/* Reset e base */
:root {
  --color-primary: #5d9f4c;
  --color-primary-dark: #417d36;
  --color-secondary: #0c5278;
  --color-dark: #04253a;
  --color-darker: #021a2b;
  --color-light: #f7f8f8;
  --color-white: #ffffff;
  --color-muted: #63717a;
  --color-border: #c9d3d9;
  --shadow-soft: 0 14px 40px rgba(3, 29, 46, .14);
  --radius-lg: 22px;
  --radius-md: 10px;
  --container: 1180px;
  --header-height: 78px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--color-dark);
  background: var(--color-white);
  font-family: "Trebuchet MS", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
body, button, a { font-family: "Trebuchet MS", Arial, sans-serif; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3, strong { letter-spacing: -.025em; }
section { scroll-margin-top: var(--header-height); }

.container { width: min(calc(100% - 48px), var(--container)); margin-inline: auto; }
.section-light { background: var(--color-light); }
.section-dark { color: var(--color-white); background: var(--color-dark); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 9999; padding: 10px 15px; color: #fff; background: #000; }
.skip-link:focus { top: 16px; }

/* Tipografia e botões */
.eyebrow {
  display: block;
  margin-bottom: 9px;
  color: var(--color-primary);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .16em;
  line-height: 1.2;
  text-transform: uppercase;
}
.section-heading h2 {
  margin-bottom: 0;
  max-width: 420px;
  font-size: clamp(2rem, 3.2vw, 3rem);
  line-height: 1.12;
  text-transform: uppercase;
}
.section-heading.compact h2 { max-width: 560px; color: #fff; font-size: clamp(1.5rem, 2vw, 2rem); }

.btn {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 0;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .025em;
  line-height: 1;
  text-transform: uppercase;
  transition: transform .25s ease, background-color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { color: #fff; background: var(--color-primary); box-shadow: 0 8px 25px rgba(80, 146, 67, .28); }
.btn-primary:hover { background: var(--color-primary-dark); box-shadow: 0 12px 30px rgba(80, 146, 67, .36); }
.btn-outline { color: #fff; border-color: rgba(255,255,255,.65); background: rgba(4, 37, 58, .45); }
.btn-outline:hover, .btn-outline-light:hover { border-color: var(--color-primary); background: var(--color-primary); }
.btn-outline-light { color: #fff; border-color: rgba(255,255,255,.7); background: transparent; }

/* Header */
.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 100;
  min-height: var(--header-height);
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: rgba(3, 30, 48, .93);
}
.header-inner { display: flex; min-height: var(--header-height); align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.brand-logo { display: block; width: auto; height: 66px; object-fit: contain; }
.site-footer .brand-logo { height: 92px; }
.brand-mark {
  display: flex;
  width: 58px;
  height: 52px;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.82);
  border-top: 5px solid currentColor;
  border-bottom: 5px solid currentColor;
  font-size: 1.65rem;
  font-weight: 900;
  letter-spacing: -.16em;
  line-height: 1;
  transform: skewY(-6deg);
}
.brand-copy { display: grid; line-height: 1.05; text-transform: uppercase; }
.brand-copy strong { font-size: .76rem; letter-spacing: .17em; }
.brand-copy small { margin-top: 5px; font-size: .54rem; letter-spacing: .28em; }
.main-nav { display: flex; margin-left: auto; align-items: center; gap: clamp(15px, 1.8vw, 26px); }
.main-nav a { position: relative; font-size: .7rem; font-weight: 700; text-transform: uppercase; }
.main-nav a::after { position: absolute; right: 0; bottom: -8px; left: 0; height: 2px; content: ""; background: var(--color-primary); transform: scaleX(0); transition: transform .2s ease; }
.main-nav a:hover::after { transform: scaleX(1); }
.header-cta { flex: 0 0 auto; }
.menu-toggle { display: none; width: 44px; height: 44px; padding: 0; color: #fff; border: 1px solid rgba(255,255,255,.3); background: transparent; font-size: 1.15rem; }

