/* =====================================================================
   DEPÓSITO NELINHO — Materiais de Construção
   Sistema visual: "O Balcão de Confiança"
   Azul estrutural + vermelho de energia, sobre neutros de concreto.
   Cores em hex verificado (WCAG AA); OKLCH de origem em comentário.
   ===================================================================== */

/* ---------- Tokens ---------- */
:root {
  /* Azul — cor dominante e estrutural */
  --blue:         #0c53a3; /* oklch(.45 .145 256) */
  --blue-strong:  #0f3b78; /* oklch(.36 .115 258) — header/hero */
  --blue-deep:    #0a2045; /* oklch(.25 .075 260) — footer/base */
  --blue-tint:    #e5effe; /* oklch(.95 .022 256) — superfície suave */

  /* Vermelho — faísca de energia (uso ≤15%) */
  --red:          #ce2324; /* oklch(.55 .205 27) */
  --red-strong:   #b20111; /* oklch(.48 .195 27) — hover */
  --red-tint:     #ffe9e6; /* oklch(.955 .030 25) */

  /* Neutros de concreto (frios, puxados ao azul; nunca creme) */
  --bg:           #f9fafc; /* oklch(.985 .003 256) */
  --surface:      #f1f4f7; /* oklch(.965 .005 256) */
  --surface-2:    #e4e8ed; /* oklch(.93 .008 256) */
  --border:       #d3d8de; /* oklch(.88 .010 256) */
  --ink:          #1e242f; /* oklch(.26 .022 260) — texto */
  --ink-2:        #495362; /* oklch(.44 .028 258) — texto secundário (7.5:1) */
  --white:        #ffffff;

  /* WhatsApp — cor de ação própria (verde acessível p/ texto branco) */
  --wa:           #0a7d51; /* verde WhatsApp escurecido p/ contraste AA */
  --wa-strong:    #086641;

  /* Tipografia */
  --font: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --fs-hero: clamp(2.15rem, 1.35rem + 3.6vw, 3.5rem);
  --fs-h2:   clamp(1.65rem, 1.25rem + 1.8vw, 2.5rem);
  --fs-h3:   clamp(1.2rem, 1.08rem + 0.55vw, 1.45rem);
  --fs-h4:   1.15rem;
  --fs-lead: clamp(1.08rem, 1.0rem + 0.4vw, 1.28rem);
  --fs-body: 1.0625rem;
  --fs-sm:   0.9rem;
  --lh-tight: 1.06;
  --lh-body: 1.62;

  /* Espaçamento & forma */
  --container: 1140px;
  --pad-x: clamp(1.15rem, 0.6rem + 2.6vw, 2.5rem);
  --section-y: clamp(3.5rem, 2rem + 5vw, 6.5rem);
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 22px;
  --r-pill: 999px;

  /* Elevação — plano por padrão, sombra só como resposta a estado */
  --sh-1: 0 1px 2px rgba(10,32,69,.05), 0 2px 10px rgba(10,32,69,.05);
  --sh-2: 0 8px 26px rgba(10,32,69,.10);
  --sh-hover: 0 16px 38px rgba(10,32,69,.16);
  --sh-blue: 0 10px 26px rgba(12,83,163,.28);
  --sh-wa: 0 10px 26px rgba(10,125,81,.30);

  /* Camadas semânticas */
  --z-header: 100;
  --z-nav: 150;
  --z-fab: 200;

  /* Movimento */
  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur: .45s;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, svg, iframe { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }
h1, h2, h3, h4 { line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; text-wrap: balance; }
p { text-wrap: pretty; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--pad-x); }

.skip-link {
  position: absolute; left: 50%; translate: -50% -140%;
  top: 8px; z-index: 300;
  background: var(--blue); color: #fff; padding: .7rem 1.2rem;
  border-radius: var(--r-pill); font-weight: 700; box-shadow: var(--sh-2);
  transition: translate .2s var(--ease);
}
.skip-link:focus { translate: -50% 0; }

