:root {
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-primary-active: #1e40af;
  --color-primary-soft: #eaf2ff;
  --color-accent: #0f766e;
  --color-warning: #ff9800;
  --color-background: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-panel: #f3f7fb;
  --color-text-primary: #122033;
  --color-text-muted: #64748b;
  --color-border: #dbe5f4;
  --shadow-card: rgba(17, 38, 77, 0.1);
  --shadow-brand: rgba(21, 87, 200, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #fbfdff 0%, #eef4f2 42%, #f8fafc 100%);
  color: var(--color-text-primary);
  font-family: Inter, Arial, sans-serif;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: min(1180px, calc(100% - 32px));
  min-height: 72px;
  margin: 12px auto 0;
  padding: 10px 12px 10px 16px;
  border: 1px solid rgba(219, 229, 244, 0.85);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  font-weight: 800;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex: 0 0 auto;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-active));
  color: white;
  font-size: 14px;
}

.desktop-nav {
  display: none;
  align-items: center;
  gap: 6px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 700;
}

.desktop-nav a {
  padding: 10px 12px;
  border-radius: 12px;
  transition: color 180ms ease, background-color 180ms ease;
}

.desktop-nav a:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.header-cta,
.primary-button,
.secondary-button,
.mobile-nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 800;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.header-cta,
.primary-button,
.mobile-nav-cta {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: white;
  box-shadow: 0 12px 24px var(--shadow-brand);
}

.secondary-button {
  border: 1px solid var(--color-border);
  background: white;
  color: var(--color-text-primary);
}

.header-cta {
  display: none;
}

.primary-button:hover,
.secondary-button:hover,
.header-cta:hover,
.mobile-nav-cta:hover {
  transform: translateY(-2px);
}

.secondary-button:hover {
  background: var(--color-primary-soft);
}

.menu-button {
  display: inline-flex;
  width: 44px;
  height: 44px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  border: 0;
  border-radius: 14px;
  background: var(--color-surface-panel);
  cursor: pointer;
}

.menu-button span {
  width: 18px;
  height: 2px;
  border-radius: 99px;
  background: var(--color-text-primary);
  transition: transform 180ms ease;
}

.menu-button.is-open span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-button.is-open span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: 94px;
  right: 16px;
  left: 16px;
  z-index: 40;
  display: none;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: white;
  box-shadow: 0 18px 40px var(--shadow-card);
}

.mobile-nav.is-open {
  display: grid;
  gap: 8px;
}

.mobile-nav a {
  padding: 12px;
  border-radius: 12px;
  color: var(--color-text-muted);
  font-weight: 700;
}

.mobile-nav a:hover {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.mobile-nav .mobile-nav-cta {
  color: white;
}

.section-band {
  padding: 64px 0;
}

.section-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  padding-top: 48px;
}

.hero-grid,
.split-grid,
.interface-grid,
.audience-grid {
  display: grid;
  gap: 32px;
}

.hero-copy {
  display: grid;
  gap: 18px;
  align-content: center;
}

.eyebrow {
  margin: 0;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 0;
  max-width: 760px;
  font-size: clamp(38px, 8vw, 72px);
  line-height: 1.02;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(28px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

p {
  color: var(--color-text-muted);
  line-height: 1.65;
}

.hero-text {
  max-width: 680px;
  font-size: 18px;
}

.hero-actions,
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-proof {
  margin-top: 8px;
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 700;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.hero-proof strong {
  color: var(--color-primary);
}

.product-preview {
  position: relative;
  min-height: 420px;
}

.app-shell {
  display: grid;
  grid-template-columns: 76px 1fr;
  height: 100%;
  min-height: 420px;
  overflow: hidden;
  border: 1px solid rgba(219, 229, 244, 0.92);
  border-radius: 28px;
  background: white;
  box-shadow: 0 24px 70px rgba(17, 38, 77, 0.16);
}

.mock-sidebar {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: 18px 14px;
  background: rgba(248, 250, 252, 0.96);
  border-right: 1px solid var(--color-border);
}

.mock-brand,
.mock-nav {
  display: block;
  border-radius: 14px;
}

.mock-brand {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-active));
}

.mock-nav {
  width: 42px;
  height: 42px;
  background: #e9eef7;
}

.mock-nav.active {
  background: var(--color-primary-soft);
}

.mock-nav.short {
  margin-top: 90px;
}

.mock-page {
  display: grid;
  align-content: start;
  gap: 16px;
  padding: 24px;
  background: linear-gradient(180deg, #f9fafc, #f4f8fb);
}

.mock-topline,
.mock-title,
.mock-subtitle,
.mock-button,
.mock-toolbar span,
.mock-table-head,
.mock-row b,
.mock-row span {
  display: block;
  border-radius: 999px;
  background: #dfe8f5;
}

.mock-topline {
  width: 130px;
  height: 10px;
}

.mock-title-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
}

.mock-title {
  width: min(320px, 52vw);
  height: 34px;
  border-radius: 12px;
  background: #bfcee4;
}

