:root {
  --obsidian: #0b0b0b;
  --gunmetal: #171a1c;
  --panel: #101214;
  --line: #272b2e;
  --text: #e7e7e4;
  --text-muted: #a3aaa7;
  --accent: #d9b870;
  --accent-soft: rgba(217, 184, 112, 0.24);
  --max-width: 1160px;
  --header-height: 76px;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--obsidian);
  font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
}

.background-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(circle at center, black 22%, transparent 78%);
  opacity: 0.36;
  z-index: -3;
}

.background-orb {
  position: fixed;
  border-radius: 999px;
  pointer-events: none;
  filter: blur(52px);
  z-index: -2;
}

.orb-one {
  width: 420px;
  height: 420px;
  top: -120px;
  right: -130px;
  background: var(--accent-soft);
  transform: translate3d(0, calc(var(--motion-y, 0px) * 0.1), 0);
}

.orb-two {
  width: 360px;
  height: 360px;
  bottom: -160px;
  left: -100px;
  background: rgba(126, 141, 160, 0.16);
  transform: translate3d(0, calc(var(--motion-y, 0px) * -0.08), 0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  padding: 14px 24px;
  background: rgba(11, 11, 11, 0.86);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand {
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font: 700 0.76rem/1 "Montserrat", sans-serif;
  color: var(--text);
}

.main-nav {
  display: none;
  gap: 30px;
}

.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--text);
}

.section {
  width: min(var(--max-width), calc(100% - 40px));
  margin: 0 auto;
  padding: 72px 0;
}

.hero {
  min-height: calc(100vh - var(--header-height));
  display: grid;
  align-items: center;
  gap: 34px;
  padding-top: 40px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font: 700 0.74rem/1.2 "Montserrat", sans-serif;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Montserrat", sans-serif;
}

h1 {
  font-size: clamp(2rem, 7vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  max-width: 15ch;
}

h2 {
  font-size: clamp(1.5rem, 3.8vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1rem, 2.4vw, 1.38rem);
}

.lead {
  max-width: 60ch;
  margin: 20px 0 0;
  color: var(--text-muted);
  font-size: clamp(1rem, 2.2vw, 1.14rem);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 999px;
  text-decoration: none;
  font: 700 0.84rem/1 "Montserrat", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  border: 1px solid transparent;
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease,
    background-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button-fill {
  background: var(--accent);
  color: #171209;
}

.button-line {
  border-color: var(--line);
  color: var(--text);
}

.button-ghost {
  border-color: var(--line);
  color: var(--text-muted);
}

.button-line:hover,
.button-line:focus-visible,
.button-ghost:hover,
.button-ghost:focus-visible {
  color: var(--text);
  border-color: var(--accent);
}

.hero-panel,
.pillar-card,
.phase-card,
.snapshot,
.model-card,
.apply-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(23, 26, 28, 0.84), rgba(16, 18, 20, 0.84));
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: 22px;
}

.hero-panel h2 {
  font-size: 1.16rem;
  text-transform: uppercase;
}

.hero-panel ul {
  margin: 18px 0;
  padding-left: 18px;
  color: var(--text-muted);
}

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

.signal-line {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  margin: 16px 0;
}

.panel-note {
  color: var(--text-muted);
  margin: 0;
  font-size: 0.95rem;
}

.section-heading {
  max-width: 70ch;
}

.subtle {
  margin-top: 14px;
  color: var(--text-muted);
}

.pillar-grid {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.pillar-card {
  padding: 24px;
}

.pillar-card p {
  margin: 12px 0 0;
  color: var(--text-muted);
}

.phase-flow {
  display: grid;
  gap: 18px;
  margin-top: 30px;
}

.phase-card {
  position: relative;
  padding: 22px;
}

.phase-card p {
  margin: 12px 0 0;
  color: var(--text-muted);
}

.phase-number {
  display: inline-flex;
  margin-bottom: 12px;
  color: var(--accent);
  font-family: "Montserrat", sans-serif;
  font-size: 0.95rem;
  letter-spacing: 0.14em;
}

