/* LurIA — layout da home. Componentes vêm de bundle.css (prefixo lu-), cores e
   medidas de tokens.css; aqui só fica o que é específico desta página. */
html { scroll-padding-top: 88px; background: var(--surface); }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body { margin: 0; background: var(--surface); }
/* classes com display (ex.: .lu-btn) não podem vencer o atributo hidden */
[hidden] { display: none !important; }
/* texto só para leitores de tela */
.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; }
.lu { min-height: 100vh; }
.lu img { max-width: 100%; }

.wrap { max-width: var(--container); margin: 0 auto; padding: 0 var(--space-6); }
.lu section { padding: var(--space-9) 0; }
.alt { background: var(--surface-alt); }
.skip { position: absolute; left: var(--space-4); top: -60px; z-index: 10; background: var(--brand); color: var(--on-brand) !important; padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); font-weight: 700; }
.skip:focus { top: var(--space-3); }

/* Navbar */
.site-header { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--surface) 88%, transparent); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.lu-logo .mark svg { width: 20px; height: 20px; display: block; }
.lu-logo .mark .dot-in { fill: var(--brand); }

/* Botão de tema claro/escuro — mostra a lua no claro e o sol no escuro */
.lu-nav .actions { align-items: center; }
/* Os dois ícones ficam empilhados; o que sai gira e encolhe, o que entra gira de volta e cresce */
.lu-theme { width: 40px; height: 40px; flex: none; border-radius: 50%; border: 1px solid var(--line); background: var(--surface-raised); color: var(--ink); display: grid; place-items: center; cursor: pointer; padding: 0; overflow: hidden; transition: border-color .15s, color .15s, transform .15s; }
.lu-theme:hover { border-color: var(--brand); color: var(--brand); }
.lu-theme:active { transform: scale(.92); }
.lu-theme svg { grid-area: 1 / 1; width: 18px; height: 18px; transition: transform .5s cubic-bezier(.2,.7,.2,1), opacity .3s ease; }
.lu-theme .i-sun { opacity: 0; transform: rotate(-90deg) scale(.4); }
[data-theme="dark"] .lu-theme .i-sun { opacity: 1; transform: none; }
[data-theme="dark"] .lu-theme .i-moon { opacity: 0; transform: rotate(90deg) scale(.4); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .lu-theme .i-sun { opacity: 1; transform: none; }
  :root:not([data-theme="light"]) .lu-theme .i-moon { opacity: 0; transform: rotate(90deg) scale(.4); }
}
@media (prefers-reduced-motion: reduce) { .lu-theme, .lu-theme svg { transition: none; } }

/* Troca de tema: o novo tema se espalha em círculo a partir do botão (View Transitions; ver o script) */
::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; }

/* Hero */
.lu section.hero { padding: var(--space-8) 0 var(--space-9); }
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: var(--space-7); align-items: center; }
.hero .lu-display { margin: var(--space-3) 0 var(--space-5); }
.hero .ctas { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-6); }
.trust { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5); margin-top: var(--space-6); font-size: 14px; font-weight: 600; color: var(--ink-muted); }
.trust span { display: inline-flex; align-items: center; gap: 6px; }
.trust svg { width: 16px; height: 16px; color: var(--success); }

.hub { position: relative; height: 420px; }
.hub svg.lines { position: absolute; inset: 0; width: 100%; height: 100%; }
.hub .ln { fill: none; stroke: var(--line-strong); stroke-width: 1.5; stroke-dasharray: 4 5; }
.hub .ln.on { stroke: var(--brand); stroke-dasharray: none; stroke-width: 2; }
.hub .n { position: absolute; display: inline-flex; align-items: center; gap: 8px; height: 44px; padding: 0 14px 0 8px; border-radius: var(--radius-md); background: var(--surface-raised); border: 1px solid var(--line); box-shadow: var(--shadow-card); font-size: 14px; font-weight: 700; transform: translateY(-50%); white-space: nowrap; }
.hub .n i { width: 28px; height: 28px; border-radius: 8px; background: var(--brand-soft); color: var(--brand-ink); display: grid; place-items: center; font-style: normal; }
.hub .n i svg { width: 16px; height: 16px; }
/* Menu: itens de duas palavras não quebram; espaçamento menor perto do limite em que o menu some */
.lu-nav ul a { white-space: nowrap; }
@media (max-width: 1180px) { .lu-nav { gap: var(--space-5); } .lu-nav ul { gap: var(--space-5); } .lu-nav ul a { font-size: 14px; } }