.mock-subtitle {
  width: min(440px, 56vw);
  height: 12px;
  margin-top: 12px;
}

.mock-button {
  width: 110px;
  height: 46px;
  flex: 0 0 auto;
  background: var(--color-primary);
}

.mock-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  border-radius: 20px;
  background: white;
  box-shadow: 0 10px 28px var(--shadow-card);
}

.mock-toolbar span {
  width: 92px;
  height: 36px;
  background: #eef4fb;
}

.mock-table {
  overflow: hidden;
  border-radius: 20px;
  background: white;
  box-shadow: 0 14px 36px var(--shadow-card);
}

.mock-table-head {
  height: 44px;
  border-radius: 0;
  background: #eef3f8;
}

.mock-row {
  display: grid;
  grid-template-columns: minmax(80px, 1fr) minmax(80px, 0.8fr) 36px 36px;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-top: 1px solid #eef2f7;
}

.mock-row b {
  height: 16px;
  background: #cbd7e8;
}

.mock-row span {
  height: 12px;
}

.mock-row i {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: #fff3e0;
}

.mock-row i.ok {
  background: var(--color-primary-soft);
}

.floating-card {
  position: absolute;
  display: none;
  align-items: center;
  gap: 12px;
  max-width: 250px;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: white;
  box-shadow: 0 18px 42px rgba(17, 38, 77, 0.16);
  animation: float 4s ease-in-out infinite;
}

.floating-card-one {
  right: -8px;
  top: 36px;
}

.floating-card-two {
  left: -12px;
  bottom: 34px;
  animation-delay: 0.8s;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 900;
}

.card-icon.photo {
  background: rgba(15, 118, 110, 0.12);
  color: var(--color-accent);
}

.floating-card strong,
.floating-card small {
  display: block;
}

.floating-card small {
  margin-top: 3px;
  color: var(--color-text-muted);
}

.center-copy,
.section-heading {
  max-width: 760px;
}

.center-copy {
  margin: 0 auto 32px;
  text-align: center;
}

.section-heading {
  margin-bottom: 28px;
}

.pain-list,
.value-grid,
.feature-grid,
.step-grid,
.review-grid,
.concept-grid {
  display: grid;
  gap: 16px;
}

.pain-list article,
.value-card,
.feature-card,
.step-card,
.review-card,
.concept-card,
.interface-stack article {
  border: 1px solid rgba(219, 229, 244, 0.9);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: 0 14px 36px rgba(17, 38, 77, 0.08);
}

.pain-list article {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 18px;
}

.pain-list span,
.step-card span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex: 0 0 auto;
  border-radius: 13px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 900;
}

.value-card,
.feature-card,
.step-card,
.review-card,
.concept-card {
  padding: 22px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.value-card:hover,
.feature-card:hover,
.step-card:hover,
.review-card:hover,
.concept-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 22px 44px rgba(17, 38, 77, 0.12);
}

.icon-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: white;
  font-weight: 900;
}

.interface-stack {
  display: grid;
  gap: 14px;
}

.interface-stack article {
  display: grid;
  gap: 6px;
  padding: 18px;
}

.interface-stack span,
.audience-list span,
.review-card span {
  color: var(--color-text-muted);
}

.demo-tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.demo-tab {
  min-height: 44px;
  padding: 0 16px;
  flex: 0 0 auto;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  background: white;
  color: var(--color-text-muted);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

.demo-tab:hover,
.demo-tab.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  transform: translateY(-1px);
}

.demo-frame {
  display: grid;
  overflow: hidden;
  border: 1px solid rgba(219, 229, 244, 0.92);
  border-radius: 28px;
  background: white;
  box-shadow: 0 24px 70px rgba(17, 38, 77, 0.14);
}

.demo-sidebar {
  display: none;
  padding: 18px;
  border-right: 1px solid var(--color-border);
  background: rgba(248, 250, 252, 0.96);
}

.demo-sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.demo-sidebar-brand span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-active));
  color: white;
  font-weight: 900;
}

.demo-side-link {
  display: block;
  margin-bottom: 8px;
  padding: 13px 14px;
  border-radius: 16px;
  color: var(--color-text-muted);
  font-weight: 800;
}

.demo-side-link.active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.demo-screen {
  display: none;
  min-width: 0;
  padding: clamp(18px, 4vw, 28px);
  background: linear-gradient(180deg, #f9fafc, #f4f8fb);
}

.demo-screen.is-active {
  display: grid;
  gap: 16px;
}

.demo-screen-head {
  display: grid;
  gap: 14px;
}

.demo-screen-head h3 {
  margin: 6px 0 8px;
  font-size: clamp(24px, 4vw, 34px);
  line-height: 1.1;
}

.demo-screen-head p {
  margin-bottom: 0;
}

.demo-path {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.demo-screen-head button,
.demo-toolbar span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 14px;
  font-weight: 800;
}

