:root {
  --bg: #fff9f3;
  --bg-alt: #f0f7ff;
  --surface: #ffffff;
  --text: #2d3142;
  --muted: #6b7280;
  --primary: #ff8c42;
  --primary-dark: #e6732e;
  --accent: #4ecdc4;
  --accent-soft: #b8f0eb;
  --sun: #ffd166;
  --shadow: 0 12px 40px rgba(45, 49, 66, 0.08);
  --radius: 20px;
  --font: "Nunito", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
}

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

a {
  color: var(--primary-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(1100px, 92vw);
  margin-inline: auto;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 249, 243, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(45, 49, 66, 0.06);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: inherit;
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
}

.logo__mark {
  font-size: 1.75rem;
  line-height: 1;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo__text strong {
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.logo__text small {
  font-size: 0.72rem;
  color: var(--muted);
  font-weight: 600;
}

.nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
}

.nav a {
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
}

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

.header__cta {
  margin-left: 0.5rem;
}

.nav-toggle {
  display: none;
  margin-left: auto;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  font-weight: 700;
  font-family: inherit;
  font-size: 1rem;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), #ff6b6b);
  box-shadow: 0 8px 24px rgba(255, 140, 66, 0.35);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 140, 66, 0.4);
  text-decoration: none;
  color: #fff;
}

.btn--ghost {
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  border: 2px solid rgba(45, 49, 66, 0.08);
}

.btn--ghost:hover {
  color: var(--text);
}

.btn--small {
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
}

.btn--full {
  width: 100%;
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding: 4rem 0 6rem;
  min-height: 88vh;
  display: flex;
  align-items: center;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 85% 15%, rgba(255, 209, 102, 0.45), transparent 45%),
    radial-gradient(circle at 10% 80%, rgba(78, 205, 196, 0.25), transparent 40%),
    linear-gradient(180deg, #fff9f3 0%, #f0f7ff 100%);
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 640px;
}

.hero__badge {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: var(--accent-soft);
  color: #1a6b65;
  font-weight: 700;
  font-size: 0.85rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.15;
  margin: 0 0 1rem;
  font-weight: 800;
}

.hero__lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin: 0 0 1.75rem;
  max-width: 32rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero__stats {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero__stats li {
  display: flex;
  flex-direction: column;
}

.hero__stats strong {
  font-size: 1.5rem;
  color: var(--primary-dark);
}

.hero__stats span {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
}

.hero__illustration {
  position: absolute;
  right: -5%;
  bottom: 0;
  width: min(50%, 480px);
  height: 55%;
  z-index: 1;
  pointer-events: none;
}

.sun {
  position: absolute;
  top: 8%;
  right: 25%;
  width: 90px;
  height: 90px;
  background: var(--sun);
  border-radius: 50%;
  box-shadow: 0 0 60px rgba(255, 209, 102, 0.7);
}

.cloud {
  position: absolute;
  background: #fff;
  border-radius: 50px;
  opacity: 0.9;
  box-shadow: var(--shadow);
}

.cloud::before,
.cloud::after {
  content: "";
  position: absolute;
  background: inherit;
  border-radius: 50%;
}

.cloud--1 {
  width: 100px;
  height: 36px;
  top: 22%;
  right: 10%;
}

.cloud--1::before {
  width: 44px;
  height: 44px;
  top: -22px;
  left: 12px;
}

.cloud--1::after {
  width: 56px;
  height: 56px;
  top: -28px;
  right: 18px;
}

.cloud--2 {
  width: 70px;
  height: 28px;
  top: 38%;
  right: 45%;
  opacity: 0.75;
}

.hill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 45%;
  background: linear-gradient(180deg, #a8e6cf 0%, #7bc9a0 100%);
  border-radius: 50% 50% 0 0 / 30% 30% 0 0;
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

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

.section--cta {
  background: linear-gradient(160deg, #fff9f3, #e8f4ff);
}

.section__head {
  margin-bottom: 2.5rem;
}

.section__head--center {
  text-align: center;
}

.section__head--center .section__sub {
  margin-inline: auto;
}

.section__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section__head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  font-weight: 800;
}

.section__sub {
  color: var(--muted);
  max-width: 36rem;
  margin: 0.5rem auto 0;
}

.muted {
  color: var(--muted);
  font-size: 0.95rem;
}

/* About */
.about__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1.1fr;
  align-items: start;
}

.about__text p {
  margin-top: 0;
}

.about__cards {
  display: grid;
  gap: 1rem;
}

.info-card {
  background: var(--surface);
  padding: 1.25rem 1.35rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.info-card__icon {
  font-size: 1.5rem;
}

.info-card h3 {
  margin: 0.35rem 0 0.25rem;
  font-size: 1.1rem;
}

.info-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

/* Groups */
.groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.group-card {
  position: relative;
  background: var(--surface);
  padding: 1.75rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid transparent;
}

.group-card--featured {
  border-color: var(--primary);
  transform: translateY(-4px);
}

.group-card__badge {
  position: absolute;
  top: -10px;
  right: 1rem;
  background: var(--primary);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
}

.group-card__age {
  display: inline-block;
  font-weight: 800;
  color: var(--primary-dark);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.group-card h3 {
  margin: 0 0 0.75rem;
}

.group-card ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.group-card li + li {
  margin-top: 0.35rem;
}

/* Features */
.features {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.feature {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.feature__num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.feature h3 {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.contact__list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
}

.contact__list li {
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(45, 49, 66, 0.08);
}

.contact__list li span {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.2rem;
}

.contact__list a {
  color: inherit;
}

.contact__form {
  background: var(--surface);
  padding: 1.75rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.contact__form h3 {
  margin: 0 0 1rem;
}

.contact__form label {
  display: block;
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.contact__form input,
.contact__form select,
.contact__form textarea {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.7rem 0.9rem;
  border: 2px solid rgba(45, 49, 66, 0.1);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  background: #fafafa;
}

.contact__form input:focus,
.contact__form select:focus,
.contact__form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
}

.form-note {
  margin: 0.75rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Footer */
.footer {
  padding: 1.5rem 0;
  background: var(--text);
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9rem;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer a {
  color: var(--sun);
}

/* Mobile */
@media (max-width: 900px) {
  .about__grid,
  .groups,
  .features,
  .contact {
    grid-template-columns: 1fr;
  }

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

  .hero__illustration {
    opacity: 0.5;
    width: 70%;
    right: -20%;
  }

  .features {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 1rem 4vw 1.25rem;
    border-bottom: 1px solid rgba(45, 49, 66, 0.08);
    margin-left: 0;
  }

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

  .header__cta {
    display: none;
  }

  .features {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 3rem 0 4rem;
  }
}