/* Hero */
.hero {
  position: relative;
  min-height: 620px;
  padding-top: var(--header-height);
  color: #fff;
  background-color: var(--color-darker);
  background-image: url("../img/hero-arquitetura-igor-v2.webp");
  background-repeat: no-repeat;
  background-position: -104px center;
  background-size: cover;
  isolation: isolate;
}
.hero-overlay {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(2,22,36,.34) 0%, rgba(2,29,47,.76) 32%, rgba(2,24,40,.09) 70%, rgba(1,18,31,.12) 100%), linear-gradient(0deg, rgba(2,24,40,.3), transparent 48%);
}
.hero-content { position: relative; min-height: calc(620px - var(--header-height)); }
.hero-copy { width: min(47%, 560px); margin-left: 22%; padding-top: 82px; padding-bottom: 72px; }
.hero-copy h1 { margin-bottom: 20px; font-size: clamp(2.7rem, 4.7vw, 4.55rem); line-height: 1.02; text-transform: uppercase; text-wrap: balance; }
.hero-copy h1 em { color: var(--color-primary); font-style: normal; }
.hero-copy p { max-width: 530px; margin-bottom: 26px; color: rgba(255,255,255,.9); font-size: 1.02rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
.certification-card {
  position: absolute;
  right: 3%; bottom: 34px;
  display: grid;
  width: 275px;
  grid-template-columns: 70px 1fr;
  align-items: center;
  gap: 12px;
  padding: 20px;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 14px;
  background: rgba(3, 36, 58, .92);
  box-shadow: var(--shadow-soft);
}
.certification-card strong { display: block; font-size: 1.55rem; line-height: 1; }
.certification-card > div:nth-child(2) span { font-size: .88rem; font-weight: 700; text-transform: uppercase; }
.certification-card p { grid-column: 1 / -1; margin: 4px 0 0; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.3); font-size: .72rem; font-weight: 700; letter-spacing: .07em; text-align: center; text-transform: uppercase; }
.mini-seal {
  display: grid;
  width: 66px; aspect-ratio: 1; place-items: center;
  border: 5px double rgba(255,255,255,.75); border-radius: 50%;
  color: #fff; background: rgba(255,255,255,.08); box-shadow: inset 0 0 0 3px rgba(255,255,255,.18);
}
.mini-seal span { font-size: 1.02rem; font-weight: 900; letter-spacing: .03em; }

/* Estatísticas */
.stats-band { color: #fff; background: linear-gradient(90deg, #0d547c, #073a5b 55%, #0a5479); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { display: flex; min-height: 100px; align-items: center; justify-content: center; gap: 16px; padding: 20px; border-right: 1px solid rgba(255,255,255,.24); }
.stat:last-child { border-right: 0; }
.stat i { width: 48px; color: #fff; font-size: 2.2rem; text-align: center; }
.stat strong, .stat span { display: block; }
.stat strong { font-size: 1.55rem; line-height: 1; }
.stat span { max-width: 140px; margin-top: 4px; font-size: .66rem; font-weight: 800; letter-spacing: .04em; line-height: 1.25; text-transform: uppercase; }

/* Destaques */
.feature-showcase { padding: 18px 0; }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.feature-card {
  position: relative;
  min-height: 286px;
  padding: 48px 35px 26px;
  overflow: hidden;
  color: #fff;
  border-radius: var(--radius-lg);
  background-position: center;
  background-size: cover;
  text-align: center;
  isolation: isolate;
}
.feature-card::before { position: absolute; inset: 0; z-index: -1; content: ""; background: linear-gradient(0deg, rgba(1,18,31,.88), rgba(1,18,31,.34)); }
.feature-projects { background-image: url("../img/arquitetura-verde.webp"); }
.feature-leed { background: #4f9657; }
.feature-leed::before { background: radial-gradient(circle at 50% 20%, rgba(255,255,255,.12), transparent 38%), linear-gradient(135deg, rgba(255,255,255,.05), rgba(0,46,20,.28)); }
.feature-education { background-image: url("../img/masterclass.webp"); }
.feature-icon { display: grid; width: 64px; height: 64px; margin: -28px auto 18px; place-items: center; color: var(--color-primary-dark); border-radius: 50%; background: #fff; font-size: 1.75rem; box-shadow: 0 6px 18px rgba(0,0,0,.2); }
.feature-card h2 { margin-bottom: 9px; font-size: 1.55rem; line-height: 1.05; text-transform: uppercase; }
.feature-card p { max-width: 330px; margin: 0 auto 16px; color: rgba(255,255,255,.9); font-size: .86rem; }
.feature-card > a { font-size: .68rem; font-weight: 900; text-transform: uppercase; }
.feature-card > a i { margin-left: 8px; }

