/* RO Water System - responsive industrial water treatment theme */
:root {
  --navy: #082f49;
  --deep: #061f33;
  --blue: #087eae;
  --cyan: #18b6c9;
  --aqua: #dff7f7;
  --ink: #102b3d;
  --muted: #647987;
  --pale: #f3f8fa;
  --white: #fff;
  --line: #dce8ed;
  --shadow: 0 22px 55px rgba(5, 39, 58, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body { margin: 0; font-family: "DM Sans", sans-serif; color: var(--ink); background: #fff; line-height: 1.65; }
a { color: inherit; text-decoration: none; }
img { display: block; width: 100%; object-fit: cover; }
.container { width: min(1160px, calc(100% - 48px)); margin: 0 auto; }
.topbar { background: var(--deep); color: #c9e3ec; font-size: 12px; letter-spacing: .03em; }
.topbar-inner, .top-links { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.topbar-inner { min-height: 38px; }
.top-links { gap: 22px; }
.top-links a:hover { color: #fff; }
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,.96); backdrop-filter: blur(12px); box-shadow: 0 4px 22px rgba(4,40,60,.06); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 86px; gap: 30px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand-mark { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px 14px 14px 4px; color: #fff; background: linear-gradient(145deg, var(--blue), var(--cyan)); font: 800 17px Manrope, sans-serif; letter-spacing: -2px; box-shadow: 0 8px 18px #0b8bb13b; }
.brand-mark span { color: #b9f6ef; }
.brand-name { color: var(--navy); font: 800 15px Manrope, sans-serif; letter-spacing: .03em; line-height: 1.25; }
.brand-name b { color: var(--blue); }
.brand-name small { display: block; margin-top: 4px; color: #7b919d; font: 700 8px "DM Sans", sans-serif; letter-spacing: .17em; }
.main-nav { display: flex; align-items: center; gap: 30px; font-size: 13px; font-weight: 700; color: #415967; }
.main-nav > a:not(.nav-cta):hover, .main-nav > a.active { color: var(--blue); }
.nav-cta { padding: 12px 17px; border-radius: 5px; background: var(--navy); color: white; }
.nav-cta span { margin-left: 8px; color: #71e3e0; }
.menu-toggle { display: none; border: 0; background: none; color: var(--navy); font-size: 26px; cursor: pointer; }
.hero { min-height: 630px; position: relative; display: flex; align-items: center; overflow: hidden; color: white; background: #07344b url("assets/header.jpg") center 48%/cover no-repeat; }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(3,29,48,.96) 0%, rgba(4,43,63,.88) 46%, rgba(3,42,60,.25) 100%); }
.hero-content { position: relative; z-index: 1; padding: 90px 0 105px; }
.eyebrow, .section-kicker { font-size: 10px; font-weight: 800; letter-spacing: .2em; color: var(--blue); }
.eyebrow { display: flex; align-items: center; gap: 10px; color: #9de6e6; }
.eyebrow span { width: 27px; height: 2px; background: var(--cyan); }
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: Manrope, sans-serif; letter-spacing: -.045em; }
.hero h1 { max-width: 750px; margin: 24px 0 20px; font-size: clamp(42px, 6vw, 72px); line-height: 1.08; font-weight: 800; }
h1 em, h2 em { color: #28c1cb; font-style: normal; }
.hero-content > p { max-width: 580px; color: #d1e1e8; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 13px; margin-top: 32px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 22px; min-height: 50px; padding: 0 21px; border: 1px solid transparent; border-radius: 4px; font: 700 12px "DM Sans", sans-serif; cursor: pointer; transition: .2s ease; }
.btn-primary { background: var(--cyan); color: #042b40; }
.btn-primary:hover { background: #70e1dc; transform: translateY(-2px); }
.btn-outline { color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: #ffffff18; }
