@import url("https://fonts.googleapis.com/css2?family=Anton&family=Inter:wght@400;500;600;700;800&display=swap");

:root {
  color-scheme: light;
  --cyan: #00bebe;
  --cyan-deep: #009b9f;
  --cyan-soft: #d4e9e2;
  --navy: #182e68;
  --house: #1e3932;
  --house-deep: #071538;
  --ink: #111111;
  --white: #ffffff;
  --canvas: #f2f0eb;
  --ceramic: #edebe9;
  --surface: #ffffff;
  --soft-cloud: #f5f5f5;
  --hairline: #cacacb;
  --hairline-soft: #e5e5e5;
  --charcoal: #39393b;
  --ash: #4b4b4d;
  --mute: #707072;
  --stone: #9e9ea0;
  --success: #007d48;
  --button-bg: #111111;
  --button-text: #ffffff;
  --button-soft-bg: #ffffff;
  --button-soft-text: #111111;
  --shadow-card: 0 0 0.5px rgba(0, 0, 0, 0.14), 0 1px 1px rgba(0, 0, 0, 0.24);
  --shadow-nav: 0 1px 3px rgba(0, 0, 0, 0.1), 0 2px 2px rgba(0, 0, 0, 0.06), 0 0 2px rgba(0, 0, 0, 0.07);
  --shadow-float: 0 0 6px rgba(0, 0, 0, 0.24), 0 8px 12px rgba(0, 0, 0, 0.14);
  --font-display: "Anton", "Arial Narrow", Impact, sans-serif;
  --font-base: "Inter", "Helvetica Neue", Arial, sans-serif;
  --container: 1440px;
  --gutter: clamp(18px, 4.4vw, 80px);
  --radius-card: 12px;
  --radius-pill: 9999px;
}

[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #071538;
  --ceramic: #0c1d42;
  --surface: #101f45;
  --soft-cloud: #162854;
  --house: #081226;
  --house-deep: #030917;
  --ink: #f7f8fb;
  --charcoal: #d8dfeb;
  --ash: #c2cada;
  --mute: #a9b4c8;
  --stone: #8794ad;
  --hairline: rgba(255, 255, 255, 0.2);
  --hairline-soft: rgba(255, 255, 255, 0.12);
  --button-bg: #00bebe;
  --button-text: #071538;
  --button-soft-bg: rgba(255, 255, 255, 0.1);
  --button-soft-text: #ffffff;
  --shadow-card: 0 0 0.5px rgba(255, 255, 255, 0.14), 0 1px 1px rgba(0, 0, 0, 0.4);
  --shadow-nav: 0 1px 3px rgba(0, 0, 0, 0.45), 0 2px 2px rgba(0, 0, 0, 0.32), 0 0 2px rgba(255, 255, 255, 0.08);
  --shadow-float: 0 0 6px rgba(0, 190, 190, 0.34), 0 8px 12px rgba(0, 0, 0, 0.38);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--canvas);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.5;
  letter-spacing: -0.01em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color 220ms ease, color 220ms ease;
}

body.nav-open { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button, a { cursor: pointer; }

::selection { color: var(--white); background: var(--cyan-deep); }

:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  z-index: 999;
  top: 12px;
  left: 12px;
  transform: translateY(-140%);
  padding: 10px 18px;
  color: var(--button-text);
  background: var(--button-bg);
  border-radius: var(--radius-pill);
  font-weight: 700;
  transition: transform 180ms ease;
}

.skip-link:focus { transform: translateY(0); }

.container {
  width: min(100% - calc(var(--gutter) * 2), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  z-index: 50;
  top: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--hairline-soft);
  box-shadow: var(--shadow-nav);
}

.nav-shell {
  display: grid;
  grid-template-columns: 220px 1fr auto;
  min-height: 58px;
  align-items: center;
  gap: 24px;
  padding: 0 var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: fit-content;
}

