:root {
  --bg-0: 10 12 16;
  --bg-1: 15 18 24;
  --bg-2: 20 24 32;
  --bg-3: 28 33 44;
  --border: 38 44 58;
  --fg: 232 236 244;
  --fg-muted: 160 170 190;
  --accent: 79 209 197;
  --accent-2: 56 189 248;
  --accent-3: 37 99 235;
  --radius: 12px;
  --font: "Inter", ui-sans-serif, system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: rgb(var(--bg-0));
  color: rgb(var(--fg));
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: rgb(var(--accent));
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.bg-glow {
  position: fixed;
  inset: -20% -10% auto;
  height: 70vh;
  background:
    radial-gradient(ellipse 60% 50% at 20% 0%, rgba(79, 209, 197, 0.18), transparent 60%),
    radial-gradient(ellipse 50% 40% at 80% 10%, rgba(37, 99, 235, 0.2), transparent 55%),
    radial-gradient(ellipse 40% 30% at 50% 80%, rgba(56, 189, 248, 0.08), transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid rgb(var(--border) / 0.6);
  background: rgb(var(--bg-0) / 0.82);
  backdrop-filter: blur(12px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: rgb(var(--fg));
  font-weight: 600;
  font-size: 1.05rem;
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.nav {
  display: flex;
  gap: 1.25rem;
  margin-left: auto;
}

.nav a {
  color: rgb(var(--fg-muted));
  font-size: 0.9rem;
  text-decoration: none;
}

.nav a:hover {
  color: rgb(var(--fg));
}

.header-cta {
  margin-left: 0.5rem;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0.35rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgb(var(--fg));
  border-radius: 1px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.65rem 1.25rem;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, opacity 0.15s, box-shadow 0.15s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, rgb(var(--accent)), rgb(var(--accent-2)));
  color: #0a0c10;
  box-shadow: 0 8px 28px rgb(var(--accent) / 0.25);
}

.btn-primary:hover {
  box-shadow: 0 12px 36px rgb(var(--accent) / 0.35);
}

.btn-ghost {
  background: rgb(var(--bg-2));
  border-color: rgb(var(--border));
  color: rgb(var(--fg));
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.85rem 1.75rem;
  font-size: 1.05rem;
}

main {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 3rem;
  align-items: center;
  padding: 4rem 0 3rem;
  min-height: min(88vh, 820px);
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgb(var(--accent));
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.35rem);
  line-height: 1.12;
  font-weight: 700;
  margin: 0 0 1.25rem;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, rgb(var(--accent)), rgb(var(--accent-2)));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead {
  font-size: 1.12rem;
  color: rgb(var(--fg-muted));
  max-width: 34rem;
  margin: 0 0 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.hero-note {
  font-size: 0.85rem;
  color: rgb(var(--fg-muted));
  margin: 0;
}

.hero-note strong {
  color: rgb(var(--fg));
  font-weight: 500;
}

/* IDE mock */
.ide-window {
  border-radius: var(--radius);
  border: 1px solid rgb(var(--border));
  background: rgb(var(--bg-1));
  box-shadow:
    0 0 0 1px rgb(0 0 0 / 0.3),
    0 24px 80px rgb(0 0 0 / 0.45),
    0 0 120px rgb(var(--accent) / 0.08);
  overflow: hidden;
}

.ide-titlebar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.85rem;
  background: rgb(var(--bg-2));
  border-bottom: 1px solid rgb(var(--border));
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot.red {
  background: #ef4444;
}
.dot.yellow {
  background: #eab308;
}
.dot.green {
  background: #22c55e;
}

.ide-title {
  margin-left: 0.5rem;
  font-size: 0.72rem;
  color: rgb(var(--fg-muted));
  font-family: var(--mono);
}

.ide-body {
  display: grid;
  grid-template-columns: 72px 1fr 140px;
  min-height: 280px;
}

.ide-sidebar {
  padding: 0.75rem 0.5rem;
  border-right: 1px solid rgb(var(--border));
  background: rgb(var(--bg-0));
}

.ide-tree {
  height: 8px;
  border-radius: 4px;
  background: rgb(var(--bg-3));
  margin-bottom: 0.45rem;
  width: 85%;
}

.ide-tree.short {
  width: 55%;
}

.ide-editor {
  padding: 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.55;
  overflow: hidden;
}

.ide-editor pre {
  margin: 0;
}

.kw {
  color: #c084fc;
}
.str {
  color: #4fd1c5;
}
.num {
  color: #fbbf24;
}
.cm {
  color: rgb(var(--fg-muted));
}

