:root {
  --ink: #24333a;
  --muted: #5d7077;
  --paper: #fffaf2;
  --cream: #f4eadb;
  --teal: #0f6d73;
  --teal-dark: #08494f;
  --coral: #ef735d;
  --coral-dark: #c84e3b;
  --sun: #f8c95f;
  --line: rgba(36, 51, 58, 0.14);
  --shadow: 0 18px 40px rgba(36, 51, 58, 0.14);
  --radius: 8px;
  --max: 1120px;
}

* {
  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;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 250, 242, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.nav-wrap {
  width: min(100% - 32px, var(--max));
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  letter-spacing: 0;
  color: var(--teal-dark);
}

.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--paper);
  background: var(--teal);
  border-radius: 50%;
  font-weight: 900;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 13px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 800;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--teal-dark);
  background: rgba(15, 109, 115, 0.1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 999px;
}

.hero {
  min-height: calc(82svh - 76px);
  display: grid;
  align-items: center;
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(8, 43, 48, 0.86), rgba(8, 43, 48, 0.48) 43%, rgba(8, 43, 48, 0.04) 74%),
    url("../images/hero-cat-sunglasses.png") center right / cover no-repeat;
}

.hero-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  padding: 72px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--sun);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero h1,
.page-hero h1 {
  max-width: 680px;
  margin: 0;
  font-size: clamp(2.6rem, 7vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

.hero p,
.page-hero p {
  max-width: 580px;
  margin: 20px 0 0;
  font-size: clamp(1.05rem, 2vw, 1.28rem);
}

.hero-actions,
.section-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: 2px solid transparent;
  border-radius: 999px;
  background: var(--coral);
  color: #ffffff;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

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

.button.secondary {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.72);
}

.button.secondary:hover {
  background: rgba(255, 255, 255, 0.22);
}

.button.dark {
  background: var(--teal);
}

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

.button.light {
  color: var(--teal-dark);
  background: #ffffff;
  border-color: var(--line);
}

.button.light:hover {
  background: var(--cream);
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: var(--cream);
}

.section.teal {
  color: #ffffff;
  background: var(--teal-dark);
}

.section-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(260px, 0.55fr);
  align-items: end;
  gap: 32px;
  margin-bottom: 34px;
}

.section-heading h2,
.split h2,
.card h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: 0;
}

.section-heading p,
.split p,
.card p {
  margin: 0;
  color: var(--muted);
}

.teal .section-heading p,
.teal .split p {
  color: rgba(255, 255, 255, 0.74);
}

.feature-grid,
.product-grid,
.safety-grid,
.faq-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card,
.metric,
.option,
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(36, 51, 58, 0.07);
}

.card,
.option,
.faq-item {
  padding: 24px;
}

.card h3,
.option h3,
.faq-item h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  line-height: 1.2;
}

.card p,
.option p,
.faq-item p {
  margin: 0;
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  margin-bottom: 18px;
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--teal-dark);
  background: rgba(15, 109, 115, 0.1);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  align-items: center;
  gap: 44px;
}

.split.reverse {
  grid-template-columns: minmax(320px, 1.05fr) minmax(0, 0.95fr);
}

.product-photo {
  overflow: hidden;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.product-photo img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.check-list,
.spec-list {
  display: grid;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.check-list li,
.spec-list li {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.check-list li::before,
.spec-list li::before {
  content: "";
  width: 14px;
  height: 14px;
  margin-top: 5px;
  border: 4px solid var(--coral);
  border-radius: 50%;
  background: var(--paper);
}

.page-hero {
  color: #ffffff;
  background:
    linear-gradient(90deg, rgba(8, 73, 79, 0.94), rgba(15, 109, 115, 0.78)),
    var(--teal);
}

.page-hero .section-inner {
  padding: 68px 0;
}

.page-hero.natural {
  background:
    linear-gradient(90deg, rgba(8, 43, 48, 0.88), rgba(8, 43, 48, 0.62), rgba(8, 43, 48, 0.34)),
    url("../images/hero-cat-sunglasses.png") center right / cover no-repeat;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  color: var(--teal-dark);
  background: rgba(15, 109, 115, 0.1);
  font-size: 0.86rem;
  font-weight: 900;
}

