:root {
  --bg: #070709;
  --surface: rgba(18, 18, 22, 0.72);
  --surface-2: rgba(26, 26, 32, 0.78);
  --line: rgba(255, 255, 255, 0.09);
  --text: #f4f4f5;
  --muted: #a1a1aa;
  --soft: #71717a;
  --white: #ffffff;
  --black: #09090b;
  --amber: #f59e0b;
  --rose: #fb7185;
  --green: #22c55e;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
  --radius: 28px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  user-select: none;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 4%, rgba(255,255,255,0.08), transparent 28rem),
    radial-gradient(circle at 76% 14%, rgba(120,120,140,0.14), transparent 30rem),
    linear-gradient(180deg, #08080a 0%, #0d0d10 44%, #070709 100%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  overflow-x: hidden;
    height: 100%;
  overflow-y: auto;
  user-select: none;
}

/* ===== Loader + Fade-in ===== */

/* Hide app until loader completes */
.app-hidden {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 700ms ease, transform 700ms ease;
}
.app-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Fullscreen overlay */
#siteLoader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: radial-gradient(
    1200px 800px at 50% 40%,
    rgba(255, 255, 255, 0.06),
    rgba(5, 5, 5, 1) 55%
  );
  display: grid;
  place-items: center;
  overflow: hidden;
  transition: opacity 650ms ease, visibility 650ms ease;
  opacity: 1;
  visibility: visible;
}

/* Optional subtle moving noise (cheap + nice) */
#siteLoader::before {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
      circle at 30% 30%,
      rgba(255, 255, 255, 0.05),
      transparent 40%
    ),
    radial-gradient(
      circle at 70% 60%,
      rgba(255, 255, 255, 0.04),
      transparent 45%
    ),
    radial-gradient(
      circle at 45% 80%,
      rgba(255, 255, 255, 0.03),
      transparent 55%
    );
  filter: blur(18px);
  opacity: 0.85;
  animation: loaderFloat 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes loaderFloat {
  0% {
    transform: translate3d(-2%, -1%, 0) scale(1.02);
  }
  50% {
    transform: translate3d(2%, 1.5%, 0) scale(1.04);
  }
  100% {
    transform: translate3d(-2%, -1%, 0) scale(1.02);
  }
}

#siteLoader.loader-out {
  opacity: 0;
  visibility: hidden;
}

/* Inner layout */
.loader-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 16px;
  justify-items: center;
  text-align: center;
  padding: 28px 26px;
}

.loader-title {
  font-size: 18px;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  color: rgba(255, 255, 255, 0.92);
}

.loader-sub {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.45);
}

/* SVG animations */
.loader-svg {
  display: block;
}

.spin {
  transform-origin: 60px 60px;
  animation: spin 1.35s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.orbit {
  transform-origin: 60px 60px;
  animation: orbit 1.05s ease-in-out infinite alternate;
}
@keyframes orbit {
  from {
    transform: rotate(0deg) scale(0.98);
    opacity: 0.75;
  }
  to {
    transform: rotate(65deg) scale(1.03);
    opacity: 1;
  }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .spin,
  .orbit,
  #siteLoader::before {
    animation: none !important;
  }
  .app-hidden,
  .app-visible,
  #siteLoader {
    transition: none !important;
  }
}

body::before {
  content: "";
  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: 72px 72px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.85), transparent 72%);
  z-index: -2;
}

.noise {
  position: fixed;
  inset: 0;
  opacity: 0.07;
  pointer-events: none;
  z-index: -1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E");
}

img {
  max-width: 100%;
  display: block;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: min(1180px, calc(100% - 32px));
  margin: 18px auto 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(9, 9, 11, 0.72);
  backdrop-filter: blur(22px);
  box-shadow: 0 16px 60px rgba(0,0,0,0.22);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: fit-content;
}

.brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.brand span {
  display: grid;
  gap: 1px;
}

.brand strong {
  font-size: 14px;
  letter-spacing: -0.02em;
}

.brand small {
  font-size: 9px;
  color: var(--muted);
  font-weight: 800;
  letter-spacing: 0.18em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}

.nav-links a,
.nav-github {
  padding: 9px 13px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  transition: 180ms ease;
}

.nav-links a:hover,
.nav-github:hover {
  background: rgba(255,255,255,0.08);
  color: var(--white);
}