.ide-chat {
  padding: 0.65rem;
  border-left: 1px solid rgb(var(--border));
  background: rgb(var(--bg-0));
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.chat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgb(var(--fg-muted));
  margin: 0 0 0.25rem;
}

.chat-bubble {
  font-size: 0.62rem;
  padding: 0.4rem 0.5rem;
  border-radius: 6px;
  line-height: 1.35;
}

.chat-bubble.user {
  background: rgb(var(--bg-2));
  align-self: flex-end;
  max-width: 95%;
}

.chat-bubble.ai {
  background: rgb(var(--accent) / 0.12);
  border: 1px solid rgb(var(--accent) / 0.25);
}

.logos-strip {
  text-align: center;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid rgb(var(--border) / 0.5);
}

.logos-strip p {
  margin: 0;
  font-size: 1.1rem;
  color: rgb(var(--fg-muted));
  letter-spacing: -0.02em;
}

.section {
  padding: 4.5rem 0;
}

.section-head {
  text-align: center;
  max-width: 36rem;
  margin: 0 auto 3rem;
}

.section-head h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}

.section-head p {
  color: rgb(var(--fg-muted));
  margin: 0;
}

.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.bento-card {
  padding: 1.35rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid rgb(var(--border));
  background: rgb(var(--bg-1) / 0.7);
  transition: border-color 0.2s, transform 0.2s;
}

.bento-card:hover {
  border-color: rgb(var(--accent) / 0.4);
  transform: translateY(-2px);
}

.bento-card.span-2 {
  grid-column: span 2;
}

.bento-card.highlight {
  background: linear-gradient(135deg, rgb(var(--bg-2)), rgb(var(--accent) / 0.08));
}

.bento-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.bento-card p {
  margin: 0;
  font-size: 0.92rem;
  color: rgb(var(--fg-muted));
}

.agent-section {
  background: rgb(var(--bg-1) / 0.4);
  border-radius: calc(var(--radius) + 4px);
  padding: 3rem 2rem !important;
  margin: 0 -0.5rem;
  border: 1px solid rgb(var(--border) / 0.6);
}

.agent-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.agent-grid h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
}

.agent-grid > div > p {
  color: rgb(var(--fg-muted));
  margin: 0 0 1.25rem;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
  color: rgb(var(--fg-muted));
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: rgb(var(--accent));
  font-weight: 700;
}

.agent-panel {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.agent-step {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid rgb(var(--border));
  background: rgb(var(--bg-0));
  font-size: 0.92rem;
  color: rgb(var(--fg-muted));
}

.agent-step span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 8px;
  background: rgb(var(--bg-2));
  font-size: 0.8rem;
  font-weight: 700;
  color: rgb(var(--accent));
  flex-shrink: 0;
}

.agent-step.active {
  border-color: rgb(var(--accent) / 0.5);
  background: rgb(var(--accent) / 0.08);
  color: rgb(var(--fg));
}

.download-section {
  padding-bottom: 2rem;
}

.download-card {
  text-align: center;
  padding: 3.5rem 2rem;
  border-radius: calc(var(--radius) + 6px);
  border: 1px solid rgb(var(--border));
  background: linear-gradient(180deg, rgb(var(--bg-1)), rgb(var(--bg-0)));
  box-shadow: 0 20px 60px rgb(0 0 0 / 0.35);
}

.download-card h2 {
  margin: 0 0 0.75rem;
  font-size: 2rem;
}

.download-card > p {
  color: rgb(var(--fg-muted));
  max-width: 28rem;
  margin: 0 auto 1.75rem;
}

.download-meta {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  color: rgb(var(--fg-muted));
}

.download-alt {
  margin: 1.25rem 0 0;
  font-size: 0.88rem;
  color: rgb(var(--fg-muted));
}

.site-footer {
  border-top: 1px solid rgb(var(--border) / 0.6);
  padding: 2rem 1.5rem;
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-foot {
  color: rgb(var(--fg-muted));
  font-size: 0.9rem;
}

.site-footer nav {
  display: flex;
  gap: 1.25rem;
}

.site-footer nav a {
  color: rgb(var(--fg-muted));
  font-size: 0.9rem;
  text-decoration: none;
}

.site-footer nav a:hover {
  color: rgb(var(--fg));
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

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

  .bento-card.span-2 {
    grid-column: span 1;
  }

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

  .ide-body {
    grid-template-columns: 56px 1fr;
  }

  .ide-chat {
    display: none;
  }
}

@media (max-width: 720px) {
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 1rem 1.5rem;
    background: rgb(var(--bg-1));
    border-bottom: 1px solid rgb(var(--border));
  }

  .nav.open {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
    margin-left: auto;
  }

  .site-header {
    flex-wrap: wrap;
    position: relative;
  }
}