:root {
  --ink: #10242c;
  --muted: #5b6c73;
  --line: #d8e5e7;
  --water: #0b7c86;
  --water-dark: #064b56;
  --foam: #e8f8f6;
  --sun: #ff7a1a;
  --sun-dark: #d95400;
  --leaf: #2f7d4c;
  --paper: #ffffff;
  --mist: #f6fbfa;
  --deep: #0e2931;
  --shadow: 0 18px 44px rgba(10, 48, 56, 0.14);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  padding-bottom: 0;
}

body.modal-open {
  overflow: hidden;
}

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

a {
  color: inherit;
}

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

.container {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: 12px;
  transform: translateY(-140%);
  background: var(--deep);
  color: white;
  padding: 10px 14px;
  z-index: 30;
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(216, 229, 231, 0.8);
}

.nav-shell {
  min-height: 76px;
  display: flex;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  width: 210px;
}

.brand img {
  width: 100%;
  max-height: 52px;
  object-fit: contain;
}

.desktop-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.desktop-nav a {
  text-decoration: none;
}

.desktop-nav a:hover {
  color: var(--water-dark);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 14px 20px;
  border-radius: 8px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 850;
  line-height: 1.1;
  text-align: center;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--sun);
  color: white;
  box-shadow: 0 12px 24px rgba(255, 122, 26, 0.28);
}

.button-primary:hover {
  background: var(--sun-dark);
}

.button-secondary {
  background: white;
  color: var(--water-dark);
  border-color: var(--line);
}

.button-small {
  min-height: 42px;
  padding: 11px 16px;
  background: var(--water);
  color: white;
  box-shadow: none;
}

.hero {
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(232, 248, 246, 0.96), rgba(255, 255, 255, 0.85)),
    linear-gradient(145deg, rgba(255, 122, 26, 0.12), rgba(11, 124, 134, 0.12));
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  min-height: 690px;
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(360px, 0.97fr);
  align-items: center;
  gap: 54px;
  padding: 72px 0 64px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--water-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(2.55rem, 6vw, 3.5rem);
  line-height: 0.95;
  letter-spacing: 0;
  max-width: 780px;
}

h2 {
  margin: 0;
  font-size: clamp(2rem, 4.4vw, 3.00rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 1.18rem;
  line-height: 1.2;
}

.lead {
  margin: 24px 0 0;
  max-width: 680px;
  color: #344a52;
  font-size: clamp(1.03rem, 2vw, 1.24rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 0;
}

.quick-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  max-width: 660px;
}

.quick-facts li {
  position: relative;
  padding: 13px 14px 13px 38px;
  border: 1px solid rgba(11, 124, 134, 0.22);
  background: rgba(255, 255, 255, 0.62);
  border-radius: 8px;
  color: var(--water-dark);
  font-weight: 800;
}

.quick-facts li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 18px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--sun);
}

.hero-stage {
  position: relative;
  min-height: 580px;
  display: grid;
  place-items: center;
}

.product-frame {
  width: min(100%, 520px);
  aspect-ratio: 0.9 / 1;
  display: grid;
  place-items: end center;
  background:
    radial-gradient(circle at 50% 70%, rgba(255, 122, 26, 0.26), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.88), rgba(232, 248, 246, 0.78));
  border: 1px solid rgba(11, 124, 134, 0.18);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-product {
  width: min(82%, 420px);
  filter: drop-shadow(0 22px 28px rgba(6, 75, 86, 0.16));
}

.water-card {
  position: absolute;
  left: 0;
  bottom: 54px;
  width: min(260px, 58%);
  border-radius: 8px;
  padding: 18px;
  background: var(--deep);
  color: white;
  box-shadow: var(--shadow);
}

.water-card span,
.water-card strong {
  display: block;
}

.water-card span {
  color: #bdebe5;
  font-weight: 700;
  font-size: 0.88rem;
}

.water-card strong {
  margin-top: 3px;
  font-size: 1.32rem;
  line-height: 1.05;
}

.proof-band {
  background: var(--deep);
  color: white;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.proof-grid div {
  min-height: 124px;
  padding: 26px 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.15);
}

.proof-grid div:last-child {
  border-right: 1px solid rgba(255, 255, 255, 0.15);
}

.proof-grid strong {
  display: block;
  font-size: 1.08rem;
}

.proof-grid span {
  display: block;
  margin-top: 7px;
  color: #c7dfe0;
  font-size: 0.94rem;
}

.section {
  padding: 92px 0;
}

.split-grid,
.compare-grid,
.spec-grid,
.faq-grid,
.final-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: 58px;
}