.brand img { width: min(168px, 48vw); height: auto; }
.logo-white { display: none; }
[data-theme="dark"] .logo-color { display: none; }
[data-theme="dark"] .logo-white { display: block; }
.site-footer .logo-color { display: none; }
.site-footer .logo-white { display: block; }

.primary-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.primary-nav a {
  position: relative;
  padding: 22px 0 20px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
}

.primary-nav a::after {
  position: absolute;
  right: 0;
  bottom: 14px;
  left: 0;
  height: 2px;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  background: var(--ink);
  transition: transform 160ms ease;
}

.primary-nav a:hover::after,
.primary-nav a.active::after { transform: scaleX(1); }

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  overflow: hidden;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-pill);
  background: var(--button-soft-bg);
}

.lang-switch button {
  min-width: 36px;
  min-height: 48px;
  padding: 0 0.48rem;
  color: var(--mute);
  border: 0;
  background: transparent;
  font-size: 0.68rem;
  font-weight: 800;
  line-height: 1;
  transition: color 160ms ease, background 160ms ease;
}

.lang-switch button[data-lang="pt"] { min-width: 50px; }

.lang-switch button.active,
.lang-switch button:hover {
  color: var(--house-deep);
  background: var(--cyan);
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition: opacity 140ms ease, transform 140ms ease, background 140ms ease, border-color 140ms ease;
}

.btn:active { transform: scale(0.95); opacity: 0.82; }
.btn-primary { color: var(--button-text); background: var(--button-bg); box-shadow: var(--shadow-card); }
.btn-secondary, .btn-quiet { color: var(--button-soft-text); background: var(--button-soft-bg); border-color: var(--hairline-soft); }
.btn-secondary:hover, .btn-quiet:hover { background: var(--hairline-soft); }

.theme-toggle {
  display: inline-grid;
  width: 48px;
  height: 48px;
  min-width: 48px;
  place-items: center;
  padding: 0;
  color: var(--ink);
  border: 1px solid var(--hairline-soft);
  border-radius: 50%;
  background: var(--button-soft-bg);
  transition: transform 140ms ease, background 180ms ease, border-color 180ms ease;
}

.theme-toggle:active { transform: scale(0.95); }

.theme-icon {
  position: relative;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  box-shadow: inset -6px -4px 0 0 currentColor;
  transform: rotate(-18deg);
  transition: box-shadow 220ms ease, background 220ms ease, transform 220ms ease;
}

[data-theme="dark"] .theme-icon {
  width: 14px;
  height: 14px;
  background: var(--cyan);
  box-shadow:
    0 -8px 0 -5px var(--cyan),
    0 8px 0 -5px var(--cyan),
    8px 0 0 -5px var(--cyan),
    -8px 0 0 -5px var(--cyan),
    6px 6px 0 -5px var(--cyan),
    -6px -6px 0 -5px var(--cyan),
    6px -6px 0 -5px var(--cyan),
    -6px 6px 0 -5px var(--cyan);
  transform: rotate(180deg);
}

.theme-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  color: var(--ink);
  border: 1px solid var(--hairline-soft);
  border-radius: 50%;
  background: var(--button-soft-bg);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  display: block;
  width: 20px;
  height: 2px;
  content: "";
  background: currentColor;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle span::before { transform: translateY(-7px); }
.nav-toggle span::after { transform: translateY(5px); }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: translateY(1px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: translateY(-1px) rotate(-45deg); }

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1 {
  margin-bottom: 22px;
  font-size: clamp(4.4rem, 13vw, 12.4rem);
  line-height: 0.86;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(3.15rem, 8vw, 8rem);
  line-height: 0.9;
}

h3 {
  margin-bottom: 8px;
  font-size: clamp(2rem, 4vw, 4.5rem);
  line-height: 0.92;
}

p { color: var(--mute); }

.lead {
  max-width: 68ch;
  color: var(--charcoal);
  font-size: 18px;
  line-height: 1.55;
}