.nav-github {
  border: 1px solid rgba(255,255,255,0.09);
  background: rgba(255,255,255,0.04);
}

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

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 54px;
  align-items: center;
  padding: 86px 0 70px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.eyebrow span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--green);
  box-shadow: 0 0 22px rgba(34, 197, 94, 0.65);
}

.hero h1,
.section-heading h2,
.download-card h2 {
  margin: 18px 0 0;
  color: var(--text);
  line-height: 0.95;
  letter-spacing: -0.065em;
}

.hero h1 {
  max-width: 620px;
  font-size: clamp(48px, 7vw, 86px);
}

.hero p,
.section-heading p,
.download-card p {
  color: var(--muted);
  font-size: 16px;
  max-width: 640px;
}

.hero p {
  margin: 24px 0 0;
}

.hero-actions,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 15px;
  font-size: 13px;
  font-weight: 850;
  letter-spacing: -0.01em;
  transition: 180ms ease;
}

.button.primary {
  background: var(--white);
  color: var(--black);
  box-shadow: 0 18px 48px rgba(255,255,255,0.12);
}

.button.primary:hover {
  transform: translateY(-1px);
  background: #e4e4e7;
}

.button.secondary {
  border: 1px solid rgba(255,255,255,0.1);
  background: rgba(255,255,255,0.045);
  color: var(--text);
}

.button.secondary:hover {
  transform: translateY(-1px);
  background: rgba(255,255,255,0.08);
}

.button.wide {
  width: 100%;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.hero-meta span {
  padding: 7px 10px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  background: rgba(255,255,255,0.035);
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
}

.hero-visual {
  position: relative;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 12% 4% auto auto;
  width: 360px;
  height: 360px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  filter: blur(80px);
  z-index: -1;
}

.app-frame {
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 30px;
  background: linear-gradient(180deg, rgba(255,255,255,0.12), rgba(255,255,255,0.045));
  box-shadow: var(--shadow);
  overflow: hidden;
}

.window-bar {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  background: rgba(10, 10, 12, 0.72);
  color: var(--muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.traffic {
  position: absolute;
  left: 18px;
  display: flex;
  gap: 7px;
}

.traffic i {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.app-body {
  display: grid;
  grid-template-columns: 190px 1fr;
  min-height: 520px;
  background: rgba(6, 6, 8, 0.92);
}

.mock-sidebar {
  padding: 18px;
  border-right: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.025);
}

.mock-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.mock-brand img {
  width: 34px;
  height: 34px;
}

.mock-brand b {
  display: block;
  font-size: 12px;
}

.mock-brand small {
  display: block;
  color: var(--soft);
  font-size: 7px;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.side-pill {
  margin: 7px 0;
  padding: 10px 12px;
  border-radius: 13px;
  color: var(--soft);
  font-size: 11px;
  font-weight: 800;
}

.side-pill.active {
  background: var(--white);
  color: var(--black);
}

.mock-main {
  padding: 22px;
}

.mock-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.mock-topline span,
.metric-card small,
.training-card small,
.flow-card small,
.preview-card small {
  color: var(--soft);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.mock-topline b {
  padding: 8px 10px;
  border-radius: 11px;
  background: rgba(255,255,255,0.08);
  font-size: 11px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.metric-card,
.training-card,
.kernel-card,
.feature-card,
.flow-card,
.preview-card,
.download-card {
  border: 1px solid rgba(255,255,255,0.09);
  background: var(--surface);
  border-radius: 22px;
  max-width: 94vw;
}

.metric-card {
  padding: 14px;
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 18px;
  letter-spacing: -0.04em;
}

.training-card {
  margin-top: 12px;
  padding: 18px;
}

.training-card strong {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  color: #e4e4e7;
  word-break: break-all;
}

.progress {
  height: 8px;
  margin-top: 18px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}

.progress span {
  display: block;
  width: 68%;
  height: 100%;
  background: linear-gradient(90deg, #ffffff, #a1a1aa);
  border-radius: inherit;
}

.kernel-card {
  margin-top: 12px;
  padding: 16px;
  display: grid;
  gap: 8px;
}

.kernel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.kernel-head b {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.kernel-head span {
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(34,197,94,0.12);
  color: #bbf7d0;
  font-size: 9px;
  font-weight: 900;
}

code {
  font-family: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

.kernel-card code,
.terminal-preview code {
  display: block;
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: #d4d4d8;
  font-size: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kernel-card code.warn,
.terminal-preview .line-warning {
  background: rgba(245,158,11,0.14);
  color: #fde68a;
}

