:root {
  --forest: #173f32;
  --forest-deep: #0c2a22;
  --forest-soft: #2f604d;
  --olive: #71864a;
  --grass: #91a967;
  --water: #4f8fa3;
  --sand: #eee7d8;
  --cream: #f8f5ee;
  --earth: #8b6848;
  --gold: #bd9d61;
  --ink: #18231e;
  --muted: #66716b;
  --line: rgba(23, 63, 50, .14);
  --white: #fff;
  --shadow: 0 24px 60px rgba(16, 42, 34, .12);
  --radius: 22px;
  --font-head: "Manrope", sans-serif;
  --font-body: "DM Sans", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font-body); color: var(--ink); background: var(--cream); line-height: 1.65; overflow-x: hidden; }
body.menu-open { overflow: hidden; }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { border: 0; background: none; }
.container { width: calc(100% - 42px); max-width: 1180px; margin-inline: auto; }
.skip-link { position: fixed; top: -60px; left: 20px; z-index: 9999; background: var(--white); color: var(--forest); padding: 12px 18px; border-radius: 8px; }
.skip-link:focus { top: 20px; }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; height: 82px; display: flex; align-items: center; color: var(--white); transition: .3s ease; }
.site-header.scrolled { height: 70px; background: rgba(12, 42, 34, .96); box-shadow: 0 12px 30px rgba(0,0,0,.12); backdrop-filter: blur(14px); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 12px; min-width: max-content; }
.brand-mark { width: 44px; height: 44px; fill: var(--white); }
.brand-mark-line, .brand-mark-field { fill: none; stroke: var(--forest); stroke-width: 2.6; stroke-linecap: round; }
.brand-copy { display: grid; line-height: 1; gap: 5px; }
.brand-copy strong { font-family: var(--font-head); letter-spacing: .08em; font-size: 17px; }
.brand-copy small { font-size: 10px; text-transform: uppercase; letter-spacing: .08em; opacity: .78; }
.desktop-nav { display: flex; align-items: center; gap: clamp(16px, 2.2vw, 30px); margin-left: auto; }
.desktop-nav a { font-size: 13px; font-weight: 600; position: relative; }
.desktop-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -8px; height: 2px; background: var(--grass); transition: .25s ease; }
.desktop-nav a:hover::after { right: 0; }
.header-cta { background: var(--sand); color: var(--forest-deep); padding: 11px 17px; border-radius: 999px; font-weight: 700; font-size: 13px; transition: .25s ease; }
.header-cta:hover { background: var(--white); transform: translateY(-2px); }
.menu-toggle { display: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.3); padding: 11px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; background: var(--white); margin: 5px 0; transition: .25s ease; }
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-nav { display: none; position: fixed; inset: 70px 0 auto; background: var(--forest-deep); color: var(--white); padding: 18px 22px 28px; box-shadow: var(--shadow); }
.mobile-nav a { display: block; padding: 13px 0; border-bottom: 1px solid rgba(255,255,255,.1); font-weight: 600; }
.mobile-nav.open { display: block; }

