:root {
  --brand: #5865f2;
  --brand-hover: #4752c4;
  --bg: #131417;
  --bg-elev: #1e1f22;
  --bg-elev2: #212328;
  --bg-elev3: #2a2c32;
  --text: #dbdee1;
  --text-sub: #9aa0a8;
  --text-muted: #6e727a;
  --divider: rgba(255, 255, 255, 0.06);
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: #0a0c16;
  background-image:
    radial-gradient(1200px 800px at 115% -10%, rgba(139, 111, 212, 0.28), transparent 55%),
    radial-gradient(1000px 700px at -15% 25%, rgba(88, 101, 242, 0.25), transparent 55%),
    radial-gradient(900px 600px at 50% 110%, rgba(45, 212, 191, 0.12), transparent 55%),
    linear-gradient(180deg, #0a0c16 0%, #10131f 45%, #0a0c16 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.no-scroll-y {
  overflow-x: hidden;
}

/* Snowfall */
#snow {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.main-wrap {
  position: relative;
  z-index: 2;
}

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

.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid var(--divider);
  background: rgba(20, 21, 24, 0.8);
  backdrop-filter: blur(12px);
  transition: transform 0.3s ease;
}

.nav.hidden {
  transform: translateY(-100%);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 56px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: #fff;
}

.brand-mark,
.footer-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--brand), #8b6fd4);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
}

.brand-name {
  font-size: 17px;
}

.brand-beta {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 2px 6px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 4px;
  color: var(--text-sub);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links a {
  padding: 6px 12px;
  font-size: 14px;
  color: var(--text-sub);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-links a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-cta {
  margin-left: auto;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  font-weight: 600;
  font-family: var(--font-sans);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-hover);
}

.btn-ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.btn-ghost:hover {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.04);
}

.btn-small {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
}

/* Hero */
.hero {
  padding: 150px 0 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 56px;
  align-items: center;
}

.eyebrow {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin: 0 0 20px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: #fff;
  margin: 0;
}

.grad {
  background: linear-gradient(120deg, #8b6fd4, var(--brand), #2dd4bf);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  margin: 24px 0 0;
  max-width: 460px;
  font-size: 17px;
  color: var(--text-sub);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-note {
  margin: 28px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

/* Product frame */
.hero-visual {
  position: relative;
}

.frame {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid var(--divider);
  background: var(--bg-elev);
  box-shadow: 0 24px 70px -20px rgba(0, 0, 0, 0.75);
}

.frame-title {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.4);
  background: #17181b;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background: #ed6a5e; }
.dot-yellow { background: #f4bf50; }
.dot-green { background: #61c454; }

.frame-name {
  margin-left: 8px;
  font-size: 11px;
  color: var(--text-muted);
}

.frame-body {
  display: flex;
  height: 398px;
  text-align: left;
}

.rail {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 58px;
  background: var(--bg);
  padding: 12px 0;
}

.rail-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--brand), #8b6fd4);
  color: #fff;
  font-weight: 800;
}

.rail-divider {
  width: 24px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.rail-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: #26282d;
  color: var(--text-sub);
  font-size: 12px;
  font-weight: 700;
}

.rail-icon.active {
  border-radius: 14px;
  background: var(--brand);
  color: #fff;
}

.channels {
  width: 172px;
  background: #1a1b1f;
  padding: 0 8px 8px;
}

.channels-head {
  display: flex;
  align-items: center;
  height: 44px;
  padding: 0 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.3);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.channel-label {
  margin: 12px 8px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.channel {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-sub);
}

.channel.active {
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
}

.ico {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.plugin-pill {
  margin-top: 14px;
  padding: 7px 10px;
  border-radius: 8px;
  background: rgba(88, 101, 242, 0.18);
  border: 1px solid rgba(88, 101, 242, 0.4);
  color: #aab3ff;
  font-size: 12px;
  font-weight: 600;
}

.chat {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
  background: var(--bg-elev2);
}

.chat-head {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 44px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.3);
  color: var(--text-sub);
  font-size: 13px;
}

.chat-head span {
  color: #fff;
  font-weight: 600;
}

.msgs {
  flex: 1;
  overflow: hidden;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.msg {
  display: flex;
  gap: 10px;
}

.avatar {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--c);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.msg-meta {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin: 0;
}

.msg-meta b {
  color: #fff;
  font-size: 13px;
}

.msg-meta time {
  font-size: 10px;
  color: var(--text-muted);
}

.msg-text {
  margin: 2px 0 0;
  font-size: 13px;
  color: #c4c9d0;
}

.tag {
  display: inline-block;
  margin-left: 4px;
  padding: 1px 6px;
  border-radius: 4px;
  background: rgba(88, 101, 242, 0.25);
  border: 1px solid rgba(88, 101, 242, 0.45);
  color: #aab3ff;
  font-size: 11px;
  font-weight: 600;
}

