:root {
  --ink: #f4fbf8;
  --muted: #a9bab7;
  --panel: rgba(12, 22, 25, .72);
  --panel-strong: rgba(14, 29, 31, .9);
  --line: rgba(112, 238, 213, .18);
  --teal: #31dab8;
  --green: #9cff6a;
  --gold: #f2c14e;
  --coral: #ff6b6b;
  --deep: #060c10;
  --shadow: 0 28px 80px rgba(0, 0, 0, .34);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", "Hiragino Sans", "Yu Gothic", sans-serif;
  line-height: 1.75;
  background: var(--deep);
  overflow-x: hidden;
}
a { color: inherit; }
img { max-width: 100%; }

.ai-field {
  position: fixed;
  inset: 0;
  z-index: -2;
  background: #060c10;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(115deg, rgba(49, 218, 184, .13), transparent 31%),
    linear-gradient(245deg, rgba(242, 193, 78, .12), transparent 34%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.025) 0 1px, transparent 1px 5px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 34px;
  background: rgba(6, 12, 16, .78);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}
.brand img {
  display: block;
  width: 292px;
  height: auto;
  filter: drop-shadow(0 12px 24px rgba(49, 218, 184, .12));
}
.nav { display: flex; flex-wrap: wrap; gap: 20px; font-size: 14px; font-weight: 850; }
.nav a { text-decoration: none; color: #d8f7ef; }
.nav a:hover { color: var(--green); }
.auth-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
}
.auth-link, .auth-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 15px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}
.auth-link {
  color: #dffcf4;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.045);
}
.auth-button {
  color: #07100f;
  background: linear-gradient(135deg, var(--teal), var(--green));
  box-shadow: 0 14px 30px rgba(49, 218, 184, .2);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(430px, 1.1fr);
  gap: 46px;
  max-width: 1220px;
  margin: 0 auto;
  padding: 76px 28px 68px;
  align-items: center;
}
.kicker, .section-label {
  margin: 0 0 12px;
  color: var(--green);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.hero h1 {
  margin: 0;
  max-width: 670px;
  font-size: clamp(42px, 5.6vw, 78px);
  line-height: 1.06;
  font-weight: 950;
  text-wrap: balance;
}
.lead {
  max-width: 650px;
  margin: 24px 0;
  color: #d4e2df;
  font-size: 18px;
  font-weight: 750;
}
.hero-actions, .cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 13px 22px;
  border: 0;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 900;
  cursor: pointer;
}
.button.primary {
  background: linear-gradient(135deg, var(--teal), var(--green));
  color: #07100f;
  box-shadow: 0 18px 44px rgba(49, 218, 184, .24);
}
.button.secondary {
  background: rgba(255,255,255,.06);
  color: #e8fbf6;
  border: 1px solid var(--line);
}
.signal-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 30px 0 0;
}
.signal-list div {
  min-height: 92px;
  padding: 14px;
  background: rgba(255,255,255,.055);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.signal-list dt { color: var(--muted); font-size: 12px; font-weight: 800; }
.signal-list dd { margin: 4px 0 0; color: #ffffff; font-weight: 950; }