.hero-points { display: flex; flex-wrap: wrap; gap: 25px; margin-top: 45px; color: #d5e6eb; font-size: 11px; }
.hero-points b { color: #5ee1d9; margin-right: 6px; }
.hero-label { position: absolute; right: 4%; bottom: 45px; display: flex; align-items: center; gap: 12px; color: #d4e8ed; font-size: 9px; letter-spacing: .22em; writing-mode: vertical-rl; }
.label-line { width: 1px; height: 50px; background: #8de2df; }
.trust-strip { background: var(--navy); color: #fff; }
.trust-grid { display: grid; grid-template-columns: repeat(4,1fr); padding: 25px 0; }
.trust-grid > div { display: flex; flex-direction: column; padding: 0 26px; border-right: 1px solid #ffffff24; }
.trust-grid > div:first-child { padding-left: 0; }
.trust-grid > div:last-child { border: 0; }
.trust-grid strong { color: #57d7d5; font: 800 24px Manrope, sans-serif; }
.trust-grid span { color: #c4d8e0; font-size: 11px; }
.section { padding: 105px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 90px; }
.about-visual { position: relative; padding: 0 28px 28px 0; }
.about-visual:before { content: ""; position: absolute; left: 28px; bottom: 0; width: 72%; height: 70%; background: var(--aqua); z-index: 0; }
.about-visual img { position: relative; z-index: 1; height: 430px; border-radius: 3px; box-shadow: var(--shadow); }
.image-note { position: absolute; z-index: 2; right: -10px; bottom: 48px; display: flex; align-items: center; gap: 13px; padding: 17px 20px; background: #fff; box-shadow: var(--shadow); }
.note-icon { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--aqua); color: var(--blue); font-size: 22px; }
.image-note b, .image-note small { display: block; }
.image-note b { font: 700 12px Manrope; }
.image-note small { color: var(--muted); font-size: 10px; }
.about-copy h2, .section-heading h2, .testimonial-wrap h2, .contact-copy h2 { margin: 13px 0 20px; font-size: clamp(32px, 4vw, 47px); line-height: 1.15; }
.about-copy h2 em, .section-heading h2 em, .testimonial-wrap h2 em, .contact-copy h2 em { color: var(--blue); }
.about-copy p { color: var(--muted); font-size: 14px; }
.about-copy .lead { color: #27485b; font-size: 17px; font-weight: 600; line-height: 1.6; }
.text-link { display: inline-flex; gap: 16px; align-items: center; margin-top: 15px; color: var(--blue); font-size: 12px; font-weight: 800; }
.text-link span { transition: transform .2s; }
.text-link:hover span { transform: translateX(5px); }
.services-section { background: var(--pale); }
.section-heading { display: flex; justify-content: space-between; align-items: end; gap: 40px; margin-bottom: 42px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { max-width: 390px; margin-bottom: 5px; color: var(--muted); font-size: 13px; }
.service-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 25px; }
.service-card { display: grid; grid-template-columns: .9fr 1.1fr; min-height: 360px; background: #fff; box-shadow: 0 12px 35px #0c3c5310; }
.service-image { min-height: 100%; overflow: hidden; }
.service-image img { height: 100%; min-height: 360px; transition: transform .5s; }
.service-card:hover .service-image img { transform: scale(1.04); }
.service-body { padding: 30px 27px; }
.service-number { color: var(--blue); font-size: 10px; font-weight: 800; letter-spacing: .15em; }
.service-body h3 { margin: 12px 0; font: 800 21px Manrope; letter-spacing: -.03em; }
.service-body p, .service-body li { color: var(--muted); font-size: 11px; }
.service-body ul { padding-left: 17px; margin: 15px 0; }
.service-body li { padding: 3px 0; }
.process-band { padding: 65px 0; background: linear-gradient(115deg, #06283e, #07516b); color: #fff; }
.process-inner { display: grid; grid-template-columns: .8fr 1.2fr; gap: 55px; align-items: center; }