/* Sobre */
.about { padding: 58px 0; }
.about-grid { display: grid; grid-template-columns: 1.05fr 1.45fr 1.1fr; align-items: center; gap: 56px; }
.about-copy p { margin-bottom: 12px; color: #465964; font-size: .94rem; }
.credentials { display: grid; margin: 0; padding: 0; gap: 14px; list-style: none; }
.credentials li { display: flex; align-items: center; gap: 16px; font-size: .83rem; font-weight: 700; }
.credentials i { width: 29px; color: var(--color-primary); font-size: 1.45rem; text-align: center; }

/* Serviços */
.services { padding: 44px 0 14px; background: radial-gradient(circle at 80% -10%, #10577a, transparent 42%), var(--color-dark); }
.services-grid { display: grid; margin-top: 18px; grid-template-columns: repeat(6, 1fr); border-top: 1px solid rgba(255,255,255,.28); border-left: 1px solid rgba(255,255,255,.28); }
.service-card { min-height: 225px; padding: 25px 17px; border-right: 1px solid rgba(255,255,255,.28); border-bottom: 1px solid rgba(255,255,255,.28); text-align: center; transition: background-color .25s ease, transform .25s ease; }
.service-card:hover { z-index: 2; background: rgba(92,159,76,.14); transform: translateY(-4px); }
.service-card > i { margin-bottom: 16px; color: rgba(255,255,255,.9); font-size: 2.25rem; }
.service-card h3 { min-height: 54px; margin-bottom: 8px; font-size: .8rem; line-height: 1.25; text-transform: uppercase; }
.service-card p { margin: 0; color: rgba(255,255,255,.72); font-size: .7rem; line-height: 1.45; }

/* LEED e projetos */
.leed-projects { display: grid; grid-template-columns: 1fr 1fr; background: #fff; }
.leed-panel { position: relative; display: flex; min-height: 475px; align-items: center; overflow: hidden; color: #fff; background: url("../img/arquitetura-verde.webp") center / cover no-repeat; isolation: isolate; }
.leed-panel-overlay { position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(6,55,31,.93), rgba(7,55,32,.72)); }
.leed-content { width: min(590px, 73%); padding: 55px 0 50px max(32px, calc((100vw - var(--container)) / 2)); }
.leed-content .eyebrow { color: #a9db95; }
.leed-content h2 { margin-bottom: 0; font-size: clamp(2rem, 3.2vw, 3.35rem); line-height: 1; text-transform: uppercase; }
.leed-content h3 { margin: 8px 0 10px; font-size: 1.05rem; text-transform: uppercase; }
.leed-content > p { max-width: 480px; font-size: .84rem; }
.leed-benefits { display: grid; margin: 22px 0; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.leed-benefits span { display: grid; place-items: start center; gap: 7px; font-size: .56rem; font-weight: 800; line-height: 1.2; text-align: center; text-transform: uppercase; }
.leed-benefits i { font-size: 1.25rem; }
.large-seal { position: absolute; top: 45px; right: 30px; display: grid; width: 148px; aspect-ratio: 1; place-items: center; padding: 18px; border: 9px double rgba(255,255,255,.55); border-radius: 50%; color: #fff; background: rgba(3,35,30,.35); text-align: center; transform: rotate(-7deg); }
.large-seal span { font-size: 2rem; font-weight: 900; line-height: 1; }
.large-seal small { font-size: .38rem; font-weight: 800; line-height: 1.2; text-transform: uppercase; }
.projects-panel { padding: 36px max(24px, calc((100vw - var(--container)) / 2)) 28px 22px; }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; }
.project-card { overflow: hidden; background: #f1f3f4; transition: box-shadow .25s ease, transform .25s ease; }
.project-card:hover { z-index: 2; box-shadow: var(--shadow-soft); transform: translateY(-4px); }
.project-image { height: 190px; background-image: url("../img/projetos-strip.webp"); background-repeat: no-repeat; background-size: 300% 100%; }
.project-one { background-position: 0 center; }
.project-two { background-position: 50% center; }
.project-three { background-position: 100% center; }
.project-body { padding: 16px; }
.project-body h3 { min-height: 47px; margin-bottom: 8px; color: #064267; font-size: .92rem; line-height: 1.1; text-transform: uppercase; }
.project-body p { min-height: 65px; margin-bottom: 10px; color: #435762; font-size: .72rem; line-height: 1.35; }
.project-body a { font-size: .6rem; font-weight: 900; text-transform: uppercase; }
.project-body a i { margin-left: 7px; }