.hero { min-height: 100svh; position: relative; display: flex; align-items: center; color: var(--white); isolation: isolate; }
.hero-bg { position: absolute; inset: 0; background-image: url('../img/hero-final.webp'); background-size: cover; background-position: 72% center; background-repeat: no-repeat; z-index: -3; }
.hero-shade { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,31,25,.94) 0%, rgba(8,31,25,.78) 43%, rgba(8,31,25,.28) 72%, rgba(8,31,25,.48) 100%); z-index: -2; }
.hero-shade::after { content: ""; position: absolute; inset: auto 0 0; height: 40%; background: linear-gradient(transparent, rgba(8,31,25,.48)); }
.hero-grid { padding: 150px 0 92px; display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(280px, .75fr); gap: 48px; align-items: end; }
.eyebrow { display: inline-block; font-size: 12px; letter-spacing: .16em; font-weight: 800; text-transform: uppercase; color: var(--olive); margin-bottom: 18px; }
.eyebrow-light { color: #c7d9af; }
.hero h1 { margin: 0; font-family: var(--font-head); font-size: clamp(56px, 6.9vw, 94px); line-height: .92; letter-spacing: -.055em; max-width: 780px; }
.hero h1 em { font-style: normal; color: #d3e3b7; }
.hero-lead { max-width: 700px; font-size: clamp(18px, 2.2vw, 23px); line-height: 1.5; margin: 30px 0 18px; color: rgba(255,255,255,.88); }
.hero-principle { font-size: 16px; color: rgba(255,255,255,.74); margin: 0; }
.hero-principle strong { color: var(--white); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; padding: 0 23px; border-radius: 999px; font-weight: 800; font-size: 14px; cursor: pointer; transition: .25s ease; }
.button-primary { background: var(--sand); color: var(--forest-deep); box-shadow: 0 12px 30px rgba(0,0,0,.16); }
.button-primary:hover { background: var(--white); transform: translateY(-2px); }
.button-ghost { border: 1px solid rgba(255,255,255,.48); color: var(--white); }
.button-ghost:hover { background: rgba(255,255,255,.1); transform: translateY(-2px); }
.hero-location { display: flex; flex-wrap: wrap; gap: 8px 20px; margin-top: 28px; color: rgba(255,255,255,.68); font-size: 13px; }
.hero-location span::before { content: "•"; color: var(--grass); margin-right: 8px; }
.hero-card { padding: 28px; border-radius: var(--radius); background: rgba(248,245,238,.92); color: var(--ink); backdrop-filter: blur(12px); box-shadow: var(--shadow); }
.hero-card-kicker { display: block; color: var(--forest-soft); text-transform: uppercase; font-size: 11px; font-weight: 800; letter-spacing: .14em; margin-bottom: 12px; }
.hero-benefit { padding: 18px 0; border-bottom: 1px solid var(--line); }
.hero-benefit:last-child { border: 0; padding-bottom: 0; }
.hero-benefit strong { display: block; font-family: var(--font-head); font-size: 22px; color: var(--forest); }
.hero-benefit span { display: block; color: var(--muted); font-size: 14px; margin-top: 3px; }
.hero-scroll { position: absolute; bottom: 24px; left: 50%; transform: translateX(-50%); display: flex; gap: 12px; align-items: center; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.72); }
.hero-scroll span { animation: bounce 1.8s infinite; }
@keyframes bounce { 50% { transform: translateY(5px); } }

.statement { padding: 120px 0; background: var(--cream); }
.statement-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 100px; align-items: start; }
h2 { font-family: var(--font-head); font-size: clamp(38px, 5vw, 64px); line-height: 1.06; letter-spacing: -.04em; margin: 0; }
.statement-highlight { color: var(--forest-soft); font-family: var(--font-head); font-size: clamp(25px, 3vw, 36px); font-weight: 700; margin: 18px 0 0; }
.statement-body > p:first-child { font-size: 19px; margin-top: 0; color: #34443c; }
.check-list { list-style: none; padding: 0; margin: 28px 0; display: grid; gap: 12px; }
.check-list li { position: relative; padding-left: 30px; }
.check-list li::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--olive); position: absolute; left: 0; top: .55em; box-shadow: 0 0 0 6px rgba(113,134,74,.12); }
.body-emphasis { font-weight: 700; color: var(--forest); }

.system-section { padding: 0 0 130px; background: var(--cream); }
.system-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: 80px; align-items: center; }
.system-visual { position: relative; }
.system-visual { overflow: visible; }
.system-visual img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; object-position: center; border-radius: 28px; box-shadow: var(--shadow); }
.system-caption { position: absolute; left: -28px; bottom: 30px; max-width: 270px; padding: 18px 20px; border-radius: 14px; background: var(--forest); color: var(--white); font-weight: 700; box-shadow: var(--shadow); }
.system-copy p { color: var(--muted); font-size: 17px; }
.system-copy blockquote { margin: 28px 0 0; padding: 22px 24px; border-left: 4px solid var(--olive); background: #ecebdc; font-family: var(--font-head); font-size: 21px; font-weight: 700; color: var(--forest); }