.teal .pill,
.page-hero .pill {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
}

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

.metric {
  padding: 22px;
}

.metric strong {
  display: block;
  color: var(--teal);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  line-height: 1;
}

.metric span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-weight: 800;
}

.color-dot {
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 8px;
  border-radius: 50%;
  vertical-align: -2px;
  box-shadow: 0 0 0 2px #ffffff, 0 0 0 3px var(--line);
}

.dot-coral {
  background: var(--coral);
}

.dot-teal {
  background: var(--teal);
}

.dot-graphite {
  background: #5d6468;
}

.price-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius);
  color: #ffffff;
  background: var(--teal-dark);
}

.price-band h2,
.price-band p {
  margin: 0;
}

.price-band p {
  color: rgba(255, 255, 255, 0.76);
}

.price {
  color: var(--sun);
  font-size: clamp(2rem, 5vw, 3.3rem);
  font-weight: 900;
}

.price-band > div:last-child {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 16px;
}

.timeline {
  display: grid;
  gap: 16px;
  counter-reset: steps;
}

.timeline-item {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.timeline-item::before {
  counter-increment: steps;
  content: counter(steps);
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #ffffff;
  background: var(--coral);
  font-weight: 900;
}

.timeline-item h3 {
  margin: 0 0 6px;
}

.timeline-item p {
  margin: 0;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(320px, 1fr);
  gap: 34px;
  align-items: start;
}

.contact-panel,
.form-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 8px 22px rgba(36, 51, 58, 0.07);
}

.contact-panel {
  padding: 28px;
}

.contact-panel h2,
.form-panel h2 {
  margin: 0 0 14px;
  font-size: 1.6rem;
}

.contact-panel p {
  margin: 0 0 18px;
  color: var(--muted);
}

.contact-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.contact-list a {
  color: var(--teal-dark);
  font-weight: 900;
}

.form-panel {
  padding: 28px;
}

form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 900;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  color: var(--ink);
  background: #ffffff;
  font: inherit;
}

textarea {
  min-height: 128px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(239, 115, 93, 0.26);
  border-color: var(--coral);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-note,
.success-message {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.success-message {
  display: none;
  padding: 12px 14px;
  border: 1px solid rgba(15, 109, 115, 0.2);
  border-radius: var(--radius);
  color: var(--teal-dark);
  background: rgba(15, 109, 115, 0.08);
  font-weight: 800;
}

.success-message.is-visible {
  display: block;
}

.site-footer {
  padding: 34px 0;
  color: rgba(255, 255, 255, 0.72);
  background: #18262b;
}

.footer-inner {
  width: min(100% - 32px, var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-inner a {
  color: #ffffff;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    display: none;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: grid;
  }

  .site-nav a {
    border-radius: 8px;
  }

  .hero {
    min-height: 74svh;
    background:
      linear-gradient(180deg, rgba(8, 43, 48, 0.9), rgba(8, 43, 48, 0.7) 54%, rgba(8, 43, 48, 0.18)),
      url("../images/hero-cat-sunglasses.png") 66% center / cover no-repeat;
  }

  .hero-inner {
    padding: 54px 0 170px;
  }

  .section-heading,
  .split,
  .split.reverse,
  .contact-layout,
  .price-band {
    grid-template-columns: 1fr;
  }

  .feature-grid,
  .product-grid,
  .safety-grid,
  .faq-grid,
  .metric-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .nav-wrap,
  .section-inner,
  .hero-inner,
  .footer-inner {
    width: min(100% - 24px, var(--max));
  }

  .brand span:last-child {
    font-size: 0.96rem;
  }

  .hero h1,
  .page-hero h1 {
    font-size: clamp(2.35rem, 13vw, 4rem);
  }

  .hero p,
  .page-hero p {
    font-size: 1rem;
  }

  .section {
    padding: 54px 0;
  }

  .feature-grid,
  .product-grid,
  .safety-grid,
  .faq-grid,
  .metric-row,
  .form-row {
    grid-template-columns: 1fr;
  }

  .card,
  .option,
  .faq-item,
  .contact-panel,
  .form-panel {
    padding: 20px;
  }

  .price-band {
    padding: 22px;
  }

  .price-band > div:last-child {
    justify-content: flex-start;
  }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}