.demo-screen-head button {
  width: 100%;
  border: 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  color: white;
  box-shadow: 0 12px 24px var(--shadow-brand);
}

.demo-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  border-radius: 20px;
  background: white;
  box-shadow: 0 10px 28px var(--shadow-card);
}

.demo-toolbar span {
  padding: 0 14px;
  background: var(--color-surface-panel);
  color: var(--color-text-muted);
  font-size: 14px;
}

.demo-table {
  overflow: hidden;
  border-radius: 22px;
  background: white;
  box-shadow: 0 14px 36px var(--shadow-card);
}

.demo-table-row {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid #edf2f7;
}

.demo-table-row:first-child {
  border-top: 0;
}

.demo-table-head {
  background: #eef3f8;
  color: var(--color-text-muted);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.demo-table-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

.state-good,
.state-warn {
  display: inline-flex;
  width: fit-content;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-weight: 900;
}

.state-good {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.state-warn {
  background: #fff3e0;
  color: var(--color-warning);
}

.demo-card-grid,
.demo-list,
.timeline-list {
  display: grid;
  gap: 12px;
}

.demo-card-grid article,
.demo-list button,
.timeline-list article,
.door-plate {
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: white;
  box-shadow: 0 12px 30px rgba(17, 38, 77, 0.08);
}

.demo-card-grid article,
.timeline-list article {
  padding: 18px;
}

.demo-card-grid span,
.timeline-list span {
  display: block;
  margin-bottom: 8px;
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.demo-list button {
  display: grid;
  gap: 6px;
  width: 100%;
  padding: 16px;
  border-color: var(--color-border);
  color: var(--color-text-primary);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.demo-list button:hover {
  background: var(--color-primary-soft);
}

.demo-list span {
  color: var(--color-text-muted);
}

.door-plate {
  display: grid;
  gap: 10px;
  padding: 24px;
  background: linear-gradient(135deg, #122033, #1e40af);
  color: white;
}

.door-plate span {
  font-size: clamp(42px, 8vw, 74px);
  font-weight: 900;
  line-height: 1;
}

.door-plate strong {
  font-size: 20px;
}

.audience-list {
  display: grid;
  gap: 10px;
}

.audience-list span {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--color-border);
  border-radius: 16px;
  background: white;
  font-weight: 700;
}

.review-card p {
  color: var(--color-text-primary);
}

.review-card strong,
.review-card span {
  display: block;
}

.review-card span {
  margin-top: 4px;
  font-size: 14px;
}

.cta-panel {
  display: grid;
  gap: 24px;
  padding: clamp(28px, 5vw, 48px);
  border-radius: 28px;
  background: linear-gradient(135deg, #122033, #1e40af);
  color: white;
  box-shadow: 0 24px 70px rgba(17, 38, 77, 0.22);
}

.cta-panel p,
.cta-panel .eyebrow {
  color: rgba(255, 255, 255, 0.78);
}

.site-footer {
  padding: 32px 0 42px;
}

.footer-inner {
  display: grid;
  gap: 16px;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--color-text-muted);
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@media (min-width: 760px) {
  .desktop-nav,
  .header-cta {
    display: inline-flex;
  }

  .menu-button {
    display: none;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(420px, 0.84fr);
    align-items: center;
  }

  .split-grid,
  .interface-grid,
  .audience-grid {
    grid-template-columns: minmax(0, 0.9fr) minmax(360px, 1fr);
    align-items: center;
  }

  .value-grid,
  .review-grid,
  .concept-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .step-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .demo-frame {
    grid-template-columns: 248px minmax(0, 1fr);
  }

  .demo-sidebar {
    display: block;
  }

  .demo-screen-head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
  }

  .demo-screen-head button {
    width: auto;
    padding: 0 18px;
  }

  .demo-table-row {
    grid-template-columns: 1.3fr 0.7fr 0.9fr 1.1fr 0.9fr;
    align-items: center;
  }

  .demo-table.compact .demo-table-row {
    grid-template-columns: 1.4fr 0.8fr 0.9fr;
  }

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

  .floating-card {
    display: flex;
  }

  .cta-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .footer-inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 1080px) {
  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .section-band {
    padding: 48px 0;
  }

  .hero-actions .primary-button,
  .hero-actions .secondary-button,
  .cta-panel .primary-button {
    width: 100%;
  }

  .app-shell {
    grid-template-columns: 56px 1fr;
    min-height: 360px;
    border-radius: 22px;
  }

  .mock-sidebar {
    padding: 14px 9px;
  }

  .mock-brand,
  .mock-nav {
    width: 38px;
    height: 38px;
  }

  .mock-page {
    padding: 18px;
  }

  .mock-button {
    display: none;
  }

  .mock-row {
    grid-template-columns: minmax(80px, 1fr) 34px 34px;
  }

  .mock-row span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}