@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@500;600;700;800&display=swap');

:root {
  --ink: #102019;
  --muted: #5d6b64;
  --green-950: #072d22;
  --green-900: #0b3d2e;
  --green-700: #126a4a;
  --green-500: #22a66f;
  --lime: #b8ef74;
  --cream: #f4f5ef;
  --paper: #ffffff;
  --line: #dce3de;
  --shadow: 0 24px 70px rgba(10, 54, 39, .12);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 14px;
  --container: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 86px; }
body { color: var(--ink); background: var(--paper); font-family: "DM Sans", sans-serif; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
img, svg { display: block; max-width: 100%; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; top: 12px; left: 12px; z-index: 9999; padding: 10px 14px; color: white; background: var(--green-900); border-radius: 8px; transform: translateY(-160%); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; inset: 0 0 auto; z-index: 1000; height: 82px; background: rgba(255,255,255,.9); border-bottom: 1px solid transparent; backdrop-filter: blur(18px); transition: .25s ease; }
.site-header.scrolled { border-color: rgba(10,54,39,.09); box-shadow: 0 8px 30px rgba(10,54,39,.06); }
.header-inner { width: min(calc(100% - 40px), 1240px); height: 100%; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: "Manrope", sans-serif; font-size: 1.15rem; font-weight: 600; letter-spacing: -.03em; }
.brand strong { color: var(--green-700); }
.brand-mark { width: 38px; height: 38px; display: grid; place-items: center; color: var(--lime); background: var(--green-900); border-radius: 11px; }
.brand-mark svg { width: 23px; }
.main-nav { display: flex; align-items: center; gap: 30px; }
.main-nav > a { color: #35433c; font-size: .94rem; font-weight: 600; }
.main-nav > a:not(.nav-button):hover { color: var(--green-700); }
.nav-button { padding: 11px 18px; color: white !important; background: var(--green-900); border-radius: 999px; }
.menu-button { display: none; width: 42px; height: 42px; padding: 10px; flex-direction: column; justify-content: center; gap: 5px; background: transparent; border: 0; cursor: pointer; }
.menu-button span { width: 100%; height: 2px; background: var(--ink); transition: .25s; }
.menu-button.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-button.open span:nth-child(2) { opacity: 0; }
.menu-button.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero { position: relative; min-height: 790px; padding: 152px 0 78px; overflow: hidden; background: linear-gradient(135deg, #fbfcf8 0%, #eef4ec 100%); }
.hero::before { content: ""; position: absolute; inset: 0; opacity: .42; background-image: linear-gradient(rgba(10,54,39,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(10,54,39,.05) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, black, transparent 85%); }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(20px); opacity: .55; }
.hero-glow-one { width: 420px; height: 420px; right: -120px; top: 80px; background: rgba(184,239,116,.28); }
.hero-glow-two { width: 320px; height: 320px; left: -160px; bottom: 20px; background: rgba(34,166,111,.13); }
.hero-grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.03fr .97fr; gap: 72px; align-items: center; }
.eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; color: var(--green-700); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow span { width: 28px; height: 2px; background: currentColor; }
.eyebrow.light { color: var(--lime); }
h1, h2, h3 { font-family: "Manrope", sans-serif; letter-spacing: -.045em; }
.hero h1 { max-width: 720px; font-size: clamp(3.3rem, 6.3vw, 6rem); line-height: .98; }
.hero-lead { max-width: 650px; margin-top: 28px; color: #4d5d55; font-size: 1.14rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button { min-height: 52px; padding: 13px 22px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid transparent; border-radius: 999px; font-weight: 700; cursor: pointer; transition: transform .2s, box-shadow .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button-primary { color: white; background: var(--green-900); box-shadow: 0 14px 30px rgba(11,61,46,.18); }
.button-primary:hover { background: var(--green-700); }
.button-ghost { color: var(--green-900); background: rgba(255,255,255,.65); border-color: rgba(11,61,46,.16); }
.button-ghost:hover { background: white; }
.button-full { width: 100%; border-radius: 12px; }
.trust-list { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 13px 24px; list-style: none; color: #435149; font-size: .9rem; }
.trust-list li::before { content: "✓"; margin-right: 8px; color: var(--green-700); font-weight: 900; }

