:root {
  --navy: #0f2d4f;
  --navy-2: #173f68;
  --blue: #4ba3d8;
  --light-blue: #eaf6fc;
  --silver: #eef2f6;
  --silver-2: #c9d4df;
  --ink: #152033;
  --muted: #627084;
  --white: #ffffff;
  --success: #19a87c;
  --shadow: 0 18px 48px rgba(15, 45, 79, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
}

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

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

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -5rem;
  z-index: 20;
  padding: 0.75rem 1rem;
  color: var(--white);
  background: var(--navy);
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.top-cta {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 14px;
  padding: 10px 16px;
  color: var(--white);
  background: linear-gradient(90deg, var(--navy), var(--navy-2));
  font-size: 0.92rem;
  text-align: center;
}

.top-cta a {
  flex: 0 0 auto;
  padding: 7px 12px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  font-weight: 700;
}

.site-header {
  position: sticky;
  top: 44px;
  z-index: 25;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--silver);
  backdrop-filter: blur(14px);
}

.nav {
  width: min(1120px, calc(100% - 32px));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--navy);
  font-size: 1.35rem;
  font-weight: 800;
}

.brand img {
  border-radius: 50%;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--navy);
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-links a:hover {
  color: var(--blue);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--silver-2);
  border-radius: var(--radius);
  background: var(--white);
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--navy);
}

.section {
  padding: 84px 0;
}

.hero {
  overflow: hidden;
  padding-top: 74px;
  background:
    radial-gradient(circle at 88% 8%, rgba(75, 163, 216, 0.2), transparent 30%),
    linear-gradient(180deg, #f7fbfe 0%, #ffffff 100%);
}

.hero-grid,
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(2.35rem, 7vw, 3.9rem);
  line-height: 0.98;
}

h2 {
  margin: 0;
  color: var(--navy);
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  line-height: 1.08;
}

h3 {
  margin: 0 0 10px;
  color: var(--navy);
  font-size: 1.1rem;
  line-height: 1.25;
}

.hero-subtitle {
  max-width: 660px;
  margin: 22px 0;
  color: var(--muted);
  font-size: 1.12rem;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0;
}

.badges span {
  padding: 9px 12px;
  border: 1px solid #c8e5f5;
  border-radius: 999px;
  color: var(--navy);
  background: var(--light-blue);
  font-weight: 700;
  font-size: 0.9rem;
}

.hero-actions,
.cta-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 48px;
  padding: 13px 22px;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.15;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--white);
  background: var(--navy);
  box-shadow: 0 12px 22px rgba(15, 45, 79, 0.22);
}

.button-primary:hover {
  background: var(--navy-2);
}

.button-secondary {
  color: var(--navy);
  background: var(--white);
  border: 1px solid var(--silver-2);
}

.button-light {
  color: var(--navy);
  background: var(--white);
}

.urgency {
  margin: 18px 0 0;
  color: var(--navy);
  font-size: 0.95rem;
}

.hero-product {
  position: relative;
  padding: 28px;
  border: 1px solid #dbe8f2;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow);
}

.hero-product img {
  width: 100%;
  object-fit: contain;
  filter: drop-shadow(0 22px 22px rgba(15, 45, 79, 0.16));
}

.trust-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 16px;
}

.trust-strip span {
  padding: 10px;
  border-radius: var(--radius);
  color: var(--navy);
  background: var(--silver);
  font-weight: 700;
  font-size: 0.86rem;
  text-align: center;
}

.copy-block p,
.section-head p,
.guarantee-box p {
  color: var(--muted);
  font-size: 1.05rem;
}

.soft {
  background: #f6f9fc;
}

.cta-band {
  padding: 34px 0;
  color: var(--white);
  background: linear-gradient(90deg, var(--blue), var(--navy-2));
}

.cta-band.navy {
  background: linear-gradient(90deg, var(--navy), #245b87);
}

.cta-inner {
  justify-content: space-between;
}

.cta-inner h2 {
  color: var(--white);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
}

.cta-inner p {
  margin: 8px 0 0;
  color: rgba(255, 255, 255, 0.86);
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.benefit-grid,
.ingredient-grid,
.review-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.icon-card,
.ingredient-grid article,
.review-card,
.price-card,
.steps article {
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 10px 28px rgba(15, 45, 79, 0.07);
}

.icon-card {
  min-height: 138px;
  padding: 22px;
}

.icon-card span {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  border-radius: 50%;
  color: var(--white);
  background: var(--blue);
  font-size: 1.35rem;
  font-weight: 800;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  counter-reset: step;
}

.steps article {
  padding: 24px;
}

.steps span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  border-radius: 50%;
  color: var(--white);
  background: var(--navy);
  font-weight: 800;
}

.steps p,
.ingredient-grid p,
.review-card p {
  margin: 0;
  color: var(--muted);
}

.ingredient-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ingredient-grid article {
  padding: 26px;
  border-top: 4px solid var(--blue);
}