.section-kicker.light { color: #77d9dc; }
.process-inner h2 { margin: 12px 0 0; font-size: 34px; line-height: 1.2; }
.process-inner h2 em { color: #43d0cf; font-style: normal; }
.process-steps { display: grid; grid-template-columns: repeat(4,1fr); gap: 15px; }
.process-steps > div { padding-left: 14px; border-left: 1px solid #ffffff3b; }
.process-steps span, .process-steps b, .process-steps small { display: block; }
.process-steps span { color: #55d7d5; font: 800 17px Manrope; margin-bottom: 17px; }
.process-steps b { font-size: 12px; }
.process-steps small { margin-top: 5px; color: #b8d0d9; font-size: 10px; }
.projects-section { background: #fff; }
.project-grid { display: grid; grid-template-columns: 1.25fr 1fr 1fr; gap: 18px; }
.project-card { position: relative; min-height: 330px; overflow: hidden; background: var(--navy); }
.project-card:after { content: ""; position: absolute; inset: 30% 0 0; background: linear-gradient(transparent, rgba(2,24,39,.9)); }
.project-card img { position: absolute; inset: 0; height: 100%; transition: transform .6s; }
.project-card:hover img { transform: scale(1.05); }
.project-caption { position: absolute; z-index: 1; left: 24px; right: 20px; bottom: 22px; color: #fff; }
.project-caption span { color: #64e0dc; font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.project-caption h3 { margin: 7px 0 2px; font: 700 18px Manrope; }
.project-caption small { color: #d2e0e5; font-size: 10px; }
.testimonials-section { background: var(--pale); }
.testimonial-wrap { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 100px; }
.testimonial-wrap h2 { margin-bottom: 14px; }
.testimonial-wrap > div:first-child > p { max-width: 360px; color: var(--muted); font-size: 13px; }
.testimonial-card { position: relative; padding: 38px 42px; background: #fff; box-shadow: var(--shadow); }
.quote-mark { color: var(--cyan); font: 800 65px Georgia; line-height: .8; }
.testimonial-card > p { margin: 20px 0 25px; color: #39586a; font: 600 17px/1.7 Manrope; }
.testimonial-person { display: flex; align-items: center; gap: 12px; }
.avatar { display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; background: var(--navy); color: white; font-weight: 800; }
.testimonial-person b, .testimonial-person small { display: block; }
.testimonial-person b { font-size: 11px; }
.testimonial-person small { color: var(--muted); font-size: 10px; }
.review-dots { position: absolute; right: 40px; bottom: 38px; display: flex; gap: 5px; }
.review-dots i { width: 5px; height: 5px; border-radius: 50%; background: #cbd9df; }
.review-dots i:first-child { width: 18px; border-radius: 5px; background: var(--cyan); }
.locations-section { padding: 85px 0; background: var(--deep); color: #fff; }
.location-heading h2 { margin-bottom: 0; }
.location-heading h2 em { color: #43d0cf; }
.location-heading > p { color: #bdd0d8; }
.district-list { display: grid; grid-template-columns: repeat(5,1fr); gap: 10px; }
.district-list a { padding: 10px 13px; border: 1px solid #ffffff25; border-radius: 3px; color: #d8e7eb; font-size: 11px; transition: .2s; }
.district-list a:after { content: " ↗"; float: right; color: #51d5d1; }
.district-list a:hover { border-color: #48d1cf; background: #ffffff0b; color: #fff; }
.contact-grid { display: grid; grid-template-columns: 1fr .85fr; gap: 100px; align-items: start; }
.contact-copy h2 { font-size: clamp(40px,5vw,58px); }
.contact-copy > p { max-width: 430px; color: var(--muted); font-size: 14px; }
.contact-detail { display: flex; gap: 15px; margin-top: 26px; }
.contact-detail > span { display: grid; place-items: center; flex: 0 0 39px; height: 39px; border-radius: 50%; background: var(--aqua); color: var(--blue); font-size: 18px; }
