/* ============================================================
   DESIGN SYSTEM — EL FLOORING INC
   "Built on Quality. Designed to Last."
   Paleta: Obsidian Black dominante / Warm White na tipografia /
           Slate Wood Gray nos detalhes (mesma arquitetura do
           sistema Roger Brothers, invertida para tema escuro premium)
   ============================================================ */

:root {
  /* Brand colours (paleta oficial EL Flooring) */
  --obsidian:      #0D0D0D;   /* fundo principal */
  --obsidian-soft: #121212;   /* seções alternadas */
  --panel:         #181818;   /* cards / superfícies elevadas */
  --panel-2:       #1f1f1f;   /* hover / nested */
  --slate:         #8A8A8A;   /* slate wood gray — ícones, eyebrows, grafismos */
  --slate-bright:  #b3b3b3;
  --slate-dim:     #6c6c6c;
  --warm:          #E8E4DC;   /* warm white — títulos, textos, CTAs */
  --warm-dim:      #b4b0a8;   /* texto corrido suave */
  --warm-mute:     #8d8a83;   /* texto secundário */

  /* Linhas / divisores */
  --line:        rgba(232,228,220,.10);
  --line-strong: rgba(232,228,220,.18);
  --line-slate:  rgba(138,138,138,.28);

  /* Acento metálico (slate → warm) — usado em barras e detalhes */
  --accent-grad: linear-gradient(90deg, var(--slate-dim) 0%, var(--slate) 35%, var(--warm) 60%, var(--slate) 80%, var(--slate-dim) 100%);

  /* Typography */
  --font-display: 'Montserrat', sans-serif;
  --font-body:    'Plus Jakarta Sans', sans-serif;

  /* Layout */
  --container:  1200px;
  --gutter:     clamp(20px, 4vw, 40px);
  --section-py: clamp(72px, 9vw, 128px);

  /* Motion */
  --ease:     cubic-bezier(.25, .46, .45, .94);
  --ease-out: cubic-bezier(.0,  .0,  .2,  1);
}

/* ============================================================
   RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: clamp(15px, 1.1vw, 17px);
  line-height: 1.68;
  color: var(--warm-dim);
  background: var(--obsidian);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; height: auto; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
}

::selection { background: var(--slate); color: var(--obsidian); }

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  background: var(--warm);
  color: var(--obsidian);
  font-weight: 700;
  font-family: var(--font-body);
  padding: 10px 20px;
  border-radius: 0 0 6px 6px;
  transition: top .2s;
}
.skip-link:focus { top: 0; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section {
  padding: var(--section-py) 0;
  background: var(--obsidian);
}

.section--dark { background: var(--obsidian-soft); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.12;
  letter-spacing: .01em;
  color: var(--warm);
}

h1 { font-size: clamp(2.7rem, 6vw, 5rem);    font-weight: 700; letter-spacing: .005em; }
h2 { font-size: clamp(2rem,  4vw, 3.1rem);   font-weight: 600; margin-bottom: 18px; }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.7rem); font-weight: 600; margin-bottom: 12px; }
h4 { font-size: .9rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }

p { margin-bottom: 1.1em; }
p:last-child { margin-bottom: 0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--slate);
}

#about .eyebrow,
#services .eyebrow {
  font-size: 1rem;
  color: var(--warm);
}

.accent { color: var(--slate-bright); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 14px 26px;
  border-radius: 3px;
  border: 1.5px solid transparent;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease);
  cursor: pointer;
  white-space: nowrap;
}

.btn .arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* Botão principal — warm white bg, texto obsidian (CTA da paleta) */
.btn--primary {
  background: var(--warm);
  color: var(--obsidian);
  border-color: var(--warm);
}
.btn--primary:hover {
  background: var(--slate-bright);
  border-color: var(--slate-bright);
  color: var(--obsidian);
}

/* Botão sobre fundo escuro (hero) — warm white sólido */
.btn--on-dark {
  background: var(--warm);
  color: var(--obsidian);
  border-color: var(--warm);
}
.btn--on-dark:hover {
  background: #fff;
  border-color: #fff;
}

