/* ---------- Base ---------- */
:root {
  --navy: #163A52;
  --navy-dark: #0F2A3D;
  --teal: #4FA0D0;
  --teal-light: #EAF4FA;
  --ink: #1E2B33;
  --muted: #47555F;
  --bg: #FBFDFE;
  --white: #FFFFFF;
  --border: #E2EAEF;
  --shadow: 0 12px 30px rgba(22, 58, 82, 0.10);
  --radius: 16px;
  --font: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

h1, h2, h3, h4 { font-weight: 600; color: var(--navy); margin: 0 0 0.5em; line-height: 1.25; }
h1 { font-size: 1.9rem; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.12rem; }

p { margin: 0 0 1em; color: var(--muted); }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--navy);
  color: #fff;
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--teal);
  color: var(--navy-dark);
}
.btn-primary:hover { background: #3f90c2; transform: translateY(-1px); box-shadow: 0 8px 20px rgba(79,160,208,0.35); }
.btn-ghost {
  background: transparent;
  border-color: rgba(255,255,255,0.65);
  color: #fff;
}
.btn-ghost:hover { background: rgba(255,255,255,0.12); }
.btn-ghost-navy {
  background: transparent;
  border-color: var(--navy);
  color: var(--navy);
}
.btn-ghost-navy:hover { background: var(--navy); color: #fff; }
.btn-lg { padding: 13px 26px; font-size: 0.98rem; }

.section-cta { text-align: center; margin-top: 48px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(6px);
  transition: box-shadow 0.2s ease;
}
.site-header.scrolled { box-shadow: 0 4px 18px rgba(22,58,82,0.10); }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 88px;
  gap: 24px;
}

.logo-link { display: flex; align-items: center; flex-shrink: 0; background: none; }
.logo-img {
  height: 58px;
  width: auto;
  background: none;
  border: none;
  display: block;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
  flex: 1;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-left: auto;
}
.main-nav a {
  font-weight: 500;
  color: var(--navy);
  font-size: 1.15rem;
  position: relative;
  padding: 6px 0;
}
.main-nav a:hover { color: var(--teal); }
.main-nav .nav-cta { padding: 11px 22px; }
.main-nav .nav-cta:hover { color: var(--navy-dark); }

.header-actions { display: flex; align-items: center; gap: 16px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span { display: block; height: 2px; background: var(--navy); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) brightness(0.96);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,42,64,0.58) 0%, rgba(11,42,64,0.52) 45%, rgba(11,42,64,0.72) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 88px;
  max-width: 720px;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 1rem;
  font-weight: 600;
  color: var(--teal);
  margin-bottom: 18px;
}
.hero h1 {
  color: #fff;
  font-size: clamp(1.95rem, 3.8vw, 2.85rem);
  margin-bottom: 16px;
}
.hero-sub {
  color: rgba(255,255,255,0.92);
  font-size: 1rem;
  max-width: 540px;
  margin-bottom: 26px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.btn-hero { padding: 15px 32px; font-size: 1.05rem; }

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 30px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.22);
}
.hero-trust .trust-item {
  color: rgba(255,255,255,0.92);
  font-size: 0.88rem;
  font-weight: 600;
}
.hero-trust .trust-icon { font-size: 1.05rem; }

.scroll-cue {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 16px;
}
.scroll-cue span {
  display: block;
  width: 4px;
  height: 8px;
  background: #fff;
  border-radius: 2px;
  margin: 8px auto 0;
  animation: scrollcue 1.8s ease-in-out infinite;
}
@keyframes scrollcue {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

/* ---------- Section basics ---------- */
section { padding: 76px 0; position: relative; }
.products, .next-steps, .faq { background: var(--white); }
.installs, .founder, .contact { background: var(--teal-light); }
.section-head { max-width: 620px; margin: 0 auto 40px; text-align: center; }
.section-head h2 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); }
.section-head.small { margin-bottom: 28px; }
.section-head.light h2, .section-head.light p { color: #fff; }
.section-head.light p { color: rgba(255,255,255,0.82); }

/* ---------- Why it matters ---------- */
.why {
  background: var(--teal-light);
  overflow: hidden;
  position: relative;
}
.wave-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  pointer-events: none;
}
.wave-bg svg { width: 200%; height: 100%; fill: rgba(79,160,208,0.18); animation: wavedrift 22s linear infinite; }
@keyframes wavedrift {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.why .container { position: relative; z-index: 1; }
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.why-grid-4 { grid-template-columns: repeat(2, 1fr); }
.why-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px 24px;
  box-shadow: var(--shadow);
}
.why-icon { font-size: 2.7rem; margin-bottom: 10px; }
.why-card h3 { font-size: 1.4rem; }
.why-card p { margin: 0; font-size: 0.92rem; line-height: 1.55; }