/* Núcleo: o próprio ícone oficial (logos/svg/luria_icone_roxo.svg), legenda em etiqueta logo abaixo */
.hub .core { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); width: 132px; height: 132px; }
.hub .core > div { width: 100%; height: 100%; border-radius: 34px; box-shadow: var(--shadow-brand); }
.hub .core img { display: block; width: 100%; height: 100%; }
.hub .core span { position: absolute; top: calc(100% + 12px); left: 50%; transform: translateX(-50%); white-space: nowrap; padding: 4px 10px; border-radius: var(--radius-pill); background: var(--surface-raised); border: 1px solid var(--line); color: var(--ink-muted); font-size: 12px; font-weight: 600; line-height: 16px; }

/* Faixa "o que fazemos" */
.what { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.what div { padding: var(--space-5); display: flex; gap: var(--space-3); align-items: center; font-weight: 700; font-size: 15px; }
.what div + div { border-left: 1px solid var(--line); }
.what i { width: 40px; height: 40px; border-radius: 10px; background: var(--brand-soft); color: var(--brand); display: grid; place-items: center; flex: none; }
.what i svg { width: 20px; height: 20px; }
.lu section#calc { margin-top: var(--space-9); }

/* Mapa: painéis estáticos por aba */
.lu-map[hidden] { display: none; }
.tabs-scroll { overflow-x: auto; max-width: 100%; }

/* Cases */
.cases-top { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-5); margin-bottom: var(--space-7); }
.lu-metric .ref { font-size: 13px; font-weight: 600; }
.lu-cases li { display: block; padding: 0; }
.lu-cases summary { display: grid; grid-template-columns: 40px 1fr auto 16px; gap: var(--space-4); align-items: center; padding: var(--space-4) 0; cursor: pointer; list-style: none; }
.lu-cases summary::-webkit-details-marker { display: none; }
.lu-cases summary::after { content: ""; width: 8px; height: 8px; border-right: 2px solid var(--brand); border-bottom: 2px solid var(--brand); transform: rotate(45deg) translateY(-3px); transition: transform .2s; justify-self: center; }
.lu-cases details[open] summary::after { transform: rotate(225deg); }
.lu-cases summary:hover b { color: var(--brand); }
.case-body { display: grid; gap: var(--space-4); padding: 0 0 var(--space-5) 56px; max-width: 880px; }
.case-body .cat { font-size: 13px; font-weight: 700; color: var(--brand); margin: 0; }
.case-body dl { display: grid; grid-template-columns: 110px 1fr; gap: var(--space-3) var(--space-4); margin: 0; }
.case-body dt { font-size: 13px; font-weight: 700; color: var(--ink-muted); }
.case-body dd { margin: 0; font-size: 15px; line-height: 24px; }
.case-body .stack { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.case-body .lu-chip { height: 30px; font-size: 13px; }
.lu-cases li:target summary b { color: var(--brand); }

/* Quem constrói */
.lu section.who-sec { padding: var(--space-8) 0; }
.who { display: grid; grid-template-columns: 200px 1fr; gap: var(--space-6); align-items: center; }
.photo { width: 200px; height: 200px; border-radius: var(--radius-lg); background: var(--brand-soft); border: 1px solid var(--line); display: grid; place-items: center; overflow: hidden; }
.photo img { width: 100%; height: 100%; object-fit: cover; }
.photo .mark-lg { width: 96px; height: 96px; border-radius: 26px; background: var(--brand); color: var(--on-brand); display: grid; place-items: center; }
.photo .mark-lg svg { width: 64px; height: 64px; }
.photo .mark-lg .dot-in { fill: var(--brand); }
.who .lu-title { font-size: 32px; margin-top: var(--space-2); }
.who .name { margin: var(--space-3) 0 0; font-weight: 700; }
.who .name span { display: block; font-size: 14px; font-weight: 500; color: var(--ink-muted); }
.who .bio { margin: var(--space-3) 0 0; color: var(--ink-muted); max-width: var(--container-text); }
.guar { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-5); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: var(--space-8); align-items: start; }

/* CTA final com formulário */
.lu section#contato { padding-top: 0; }
.lu-cta { align-items: start; }
.lu-cta .hours { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-5); }
.lu-cta .hours span { font-size: 13px; font-weight: 600; color: var(--on-inverse-muted); border: 1px solid color-mix(in srgb, var(--on-inverse-muted) 40%, transparent); border-radius: var(--radius-pill); padding: 4px 12px; }
.lu-cta .wa { margin-top: var(--space-6); }
.lu-cta .lu-card { color: var(--ink); padding: var(--space-6); }
.contact-form { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.contact-form .full { grid-column: 1 / -1; }
.contact-form textarea { resize: vertical; min-height: 96px; }
.contact-form .lu-btn { width: 100%; }