/* FAQ e método */
.objections { padding: 28px 0 24px; }
.faq-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.faq-item { align-self: start; border: 1px solid #63809a; background: #fff; }
.faq-item h3 { margin: 0; }
.faq-item button { display: flex; width: 100%; min-height: 48px; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 13px; border: 0; background: transparent; font-size: .73rem; font-weight: 500; text-align: left; cursor: pointer; }
.faq-item button i { color: #345d76; font-size: .65rem; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .25s ease; }
.faq-answer p { min-height: 0; margin: 0; padding: 0 13px; overflow: hidden; color: var(--color-muted); font-size: .72rem; transition: padding .25s ease; }
.faq-item.is-open .faq-answer { grid-template-rows: 1fr; }
.faq-item.is-open .faq-answer p { padding-bottom: 13px; }
.method { padding: 8px 0 34px; }
.method-flow { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(5, 1fr); list-style: none; }
.method-flow li { position: relative; display: flex; min-height: 100px; align-items: center; gap: 15px; padding: 14px 25px 14px 8px; }
.method-flow li:not(:last-child)::after { position: absolute; top: 50%; right: 5px; content: "\f054"; color: #194b6b; font-family: "Font Awesome 6 Free"; font-size: 1rem; font-weight: 900; transform: translateY(-50%); }
.method-flow i { flex: 0 0 48px; color: #174d6e; font-size: 2.4rem; text-align: center; }
.method-flow li:nth-child(2) i { color: var(--color-primary); }
.method-flow strong, .method-flow span { display: block; }
.method-flow strong { color: #0c4365; font-size: .68rem; line-height: 1.25; text-transform: uppercase; }
.method-flow span { margin-top: 5px; color: #61717a; font-size: .6rem; line-height: 1.35; }

/* Impacto */
.impact { position: relative; min-height: 170px; padding: 22px 0 25px; overflow: hidden; color: #fff; background: url("../img/impacto.webp") center 55% / cover no-repeat; isolation: isolate; }
.impact-overlay { position: absolute; inset: 0; z-index: -1; background: rgba(3, 36, 39, .61); }
.impact h2 { margin-bottom: 18px; font-size: .92rem; letter-spacing: .02em; text-align: center; text-transform: uppercase; }
.impact-grid { display: grid; grid-template-columns: repeat(6, 1fr); }
.impact-grid div { display: grid; place-items: center; gap: 6px; padding: 0 14px; border-right: 1px solid rgba(255,255,255,.28); text-align: center; }
.impact-grid div:last-child { border-right: 0; }
.impact-grid i { font-size: 1.65rem; }
.impact-grid span { max-width: 140px; font-size: .65rem; font-weight: 800; line-height: 1.35; text-transform: uppercase; }

