:root {
  --color-green-dark:   #2d4a2d;
  --color-green-mid:    #4a7c4a;
  --color-green-main:   #5a8a3c;
  --color-green-btn:    #4d7c3a;
  --color-green-light:  #e8f0e0;
  --color-green-pale:   #f0f5ea;
  --color-green-icon:   #c8dab8;
  --color-bg:           #ffffff;
  --color-hero-bg:      #f2f5ec;
  --color-footer-bg:    #2d4a2d;
  --color-text:         #1a1a1a;
  --color-text-muted:   #555555;
  --color-border:       #e0e8d8;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Inter', sans-serif;

  --radius-sm:  8px;
  --radius-md:  16px;
  --radius-lg:  24px;
  --radius-xl:  32px;

  --shadow-card: 0 2px 16px rgba(60, 90, 40, 0.08);
  --shadow-hover: 0 8px 32px rgba(60, 90, 40, 0.16);

  --transition: 0.25s ease;
  --max-width: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--color-green-btn);
  color: #fff;
}
.btn--primary:hover {
  background: var(--color-green-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(60,90,40,0.25);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-green-main);
  color: var(--color-green-main);
}

.logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-green-dark);
  letter-spacing: -0.3px;
}
.logo--light {
  color: #8fcc6a;
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.header.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 68px;
}

.nav {
  display: flex;
  gap: 28px;
  margin-left: 8px;
}

.nav__link {
  font-size: 15px;
  color: var(--color-text-muted);
  font-weight: 400;
  transition: color var(--transition);
  white-space: nowrap;
}
.nav__link:hover {
  color: var(--color-green-main);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-left: auto;
}

.header__icon {
  color: var(--color-text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
}
.header__icon:hover {
  color: var(--color-green-main);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.hero {
  background: linear-gradient(135deg, #eef3e6 0%, #f5f8f0 50%, #e8f2da 100%);
  padding: 80px 0 100px;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.hero__content {
  max-width: 680px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.5vw, 64px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-green-dark);
  margin-bottom: 20px;
  letter-spacing: -1px;
}

.hero__subtitle {
  font-size: 18px;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 480px;
  line-height: 1.6;
}

.search-box {
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 8px 8px 8px 24px;
  max-width: 560px;
  box-shadow: 0 4px 24px rgba(60,90,40,0.12);
  margin-bottom: 20px;
}

.search-box__input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 16px;
  font-family: var(--font-body);
  color: var(--color-text);
  background: transparent;
}
.search-box__input::placeholder {
  color: #aaa;
}

.search-box__btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--color-green-btn);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 500;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
  white-space: nowrap;
}
.search-box__btn:hover {
  background: var(--color-green-dark);
  transform: scale(1.03);
}

.section {
  padding: 80px 0;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  text-align: center;
  color: var(--color-green-dark);
  margin-bottom: 12px;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 16px;
  margin-bottom: 48px;
}

.section__title + .categories__grid,
.section__title + .steps__grid,
.section__title + .benefits__grid,
.section__title + .faq__list {
  margin-top: 48px;
}

.categories {
  background: var(--color-bg);
}

.categories__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.category-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 28px 24px;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: #fff;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.category-card:hover {
  border-color: var(--color-green-main);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.category-card__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-green-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-green-mid);
  flex-shrink: 0;
}

.category-card span {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
}

.how-it-works {
  background: var(--color-green-pale);
}

.steps__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.step-card {
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.step-card--1 { background: #eef4e0; }
.step-card--2 { background: #d4e8c8; }
.step-card--3 { background: var(--color-green-mid); color: #fff; }

.step-card__num {
  font-family: var(--font-display);
  font-size: 56px;
  font-weight: 700;
  line-height: 1;
  opacity: 0.35;
  color: inherit;
}
.step-card--3 .step-card__num { color: #fff; }

.step-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-green-dark);
  line-height: 1.3;
}
.step-card--3 .step-card__title { color: #fff; }

.step-card__text {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}
.step-card--3 .step-card__text { color: rgba(255,255,255,0.85); }