.composer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 16px 16px;
  padding: 9px 12px;
  border-radius: 8px;
  background: var(--bg-elev3);
}

.composer-plus {
  font-size: 16px;
  color: var(--text-muted);
}

.composer-text {
  font-size: 13px;
  color: var(--text-muted);
}

/* Specs */
.specs {
  border-top: 1px solid var(--divider);
  border-bottom: 1px solid var(--divider);
  padding: 0;
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-right: 1px solid var(--divider);
}

.specs-grid > div {
  padding: 26px;
  border-left: 1px solid var(--divider);
}

.spec-label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.spec-value {
  margin: 0;
  font-size: 14px;
  color: #c4c9d0;
}

/* Sections */
.section {
  padding: 96px 0;
  border-bottom: 1px solid var(--divider);
}

.section-alt {
  background: var(--bg-elev);
}

.section-title {
  margin: 0;
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
}

.section-sub {
  margin: 16px 0 0;
  max-width: 520px;
  font-size: 15px;
  color: var(--text-sub);
}

/* Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin-top: 56px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.card {
  padding: 28px 28px 28px 0;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.card:nth-child(3n) {
  border-right: none;
  padding-right: 0;
  padding-left: 28px;
}

.card:nth-child(3n + 2) {
  padding-left: 28px;
}

.card-index {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--brand);
}

.card-title {
  margin: 14px 0 0;
  font-size: 17px;
  font-weight: 700;
  color: #fff;
}

.card-body {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-sub);
}

/* Split / plugins */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.plugin-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.plugin-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--divider);
  transition: background 0.15s;
}

.plugin-row:hover {
  background: rgba(255, 255, 255, 0.06);
}

.plugin-ico {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 10px;
  background: var(--bg-elev3);
  font-size: 20px;
}

.plugin-row b {
  color: #fff;
  font-size: 15px;
}

.plugin-row p {
  margin: 2px 0 0;
  font-size: 13px;
  color: var(--text-sub);
}

/* Themes */
.themes-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
}

.themes-sub {
  max-width: 420px;
  margin: 0 0 4px;
}

.theme-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 48px;
}

.theme-card {
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--divider);
  background: var(--bg-elev);
  transition: border-color 0.2s, transform 0.2s;
}

.theme-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.theme-swatch {
  height: 64px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--tc), transparent);
}

.theme-name {
  margin: 14px 0 0;
  font-weight: 700;
  color: #fff;
}

.theme-desc {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-sub);
}

/* Code block */
.code-block {
  margin: 0;
  padding: 24px 28px;
  border-radius: 12px;
  background: #0d0e10;
  border: 1px solid var(--divider);
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.7;
  overflow-x: auto;
  color: #c4c9d0;
}

.c-comment { color: #6e727a; }
.c-var { color: #8b6fd4; }
.c-prop { color: #3aa8c1; }
.c-val { color: #2dd4bf; }

/* Download */
.download {
  border-bottom: none;
}

.download-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.download-inner .section-sub {
  text-align: center;
}

.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
  justify-content: center;
}

.download-note {
  margin: 28px 0 0;
  font-size: 12px;
  color: var(--text-muted);
}

.download-note a {
  color: #aab3ff;
  border-bottom: 1px solid rgba(170, 179, 255, 0.4);
}

.download-note a:hover {
  color: #fff;
}

/* Footer */
.footer {
  border-top: 1px solid var(--divider);
  background: var(--bg-elev);
  padding: 40px 0 24px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-logo {
  width: 34px;
  height: 34px;
}

.footer-title {
  margin: 0;
  font-weight: 700;
  color: #fff;
}

.footer-sub {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  font-size: 14px;
  color: #b5bac1;
}

.footer-links a:hover {
  color: #fff;
}

.footer-note {
  margin: 28px auto 0;
  font-size: 12px;
  color: #72767d;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero {
    padding-top: 130px;
  }

  .hero-copy {
    max-width: 600px;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .card:nth-child(3n) {
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    padding-right: 28px;
  }

  .card:nth-child(3n + 2) {
    padding-left: 28px;
  }

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

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

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .card,
  .card:nth-child(3n),
  .card:nth-child(3n + 2) {
    border-right: none;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .card:last-child {
    border-bottom: none;
  }

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

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

  .specs-grid > div {
    border-bottom: 1px solid var(--divider);
  }

  .themes-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .frame-body .channels {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}