.why-closing {
  max-width: 620px;
  margin: 36px auto 0;
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid rgba(22, 58, 82, 0.12);
}
.why-closing h3 { font-size: 1.15rem; }
.why-closing p { font-size: 0.95rem; margin-bottom: 20px; }
.why-closing .btn {
  white-space: normal;
  max-width: 100%;
  text-align: center;
  line-height: 1.3;
}

/* ---------- Products ---------- */
.products-intro {
  max-width: 720px;
  margin: -12px auto 32px;
  text-align: center;
  font-size: 0.94rem;
}
.product-feature-list { display: flex; flex-direction: column; gap: 52px; margin-bottom: 56px; }
.product-feature {
  display: grid;
  grid-template-columns: 0.85fr 1fr;
  gap: 44px;
  align-items: center;
}
.product-feature.reverse { grid-template-columns: 1fr 0.85fr; }
.product-feature.reverse .product-feature-media { order: 2; }
.product-feature.reverse .product-feature-copy { order: 1; }

.product-feature-media {
  background: linear-gradient(160deg, #F3F9FC, #E4F1F8);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 260px;
  box-shadow: var(--shadow);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.product-feature-media:hover {
  transform: translateY(-6px);
  box-shadow: 0 22px 48px rgba(22, 58, 82, 0.18);
}
.product-feature-media img { width: 100%; height: 100%; object-fit: contain; padding: 22px; }

.product-feature-copy h3 { font-size: 1.32rem; margin-bottom: 0.4em; }
.product-feature-copy p { font-size: 0.95rem; }
.benefit-list {
  list-style: none;
  margin: 0 0 20px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.benefit-list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.92rem;
  color: var(--ink);
}
.benefit-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--navy);
  border-bottom: 2px solid var(--teal);
  padding-bottom: 2px;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.card-cta:hover { color: var(--teal); }
.card-cta.small { font-size: 0.86rem; margin-top: 14px; }

.badge {
  display: inline-block;
  background: var(--teal);
  color: var(--navy-dark);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 7px 16px;
  border-radius: 999px;
  margin-bottom: 14px;
  box-shadow: 0 6px 16px rgba(79, 160, 208, 0.4);
}

.reveal {
  opacity: 0;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal.is-visible { opacity: 1; transform: translateX(0); }

.secondary-products { border-top: 1px solid var(--border); padding-top: 40px; }
.secondary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 22px;
}
.secondary-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}
.secondary-card:hover { box-shadow: 0 18px 38px rgba(22,58,82,0.14); transform: translateY(-5px); }
.secondary-card img {
  height: 120px;
  margin: 0 auto 14px;
  object-fit: contain;
}
.secondary-card h4 { font-size: 1.02rem; margin-bottom: 8px; }
.secondary-card p { font-size: 0.88rem; margin: 0; }
.secondary-card .card-cta.small { margin-top: auto; padding-top: 14px; }

/* ---------- Steps ---------- */
.steps {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.next-steps-grid { grid-template-columns: repeat(4, 1fr); }
.step { text-align: center; padding: 0 12px; }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.08rem; }
.step p { font-size: 0.92rem; }
.next-steps-grid .step h3 { font-size: 1.55rem; }

/* ---------- Installations ---------- */
.install-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.install-photo {
  margin: 0;
}
.install-photo-btn {
  display: block;
  width: 100%;
  padding: 0;
  border: none;
  background: none;
  cursor: zoom-in;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  aspect-ratio: 4 / 5;
}
.install-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.install-photo-btn:hover img { transform: scale(1.03); }
.install-photo figcaption {
  margin-top: 12px;
  text-align: center;
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--navy);
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(15,42,61,0.92);
}
.lightbox[hidden] { display: none; }
.lightbox-figure { margin: 0; max-width: 900px; width: 100%; }
.lightbox-figure img {
  width: 100%;
  height: auto;
  max-height: 78vh;
  object-fit: contain;
  border-radius: 12px;
  margin: 0 auto;
}
.lightbox-figure figcaption {
  color: #fff;
  text-align: center;
  margin-top: 16px;
  font-weight: 600;
}
.lightbox-close {
  position: absolute;
  top: 24px;
  right: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.14);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
}
.lightbox-close:hover { background: rgba(255,255,255,0.24); }

