:root {
  --navy-950: #04111f;
  --navy-900: #071a2f;
  --navy-800: #0b2844;
  --blue-500: #1685ee;
  --blue-400: #44a7ff;
  --solar: #ffc83d;
  --solar-soft: #ffe59a;
  --ice: #eef7ff;
  --white: #ffffff;
  --ink: #112033;
  --muted: #617286;
  --line: rgba(11, 40, 68, 0.13);
  --radius: 1.25rem;
  --shadow: 0 24px 70px rgba(4, 17, 31, 0.13);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: #fbfdff;
  font-family: "DM Sans", system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; background: var(--white); padding: .75rem 1rem; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.15);
}
.nav-wrap { width: min(1180px, calc(100% - 3rem)); min-height: 86px; margin: auto; display: flex; align-items: center; justify-content: space-between; }
.brand { display: inline-flex; align-items: center; gap: .75rem; }
.brand-mark { width: 38px; height: 38px; border: 2px solid var(--solar); border-radius: 50%; display: grid; place-items: center; box-shadow: 0 0 0 5px rgba(255,200,61,.12); }
.brand-mark span { width: 15px; height: 15px; background: var(--solar); border-radius: 50%; box-shadow: 0 -11px 0 -6px var(--solar), 0 11px 0 -6px var(--solar), 11px 0 0 -6px var(--solar), -11px 0 0 -6px var(--solar); }
.brand-copy { display: grid; line-height: 1; letter-spacing: .12em; }
.brand-copy strong { font: 800 1.05rem/1 "Manrope", sans-serif; }
.brand-copy small { margin-top: .28rem; font-size: .61rem; letter-spacing: .42em; color: var(--solar); }
.site-nav { display: flex; align-items: center; gap: 2rem; font-size: .95rem; font-weight: 600; }
.site-nav > a:not(.nav-cta) { position: relative; }
.site-nav > a:not(.nav-cta)::after { content: ""; position: absolute; left: 0; bottom: -.4rem; width: 0; height: 2px; background: var(--solar); transition: width .25s ease; }
.site-nav > a:hover::after, .site-nav > a:focus-visible::after { width: 100%; }
.nav-cta { border: 1px solid rgba(255,255,255,.5); padding: .66rem 1rem; border-radius: 999px; }
.nav-cta:hover { background: var(--white); color: var(--navy-900); }
.menu-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; padding: 10px; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--white); border-radius: 10px; }