.terminal-preview .line-error {
  background: rgba(244,63,94,0.14);
  color: #fecdd3;
}

.section-heading {
  margin-bottom: 34px;
}

.section-heading h2,
.download-card h2 {
  font-size: clamp(34px, 5vw, 62px);
}

.section-heading p {
  margin-top: 16px;
}

.capabilities,
.workflow,
.interface,
.download-section {
  padding: 74px 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.feature-card {
  padding: 24px;
  min-height: 230px;
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: "";
  position: absolute;
  right: -30px;
  top: -30px;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background: rgba(255,255,255,0.055);
  filter: blur(8px);
}

.icon-token {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-size: 11px;
  font-weight: 900;
  margin-bottom: 46px;
}

.feature-card h3 {
  margin: 0;
  font-size: 21px;
  letter-spacing: -0.04em;
}

.feature-card p {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.workflow-panel {
  display: grid;
  grid-template-columns: 1fr 72px 1fr 72px 1fr;
  align-items: center;
}

.flow-card {
  min-height: 220px;
  padding: 26px;
}

.flow-card strong {
  display: block;
  margin-top: 12px;
  font-size: 22px;
  letter-spacing: -0.04em;
}

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

.flow-line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.42), transparent);
}

.interface-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.3fr 0.85fr;
  gap: 14px;
}

.preview-column {
  display: grid;
  gap: 14px;
}

.preview-card {
  padding: 20px;
  min-height: 180px;
}

.preview-card.tall {
  min-height: 280px;
}

.preview-title {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.preview-title span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--white);
}

.project-row,
.form-row {
  padding: 14px 0;
  border-top: 1px solid rgba(255,255,255,0.07);
}

.project-row b,
.form-row em {
  display: block;
  margin-top: 6px;
  color: #e4e4e7;
  font-size: 12px;
  font-style: normal;
  word-break: break-all;
}

.terminal-preview {
  min-height: 340px;
}

.terminal-preview code {
  margin-bottom: 10px;
}

.terminal-preview i {
  color: var(--soft);
  margin-right: 14px;
  font-style: normal;
}

.terminal-preview b {
  display: inline-block;
  min-width: 42px;
  margin-right: 10px;
}

.trainer-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.trainer-strip div {
  padding: 18px;
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 18px;
  background: rgba(255,255,255,0.045);
}

.trainer-strip small {
  display: block;
  color: var(--soft);
  font-size: 9px;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.trainer-strip strong {
  display: block;
  margin-top: 6px;
  font-size: 14px;
}

.preview-card p,
.preview-card li {
  color: var(--muted);
  font-size: 14px;
}

.preview-card ul {
  margin: 0;
  padding-left: 18px;
}

.download-card {
  padding: clamp(28px, 6vw, 54px);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.12), rgba(255,255,255,0.035)),
    rgba(20,20,24,0.8);
}

.download-card p {
  margin-top: 18px;
}

.site-footer {
  width: min(1180px, calc(100% - 32px));
  margin: 34px auto 46px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--soft);
}

.brand.small img {
  width: 34px;
  height: 34px;
}

.site-footer p {
  margin: 0;
  font-size: 12px;
}

@media (max-width: 980px) {
  .site-header {
    position: relative;
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: space-between;
    overflow-x: auto;
  }

  .hero,
  .download-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 58px;
  }

  .feature-grid,
  .interface-grid,
  .trainer-strip {
    grid-template-columns: 1fr;
  }

  .workflow-panel {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .flow-line {
    height: 40px;
    width: 1px;
    justify-self: center;
    background: linear-gradient(180deg, transparent, rgba(255,255,255,0.42), transparent);
  }

  .app-body {
    grid-template-columns: 1fr;
  }

  .mock-sidebar {
    display: none;
  }
}

@media (max-width: 640px) {
  .section-shell,
  .site-header,
  .site-footer {
    width: min(100% - 22px, 1180px);
  }
  
  .nav-links { font-size: 5px; gap: 0px; padding: 0px; }
  
  .nav-links a { font-size: 12px; padding: 9px 11px; }

  .hero h1 {
    font-size: 46px;
  }

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

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }
}