.eyebrow,
.kicker,
.mono-label {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 12px;
  color: var(--ink);
}

.eyebrow::before {
  width: 10px;
  height: 10px;
  content: "";
  background: var(--cyan);
  border-radius: 50%;
}

.eyebrow.on-dark { color: var(--white); }
.mono-label { color: var(--stone); }

.section {
  padding: clamp(48px, 7vw, 88px) 0;
  background: var(--canvas);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(280px, 0.45fr);
  gap: 48px;
  align-items: end;
  margin-bottom: 32px;
}

.section-head.center {
  display: block;
  max-width: 980px;
  margin-right: auto;
  margin-bottom: 32px;
  margin-left: auto;
  text-align: center;
}

.section-head.center .eyebrow { justify-content: center; }

.campaign-tile.hero {
  position: relative;
  display: block;
  min-height: calc(100svh - 64px);
  overflow: hidden;
  padding: clamp(80px, 10vw, 150px) 0 0;
  color: var(--white);
  background: var(--house-deep);
}

.campaign-tile.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background: url("../photos/territorio.jpg") center / cover no-repeat;
  opacity: 0.78;
}

.campaign-tile.hero::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(0,0,0,0.18), rgba(0,0,0,0.72));
}

.hero-grid,
.hero-rings,
.hero-system { display: none; }

.hero-layout {
  position: relative;
  z-index: 2;
  display: flex;
  min-height: clamp(520px, 68svh, 760px);
  align-items: flex-end;
  width: min(100% - calc(var(--gutter) * 2), var(--container));
  padding-bottom: clamp(44px, 7vw, 86px);
}

.hero-copy { max-width: 1180px; }
.hero h1 {
  max-width: 13.5ch;
  color: var(--white);
  font-size: clamp(3.4rem, min(8.6vw, 14svh), 9.4rem);
  line-height: 1.06;
  text-wrap: balance;
  word-spacing: -0.08em;
}

.hero-lead {
  max-width: 760px;
  margin-bottom: 24px;
  color: rgba(255,255,255,0.86);
  font-size: clamp(1.05rem, 1.8vw, 1.35rem);
}

.kicker {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: rgba(255,255,255,0.86);
}

.kicker span {
  padding: 4px 12px;
  color: #111111;
  background: var(--white);
  border-radius: var(--radius-pill);
}

.hero-actions,
.contact-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero .btn-primary { color: #111111; background: var(--white); }
.hero .btn-secondary { color: var(--white); background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.5); }

.hero-status {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(100% - calc(var(--gutter) * 2), var(--container));
  margin: 0 auto;
  background: var(--surface);
  border-radius: 12px 12px 0 0;
  box-shadow: var(--shadow-card);
}

.hero-status div {
  min-height: 112px;
  padding: 24px;
  border-right: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

.hero-status div:last-child { border-right: 0; }
.hero-status strong { display: block; margin-bottom: 8px; color: var(--cyan); font-weight: 800; }
.hero-status span { color: var(--ink); font-size: 18px; font-weight: 700; }

.ticker {
  overflow: hidden;
  color: var(--ink);
  background: var(--ceramic);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

.ticker-track { display: flex; width: max-content; animation: ticker 28s linear infinite; }
.ticker span { padding: 14px 24px; color: var(--ink); font-size: 14px; font-weight: 700; }
.ticker span::after { content: " /"; color: var(--stone); }

@keyframes ticker { from { transform: translateX(0); } to { transform: translateX(-50%); } }

.intro-section { background: var(--canvas); }

.intro-grid {
  display: grid;
  grid-template-columns: 0.7fr 1.1fr 0.8fr;
  gap: 16px;
}

