* {
  box-sizing: border-box;
}

:root {
  --bg: #06030e;
  --bg-soft: rgba(14, 7, 29, 0.86);
  --panel: rgba(14, 7, 30, 0.82);
  --panel-strong: rgba(19, 10, 41, 0.94);
  --line: rgba(176, 84, 255, 0.24);
  --line-strong: rgba(202, 98, 255, 0.48);
  --text: #f1eaff;
  --muted: #c1b1d9;
  --soft: #8b7ba6;
  --magenta: #d53cff;
  --violet: #8a5cff;
  --green: #31ffb0;
  --cyan: #52e8ff;
  --rose: #ff75b5;
  --danger: #ff6b95;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
  --radius: 24px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 18%, rgba(213, 60, 255, 0.18), transparent 28rem),
    radial-gradient(circle at 88% 12%, rgba(49, 255, 176, 0.10), transparent 22rem),
    radial-gradient(circle at 50% 78%, rgba(82, 232, 255, 0.08), transparent 28rem),
    var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
}

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

.ambient {
  position: fixed;
  pointer-events: none;
  border-radius: 999px;
  filter: blur(120px);
  opacity: 0.45;
  z-index: -2;
}

.ambient-one {
  width: 34rem;
  height: 34rem;
  left: -10rem;
  top: 18rem;
  background: rgba(213, 60, 255, 0.25);
}

.ambient-two {
  width: 28rem;
  height: 28rem;
  right: -8rem;
  top: 54rem;
  background: rgba(49, 255, 176, 0.16);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: linear-gradient(to bottom, black 0%, rgba(0,0,0,0.65) 70%, transparent 100%);
}

.site-header {
  width: min(1180px, calc(100% - 40px));
  margin: 22px auto 0;
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 20px;
  position: sticky;
  top: 18px;
  z-index: 20;
  border: 1px solid var(--line);
  background: rgba(8, 4, 18, 0.78);
  backdrop-filter: blur(20px);
  border-radius: 999px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.32);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  letter-spacing: 0.16em;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--green);
  border: 1px solid rgba(49, 255, 176, 0.38);
  background: rgba(49, 255, 176, 0.08);
  box-shadow: inset 0 0 20px rgba(49, 255, 176, 0.08);
}

.brand-text {
  font-size: 0.9rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.94rem;
}

.nav a {
  transition: color 180ms ease, transform 180ms ease;
}

.nav a:hover {
  color: var(--green);
  transform: translateY(-1px);
}

.header-button,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-button,
.primary-button {
  color: #07120e;
  background: linear-gradient(135deg, var(--green), var(--cyan));
  box-shadow: 0 14px 40px rgba(49, 255, 176, 0.18);
}

.header-button:hover,
.primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 46px rgba(49, 255, 176, 0.24);
}

.secondary-button {
  border: 1px solid var(--line-strong);
  background: rgba(213, 60, 255, 0.08);
  color: var(--text);
}

.secondary-button:hover {
  transform: translateY(-2px);
  border-color: rgba(49, 255, 176, 0.55);
  background: rgba(49, 255, 176, 0.08);
}

main {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  min-height: calc(100vh - 120px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, 0.92fr);
  align-items: center;
  gap: 56px;
  padding: 64px 0 84px;
}

.eyebrow,
.section-kicker {
  color: var(--green);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.hero h1 {
  margin: 0;
  display: grid;
  gap: 10px;
  line-height: 0.98;
  font-size: clamp(3.4rem, 7vw, 6.8rem);
  letter-spacing: -0.055em;
}

.hero h1 span {
  color: var(--text);
  font-weight: 760;
}

.hero h1 strong {
  font-weight: 860;
  background: linear-gradient(135deg, var(--rose), var(--magenta), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-lead {
  max-width: 660px;
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.78;
  margin: 28px 0 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.hero-tags span,
.license-badges span {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.035);
  font-size: 0.88rem;
}

.hero-visual {
  min-height: 680px;
  position: relative;
}

.portrait-card {
  position: absolute;
  border: 1px solid var(--line-strong);
  border-radius: 30px;
  overflow: hidden;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.portrait-card img {
  display: block;
  width: 100%;
  height: auto;
}

.portrait-label {
  position: absolute;
  left: 18px;
  top: 18px;
  z-index: 2;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(6, 3, 14, 0.78);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.12);
  font-weight: 800;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.portrait-caption {
  padding: 18px 18px 20px;
  color: var(--muted);
  line-height: 1.6;
  font-size: 0.94rem;
  background: linear-gradient(to bottom, rgba(12, 6, 25, 0.92), rgba(12, 6, 25, 0.98));
}

.portrait-mistik {
  width: min(100%, 510px);
  left: 0;
  top: 22px;
}

.portrait-echo {
  width: 310px;
  right: 0;
  bottom: 38px;
  transform: rotate(2deg);
  border-color: rgba(49, 255, 176, 0.45);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 120px;
}

.principle-card,
.feature-card,
.api-card,
.license-panel,
.statement-panel,
.architecture-card {
  border: 1px solid var(--line);
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