/* Educação e CTA */
.education { position: relative; overflow: hidden; background: #052d47; isolation: isolate; }
.education-bg { position: absolute; inset: 0; z-index: -1; opacity: .18; background: url("../img/masterclass.webp") center 45% / cover no-repeat; filter: saturate(.6); }
.education-grid { display: grid; min-height: 220px; grid-template-columns: 1.15fr 1.85fr; align-items: center; gap: 45px; padding-block: 28px; }
.education-copy { padding-right: 30px; border-right: 1px solid rgba(255,255,255,.42); }
.education-copy h2 { margin-bottom: 4px; font-size: clamp(1.45rem, 2.2vw, 2.05rem); line-height: 1.05; text-transform: uppercase; }
.education-copy p { margin-bottom: 16px; color: rgba(255,255,255,.75); font-size: .75rem; }
.education-benefits { display: grid; grid-template-columns: repeat(4, 1fr); }
.education-benefits div { display: grid; min-height: 100px; place-items: center; gap: 10px; padding: 0 18px; text-align: center; }
.education-benefits i { font-size: 2.25rem; }
.education-benefits span { max-width: 120px; font-size: .67rem; font-weight: 800; text-transform: uppercase; }
.final-cta { border-top: 1px solid rgba(255,255,255,.22); border-bottom: 1px solid rgba(255,255,255,.22); background: linear-gradient(90deg, #073b5b, #03263d); }
.final-cta-inner { display: flex; min-height: 108px; align-items: center; justify-content: space-between; gap: 40px; }
.final-cta h2 { margin-bottom: 2px; font-size: clamp(1.5rem, 2.5vw, 2.2rem); line-height: 1.02; text-transform: uppercase; }
.final-cta p { margin: 0; color: rgba(255,255,255,.75); font-size: .8rem; }
.cta-actions { display: flex; flex: 0 0 auto; gap: 14px; }

/* Footer */
.site-footer { padding: 32px 0 12px; color: #fff; background: var(--color-darker); }
.footer-grid { display: grid; grid-template-columns: 1.35fr .75fr 1.15fr 1.35fr .8fr; gap: 32px; }
.footer-brand p { max-width: 275px; margin: 16px 0 12px; color: rgba(255,255,255,.68); font-size: .7rem; }
.social-links { display: flex; gap: 10px; }
.social-links a { display: grid; width: 27px; height: 27px; place-items: center; border: 1px solid rgba(255,255,255,.45); border-radius: 4px; font-size: .76rem; transition: color .2s ease, border-color .2s ease; }
.social-links a:hover { color: #92cf7f; border-color: #92cf7f; }
.footer-column { display: flex; flex-direction: column; align-items: flex-start; }
.footer-column h2 { margin-bottom: 10px; color: var(--color-primary); font-size: .72rem; letter-spacing: .11em; text-transform: uppercase; }
.footer-column a, .footer-column span { margin-bottom: 4px; color: rgba(255,255,255,.72); font-size: .66rem; line-height: 1.3; }
.footer-column a:hover { color: #fff; }
.contact-list i { width: 16px; margin-right: 6px; color: #fff; text-align: center; }
.footer-cert { display: flex; align-items: center; gap: 12px; }
.footer-cert p { margin: 0; color: rgba(255,255,255,.74); font-size: .58rem; font-weight: 700; text-transform: uppercase; }
.copyright { margin-top: 24px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,.13); color: rgba(255,255,255,.48); font-size: .6rem; text-align: right; }

/* Animações */
.reveal { transition: opacity .65s ease, transform .65s ease; }
.reveal-ready .reveal { opacity: 0; transform: translateY(16px); }
.reveal-ready .reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Responsividade */
@media (max-width: 1180px) {
  .header-cta { display: none; }
  .hero-copy { margin-left: 20%; }
  .about-grid { gap: 30px; }
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .leed-projects { grid-template-columns: 1fr; }
  .leed-content { padding-left: max(32px, calc((100vw - var(--container)) / 2)); }
  .projects-panel { padding: 34px max(24px, calc((100vw - var(--container)) / 2)); }
  .footer-grid { grid-template-columns: 1.35fr .7fr 1fr 1.3fr; }
  .footer-cert { display: none; }
}