.contact-detail small, .contact-detail b { display: block; }
.contact-detail small { color: var(--blue); font-size: 9px; font-weight: 800; letter-spacing: .15em; }
.contact-detail b { margin-top: 4px; color: #29495b; font-size: 12px; line-height: 1.7; }
.contact-detail a:hover { color: var(--blue); }
.contact-form { padding: 35px; background: var(--pale); border: 1px solid var(--line); }
.contact-form h3 { margin-bottom: 5px; font: 800 23px Manrope; }
.contact-form > p { margin-bottom: 23px; color: var(--muted); font-size: 12px; }
.contact-form label { display: block; margin: 13px 0 6px; color: #345367; font-size: 10px; font-weight: 800; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 12px 13px; border: 1px solid #d7e3e8; border-radius: 3px; outline: none; background: #fff; color: var(--ink); font: 12px "DM Sans", sans-serif; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px #18b6c91a; }
.contact-form textarea { resize: vertical; }
.form-submit { width: 100%; margin-top: 19px; border: 0; }
.form-note { display: block; margin-top: 10px; color: #80939d; font-size: 9px; text-align: center; }
.site-footer { background: #041b2b; color: #c3d4dc; }
.footer-main { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 35px 0; }
.footer-brand .brand-name { color: #fff; }
.footer-main > p { max-width: 350px; margin: 0; color: #9bb2bd; font-size: 11px; }
.back-top { color: #66d9d6; font-size: 11px; font-weight: 700; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding: 17px 0; border-top: 1px solid #ffffff1c; color: #8099a5; font-size: 10px; }
.floating-whatsapp { position: fixed; z-index: 30; right: 22px; bottom: 22px; display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; background: #19bd70; color: #fff; font-size: 28px; box-shadow: 0 8px 25px #052c3b44; }

@media (max-width: 980px) {
  .main-nav { gap: 17px; }
  .about-grid { gap: 50px; }
  .service-card { grid-template-columns: 1fr; }
  .service-image img { height: 220px; min-height: 220px; }
  .process-inner { grid-template-columns: 1fr; gap: 35px; }
  .contact-grid { gap: 50px; }
}
@media (max-width: 760px) {
  .container { width: min(100% - 34px, 560px); }
  .topbar-inner { justify-content: center; min-height: 34px; text-align: center; }
  .topbar-inner > span { font-size: 10px; }
  .top-links { display: none; }
  .nav-wrap { min-height: 72px; }
  .brand-mark { width: 42px; height: 42px; }
  .brand-name { font-size: 13px; }
  .menu-toggle { display: block; }
  .main-nav { position: absolute; top: 72px; left: 0; right: 0; display: none; flex-direction: column; align-items: stretch; gap: 0; padding: 10px 22px 20px; background: #fff; box-shadow: 0 15px 20px #082f4918; }
  .main-nav.open { display: flex; }
  .main-nav > a { padding: 13px 5px; border-bottom: 1px solid #edf2f4; }
  .main-nav .nav-cta { margin-top: 10px; padding: 12px 15px; text-align: center; }
  .hero { min-height: 610px; background-position: 58% center; }
  .hero-overlay { background: linear-gradient(90deg, rgba(3,29,48,.95), rgba(4,43,63,.76)); }
  .hero-content { padding: 75px 0 90px; }
  .hero h1 { font-size: clamp(39px, 11vw, 58px); }
  .hero-content > p { font-size: 14px; }
  .hero-label { display: none; }
  .hero-points { gap: 12px 20px; margin-top: 30px; }
  .trust-grid { grid-template-columns: repeat(2,1fr); gap: 20px 0; }
  .trust-grid > div { padding: 0 14px; }
  .trust-grid > div:nth-child(odd) { padding-left: 0; }
  .trust-grid > div:nth-child(even) { border-right: 0; }
  .section { padding: 72px 0; }
  .about-grid, .testimonial-wrap, .contact-grid { grid-template-columns: 1fr; gap: 45px; }
  .about-visual img { height: 320px; }
  .image-note { right: -2px; bottom: 38px; padding: 12px; }