.productivity { padding: 120px 0; background: #edf0e5; }
.section-heading { margin-bottom: 52px; }
.section-heading.centered { text-align: center; max-width: 850px; margin-inline: auto; }
.section-heading p { color: var(--muted); font-size: 18px; max-width: 760px; margin: 20px auto 0; }
.section-heading.split { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 90px; align-items: end; }
.section-heading.split p { margin: 0; }
.impact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.impact-card { min-height: 260px; padding: 26px; background: rgba(255,255,255,.72); border: 1px solid rgba(23,63,50,.08); border-radius: 18px; transition: .25s ease; }
.impact-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); background: var(--white); }
.impact-number { color: var(--olive); font-weight: 800; font-size: 12px; letter-spacing: .14em; }
.impact-card h3 { font-family: var(--font-head); font-size: 23px; margin: 80px 0 8px; color: var(--forest); }
.impact-card p { margin: 0; color: var(--muted); font-size: 15px; }

.research-section { padding: 120px 0; background: var(--forest-deep); color: var(--white); }
.research-header { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: end; margin-bottom: 50px; }
.research-header p { margin: 0; color: rgba(255,255,255,.68); font-size: 18px; }
.research-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.research-card { padding: 28px; min-height: 290px; border-radius: 18px; border: 1px solid rgba(255,255,255,.13); background: rgba(255,255,255,.055); transition: .25s ease; }
.research-card:hover { transform: translateY(-5px); border-color: rgba(211,227,183,.45); background: rgba(255,255,255,.09); }
.research-source { color: #c7d9af; text-transform: uppercase; font-size: 11px; letter-spacing: .14em; font-weight: 800; }
.research-card h3 { font-family: var(--font-head); font-size: 28px; margin: 48px 0 12px; }
.research-card p { color: rgba(255,255,255,.66); margin: 0 0 20px; }
.research-link { display: inline-block; color: var(--white); font-weight: 700; font-size: 13px; }
.research-note { margin: 26px 0 0; color: rgba(255,255,255,.48); font-size: 13px; }

.projects-section { padding: 130px 0; background: var(--cream); }
.projects-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: center; }
.projects-copy p { color: var(--muted); font-size: 18px; }
.project-factors { display: flex; flex-wrap: wrap; gap: 9px; margin: 30px 0; }
.project-factors span { background: #e7eadf; border: 1px solid rgba(23,63,50,.08); border-radius: 999px; padding: 8px 13px; font-size: 13px; font-weight: 700; color: var(--forest-soft); }
.text-link { display: inline-flex; gap: 10px; align-items: center; font-weight: 800; color: var(--forest); border-bottom: 1px solid var(--forest); padding-bottom: 3px; }
.text-link span { transition: .2s ease; }
.text-link:hover span { transform: translateX(5px); }
.project-diagram { min-height: 560px; position: relative; border-radius: 50%; border: 1px dashed rgba(23,63,50,.24); background: radial-gradient(circle, rgba(113,134,74,.12), transparent 62%); }
.project-diagram::before, .project-diagram::after { content: ""; position: absolute; inset: 16%; border: 1px solid rgba(23,63,50,.09); border-radius: 50%; }
.project-diagram::after { inset: 32%; }
.diagram-center { position: absolute; inset: 50% auto auto 50%; transform: translate(-50%,-50%); width: 180px; height: 180px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; border-radius: 50%; background: var(--forest); color: var(--white); box-shadow: var(--shadow); z-index: 2; }
.diagram-center svg { width: 50px; fill: #d3e3b7; }
.diagram-center svg path:last-child { fill: none; stroke: var(--forest); stroke-width: 3; }
.diagram-center strong { font-family: var(--font-head); font-size: 19px; }
.diagram-center span { font-size: 12px; opacity: .7; }
.diagram-node { position: absolute; width: 155px; padding: 16px; border-radius: 15px; background: var(--white); box-shadow: 0 12px 34px rgba(16,42,34,.1); }
.diagram-node > span { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--olive); color: var(--white); font-weight: 800; font-size: 11px; margin-bottom: 9px; }
.diagram-node strong, .diagram-node small { display: block; }
.diagram-node strong { color: var(--forest); }
.diagram-node small { color: var(--muted); }
.node-1 { top: 5%; left: 13%; }
.node-2 { top: 11%; right: 4%; }
.node-3 { bottom: 7%; right: 9%; }
.node-4 { bottom: 8%; left: 7%; }

