:root {
  color-scheme: dark;
  --primary: #4e86ff;
  --background: #071428;
  --surface: #0d1b34;
  --cyan: #35d7ef;
  --success: #23c76a;
  --warning: #f0a31a;
  --violet: #8c68ff;
  --danger: #e04f5f;
  --text: #f4f8ff;
  --muted: #afc0d9;
  --border: rgba(175, 192, 217, 0.2);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
}
a { color: inherit; }
.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 20;
  background: var(--primary);
  padding: 10px 14px;
}
.skip-link:focus { top: 12px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  background: rgba(7, 20, 40, 0.86);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 22px;
  font-weight: 800;
  white-space: nowrap;
}
.brand b { color: var(--primary); }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 30px;
  color: var(--cyan);
  font-size: 38px;
  line-height: 1;
}
nav {
  display: flex;
  align-items: center;
  gap: clamp(14px, 3vw, 34px);
  font-size: 15px;
  color: var(--muted);
}
nav a { text-decoration: none; }
nav a:hover { color: var(--text); }

.primary {
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, #4e86ff, #1261ff);
  color: white;
  box-shadow: 0 16px 38px rgba(18, 97, 255, 0.28);
  cursor: pointer;
  font: 700 18px/1.2 inherit;
  min-height: 54px;
  padding: 0 24px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}
.primary:hover { transform: translateY(-1px); filter: brightness(1.08); }
.primary:active, .primary.is-loading { transform: translateY(1px); filter: brightness(0.96); }
.primary:focus-visible, input:focus-visible, textarea:focus-visible, .ai-badge:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 3px;
}
.primary:disabled {
  cursor: not-allowed;
  filter: grayscale(0.4) brightness(0.7);
  box-shadow: none;
}
.primary.is-success { background: linear-gradient(135deg, #23c76a, #0a9b4b); }
.primary.is-error { background: linear-gradient(135deg, #e04f5f, #9e2230); }
.primary.small {
  min-height: 46px;
  padding: 0 18px;
  font-size: 15px;
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(300px, 0.82fr) minmax(480px, 1.18fr);
  gap: 24px;
  min-height: 690px;
  padding: clamp(48px, 6vw, 86px) clamp(18px, 4vw, 56px) 48px;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7,20,40,0.96) 0%, rgba(7,20,40,0.75) 43%, rgba(7,20,40,0.22) 100%),
    radial-gradient(circle at 78% 18%, rgba(53,215,239,0.2), transparent 36%);
  pointer-events: none;
}
.hero-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  max-width: 720px;
}
.eyebrow {
  color: var(--cyan);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 720px;
  font-size: clamp(40px, 6vw, 72px);
  line-height: 1.05;
  margin-bottom: 22px;
  letter-spacing: 0;
}
h2 { font-size: clamp(28px, 4vw, 38px); line-height: 1.16; }
h3 { font-size: 20px; line-height: 1.25; }
.lead {
  max-width: 610px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 22px);
  margin-bottom: 34px;
}
.hero-button { min-width: 280px; }
.hero-visual {
  position: relative;
  z-index: 1;
  align-self: center;
  min-height: 520px;
}
.hero-visual img {
  width: min(1000px, 72vw);
  max-width: none;
  height: auto;
  margin-left: -60px;
  border-radius: 8px;
  opacity: 0.96;
}
#workflowCanvas {
  position: absolute;
  inset: 4% 0 0 0;
  width: 100%;
  height: 92%;
  pointer-events: none;
}
.motion-fallback {
  display: none;
  margin-top: 12px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 12px;
  border-radius: 8px;
}

.roles, .section, .split, .demo, .privacy-page {
  width: min(1280px, calc(100% - 36px));
  margin: 0 auto 22px;
}
.roles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.roles article, .features article, .process div, .benefits, .demo form, .demo > div, .privacy-page {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: linear-gradient(180deg, rgba(13, 27, 52, 0.92), rgba(9, 25, 48, 0.72));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22);
}
.roles article { padding: 24px; min-height: 180px; }
.role-icon {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  margin-bottom: 18px;
  background: var(--primary);
  box-shadow: 0 0 28px rgba(78, 134, 255, 0.35);
}
.role-icon.customer { background: linear-gradient(135deg, #35d7ef, #23c76a); }
.role-icon.integrator { background: linear-gradient(135deg, #4e86ff, #35d7ef); }
.role-icon.worker { background: linear-gradient(135deg, #8c68ff, #4e86ff); }
.roles p, .features p, .process p, .benefits p { color: var(--muted); margin-bottom: 0; }