.intro-mark,
.intro-copy,
.intro-card {
  min-height: 310px;
  padding: 30px;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.intro-mark { display: grid; place-items: center; }
.intro-mark img { max-width: 310px; }
.intro-copy h2 { font-size: clamp(3rem, 6vw, 6rem); }
.intro-copy p:last-child, .intro-card p { margin-bottom: 0; font-size: 18px; }
.promo-card.intro-card { color: var(--white); background: var(--house); }
.promo-card.intro-card strong { display: block; margin: 12px 0; color: var(--white); font-size: 28px; line-height: 1.1; }
.promo-card.intro-card p { color: rgba(255,255,255,0.72); }

.solutions { background: var(--canvas); }

.solution-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
}

.solution-card {
  position: relative;
  display: block;
  min-height: 620px;
  overflow: hidden;
  background: var(--soft-cloud);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.solution-card.featured { grid-row: span 2; min-height: 860px; }

.solution-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-card::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, rgba(0,0,0,0.04), rgba(0,0,0,0.78));
}

.solution-copy {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 2;
  padding: 30px;
  color: var(--white);
}

.solution-copy .eyebrow { color: var(--white); }
.solution-copy h3 { max-width: 12ch; color: var(--white); }
.solution-card:not(.featured) .solution-copy h3 { font-size: clamp(2.6rem, 5vw, 5.8rem); }
.solution-copy p:last-child { max-width: 58ch; margin-bottom: 0; color: rgba(255,255,255,0.78); font-size: 16px; }

.card-index {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--white);
  font-size: 14px;
  font-weight: 800;
}

.lithium-band {
  padding: clamp(48px, 7vw, 88px) 0;
  color: var(--white);
  background: var(--house);
}

.lithium-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(0, 1fr);
  gap: 16px;
  align-items: stretch;
}

.lithium-visual {
  position: relative;
  overflow: hidden;
  min-height: 660px;
  background: var(--soft-cloud);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.lithium-visual img { width: 100%; height: 100%; object-fit: cover; }
.waterline { display: none; }

.lithium-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(30px, 5vw, 72px);
  background: var(--house);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.lithium-copy h2 { color: var(--white); }
.lithium-copy > p:not(.eyebrow) { max-width: 68ch; color: rgba(255,255,255,0.74); font-size: 18px; }
.lithium-points { display: grid; gap: 0; margin-top: 30px; border-top: 1px solid rgba(255,255,255,0.24); }
.lithium-points div { display: grid; grid-template-columns: 54px 1fr; gap: 2px 16px; padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,0.24); }
.lithium-points span { grid-row: span 2; color: var(--cyan); font-weight: 800; }
.lithium-points strong { color: var(--white); font-size: 18px; }
.lithium-points p { margin-bottom: 0; color: rgba(255,255,255,0.68); }

.catalog { background: var(--canvas); }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.catalog-card {
  min-height: 260px;
  padding: 24px;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.catalog-card span {
  display: inline-flex;
  margin-bottom: 24px;
  padding: 4px 12px;
  color: var(--button-soft-text);
  background: var(--button-soft-bg);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 800;
}

.catalog-card h3 {
  font-family: var(--font-base);
  font-size: 22px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0;
  text-transform: none;
}

.catalog-card p { margin-bottom: 0; color: var(--mute); }

.method { background: var(--ceramic); }

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.method-copy {
  position: sticky;
  top: 124px;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.method-steps { display: grid; gap: 12px; }

.step-card {
  padding: 30px;
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-card);
}

.step-card span { display: inline-flex; margin-bottom: 18px; color: var(--cyan); font-weight: 800; }
.step-card h3 { font-family: var(--font-base); font-size: 32px; font-weight: 700; line-height: 1.1; letter-spacing: 0; text-transform: none; }
.step-card p { max-width: 68ch; margin-bottom: 0; color: var(--mute); }

.brand-band {
  padding: clamp(48px, 7vw, 88px) 0;
  color: var(--ink);
  background: var(--canvas);
  border-top: 1px solid var(--hairline-soft);
  border-bottom: 1px solid var(--hairline-soft);
}

.brand-band-bg { display: none; }

.brand-band-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  gap: 16px;
  align-items: stretch;
}