.visual-panel { padding: 18px; color: white; background: linear-gradient(145deg, #0f4d39, #072d22); border: 1px solid rgba(255,255,255,.13); border-radius: var(--radius-xl); box-shadow: 0 40px 100px rgba(7,45,34,.25); transform: rotate(1.2deg); }
.visual-topline { padding: 8px 6px 16px; display: flex; justify-content: space-between; gap: 10px; color: rgba(255,255,255,.74); font-size: .78rem; }
.status { display: flex; align-items: center; gap: 7px; }
.status i { width: 7px; height: 7px; background: var(--lime); border-radius: 50%; box-shadow: 0 0 0 5px rgba(184,239,116,.13); }
.energy-scene { position: relative; height: 360px; overflow: hidden; background: #0d3b2e; border-radius: 23px; isolation: isolate; }
.energy-scene img { width: 100%; height: 100%; object-fit: cover; object-position: 58% center; transform: scale(1.015); }
.scene-shade { position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(4,30,23,.5) 0%, rgba(4,30,23,.12) 42%, rgba(4,30,23,.02) 72%), linear-gradient(0deg, rgba(4,30,23,.34), transparent 38%); pointer-events: none; }
.scene-badge { position: absolute; right: 18px; bottom: 18px; z-index: 2; width: min(260px, calc(100% - 36px)); padding: 15px 17px; display: grid; grid-template-columns: 34px 1fr; gap: 11px; align-items: start; color: white; background: rgba(5,34,25,.88); border: 1px solid rgba(255,255,255,.14); border-radius: 16px; box-shadow: 0 14px 35px rgba(0,0,0,.24); backdrop-filter: blur(10px); }
.scene-badge-icon { width: 34px; height: 34px; display: grid; place-items: center; color: var(--green-950); background: var(--lime); border-radius: 50%; font-weight: 900; }
.scene-badge strong, .scene-badge small { display: block; }
.scene-badge strong { font-size: .88rem; }
.scene-badge small { margin-top: 3px; color: rgba(255,255,255,.67); font-size: .69rem; line-height: 1.35; }
.visual-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; padding-top: 12px; }
.visual-metrics div { min-height: 104px; padding: 15px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.08); border-radius: 14px; }
.visual-metrics small { color: var(--lime); font-weight: 800; }
.visual-metrics strong, .visual-metrics span { display: block; }
.visual-metrics strong { margin-top: 8px; font-size: .9rem; }
.visual-metrics span { margin-top: 3px; color: rgba(255,255,255,.58); font-size: .72rem; line-height: 1.35; }

.intro-strip { color: white; background: var(--green-900); }
.intro-strip-grid { min-height: 180px; display: grid; grid-template-columns: .75fr 1.4fr 1fr; gap: 52px; align-items: center; }
.intro-strip p { color: rgba(255,255,255,.66); }
.intro-strip h2 { font-size: clamp(1.8rem,3vw,2.7rem); line-height: 1.1; }
.section { padding: 112px 0; }
.section-heading { max-width: 760px; margin-bottom: 54px; }
.section-heading.compact { max-width: 620px; }
.section-heading h2, .faq-intro h2, .method-copy h2, .contact-copy h2 { font-size: clamp(2.35rem, 4.8vw, 4.4rem); line-height: 1.04; }
.section-heading > p:last-child { max-width: 680px; margin-top: 18px; color: var(--muted); font-size: 1.05rem; }
.solution-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.solution-card { min-height: 535px; padding: 30px; display: flex; flex-direction: column; justify-content: space-between; color: var(--ink); background-color: #fafbf8; border: 1px solid var(--line); border-radius: var(--radius-lg); transition: background-color .75s cubic-bezier(.22,1,.36,1), color .55s ease, border-color .55s ease, transform .6s cubic-bezier(.22,1,.36,1), box-shadow .6s cubic-bezier(.22,1,.36,1); }
.solution-card:hover { color: white; background-color: var(--green-900); border-color: var(--green-900); transform: translateY(-6px) scale(1.008); box-shadow: 0 28px 70px rgba(10,54,39,.18); }
.solution-icon { width: 52px; height: 52px; display: grid; place-items: center; color: var(--green-700); background: #e8f2e8; border-radius: 50%; font-family: "Manrope", sans-serif; font-size: .78rem; font-weight: 800; transition: color .5s ease, background-color .6s ease, transform .6s cubic-bezier(.22,1,.36,1); }
.solution-card:hover .solution-icon { color: var(--green-900); background-color: var(--lime); transform: scale(1.06); }
.solution-label { margin-bottom: 6px; color: var(--green-700); font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; transition: color .5s ease; }
.solution-card:hover .solution-label { color: var(--lime); }
.solution-card h3 { margin-bottom: 16px; font-size: 2.2rem; }
.solution-card p { color: var(--muted); transition: color .5s ease; }
.solution-card:hover p { color: rgba(255,255,255,.68); }
.solution-card ul { padding-top: 22px; border-top: 1px solid var(--line); list-style: none; transition: border-color .55s ease; }
.solution-card:hover ul { border-color: rgba(255,255,255,.13); }
.solution-card li { position: relative; margin-top: 12px; padding-left: 20px; font-size: .9rem; }
.solution-card li::before { content: ""; position: absolute; top: .65em; left: 0; width: 7px; height: 7px; background: var(--green-500); border-radius: 50%; transition: background-color .55s ease; }
.solution-card:hover li::before { background-color: var(--lime); }

