:root {
  --color-bg: #eef9ff;
  --color-bg-warm: #fff8e8;
  --color-card: #ffffff;
  --color-blue: #1356b8;
  --color-blue-dark: #0d3472;
  --color-sky: #bce9ff;
  --color-yellow: #ffd85a;
  --color-coral: #ff7468;
  --color-green: #44b987;
  --color-text: #193354;
  --color-muted: #5c718c;
  --shadow-soft: 0 18px 45px rgba(19, 86, 184, 0.13);
  --radius: 22px;
  --container: 1180px;
  --header-height: 82px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  margin: 0;
  font-family: "Trebuchet MS", Arial, sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at 8% 12%, rgba(255, 216, 90, 0.33), transparent 24%),
    radial-gradient(circle at 91% 4%, rgba(255, 116, 104, 0.16), transparent 24%),
    linear-gradient(180deg, var(--color-bg) 0%, #fffaf0 46%, #f1fbff 100%);
  line-height: 1.6;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(18px, 4vw, 54px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(19, 86, 184, 0.1);
  backdrop-filter: blur(16px);
}

.brand {
  display: grid;
  line-height: 1.1;
}

.brand__name {
  color: var(--color-blue);
  font-size: 1.42rem;
  font-weight: 900;
}

.brand__tagline {
  color: var(--color-muted);
  font-size: 0.78rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--color-blue-dark);
  font-size: 0.95rem;
}

.site-nav a {
  border-radius: 999px;
  padding: 9px 10px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-blue);
  background: rgba(188, 233, 255, 0.55);
}

.site-nav .nav-button {
  background: var(--color-coral);
  color: #fff;
  box-shadow: 0 10px 24px rgba(255, 116, 104, 0.25);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 14px;
  background: var(--color-blue);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px auto;
  background: #fff;
}

.section {
  max-width: var(--container);
  margin: 0 auto;
  padding: 88px clamp(18px, 4vw, 28px);
}

.hero {
  min-height: calc(100vh - var(--header-height));
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(300px, 0.98fr);
  align-items: center;
  gap: clamp(28px, 5vw, 58px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin: 0 0 14px;
  padding: 7px 13px;
  border-radius: 999px;
  color: var(--color-blue);
  background: rgba(255, 216, 90, 0.55);
  font-weight: 800;
  letter-spacing: 0;
}

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

h1 {
  margin: 0;
  font-size: clamp(2.35rem, 6vw, 4.8rem);
  line-height: 0.96;
  color: var(--color-blue-dark);
}

h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.05;
  color: var(--color-blue-dark);
}

h3 {
  margin: 0 0 10px;
  line-height: 1.2;
  color: var(--color-blue-dark);
}

.hero__lead {
  max-width: 680px;
  margin: 22px 0;
  color: var(--color-muted);
  font-size: 1.18rem;
}

.benefit-line,
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 0 0 26px;
  list-style: none;
}

.benefit-line li,
.pill-list li {
  padding: 9px 13px;
  border: 1px solid rgba(19, 86, 184, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.75);
  color: var(--color-blue-dark);
  font-weight: 700;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 13px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 16px;
  padding: 13px 18px;
  font-weight: 900;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--color-coral), #ff9a5c);
  box-shadow: 0 14px 30px rgba(255, 116, 104, 0.24);
}

.button--secondary {
  color: var(--color-blue);
  background: #fff;
  border: 1px solid rgba(19, 86, 184, 0.16);
}

.hero__visual {
  position: relative;
  padding: 18px;
}

.hero__visual img {
  width: min(100%, 590px);
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  border: 10px solid rgba(255, 255, 255, 0.88);
  border-radius: 28px;
  object-fit: cover;
  filter: drop-shadow(0 18px 30px rgba(13, 52, 114, 0.13));
}

.phrase {
  position: absolute;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--color-blue-dark);
  background: #fff;
  font-weight: 900;
  box-shadow: var(--shadow-soft);
}

.phrase--one { top: 6%; left: 4%; }
.phrase--two { top: 24%; right: 2%; }
.phrase--three { bottom: 19%; left: 0; }
.phrase--four { right: 9%; bottom: 5%; }

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

.about__grid,
.results,
.trial,
.contacts {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 32px;
  align-items: center;
}

.about__photo,
.progress-card,
.trial,
.signup-form,
.contacts__info {
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow-soft);
}

.about__photo {
  padding: 22px;
}

.about__photo img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  object-fit: cover;
}

.about__text p {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 24px 0;
}

.stats-grid article,
.service-card,
.age-card,
.step,
.mini-card,
.review-card,
.price-card {
  border: 1px solid rgba(19, 86, 184, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow-soft);
}

.stats-grid article {
  padding: 16px;
}

.stats-grid span,
.price {
  display: block;
  color: var(--color-blue);
  font-size: 1.24rem;
  font-weight: 900;
}

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

.card-grid,
.age-grid,
.review-grid,
.price-grid {
  display: grid;
  gap: 18px;
}

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

.card-grid--four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.service-card,
.age-card,
.mini-card,
.review-card,
.price-card,
.step {
  padding: 22px;
}

.card-icon {
  display: inline-flex;
  min-width: 54px;
  height: 44px;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  border-radius: 16px;
  color: var(--color-blue);
  background: var(--color-yellow);
  font-weight: 900;
}

.service-card p,
.step p,
.review-card p,
.price-card li,
.age-card li {
  color: var(--color-muted);
}

.age-section,
.process,
.faq {
  position: relative;
}

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

.age-card:nth-child(2) {
  background: #fff8df;
}

.decor-line {
  width: fit-content;
  margin: 24px auto 0;
  padding: 13px 22px;
  border-radius: 999px;
  color: var(--color-blue);
  background: #fff;
  font-size: 1.35rem;
  font-weight: 900;
  box-shadow: var(--shadow-soft);
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.step span {
  display: inline-grid;
  width: 42px;
  height: 42px;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 50%;
  color: #fff;
  background: var(--color-blue);
  font-weight: 900;
}

