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

:root {
  --cyan:   #29abe2;
  --yellow: #f5c518;
  --white:  #ffffff;
  --dark:   #0d0d0d;
  --card-bg: rgba(10, 10, 10, 0.88);
  --card-border: rgba(255,255,255,0.18);
  --font: 'Segoe UI', Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--dark);
  color: var(--white);
  overflow-x: hidden;
}

/* ============================================================
   SEÇÃO 1 — HERO / CAPA
============================================================ */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;

  /* Industrial warehouse background — dark gradient fallback
     Replace the gradient below with a real photo:
     background-image: url('imagens/bg-hero.jpg');          */
  background-image:
    linear-gradient(135deg, #1a2a35 0%, #0d1a22 40%, #111417 70%, #0a0f12 100%);
  background-size: cover;
  background-position: center;
}

/* subtle grid texture overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 59px, rgba(255,255,255,.03) 60px),
    repeating-linear-gradient(90deg,  transparent, transparent 59px, rgba(255,255,255,.03) 60px);
  pointer-events: none;
}

/* dark vignette */
.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,.55) 100%);
  pointer-events: none;
}

/* ---------- central card ---------- */
.hero__card {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0;

  background: var(--card-bg);
  border: 1.5px solid var(--card-border);
  border-radius: 4px;
  padding: clamp(2rem, 5vw, 3.5rem) clamp(2rem, 6vw, 5rem);
  max-width: 680px;
  width: 90%;
  box-shadow: 0 8px 48px rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
}

/* logo inside card (hidden if logo is only in the bottom corner) */
.hero__logo-mark {
  display: none; /* enable if you want the logo centred inside the card */
  margin-bottom: 1.2rem;
}
.hero__logo-mark img { width: 60px; }

/* main title */
.hero__title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: .04em;
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: .9rem;
}
.hero__title--hs {
  color: var(--cyan);
}

/* subtitle */
.hero__subtitle {
  font-size: clamp(.95rem, 2vw, 1.18rem);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--white);
  line-height: 1.4;
  margin-bottom: 1.1rem;
}

/* cyan divider */
.hero__divider {
  width: 80%;
  height: 2px;
  background: var(--cyan);
  margin: 0 auto 1.2rem;
  opacity: .85;
}

/* description */
.hero__description {
  font-size: clamp(.88rem, 1.6vw, 1rem);
  font-weight: 400;
  color: rgba(255,255,255,.82);
  line-height: 1.65;
  margin-bottom: 1.3rem;
}

/* confidential tag */
.hero__tag {
  font-size: clamp(.75rem, 1.3vw, .85rem);
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.hero__tag--confidential { color: var(--yellow); }
.hero__tag--sep          { color: var(--cyan); font-weight: 400; }

/* ---------- bottom-right HS logo ---------- */
.hero__bottom-logo {
  position: absolute;
  bottom: 1.5rem;
  right: 2rem;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: .55rem;
}
.hero__bottom-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: brightness(1.1);
}
.hero__bottom-logo span {
  font-size: .72rem;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--white);
  letter-spacing: .04em;
}

/* ============================================================
   SEÇÃO 2 — O DESAFIO CRÍTICO
============================================================ */
.challenge {
  position: relative;
  background-color: #161616;
  /* faint blueprint grid */
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.025) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.025) 50px);
  padding: clamp(3rem, 6vw, 5rem) clamp(1.5rem, 5vw, 5rem);
}

/* top-right logo */
.challenge__top-logo {
  position: absolute;
  top: 1.4rem;
  right: 2rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}
.challenge__top-logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  filter: brightness(1.1);
}
.challenge__top-logo span {
  font-size: .7rem;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
  color: var(--white);
  letter-spacing: .04em;
}

/* inner wrapper */
.challenge__inner {
  max-width: 960px;
  margin: 0 auto;
  padding-top: 1.5rem;
}

/* title */
.challenge__title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: 1rem;
}

/* horizontal rule */
.challenge__divider {
  width: 100%;
  height: 1.5px;
  background: rgba(255,255,255,.15);
  margin: 1.1rem 0;
}
.challenge__divider--light {
  background: rgba(255,255,255,.1);
}

/* intro text */
.challenge__intro {
  font-size: clamp(.9rem, 1.6vw, 1rem);
  color: rgba(255,255,255,.82);
  line-height: 1.7;
}
.challenge__intro strong { color: var(--white); }

