:root {
  --bg: #f6f8fb;
  --paper: #ffffff;
  --ink: #101826;
  --muted: #5c6877;
  --line: #dbe3ec;
  --blue: #1f6feb;
  --blue-dark: #174ea6;
  --navy: #111f33;
  --soft-blue: #eaf2ff;
  --shadow: 0 18px 50px rgba(16, 24, 38, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

body.menu-open {
  overflow: hidden;
}

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

.site-header {
  position: fixed;
  z-index: 20;
  inset: 0 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-grid;
  gap: 3px;
  min-width: 0;
}

.brand strong {
  font-size: 1.02rem;
  line-height: 1;
}

.brand small {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 750;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

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

.menu-toggle {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: 88vh;
  padding: 132px clamp(18px, 5vw, 72px) 72px;
  background:
    radial-gradient(circle at 88% 16%, rgba(31, 111, 235, 0.14), transparent 32%),
    linear-gradient(180deg, #ffffff, var(--bg));
}

.hero-copy {
  max-width: 790px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--blue-dark);
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 18px;
  font-size: clamp(3.2rem, 7vw, 6.5rem);
  line-height: 0.96;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 4vw, 4.1rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
}

.hero-copy > p:not(.eyebrow),
.contact-copy p,
.demo-grid p,
.process-grid p,
.offer-card li,
.site-footer p {
  color: var(--muted);
}

.hero-copy > p:not(.eyebrow) {
  max-width: 730px;
  font-size: 1.12rem;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 12px;
  font-weight: 900;
}

.button.primary {
  color: white;
  background: var(--blue);
  box-shadow: 0 14px 34px rgba(31, 111, 235, 0.22);
}

.button.secondary {
  color: var(--blue-dark);
  background: var(--soft-blue);
  border-color: #c8dbff;
}

.hero-panel {
  display: grid;
  gap: 12px;
}

.hero-panel div,
.demo-grid article,
.process-grid article,
.offer-card,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.hero-panel div {
  padding: 22px;
}

.hero-panel span,
.process-grid span {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  margin-bottom: 14px;
  border-radius: 999px;
  color: white;
  background: var(--blue);
  font-weight: 950;
}

.hero-panel strong {
  display: block;
  font-size: 1.1rem;
}

.hero-panel p {
  margin: 8px 0 0;
  color: var(--muted);
}

.trust-note {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 28px;
  align-items: start;
  margin: 0 clamp(18px, 5vw, 72px);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--paper);
  box-shadow: var(--shadow);
}

.trust-note h2 {
  font-size: clamp(1.8rem, 3vw, 3rem);
}

.trust-note p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.section {
  padding: 86px clamp(18px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.25fr);
  gap: 28px;
  align-items: end;
  margin-bottom: 32px;
}

.demo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.demo-grid article {
  padding: 24px;
}

.demo-grid a {
  display: inline-flex;
  margin-top: 12px;
  color: var(--blue-dark);
  font-weight: 900;
  word-break: break-word;
}

.offer {
  background: var(--navy);
}

.offer-card {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 36px;
  padding: clamp(24px, 4vw, 44px);
  color: white;
  background: linear-gradient(135deg, #14253e, #0d1726);
  border-color: rgba(255, 255, 255, 0.13);
}

.offer-card .eyebrow,
.offer-intro,
.offer-card li,
.offer-card .discount {
  color: #c9d7ea;
}

.price {
  margin: 22px 0 10px;
  color: white;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
  font-weight: 950;
}

.discount {
  max-width: 460px;
  margin-bottom: 0;
  font-weight: 850;
}

.offer-card ul {
  columns: 2;
  gap: 28px;
  margin: 18px 0 0;
  padding-left: 20px;
}

.offer-intro {
  max-width: 620px;
  margin: 0;
  font-size: 1.04rem;
  font-weight: 800;
}

.offer-card li {
  margin-bottom: 10px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.process-grid article {
  padding: 24px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: 32px;
  align-items: start;
  background: var(--navy);
  color: #fff;
}

.contact-copy {
  max-width: 560px;
}

.contact .eyebrow,
.contact-copy p {
  color: #c9d7ea;
}

.contact-form {
  display: grid;
  gap: 14px;
  width: 100%;
  max-width: 640px;
  margin-top: 24px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  box-sizing: border-box;
  padding: 14px 16px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  font: inherit;
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.contact-form button {
  padding: 14px 18px;
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: var(--navy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 46px clamp(18px, 5vw, 72px);
  background: var(--soft-blue);
  border-top: 1px solid #c8dbff;
}

.final-cta h2 {
  font-size: clamp(1.8rem, 3vw, 3.2rem);
}

.final-cta p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 30px clamp(18px, 5vw, 72px);
  background: #101826;
}

.site-footer p {
  margin-bottom: 0;
  color: #c9d4e2;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    display: none;
  }

  .menu-toggle {
    display: grid;
    gap: 7px;
    width: 44px;
    height: 44px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: white;
  }

  .menu-toggle span {
    display: block;
    height: 2px;
    background: var(--ink);
  }

  body.menu-open .site-nav {
    position: fixed;
    top: 76px;
    left: 14px;
    right: 14px;
    display: grid;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: white;
    box-shadow: var(--shadow);
  }

  body.menu-open .site-nav a {
    padding: 14px;
  }

  .hero,
  .section-heading,
  .trust-note,
  .offer-card,
  .contact,
  .final-cta {
    grid-template-columns: 1fr;
  }

  .final-cta {
    display: grid;
  }

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

@media (max-width: 680px) {
  .site-header {
    padding: 13px 16px;
  }

  .brand strong {
    font-size: 0.94rem;
  }

  .brand small {
    font-size: 0.68rem;
  }

  .hero {
    min-height: auto;
    padding: 112px 18px 56px;
  }

  h1 {
    font-size: clamp(2.65rem, 14vw, 4.6rem);
  }

  .button {
    width: 100%;
  }

  .section {
    padding: 58px 18px;
  }

  .demo-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .contact-form {
    gap: 14px;
    padding: 18px;
  }

  .contact-form label {
    gap: 8px;
  }

  .trust-note {
    margin: 0 18px;
    padding: 24px;
  }

  .offer-card ul {
    columns: 1;
  }

  .site-footer {
    display: grid;
  }
}