.image-panel {
  min-height: 420px;
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, rgba(232, 248, 246, 0.95), rgba(255, 255, 255, 0.95)),
    repeating-linear-gradient(135deg, rgba(11, 124, 134, 0.08), rgba(11, 124, 134, 0.08) 2px, transparent 2px, transparent 16px);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.image-panel img {
  width: min(84%, 390px);
}

.split-section p:not(.eyebrow),
.compare-section p,
.spec-section p {
  color: var(--muted);
  font-size: 1.03rem;
}

.use-list {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.use-list article {
  padding: 22px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.section-heading {
  width: min(760px, 100%);
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading p:not(.eyebrow) {
  color: var(--muted);
  font-size: 1.02rem;
}

.narrow {
  width: min(660px, 100%);
}

.feature-section {
  background: var(--mist);
  border-block: 1px solid var(--line);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.feature-card,
.price-card,
.review-card,
.steps article {
  border: 1px solid var(--line);
  background: white;
  border-radius: 8px;
  box-shadow: 0 12px 30px rgba(10, 48, 56, 0.08);
}

.feature-card {
  padding: 24px;
  min-height: 274px;
}

.feature-card img {
  width: 58px;
  height: 58px;
  object-fit: contain;
  margin-bottom: 18px;
}

.feature-card p {
  margin: 10px 0 0;
  color: var(--muted);
}

.how-section {
  background: linear-gradient(180deg, #ffffff, #f7fbfb);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.steps article {
  padding: 28px;
}

.steps span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 18px;
  border-radius: 50%;
  background: var(--foam);
  color: var(--water-dark);
  font-weight: 900;
}

.steps p {
  margin: 10px 0 0;
  color: var(--muted);
}

.compare-section {
  background: var(--deep);
  color: white;
}

.compare-section .eyebrow,
.compare-section p {
  color: #beeae6;
}

.table-wrap {
  overflow-x: auto;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
  background: white;
  color: var(--ink);
}

th,
td {
  padding: 16px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

th {
  background: var(--foam);
  color: var(--water-dark);
  font-size: 0.92rem;
}

td:nth-child(2) {
  color: var(--leaf);
  font-weight: 900;
}

.spec-grid {
  align-items: start;
}

.spec-list {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.spec-list div {
  padding: 18px;
  background: var(--mist);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.spec-list dt {
  color: var(--water-dark);
  font-weight: 900;
}

.spec-list dd {
  margin: 5px 0 0;
  color: var(--muted);
}

.packages {
  background:
    linear-gradient(180deg, rgba(232, 248, 246, 0.86), rgba(255, 255, 255, 0.95));
  border-block: 1px solid var(--line);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.price-card {
  position: relative;
  padding: 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  min-height: 508px;
}

.price-card.featured {
  border-color: var(--sun);
  box-shadow: 0 18px 42px rgba(255, 122, 26, 0.2);
}

.price-card.best-deal {
  border-color: var(--water);
}

.ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--deep);
  color: white;
  font-size: 0.72rem;
  font-weight: 900;
  text-transform: uppercase;
}

.pack-image {
  height: 182px;
  margin: 22px 0 8px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.pack-image img {
  width: 90px;
  max-height: 172px;
  object-fit: contain;
  margin: 0 -12px;
  filter: drop-shadow(0 12px 14px rgba(10, 48, 56, 0.14));
}

.pack-image.one img {
  width: 122px;
}

.pack-image.four img {
  width: 78px;
  margin: 0 -14px;
}

.saving {
  margin: 10px 0 0;
  color: var(--sun-dark);
  font-weight: 900;
  text-transform: uppercase;
}

.was {
  margin: 7px 0 -5px;
  color: var(--muted);
}

.price {
  margin: 4px 0 22px;
  font-size: 2.45rem;
  line-height: 1;
  font-weight: 950;
  color: var(--water-dark);
}

.price-card .button {
  margin-top: auto;
  width: 100%;
}

.guarantee {
  background: white;
}

.guarantee-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
  padding: 42px;
  background:
    linear-gradient(90deg, rgba(14, 41, 49, 0.95), rgba(6, 75, 86, 0.92)),
    linear-gradient(135deg, rgba(255, 122, 26, 0.28), transparent);
  color: white;
  border-radius: 8px;
}

.guarantee-box .eyebrow {
  color: #ffd9bf;
}

.guarantee-box p:not(.eyebrow) {
  color: #d8eeee;
  max-width: 800px;
}

.reviews {
  background: var(--mist);
  border-block: 1px solid var(--line);
}

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.review-card {
  overflow: hidden;
}

.review-card img {
  width: 100%;
  aspect-ratio: 1.2 / 1;
  object-fit: cover;
}

.review-card div {
  padding: 24px;
}

.review-card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.review-card strong {
  color: var(--water-dark);
}

.review-card-text {
  display: grid;
  align-items: center;
  background:
    linear-gradient(180deg, white, rgba(232, 248, 246, 0.88));
}