/* 3-column cards */
.challenge__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  padding: .5rem 0;
}

.challenge__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: .9rem;
}

/* icon stack */
.challenge__icon {
  position: relative;
  color: var(--yellow);
  line-height: 1;
}
.challenge__icon .fa-stack { width: 2.5em; }

/* small badge icons */
.challenge__icon-badge {
  position: absolute;
  bottom: -4px;
  right: -6px;
  font-size: .65em;
  color: var(--yellow);
}
.challenge__icon-ban {
  position: absolute;
  bottom: -4px;
  right: -6px;
  font-size: .7em;
  color: var(--yellow);
}
.challenge__icon-gavel {
  position: absolute;
  bottom: -4px;
  right: -8px;
  font-size: .6em;
  color: var(--yellow);
}

/* card title */
.challenge__card-title {
  font-size: clamp(.85rem, 1.5vw, 1rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--white);
}

/* card text */
.challenge__card-text {
  font-size: clamp(.8rem, 1.3vw, .9rem);
  color: rgba(255,255,255,.72);
  line-height: 1.65;
}

/* footer note */
.challenge__footer {
  font-size: clamp(.88rem, 1.5vw, 1rem);
  color: rgba(255,255,255,.82);
  line-height: 1.7;
  text-align: center;
}

/* ============================================================
   SEÇÃO 3 — A LACUNA DO MERCADO
============================================================ */
.gap {
  font-family: var(--font);
  /* tom distinto: verde-escuro industrial, diferente do azul-escuro da s1 e do cinza da s2 */
  background-color: #111a14;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}

/* header */
.gap__header {
  max-width: 960px;
  margin: 0 auto clamp(1.5rem, 3vw, 2.5rem);
}
.gap__title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: .9rem;
}
.gap__title-divider {
  width: 100%;
  height: 1.5px;
  background: rgba(255,255,255,.18);
  margin-top: 0;
}

/* ---- body: split photos + overlaid table ---- */
.gap__body {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 420px;
  padding: 0 0 2.5rem;
  overflow: hidden;
}

/* full-cover split photos */
.gap__bg-split {
  position: absolute;
  inset: 0;
  display: flex;
}
.gap__bg-left,
.gap__bg-right {
  flex: 1;
  background-size: cover;
  background-position: center;
  filter: grayscale(100%) brightness(.65);
}
.gap__bg-left {
  background-image: url('https://images.unsplash.com/photo-1585771724684-38269d6639fd?w=900&q=80&auto=format&fit=crop');
  background-position: center left;
}
.gap__bg-right {
  background-image: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=900&q=80&auto=format&fit=crop');
  background-position: center right;
}

/* centered table overlay */
.gap__table-wrap {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 820px;
  box-shadow: 0 6px 40px rgba(0,0,0,.45);
}

.gap__table {
  width: 100%;
  display: flex;
  flex-direction: column;
  background: #fff;
}

/* rows */
.gap__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid #ddd;
}
.gap__row--last { border-bottom: none; }

/* head row */
.gap__row--head .gap__col {
  padding: 1rem 1.5rem;
  font-size: clamp(.82rem, 1.4vw, .97rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
  line-height: 1.35;
  text-align: center;
}
.gap__row--head .gap__col--general {
  background: #e8e8e8;
  color: #111;
  border-right: 1px solid #ccc;
}
.gap__row--head .gap__col--hs {
  background: #1a1a1a;
  color: var(--white);
}
.gap__col-hs-label { color: var(--yellow); }

/* data rows */
.gap__col {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  padding: .85rem 1.5rem;
  font-size: clamp(.78rem, 1.25vw, .9rem);
  line-height: 1.65;
  color: #222;
}
.gap__col--general {
  border-right: 1px solid #e0e0e0;
  background: #fafafa;
}
.gap__col--hs {
  background: #fff;
}
.gap__bullet {
  flex-shrink: 0;
  font-size: 1.1em;
  line-height: 1.6;
  color: #999;
}
.gap__col--hs .gap__bullet { color: var(--yellow); }

/* bottom-right logo */
.gap__logo {
  position: absolute;
  bottom: 1rem;
  right: 1.2rem;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: .45rem;
}
.gap__logo img {
  width: 34px;
  height: 34px;
  object-fit: contain;
  filter: brightness(0) invert(1);
}
.gap__logo span {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: .04em;
}