.phase-connector {
  display: none;
}

.snapshot-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.snapshot {
  padding: 22px;
}

.snapshot p {
  margin: 12px 0 0;
  color: var(--text-muted);
}

.mockup {
  margin-top: 16px;
  min-height: 130px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, rgba(217, 184, 112, 0.09), rgba(217, 184, 112, 0));
}

.mockup-funnel span {
  display: block;
  height: 14px;
  margin-bottom: 12px;
  background: rgba(255, 255, 255, 0.13);
  border-radius: 999px;
}

.mockup-funnel span:nth-child(1) {
  width: 94%;
}

.mockup-funnel span:nth-child(2) {
  width: 78%;
}

.mockup-funnel span:nth-child(3) {
  width: 58%;
}

.mockup-funnel span:nth-child(4) {
  width: 34%;
  margin-bottom: 0;
}

.mockup-hierarchy {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.mockup-hierarchy span {
  display: block;
  min-height: 24px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.16);
}

.mockup-hierarchy span:first-child {
  grid-column: 1 / -1;
  min-height: 34px;
}

.mockup-graph {
  display: flex;
  align-items: end;
  gap: 10px;
}

.mockup-graph span {
  width: 100%;
  border-radius: 8px 8px 0 0;
  background: linear-gradient(180deg, var(--accent), rgba(217, 184, 112, 0.24));
}

.mockup-graph span:nth-child(1) {
  height: 24%;
}

.mockup-graph span:nth-child(2) {
  height: 37%;
}

.mockup-graph span:nth-child(3) {
  height: 54%;
}

.mockup-graph span:nth-child(4) {
  height: 70%;
}

.mockup-graph span:nth-child(5) {
  height: 88%;
}

.model-section {
  padding-top: 24px;
}

.model-card {
  padding: 28px;
}

.model-card p {
  margin: 14px 0 0;
  color: var(--text-muted);
  max-width: 68ch;
}

.apply-grid {
  display: grid;
  gap: 16px;
  margin-top: 30px;
}

.apply-card {
  padding: 22px;
}

.apply-card p {
  margin-top: 12px;
  color: var(--text-muted);
}

.embed-switch {
  margin-top: 14px;
  display: inline-flex;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
  background: rgba(255, 255, 255, 0.03);
}

.switch-btn {
  border: 0;
  padding: 9px 14px;
  border-radius: 999px;
  background: transparent;
  color: var(--text-muted);
  font: 700 0.74rem/1 "Montserrat", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  cursor: pointer;
}

.switch-btn.is-active {
  color: #171209;
  background: var(--accent);
}

.embed-wrap {
  position: relative;
  margin-top: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  min-height: 440px;
  background: rgba(0, 0, 0, 0.24);
  overflow: hidden;
}

.embed-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 10px;
  text-align: center;
  padding: 22px;
  background: linear-gradient(160deg, rgba(23, 26, 28, 0.92), rgba(16, 18, 20, 0.9));
}

.embed-title {
  margin: 0;
  color: var(--text);
  font: 700 1rem/1.3 "Montserrat", sans-serif;
  letter-spacing: 0.02em;
}

.embed-help {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  max-width: 42ch;
}

.embed-wrap iframe {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 440px;
  border: 0;
  background: transparent;
}

.embed-wrap.is-empty iframe {
  opacity: 0;
  pointer-events: none;
}

.embed-wrap:not(.is-empty) .embed-placeholder {
  display: none;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 20px;
  width: min(var(--max-width), calc(100% - 40px));
  margin: 12px auto 44px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 760px) {
  .site-header {
    padding-inline: 28px;
  }

  .hero {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 24px;
  }

  .pillar-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .phase-flow {
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
  }

  .phase-connector {
    display: block;
    height: 1px;
    width: 100%;
    background: linear-gradient(90deg, var(--accent), transparent);
  }

  .snapshot-grid {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 980px) {
  .main-nav {
    display: inline-flex;
  }
}