.note,
.big-quote {
  margin: 26px 0 0;
  padding: 22px;
  border-radius: var(--radius);
  background: var(--color-yellow);
  color: var(--color-blue-dark);
  font-size: 1.28rem;
  font-weight: 900;
}

.mini-card {
  min-height: 138px;
  display: flex;
  align-items: center;
  font-weight: 900;
}

.results {
  grid-template-columns: 1.05fr 0.95fr;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 31px;
  color: var(--color-muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-green);
  font-weight: 900;
}

.progress-card {
  padding: 26px;
  text-align: center;
}

.progress-card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 16px;
  object-fit: cover;
}

.progress-track {
  height: 14px;
  margin: 22px 0 10px;
  border-radius: 999px;
  background: #d8edf8;
}

.progress-track span {
  display: block;
  width: 78%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-green), var(--color-yellow), var(--color-coral));
}

.trial {
  grid-template-columns: 1.2fr 0.8fr;
  background: linear-gradient(135deg, #fff, #fff1b9 48%, #d9f4ff);
}

.trial__content {
  padding: 6px;
}

.trial__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  align-self: end;
  border: 10px solid rgba(255, 255, 255, 0.88);
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 18px 34px rgba(13, 52, 114, 0.13);
}

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

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

.review-card small {
  margin-top: 7px;
  color: var(--color-muted);
}

.price-card {
  position: relative;
}

.price-card--popular {
  transform: translateY(-10px);
  border-color: rgba(255, 116, 104, 0.4);
}

.badge {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 7px 10px;
  border-radius: 999px;
  color: #fff;
  background: var(--color-coral);
  font-weight: 900;
}

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

details {
  border: 1px solid rgba(19, 86, 184, 0.11);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(19, 86, 184, 0.08);
}

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

details p {
  margin: 0;
  padding: 0 22px 18px;
  color: var(--color-muted);
}

.signup-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 26px;
}

.signup-form label {
  display: grid;
  gap: 7px;
  color: var(--color-blue-dark);
  font-weight: 900;
}

.signup-form input,
.signup-form select,
.signup-form textarea {
  width: 100%;
  min-height: 50px;
  border: 1px solid rgba(19, 86, 184, 0.18);
  border-radius: 14px;
  padding: 12px 14px;
  color: var(--color-text);
  background: #fff;
}

.signup-form input:focus,
.signup-form select:focus,
.signup-form textarea:focus {
  outline: 3px solid rgba(255, 216, 90, 0.55);
  border-color: var(--color-blue);
}

.form-wide {
  grid-column: 1 / -1;
}

.checkbox {
  grid-template-columns: auto 1fr;
  align-items: center;
}

.checkbox input {
  width: 22px;
  height: 22px;
  min-height: 22px;
}

.form-message {
  margin: 0;
  color: var(--color-blue);
  font-weight: 900;
}

.contacts {
  grid-template-columns: 1.05fr 0.95fr;
}

.contacts__decor {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 10px solid rgba(255, 255, 255, 0.88);
  border-radius: 22px;
  object-fit: cover;
  box-shadow: 0 18px 34px rgba(13, 52, 114, 0.13);
}

.contacts__info {
  padding: 26px;
}

dl {
  display: grid;
  gap: 11px;
  margin: 0 0 22px;
}

dl div {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(19, 86, 184, 0.1);
}

dt {
  color: var(--color-muted);
}

dd {
  margin: 0;
  font-weight: 900;
}

.site-footer {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
  padding: 42px clamp(18px, 4vw, 54px);
  color: #dceeff;
  background: var(--color-blue-dark);
}

.site-footer strong {
  color: #fff;
  font-size: 1.35rem;
}

.site-footer nav {
  display: grid;
  gap: 8px;
}

.site-footer a:hover {
  color: var(--color-yellow);
}

.copyright {
  grid-column: 1 / -1;
  margin: 0;
  color: #a9c7e8;
}

.back-to-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 45;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--color-blue);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .site-nav {
    gap: 6px;
    font-size: 0.85rem;
  }

  .hero,
  .about__grid,
  .results,
  .trial,
  .contacts {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 820px) {
  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 14px;
    right: 14px;
    display: grid;
    max-height: calc(100vh - var(--header-height) - 20px);
    padding: 16px;
    overflow-y: auto;
    border-radius: 20px;
    background: #fff;
    box-shadow: var(--shadow-soft);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
  }

  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .section {
    padding-top: 68px;
    padding-bottom: 68px;
  }

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

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

  .site-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  :root {
    --header-height: 74px;
  }

  .site-header {
    padding: 12px 14px;
  }

  .brand__name {
    font-size: 1.18rem;
  }

  .brand__tagline {
    max-width: 170px;
  }

  .hero {
    padding-top: 42px;
  }

  h1 {
    font-size: clamp(2rem, 13vw, 3rem);
  }

  .button,
  .button-row,
  .button-row .button {
    width: 100%;
  }

  .card-grid--six,
  .card-grid--four,
  .steps,
  .stats-grid,
  .signup-form {
    grid-template-columns: 1fr;
  }

  .phrase {
    position: static;
    display: inline-flex;
    margin: 6px 4px 0 0;
    font-size: 0.86rem;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

@media (max-width: 360px) {
  .section {
    padding-left: 14px;
    padding-right: 14px;
  }

  .service-card,
  .age-card,
  .mini-card,
  .review-card,
  .price-card,
  .step,
  .signup-form,
  .contacts__info {
    padding: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}