:root {
  color-scheme: light;
  --bg: #f5f9fb;
  --surface: rgba(255, 255, 255, 0.84);
  --border: rgba(15, 76, 92, 0.12);
  --text: #17303a;
  --text-soft: #607985;
  --text-inverse: #eff7fa;
  --brand: #0f4c5c;
  --brand-soft: #4fa3c4;
  --brand-ink: #0b3240;
  --shadow: 0 20px 60px rgba(11, 50, 64, 0.14);
  --radius-xl: 36px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --max-width: 1220px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Manrope', 'Segoe UI', sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 163, 196, 0.22), transparent 24%),
    radial-gradient(circle at 85% 12%, rgba(127, 200, 169, 0.18), transparent 24%),
    linear-gradient(180deg, #f7fbfc 0%, #f2f7f9 52%, #edf4f6 100%);
}

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

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

button,
input,
textarea {
  font: inherit;
}

.site-shell {
  width: min(calc(100% - 32px), var(--max-width));
  margin: 0 auto;
  padding: 20px 0 48px;
}

.topbar {
  position: sticky;
  top: 18px;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 22px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(22px);
  box-shadow: 0 14px 32px rgba(15, 76, 92, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: 'Sora', sans-serif;
  font-weight: 600;
  letter-spacing: -0.03em;
}

.brand img {
  width: 40px;
  height: 40px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-soft);
}

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

.nav-cta {
  margin-left: 8px;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--brand);
  font-weight: 700;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px;
  align-items: center;
  padding: 78px 0 56px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand-soft);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.contact-copy h2 {
  margin: 0;
  font-family: 'Sora', sans-serif;
  font-size: clamp(2.6rem, 4.4vw, 5rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
  color: var(--brand-ink);
}

.hero-lead,
.section-heading p,
.intro-card p,
.module-card p,
.audience-grid p,
.brand-panel p,
.comparison li,
.faq-answer p,
.contact-copy p,
.contact-form span,
.contact-form input,
.contact-form textarea,
.footer p {
  color: var(--text-soft);
}

.hero-lead {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: 1.1rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 700;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--brand), #2c7282);
  color: var(--text-inverse);
  box-shadow: 0 18px 36px rgba(15, 76, 92, 0.2);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.82);
  border-color: var(--border);
  color: var(--brand);
}

.button-block {
  width: 100%;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.hero-tags li {
  padding: 10px 14px;
  border: 1px solid rgba(15, 76, 92, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--brand);
  font-size: 0.92rem;
  font-weight: 700;
}

.hero-stage {
  position: relative;
  min-height: 620px;
}

.stage-glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(36px);
  opacity: 0.65;
}

.stage-glow-a {
  top: 36px;
  right: 42px;
  width: 180px;
  height: 180px;
  background: rgba(79, 163, 196, 0.38);
}

.stage-glow-b {
  bottom: 96px;
  left: 24px;
  width: 200px;
  height: 200px;
  background: rgba(127, 200, 169, 0.28);
}

.product-window {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(243, 248, 250, 0.92));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.product-window-main {
  top: 30px;
  left: 0;
  right: 70px;
}

.product-window-floating {
  right: 0;
  bottom: 0;
  width: min(340px, 88%);
  padding: 24px;
}

.window-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(15, 76, 92, 0.08);
  background: rgba(255, 255, 255, 0.88);
}

.window-topbar p {
  margin: 0 0 0 6px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--brand);
}

.window-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(15, 76, 92, 0.18);
}

.window-grid {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: 420px;
}

.mini-sidebar {
  padding: 18px;
  background: linear-gradient(180deg, #f5fbfd, #edf5f8);
  border-right: 1px solid rgba(15, 76, 92, 0.08);
}

.mini-label {
  margin: 0 0 16px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.mini-study {
  display: grid;
  gap: 6px;
  padding: 14px;
  border: 1px solid rgba(15, 76, 92, 0.08);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.74);
}

.mini-study + .mini-study {
  margin-top: 10px;
}

.mini-study strong,
.floating-list strong,
.intro-card h3,
.module-card h3,
.audience-grid h3,
.comparison h3,
.faq-trigger,
.contact-form span,
.signal-value {
  color: var(--brand-ink);
}

.mini-study span,
.floating-list span {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.mini-study-active {
  background: linear-gradient(135deg, rgba(15, 76, 92, 0.96), rgba(39, 112, 128, 0.94));
  box-shadow: 0 18px 32px rgba(15, 76, 92, 0.24);
}

.mini-study-active strong,
.mini-study-active span {
  color: var(--text-inverse);
}

.viewer-preview {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.viewer-overlay,
.viewer-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  font-size: 0.88rem;
  color: var(--text-soft);
}