.method-section { padding: 120px 0; background: var(--forest); color: var(--white); }
.method-list { display: grid; grid-template-columns: 1fr 1fr; border-top: 1px solid rgba(255,255,255,.14); }
.method-step { display: grid; grid-template-columns: 48px 1fr; gap: 18px; padding: 30px 30px 30px 0; border-bottom: 1px solid rgba(255,255,255,.14); }
.method-step:nth-child(odd) { border-right: 1px solid rgba(255,255,255,.14); }
.method-step:nth-child(even) { padding-left: 30px; }
.method-step > span { font-family: var(--font-head); font-size: 14px; color: #c7d9af; }
.method-step h3 { font-family: var(--font-head); font-size: 24px; margin: 0 0 6px; }
.method-step p { color: rgba(255,255,255,.62); margin: 0; }

.solutions-section { padding: 125px 0; background: var(--cream); }
.solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.solution-card { min-height: 255px; padding: 24px; border-radius: 18px; background: var(--white); border: 1px solid var(--line); position: relative; overflow: hidden; transition: .25s ease; min-width: 0; }
.solution-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.solution-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: #e8ecdf; color: var(--forest); font-size: 24px; }
.solution-card h3 { font-family: var(--font-head); font-size: 22px; color: var(--forest); margin: 70px 0 8px; }
.solution-card p { margin: 0; color: var(--muted); font-size: 14px; }
.solution-featured { grid-column: span 2; grid-row: span 2; aspect-ratio: 4/3; min-height: 0; padding: 0; color: var(--white); }
.solution-featured img, .solution-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.solution-featured::after, .solution-image::after { content: ""; position: absolute; inset: 0; background: linear-gradient(transparent 38%, rgba(8,31,25,.92)); }
.solution-overlay { position: absolute; z-index: 2; left: 28px; right: 28px; bottom: 28px; }
.solution-overlay span, .solution-image-copy span { font-size: 11px; text-transform: uppercase; letter-spacing: .13em; color: #d3e3b7; font-weight: 800; }
.solution-overlay h3 { color: var(--white); font-size: 34px; margin: 8px 0; }
.solution-overlay p { color: rgba(255,255,255,.72); max-width: 430px; font-size: 15px; }
.solution-image { grid-column: span 2; aspect-ratio: 4/3; padding: 0; min-height: 0; color: var(--white); }
.solution-image-copy { position: absolute; z-index: 2; left: 24px; right: 24px; bottom: 24px; }
.solution-image-copy h3 { color: var(--white); margin: 6px 0; font-size: 29px; }
.solution-image-copy p { color: rgba(255,255,255,.72); }

.cases-section { padding: 120px 0; background: #edf0e5; }
.cases-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.case-card { padding: 28px; border-radius: 18px; background: var(--white); border-top: 4px solid var(--olive); }
.case-index { color: var(--olive); font-size: 11px; text-transform: uppercase; letter-spacing: .14em; font-weight: 800; }
.case-card h3 { font-family: var(--font-head); font-size: 25px; line-height: 1.2; margin: 28px 0; color: var(--forest); }
.case-label { margin: 16px 0 3px !important; font-size: 11px !important; letter-spacing: .13em; text-transform: uppercase; font-weight: 800; color: var(--earth) !important; }
.case-card p { color: var(--muted); font-size: 14px; }
.case-result { margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--line); }
.case-result span, .case-result strong { display: block; }
.case-result span { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .1em; }
.case-result strong { color: var(--forest); margin-top: 5px; }

.faq-section { padding: 125px 0; background: var(--cream); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: 100px; align-items: start; }
.faq-intro { position: sticky; top: 110px; }
.faq-intro p { color: var(--muted); font-size: 17px; }
.accordion-item { border-bottom: 1px solid var(--line); }
.accordion-item button { width: 100%; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 23px 0; color: var(--ink); text-align: left; cursor: pointer; font-weight: 700; font-size: 17px; }
.accordion-item button b { font-size: 24px; color: var(--olive); transition: .25s ease; }
.accordion-item.open button b { transform: rotate(45deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.accordion-content p { color: var(--muted); margin: 0; padding: 0 45px 22px 0; }
.accordion-item.open .accordion-content { max-height: 180px; }