.brand-band-copy {
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.brand-band h2 { color: var(--ink); }
.brand-band-copy p:not(.eyebrow) { max-width: 68ch; color: var(--charcoal); font-size: 18px; }
.brand-band .eyebrow.on-dark { color: var(--ink); }

.brand-spec { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.brand-spec div { display: grid; gap: 8px; min-height: 172px; padding: 18px; background: var(--surface); border: 1px solid var(--hairline-soft); border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.brand-spec span { width: 44px; height: 44px; background: var(--swatch); border-radius: 50%; }
.brand-spec strong { align-self: end; color: var(--ink); font-size: 14px; }
.brand-spec small { color: var(--mute); font-weight: 700; }

.contact-section { background: var(--canvas); }

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(360px, 0.62fr);
  gap: 16px;
  align-items: stretch;
}

.contact-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.form-panel {
  justify-content: flex-start;
}

.campaign-contact .contact-copy h2 {
  max-width: 8.2ch;
  line-height: 1.02;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field.full,
.form-actions.full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--charcoal);
  font-size: 14px;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  padding: 12px 14px;
  color: var(--ink);
  background: var(--button-soft-bg);
  border: 1px solid var(--hairline-soft);
  border-radius: 8px;
  outline: 0;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.field textarea {
  min-height: 140px;
  resize: vertical;
}

.field select {
  color-scheme: light;
}

.field select:required:invalid {
  color: var(--stone);
}

.field select option {
  color: #111111;
  background: #ffffff;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--cyan) 18%, transparent);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 6px;
}

.form-actions p {
  margin: 0;
  font-size: 14px;
}

.form-actions a {
  color: var(--cyan-deep);
  font-weight: 800;
}

.contact-card {
  overflow: hidden;
  padding: 30px;
  color: var(--white);
  border-radius: var(--radius-card);
  background: var(--house);
  box-shadow: var(--shadow-card);
}

.contact-card img { width: min(220px, 70%); margin-bottom: 32px; }
.contact-lines { display: grid; gap: 0; border-top: 1px solid rgba(255,255,255,0.22); }
.contact-lines a, .contact-lines div { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid rgba(255,255,255,0.22); }
.contact-lines span { color: var(--stone); font-size: 12px; font-weight: 800; }
.contact-lines strong { color: var(--white); font-size: 18px; }

.response-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.response-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(300px, 0.7fr);
  gap: 16px;
  align-items: stretch;
}

.response-panel,
.response-card {
  position: relative;
  overflow: hidden;
  padding: 30px;
  background: var(--surface);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

.response-panel::after,
.response-card::after {
  position: absolute;
  right: -48px;
  bottom: -48px;
  width: 160px;
  height: 160px;
  content: "";
  background: radial-gradient(circle, color-mix(in srgb, var(--cyan) 26%, transparent), transparent 70%);
  border-radius: 50%;
}

.response-panel > *,
.response-card > * {
  position: relative;
  z-index: 1;
}

.response-panel h1 {
  margin-bottom: 14px;
  font-size: clamp(3.3rem, 9vw, 8rem);
  line-height: 0.92;
}

.response-panel .lead {
  max-width: 22ch;
}

.response-mark {
  display: inline-grid;
  width: 72px;
  height: 72px;
  place-items: center;
  margin-bottom: 18px;
  border-radius: 18px;
}

.response-mark span {
  font-family: var(--font-base);
  font-size: 22px;
  font-weight: 800;
}

.response-mark-success {
  color: #0a6a5b;
  background: rgba(0, 190, 190, 0.12);
  border: 1px solid rgba(0, 190, 190, 0.26);
}

.response-mark-error {
  color: #8a3025;
  background: rgba(190, 65, 43, 0.12);
  border: 1px solid rgba(190, 65, 43, 0.24);
}

.response-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.response-kicker {
  margin: 0 0 10px;
  color: var(--cyan-deep);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.response-card h2 {
  margin-bottom: 12px;
  font-size: clamp(2rem, 4vw, 4.2rem);
  line-height: 0.96;
}