/* Ghost sobre fundo escuro — borda slate, texto warm */
.btn--on-dark-ghost {
  background: transparent;
  color: var(--warm);
  border-color: var(--line-slate);
}
.btn--on-dark-ghost:hover {
  background: rgba(232,228,220,.06);
  border-color: var(--slate);
}

/* ============================================================
   HEADER — obsidian, detalhes warm/slate
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(13,13,13,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease), background .3s var(--ease);
}

.header.scrolled {
  background: rgba(13,13,13,.96);
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 76px;
}

/* Brand lockup */
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

/* Marca EL (transparente) — exibida ao lado do nome */
.brand-logo {
  height: 46px;
  width: auto;
  object-fit: contain;
}
.brand-logo--sm     { height: 38px; }   /* drawer mobile */
.brand-logo--footer { height: 50px; }   /* rodapé */

.brand-name {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name-primary {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--warm);
  letter-spacing: .14em;
  text-transform: uppercase;
}

.brand-name-sub {
  font-family: var(--font-body);
  font-size: .6rem;
  font-weight: 600;
  color: var(--slate);
  letter-spacing: .22em;
  text-transform: uppercase;
}

/* Desktop nav links */
.nav-links {
  display: none;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav-links a {
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: .03em;
  color: var(--warm-dim);
  padding: 8px 14px;
  border-radius: 3px;
  transition: color .2s, background .2s;
}
.nav-links a:hover {
  color: var(--warm);
  background: rgba(232,228,220,.05);
}

.nav-cta {
  display: none;
  margin-left: auto;
  padding: 10px 20px;
  font-size: .8rem;
}

/* Telefone no cabeçalho */
.nav-phone {
  display: none;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--warm);
  padding: 8px 14px;
  border: 1px solid var(--line-slate);
  border-radius: 4px;
  white-space: nowrap;
  transition: background .2s, border-color .2s, color .2s;
}
.nav-phone svg { width: 17px; height: 17px; stroke: var(--slate); flex-shrink: 0; transition: stroke .2s; }
.nav-phone:hover { background: rgba(232,228,220,.06); border-color: var(--slate); }
.nav-phone:hover svg { stroke: var(--warm); }

@media (min-width: 1080px) {
  .nav-phone { display: inline-flex; }
}

/* Hamburger */
.menu-toggle {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 3px;
  color: var(--warm);
  transition: background .2s;
}
.menu-toggle svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
}
.menu-toggle:hover { background: rgba(232,228,220,.07); }

@media (min-width: 768px) {
  .menu-toggle { display: none; }
  .nav-cta { display: inline-flex; }
}

@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { margin-left: 0; }
}

/* ============================================================
   MOBILE MENU DRAWER
   ============================================================ */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  display: flex;
  justify-content: flex-end;
  animation: mmFade .2s var(--ease);
}
.mobile-menu[hidden] { display: none; }

@keyframes mmFade { from { opacity: 0; } to { opacity: 1; } }

.mobile-menu-panel {
  width: min(340px, 90vw);
  height: 100%;
  background: var(--obsidian);
  border-left: 1px solid var(--line-slate);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  animation: mmSlide .25s var(--ease);
}
@keyframes mmSlide {
  from { transform: translateX(100%); }
  to   { transform: translateX(0); }
}

.mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--line);
}

.mobile-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 3px;
  color: var(--warm);
  transition: background .2s;
}
.mobile-menu-close svg { width: 20px; height: 20px; stroke: currentColor; }
.mobile-menu-close:hover { background: rgba(232,228,220,.08); }

.mobile-menu-panel nav {
  padding: 16px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.mobile-menu-panel nav a {
  display: block;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--warm-dim);
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  transition: color .2s;
}
.mobile-menu-panel nav a:hover { color: var(--warm); }

.mobile-menu-cta {
  margin-top: 20px !important;
  background: var(--warm) !important;
  color: var(--obsidian) !important;
  border-radius: 3px !important;
  text-align: center;
  padding: 16px !important;
  border-bottom: none !important;
  font-weight: 700 !important;
  text-transform: uppercase;
  letter-spacing: .04em;
}