.contact-section { position: relative; padding: 125px 0; color: var(--white); isolation: isolate; }
.contact-background { position: absolute; inset: 0; z-index: -3; background-image: url('../img/sistema-final.webp'); background-size: cover; background-position: center; background-repeat: no-repeat; }
.contact-shade { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(8,31,25,.96), rgba(8,31,25,.78)); }
.contact-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 75px; align-items: start; }
.contact-copy { padding-top: 24px; }
.contact-copy p { color: rgba(255,255,255,.72); font-size: 18px; }
.contact-details { display: grid; gap: 12px; margin-top: 38px; }
.contact-details a, .contact-details > div { padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,.16); display: flex; justify-content: space-between; gap: 20px; }
.contact-details span { color: rgba(255,255,255,.56); font-size: 13px; }
.evaluation-form { background: rgba(248,245,238,.97); color: var(--ink); padding: 34px; border-radius: 24px; box-shadow: var(--shadow); }
.form-heading span { color: var(--olive); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; font-weight: 800; }
.form-heading h3 { font-family: var(--font-head); font-size: 30px; margin: 5px 0 25px; color: var(--forest); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid label { display: grid; gap: 7px; font-size: 12px; font-weight: 700; color: #4d5a53; }
.form-grid .full { grid-column: 1/-1; }
input, select, textarea { width: 100%; border: 1px solid rgba(23,63,50,.16); background: var(--white); border-radius: 10px; padding: 12px 13px; color: var(--ink); outline: none; transition: .2s ease; }
input:focus, select:focus, textarea:focus { border-color: var(--olive); box-shadow: 0 0 0 3px rgba(113,134,74,.12); }
textarea { resize: vertical; }
.button-form { width: 100%; margin-top: 18px; background: var(--forest); color: var(--white); border-radius: 10px; }
.button-form:hover { background: var(--forest-deep); transform: translateY(-2px); }
.form-note { color: var(--muted); font-size: 11px; margin: 12px 0 0; text-align: center; }

.site-footer { background: #081f19; color: var(--white); padding: 58px 0 24px; }
.footer-main { display: grid; grid-template-columns: .8fr 1.2fr .5fr; gap: 60px; align-items: start; padding-bottom: 44px; }
.brand-footer .brand-mark { fill: #d3e3b7; }
.brand-footer .brand-mark-line, .brand-footer .brand-mark-field { stroke: var(--forest); }
.footer-copy { display: grid; gap: 8px; }
.footer-copy strong { font-family: var(--font-head); font-size: 21px; }
.footer-copy span { color: rgba(255,255,255,.54); }
.footer-links { display: grid; gap: 8px; color: rgba(255,255,255,.7); font-size: 14px; }
.footer-links a:hover { color: var(--white); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; border-top: 1px solid rgba(255,255,255,.1); color: rgba(255,255,255,.42); font-size: 12px; }
.floating-whatsapp { position: fixed; z-index: 900; right: 22px; bottom: 22px; width: 58px; height: 58px; display: grid; place-items: center; border-radius: 50%; background: #25d366; box-shadow: 0 14px 30px rgba(0,0,0,.22); transition: .25s ease; }
.floating-whatsapp:hover { transform: translateY(-4px) scale(1.03); }
.floating-whatsapp svg { width: 28px; fill: var(--white); }

.reveal { opacity: 1; transform: none; }
.js .reveal { opacity: 0; transform: translateY(25px); transition: opacity .75s ease, transform .75s ease; }
.js .reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay { transition-delay: .12s; }
.reveal-delay-1 { transition-delay: .08s; }
.reveal-delay-2 { transition-delay: .16s; }
.reveal-delay-3 { transition-delay: .24s; }



