgba(29, 63, 168, 0.34); }
.btn-papel { background: white; color: var(--grafite); border: 1.5px solid rgba(20, 24, 43, 0.14); }
.btn-sm { min-height: 42px; padding: 0 18px; font-size: .92rem; border-radius: 12px; }
.btn-largo { width: 100%; }

/* ---------- topo ---------- */
.topo { position: sticky; top: 0; z-index: 50; background: rgba(251, 250, 246, 0.86); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--linha); }
.topo-in { display: flex; align-items: center; gap: 28px; height: 72px; }
.marca { display: inline-flex; align-items: center; gap: 10px; color: var(--tinta); text-decoration: none; }
.marca svg { width: 36px; height: 36px; }
.marca span { font: 800 1.9rem/1 var(--f-display); letter-spacing: -0.05em; }
.marca-sm svg { width: 28px; height: 28px; } .marca-sm span { font-size: 1.5rem; }
.menu { display: flex; gap: 26px; margin-left: 12px; }
.menu a { text-decoration: none; font-weight: 500; color: var(--muted); }
.menu a:hover { color: var(--tinta); }
.topo-acoes { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.link-entrar { font-weight: 600; text-decoration: none; color: var(--grafite); }
.link-entrar:hover { color: var(--tinta); }

/* ---------- herói ---------- */
.heroi { padding: 72px 0 40px; text-align: center; position: relative; }
.heroi::before { content: ''; position: absolute; inset: 0 0 auto; height: 520px; background: radial-gradient(ellipse at 50% 0%, rgba(140, 166, 242, 0.25), transparent 65%); pointer-events: none; }
.heroi .wrap { position: relative; }
.selo { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px; border-radius: 999px; background: white; border: 1px solid var(--linha); font: 500 .85rem var(--f-mono); letter-spacing: .03em; color: var(--tinta); margin-bottom: 26px; }
.pulso { width: 9px; height: 9px; border-radius: 50%; background: var(--verde-zap); box-shadow: 0 0 0 0 rgba(37, 211, 102, .6); animation: pulso 2s infinite; }
@keyframes pulso { 70% { box-shadow: 0 0 0 10px rgba(37, 211, 102, 0); } 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } }
.heroi h1 { max-width: 17ch; margin-inline: auto; }
.caneta { color: var(--tinta); background: linear-gradient(transparent 78%, rgba(140, 166, 242, .38) 78% 94%, transparent 94%); }
.sub { max-width: 640px; margin: 24px auto 0; font-size: 1.18rem; color: var(--muted); }
.sub b { color: var(--grafite); }
.ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.garantias { list-style: none; padding: 0; margin: 22px 0 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 8px 22px; font: .86rem var(--f-mono); color: var(--muted); }
.garantias li::before { content: '✓ '; color: var(--tinta); font-weight: 600; }

.video-caixa { margin: 56px auto 0; max-width: 1040px; position: relative; border-radius: 22px; overflow: hidden; background: var(--noite); box-shadow: 0 50px 120px rgba(20, 24, 43, .28), 0 0 0 1px rgba(20, 24, 43, .08); aspect-ratio: 16 / 9; }
.video-caixa video { width: 100%; height: 100%; display: block; object-fit: cover; }
.video-som { position: absolute; right: 18px; bottom: 18px; display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 999px; border: 0; background: rgba(255, 255, 255, .95); color: var(--grafite); font: 600 .95rem var(--f-sans); cursor: pointer; box-shadow: 0 10px 30px rgba(0, 0, 0, .3); }
.video-som .play { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--tinta); color: white; font-size: .7rem; }
.video-som[hidden] { display: none; }

/* ---------- seções ---------- */
.secao { padding: 104px 0; position: relative; }
.secao-azul { background: var(--papel-azul); background-image: none; }
.rubrica { font: 500 .8rem var(--f-mono); letter-spacing: .1em; text-transform: uppercase; color: var(--tinta); margin-bottom: 16px; }
.lead { margin-top: 18px; font-size: 1.12rem; color: var(--muted); max-width: 56ch; }

.grade { margin-top: 52px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cartao { background: white; border: 1px solid var(--linha); border-radius: var(--raio); padding: 26px 24px; transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; }
.cartao:hover { transform: translateY(-4px); box-shadow: var(--sombra); border-color: rgba(29, 63, 168, .3); }
.cartao .num { font: 500 .8rem var(--f-mono); color: var(--tinta-clara); }
.cartao h3 { margin-top: 18px; }
.cartao p { margin-top: 8px; font-size: .95rem; color: var(--muted); }