.mobile-menu-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .84rem;
  color: var(--warm-mute);
}
.contact-item svg { width: 18px; height: 18px; stroke: var(--slate); flex-shrink: 0; }
.contact-item a   { color: var(--warm-dim); transition: color .2s; }
.contact-item a:hover { color: var(--warm); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100dvh - 76px);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--obsidian);
}

.hero-bg-image {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
  opacity: .78;            /* foto mais visível */
  transition: opacity 1s;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  /* mais leve que antes — mantém legibilidade do texto à esquerda,
     mas deixa a foto bem mais visível à direita */
  background: linear-gradient(
    to right,
    rgba(13,13,13,.92) 0%,
    rgba(13,13,13,.78) 24%,
    rgba(13,13,13,.42) 58%,
    rgba(13,13,13,.12) 100%
  );
}
/* leve escurecida vertical pra base */
.hero-overlay::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--obsidian) 0%, rgba(13,13,13,0) 30%);
}

.hero-grain {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 220px 220px;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding-top: clamp(24px, 3.5vh, 52px);
  padding-bottom: clamp(24px, 3.5vh, 52px);
}

.hero-content { max-width: 760px; }

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 16px;
}

.hero h1 {
  color: var(--warm);
  font-size: clamp(2.4rem, 5vw, 4.3rem);
  margin-bottom: 18px;
}

.hero h1 .accent { color: var(--slate-bright); }

.hero-sub {
  color: var(--warm-dim);
  font-size: clamp(1rem, 1.4vw, 1.12rem);
  max-width: 580px;
  margin-bottom: clamp(18px, 2.6vh, 30px);
  line-height: 1.65;
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: clamp(22px, 3vh, 40px);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: rgba(232,228,220,.03);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  backdrop-filter: blur(6px);
}

.badge-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--slate);
}

.badge-text {
  font-size: .82rem;
  color: var(--warm-mute);
  line-height: 1.4;
}
.badge-text strong {
  display: block;
  color: var(--warm);
  font-weight: 700;
  font-size: .84rem;
}

.hero-accent-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-grad);
}

/* ============================================================
   ABOUT
   ============================================================ */
#about { background: var(--obsidian-soft); }

.about-grid {
  display: grid;
  gap: 56px;
  align-items: center;
}

@media (min-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
  }
}

/* Sem moldura: a logo 3D flutua direto sobre a seção.
   O fundo é IGUAL ao da seção (#about) — isso garante a base do
   mix-blend-mode mesmo com o contexto de empilhamento criado pelo
   transform da animação reveal no .about-grid, fundindo o vídeo
   sem deixar nenhum retângulo visível. */
.about-visual {
  position: relative;
  display: grid;
  place-items: center;
  overflow: hidden;
  min-height: clamp(320px, 42vw, 480px);
  background: var(--obsidian-soft);
}

/* Vídeo 3D — object-fit cover preenche a coluna; mix-blend-mode lighten
   faz o fundo preto do vídeo "sumir" contra o obsidian da seção, deixando
   só a logo iluminada visível (efeito flutuante, sem retângulo). */
.about-media {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  mix-blend-mode: lighten;
  transform: scale(1.04) translateZ(0);
  transform-origin: center;
  backface-visibility: hidden;
  pointer-events: none;            /* não captura toques: o gesto passa pra página */
}

/* Remove o botão de play / controles que o iOS Safari sobrepõe em vídeos
   inline que ainda não iniciaram — fica só o poster (a logo) até animar. */
.about-media::-webkit-media-controls,
.about-media::-webkit-media-controls-enclosure,
.about-media::-webkit-media-controls-panel,
.about-media::-webkit-media-controls-start-playback-button,
.about-media::-webkit-media-controls-play-button,
.about-media::-webkit-media-controls-overlay-play-button {
  display: none !important;
  -webkit-appearance: none;
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  .about-media { transform: translateZ(0); }
}

/* Botão (esquerda) + selo 100% (direita) na mesma linha */
.about-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  margin-top: 36px;
}