/* footer */
.gap__footer {
  max-width: 960px;
  margin: clamp(1.5rem, 3vw, 2.5rem) auto 0;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(255,255,255,.1);
  text-align: center;
}
.gap__footer p {
  font-size: clamp(.9rem, 1.6vw, 1rem);
  color: rgba(255,255,255,.82);
  line-height: 1.7;
}

/* ============================================================
   SHARED UTILITIES (sections 4-7)
============================================================ */
.sec-title {
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.15;
  color: var(--white);
  margin-bottom: .9rem;
}
.sec-title--dark { color: #111; }

.sec-divider {
  width: 100%;
  height: 1.5px;
  background: rgba(255,255,255,.18);
  margin-bottom: 1.2rem;
}
.sec-divider--dark   { background: rgba(0,0,0,.2); }
.sec-divider--yellow { background: var(--yellow); height: 3px; }

.hs-cyan { color: var(--cyan); font-weight: 700; }

/* ============================================================
   SEÇÃO 4 — A INTERSECÇÃO ÚNICA
============================================================ */
.intersect {
  background-color: #e8e8e8;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(0,0,0,.025) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(0,0,0,.025) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}

.intersect__wrap { max-width: 1040px; margin: 0 auto; }

/* top-right logo */
.intersect__top-logo {
  position: absolute;
  top: 1.4rem;
  right: clamp(1.5rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.intersect__top-logo img { width: 34px; height: 34px; object-fit: contain; }
.intersect__top-logo span {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: #111;
  letter-spacing: .04em;
}

/* layout: venn + aside */
.intersect__layout {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-top: 1.5rem;
}

/* venn svg */
.intersect__venn {
  flex: 0 0 min(480px, 62%);
  max-width: 480px;
}
.intersect__venn svg { width: 100%; height: auto; }

/* side text */
.intersect__aside {
  flex: 1;
}
.intersect__aside p {
  font-size: clamp(.9rem, 1.5vw, 1.05rem);
  color: #222;
  line-height: 1.75;
}
.intersect__aside .hs-cyan { color: var(--cyan); }

/* ============================================================
   SEÇÃO 5 — ENGENHARIA QUÍMICA
============================================================ */
.chemistry {
  background: #fff;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}
.chemistry__wrap { max-width: 1040px; margin: 0 auto; }

.chemistry__intro {
  font-size: clamp(.92rem, 1.6vw, 1.05rem);
  color: #222;
  line-height: 1.7;
  margin-bottom: 2rem;
}
.chemistry__intro strong { color: #111; }

/* pH three-column layout */
.chemistry__ph {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.2rem;
  align-items: start;
  margin-bottom: 1.8rem;
}

/* left / right columns */
.chemistry__col { display: flex; flex-direction: column; gap: .8rem; }
.chemistry__ph-label {
  font-size: clamp(.78rem, 1.3vw, .88rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: #111;
}
.chemistry__ph-label--right { text-align: right; }

.chemistry__ph-img {
  width: 100%;
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
  filter: grayscale(30%);
  border-radius: 2px;
}
.chemistry__ph-img--acid {
  background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?w=500&q=80&auto=format&fit=crop');
}
.chemistry__ph-img--alkaline {
  background-image: url('https://images.unsplash.com/photo-1578662996442-48f60103fc96?w=500&q=80&auto=format&fit=crop');
}

/* warning box */
.chemistry__warn {
  display: flex;
  align-items: flex-start;
  gap: .7rem;
  background: #f8f4e0;
  border: 1.5px solid #e8c200;
  padding: .75rem;
}
.chemistry__warn-icon { color: var(--yellow); font-size: 1.8rem; flex-shrink: 0; margin-top: .1rem; }
.chemistry__warn strong { display: block; font-size: .85rem; text-transform: uppercase; margin-bottom: .3rem; color: #111; }
.chemistry__warn p { font-size: .82rem; color: #333; line-height: 1.5; margin: 0; }

/* info box (right) */
.chemistry__info {
  background: #f2f2f2;
  border-left: 3px solid #111;
  padding: .7rem .9rem;
}
.chemistry__info p { font-size: .85rem; color: #222; line-height: 1.6; margin: 0 0 .3rem; }
.chemistry__info p:last-child { margin: 0; }

/* center column */
.chemistry__center {
  width: clamp(140px, 18vw, 200px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  padding-top: 1.8rem;
}
.chemistry__arrow-label {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.4;
  color: #555;
  letter-spacing: .05em;
}
.chemistry__arrow {
  font-size: 1.6rem;
  color: #888;
}