.hero { position: relative; min-height: 760px; height: min(88vh, 900px); display: flex; align-items: center; color: var(--white); background: linear-gradient(125deg, var(--navy-950), var(--navy-800)); isolation: isolate; overflow: hidden; }
.hero-image { position: absolute; inset: 0; z-index: -3; background-image: url("solaris-hero.webp"); background-size: cover; background-position: center; opacity: .92; }
.hero-overlay { position: absolute; inset: 0; z-index: -2; background: linear-gradient(90deg, rgba(4,17,31,.98) 0%, rgba(4,17,31,.83) 39%, rgba(4,17,31,.27) 72%, rgba(4,17,31,.38) 100%), linear-gradient(0deg, rgba(4,17,31,.65), transparent 45%); }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: .12; background-image: linear-gradient(rgba(255,255,255,.18) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.18) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to right, black, transparent 63%); }
.hero-inner { width: min(1180px, calc(100% - 3rem)); margin: 66px auto 0; }
.eyebrow, .kicker { margin: 0 0 1rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: .78rem; }
.eyebrow { display: flex; align-items: center; gap: .65rem; color: var(--solar-soft); }
.eyebrow span { width: 28px; height: 2px; background: var(--solar); }
.hero h1 { max-width: 760px; margin: 0; font: 700 clamp(3.3rem, 6.6vw, 6.8rem)/.96 "Manrope", sans-serif; letter-spacing: -.065em; text-wrap: balance; }
.hero h1 em { display: block; font-style: normal; color: var(--solar); }
.hero-lead { max-width: 625px; margin: 1.75rem 0 0; font-size: clamp(1.05rem, 1.5vw, 1.25rem); color: rgba(255,255,255,.78); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .85rem; margin-top: 2rem; }
.btn { min-height: 52px; padding: .84rem 1.3rem; border-radius: 999px; display: inline-flex; align-items: center; justify-content: center; gap: 1.15rem; font-weight: 700; transition: transform .2s ease, background .2s ease, color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--solar); color: var(--navy-950); }
.btn-primary:hover { background: #ffd45f; }
.btn-ghost { border: 1px solid rgba(255,255,255,.44); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,.1); }
.hero-trust { display: flex; flex-wrap: wrap; gap: .7rem 1.5rem; list-style: none; padding: 0; margin: 2.1rem 0 0; color: rgba(255,255,255,.68); font-size: .88rem; }
.hero-trust li { display: flex; align-items: center; gap: .55rem; }
.hero-trust li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--solar); }
.solar-orbit { position: absolute; right: -7vw; top: 19%; width: 36vw; height: 36vw; min-width: 430px; min-height: 430px; border: 1px solid rgba(255,200,61,.38); border-radius: 50%; z-index: -1; }
.solar-orbit::after { content: ""; position: absolute; left: 15%; top: 9%; width: 13px; height: 13px; border-radius: 50%; background: var(--solar); box-shadow: 0 0 30px var(--solar); }
.hero-index { position: absolute; right: max(1.5rem, calc((100vw - 1180px) / 2)); bottom: 2.2rem; text-align: right; font: 600 .7rem/1.7 "Manrope", sans-serif; letter-spacing: .2em; color: rgba(255,255,255,.58); }

.section { width: min(1180px, calc(100% - 3rem)); margin: auto; padding: 7.5rem 0; }
.section-heading { max-width: 790px; }
.kicker { color: var(--blue-500); }
h2 { margin: 0; font: 700 clamp(2.4rem, 4.4vw, 4.5rem)/1.05 "Manrope", sans-serif; letter-spacing: -.05em; text-wrap: balance; }
.section-heading > p:last-child { max-width: 650px; margin: 1.4rem 0 0; color: var(--muted); font-size: 1.12rem; }
.service-grid { display: grid; grid-template-columns: 1.18fr 1fr 1fr; gap: 1rem; margin-top: 3.5rem; }
.service-card { min-height: 365px; padding: 2rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: 0 12px 40px rgba(4,17,31,.045); display: flex; flex-direction: column; transition: transform .25s ease, box-shadow .25s ease; }
.service-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.service-card-featured { background: var(--navy-900); color: var(--white); border-color: var(--navy-900); }
.card-top { display: flex; align-items: flex-start; justify-content: space-between; }
.card-top svg { width: 46px; height: 46px; fill: none; stroke: var(--blue-500); stroke-width: 1.45; stroke-linecap: round; stroke-linejoin: round; }
.service-card-featured .card-top svg { stroke: var(--solar); }
.service-number { color: #9aa8b8; font: 700 .72rem/1 "Manrope", sans-serif; letter-spacing: .12em; }
.service-card h3 { margin: 4rem 0 .8rem; font: 700 1.75rem/1.1 "Manrope", sans-serif; letter-spacing: -.035em; }
.service-card p { color: var(--muted); margin: 0; }
.service-card-featured p { color: rgba(255,255,255,.68); }
.card-link { margin-top: auto; padding-top: 1.5rem; display: flex; align-items: center; justify-content: space-between; font-weight: 700; font-size: .9rem; }
.service-card-featured .card-link { color: var(--solar); }