@media (max-width: 1240px) {
  .system-grid { grid-template-columns: 1fr; gap: 44px; }
  .system-visual { max-width: 760px; margin-inline: auto; }
  .system-copy { max-width: 760px; margin-inline: auto; }
  .system-copy h2 { max-width: 760px; }
}

@media (max-width: 1180px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-card { max-width: 580px; }
  .statement-grid, .system-grid, .section-heading.split, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .system-visual { max-width: 760px; margin-inline: auto; }
  .system-copy, .statement-title, .statement-body { max-width: 760px; }
}

@media (max-width: 1050px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: block; }
  .header-cta { margin-left: auto; }
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero-card { max-width: 580px; }
  .statement-grid, .system-grid, .projects-grid, .contact-grid { gap: 55px; }
  .impact-grid { grid-template-columns: 1fr 1fr; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-featured { grid-column: span 1; }
  .faq-grid { gap: 55px; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-column: 2; }
}

@media (max-width: 780px) {
  .container { width: calc(100% - 30px); max-width: 620px; }
  .site-header, .site-header.scrolled { height: 68px; }
  .brand-mark { width: 39px; height: 39px; }
  .brand-copy strong { font-size: 15px; }
  .brand-copy small { font-size: 8px; }
  .header-cta { display: none; }
  .hero-grid { padding: 125px 0 105px; }
  .hero h1 { font-size: clamp(50px, 16vw, 72px); }
  .hero-shade { background: linear-gradient(90deg, rgba(8,31,25,.94), rgba(8,31,25,.67)); }
  .hero-bg { background-position: 72% center; }
  .contact-background { background-position: 64% center; }
  .hero-card { padding: 22px; }
  .hero-scroll { display: none; }
  .statement, .productivity, .research-section, .projects-section, .method-section, .solutions-section, .cases-section, .faq-section, .contact-section { padding: 90px 0; }
  .system-section { padding-bottom: 90px; }
  .statement-grid, .system-grid, .research-header, .projects-grid, .section-heading.split, .faq-grid, .contact-grid { grid-template-columns: 1fr; gap: 42px; }
  .system-caption { left: 14px; right: 14px; bottom: 14px; max-width: none; }
  .system-visual img { max-height: none; }
  .impact-grid, .research-grid, .cases-grid { grid-template-columns: 1fr; }
  .impact-card { min-height: 220px; }
  .impact-card h3 { margin-top: 48px; }
  .project-diagram { min-height: 500px; }
  .method-list { grid-template-columns: 1fr; }
  .method-step:nth-child(odd) { border-right: 0; }
  .method-step:nth-child(even) { padding-left: 0; }
  .solutions-grid { grid-template-columns: 1fr; }
  .solution-featured, .solution-image { grid-column: span 1; }
  .solution-featured { aspect-ratio: 4/3; min-height: 0; }
  .faq-intro { position: static; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: auto; }
  .evaluation-form { padding: 24px; }
  .footer-main { grid-template-columns: 1fr; gap: 30px; }
  .footer-links { grid-column: auto; }
  .footer-bottom { flex-direction: column; }
}

@media (max-width: 520px) {
  .hero-actions { flex-direction: column; align-items: stretch; }
  .button { width: 100%; text-align: center; }
  .hero-location { display: grid; }
  .project-diagram { min-height: 620px; border-radius: 28px; }
  .diagram-center { width: 155px; height: 155px; }
  .diagram-node { width: 145px; }
  .node-1 { top: 4%; left: 4%; }
  .node-2 { top: 4%; right: 4%; }
  .node-3 { bottom: 4%; right: 4%; }
  .node-4 { bottom: 4%; left: 4%; }
  .contact-details a, .contact-details > div { flex-direction: column; gap: 3px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* Image placement: preserves source proportions and crops without stretching. */
.system-visual, .solution-featured, .solution-image { min-width: 0; }
.system-visual img { object-position: 55% center; }
.solution-featured img { object-position: center; }
.solution-image img { object-position: 58% center; }
.hero-grid > *, .statement-grid > *, .system-grid > *, .contact-grid > *, .section-heading.split > * { min-width: 0; }
h1, h2, h3, p { overflow-wrap: break-word; }