/* pH gradient bar */
.chemistry__ph-bar {
  width: 100%;
  height: 22px;
  border-radius: 2px;
  background: linear-gradient(to right,
    #e84a2f 0%,
    #f5a623 20%,
    #f5e642 40%,
    #7ed321 55%,
    #4a90d9 75%,
    #5b2d8e 100%
  );
  box-shadow: 0 1px 6px rgba(0,0,0,.18);
}

/* solution box */
.chemistry__solution {
  background: #f0f0f0;
  border-left: 3px solid #111;
  padding: .65rem .9rem;
  width: 100%;
}
.chemistry__solution strong { display: block; font-size: .83rem; text-transform: uppercase; margin-bottom: .3rem; }
.chemistry__solution p { font-size: .8rem; color: #333; line-height: 1.5; margin: 0; }

/* bottom note */
.chemistry__note {
  display: flex;
  align-items: flex-start;
  gap: .8rem;
  background: #f8f8f8;
  border: 1px solid #e0e0e0;
  padding: .9rem 1.1rem;
  margin-bottom: 1.5rem;
}
.chemistry__note-bar { width: 4px; flex-shrink: 0; align-self: stretch; background: #555; border-radius: 2px; }
.chemistry__note p { font-size: .85rem; color: #333; line-height: 1.65; margin: 0; }

/* bottom-right logo (light bg) */
.chemistry__bottom-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  justify-content: flex-end;
}
.chemistry__bottom-logo img { width: 32px; height: 32px; object-fit: contain; }
.chemistry__bottom-logo span {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: #111;
  letter-spacing: .04em;
}

/* ============================================================
   SEÇÃO 6 — PROTOCOLOS DE MATERIAIS
============================================================ */
.protocols {
  background-color: #ebebeb;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(0,0,0,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(0,0,0,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.protocols__wrap { max-width: 1040px; margin: 0 auto; }

.protocols__sub {
  font-size: clamp(.92rem, 1.5vw, 1.05rem);
  color: #222;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.protocols__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(3, auto);
  gap: .5rem 2.5rem;
  align-items: center;
}

/* photos */
.protocols__photo {
  width: 100%;
  aspect-ratio: 16/7;
  background-size: cover;
  background-position: center;
  border-radius: 2px;
}
.protocols__photo--1 {
  background-image: url('https://images.unsplash.com/photo-1590725121839-892b458a74fe?w=700&q=80&auto=format&fit=crop');
}
.protocols__photo--2 {
  background-image: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=700&q=80&auto=format&fit=crop');
  filter: grayscale(25%);
}
.protocols__photo--3 {
  background-image: url('https://images.unsplash.com/photo-1486325212027-8081e485255e?w=700&q=80&auto=format&fit=crop');
}

/* feature items */
.protocols__item {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
}
.protocols__item-bar {
  flex-shrink: 0;
  width: 4px;
  align-self: stretch;
  background: var(--yellow);
  border-radius: 2px;
}
.protocols__item-title {
  font-size: clamp(.85rem, 1.4vw, 1rem);
  font-weight: 900;
  text-transform: uppercase;
  color: #111;
  margin-bottom: .4rem;
  letter-spacing: .03em;
}
.protocols__item-text {
  font-size: clamp(.8rem, 1.2vw, .9rem);
  color: #333;
  line-height: 1.65;
  margin: 0;
}

/* ============================================================
   SEÇÃO 7 — SEGURANÇA COMO DNA
============================================================ */
.safety {
  background-color: #111;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}
.safety__wrap { max-width: 960px; margin: 0 auto; }

.safety__lead {
  font-size: clamp(.92rem, 1.6vw, 1.05rem);
  color: rgba(255,255,255,.82);
  line-height: 1.7;
  margin-bottom: .5rem;
}

/* NR cards */
.safety__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  margin: 2rem 0;
}
.safety__card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

/* yellow icon box */
.safety__card-icon {
  flex-shrink: 0;
  width: 72px;
  background: var(--yellow);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: .7rem .5rem .5rem;
  gap: .4rem;
  min-height: 80px;
}
.safety__card-icon i { font-size: 1.6rem; color: #111; }
.safety__card-nr {
  font-size: .8rem;
  font-weight: 900;
  color: #111;
  letter-spacing: .04em;
  text-align: center;
  border-top: 1.5px solid rgba(0,0,0,.2);
  padding-top: .3rem;
  width: 100%;
  text-align: center;
}