.benefits {
  background: var(--color-bg);
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.benefit-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.benefit-item__icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-green-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-green-mid);
  flex-shrink: 0;
  transition: transform var(--transition), background var(--transition);
}
.benefit-item:hover .benefit-item__icon {
  transform: scale(1.1);
  background: var(--color-green-main);
  color: #fff;
}

.benefit-item__title {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}

.benefit-item__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.faq {
  background: var(--color-bg);
}

.faq__list {
  max-width: 760px;
  margin: 48px auto 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq__item {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq__item.open {
  border-color: var(--color-green-main);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--color-text);
  text-align: left;
  transition: color var(--transition);
}
.faq__question:hover {
  color: var(--color-green-main);
}

.faq__icon {
  flex-shrink: 0;
  color: var(--color-green-main);
  transition: transform var(--transition);
}
.faq__item.open .faq__icon {
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.25s ease;
}
.faq__item.open .faq__answer {
  max-height: 200px;
  padding-bottom: 20px;
}

.faq__answer p {
  padding: 0 24px;
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.faq__more {
  display: block;
  text-align: center;
  margin-top: 28px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-green-main);
  transition: color var(--transition), gap var(--transition);
}
.faq__more:hover {
  color: var(--color-green-dark);
}

.footer {
  background: var(--color-footer-bg);
  color: rgba(255,255,255,0.75);
  padding-top: 56px;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer__brand p {
  margin-top: 14px;
  font-size: 14px;
  line-height: 1.6;
  max-width: 280px;
}

.footer__col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col ul li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer__col ul li svg {
  flex-shrink: 0;
  opacity: 0.7;
}

.footer__col a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
}
.footer__col a:hover {
  color: #8fcc6a;
}

.footer__bottom {
  text-align: center;
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.categories__grid .reveal:nth-child(1) { transition-delay: 0.05s; }
.categories__grid .reveal:nth-child(2) { transition-delay: 0.10s; }
.categories__grid .reveal:nth-child(3) { transition-delay: 0.15s; }
.categories__grid .reveal:nth-child(4) { transition-delay: 0.20s; }

.steps__grid .reveal:nth-child(1) { transition-delay: 0.05s; }
.steps__grid .reveal:nth-child(2) { transition-delay: 0.15s; }
.steps__grid .reveal:nth-child(3) { transition-delay: 0.25s; }

.benefits__grid .reveal:nth-child(1) { transition-delay: 0.05s; }
.benefits__grid .reveal:nth-child(2) { transition-delay: 0.12s; }
.benefits__grid .reveal:nth-child(3) { transition-delay: 0.19s; }
.benefits__grid .reveal:nth-child(4) { transition-delay: 0.26s; }


@media (max-width: 1024px) {
  .categories__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
  }

  .footer__inner {
    grid-template-columns: 1fr 1fr;
  }
  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {

  .hero {
    padding: 60px 0 80px;
    min-height: auto;
  }
  .hero__title {
    font-size: 34px;
    letter-spacing: -0.5px;
  }
  .hero__subtitle {
    font-size: 16px;
  }
  .search-box {
    flex-direction: column;
    padding: 12px;
    border-radius: var(--radius-lg);
    gap: 10px;
  }
  .search-box__input {
    width: 100%;
    padding: 8px 4px;
  }
  .search-box__btn {
    width: 100%;
    justify-content: center;
  }

  .section { padding: 56px 0; }

  .categories__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .category-card {
    padding: 20px 16px;
  }

  .steps__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .benefits__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .section__title {
    font-size: 26px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }
  .hero__title {
    font-size: 28px;
  }
  .benefits__grid {
    grid-template-columns: 1fr;
  }
  .categories__grid {
    grid-template-columns: 1fr;
  }
}

.nav__link--mobile {
  display: none;
}

@media (max-width: 980px) {
  .nav__link--mobile {
    display: block;
  }
}

html,
body {
  width: 100%;
  overflow-x: hidden;
}

.footer {
  width: 100%;
}

@media (max-width: 980px) {
  .nav,
  .header__actions {
    display: none;
  }

  .burger {
    display: flex;
  }

  .nav.open {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    z-index: 99;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 18px 35px rgba(16, 24, 40, 0.12);
  }

  .nav.open .nav__link {
    font-size: 18px;
  }
}