/* ---------- FAQ ---------- */
.faq-inner { max-width: 820px; }
.faq-list { display: flex; flex-direction: column; gap: 4px; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px 22px;
}
.faq-item + .faq-item { margin-top: 12px; }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 16px 34px 16px 0;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary h3 { margin: 0; font-size: 1.08rem; color: var(--navy); padding-right: 30px; }
.faq-item summary::before,
.faq-item summary::after {
  content: '';
  position: absolute;
  right: 3px;
  top: 50%;
  background: var(--teal);
  transition: transform 0.32s ease;
}
.faq-item summary::before {
  width: 14px;
  height: 2px;
  transform: translateY(-50%);
}
.faq-item summary::after {
  width: 2px;
  height: 14px;
  transform: translate(-6px, -50%);
}
.faq-item[open] summary::after { transform: translate(-6px, -50%) scaleY(0); }
.faq-item p {
  padding-bottom: 18px;
  margin: 0;
  font-size: 0.96rem;
  overflow: hidden;
  height: 0;
  transition: height 0.32s ease;
}

/* ---------- Founder / About ---------- */
.founder-inner {
  display: grid;
  grid-template-columns: 0.4fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 40px;
}
.founder-avatar {
  width: 136px;
  height: 136px;
  border-radius: 50%;
  background: linear-gradient(160deg, var(--teal), var(--navy));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 auto;
  box-shadow: var(--shadow);
}
.eyebrow-dark { color: var(--teal); }
.founder-copy h2 { font-size: clamp(1.5rem, 2.4vw, 1.9rem); }
.founder-sign { color: var(--navy); font-weight: 600; margin-bottom: 0; }

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.about-item {
  padding: 22px 20px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--border);
}
.about-item h3 { font-size: 1.02rem; color: var(--teal-dark, var(--navy)); }
.about-item p { font-size: 0.9rem; margin: 0; }

/* ---------- Page banner (subpages) ---------- */
.page-banner {
  background: linear-gradient(160deg, var(--navy-dark), var(--navy));
  color: #fff;
  padding: 140px 0 56px;
  text-align: center;
}
.page-banner .eyebrow { justify-content: center; }
.page-banner h1 { color: #fff; font-size: clamp(1.85rem, 3vw, 2.4rem); margin-bottom: 12px; }
.page-banner p { color: rgba(255,255,255,0.82); max-width: 560px; margin: 0 auto; font-size: 0.98rem; }

/* ---------- Legal pages ---------- */
.legal-page { min-height: 50vh; }
.legal-inner { max-width: 700px; }
.legal-inner p { font-size: 1.02rem; margin-bottom: 22px; }
.legal-inner h2 { font-size: 1.28rem; margin-top: 2em; }
.legal-inner > p:first-of-type { margin-top: 0; }
.legal-inner .legal-address { font-size: 1.02rem; color: var(--muted); margin-bottom: 28px; }
.legal-inner .legal-address a { color: var(--navy); font-weight: 500; }
.legal-inner .legal-address a:hover { color: var(--teal); }
.legal-inner .card-cta { margin-top: 12px; }

/* ---------- Service area ---------- */
.service-area {
  background: var(--navy);
  color: #fff;
}
.city-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 14px;
  max-width: 780px;
  margin: 0 auto;
}
.city-list li {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.92rem;
}

/* ---------- Water Quality ---------- */
.water-quality { background: var(--teal-light); }
.water-quality-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.water-quality-icon { font-size: 1.9rem; margin-bottom: 12px; }
.water-quality-inner h2 { font-size: clamp(1.7rem, 2.8vw, 2.2rem); }
.water-quality-inner p { font-size: 0.96rem; margin-bottom: 22px; }
.water-quality-inner .btn {
  white-space: normal;
  max-width: 100%;
  text-align: center;
  line-height: 1.3;
}