.hero-visual {
  position: relative;
  min-height: 560px;
  perspective: 1200px;
}
.neural-console {
  position: relative;
  overflow: hidden;
  min-height: 548px;
  padding: 16px;
  background: linear-gradient(145deg, rgba(8, 15, 19, .94), rgba(14, 31, 32, .84));
  border: 1px solid rgba(112, 238, 213, .28);
  border-radius: 10px;
  box-shadow: var(--shadow), inset 0 0 0 1px rgba(255,255,255,.05);
  transform: rotateX(2deg) rotateY(-4deg);
  animation: consoleFloat 7s ease-in-out infinite;
}
.neural-console::before {
  content: "";
  position: absolute;
  inset: -40% -20%;
  background: linear-gradient(110deg, transparent 34%, rgba(49, 218, 184, .13) 48%, transparent 62%);
  transform: translateX(-50%);
  animation: sweep 5.4s linear infinite;
}
.console-top {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 0 12px;
  color: #bafbf0;
  border-bottom: 1px solid var(--line);
}
.console-top span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--coral);
}
.console-top span:nth-child(2) { background: var(--gold); }
.console-top span:nth-child(3) { background: var(--teal); }
.console-top strong { margin-left: 8px; font-size: 12px; letter-spacing: .05em; }
.scan-stage {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 18px;
  padding: 22px 8px;
}
.site-snapshot {
  position: relative;
  overflow: hidden;
  min-height: 300px;
  border: 1px solid rgba(255,255,255,.11);
  border-radius: 8px;
  background: #10191c;
}
.site-snapshot img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  opacity: .72;
  filter: grayscale(.18) contrast(1.05) saturate(.8);
}
.site-snapshot::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(49,218,184,.18) 1px, transparent 1px),
    linear-gradient(0deg, rgba(49,218,184,.14) 1px, transparent 1px);
  background-size: 34px 34px;
}
.site-snapshot p {
  position: absolute;
  left: 12px;
  bottom: 10px;
  z-index: 2;
  margin: 0;
  padding: 5px 9px;
  background: rgba(6,12,16,.76);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: #dffcf4;
  font-size: 12px;
  font-weight: 850;
}
.scan-line {
  position: absolute;
  z-index: 3;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 20px rgba(156,255,106,.85);
  animation: scan 3.2s linear infinite;
}
.signal-graph {
  display: grid;
  align-items: end;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  min-height: 300px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(49,218,184,.08), rgba(255,255,255,.025)),
    repeating-linear-gradient(0deg, rgba(255,255,255,.04) 0 1px, transparent 1px 22px);
}
.signal-graph i {
  display: block;
  border-radius: 7px 7px 2px 2px;
  background: linear-gradient(180deg, var(--green), var(--teal));
  box-shadow: 0 0 18px rgba(49,218,184,.32);
  animation: bars 2.8s ease-in-out infinite;
}
.signal-graph i:nth-child(1) { height: 42%; animation-delay: -.1s; }
.signal-graph i:nth-child(2) { height: 68%; animation-delay: -.7s; }
.signal-graph i:nth-child(3) { height: 54%; animation-delay: -1.2s; }
.signal-graph i:nth-child(4) { height: 88%; animation-delay: -.4s; }
.signal-graph i:nth-child(5) { height: 61%; animation-delay: -1.6s; }
.console-output {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 12px;
}
.console-output article {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 2px 12px;
  padding: 16px;
  background: rgba(255,255,255,.055);
  border: 1px solid var(--line);
  border-radius: 8px;
}
.console-output span {
  grid-row: span 2;
  color: var(--green);
  font-family: Consolas, "Courier New", monospace;
  font-size: 12px;
  font-weight: 900;
}
.console-output strong { color: #fff; font-size: 17px; }
.console-output small { color: var(--muted); font-weight: 750; }
.orbit-label {
  position: absolute;
  z-index: 3;
  padding: 8px 11px;
  color: #08110f;
  background: var(--gold);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 950;
  box-shadow: 0 14px 30px rgba(0,0,0,.22);
  animation: labelDrift 5s ease-in-out infinite;
}
.label-a { top: 46px; right: -6px; }
.label-b { left: -16px; top: 230px; animation-delay: -1.4s; background: var(--teal); }
.label-c { right: 48px; bottom: 42px; animation-delay: -2.2s; background: var(--green); }

.compare, .deliverables, .flow, .pricing, .checkout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 64px 28px;
}
.compare {
  display: grid;
  grid-template-columns: .68fr 1.32fr;
  gap: 30px;
  align-items: start;
}
h2 { margin: 0 0 18px; font-size: clamp(30px, 3.4vw, 44px); line-height: 1.18; text-wrap: balance; }
h3 { margin: 0 0 10px; font-size: 20px; }
.compare-grid, .cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.cards { grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 24px; }
.compare article, .cards article, .price-card, .checkout-form {
  padding: 22px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .16);
  backdrop-filter: blur(14px);
}
.compare p, .cards p, .pricing p, .checkout p { color: var(--muted); font-weight: 650; }
.cards article { position: relative; overflow: hidden; }
.cards article::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--teal), var(--gold));
}