.safety__card-body h3 {
  font-size: clamp(.8rem, 1.3vw, .92rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: .4rem;
  letter-spacing: .03em;
  line-height: 1.3;
}
.safety__card-body p {
  font-size: clamp(.78rem, 1.2vw, .88rem);
  color: rgba(255,255,255,.72);
  line-height: 1.65;
  margin: 0;
}

/* benefit box */
.safety__benefit {
  border-left: 4px solid var(--yellow);
  padding: .9rem 1.2rem;
  background: rgba(255,255,255,.05);
  margin-bottom: 2rem;
}
.safety__benefit-title {
  font-size: clamp(.9rem, 1.5vw, 1.05rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: .35rem;
  letter-spacing: .05em;
}
.safety__benefit-text {
  font-size: clamp(.85rem, 1.3vw, .95rem);
  color: rgba(255,255,255,.8);
  line-height: 1.65;
  margin: 0;
}

/* bottom-left logo (dark bg) */
.safety__bottom-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.safety__bottom-logo img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  filter: brightness(1.1);
}
.safety__bottom-logo span {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: .04em;
}

/* ============================================================
   SEÇÃO 8 — VERTICALIZAÇÃO ESTRATÉGICA
============================================================ */
.vertical {
  background-color: #f4f4f0;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(0,0,0,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(0,0,0,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.vertical__wrap { max-width: 1040px; margin: 0 auto; }

.vertical__layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2.5rem;
  align-items: start;
  margin-top: 1.5rem;
}

.vertical__intro {
  font-size: clamp(.88rem, 1.5vw, 1rem);
  color: #222;
  line-height: 1.7;
  margin-bottom: 1.4rem;
}
.vertical__intro strong { color: #111; }

.vertical__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.vertical__list li {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  padding-left: 1.2rem;
  position: relative;
}
.vertical__list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: #333;
  font-size: 1.1em;
}
.vertical__list strong {
  font-size: clamp(.85rem, 1.4vw, .97rem);
  text-transform: uppercase;
  letter-spacing: .03em;
  color: #111;
}
.vertical__list span {
  font-size: clamp(.8rem, 1.25vw, .9rem);
  color: #444;
  line-height: 1.6;
}

.vertical__img-side {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
}

.vertical__scaffold-img {
  width: clamp(180px, 24vw, 300px);
  aspect-ratio: 3/4;
  background-image: url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=500&q=80&auto=format&fit=crop');
  background-size: cover;
  background-position: center;
  filter: grayscale(20%) contrast(1.1);
  border-radius: 2px;
}

.vertical__badge {
  display: flex;
  align-items: center;
  gap: .55rem;
  background: #1a1a1a;
  border: 2.5px solid var(--yellow);
  border-radius: 50%;
  width: 90px;
  height: 90px;
  flex-direction: column;
  justify-content: center;
  color: var(--white);
  text-align: center;
  padding: .5rem;
}
.vertical__badge i { font-size: 1.4rem; color: var(--yellow); }
.vertical__badge span { font-size: .55rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; line-height: 1.3; }
.vertical__badge strong { color: var(--yellow); }

/* ============================================================
   SEÇÃO 9 — MECANIZAÇÃO
============================================================ */
.mech {
  background: #fff;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}
.mech__wrap { max-width: 1040px; margin: 0 auto; }

.mech__intro {
  font-size: clamp(.9rem, 1.5vw, 1.02rem);
  color: #222;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.mech__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.mech__card {
  border: 1.5px solid #ddd;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.mech__card-img {
  width: 100%;
  aspect-ratio: 4/3;
  background-size: cover;
  background-position: center;
}
.mech__card-img--lavadora {
  background-image: url('https://images.unsplash.com/photo-1558618666-fcd25c85cd64?w=500&q=80&auto=format&fit=crop');
  filter: grayscale(15%);
}
.mech__card-img--hepa {
  background-image: url('https://images.unsplash.com/photo-1581578731548-c64695cc6952?w=500&q=80&auto=format&fit=crop');
  filter: grayscale(15%);
}
.mech__card-img--robo {
  background-image: url('https://images.unsplash.com/photo-1485827404703-89b55fcc595e?w=500&q=80&auto=format&fit=crop');
  filter: grayscale(15%);
}