/* Isis (noite) */
.secao-noite { background: var(--noite); color: var(--noite-texto); background-image: radial-gradient(ellipse at 80% 0%, rgba(91, 124, 230, .2), transparent 55%); }
.secao-noite h2 { color: var(--noite-texto); max-width: 24ch; }
.secao-noite .rubrica { color: var(--tinta-clara); }
.secao-noite .lead { color: rgba(236, 238, 244, .7); }
.isis-grade { margin-top: 56px; display: grid; grid-template-columns: 420px 1fr; gap: 72px; align-items: center; }
.celular { background: #0B0C10; border-radius: 48px; padding: 12px; box-shadow: 0 40px 100px rgba(0, 0, 0, .5), inset 0 0 0 2px rgba(255, 255, 255, .08); }
.cel-topo { display: flex; align-items: center; gap: 12px; background: #075E54; color: white; padding: 18px 18px 14px; border-radius: 38px 38px 0 0; }
.cel-topo .av { width: 42px; height: 42px; border-radius: 50%; background: #9AA7C7; display: grid; place-items: center; font-weight: 700; color: var(--grafite); }
.cel-topo small { display: block; opacity: .8; font-size: .8rem; }
.cel-chat { background: #ECE5DD; padding: 16px 14px 22px; border-radius: 0 0 38px 38px; display: flex; flex-direction: column; gap: 8px; position: relative; }
.msg { max-width: 84%; padding: 9px 12px 6px; border-radius: 14px; font-size: .92rem; line-height: 1.35; color: #111B21; box-shadow: 0 1px 1px rgba(0, 0, 0, .1); }
.msg i { display: block; text-align: right; font-style: normal; font-size: .7rem; color: #667781; margin-top: 2px; }
.msg.in { background: white; align-self: flex-start; border-top-left-radius: 4px; }
.msg.out { background: #D9FDD3; align-self: flex-end; border-top-right-radius: 4px; }
.msg.foto img { border-radius: 10px; margin-bottom: 6px; width: 100%; height: auto; aspect-ratio: 300 / 190; object-fit: cover; }
.carimbo { align-self: center; margin-top: 8px; padding: 8px 16px; border: 2.5px solid var(--ouro-tinta); border-radius: 10px; background: var(--ouro-fundo); color: var(--ouro-tinta); font: 500 .85rem var(--f-mono); letter-spacing: .05em; text-transform: uppercase; transform: rotate(-3deg); }
.lista-caneta { list-style: none; margin: 0; padding: 0; display: grid; gap: 22px; }
.lista-caneta li { position: relative; padding-left: 46px; font-size: 1.05rem; color: rgba(236, 238, 244, .75); }
.lista-caneta li b { color: var(--noite-texto); }
.lista-caneta li::before { content: ''; position: absolute; left: 0; top: 2px; width: 28px; height: 28px; border: 2px solid rgba(140, 166, 242, .5); border-radius: 8px; background: no-repeat center / 18px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4L19 7' fill='none' stroke='%238CA6F2' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E"); }

/* duo texto + tela */
.duo { display: grid; grid-template-columns: 1fr 1.25fr; gap: 64px; align-items: center; }
.duo.invertido .texto { order: 2; }
.topicos { list-style: none; padding: 0; margin: 30px 0 0; display: grid; gap: 16px; }
.topicos li { padding-left: 18px; border-left: 3px solid var(--tinta); }
.topicos b { display: block; color: var(--grafite); }
.topicos span { color: var(--muted); font-size: .97rem; }
.tela { margin: 0; border-radius: 16px; overflow: hidden; background: white; box-shadow: var(--sombra); border: 1px solid rgba(20, 24, 43, .08); transform: perspective(1800px) rotateY(-4deg); transition: transform .5s ease; }
.duo.invertido .tela { transform: perspective(1800px) rotateY(4deg); }
.tela:hover, .duo.invertido .tela:hover { transform: none; }
.tela::before { content: ''; display: block; height: 30px; background: #F1EFEA url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='12'%3E%3Ccircle cx='6' cy='6' r='5' fill='%23FF5F57'/%3E%3Ccircle cx='24' cy='6' r='5' fill='%23FEBC2E'/%3E%3Ccircle cx='42' cy='6' r='5' fill='%2328C840'/%3E%3C/svg%3E") no-repeat 14px center; }
.tela-escura { background: #1A1D27; } .tela-escura::before { background-color: #232634; }
.tela img { width: 100%; height: auto; }
.logos-portais { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.logos-portais img { height: 44px; width: auto; padding: 8px 14px; background: white; border-radius: 12px; border: 1px solid var(--linha); }

/* passos */
.passos { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; counter-reset: p; }
.passos li { counter-increment: p; background: white; border-radius: var(--raio); padding: 28px 26px; border: 1px solid var(--linha); }
.passos li::before { content: counter(p, decimal-leading-zero); display: block; font: 800 2.4rem/1 var(--f-display); color: var(--tinta); margin-bottom: 16px; }
.passos b { display: block; font: 700 1.2rem var(--f-display); color: var(--grafite); }
.passos span { display: block; margin-top: 6px; color: var(--muted); }