/* Rodapé */
.site-footer { background: var(--inverse); color: var(--on-inverse-muted); padding: var(--space-8) 0 var(--space-6); font-size: 14px; }
.site-footer .lu-logo, .site-footer .lu-logo:hover { color: var(--on-inverse); }
.site-footer .lu-logo b { color: var(--brand-on-inverse); }
.foot { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--space-6); }
.foot h2 { margin: 0 0 var(--space-3); font-size: 13px; line-height: 18px; font-weight: 700; color: var(--on-inverse); }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.lu .foot a { color: var(--on-inverse-muted); }
.lu .foot a:hover { color: var(--on-inverse); }
.legal { margin-top: var(--space-7); padding-top: var(--space-5); border-top: 1px solid color-mix(in srgb, var(--on-inverse-muted) 25%, transparent); display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between; }

/* Tablet */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hub { max-width: 560px; width: 100%; margin: 0 auto; }
  .lu-calc { grid-template-columns: 1fr; }
  .lu-map, .cases-top { grid-template-columns: 1fr 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 0; }
  .lu-cta { grid-template-columns: 1fr; padding: var(--space-7) var(--space-6); }
  .foot { grid-template-columns: 1fr 1fr; }
  .lu-nav ul { display: none; }
  .lu-nav .actions { margin-left: auto; }
}

/* Celular */
@media (max-width: 680px) {
  .wrap { padding: 0 var(--space-4); }
  .lu section { padding: var(--space-8) 0; }
  .lu section.hero { padding: var(--space-7) 0 var(--space-8); }
  .lu section#calc { margin-top: var(--space-8); }
  .lu-display { font-size: 36px; }
  .lu-title, .lu-cta h2, .who .lu-title { font-size: 30px; }
  .lu-lead { font-size: 17px; line-height: 28px; }
  .hub { display: none; }
  .hero .ctas .lu-btn { width: 100%; }
  .what { grid-template-columns: 1fr 1fr; }
  .what div { padding: var(--space-4) var(--space-3); font-size: 14px; }
  .what div:nth-child(3) { border-left: 0; }
  .what div:nth-child(n+3) { border-top: 1px solid var(--line); }
  .lu-calc .inputs, .lu-calc .results { padding: var(--space-5); }
  .lu-map, .cases-top, .lu-steps { grid-template-columns: 1fr; }
  .lu-cases summary { grid-template-columns: 28px 1fr 16px; gap: var(--space-2) var(--space-3); }
  .lu-cases summary .lu-badge { grid-column: 2; grid-row: 2; justify-self: start; }
  .lu-cases summary::after { grid-column: 3; grid-row: 1; }
  .case-body { padding-left: 0; }
  .case-body dl { grid-template-columns: 1fr; gap: 4px; }
  .case-body dd + dt { margin-top: var(--space-2); }
  .who { grid-template-columns: 1fr; }
  .photo { width: 140px; height: 140px; }
  .lu-cta { padding: var(--space-6) var(--space-4); }
  .lu-cta .lu-card { padding: var(--space-5); }
  .contact-form { grid-template-columns: 1fr; }
  .foot { grid-template-columns: 1fr; }
  .lu-nav .actions .lu-btn { padding: 0 12px; }
}

/* Telas bem estreitas (até 380px): o botão do topo encolhe para caber ao lado do logo,
   sem rolagem lateral (WCAG 1.4.10) */
@media (max-width: 380px) {
  .lu-nav { gap: var(--space-3); }
  .lu-nav .actions .lu-btn { padding: 0 10px; font-size: 13px; }
  .lu-logo { font-size: 18px; }
}

/* Formulário: erro inline, indicador no botão e confirmação sobre o formulário */
.lu-cta .lu-card { position: relative; }
/* .lu-cta p (texto claro do fundo escuro) não pode vazar para dentro do card branco */
.lu-cta .lu-card .form-error { margin: -8px 0 -24px; min-height: 44px; font-size: 13px; line-height: 18px; color: var(--ink); border-radius: var(--radius-sm); padding: 4px var(--space-3); }
.lu-cta .lu-card .form-error:not(:empty) { background: var(--warning-soft); }
.form-error a { text-decoration: underline; overflow-wrap: anywhere; }
.lu-btn .spin { width: 16px; height: 16px; border-radius: 50%; border: 2px solid currentColor; border-right-color: transparent; flex: none; }
.lu-btn[disabled] { cursor: progress; opacity: .85; }
.form-done { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: var(--space-2); padding: var(--space-6); text-align: center; color: var(--ink); }
.form-done[hidden] { display: none !important; }
.form-done .check { width: 56px; height: 56px; margin-bottom: var(--space-2); fill: none; stroke: var(--success); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.lu-cta .lu-card .form-done p { margin: 0; font-size: 15px; line-height: 24px; color: var(--ink-muted); }
.lu-cta .lu-card .form-done .t { font-size: 20px; line-height: 28px; font-weight: 700; color: var(--ink); outline: none; }
.is-sent .contact-form { visibility: hidden; }
@media (max-width: 680px) { .lu-cta .lu-card .form-error { min-height: 62px; } }