.energy-band { display: grid; grid-template-columns: 1fr 1fr; min-height: 670px; background: var(--navy-950); color: var(--white); }
.energy-visual { position: relative; overflow: hidden; display: grid; place-items: center; border-right: 1px solid rgba(255,255,255,.1); background: radial-gradient(circle at 50% 45%, #123d62 0%, var(--navy-950) 63%); }
.energy-lines { position: absolute; inset: 0; background: repeating-linear-gradient(117deg, transparent 0 38px, rgba(255,255,255,.06) 39px 40px); }
.energy-disc { width: min(34vw, 430px); aspect-ratio: 1; border-radius: 50%; background: var(--solar); box-shadow: 0 0 100px rgba(255,200,61,.25); position: relative; }
.energy-disc::before, .energy-disc::after { content: ""; position: absolute; inset: 16%; border: 1px solid rgba(7,26,47,.27); border-radius: 50%; }
.energy-disc::after { inset: 32%; }
.energy-visual > span { position: absolute; bottom: 2.5rem; font: 600 .66rem/1 "Manrope", sans-serif; letter-spacing: .28em; color: rgba(255,255,255,.58); }
.energy-copy { align-self: center; max-width: 590px; padding: 5rem clamp(2rem, 7vw, 7rem); }
.energy-copy .kicker { color: var(--solar); }
.energy-copy p:not(.kicker) { margin: 1.5rem 0 0; color: rgba(255,255,255,.66); font-size: 1.1rem; }
.text-link { display: inline-flex; gap: 2rem; margin-top: 2rem; color: var(--solar); font-weight: 700; border-bottom: 1px solid rgba(255,200,61,.35); padding-bottom: .35rem; }

.process { display: grid; grid-template-columns: .85fr 1.15fr; gap: clamp(3rem, 8vw, 8rem); }
.process-heading { position: sticky; top: 3rem; align-self: start; }
.process-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--line); }
.process-list li { display: grid; grid-template-columns: 74px 1fr; gap: 1rem; padding: 2rem 0; border-bottom: 1px solid var(--line); }
.step { color: var(--blue-500); font: 800 .8rem/1.5 "Manrope", sans-serif; letter-spacing: .12em; }
.process-list h3 { margin: 0; font: 700 1.45rem/1.2 "Manrope", sans-serif; letter-spacing: -.025em; }
.process-list p { margin: .55rem 0 0; color: var(--muted); }

.about { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem, 7vw, 7rem); align-items: center; padding: 7rem max(1.5rem, calc((100vw - 1180px) / 2)); background: var(--ice); }
.about-copy > p:not(.kicker) { color: var(--muted); max-width: 670px; margin: 1.5rem 0 0; font-size: 1.1rem; }
.about-values { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .7rem; }
.about-values span { padding: .68rem .9rem; background: var(--white); border: 1px solid rgba(22,133,238,.13); border-radius: 999px; font-size: .88rem; color: var(--muted); }
.about-values strong { color: var(--navy-900); }
.about-panel { min-height: 450px; background: var(--navy-900); border-radius: 999px 999px 1.5rem 1.5rem; color: var(--white); display: flex; flex-direction: column; align-items: center; justify-content: center; position: relative; overflow: hidden; box-shadow: var(--shadow); }
.panel-glow { position: absolute; width: 240px; height: 240px; border-radius: 50%; background: var(--solar); filter: blur(70px); opacity: .35; top: -80px; right: -40px; }
.about-panel::after { content: ""; position: absolute; width: 260px; height: 260px; border: 1px solid rgba(255,255,255,.14); border-radius: 50%; }
.about-panel p, .about-panel strong, .about-panel span { position: relative; z-index: 1; margin: 0; }
.about-panel p { font: 800 clamp(2.6rem, 5vw, 4.4rem)/.9 "Manrope", sans-serif; letter-spacing: -.07em; }
.about-panel strong { margin-top: .65rem; color: var(--solar); font: 700 1rem/1 "Manrope", sans-serif; letter-spacing: .55em; padding-left: .55em; }
.about-panel span { position: absolute; bottom: 2rem; font-size: .62rem; letter-spacing: .3em; color: rgba(255,255,255,.55); }

