:root {
  --bg: #061018;
  --panel: rgba(11, 18, 31, 0.92);
  --panel-strong: rgba(7, 11, 21, 0.94);
  --surface: rgba(11, 18, 31, 0.72);
  --surface-raised: rgba(255, 255, 255, 0.06);
  --terminal-bg: #0b0d12;
  --window-bg: rgba(12, 17, 29, 0.88);
  --window-body-bg: rgba(10, 15, 26, 0.82);
  --window-border: rgba(255, 255, 255, 0.2);
  --window-header-bg: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08),
    rgba(255, 255, 255, 0.02)
  );
  --window-header-border: rgba(255, 255, 255, 0.1);
  --line: rgba(255, 255, 255, 0.12);
  --text: #eff4ff;
  --muted: rgba(239, 244, 255, 0.72);
  --shadow: 0 30px 90px rgba(0, 0, 0, 0.35);
  font-family: "IBM Plex Sans", "Avenir Next", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(6, 16, 24, 0.34), rgba(6, 16, 24, 0.92)),
    radial-gradient(circle at 20% 12%, rgba(99, 168, 255, 0.24), transparent 32%),
    radial-gradient(circle at 78% 82%, rgba(123, 224, 167, 0.14), transparent 28%),
    var(--bg);
}

.landing-shell {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto auto;
  align-content: center;
  justify-items: center;
  gap: clamp(1rem, 2.4vh, 2rem);
  overflow-x: hidden;
  padding: clamp(1.25rem, 4vw, 2rem);
}

.landing-hero {
  width: min(100%, 110rem);
  display: grid;
  grid-template-columns: minmax(20rem, 34rem) minmax(38rem, 1fr);
  align-items: stretch;
  gap: clamp(2rem, 4vw, 3rem);
}

.landing-hero-copy {
  width: 100%;
  max-width: 32rem;
  padding-inline: clamp(1rem, 2vw, 2rem);
  align-self: center;
  justify-self: center;
  text-align: center;
}

.landing-logo {
  width: min(100%, 20rem);
  height: auto;
  margin-bottom: 1.35rem;
  filter: drop-shadow(0 22px 46px rgba(0, 0, 0, 0.34));
}

.landing-kicker,
.capability-grid span {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.landing-hero h1 {
  margin: 0.65rem 0 0;
  font-size: 4rem;
  line-height: 0.95;
  letter-spacing: 0;
}

.landing-copy {
  max-width: 36rem;
  margin: 1rem auto 0;
  color: var(--muted);
  font-size: 1.12rem;
  line-height: 1.55;
}

.landing-button {
  margin: 1.35rem auto 0;
  width: min(100%, 16.25rem);
  display: inline-flex;
  align-items: center;
  border-radius: 8px;
  color: inherit;
  text-decoration: none;
  transition:
    transform 160ms ease,
    filter 160ms ease;
}

.landing-button:hover,
.landing-button:focus-visible {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.landing-button:focus-visible {
  outline: 3px solid rgba(255, 255, 255, 0.72);
  outline-offset: 4px;
}

.landing-button img {
  width: 100%;
  height: auto;
  display: block;
}

.landing-preview {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--window-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--window-bg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.landing-preview-bar {
  min-height: 2.35rem;
  padding: 0 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid var(--window-header-border);
  background: var(--window-header-bg);
}

.landing-preview-bar span {
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
}

.landing-preview-bar span:nth-child(1) {
  background: #ff6b6b;
}

.landing-preview-bar span:nth-child(2) {
  background: #f6be4f;
}

.landing-preview-bar span:nth-child(3) {
  background: #35c95e;
}

.landing-preview-body {
  flex: 1;
  min-height: clamp(18rem, 34vh, 21rem);
  padding: clamp(0.7rem, 1.25vw, 0.9rem);
  display: flex;
  background: var(--window-body-bg);
  container-type: inline-size;
}

.landing-preview-terminal {
  border: 1px solid var(--line);
  background: var(--surface-raised);
}

.landing-preview-terminal {
  flex: 1;
  min-height: calc(clamp(18rem, 34vh, 21rem) - clamp(1.4rem, 2.5vw, 1.8rem));
  margin: 0;
  padding: clamp(0.7rem, 1.25vw, 0.95rem);
  display: flex;
  justify-content: center;
  border-radius: 8px;
  overflow: hidden;
  color: #eff4ff;
  background:
    linear-gradient(180deg, rgba(123, 224, 167, 0.08), transparent),
    var(--terminal-bg);
  font-family: "DejaVu Sans Mono", "Cascadia Mono", "Cascadia Code", Menlo, Consolas, monospace;
  font-size: clamp(0.82rem, 1.85cqw, 1.25rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: 0;
  white-space: pre;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

.landing-preview-terminal code {
  font: inherit;
  display: block;
}

.capability-grid {
  width: min(100%, 72rem);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  justify-content: center;
  gap: 0.85rem;
}

.capability-grid article {
  min-height: 7rem;
  padding: 0.9rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.capability-grid h2 {
  margin: 0.5rem 0 0;
  font-size: 1rem;
  letter-spacing: 0;
}

.capability-grid p {
  margin: 0.45rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}

@media (max-width: 760px) {
  .landing-shell {
    overflow: auto;
    align-content: start;
  }

  .landing-hero {
    grid-template-columns: 1fr;
    align-items: center;
    gap: 2rem;
  }

  .landing-hero-copy {
    max-width: 44rem;
    padding-left: 0;
  }

  .landing-logo {
    width: min(100%, 17rem);
    margin-bottom: 1.2rem;
  }

  .landing-hero h1 {
    font-size: 2.65rem;
    line-height: 1;
  }

  .landing-copy {
    font-size: 1rem;
  }

  .landing-button {
    width: 100%;
  }

  .landing-preview {
    height: auto;
    max-width: 42rem;
  }

  .landing-preview-body {
    min-height: 17rem;
    padding: 0.65rem;
  }

  .landing-preview-terminal {
    min-height: calc(17rem - 1.3rem);
    padding: 0.7rem;
    font-size: clamp(0.26rem, 1.14vw, 0.35rem);
  }

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