.viewer-canvas {
  position: relative;
  flex: 1;
  min-height: 300px;
  margin: 0 18px;
  border-radius: 26px;
  background:
    radial-gradient(circle at center, rgba(79, 163, 196, 0.15), transparent 45%),
    linear-gradient(180deg, #0b2531 0%, #071b23 100%);
  overflow: hidden;
}

.scan {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(233, 245, 249, 0.18);
}

.scan-a {
  inset: 16% 18%;
}

.scan-b {
  inset: 28% 30%;
}

.focus-ring {
  position: absolute;
  inset: 50%;
  width: 110px;
  height: 110px;
  margin: -55px 0 0 -55px;
  border-radius: 50%;
  border: 2px solid rgba(127, 200, 169, 0.75);
  box-shadow: 0 0 0 12px rgba(127, 200, 169, 0.08);
}

.floating-list {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.floating-list li {
  display: grid;
  gap: 6px;
}

.signal-band,
.section,
.footer {
  margin-top: 24px;
}

.signal-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 30px rgba(15, 76, 92, 0.06);
}

.signal-band p {
  margin: 8px 0 0;
}

.signal-value {
  font-family: 'Sora', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}

.section {
  padding: 44px 0;
}

.section-heading {
  display: grid;
  gap: 18px;
  margin-bottom: 28px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3.2vw, 3.4rem);
}

.section-heading.narrow {
  max-width: 880px;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr));
  gap: 18px;
  align-items: start;
}

.intro-card,
.module-card,
.audience-grid article,
.comparison article,
.faq-item,
.contact,
.footer {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  backdrop-filter: blur(20px);
  box-shadow: 0 16px 40px rgba(15, 76, 92, 0.06);
}

.intro-card,
.module-card,
.audience-grid article,
.comparison article {
  padding: 24px;
}

.intro-card h3,
.module-card h3,
.audience-grid h3,
.comparison h3 {
  margin: 0 0 12px;
  font-size: 1.15rem;
}

.module-grid,
.audience-grid,
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.module-index {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(79, 163, 196, 0.12);
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.workflow {
  padding-bottom: 12px;
}

.workflow-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.workflow-steps li {
  padding: 22px;
  border-top: 3px solid var(--brand-soft);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.8), rgba(240, 246, 248, 0.9));
}

.workflow-steps strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.workflow-steps p,
.comparison ul,
.footer-links {
  margin: 0;
  color: var(--text-soft);
}

.comparison ul {
  padding-left: 18px;
}

.comparison li + li {
  margin-top: 10px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  overflow: hidden;
}

.faq-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 22px 24px;
  border: 0;
  background: transparent;
  text-align: left;
  font-weight: 700;
}

.faq-answer {
  padding: 0 24px 22px;
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: 24px;
  padding: 28px;
}

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

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

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 15px 16px;
  border: 1px solid rgba(15, 76, 92, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid rgba(79, 163, 196, 0.24);
  border-color: rgba(79, 163, 196, 0.44);
}

.form-feedback {
  min-height: 24px;
  margin: 0;
  font-size: 0.95rem;
  color: var(--brand);
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 26px;
}

.footer-brand {
  margin-bottom: 10px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links a:hover {
  color: var(--brand);
}

[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 500ms ease, transform 500ms ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1120px) {
  .hero,
  .brand-panel,
  .contact,
  .intro-grid {
    grid-template-columns: 1fr;
  }

  .intro-grid > .section-heading {
    margin-bottom: 0;
  }

  .hero-stage {
    min-height: 700px;
  }

  .workflow-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 880px) {
  .site-shell {
    width: min(calc(100% - 20px), var(--max-width));
  }

  .topbar {
    border-radius: 28px;
    align-items: flex-start;
    padding: 16px 18px;
  }

  .menu-toggle {
    display: inline-flex;
    padding-top: 10px;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: var(--shadow);
  }

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

  .nav-cta {
    margin-left: 0;
  }

  .product-window-main {
    right: 0;
  }

  .product-window-floating {
    position: relative;
    width: 100%;
    margin-top: 18px;
  }

  .hero-stage {
    min-height: auto;
  }

  .product-window {
    position: relative;
  }

  .window-grid,
  .module-grid,
  .audience-grid,
  .comparison-grid,
  .signal-band,
  .workflow-steps,
  .contact {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 46px;
  }

  .hero h1,
  .section-heading h2,
  .contact-copy h2 {
    font-size: clamp(2.2rem, 12vw, 3rem);
  }

  .window-grid {
    min-height: unset;
  }

  .mini-sidebar {
    border-right: 0;
    border-bottom: 1px solid rgba(15, 76, 92, 0.08);
  }

  .hero-actions,
  .hero-tags,
  .footer {
    flex-direction: column;
  }

  .button,
  .button-secondary,
  .button-primary {
    width: 100%;
  }
}