.flow ol {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  padding: 0;
  margin: 26px 0 0;
  list-style: none;
}
.flow li {
  min-height: 210px;
  padding: 24px;
  color: #fff;
  background: linear-gradient(180deg, rgba(49,218,184,.13), rgba(255,255,255,.05));
  border: 1px solid var(--line);
  border-radius: 8px;
}
.flow span {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 18px;
  background: var(--gold);
  color: #07100f;
  border-radius: 50%;
  font-weight: 950;
}
.flow p { color: #c6d6d3; }

.pricing, .checkout {
  display: grid;
  grid-template-columns: minmax(0, .86fr) minmax(360px, .54fr);
  gap: 28px;
  align-items: start;
}
.price-card { background: var(--panel-strong); }
.price-card span { color: var(--green); font-weight: 900; }
.price-card strong {
  display: block;
  margin: 10px 0;
  color: #fff;
  font-size: 44px;
  line-height: 1;
}
.price-card small { font-size: 16px; }
.price-card li { margin: 8px 0; font-weight: 800; }

.checkout-form { display: grid; gap: 14px; background: var(--panel-strong); }
.checkout-form label { display: grid; gap: 7px; color: #dffcf4; font-weight: 900; }
.checkout-form input {
  width: 100%;
  min-height: 48px;
  padding: 11px 12px;
  color: #f4fbf8;
  background: rgba(255,255,255,.07);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
}
.checkout-form input:focus { outline: 2px solid rgba(156,255,106,.42); outline-offset: 2px; }
.form-status { min-height: 24px; margin: 0; color: #dffcf4; font-weight: 850; }
.form-status.error { color: #ff9a9a; }
.form-status.success { color: var(--green); }
.form-note { margin: 0; font-size: 13px; }

.footer {
  padding: 28px;
  text-align: center;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(6, 12, 16, .78);
}

@keyframes consoleFloat {
  0%, 100% { transform: rotateX(2deg) rotateY(-4deg) translateY(0); }
  50% { transform: rotateX(1deg) rotateY(-2deg) translateY(-10px); }
}
@keyframes sweep {
  to { transform: translateX(72%); }
}
@keyframes scan {
  0% { transform: translateY(0); opacity: 0; }
  8%, 92% { opacity: 1; }
  100% { transform: translateY(300px); opacity: 0; }
}
@keyframes bars {
  0%, 100% { transform: scaleY(.74); filter: brightness(.9); }
  50% { transform: scaleY(1.05); filter: brightness(1.2); }
}
@keyframes labelDrift {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -9px, 0); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}

@media (max-width: 900px) {
  .site-header { align-items: flex-start; flex-direction: column; padding: 12px 18px; }
  .nav { gap: 12px; }
  .auth-actions { width: 100%; }
  .hero, .compare, .pricing, .checkout { grid-template-columns: 1fr; }
  .hero { padding-top: 44px; }
  .hero-visual { min-height: auto; }
  .neural-console { min-height: auto; transform: none; }
  .scan-stage { grid-template-columns: 1fr; }
  .cards, .compare-grid, .flow ol, .signal-list { grid-template-columns: 1fr; }
  .orbit-label { display: none; }
}

@media (max-width: 560px) {
  .brand img { width: 232px; }
  .auth-link, .auth-button { flex: 1; }
  .hero, .compare, .deliverables, .flow, .pricing, .checkout { padding-left: 18px; padding-right: 18px; }
  .hero h1 { font-size: 38px; }
  .signal-list div { min-height: 72px; }
  .console-output article { grid-template-columns: 1fr; }
}