/* ---------- Botões ---------- */
.btn {
  --btn-bg: var(--blue);
  --btn-fg: #fff;
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: .8rem 1.4rem;
  font: inherit; font-weight: 700; font-size: 1rem; line-height: 1.1;
  color: var(--btn-fg); background: var(--btn-bg);
  border: 2px solid transparent; border-radius: var(--r-pill);
  cursor: pointer; text-align: center;
  transition: transform .18s var(--ease), box-shadow .25s var(--ease), background-color .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--sh-blue); }
.btn:active { transform: translateY(0); }
.btn-lg { padding: 1rem 1.7rem; font-size: 1.075rem; }

.btn-whatsapp { --btn-bg: var(--wa); box-shadow: var(--sh-1); }
.btn-whatsapp:hover { --btn-bg: var(--wa-strong); box-shadow: var(--sh-wa); }
.ico-wa { flex: none; }

.btn-ghost {
  --btn-bg: transparent; --btn-fg: #fff;
  border-color: rgba(255,255,255,.55); backdrop-filter: none;
}
.btn-ghost:hover { --btn-bg: rgba(255,255,255,.12); box-shadow: none; border-color: #fff; }

.btn-outline {
  --btn-bg: transparent; --btn-fg: var(--blue);
  border-color: var(--blue);
}
.btn-outline:hover { --btn-bg: var(--blue); --btn-fg: #fff; box-shadow: var(--sh-blue); }

.link-strong { color: var(--blue); font-weight: 700; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; text-decoration-color: var(--red); }
.link-strong:hover { color: var(--red-strong); }

/* ---------- Cabeçalho ---------- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s var(--ease), border-color .3s var(--ease), background-color .3s var(--ease);
}
.site-header[data-scrolled] {
  box-shadow: var(--sh-1);
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
}
.header-inner { display: flex; align-items: center; gap: 1rem; min-height: 68px; }

.brand { display: inline-flex; align-items: center; gap: .65rem; margin-right: auto; }
.brand-mark { display: grid; place-items: center; flex: none; }
.brand-mark svg { width: 38px; height: 38px; filter: drop-shadow(0 2px 4px rgba(10,32,69,.18)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name { font-weight: 900; font-size: 1.18rem; letter-spacing: -0.03em; color: var(--blue-strong); }
.brand-tagline { font-size: .72rem; font-weight: 600; letter-spacing: .02em; color: var(--ink-2); text-transform: uppercase; }

.main-nav { display: contents; }
.nav-menu { display: flex; align-items: center; gap: .3rem; }
.nav-menu a {
  display: inline-block; padding: .5rem .8rem; border-radius: var(--r-sm);
  font-weight: 600; color: var(--ink); position: relative;
  transition: color .18s var(--ease), background-color .18s var(--ease);
}
.nav-menu a::after {
  content: ""; position: absolute; left: .8rem; right: .8rem; bottom: .34rem; height: 2px;
  background: var(--red); border-radius: 2px; transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease);
}
.nav-menu a:hover { color: var(--blue); }
.nav-menu a:hover::after { transform: scaleX(1); }

.nav-toggle {
  display: none; width: 46px; height: 46px; border: 1px solid var(--border);
  background: var(--white); border-radius: var(--r-sm); cursor: pointer;
  align-items: center; justify-content: center;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  content: ""; display: block; width: 22px; height: 2.5px; background: var(--blue-strong); border-radius: 2px;
  transition: transform .28s var(--ease), opacity .2s var(--ease);
}
.nav-toggle-bars { position: relative; }
.nav-toggle-bars::before { position: absolute; top: -7px; }
.nav-toggle-bars::after { position: absolute; top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after { transform: translateY(-7px) rotate(-45deg); }