.mech__card-body {
  padding: .85rem 1rem;
  background: #f8f8f8;
  flex: 1;
}
.mech__card-body h3 {
  font-size: clamp(.78rem, 1.3vw, .9rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: #111;
  margin-bottom: .4rem;
}
.mech__card-body p {
  font-size: clamp(.75rem, 1.2vw, .85rem);
  color: #444;
  line-height: 1.6;
  margin: 0;
}

.mech__metric {
  text-align: right;
  font-size: clamp(.82rem, 1.3vw, .92rem);
  color: #222;
  line-height: 1.55;
  margin-bottom: 1.2rem;
}
.mech__metric strong {
  font-size: clamp(.88rem, 1.4vw, 1rem);
  text-transform: uppercase;
  letter-spacing: .06em;
  display: block;
  color: #111;
}

.mech__bottom-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
}
.mech__bottom-logo img { width: 34px; height: 34px; object-fit: contain; }
.mech__bottom-logo span {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: #111;
  letter-spacing: .04em;
}

/* ============================================================
   SEÇÃO 10 — METODOLOGIA TOP-DOWN
============================================================ */
.topdown {
  background-color: #1a1a1a;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.topdown__wrap { max-width: 960px; margin: 0 auto; }

.topdown__layout {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: start;
  margin-top: 1.5rem;
}

/* steps */
.topdown__steps { display: flex; flex-direction: column; gap: 1.2rem; }

.topdown__step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.topdown__step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--yellow);
  color: #111;
  font-weight: 900;
  font-size: .92rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.topdown__step h3 {
  font-size: clamp(.82rem, 1.4vw, .95rem);
  font-weight: 900;
  text-transform: uppercase;
  color: var(--white);
  margin: 0 0 .25rem;
  letter-spacing: .04em;
}
.topdown__step p {
  font-size: clamp(.78rem, 1.2vw, .88rem);
  color: rgba(255,255,255,.7);
  line-height: 1.6;
  margin: 0;
}

.topdown__note {
  font-size: clamp(.8rem, 1.25vw, .88rem);
  color: rgba(255,255,255,.55);
  line-height: 1.65;
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1rem;
  margin-top: .5rem;
}

/* building visual */
.topdown__visual { flex-shrink: 0; width: clamp(160px, 22vw, 240px); }
.topdown__building svg { width: 100%; height: auto; }

/* ============================================================
   SEÇÃO 11 — KPIS DE PERFORMANCE
============================================================ */
.kpis {
  background-color: #0d1a22;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}
.kpis__wrap { max-width: 1040px; margin: 0 auto; }

/* bottom-left logo */
.kpis__bottom-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1.8rem;
}
.kpis__bottom-logo img { width: 38px; height: 38px; object-fit: contain; filter: brightness(1.1); }
.kpis__bottom-logo span {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: .04em;
}

.kpis__intro {
  font-size: clamp(.9rem, 1.5vw, 1.02rem);
  color: rgba(255,255,255,.78);
  line-height: 1.7;
  margin-bottom: 2.2rem;
}

/* gauges row */
.kpis__row {
  display: grid;
  grid-template-columns: 1fr 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  margin-bottom: 2rem;
}

/* individual gauge */
.kpis__gauge { text-align: center; }
.kpis__gauge-svg { width: 100%; max-width: 110px; height: auto; display: block; margin: 0 auto .6rem; }
.kpis__gauge-label {
  font-size: clamp(.72rem, 1.2vw, .85rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--white);
  margin-bottom: .25rem;
}
.kpis__gauge-sub {
  font-size: clamp(.68rem, 1.1vw, .78rem);
  color: rgba(255,255,255,.6);
  line-height: 1.5;
  margin: 0;
}

/* OEE central box */
.kpis__oee {
  background: rgba(255,255,255,.06);
  border: 1.5px solid rgba(255,255,255,.2);
  padding: 1.2rem 1.4rem;
  text-align: center;
  max-width: 260px;
}
.kpis__oee-formula {
  font-size: clamp(.78rem, 1.3vw, .9rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.5;
  text-transform: uppercase;
  margin-bottom: .4rem;
}
.kpis__oee-formula span { color: var(--cyan); }
.kpis__oee-sub {
  font-size: clamp(.68rem, 1.1vw, .78rem);
  color: rgba(255,255,255,.55);
  line-height: 1.5;
  margin: 0;
}

.kpis__footer-note {
  text-align: right;
  font-size: clamp(.82rem, 1.3vw, .92rem);
  color: rgba(255,255,255,.6);
  line-height: 1.6;
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1rem;
}

