:root {
  --primary-green: #4a9b7f;
  --primary-green-dark: #2f715b;
  --primary-green-light: #e8f5f0;
  --text-dark: #172033;
  --text-gray: #64748b;
  --bg-white: #ffffff;
  --bg-light: #f8fafc;
  --border-color: #e2e8f0;
  --shadow-lg: 0 18px 45px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-white);
  color: var(--text-dark);
  font-family: Inter, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.6;
}

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

button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(12px);
}

.nav-container {
  width: min(1180px, calc(100% - 32px));
  min-height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: 0 auto;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-green-dark);
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.logo-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: var(--primary-green);
  color: #fff;
  font-size: 0.78rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 9px 15px;
  border-radius: 10px;
  color: var(--text-gray);
  font-weight: 800;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link.active {
  background: var(--primary-green-light);
  color: var(--primary-green-dark);
}

.signin-btn {
  background: var(--primary-green);
  color: #fff;
}

.btn-primary-slide {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition:
    transform 0.24s ease,
    box-shadow 0.24s ease,
    background-color 0.24s ease;
}

.btn-primary-slide::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(110deg, transparent 0%, rgba(255, 255, 255, 0.28) 42%, transparent 72%);
  transform: translateX(-120%);
  transition: transform 0.62s ease;
}

.signin-btn:hover,
.signin-btn:focus-visible,
.btn-primary-slide:hover,
.btn-primary-slide:focus-visible {
  background: var(--primary-green-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(74, 155, 127, 0.24);
}

.btn-primary-slide:hover::before,
.btn-primary-slide:focus-visible::before {
  transform: translateX(120%);
}

.hero {
  width: min(1180px, calc(100% - 32px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 42px;
  align-items: center;
  margin: 0 auto;
  padding: 54px 0 48px;
}

.hero-badge {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  padding: 8px 16px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--bg-light);
  color: var(--primary-green-dark);
  font-size: 0.86rem;
  font-weight: 900;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-green);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.5rem, 7vw, 4.9rem);
  line-height: 1.03;
  letter-spacing: -0.03em;
}

.hero h1 span {
  color: var(--primary-green);
}

.hero-subtitle {
  max-width: 640px;
  margin: 20px 0 30px;
  color: var(--text-gray);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.hero-cta,
.secondary-cta {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border-radius: 14px;
  font-weight: 900;
}

.hero-cta {
  background: var(--primary-green);
  color: #fff;
  box-shadow: 0 12px 30px rgba(74, 155, 127, 0.32);
}

.hero-cta svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.3;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.secondary-cta {
  border: 1px solid var(--border-color);
  color: var(--primary-green-dark);
}

.hero-preview {
  display: grid;
  place-items: center;
}

.preview-card {
  width: min(430px, 100%);
  padding: 22px;
  border: 1px solid var(--border-color);
  border-radius: 28px;
  background: var(--bg-light);
  box-shadow: var(--shadow-lg);
}

.preview-header,
.preview-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px;
  border-radius: 18px;
  background: #fff;
}

.preview-header span,
.preview-row span {
  color: var(--text-gray);
  font-weight: 800;
}

.preview-header strong {
  color: var(--primary-green-dark);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  margin: 14px 0;
}

.preview-grid span {
  min-height: 78px;
  display: grid;
  place-items: center;
  padding: 8px;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  background: #fff;
  color: var(--text-dark);
  font-size: 0.78rem;
  font-weight: 900;
  text-align: center;
}

.preview-row strong {
  color: #dc2626;
}

.features-section,
.carousel-section,
.why-section,
.upcoming-section {
  padding: 52px 24px;
}

.features-section,
.why-section,
.upcoming-section {
  background: #fff;
}

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

.section-header {
  max-width: 680px;
  margin: 0 auto 28px;
  text-align: center;
}

.section-header h2,
.why-content h2 {
  margin: 0 0 10px;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  line-height: 1.15;
}

.section-header p,
.why-content p {
  margin: 0;
  color: var(--text-gray);
}

.features-grid {
  width: min(1100px, 100%);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin: 0 auto;
}

.feature-card {
  padding: 24px;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  background: var(--bg-light);
}

.feature-icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
  border-radius: 14px;
  background: var(--primary-green-light);
  color: var(--primary-green-dark);
  font-weight: 900;
}

.feature-card h3 {
  margin: 0 0 8px;
}

.feature-card p {
  margin: 0;
  color: var(--text-gray);
}

.carousel-wrapper {
  width: min(1080px, 100%);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin: 0 auto;
}

.carousel-container {
  overflow: hidden;
}

.carousel-track {
  display: flex;
  gap: 18px;
  transition: transform 0.45s ease;
}

.carousel-slide {
  flex: 0 0 calc((100% - 36px) / 3);
  min-width: 0;
  padding: 14px;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.07);
}

.carousel-slide img {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  object-fit: cover;
  object-position: top center;
  border-radius: 18px;
  border: 1px solid var(--border-color);
  background: var(--bg-light);
}

.carousel-slide h3 {
  margin: 14px 0 6px;
}

.carousel-slide p {
  margin: 0;
  color: var(--text-gray);
  font-size: 0.92rem;
}

.carousel-nav {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  color: var(--primary-green-dark);
  box-shadow: var(--shadow-lg);
  font-size: 1.7rem;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 26px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #cbd5e1;
}

.carousel-dot.active {
  width: 30px;
  background: var(--primary-green);
}

.upcoming-section {
  overflow: hidden;
  background: linear-gradient(180deg, #fff 0%, var(--bg-light) 100%);
}