.header-cta { padding: .62rem 1.1rem; font-size: .95rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative; display: flex; flex-direction: column;
  min-height: clamp(560px, 84vh, 800px);
  color: #fff; isolation: isolate;
}
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(104deg, rgba(10,32,69,.94) 0%, rgba(15,59,120,.86) 44%, rgba(10,32,69,.42) 100%),
    linear-gradient(to top, rgba(10,32,69,.7), transparent 40%);
}
.hero-inner { flex: 1 1 auto; display: flex; align-items: center; padding-block: clamp(3rem, 8vh, 6rem); }
.hero-content { max-width: 42rem; }
.hero-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-weight: 700; font-size: .9rem; letter-spacing: .01em;
  color: #fff; background: var(--red);
  padding: .35rem .85rem; border-radius: var(--r-pill); margin-bottom: 1.15rem;
  box-shadow: 0 4px 14px rgba(178,1,17,.4);
}
.hero-title { font-size: var(--fs-hero); font-weight: 900; letter-spacing: -0.035em; line-height: var(--lh-tight); }
.hero-subtitle {
  margin-top: 1.15rem; font-size: var(--fs-lead); line-height: 1.55;
  color: rgba(255,255,255,.92); max-width: 34rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }

.hero-trust {
  display: flex; flex-wrap: wrap; gap: .4rem 2.2rem;
  background: var(--blue-deep);
  border-top: 3px solid var(--red);
  padding: 1.1rem var(--pad-x);
  justify-content: center;
}
.hero-trust li { display: flex; align-items: center; gap: .7rem; font-size: .96rem; color: rgba(255,255,255,.9); }
.hero-trust strong { color: #fff; font-weight: 800; }
.trust-ico { display: grid; place-items: center; width: 40px; height: 40px; flex: none; color: #fff; background: rgba(255,255,255,.1); border-radius: var(--r-sm); }

/* ---------- Seções ---------- */
.section { padding-block: var(--section-y); }
.section-header { max-width: 40rem; margin-bottom: clamp(2rem, 4vw, 3rem); }
.section-title { font-size: var(--fs-h2); color: var(--blue-strong); }
.section-title--light { color: #fff; }
.section-lead { margin-top: .7rem; font-size: var(--fs-lead); color: var(--ink-2); }
.subsection-title {
  font-size: var(--fs-h3); color: var(--ink); margin-block: 2.4rem 1.2rem;
  display: flex; align-items: center; gap: .8rem;
}
.subsection-title::after { content: ""; flex: 1; height: 2px; background: linear-gradient(to right, var(--surface-2), transparent); }

/* ---------- Produtos: destaque ---------- */
.produtos { background: var(--bg); }
.produtos-destaque {
  display: grid; gap: 1.1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.produto {
  display: flex; gap: 1.1rem; align-items: flex-start;
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 1.5rem; box-shadow: var(--sh-1);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.produto:hover { transform: translateY(-4px); box-shadow: var(--sh-hover); border-color: color-mix(in srgb, var(--blue) 40%, var(--border)); }
.produto-ico {
  flex: none; display: grid; place-items: center; width: 60px; height: 60px;
  color: var(--blue); background: var(--blue-tint); border-radius: 14px;
}
.produto h4 { font-size: var(--fs-h4); color: var(--blue-strong); margin-bottom: .3rem; }
.produto p { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.5; }

/* ---------- Produtos: categorias ---------- */
.categorias-grid {
  display: grid; gap: .8rem;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}
.categoria {
  display: flex; gap: .9rem; align-items: center;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 1rem 1.15rem;
  transition: transform .25s var(--ease), background-color .25s var(--ease), border-color .25s var(--ease);
}
.categoria:hover { transform: translateY(-3px); background: var(--white); border-color: color-mix(in srgb, var(--blue) 35%, var(--border)); box-shadow: var(--sh-2); }
.categoria-ico { flex: none; display: grid; place-items: center; width: 44px; height: 44px; color: var(--blue); background: var(--white); border: 1px solid var(--border); border-radius: 11px; }
.categoria:hover .categoria-ico { color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, var(--border)); }
.categoria h4 { font-size: 1rem; color: var(--ink); }
.categoria p { font-size: .82rem; color: var(--ink-2); line-height: 1.4; margin-top: .12rem; }

.produtos-cta {
  margin-top: 2.5rem; text-align: center; font-size: var(--fs-lead); color: var(--ink);
  background: var(--blue-tint); border-radius: var(--r-md); padding: 1.4rem 1.5rem;
}