/* ---------- Contact ---------- */
.contact { padding-top: 108px; }
.contact-inner { max-width: 640px; }
.contact-page .contact-inner { max-width: 980px; }
.contact-microcopy {
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 400;
  margin: -20px 0 28px;
}
.contact-page.contact { padding-top: 0; }
.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-details-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-details-list a, .contact-details-list li { color: var(--ink); font-size: 1.05rem; font-weight: 500; }
.contact-details-list a:hover { color: var(--teal); }
.contact-details-list .footer-contact-note { color: var(--muted); font-weight: 400; font-size: 0.92rem; line-height: 1.5; }
.quote-form {
  background: #fff;
  border-radius: 20px;
  padding: 32px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}
.form-row { margin-bottom: 16px; display: flex; flex-direction: column; }
.form-row-half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-row-half > div { display: flex; flex-direction: column; }
label { font-weight: 600; font-size: 0.9rem; color: var(--navy); margin-bottom: 7px; }
input, textarea {
  font-family: var(--font);
  padding: 13px 15px;
  border-radius: 10px;
  border: 1.5px solid var(--border);
  font-size: 0.98rem;
  color: var(--ink);
  background: #FBFDFE;
  transition: border-color 0.15s ease;
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--teal);
}
.quote-form .btn { width: 100%; margin-top: 4px; }
.form-status {
  margin-top: 14px;
  margin-bottom: 0;
  font-weight: 600;
  font-size: 0.92rem;
  text-align: center;
  min-height: 1.2em;
}
.form-status.success { color: #1E7A46; }
.form-status.error { color: #B3372E; }
.form-privacy-note {
  margin: 12px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.5;
}
.form-privacy-note a { color: var(--navy); text-decoration: underline; }
.form-privacy-note a:hover { color: var(--teal); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-dark);
  color: rgba(255,255,255,0.75);
  padding: 44px 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.14);
  margin-bottom: 24px;
}
.footer-logo { height: 28px; width: auto; filter: brightness(0) invert(1); opacity: 0.92; }
.footer-tagline { font-size: 0.88rem; color: rgba(255,255,255,0.6); margin: 14px 0 0; max-width: 280px; }
.footer-col h4 {
  color: #fff;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}
.footer-nav { display: flex; flex-direction: column; gap: 11px; }
.footer-nav a { font-size: 0.92rem; color: rgba(255,255,255,0.78); }
.footer-nav a:hover { color: var(--teal); }
.footer-contact { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.footer-contact a, .footer-contact li { font-size: 0.92rem; color: rgba(255,255,255,0.78); }
.footer-contact a:hover { color: var(--teal); }
.footer-contact-note { font-size: 0.82rem; color: rgba(255,255,255,0.55); font-weight: 400; line-height: 1.5; }
.footer-social { margin-top: 20px; }
.footer-social-label { font-size: 0.88rem; color: #fff; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 12px; }
.footer-social-icons { display: flex; gap: 12px; }
.footer-social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.78);
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease;
}
.footer-social-icons a svg { width: 18px; height: 18px; }
.footer-social-icons a:hover { background: var(--teal); color: #fff; transform: translateY(-2px); }
.footer-copy { font-size: 0.82rem; color: rgba(255,255,255,0.65); text-align: center; margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .why-grid, .about-grid { grid-template-columns: repeat(2, 1fr); }
  .install-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: 1fr; gap: 28px; }
  .next-steps-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .product-feature, .product-feature.reverse {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .product-feature.reverse .product-feature-media,
  .product-feature .product-feature-media { order: 1; }
  .product-feature.reverse .product-feature-copy,
  .product-feature .product-feature-copy { order: 2; }
  .product-feature-media { min-height: 220px; }
  .founder-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .header-inner { height: 88px; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .site-header.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 88px;
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    gap: 18px;
    box-shadow: 0 12px 20px rgba(22,58,82,0.12);
    max-height: calc(100vh - 88px);
    overflow-y: auto;
  }
  .site-header.nav-open .nav-links { display: flex; flex-direction: column; align-items: stretch; gap: 4px; margin: 0; }
  .site-header.nav-open .main-nav a { font-size: 1.05rem; padding: 10px 0; }
  .site-header.nav-open .main-nav .nav-cta { text-align: center; margin-top: 6px; }
  .logo-img { height: 53px; }
}

@media (max-width: 760px) {
  .hero-content { padding-top: 88px; }
  section { padding: 56px 0; }
  .contact { padding-top: 76px; }
  .section-head { margin-bottom: 28px; }
  .why-grid, .about-grid, .secondary-grid, .install-grid, .next-steps-grid { grid-template-columns: 1fr; }
  .form-row-half { grid-template-columns: 1fr; gap: 0; }
  .quote-form { padding: 24px 20px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; text-align: center; }
  .hero-trust { flex-direction: column; gap: 10px; }
  .city-list { gap: 10px; }
  .footer-grid { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { grid-column: auto; }
  .footer-tagline { margin-left: auto; margin-right: auto; }
  .footer-nav, .footer-contact { align-items: center; }
  input, textarea { font-size: 16px; padding: 14px 15px; }
  .btn-lg { padding: 14px 26px; font-size: 0.98rem; }
  .btn-hero { padding: 14px 26px; font-size: 1rem; }
}

@media (max-width: 420px) {
  .logo-img { height: 48px; }
  .header-inner { gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .wave-bg svg, .scroll-cue span { animation: none; }
}