.response-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.response-list li {
  position: relative;
  padding-left: 22px;
  color: var(--ash);
}

.response-list li::before {
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--cyan);
  border-radius: 50%;
}

.response-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
}

.response-note a {
  color: inherit;
  text-decoration: underline;
  text-underline-offset: 0.16em;
}

.response-note-success {
  color: #0a6a5b;
  background: rgba(0, 190, 190, 0.12);
}

.response-note-error {
  color: #8a3025;
  background: rgba(190, 65, 43, 0.12);
}

.site-footer {
  padding: 48px 0 24px;
  color: var(--white);
  background: var(--house);
  border-top: 1px solid var(--hairline-soft);
}

.footer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) 0.55fr 0.7fr;
  gap: 34px;
}

.footer-logo { width: min(220px, 72vw); margin-bottom: 18px; }
.site-footer h3 { margin-bottom: 16px; color: var(--white); font-family: var(--font-base); font-size: 16px; font-weight: 800; text-transform: none; }
.site-footer p, .site-footer a, .footer-bottom { color: rgba(255, 255, 255, 0.7); }
.site-footer a { display: block; width: fit-content; margin-bottom: 10px; font-weight: 600; }
.site-footer a:hover { color: var(--cyan); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 42px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  font-size: 12px;
  font-weight: 700;
}

.floating-whatsapp {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: inline-grid;
  width: 62px;
  height: 62px;
  place-items: center;
  color: #fff;
  background: #128c3f;
  border-radius: var(--radius-pill);
  box-shadow: 0 18px 42px rgba(18, 140, 63, 0.34);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.floating-whatsapp:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 52px rgba(18, 140, 63, 0.42);
}

.wa-mark {
  display: inline-grid;
  width: 32px;
  height: 32px;
  place-items: center;
  background: #fff;
  border-radius: 50%;
}

.wa-mark::before {
  width: 20px;
  height: 20px;
  content: "";
  background: #128c3f;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16.04 3.2A12.75 12.75 0 0 0 5.1 22.5L3.6 28.8l6.46-1.7a12.72 12.72 0 0 0 5.98 1.52h.01A12.72 12.72 0 1 0 16.04 3.2Zm0 22.98h-.01a10.3 10.3 0 0 1-5.24-1.44l-.38-.23-3.83 1.01 1.02-3.73-.25-.39a10.3 10.3 0 1 1 8.69 4.78Zm5.65-7.71c-.31-.16-1.84-.91-2.12-1.01-.29-.11-.5-.16-.71.16-.21.31-.81 1-.99 1.2-.18.21-.36.23-.67.08-.31-.16-1.31-.48-2.49-1.54a9.35 9.35 0 0 1-1.72-2.14c-.18-.31-.02-.48.14-.64.14-.14.31-.36.47-.54.16-.18.21-.31.31-.52.1-.21.05-.39-.03-.54-.08-.16-.71-1.71-.97-2.34-.26-.62-.52-.53-.71-.54h-.6c-.21 0-.54.08-.83.39-.29.31-1.09 1.07-1.09 2.6s1.12 3.01 1.28 3.22c.16.21 2.2 3.36 5.33 4.72.75.32 1.33.51 1.78.66.75.24 1.43.2 1.97.12.6-.09 1.84-.75 2.1-1.48.26-.73.26-1.35.18-1.48-.08-.13-.29-.21-.6-.36Z'/%3E%3C/svg%3E") center / contain no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'%3E%3Cpath d='M16.04 3.2A12.75 12.75 0 0 0 5.1 22.5L3.6 28.8l6.46-1.7a12.72 12.72 0 0 0 5.98 1.52h.01A12.72 12.72 0 1 0 16.04 3.2Zm0 22.98h-.01a10.3 10.3 0 0 1-5.24-1.44l-.38-.23-3.83 1.01 1.02-3.73-.25-.39a10.3 10.3 0 1 1 8.69 4.78Zm5.65-7.71c-.31-.16-1.84-.91-2.12-1.01-.29-.11-.5-.16-.71.16-.21.31-.81 1-.99 1.2-.18.21-.36.23-.67.08-.31-.16-1.31-.48-2.49-1.54a9.35 9.35 0 0 1-1.72-2.14c-.18-.31-.02-.48.14-.64.14-.14.31-.36.47-.54.16-.18.21-.31.31-.52.1-.21.05-.39-.03-.54-.08-.16-.71-1.71-.97-2.34-.26-.62-.52-.53-.71-.54h-.6c-.21 0-.54.08-.83.39-.29.31-1.09 1.07-1.09 2.6s1.12 3.01 1.28 3.22c.16.21 2.2 3.36 5.33 4.72.75.32 1.33.51 1.78.66.75.24 1.43.2 1.97.12.6-.09 1.84-.75 2.1-1.48.26-.73.26-1.35.18-1.48-.08-.13-.29-.21-.6-.36Z'/%3E%3C/svg%3E") center / contain no-repeat;
}