.upcoming-carousel-shell {
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin: 0 auto;
}

.upcoming-carousel-window {
  overflow: hidden;
  padding: 4px 2px 12px;
}

.upcoming-track {
  display: flex;
  gap: 18px;
  transition: transform 0.48s ease;
  will-change: transform;
}

.upcoming-card {
  flex: 0 0 calc((100% - 36px) / 3);
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.upcoming-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  display: block;
  padding: 8px;
  object-fit: contain;
  object-position: center;
  background: var(--bg-light);
  border-bottom: 1px solid var(--border-color);
}

.upcoming-card-body {
  display: grid;
  gap: 9px;
  padding: 18px;
}

.upcoming-badge {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: var(--primary-green-light);
  color: var(--primary-green-dark);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.upcoming-card h3 {
  margin: 0;
  font-size: 1.16rem;
  line-height: 1.25;
}

.upcoming-card p {
  min-height: 72px;
  margin: 0;
  color: var(--text-gray);
  font-size: 0.92rem;
}

.upcoming-carousel-nav {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #fff;
  color: var(--primary-green-dark);
  box-shadow: var(--shadow-lg);
  font-size: 1.7rem;
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    transform 0.2s ease;
}

.upcoming-carousel-nav:hover,
.upcoming-carousel-nav:focus-visible {
  background: var(--primary-green);
  color: #fff;
  transform: translateY(-2px);
}

.upcoming-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 22px;
}

.upcoming-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #cbd5e1;
  transition:
    width 0.2s ease,
    background-color 0.2s ease;
}

.upcoming-dot.active {
  width: 30px;
  background: var(--primary-green);
}

.why-section {
  width: min(1120px, calc(100% - 32px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.65fr);
  gap: 40px;
  align-items: center;
  margin: 0 auto;
}

.why-list {
  display: grid;
  gap: 14px;
  margin-top: 26px;
}

.why-list div,
.why-panel {
  display: grid;
  gap: 5px;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  background: var(--bg-light);
}

.why-list span,
.why-panel span {
  color: var(--text-gray);
}

.why-panel {
  gap: 12px;
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.why-panel strong {
  color: var(--primary-green-dark);
}

.footer {
  background: #eef2f5;
  color: var(--text-dark);
}

.footer-container {
  width: min(1120px, calc(100% - 32px));
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 28px;
  margin: 0 auto;
  padding: 46px 0;
}

.footer h3,
.footer h4 {
  margin: 0 0 12px;
}

.footer p {
  margin: 0;
  color: var(--text-gray);
}

.footer a {
  display: block;
  margin: 7px 0;
  color: var(--text-gray);
}

.footer a:hover {
  color: var(--primary-green-dark);
}

.footer-bottom {
  padding: 18px;
  background: #374151;
  color: #fff;
  text-align: center;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 0 auto;
  padding: 54px 0;
}

.legal-card {
  padding: 34px;
  border: 1px solid var(--border-color);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(15, 23, 42, 0.08);
}

.legal-card h1 {
  margin: 0 0 8px;
  font-size: clamp(2rem, 5vw, 3rem);
}

.legal-card h2 {
  margin: 28px 0 8px;
  font-size: 1.2rem;
}

.legal-card p,
.legal-card li {
  color: var(--text-gray);
}

.legal-card ul {
  padding-left: 20px;
}

.legal-note {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--primary-green-light);
  color: var(--primary-green-dark);
  font-weight: 800;
}

.contact-page {
  width: min(980px, calc(100% - 32px));
  margin: 0 auto;
  padding: 58px 0 78px;
}

.contact-hero {
  max-width: 720px;
  margin: 0 auto 28px;
  text-align: center;
}

.contact-hero .hero-badge {
  margin-left: auto;
  margin-right: auto;
}

.contact-hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.3rem);
  line-height: 1.05;
}

.contact-hero p:not(.hero-badge) {
  margin: 16px 0 0;
  color: var(--text-gray);
}

.contact-card {
  padding: 28px;
  border: 1px solid var(--border-color);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow-lg);
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--text-gray);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 13px;
  border: 1px solid var(--border-color);
  border-radius: 14px;
  background: var(--bg-light);
  color: var(--text-dark);
  font: inherit;
  letter-spacing: 0;
  text-transform: none;
  outline: 0;
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary-green);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(74, 155, 127, 0.12);
}

.field-error {
  min-height: 18px;
  color: #dc2626;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.25;
  text-transform: none;
}

.field-error:not(.is-visible) {
  color: transparent;
}

.contact-message {
  min-height: 22px;
  margin: 0;
  color: var(--text-gray);
  font-size: 0.86rem;
  font-weight: 800;
}

.contact-message.error {
  color: #dc2626;
}

.contact-message.success {
  color: var(--primary-green-dark);
}

.contact-submit {
  width: fit-content;
  min-width: 150px;
  border: 0;
}

.contact-submit:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}

@media (max-width: 860px) {
  .nav-container {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
  }

  .nav-links {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero,
  .why-section {
    grid-template-columns: 1fr;
    padding-top: 36px;
  }

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

  .carousel-slide {
    flex-basis: 100%;
  }

  .upcoming-card {
    flex-basis: calc((100% - 18px) / 2);
  }

  .carousel-wrapper {
    grid-template-columns: 1fr;
  }

  .carousel-nav {
    display: none;
  }

  .contact-card,
  .legal-card {
    padding: 22px;
  }
}

@media (max-width: 620px) {
  .upcoming-card {
    flex-basis: 100%;
  }
}