/* dúvidas */
details { border-bottom: 1px solid var(--linha); }
details:first-of-type { margin-top: 36px; border-top: 1px solid var(--linha); }
summary { list-style: none; cursor: pointer; padding: 22px 40px 22px 0; font: 700 1.15rem var(--f-display); color: var(--grafite); position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 6px; top: 16px; font: 400 1.8rem var(--f-sans); color: var(--tinta); transition: transform .25s; }
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 0 22px; color: var(--muted); max-width: 64ch; }

/* CTA final */
.final { background: var(--tinta); color: white; padding: 96px 0; background-image: radial-gradient(ellipse at 10% 0%, rgba(140, 166, 242, .35), transparent 55%); }
.final-in { display: grid; grid-template-columns: 1fr 460px; gap: 64px; align-items: center; }
.final h2 { color: white; }
.final .rubrica { color: var(--ouro); }
.final .lead { color: rgba(255, 255, 255, .8); }
.form { background: white; color: var(--texto); border-radius: 22px; padding: 30px; box-shadow: 0 40px 90px rgba(10, 20, 60, .35); display: grid; gap: 16px; }
.form label { display: grid; gap: 6px; font-weight: 600; font-size: .92rem; color: var(--grafite); }
.form input:not([type=radio]) { height: 50px; border-radius: 12px; border: 1.5px solid rgba(20, 24, 43, .16); padding: 0 14px; font: 1rem var(--f-sans); background: var(--papel); }
.form input:not([type=radio]):focus { border-color: var(--tinta); outline: none; box-shadow: 0 0 0 4px rgba(29, 63, 168, .12); }
.form input[aria-invalid=true] { border-color: var(--margem); }
fieldset { border: 0; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
legend { font-weight: 600; font-size: .92rem; color: var(--grafite); margin-bottom: 8px; padding: 0; }
.chip { display: inline-flex !important; grid-auto-flow: column; align-items: center; gap: 6px !important; padding: 9px 14px; border-radius: 999px; border: 1.5px solid rgba(20, 24, 43, .14); cursor: pointer; font-weight: 500 !important; }
.chip input { accent-color: var(--tinta); margin: 0; }
.chip:has(input:checked) { border-color: var(--tinta); background: var(--papel-azul); color: var(--tinta); }
.form-nota { font-size: .82rem; color: var(--muted); text-align: center; }

/* rodapé */
.rodape { padding: 48px 0; border-top: 1px solid var(--linha); }
.rodape-in { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 28px; }
.rodape p { color: var(--muted); }
.rodape nav { margin-left: auto; display: flex; gap: 22px; }
.rodape nav a { text-decoration: none; color: var(--muted); font-weight: 500; }
.rodape nav a:hover { color: var(--tinta); }
.rodape small { width: 100%; color: var(--muted); font-family: var(--f-mono); }

/* botão flutuante */
.flutuante { position: fixed; right: 20px; bottom: 20px; z-index: 60; width: 60px; height: 60px; border-radius: 50%; background: var(--verde-zap); color: white; display: grid; place-items: center; box-shadow: 0 14px 30px rgba(37, 211, 102, .45); transition: transform .2s; }
.flutuante:hover { transform: scale(1.08); }
.flutuante svg { width: 32px; height: 32px; }

/* revelar ao rolar */
.revelar { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.16, 1, .3, 1); }
.revelar.visivel { opacity: 1; transform: none; }

/* ---------- responsivo ---------- */
@media (max-width: 1020px) {
  .grade { grid-template-columns: repeat(2, 1fr); }
  .isis-grade, .duo, .final-in { grid-template-columns: 1fr; gap: 44px; }
  .duo.invertido .texto { order: 0; }
  .celular { max-width: 400px; margin-inline: auto; }
  .tela, .duo.invertido .tela { transform: none; }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .menu, .link-entrar { display: none; }
  .topo-in { height: 64px; }
  .heroi { padding-top: 48px; }
  .secao { padding: 72px 0; }
  .grade, .passos { grid-template-columns: 1fr; }
  .video-caixa { margin-top: 40px; border-radius: 14px; }
  .video-som { right: 10px; bottom: 10px; padding: 9px 14px; font-size: .85rem; }
  .form { padding: 22px; }
  .rodape nav { margin-left: 0; }
}
@media (max-width: 420px) {
  .topo-acoes .btn-sm { padding: 0 12px; font-size: .85rem; }
  .ctas .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .revelar { opacity: 1; transform: none; transition: none; }
  .pulso { animation: none; }
}