  .section-heading { display: block; margin-bottom: 30px; }
  .section-heading > p { margin-top: 16px; }
  .service-grid { grid-template-columns: 1fr; }
  .service-card { grid-template-columns: .8fr 1.2fr; }
  .service-image img { height: 100%; min-height: 100%; }
  .service-body { padding: 23px 19px; }
  .service-body h3 { font-size: 18px; }
  .process-band { padding: 55px 0; }
  .process-steps { grid-template-columns: repeat(2,1fr); row-gap: 25px; }
  .project-grid { grid-template-columns: 1fr 1fr; }
  .project-large { grid-column: 1 / -1; }
  .project-card { min-height: 260px; }
  .project-large { min-height: 320px; }
  .testimonial-wrap { gap: 25px; }
  .testimonial-card { padding: 30px 25px 55px; }
  .locations-section { padding: 70px 0; }
  .district-list { grid-template-columns: repeat(2,1fr); }
  .contact-form { padding: 25px 20px; }
  .footer-main { align-items: flex-start; flex-direction: column; }
  .footer-bottom { flex-direction: column; gap: 5px; }
}
@media (max-width: 440px) {
  .service-card { grid-template-columns: 1fr; }
  .service-image img { height: 205px; min-height: 205px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-large { grid-column: auto; }
  .project-card, .project-large { min-height: 280px; }
  .district-list { gap: 7px; }
  .district-list a { padding: 9px 8px; font-size: 10px; }
  .hero-actions .btn { width: 100%; }
}


/* Multi-page inner-page components */
.inner-hero { position: relative; overflow: hidden; padding: 88px 0 72px; color: #fff; background: linear-gradient(105deg, rgba(3,29,48,.97), rgba(5,66,88,.88)), url("https://images.unsplash.com/photo-1530268729831-4b0b9e170218?auto=format&fit=crop&w=1800&q=85") center/cover; }
.inner-hero-content { position: relative; z-index: 1; }
.inner-hero h1 { max-width: 850px; margin: 20px 0 14px; font-size: clamp(38px, 5.5vw, 62px); line-height: 1.1; }
.inner-hero h1 em { color: #42d0ce; font-style: normal; }
.inner-hero p { max-width: 650px; margin-bottom: 22px; color: #d1e3e9; font-size: 15px; }
.breadcrumb { color: #a9c3ce; font-size: 11px; }
.breadcrumb a { color: #70dfda; }
.support-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.support-grid > div { padding: 25px 22px; border: 1px solid var(--line); background: #fff; }
.support-grid span { color: var(--blue); font: 800 22px Manrope; }
.support-grid h3 { margin: 15px 0 8px; font: 800 16px Manrope; }
.support-grid p { margin: 0; color: var(--muted); font-size: 11px; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 38px 42px; background: var(--pale); border-left: 4px solid var(--cyan); }
.cta-panel h2 { margin: 9px 0 6px; font: 800 25px Manrope; }
.cta-panel p { margin: 0; color: var(--muted); font-size: 12px; }
.project-disclaimer { margin-top: 18px; color: #7b8f99; font-size: 10px; }
.map-section { padding: 45px 0; background: var(--pale); }
.map-section h2 { margin: 8px 0; font: 800 25px Manrope; }
.map-section p { margin-bottom: 0; color: var(--muted); font-size: 12px; }
@media (max-width: 760px) {
  .inner-hero { padding: 65px 0 55px; }
  .support-grid { grid-template-columns: repeat(2,1fr); }
  .cta-panel { align-items: flex-start; flex-direction: column; padding: 28px 23px; }
}
@media (max-width: 440px) {
  .support-grid { grid-template-columns: 1fr; }
}


/* VISTA RO Systems supplied brand logo */
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.site-logo { display: block; width: 235px; max-width: 100%; height: 66px; object-fit: contain; object-position: left center; }
.footer-brand .site-logo { width: 220px; height: 62px; }
@media (max-width: 760px) {
  .site-logo { width: 205px; height: 58px; }
  .footer-brand .site-logo { width: 195px; height: 55px; }
}