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 520ms ease, transform 520ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1100px) {
  .nav-shell { grid-template-columns: 1fr auto; }
  .lang-switch { order: -1; }
  .primary-nav, .nav-actions .btn-quiet { display: none; }
  .primary-nav.is-open {
    position: fixed;
    top: 64px;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 60;
    display: grid;
    align-content: start;
    justify-content: stretch;
    gap: 0;
    padding: 24px var(--gutter);
    background: var(--surface);
  }
  .primary-nav.is-open a { padding: 24px 0; border-bottom: 1px solid var(--hairline-soft); font-size: 24px; }
  .nav-toggle { display: grid; }
  .intro-grid, .lithium-layout, .method-layout, .contact-layout, .brand-band-layout { grid-template-columns: 1fr; }
  .response-shell { grid-template-columns: 1fr; }
  .catalog-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-copy { position: static; }
}

@media (max-width: 820px) {
  .section-head, .solution-grid, .footer-layout { grid-template-columns: 1fr; }
  .solution-card, .solution-card.featured { min-height: 560px; grid-row: auto; }
  .hero-status { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-status div:nth-child(2) { border-right: 0; }
  .hero-status div:nth-child(-n + 2) { border-bottom: 1px solid var(--hairline-soft); }
  .brand-spec { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 620px) {
  :root { --gutter: 14px; }
  .nav-actions .btn-primary { display: none; }
  .theme-toggle { width: 44px; height: 44px; min-width: 44px; }
  .brand img { width: min(148px, 38vw); }
  .nav-shell { gap: 8px; }
  .lang-switch button { min-width: 27px; min-height: 38px; padding: 0 0.24rem; font-size: 0.58rem; }
  .lang-switch button[data-lang="pt"] { min-width: 42px; }
  .response-screen { min-height: auto; }
  .response-panel .lead { max-width: none; }
  .campaign-tile.hero { min-height: 78svh; }
  .hero-status, .catalog-grid { grid-template-columns: 1fr; }
  .hero-status div, .hero-status div:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--hairline-soft); }
  .intro-mark, .intro-copy, .intro-card, .method-copy, .contact-copy, .contact-card { padding: 22px; }
  .solution-card, .solution-card.featured { min-height: 500px; }
  .lithium-visual { min-height: 430px; }
  .lithium-points div { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .floating-whatsapp { right: 14px; bottom: 14px; width: 56px; height: 56px; }
}

@media (max-width: 480px) {
  .brand img { width: min(118px, 35vw); }
  .nav-actions { gap: 4px; }
  .theme-toggle, .nav-toggle { width: 36px; height: 36px; min-width: 36px; }
  .lang-switch button { min-width: 23px; min-height: 34px; padding: 0 0.14rem; font-size: 0.55rem; }
  .lang-switch button[data-lang="pt"] { min-width: 38px; }
}