.contact-section { padding: 8rem 1.5rem; text-align: center; color: var(--white); background: var(--blue-500); position: relative; overflow: hidden; }
.contact-section::before { content: ""; position: absolute; inset: -40%; background: repeating-radial-gradient(circle, transparent 0 42px, rgba(255,255,255,.07) 43px 44px); }
.contact-inner { max-width: 880px; margin: auto; position: relative; z-index: 1; }
.contact-inner .kicker { color: var(--solar-soft); }
.contact-inner > p:not(.kicker):not(.contact-note) { margin: 1.25rem auto 0; color: rgba(255,255,255,.8); font-size: 1.12rem; }
.contact-phone { display: flex; justify-content: space-between; align-items: center; width: min(620px, 100%); margin: 2.6rem auto 0; padding: 1.15rem 1.4rem; border-bottom: 2px solid rgba(255,255,255,.62); font: 700 clamp(1.8rem, 4vw, 3.4rem)/1 "Manrope", sans-serif; letter-spacing: -.045em; }
.contact-phone:hover { color: var(--solar); border-color: var(--solar); }
.contact-note { margin: .9rem 0 0; color: rgba(255,255,255,.65); font-size: .84rem; }

.site-footer { padding: 3rem max(1.5rem, calc((100vw - 1180px) / 2)); background: var(--navy-950); color: rgba(255,255,255,.68); display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; }
.brand-light { color: var(--white); }
.footer-brand p { margin: 1rem 0 0; font-size: .9rem; }
.footer-contact { display: flex; gap: 1.5rem; font-weight: 600; font-size: .9rem; }
.footer-contact a:hover { color: var(--solar); }
.copyright { grid-column: 1 / -1; border-top: 1px solid rgba(255,255,255,.1); margin: .8rem 0 0; padding-top: 1.5rem; font-size: .76rem; }

.catalog-page .site-header { position: relative; background: var(--navy-900); }
.catalog-page .batteries { padding-top: 3rem; }
.catalog-page h1 { font: 800 clamp(2.2rem, 6vw, 4rem)/1.12 "Manrope", sans-serif; letter-spacing: -.04em; max-width: 850px; margin: 1rem 0; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: .8rem; font-size: .9rem; color: #526477; margin-bottom: 2.5rem; }
.breadcrumb a { text-decoration: underline; text-underline-offset: .2em; }
.service-card-storage:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 5px; }
.brand:has(.official-logo) { background: transparent; padding: .2rem .6rem; flex-shrink: 0; }
.official-logo { display: block; width: 230px; height: 82px; object-fit: cover; object-position: center 35%; }
@media (max-width: 560px) { .official-logo { width: 180px; height: 64px; } }
.service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .service-grid { grid-template-columns: 1fr; } }
.cistern-body { padding-top: 1.7rem; }
.cistern-body h3 { margin: .5rem 0; font-size: 1.5rem; }
.cistern-body > p:not(.battery-brand) { line-height: 1.7; color: #526477; margin: 1.3rem 0; }
.cistern-components { line-height: 1.9; color: #526477; }
.water-product { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem; align-items: start; margin-top: 2.5rem; }
.water-photo { background: #fff; border: 1px solid #dae5ef; border-radius: 1rem; overflow: hidden; }
.water-photo img { display: block; width: 100%; height: auto; }
.water-details h2 { font-size: 2rem; }
.water-details h3 { font-size: 1.2rem; margin-top: 1.8rem; }
.water-details ul { padding-left: 1.2rem; line-height: 1.8; color: #526477; }
.water-details li + li { margin-top: .4rem; }
.water-details .btn { margin-top: 1.2rem; }
@media (max-width: 900px) { .water-product { grid-template-columns: 1fr; gap: 2rem; } .water-photo { max-width: 560px; } }
.battery-intro { max-width: 720px; line-height: 1.75; color: #526477; margin: 1.4rem 0; }
.battery-group-title { margin: 3rem 0 1.4rem; font-size: 1.5rem; }
.battery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.4rem; }
.battery-card { overflow: hidden; border: 1px solid #dae5ef; border-radius: 1.2rem; background: #fff; display: flex; flex-direction: column; }
.battery-photo { padding: 1.4rem; background: #fff; }
.battery-photo img { display: block; width: 100%; height: 200px; object-fit: contain; }
.battery-body { padding: 0 1.5rem 1.7rem; display: flex; flex-direction: column; flex: 1; }
.battery-brand { font-size: .72rem; font-weight: 800; letter-spacing: .16em; color: #1475c7; margin: 0 0 .5rem; }
.battery-body h4 { font: 800 1.55rem/1.2 "Manrope", sans-serif; margin: 0; color: var(--navy-900); }
.battery-stats { display: flex; flex-wrap: wrap; gap: 1.2rem; margin: 1.3rem 0 0; padding: 1rem 0; border-top: 1px solid #dae5ef; border-bottom: 1px solid #dae5ef; }
.battery-stats dt { font-size: .75rem; color: #526477; }
.battery-stats dd { margin: .25rem 0 0; font-weight: 800; font-size: 1.05rem; }
.battery-body ul { padding-left: 1.1rem; color: #526477; font-size: .9rem; line-height: 1.65; margin: 1.1rem 0 1.6rem; }
.battery-body li + li { margin-top: .45rem; }
.battery-body .text-link { margin-top: auto; font-size: .88rem; }
.battery-note { padding: 1.3rem; background: var(--ice); border-radius: .8rem; margin: 2rem 0 0; color: #526477; font-size: .85rem; line-height: 1.7; }
@media (max-width: 900px) { .battery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .battery-grid { grid-template-columns: 1fr; } }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .reveal { opacity: 1; transform: none; transition: none; } .btn, .service-card { transition: none; } }