.dark-section { color: white; background: var(--green-950); }
.method-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 90px; align-items: start; }
.method-copy { position: sticky; top: 130px; }
.method-copy p:not(.eyebrow) { max-width: 540px; margin-top: 24px; color: rgba(255,255,255,.65); font-size: 1.07rem; }
.text-link { margin-top: 30px; display: inline-flex; gap: 14px; align-items: center; color: var(--lime); font-weight: 700; }
.text-link span { transition: transform .2s; }
.text-link:hover span { transform: translateX(5px); }
.method-list { border-top: 1px solid rgba(255,255,255,.13); }
.method-item { padding: 32px 0; display: grid; grid-template-columns: 64px 1fr; gap: 22px; border-bottom: 1px solid rgba(255,255,255,.13); }
.method-item > span { color: var(--lime); font-family: "Manrope", sans-serif; font-size: .8rem; font-weight: 800; }
.method-item h3 { margin-bottom: 8px; font-size: 1.35rem; }
.method-item p { color: rgba(255,255,255,.6); }

.process-grid { position: relative; display: grid; grid-template-columns: repeat(4,1fr); gap: 0; list-style: none; }
.process-grid::before { content: ""; position: absolute; top: 31px; left: 5%; right: 5%; height: 1px; background: var(--line); }
.process-step { position: relative; padding: 0 24px; }
.process-step:first-child { padding-left: 0; }
.process-step:last-child { padding-right: 0; }
.process-step > span { position: relative; z-index: 1; width: 62px; height: 62px; display: grid; place-items: center; color: white; background: var(--green-900); border: 7px solid white; border-radius: 50%; font-size: .75rem; font-weight: 800; }
.process-step h3 { margin: 25px 0 9px; font-size: 1.25rem; }
.process-step p { color: var(--muted); font-size: .94rem; }

.faq-section { background: var(--cream); }
.faq-layout { display: grid; grid-template-columns: .75fr 1.25fr; gap: 90px; align-items: start; }
.faq-intro { position: sticky; top: 130px; }
.faq-intro > p:last-child { margin-top: 22px; color: var(--muted); }
.faq-list { border-top: 1px solid #cbd4cd; }
.faq-item { border-bottom: 1px solid #cbd4cd; }
.faq-question { width: 100%; padding: 25px 0; display: flex; align-items: center; justify-content: space-between; gap: 24px; background: transparent; border: 0; text-align: left; font-weight: 700; cursor: pointer; }
.faq-question span { font-size: 1.05rem; }
.faq-question i { position: relative; flex: none; width: 26px; height: 26px; border: 1px solid #aab7ad; border-radius: 50%; }
.faq-question i::before, .faq-question i::after { content: ""; position: absolute; top: 50%; left: 50%; width: 10px; height: 1px; background: var(--green-900); transform: translate(-50%,-50%); transition: transform .25s; }
.faq-question i::after { transform: translate(-50%,-50%) rotate(90deg); }
.faq-question[aria-expanded="true"] i::after { transform: translate(-50%,-50%) rotate(0); }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .32s ease; }
.faq-answer > div { overflow: hidden; }
.faq-answer p { padding: 0 50px 24px 0; color: var(--muted); }
.faq-item.open .faq-answer { grid-template-rows: 1fr; }

.contact-section { padding: 112px 0; color: white; background: linear-gradient(135deg, #0b3d2e, #072d22); }
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 80px; align-items: start; }
.contact-copy > p:not(.eyebrow) { max-width: 540px; margin-top: 24px; color: rgba(255,255,255,.67); }
.contact-note { margin-top: 38px; padding: 20px; display: grid; gap: 7px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.11); border-radius: var(--radius-md); }
.contact-note span { color: rgba(255,255,255,.6); font-size: .92rem; }
.contact-form { padding: 34px; color: var(--ink); background: white; border-radius: var(--radius-lg); box-shadow: 0 25px 80px rgba(0,0,0,.2); }
.contact-form label { display: grid; gap: 7px; margin-bottom: 17px; font-size: .86rem; font-weight: 700; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 13px 14px; color: var(--ink); background: #f8faf7; border: 1px solid #d3ddd6; border-radius: 10px; outline: none; transition: border .2s, box-shadow .2s; }
.contact-form textarea { min-height: 132px; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--green-500); box-shadow: 0 0 0 4px rgba(34,166,111,.12); }
.contact-form .invalid { border-color: #be3d32; }
.form-status { min-height: 24px; margin-top: 10px; text-align: center; font-size: .88rem; }
.form-status.error { color: #a32f26; }
.form-status.success { color: var(--green-700); }