.principle-card {
  padding: 28px;
}

.principle-card h3,
.feature-card h3,
.api-card h3,
.license-panel h3 {
  margin: 0 0 12px;
  font-size: 1.12rem;
}

.principle-card p,
.feature-card p,
.api-card p,
.license-panel li,
.section-copy p,
.section-heading p,
.cta-panel p {
  color: var(--muted);
  line-height: 1.75;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  gap: 40px;
  align-items: start;
}

.story,
.architecture-section,
.license-section {
  margin-bottom: 128px;
}

.section-copy h2,
.section-heading h2,
.cta-panel h2 {
  margin: 0 0 20px;
  font-size: clamp(2.2rem, 4vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.section-copy p {
  font-size: 1.06rem;
  margin: 0 0 18px;
}

.statement-panel {
  padding: 34px;
  position: sticky;
  top: 130px;
}

.statement-panel blockquote {
  margin: 0 0 28px;
  font-size: 1.54rem;
  line-height: 1.55;
  letter-spacing: -0.02em;
}

.statement-meta {
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 800;
}

.section-heading {
  margin-bottom: 36px;
  max-width: 820px;
}

.section-heading.compact {
  margin-bottom: 32px;
}

.comparison-section,
.features-section,
.api-section {
  margin-bottom: 128px;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1px 1fr;
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin-bottom: 28px;
}

.comparison-column {
  padding: 34px;
}

.comparison-column.full {
  background: linear-gradient(135deg, rgba(213,60,255,0.14), transparent 60%);
}

.comparison-column.echo {
  background: linear-gradient(135deg, rgba(49,255,176,0.12), transparent 60%);
}

.comparison-title {
  font-size: 1.7rem;
  font-weight: 850;
  margin-bottom: 18px;
}

.comparison-column ul,
.license-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
  line-height: 1.9;
}

.comparison-divider {
  background: var(--line);
}

.matrix-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.matrix {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.matrix th,
.matrix td {
  padding: 20px 22px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.matrix th {
  color: var(--green);
  font-size: 0.84rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.matrix td {
  color: var(--muted);
}

.matrix tbody tr:last-child td {
  border-bottom: 0;
}

.feature-grid,
.api-grid {
  display: grid;
  gap: 20px;
}

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

.feature-card {
  padding: 28px;
  min-height: 220px;
}

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

.api-card {
  padding: 28px;
}

.mono-pill {
  display: inline-block;
  max-width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(49,255,176,0.08);
  border: 1px solid rgba(49,255,176,0.22);
  color: var(--green) !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
  overflow-wrap: anywhere;
}

.arch-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 28px 0;
}

.arch-flow span {
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
}

.arch-flow i {
  color: var(--green);
  font-style: normal;
  font-weight: 800;
}

.architecture-card {
  padding: 24px;
}

.terminal-title {
  color: var(--green);
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 800;
  margin-bottom: 18px;
}

.architecture-card pre {
  margin: 0;
  overflow-x: auto;
  color: #eafcf6;
  line-height: 1.8;
  font-size: 0.94rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

.license-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.license-panel {
  padding: 32px;
}

.cta-section {
  margin-bottom: 88px;
}

.cta-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 34px;
  background:
    linear-gradient(135deg, rgba(213,60,255,0.18), rgba(49,255,176,0.08)),
    var(--panel-strong);
  box-shadow: var(--shadow);
}

.cta-panel h2 {
  margin-bottom: 10px;
}

.cta-panel p {
  margin: 0;
  max-width: 650px;
}

.cta-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 0 0 auto;
}

.site-footer {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 40px;
  padding: 26px 0 10px;
  color: var(--soft);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
}

.site-footer p {
  margin: 0;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms ease, transform 700ms ease;
}

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

@media (max-width: 1080px) {
  .site-header {
    border-radius: 28px;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero,
  .split-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-visual {
    min-height: 760px;
  }

  .portrait-mistik {
    width: min(100%, 620px);
  }

  .portrait-echo {
    width: 320px;
    right: 30px;
  }

  .principles,
  .feature-grid,
  .api-grid {
    grid-template-columns: 1fr;
  }

  .statement-panel {
    position: relative;
    top: auto;
  }

  .cta-panel {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-actions {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 760px) {
  main,
  .site-header,
  .site-footer {
    width: min(100% - 26px, 1180px);
  }

  .site-header {
    position: relative;
    top: auto;
    margin-top: 14px;
  }

  .nav {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
    gap: 14px;
  }

  .header-button {
    width: 100%;
  }

  .hero {
    min-height: auto;
    gap: 38px;
  }

  .hero h1 {
    font-size: clamp(2.8rem, 15vw, 4.7rem);
  }

  .hero-lead {
    font-size: 1rem;
  }

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

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

  .hero-visual {
    min-height: auto;
    display: grid;
    gap: 22px;
  }

  .portrait-card {
    position: relative;
    inset: auto;
    width: 100%;
    transform: none;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .comparison-divider {
    height: 1px;
  }

  .section-copy h2,
  .section-heading h2,
  .cta-panel h2 {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .statement-panel blockquote {
    font-size: 1.22rem;
  }

  .cta-panel {
    padding: 28px;
  }

  .site-footer {
    flex-direction: column;
  }
}