.section {
  padding: clamp(28px, 5vw, 48px) 0;
}
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.process {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.process div {
  position: relative;
  min-height: 220px;
  padding: 26px 22px;
}
.process b {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  margin-bottom: 24px;
  border-radius: 50%;
  background: rgba(78, 134, 255, 0.14);
  border: 1px solid var(--cyan);
  color: var(--cyan);
  font-size: 24px;
}
.split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 18px;
  padding: clamp(28px, 5vw, 48px) 0;
}
.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  list-style: none;
}
.check-list li {
  padding-left: 34px;
  position: relative;
  color: var(--muted);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--success);
  font-weight: 900;
}
.note {
  color: var(--text);
  border-left: 3px solid var(--warning);
  padding-left: 16px;
  max-width: 760px;
}
.benefits {
  display: grid;
  align-content: start;
  gap: 18px;
  padding: 28px;
}
.benefits div {
  border-top: 1px solid var(--border);
  padding-top: 18px;
}
.features {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}
.features article { padding: 22px; min-height: 170px; }
.future-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}
.future-grid span {
  display: grid;
  gap: 10px;
  min-height: 98px;
  padding: 16px;
  border: 1px solid rgba(175,192,217,0.15);
  border-radius: 8px;
  color: rgba(244,248,255,0.68);
  background: rgba(13, 27, 52, 0.52);
}
.future-grid b {
  align-self: end;
  color: var(--warning);
  font-size: 13px;
  font-weight: 700;
}

.demo {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 18px;
  padding: 28px 0 48px;
}
.demo > div { padding: 30px; }
form {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 28px;
}
label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
}
label.wide { grid-column: 1 / -1; }
input, textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(7, 20, 40, 0.72);
  color: var(--text);
  font: 16px/1.4 inherit;
  padding: 14px 15px;
}
textarea { resize: vertical; min-height: 112px; }
input:focus, textarea:focus { border-color: var(--cyan); }
input.is-invalid, textarea.is-invalid { border-color: var(--danger); }
.hp { position: absolute; left: -100vw; width: 1px; height: 1px; }
.form-error {
  grid-column: 1 / -1;
  min-height: 24px;
  color: #ffb7bf;
  margin: 0;
}
.submit { grid-column: 1 / -1; }
.privacy {
  grid-column: 1 / -1;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 0;
}
.privacy a { color: var(--cyan); }

.ai-badge {
  display: inline-grid;
  place-items: center;
  min-width: 46px;
  height: 26px;
  margin-left: 8px;
  border: 1px solid rgba(53, 215, 239, 0.42);
  border-radius: 999px;
  background: rgba(53, 215, 239, 0.08);
  color: #b8f6ff;
  font: 700 12px/1 inherit;
  cursor: pointer;
  vertical-align: middle;
}
.ai-badge:hover { background: rgba(53, 215, 239, 0.18); }
.ai-dialog {
  width: min(520px, calc(100% - 28px));
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #09172d;
  color: var(--text);
  padding: 24px;
}
.ai-dialog::backdrop { background: rgba(0, 0, 0, 0.62); }
.dialog-close {
  float: right;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  width: 38px;
  height: 38px;
  cursor: pointer;
}
.ai-dialog dl { display: grid; grid-template-columns: 150px 1fr; gap: 8px 14px; }
.ai-dialog dt { color: var(--muted); }
.ai-dialog dd { margin: 0; }

.footer {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px 22px;
  padding: 28px clamp(18px, 4vw, 56px);
  background: #030c19;
  border-top: 1px solid var(--border);
}
.footer a, .footer span { color: var(--muted); text-decoration: none; }
.footer div { display: grid; gap: 4px; }
.privacy-page {
  margin-top: 48px;
  margin-bottom: 48px;
  padding: clamp(24px, 5vw, 48px);
  max-width: 940px;
}
.link-button {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  #workflowCanvas { display: none; }
  .motion-fallback { display: block; }
}

@media (max-width: 980px) {
  .topbar { align-items: flex-start; }
  .topbar nav { display: none; }
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero::before { background: linear-gradient(180deg, rgba(7,20,40,0.98), rgba(7,20,40,0.72)); }
  .hero-visual { min-height: 360px; overflow: hidden; }
  .hero-visual img { width: 920px; margin-left: -370px; }
  .roles, .process, .split, .features, .future-grid, .demo, form, .footer {
    grid-template-columns: 1fr;
  }
  .future-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  .topbar { padding: 14px 16px; }
  .brand { font-size: 18px; }
  .primary.small { display: none; }
  .hero { padding: 38px 16px 28px; }
  .hero-button { width: 100%; min-width: 0; }
  .hero-visual { min-height: 300px; }
  .hero-visual img { width: 760px; margin-left: -330px; }
  .roles, .section, .split, .demo, .privacy-page { width: calc(100% - 28px); }
  .process div { min-height: 170px; }
  .future-grid { grid-template-columns: 1fr; }
  .footer { grid-template-columns: 1fr; }
}