:root {
  --ink: #10202a;
  --muted: #5b6b75;
  --line: #d9e3e7;
  --surface: #ffffff;
  --soft: #eef6f5;
  --brand: #0f6b78;
  --brand-dark: #0b4652;
  --accent: #e0a929;
  --accent-soft: #fff3cf;
  --success: #24775b;
  --shadow: 0 22px 60px rgba(16, 32, 42, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: #fbfdfd;
  line-height: 1.55;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(217, 227, 231, 0.8);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--brand-dark);
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 28px);
  color: #24414c;
  font-size: 0.95rem;
  font-weight: 650;
}

.main-nav a {
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--brand);
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 9px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--brand-dark);
}

.hero {
  position: relative;
  min-height: 690px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  background: var(--brand-dark);
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.96) contrast(1.02);
}

.hero-overlay {
  background:
    linear-gradient(90deg, rgba(8, 38, 45, 0.93), rgba(8, 38, 45, 0.66) 42%, rgba(8, 38, 45, 0.24) 100%),
    linear-gradient(0deg, rgba(8, 38, 45, 0.62), rgba(8, 38, 45, 0.02) 55%);
}

.hero-content {
  position: relative;
  width: min(780px, 100%);
  padding: 120px clamp(20px, 6vw, 82px) 150px;
  color: #ffffff;
}

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

.hero h1 {
  margin: 0;
  font-size: clamp(3.9rem, 9vw, 8.4rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero-copy {
  width: min(640px, 100%);
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

.hero-actions,
.inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

.btn:hover,
.btn:focus {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #1d2a22;
  box-shadow: 0 14px 34px rgba(224, 169, 41, 0.24);
}

.btn-light {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.12);
}

.btn-secondary {
  color: var(--brand-dark);
  border-color: #b9cdd2;
  background: #ffffff;
}

.hero-strip {
  position: absolute;
  left: clamp(20px, 6vw, 82px);
  right: clamp(20px, 6vw, 82px);
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-strip div {
  padding: 20px;
  background: rgba(255, 255, 255, 0.95);
}

.hero-strip strong,
.hero-strip span {
  display: block;
}

.hero-strip strong {
  color: var(--brand-dark);
  font-size: 1rem;
}

.hero-strip span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.section {
  padding: clamp(64px, 8vw, 110px) clamp(20px, 6vw, 82px);
}

.section-heading {
  width: min(860px, 100%);
  margin-bottom: 34px;
}

h2 {
  margin: 0;
  max-width: 880px;
  font-size: clamp(2rem, 4vw, 3.35rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 1.12rem;
  line-height: 1.25;
}

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

.intro-section {
  background: var(--surface);
}

.intro-grid,
.feature-grid,
.download-grid,
.offers-grid {
  display: grid;
  gap: 18px;
}

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

.intro-grid article,
.feature-grid article,
.download-panel,
.offers-grid article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 24px;
  box-shadow: 0 10px 30px rgba(16, 32, 42, 0.06);
}

.metric {
  display: block;
  margin-bottom: 18px;
  color: var(--accent);
  font-weight: 900;
  font-size: 2rem;
}

.product-section {
  display: grid;
  grid-template-columns: minmax(260px, 0.75fr) minmax(420px, 1.25fr);
  gap: clamp(28px, 5vw, 64px);
  background: var(--soft);
}

.product-copy {
  position: sticky;
  top: 110px;
  align-self: start;
}

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

.feature-grid article {
  min-height: 170px;
}

.demo-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  align-items: center;
  gap: clamp(30px, 6vw, 76px);
  background: #ffffff;
}

.demo-visual {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--soft);
  box-shadow: var(--shadow);
}

.demo-visual img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
}

.check-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #2f4650;
  font-weight: 650;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--success);
}

.demo-accounts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 22px;
}

.demo-accounts div {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #f7fbfb;
}

.demo-accounts strong,
.demo-accounts span {
  display: block;
}

.demo-accounts strong {
  color: var(--brand-dark);
}

.demo-accounts span {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.92rem;
}

.download-section {
  background: #f7fbfb;
}

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

.download-panel {
  display: flex;
  min-height: 250px;
  flex-direction: column;
  align-items: flex-start;
}

.download-panel .btn {
  margin-top: auto;
}

.primary-panel {
  border-color: rgba(15, 107, 120, 0.35);
  background: #edf8f7;
}

.file-note {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.86rem;
}

.proof-section {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(260px, 420px);
  align-items: center;
  gap: clamp(28px, 6vw, 72px);
  background: var(--brand-dark);
  color: #ffffff;
}

.proof-section p {
  color: rgba(255, 255, 255, 0.82);
}

.proof-section img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  align-self: end;
}

.offers-section {
  background: #ffffff;
}

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

.offers-grid article {
  min-height: 220px;
}

.offers-grid strong {
  display: inline-block;
  margin-top: 18px;
  color: var(--brand);
}

.featured-offer {
  border-color: rgba(224, 169, 41, 0.65);
  background: var(--accent-soft);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(280px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 6vw, 72px);
  background: var(--soft);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: #25404b;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid #c8d6da;
  border-radius: var(--radius);
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
  background: #ffffff;
}

textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 6vw, 82px);
  color: #dce8eb;
  background: #082630;
}

.site-footer div,
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 22px;
}

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

.error-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--soft);
}

.error-shell {
  width: min(620px, 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 6vw, 52px);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.error-shell h1 {
  margin: 34px 0 10px;
  font-size: clamp(2.3rem, 8vw, 4rem);
  line-height: 1;
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-block;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 20px 20px;
    background: #ffffff;
    border-bottom: 1px solid var(--line);
  }

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

  .main-nav a {
    padding: 14px 0;
  }

  .hero {
    min-height: 720px;
  }

  .hero-content {
    padding-bottom: 250px;
  }

  .hero-strip,
  .demo-accounts,
  .intro-grid,
  .download-grid,
  .offers-grid,
  .feature-grid,
  .product-section,
  .demo-section,
  .proof-section,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero-strip {
    left: 20px;
    right: 20px;
  }

  .product-copy {
    position: static;
  }
}

@media (max-width: 640px) {
  .site-header {
    min-height: 66px;
    padding: 12px 16px;
  }

  .brand img {
    width: 36px;
    height: 36px;
  }

  .main-nav {
    top: 66px;
  }

  .hero {
    min-height: 760px;
  }

  .hero h1 {
    font-size: 3.7rem;
  }

  .hero-content {
    padding: 98px 20px 300px;
  }

  .hero-strip {
    grid-template-columns: 1fr;
    bottom: 18px;
  }

  .btn {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}