.pricing-section {
  background: linear-gradient(180deg, #ffffff 0%, #f4f9fd 100%);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  align-items: stretch;
}

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

.price-card.featured {
  border: 2px solid var(--blue);
  transform: translateY(-10px);
  box-shadow: 0 22px 52px rgba(15, 45, 79, 0.16);
}

.ribbon {
  position: absolute;
  top: 14px;
  right: 14px;
  padding: 7px 11px;
  border-radius: 999px;
  color: var(--white);
  background: var(--success);
  font-size: 0.78rem;
  font-weight: 800;
}

.pack-image {
  display: grid;
  place-items: center;
  min-height: 190px;
  margin: 18px 0;
}

.pack-image img {
  max-height: 188px;
  object-fit: contain;
}

.supply,
.total,
.save,
.guarantee {
  margin: 8px 0;
}

.supply {
  color: var(--muted);
  font-weight: 700;
}

.price {
  margin: 8px 0;
  color: var(--navy);
  font-size: 2.65rem;
  font-weight: 900;
  line-height: 1;
}

.price span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.save {
  color: var(--success);
  font-weight: 800;
}

.guarantee {
  color: var(--navy);
  font-weight: 800;
}

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

.guarantee-box {
  display: grid;
  grid-template-columns: 1fr 1.35fr auto;
  gap: 28px;
  align-items: center;
  padding: 32px;
  border: 1px solid #dce8f1;
  border-radius: var(--radius);
  background: var(--white);
}

.review-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.review-card {
  padding: 26px;
}

.avatar {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  margin-bottom: 14px;
  border-radius: 50%;
  color: var(--white);
  background: linear-gradient(135deg, var(--navy), var(--blue));
  font-weight: 800;
}

.stars {
  color: #f6a800;
  font-weight: 800;
  margin-bottom: 10px;
}

.stars small {
  color: var(--muted);
}

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

.review-card strong {
  margin-top: 18px;
  color: var(--navy);
}

.review-card span,
.review-note {
  color: var(--muted);
}

.review-note {
  margin-top: 22px;
  font-size: 0.95rem;
}

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

details {
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  background: var(--white);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  color: var(--navy);
  font-weight: 800;
}

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

.site-footer {
  padding: 48px 0 20px;
  color: rgba(255, 255, 255, 0.82);
  background: #081b31;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 32px;
}

.footer-brand {
  color: var(--white);
}

.site-footer p {
  max-width: 440px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.footer-links button {
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  color: var(--white);
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.footer-links button:hover {
  background: rgba(255, 255, 255, 0.08);
}

.footer-bottom {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.modal,
.exit-popup {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  place-items: center;
  padding: 20px;
  background: rgba(8, 27, 49, 0.72);
}

.modal.is-open,
.exit-popup.is-open {
  display: grid;
}

.modal-panel,
.exit-panel {
  width: min(640px, 100%);
  max-height: min(80vh, 760px);
  overflow: auto;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
}

.modal-panel {
  position: relative;
  padding: 32px;
}

.modal-close,
.exit-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 38px;
  height: 38px;
  border: 0;
  border-radius: 50%;
  color: var(--navy);
  background: var(--silver);
  font-size: 1.4rem;
  cursor: pointer;
}

.modal-panel p,
.modal-panel li {
  color: var(--muted);
}

.exit-panel {
  position: relative;
  display: grid;
  grid-template-columns: 230px 1fr;
  gap: 24px;
  align-items: center;
  padding: 30px;
}

.exit-panel img {
  width: 100%;
  object-fit: contain;
}

@media (max-width: 960px) {
  .site-header {
    top: 43px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--silver);
    border-radius: var(--radius);
    background: var(--white);
    box-shadow: var(--shadow);
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    padding: 12px;
  }

  .hero-grid,
  .split,
  .guarantee-box,
  .footer-grid,
  .exit-panel {
    grid-template-columns: 1fr;
  }

  .benefit-grid,
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .price-card.featured {
    transform: none;
  }

  .guarantee-box {
    align-items: start;
  }

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

  .exit-panel img {
    max-width: 260px;
    margin: 0 auto;
  }
}

@media (max-width: 640px) {
  .container,
  .nav {
    width: min(100% - 24px, 1120px);
  }

  .top-cta {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
    font-size: 0.84rem;
  }

  .site-header {
    top: 78px;
  }

  .section {
    padding: 62px 0;
  }

  .hero {
    padding-top: 52px;
  }

  .hero-product {
    padding: 16px;
  }

  .trust-strip,
  .benefit-grid,
  .steps,
  .ingredient-grid {
    grid-template-columns: 1fr;
  }

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

  .button {
    padding-inline: 16px;
  }

  .cta-inner {
    align-items: stretch;
  }

  .price-card,
  .review-card,
  .ingredient-grid article,
  .modal-panel,
  .exit-panel {
    padding: 22px;
  }
}