.about-stat-card {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  background: var(--obsidian);
  border: 1px solid var(--line);
  border-left: 3px solid var(--slate);
  border-radius: 6px;
  padding: 16px 26px;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--warm);
  line-height: 1;
  flex-shrink: 0;
}
.stat-pct { font-size: 1.5rem; color: var(--slate); }

.stat-label {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--warm-mute);
  line-height: 1.4;
}

.about-content h2   { color: var(--warm); }
.about-content p    { color: var(--warm-dim); }

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  background: var(--obsidian);
  padding-top: clamp(48px, 6vw, 84px);   /* um pouco menos no topo p/ caber tudo junto */
}

.services-head {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}
.services-head h2 { color: var(--warm); }
.services-head p  { color: var(--warm-dim); max-width: 500px; }

@media (min-width: 960px) {
  .services-head {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-end;
  }
  .services-head > div { max-width: 480px; }
  .services-head p { margin-bottom: 6px; }
}

/* ============================================================
   CARROSSEL DE SERVIÇOS
   ============================================================ */
.svc-carousel {
  position: relative;
  margin-bottom: 14px;   /* descrição fica logo abaixo, junto do carrossel */
}

/* Viewport recorta os slides; o trilho desliza por translateX */
.svc-viewport {
  overflow: hidden;
  border-radius: 8px;
  padding: 6px 2px 6px;
}

.svc-track {
  display: flex;
  gap: 24px;
  transition: transform .6s cubic-bezier(.16, 1, .3, 1);
  will-change: transform;
  touch-action: pan-y;          /* permite scroll vertical da página, swipe horizontal no carrossel */
}
.svc-track.is-dragging { transition: none; cursor: grabbing; }

/* Slide — 1 por tela (mobile), 2 (tablet), 3 (desktop) */
.svc-slide {
  flex: 0 0 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 30px rgba(0,0,0,.35);
}
@media (min-width: 600px) {
  .svc-slide { flex-basis: calc((100% - 24px) / 2); }
}
@media (min-width: 960px) {
  .svc-slide { flex-basis: calc((100% - 48px) / 3); }
}

@media (prefers-reduced-motion: reduce) {
  .svc-track { transition: none; }
}

/* Foto do serviço — preenche todo o container (paisagem, mais baixo) */
.svc-photo {
  width: 100%;
  aspect-ratio: 4 / 3;
  background-size: cover;
  background-position: center;
  background-color: var(--panel-2);
}

/* Descrição de qualidade — centralizada, abaixo do carrossel.
   As 4 frases ficam empilhadas na mesma célula do grid (overlap) e
   alternam com crossfade suave; o grid se ajusta à frase mais alta. */
.svc-pitch {
  display: grid;
  max-width: 760px;
  margin: 22px auto 64px;   /* perto do carrossel acima, bem separada do banner abaixo */
  text-align: center;
}
.svc-pitch-line {
  grid-area: 1 / 1;
  margin: 0;
  color: var(--warm-dim);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
  line-height: 1.7;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  pointer-events: none;
}
.svc-pitch-line.is-active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.svc-pitch strong {
  color: var(--warm);
  font-weight: 700;
}
@media (prefers-reduced-motion: reduce) {
  .svc-pitch-line { transition: opacity .3s linear; transform: none; }
  .svc-pitch-line.is-active { transform: none; }
}

/* Setas de navegação */
.svc-nav {
  position: absolute;
  top: calc(((100% - 18px) * 0.5) - 28px); /* centraliza ~na altura da foto */
  z-index: 3;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--obsidian);
  border: 1.5px solid var(--line-slate);
  color: var(--warm);
  box-shadow: 0 6px 20px rgba(0,0,0,.5);
  transition: background .2s var(--ease), border-color .2s var(--ease),
              color .2s var(--ease), transform .2s var(--ease), opacity .2s;
}
.svc-nav svg { width: 22px; height: 22px; }
.svc-nav:hover {
  background: var(--warm);
  border-color: var(--warm);
  color: var(--obsidian);
}
.svc-nav:active { transform: scale(.92); }
.svc-prev { left: -8px; }
.svc-next { right: -8px; }
@media (min-width: 1280px) {
  .svc-prev { left: -22px; }
  .svc-next { right: -22px; }
}