/* ============================================================
   SEÇÃO 12 — SUSTENTABILIDADE E ESG
============================================================ */
.esg {
  background-color: #1a2418;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.esg__wrap { max-width: 960px; margin: 0 auto; }
.esg__title { color: var(--cyan); }
.esg__intro {
  font-size: clamp(.9rem, 1.5vw, 1rem);
  color: rgba(255,255,255,.75);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.esg__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.1);
  margin-bottom: 2rem;
}
.esg__card {
  background: rgba(255,255,255,.04);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: .9rem;
}
.esg__icon {
  font-size: 2.2rem;
  color: rgba(255,255,255,.55);
  line-height: 1;
}
.esg__card h3 {
  font-size: clamp(.82rem, 1.4vw, .95rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--white);
  margin: 0;
}
.esg__card p {
  font-size: clamp(.78rem, 1.2vw, .88rem);
  color: rgba(255,255,255,.68);
  line-height: 1.65;
  margin: 0;
}

.esg__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.1rem;
}
.esg__footer-logo { display: flex; align-items: center; gap: .5rem; }
.esg__footer-logo img { width: 34px; height: 34px; object-fit: contain; filter: brightness(1.1); }
.esg__footer-logo span {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: .04em;
}
.esg__footer-note {
  font-size: clamp(.78rem, 1.3vw, .88rem);
  color: rgba(255,255,255,.6);
  line-height: 1.6;
  text-align: right;
  margin: 0;
  max-width: 360px;
}

/* ============================================================
   SEÇÃO 13 — CREDIBILIDADE E PROVA SOCIAL
============================================================ */
.social {
  background-color: #111;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
  position: relative;
}
.social__wrap { max-width: 960px; margin: 0 auto; }

.social__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: .8rem;
}
.social__sub {
  font-size: clamp(.9rem, 1.5vw, 1.05rem);
  color: rgba(255,255,255,.72);
  line-height: 1.6;
  margin: .4rem 0 0;
}

/* badge */
.social__badge {
  flex-shrink: 0;
  width: 90px;
  height: 90px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,.35);
  background: rgba(255,255,255,.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: .2rem;
  padding: .5rem;
}
.social__badge i { font-size: 1.4rem; color: rgba(255,255,255,.5); }
.social__badge span {
  font-size: .5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  line-height: 1.4;
  color: rgba(255,255,255,.7);
}
.social__badge strong { color: var(--white); }

/* quotes grid */
.social__quotes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  margin: 1.8rem 0 2rem;
}
.social__quote {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .8rem;
}
.social__quote-icon {
  font-size: 2.2rem;
  color: rgba(255,255,255,.15);
  line-height: 1;
}
.social__quote-icon--right { align-self: flex-end; }
.social__quote-text {
  font-size: clamp(.88rem, 1.5vw, 1.02rem);
  color: var(--white);
  line-height: 1.7;
  margin: 0;
}
.social__quote-author {
  font-size: clamp(.75rem, 1.2vw, .85rem);
  color: rgba(255,255,255,.6);
  text-transform: uppercase;
  letter-spacing: .05em;
  line-height: 1.5;
  margin: 0;
}
.social__quote-author strong { color: rgba(255,255,255,.85); }

.social__bottom-logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  justify-content: flex-end;
}
.social__bottom-logo img { width: 34px; height: 34px; object-fit: contain; filter: brightness(1.1); }
.social__bottom-logo span {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.3;
  color: var(--white);
  letter-spacing: .04em;
}

/* ============================================================
   SEÇÃO 14 — RESUMO EXECUTIVO
============================================================ */
.summary {
  background-color: #161616;
  background-image:
    repeating-linear-gradient(0deg,   transparent, transparent 49px, rgba(255,255,255,.022) 50px),
    repeating-linear-gradient(90deg,  transparent, transparent 49px, rgba(255,255,255,.022) 50px);
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.summary__wrap { max-width: 960px; margin: 0 auto; }

.summary__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin: 1.8rem 0;
}
.summary__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: .7rem;
}
.summary__num {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 900;
  color: rgba(255,255,255,.12);
  line-height: 1;
  letter-spacing: -.02em;
}
.summary__icon {
  font-size: 1.8rem;
  color: var(--cyan);
  margin-top: -.5rem;
}
.summary__card h3 {
  font-size: clamp(.85rem, 1.4vw, 1rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--white);
  margin: 0;
}
.summary__card p {
  font-size: clamp(.8rem, 1.3vw, .92rem);
  color: rgba(255,255,255,.68);
  line-height: 1.65;
  margin: 0;
}