.faq-grid {
  align-items: start;
}

.faq-grid > div:first-child img {
  width: min(100%, 340px);
  margin-top: 28px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  box-shadow: 0 10px 24px rgba(10, 48, 56, 0.06);
}

summary {
  cursor: pointer;
  padding: 18px 22px;
  color: var(--water-dark);
  font-weight: 900;
}

details p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--muted);
}

.final-cta {
  padding: 64px 0;
  background:
    linear-gradient(90deg, var(--foam), rgba(255, 255, 255, 0.94));
  border-top: 1px solid var(--line);
}

.final-grid {
  grid-template-columns: 1fr auto;
}

.site-footer {
  background: #10242c;
  color: white;
  padding: 50px 0 92px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 42px;
  align-items: start;
}

.footer-brand {
  width: 170px;
  filter: brightness(0) invert(1);
}

.site-footer p {
  max-width: 620px;
  color: #c4d7da;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 18px;
  max-width: 430px;
}

.footer-links button {
  color: #e8f8f6;
  background: transparent;
  border: 0;
  padding: 0;
  font: inherit;
  font-weight: 700;
  text-decoration: underline;
  cursor: pointer;
}

.copyright {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
  color: #b9cccf;
  font-size: 0.92rem;
}

.mobile-sticky-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 18;
  display: none;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--sun);
  color: white;
  text-decoration: none;
  font-weight: 950;
  box-shadow: 0 14px 28px rgba(16, 36, 44, 0.22);
}

.modal-layer,
.exit-layer {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(10, 25, 30, 0.68);
}

.modal-layer[hidden],
.exit-layer[hidden] {
  display: none;
}

.modal-box,
.exit-box {
  position: relative;
  width: min(720px, 100%);
  max-height: min(720px, 90vh);
  overflow: auto;
  border-radius: 8px;
  background: white;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.35);
}

.modal-box {
  padding: 34px;
}

.modal-body {
  color: var(--muted);
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: white;
  color: var(--ink);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
}

.exit-box {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(0, 1.2fr);
  gap: 20px;
  align-items: center;
  padding: 28px;
}

.exit-box img {
  width: min(100%, 260px);
  margin: 0 auto;
  filter: drop-shadow(0 16px 20px rgba(10, 48, 56, 0.18));
}

.noscript-note {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 60;
  padding: 12px 14px;
  background: #fff4e6;
  border: 1px solid #ffc36b;
  color: #5a2d00;
}

:focus-visible {
  outline: 3px solid rgba(255, 122, 26, 0.8);
  outline-offset: 3px;
}

@media (max-width: 1020px) {
  .hero-grid,
  .split-grid,
  .compare-grid,
  .spec-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

  .hero-grid {
    min-height: auto;
    padding-top: 48px;
  }

  .hero-stage {
    min-height: 500px;
  }

  .feature-grid,
  .pricing-grid,
  .proof-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .review-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .price-card {
    min-height: 470px;
  }
}

@media (max-width: 760px) {
  body {
    padding-bottom: 76px;
  }

  .container {
    width: min(100% - 24px, 1160px);
  }

  .nav-shell {
    min-height: 66px;
  }

  .brand {
    width: 168px;
  }

  .desktop-nav,
  .site-header .button {
    display: none;
  }

  .hero-grid {
    gap: 28px;
    padding: 38px 0 42px;
  }

  h1 {
    font-size: clamp(2.4rem, 13vw, 4.4rem);
  }

  h2 {
    font-size: clamp(1.85rem, 9vw, 2.8rem);
  }

  .hero-actions .button,
  .button {
    width: 100%;
  }

  .quick-facts,
  .use-list,
  .feature-grid,
  .pricing-grid,
  .proof-grid,
  .spec-list,
  .footer-grid,
  .final-grid,
  .guarantee-box {
    grid-template-columns: 1fr;
  }

  .proof-grid div,
  .proof-grid div:last-child {
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
  }

  .section {
    padding: 64px 0;
  }

  .hero-stage {
    min-height: 420px;
  }

  .product-frame {
    width: min(100%, 390px);
  }

  .water-card {
    left: 8px;
    bottom: 24px;
    width: min(250px, 78%);
  }

  .image-panel {
    min-height: 320px;
  }

  .guarantee-box {
    padding: 28px;
  }

  .footer-links {
    justify-content: flex-start;
  }

  .mobile-sticky-cta {
    display: flex;
  }

  .exit-box {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

@media (max-width: 420px) {
  .pack-image img {
    width: 80px;
    margin: 0 -13px;
  }

  .pack-image.four img {
    width: 66px;
  }

  .modal-box,
  .exit-box {
    padding: 22px;
  }
}