/* Dots indicadores */
.svc-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}
.svc-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-slate);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background .25s var(--ease), transform .25s var(--ease), width .25s var(--ease);
}
.svc-dot:hover { background: var(--slate); }
.svc-dot[aria-selected="true"] {
  background: var(--warm);
  width: 26px;
  border-radius: 6px;
}

/* CTA Banner */
.banner {
  background: var(--panel);
  border-radius: 6px;
  border: 1px solid var(--line);
  overflow: hidden;
  position: relative;
  box-shadow: 0 8px 30px rgba(0,0,0,.35);
}
.banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-grad);
}

.banner-inner {
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
@media (min-width: 768px) {
  .banner-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.banner-inner h3 { color: var(--warm); font-size: clamp(1.3rem, 2vw, 1.75rem); margin-bottom: 8px; }
.banner-inner p  { color: var(--warm-dim); font-size: .92rem; max-width: 480px; }
.banner-cta-row  { flex-shrink: 0; }

/* ============================================================
   HIGHEST STANDARDS
   ============================================================ */
.standards { background: var(--obsidian-soft); }

.standards-banner {
  display: flex;
  align-items: center;
  gap: 22px;
  background: var(--warm);
  border-radius: 6px;
  padding: 26px 36px;
  margin-bottom: 56px;
}
.standards-banner-check {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 8px;
  background: var(--obsidian);
  color: var(--warm);
  display: grid;
  place-items: center;
}
.standards-banner-check svg { width: 26px; height: 26px; }
.standards-banner h3 {
  margin: 0;
  color: var(--obsidian);
  font-size: clamp(1.25rem, 2.2vw, 1.9rem);
  line-height: 1.15;
}

.standards-grid {
  display: grid;
  gap: 32px;
}
@media (min-width: 900px) {
  .standards-grid {
    grid-template-columns: 0.8fr 1.3fr;
    gap: 48px;
    align-items: stretch;
  }
}

.standards-intro {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--slate);
  border-radius: 6px;
  padding: clamp(32px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.standards-intro h2 { color: var(--warm); margin-bottom: 18px; }
.standards-intro p  { color: var(--warm-dim); font-size: 1rem; line-height: 1.7; }

.standards-items {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px 36px;
}
@media (min-width: 560px) {
  .standards-items { grid-template-columns: 1fr 1fr; }
}

.std-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px;
  align-items: start;
}
.std-item-icon {
  flex-shrink: 0;
  width: 54px;
  height: 54px;
  border-radius: 12px;
  background: rgba(138,138,138,.12);
  border: 1px solid var(--line-slate);
  display: grid;
  place-items: center;
  transition: background .25s var(--ease), border-color .25s var(--ease);
}
.std-item-icon svg { width: 28px; height: 28px; stroke: var(--slate); transition: stroke .25s var(--ease); }
.std-item:hover .std-item-icon {
  background: var(--warm);
  border-color: var(--warm);
}
.std-item:hover .std-item-icon svg { stroke: var(--obsidian); }

.std-item-body h3 {
  color: var(--warm);
  font-size: 1.2rem;
  margin-bottom: 8px;
}
.std-item-body p {
  color: var(--warm-dim);
  font-size: .92rem;
  line-height: 1.6;
  margin: 0;
}

/* ============================================================
   PROJECTS — galeria de fotos
   ============================================================ */
.projects { background: var(--obsidian); }

.projects-head {
  text-align: center;
  margin-bottom: 48px;
}
.projects-head h2 { color: var(--warm); margin-bottom: 14px; }
.projects-head p  { color: var(--warm-dim); max-width: 560px; margin: 0 auto; }

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
@media (min-width: 680px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
  background: var(--panel);
}

.project-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  background-size: cover;
  background-position: center;
  background-color: var(--panel-2);
  transition: transform .6s var(--ease);
}
.project-card:hover .project-photo { transform: scale(1.05); }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--obsidian); }