/* ---------- Sobre ---------- */
.sobre { background: var(--surface); }
.sobre-grid { display: grid; gap: clamp(2rem, 5vw, 4rem); grid-template-columns: 1fr; align-items: start; }
.sobre-lead { font-size: var(--fs-lead); color: var(--ink); margin-block: 1rem 1.8rem; max-width: 34rem; }
.diferenciais { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.diferenciais li { display: flex; gap: .9rem; align-items: flex-start; }
.dif-ico { flex: none; display: grid; place-items: center; width: 48px; height: 48px; color: #fff; background: var(--blue); border-radius: 12px; box-shadow: var(--sh-blue); }
.diferenciais h3 { font-size: 1.08rem; color: var(--blue-strong); margin-bottom: .2rem; }
.diferenciais p { font-size: var(--fs-sm); color: var(--ink-2); line-height: 1.5; }

/* ---------- Entrega ---------- */
.entrega { background: var(--blue-strong); color: #fff; position: relative; overflow: hidden; }
.entrega::before {
  content: ""; position: absolute; inset: 0; opacity: .5; pointer-events: none;
  background: radial-gradient(60% 90% at 100% 0%, rgba(206,35,36,.35), transparent 60%),
              radial-gradient(50% 80% at 0% 100%, rgba(12,83,163,.5), transparent 60%);
}
.entrega-inner { position: relative; display: grid; gap: clamp(2rem, 5vw, 3.5rem); grid-template-columns: 1fr; align-items: center; }
.entrega-lead { font-size: var(--fs-lead); color: rgba(255,255,255,.9); margin-block: 1rem 2rem; max-width: 32rem; }
.passos { display: grid; gap: 1rem; }
.passos li {
  display: flex; gap: 1.1rem; align-items: center;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.16);
  border-radius: var(--r-md); padding: 1.1rem 1.3rem;
}
.passo-num {
  flex: none; display: grid; place-items: center; width: 46px; height: 46px;
  font-weight: 900; font-size: 1.25rem; color: #fff; background: var(--red);
  border-radius: var(--r-pill); box-shadow: 0 6px 16px rgba(178,1,17,.45);
}
.passos h3 { font-size: 1.12rem; color: #fff; }
.passos p { font-size: var(--fs-sm); color: rgba(255,255,255,.82); line-height: 1.5; }

/* ---------- Contato ---------- */
.contato { background: var(--bg); }
.contato-grid { display: grid; gap: clamp(1.6rem, 4vw, 3rem); grid-template-columns: 1fr; }
.info-bloco + .info-bloco { margin-top: 1.8rem; }
.contato-info h3 { font-size: 1.05rem; color: var(--blue-strong); margin-bottom: .5rem; }
.contato-info address { font-style: normal; color: var(--ink); font-size: 1.05rem; line-height: 1.6; }
.contato-linhas { display: flex; flex-direction: column; gap: .7rem; }
.contato-acao { display: inline-flex; align-items: center; gap: .8rem; font-weight: 700; font-size: 1.1rem; color: var(--ink); width: fit-content; padding: .35rem 0; transition: color .2s var(--ease); }
.contato-acao:hover { color: var(--blue); }
.contato-acao-ico { display: grid; place-items: center; width: 42px; height: 42px; flex: none; color: var(--blue); background: var(--blue-tint); border-radius: 11px; }
.contato-acao-ico--wa { color: var(--wa); background: color-mix(in srgb, var(--wa) 14%, var(--white)); }
.contato-rotulo { display: block; font-size: .74rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); }
.horario { width: 100%; border-collapse: collapse; max-width: 24rem; }
.horario th, .horario td { text-align: left; padding: .55rem 0; border-bottom: 1px solid var(--border); font-size: 1rem; }
.horario th { font-weight: 600; color: var(--ink); }
.horario td { text-align: right; color: var(--ink-2); font-weight: 600; }
.horario .fechado { color: var(--red-strong); }
.contato-mapa { border-radius: var(--r-md); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--sh-2); min-height: 340px; background: var(--surface-2); }
.contato-mapa iframe { width: 100%; height: 100%; min-height: 340px; }