@media (max-width: 900px) {
  .site-header { position: absolute; }
  .nav-wrap { width: calc(100% - 2rem); min-height: 74px; }
  .menu-toggle { display: block; }
  .site-nav { position: absolute; top: 74px; left: 1rem; right: 1rem; padding: 1.2rem; background: rgba(4,17,31,.98); border: 1px solid rgba(255,255,255,.12); border-radius: 1rem; display: none; flex-direction: column; align-items: stretch; gap: .2rem; box-shadow: var(--shadow); }
  .site-nav.open { display: flex; }
  .site-nav a { padding: .8rem; }
  .nav-cta { text-align: center; margin-top: .4rem; }
  .hero { min-height: 720px; height: auto; padding: 8rem 0 4rem; }
  .hero-inner, .section { width: calc(100% - 2rem); }
  .hero-inner { margin-top: 0; }
  .hero h1 { font-size: clamp(3rem, 12vw, 5.4rem); }
  .hero-image { background-position: 64% center; }
  .hero-overlay { background: linear-gradient(90deg, rgba(4,17,31,.95), rgba(4,17,31,.58)), linear-gradient(0deg, rgba(4,17,31,.72), transparent 60%); }
  .solar-orbit { right: -240px; top: 26%; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { min-height: 315px; }
  .service-card h3 { margin-top: 2.8rem; }
  .energy-band { grid-template-columns: 1fr; }
  .energy-visual { min-height: 500px; border-right: 0; border-bottom: 1px solid rgba(255,255,255,.1); }
  .energy-disc { width: min(66vw, 390px); }
  .energy-copy { padding: 5rem 1.5rem; }
  .process { grid-template-columns: 1fr; gap: 3rem; }
  .process-heading { position: static; }
  .about { grid-template-columns: 1fr; padding: 6rem 1rem; }
  .about-panel { min-height: 400px; width: min(460px, 100%); margin: auto; }
}

@media (max-width: 560px) {
  .brand-mark { width: 34px; height: 34px; }
  .brand-copy strong { font-size: .95rem; }
  .hero { min-height: 760px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .btn { width: 100%; }
  .hero-trust { display: grid; gap: .6rem; }
  .hero-index { display: none; }
  .section { padding: 5.5rem 0; }
  .energy-visual { min-height: 390px; }
  .process-list li { grid-template-columns: 48px 1fr; }
  .about-panel { min-height: 350px; }
  .site-footer { grid-template-columns: 1fr; }
  .footer-contact { flex-direction: column; gap: .5rem; }
  .copyright { grid-column: 1; }
}