@media (max-width: 920px) {
  :root { --header-height: 70px; }
  .container { width: min(calc(100% - 36px), var(--container)); }
  .site-header { position: absolute; }
  .header-inner { justify-content: space-between; }
  .menu-toggle { display: grid; place-items: center; margin-left: auto; }
  .main-nav { position: absolute; top: var(--header-height); right: 18px; left: 18px; display: grid; max-height: 0; margin: 0; padding: 0 22px; overflow: hidden; gap: 0; background: rgba(2,26,43,.98); opacity: 0; box-shadow: var(--shadow-soft); transition: max-height .3s ease, padding .3s ease, opacity .2s ease; }
  .main-nav.is-open { max-height: 550px; padding-block: 12px; opacity: 1; }
  .main-nav a { padding: 11px 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .main-nav a::after { display: none; }
  .hero { min-height: 630px; background-position: 38% center; }
  .hero-content { min-height: 560px; }
  .hero-copy { width: 64%; margin-left: 28%; padding-top: 80px; }
  .hero-copy h1 { font-size: clamp(2.45rem, 7vw, 3.7rem); }
  .certification-card { display: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255,255,255,.22); }
  .feature-grid { grid-template-columns: 1fr; gap: 14px; }
  .feature-card { min-height: 310px; }
  .about-grid { grid-template-columns: 1fr 1fr; }
  .about-grid .credentials { grid-column: 1 / -1; grid-template-columns: repeat(2, 1fr); }
  .faq-grid { grid-template-columns: repeat(2, 1fr); }
  .method-flow { grid-template-columns: repeat(2, 1fr); }
  .method-flow li:not(:last-child)::after { display: none; }
  .method-flow li:last-child { grid-column: 1 / -1; }
  .impact-grid { grid-template-columns: repeat(3, 1fr); row-gap: 24px; }
  .impact-grid div:nth-child(3) { border-right: 0; }
  .education-grid { grid-template-columns: 1fr; gap: 20px; }
  .education-copy { padding-right: 0; border-right: 0; }
  .final-cta-inner { padding-block: 28px; align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-column.contact-list { grid-column: span 2; }
}

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .brand-copy { display: none; }
  .brand-logo { height: 54px; }
  .brand-mark { width: 51px; height: 44px; font-size: 1.4rem; }
  .hero { min-height: 670px; background-position: left center; }
  .hero-overlay { background: linear-gradient(0deg, rgba(2,24,40,.92) 0%, rgba(2,24,40,.74) 58%, rgba(2,22,36,.18) 100%), linear-gradient(90deg, rgba(2,22,36,.18), rgba(2,29,47,.58)); }
  .hero-content { display: flex; min-height: 600px; align-items: flex-end; }
  .hero-copy { width: 100%; margin: 0; padding: 190px 0 46px; text-shadow: 0 2px 10px rgba(0,0,0,.35); }
  .hero-copy h1 { font-size: clamp(2.35rem, 11vw, 3.2rem); }
  .hero-copy p { font-size: .9rem; }
  .hero-actions { display: grid; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr; }
  .stat { min-height: 82px; justify-content: flex-start; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.2); }
  .stat:nth-child(2) { border-right: 0; }
  .feature-card { min-height: 290px; padding-inline: 22px; }
  .about { padding: 46px 0; }
  .about-grid { grid-template-columns: 1fr; gap: 26px; }
  .about-grid .credentials { grid-column: auto; grid-template-columns: 1fr; }
  .section-heading h2 { font-size: 2rem; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .service-card { min-height: 210px; }
  .large-seal { display: none; }
  .leed-panel { min-height: 530px; }
  .leed-content { width: 100%; padding: 45px 22px; }
  .leed-benefits { grid-template-columns: repeat(3, 1fr); row-gap: 18px; }
  .project-grid { grid-template-columns: 1fr; gap: 14px; }
  .project-image { height: 235px; }
  .project-body h3, .project-body p { min-height: 0; }
  .faq-grid { grid-template-columns: 1fr; gap: 10px; }
  .method-flow { grid-template-columns: 1fr; }
  .method-flow li:last-child { grid-column: auto; }
  .impact { padding-block: 27px; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .impact-grid div, .impact-grid div:nth-child(3) { min-height: 90px; border-right: 0; }
  .education-benefits { grid-template-columns: repeat(2, 1fr); }
  .education-benefits div { min-height: 120px; }
  .final-cta h2 br { display: none; }
  .cta-actions { width: 100%; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand, .footer-column.contact-list { grid-column: 1 / -1; }
  .footer-column.contact-list { overflow-wrap: anywhere; }
  .copyright { text-align: left; }
}

@media (max-width: 420px) {
  .services-grid { grid-template-columns: 1fr; }
  .service-card { min-height: auto; }
  .leed-benefits { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; }
}