.site-footer { padding: 52px 0; color: rgba(255,255,255,.65); background: #051e17; }
.footer-grid { display: grid; grid-template-columns: 1fr auto; gap: 36px; align-items: end; }
.footer-brand { color: white; }
.footer-grid > div:first-child > p { margin-top: 13px; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 22px; font-size: .9rem; }
.footer-links a:hover { color: white; }
.footer-copy { grid-column: 1/-1; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.1); font-size: .82rem; }
.whatsapp-float { position: fixed; right: 22px; bottom: 22px; z-index: 999; width: 58px; height: 58px; display: grid; place-items: center; color: white; background: #25d366; border-radius: 50%; box-shadow: 0 12px 30px rgba(0,0,0,.22); transition: transform .2s; }
.whatsapp-float:hover { transform: translateY(-3px) scale(1.03); }
.whatsapp-float svg { width: 30px; }

.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 980px) {
  .menu-button { display: flex; }
  .main-nav { position: absolute; top: 82px; left: 20px; right: 20px; padding: 16px; display: none; flex-direction: column; align-items: stretch; gap: 0; background: white; border: 1px solid var(--line); border-radius: 16px; box-shadow: var(--shadow); }
  .main-nav.open { display: flex; }
  .main-nav > a { padding: 12px 8px; }
  .nav-button { margin-top: 8px; text-align: center; }
  .hero-grid, .method-grid, .faq-layout, .contact-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 132px; }
  .hero-grid { gap: 54px; }
  .hero-copy { max-width: 760px; }
  .hero-visual { max-width: 680px; }
  .intro-strip-grid { grid-template-columns: 1fr; gap: 14px; padding: 38px 0; }
  .solution-grid { grid-template-columns: 1fr; }
  .solution-card { min-height: auto; gap: 45px; }
  .method-copy, .faq-intro { position: static; }
  .process-grid { grid-template-columns: 1fr 1fr; gap: 42px 0; }
  .process-grid::before { display: none; }
  .contact-grid { gap: 52px; }
}

@media (max-width: 640px) {
  .container, .header-inner { width: min(calc(100% - 28px), var(--container)); }
  .site-header { height: 72px; }
  .main-nav { top: 72px; left: 14px; right: 14px; }
  .brand { font-size: 1rem; }
  .brand-mark { width: 34px; height: 34px; }
  .hero { min-height: auto; padding: 112px 0 62px; }
  .hero h1 { font-size: clamp(2.75rem, 14vw, 4.2rem); }
  .hero-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .visual-panel { padding: 12px; border-radius: 24px; transform: none; }
  .energy-scene { height: 285px; }
  .energy-scene img { object-position: 62% center; }
  .scene-badge { right: 12px; bottom: 12px; width: calc(100% - 24px); }
  .roof { left: 18px; width: 75%; height: 115px; }
  .visual-topline { font-size: .68rem; }
  .visual-metrics { grid-template-columns: 1fr; }
  .visual-metrics div { min-height: auto; }
  .section, .contact-section { padding: 82px 0; }
  .section-heading h2, .faq-intro h2, .method-copy h2, .contact-copy h2 { font-size: 2.45rem; }
  .solution-card { padding: 24px; }
  .method-grid, .faq-layout, .contact-grid { gap: 50px; }
  .process-grid { grid-template-columns: 1fr; gap: 32px; }
  .process-step { padding: 0; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form { padding: 24px 18px; }
  .footer-grid { grid-template-columns: 1fr; align-items: start; }
  .footer-links { justify-content: flex-start; }
  .whatsapp-float { right: 15px; bottom: 15px; width: 54px; height: 54px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none !important; }
  .solution-card { transition: background-color .75s ease, color .55s ease, border-color .55s ease !important; }
  .solution-card:hover { transform: none; }
  .solution-icon { transition: color .5s ease, background-color .6s ease !important; }
  .solution-card:hover .solution-icon { transform: none; }
  .solution-label, .solution-card p { transition: color .5s ease !important; }
  .solution-card ul { transition: border-color .55s ease !important; }
  .solution-card li::before { transition: background-color .55s ease !important; }
}