/* ---------- Rodapé ---------- */
.site-footer { background: var(--blue-deep); color: rgba(255,255,255,.78); padding-top: clamp(3rem, 5vw, 4.5rem); }
.footer-inner { display: grid; gap: 2rem; grid-template-columns: 1fr; padding-bottom: 2.5rem; }
.footer-brand .brand-name { font-size: 1.35rem; font-weight: 900; color: #fff; letter-spacing: -0.03em; }
.footer-brand p { margin-top: .6rem; max-width: 26rem; font-size: .95rem; }
.footer-col h3 { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--red); margin-bottom: .8rem; font-weight: 800; }
.footer-col address { font-style: normal; line-height: 1.7; font-size: .95rem; margin-bottom: .5rem; }
.footer-col a { font-weight: 600; color: #fff; text-decoration: underline; text-decoration-color: rgba(255,255,255,.35); text-underline-offset: 3px; }
.footer-col a:hover { text-decoration-color: var(--red); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-block: 1.4rem 1.6rem; }
.footer-bottom p { font-size: .85rem; color: rgba(255,255,255,.6); }

/* ---------- FAB WhatsApp ---------- */
.fab-whatsapp {
  position: fixed; right: clamp(1rem, 3vw, 2rem); bottom: clamp(1rem, 3vw, 2rem);
  z-index: var(--z-fab);
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .85rem 1.15rem; border-radius: var(--r-pill);
  background: var(--wa); color: #fff; font-weight: 800;
  box-shadow: var(--sh-wa);
  opacity: 0; transform: translateY(18px) scale(.9); pointer-events: none;
  transition: opacity .35s var(--ease), transform .35s var(--ease), background-color .2s var(--ease);
}
.fab-whatsapp[data-show] { opacity: 1; transform: none; pointer-events: auto; }
.fab-whatsapp:hover { background: var(--wa-strong); transform: translateY(-2px); }
.fab-whatsapp svg { flex: none; }
.fab-label { font-size: 1rem; }

/* ---------- Reveal on scroll (progressive enhancement) ---------- */
.js-reveal .reveal { opacity: 0; transform: translateY(22px); }
.js-reveal .reveal.is-visible {
  opacity: 1; transform: none;
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
/* Stagger dentro das grades de itens */
.js-reveal .produtos-destaque .produto,
.js-reveal .categorias-grid .categoria { transition-delay: calc(var(--i, 0) * 55ms); }

/* ---------- Responsivo ---------- */
@media (max-width: 859px) {
  .nav-toggle { display: inline-flex; order: 3; }
  .header-cta { display: none; }
  .main-nav { display: block; }
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: .1rem;
    background: var(--white); border-bottom: 1px solid var(--border);
    box-shadow: var(--sh-2); padding: .5rem var(--pad-x) 1rem;
    z-index: var(--z-nav);
    clip-path: inset(0 0 100% 0); opacity: 0; pointer-events: none;
    transition: clip-path .32s var(--ease), opacity .25s var(--ease);
  }
  .nav-menu.is-open { clip-path: inset(0 0 0 0); opacity: 1; pointer-events: auto; }
  .nav-menu a { display: block; padding: .95rem .6rem; border-radius: var(--r-sm); font-size: 1.05rem; border-bottom: 1px solid var(--surface-2); }
  .nav-menu li:last-child a { border-bottom: 0; }
  .nav-menu a::after { display: none; }
  .nav-menu a:hover { background: var(--blue-tint); }
}

@media (min-width: 720px) {
  .entrega-inner { grid-template-columns: 1.05fr 1fr; }
  .contato-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 860px) {
  .sobre-grid { grid-template-columns: 0.85fr 1.15fr; }
  .brand-tagline { font-size: .74rem; }
}

@media (min-width: 900px) {
  .footer-inner { grid-template-columns: 1.6fr 1fr 1fr; gap: 3rem; }
}

/* ---------- Movimento reduzido ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important; animation-iteration-count: 1 !important;
    transition-duration: .001ms !important; scroll-behavior: auto !important;
  }
  .js-reveal .reveal { opacity: 1; transform: none; }
  .fab-whatsapp[data-show] { transform: none; }
  .btn:hover, .produto:hover, .categoria:hover, .fab-whatsapp:hover { transform: none; }
}