.summary__tagline {
  text-align: center;
  font-size: clamp(.88rem, 1.5vw, 1rem);
  color: rgba(255,255,255,.55);
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 1.2rem;
  margin: 0;
}

/* ============================================================
   SEÇÃO 15 — CONTATO / PRÓXIMOS PASSOS
============================================================ */
.contact {
  background: #f4f4f4;
  padding: clamp(2.5rem, 5vw, 4rem) clamp(1.5rem, 5vw, 4rem);
}
.contact__wrap {
  max-width: 760px;
  margin: 0 auto;
}

.contact__intro {
  font-size: clamp(.9rem, 1.5vw, 1.05rem);
  color: #333;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 1.3rem;
  margin-bottom: 2.2rem;
}
.contact__item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact__item-icon {
  font-size: 1.3rem;
  color: var(--cyan);
  flex-shrink: 0;
  margin-top: .15rem;
  width: 1.5rem;
  text-align: center;
}
.contact__item strong {
  display: block;
  font-size: clamp(.78rem, 1.3vw, .88rem);
  text-transform: uppercase;
  letter-spacing: .07em;
  color: #111;
  margin-bottom: .2rem;
}
.contact__item a,
.contact__item span {
  font-size: clamp(.85rem, 1.4vw, .98rem);
  color: #333;
  text-decoration: none;
  line-height: 1.5;
}
.contact__item a:hover { color: var(--cyan); }

.contact__closing {
  font-size: clamp(.92rem, 1.5vw, 1.05rem);
  color: #222;
  line-height: 1.7;
  border-top: 2px solid #111;
  padding-top: 1.2rem;
  margin: 0;
}
.contact__closing strong { color: #111; }

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 900px) {
  /* sec 4 */
  .intersect__layout { flex-direction: column; }
  .intersect__venn { flex: none; max-width: 420px; width: 100%; }

  /* sec 6 */
  .protocols__layout { grid-template-columns: 1fr; gap: 1rem .5rem; }
  .protocols__item { align-items: center; }

  /* sec 7 */
  .safety__cards { grid-template-columns: 1fr; gap: 1.4rem; }

  /* sec 8 */
  .vertical__layout { grid-template-columns: 1fr; }
  .vertical__img-side { flex-direction: row; justify-content: flex-start; }

  /* sec 9 */
  .mech__cards { grid-template-columns: 1fr; }

  /* sec 10 */
  .topdown__layout { grid-template-columns: 1fr; }
  .topdown__visual { display: none; }

  /* sec 11 */
  .kpis__row { grid-template-columns: 1fr 1fr; }
  .kpis__oee { max-width: 100%; grid-column: 1 / -1; }

  /* sec 12 */
  .esg__cards { grid-template-columns: 1fr; }
  .esg__footer { flex-direction: column; align-items: flex-start; }
  .esg__footer-note { text-align: left; }

  /* sec 13 */
  .social__quotes { grid-template-columns: 1fr; gap: 2rem; }
  .social__header { flex-direction: column; }

  /* sec 14 */
  .summary__cards { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .challenge__cards {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .challenge__top-logo { top: .8rem; right: 1rem; }

  /* section 3 */
  .gap__bg-split { display: none; }
  .gap__body { background: rgba(255,255,255,.06); padding: 1rem; }
  .gap__table-wrap { box-shadow: 0 2px 16px rgba(0,0,0,.4); }
  .gap__row { grid-template-columns: 1fr; }
  .gap__row--head .gap__col--general { border-right: none; border-bottom: 1px solid #555; }
  .gap__col--general { border-right: none; border-bottom: 1px solid #eee; }
  .gap__logo { display: none; }

  /* section 5 */
  .chemistry__ph { grid-template-columns: 1fr; }
  .chemistry__center { width: 100%; flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .chemistry__ph-bar { width: 100%; height: 18px; }
  .chemistry__ph-label--right { text-align: left; }
}

@media (max-width: 480px) {
  .hero__card { padding: 2rem 1.4rem; }
  .hero__bottom-logo { bottom: 1rem; right: 1rem; }
  .intersect__top-logo { position: static; margin-bottom: 1rem; }
}