.contact-grid {
  display: grid;
  gap: 60px;
}
@media (min-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
  }
}

.contact-info h2    { color: var(--warm);     margin-bottom: 16px; }
.contact-info > p   { color: var(--warm-dim); margin-bottom: 36px; }

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 22px;
  margin-bottom: 32px;
}
.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.icon {
  width: 42px;
  height: 42px;
  background: var(--panel);
  border: 1px solid var(--line-slate);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.icon svg { width: 20px; height: 20px; stroke: var(--slate); }

.meta {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 5px;
}
.value {
  font-weight: 600;
  color: var(--warm);
}
.value a { color: var(--warm); transition: color .2s; }
.value a:hover { color: var(--slate-bright); }
.value--block { line-height: 1.75; }

.form-card {
  background: var(--panel);
  border-radius: 6px;
  padding: clamp(28px, 5vw, 44px);
  border: 1px solid var(--line);
  box-shadow: 0 8px 40px rgba(0,0,0,.4);
}
.form-card h3 {
  color: var(--warm);
  font-size: 1.35rem;
  margin-bottom: 26px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.form-grid {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--slate);
}
.req { color: var(--warm); }

.field input,
.field select,
.field textarea {
  background: var(--obsidian);
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  padding: 13px 16px;
  color: var(--warm);
  font-family: var(--font-body);
  font-size: .94rem;
  outline: none;
  width: 100%;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238A8A8A' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
  padding-right: 44px;
  cursor: pointer;
}
.field select option { background: var(--obsidian); color: var(--warm); }
.field input::placeholder,
.field textarea::placeholder { color: var(--warm-mute); opacity: .6; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--slate);
  box-shadow: 0 0 0 3px rgba(138,138,138,.18);
}
.field textarea { resize: vertical; min-height: 130px; }

.form-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: .95rem;
}
.form-helper {
  font-size: .78rem;
  color: var(--warm-mute);
  text-align: center;
  margin: 0;
}

.field.has-error input,
.field.has-error textarea,
.field.has-error select {
  border-color: #c0392b;
}
.field-error {
  font-size: .78rem;
  color: #e07a6e;
  font-weight: 600;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--obsidian-soft);
  border-top: 1px solid var(--line);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  padding-bottom: 64px;
}
@media (min-width: 640px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; gap: 64px; } }

.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p { font-size: .87rem; color: var(--warm-mute); line-height: 1.72; }

.footer-col h4 { color: var(--slate); font-size: .7rem; letter-spacing: .14em; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a { font-size: .9rem; color: var(--warm-mute); transition: color .2s; }
.footer-col ul a:hover { color: var(--warm); }
.footer-col > p { font-size: .9rem; color: var(--warm-mute); line-height: 1.85; }
.footer-col > p a { color: var(--warm-mute); transition: color .2s; }
.footer-col > p a:hover { color: var(--warm); }

.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: .78rem;
  color: var(--warm-mute);
}
@media (min-width: 640px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}

/* ============================================================
   FLOATING ACTION BUTTONS
   ============================================================ */
.fab {
  position: fixed;
  z-index: 50;
  border-radius: 50%;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.4);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), opacity .3s;
  text-decoration: none;
}

.fab-whatsapp {
  bottom: 24px;
  right: 24px;
  background: #25D366;
  color: #fff;
}
.fab-whatsapp:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(37,211,102,.4);
}

.fab-top {
  bottom: 92px;
  right: 24px;
  background: var(--panel);
  border: 1.5px solid var(--slate);
  color: var(--warm);
  opacity: 0;
  pointer-events: none;
  box-shadow: 0 4px 16px rgba(0,0,0,.4);
}
.fab-top.visible {
  opacity: 1;
  pointer-events: auto;
}
.fab-top:hover {
  background: var(--warm);
  border-color: var(--warm);
  color: var(--obsidian);
  transform: translateY(-3px);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .65s var(--ease), transform .65s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   LAZY LOADING
   ============================================================ */
.lazy-bg { background-color: var(--panel-2); }