/* ───────────────────────── bd — design tokens ───────────────────────── */
:root {
  --bg:        #08080c;
  --bg-2:      #0d0d15;
  --surface:   #12121c;
  --surface-2: #171723;
  --line:      #23232f;
  --text:      #e9eaf2;
  --muted:     #9092a3;
  --faint:     #6b6d7e;
  --violet:    #8b5cff;
  --cyan:      #2ad4ee;
  --ok:        #46e08a;
  --warn:      #ffcb6b;
  --grad:      linear-gradient(100deg, #9a7bff 0%, #2ad4ee 100%);
  --radius:    14px;
  --mono:      "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans:      "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --maxw:      1140px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed; inset: 0; z-index: -1;
  background:
    radial-gradient(60rem 40rem at 78% -8%, rgba(139,92,255,.16), transparent 60%),
    radial-gradient(50rem 36rem at 8% 6%, rgba(42,212,238,.10), transparent 55%);
  pointer-events: none;
}
a { color: inherit; text-decoration: none; }
code { font-family: var(--mono); font-size: .92em; }
.grad {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ───────────────────────── buttons ───────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font: 600 .92rem/1 var(--sans);
  padding: .7rem 1.1rem; border-radius: 10px;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .12s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--solid { background: var(--grad); color: #0a0a12; box-shadow: 0 6px 24px -8px rgba(139,92,255,.6); }
.btn--solid:hover { box-shadow: 0 10px 32px -8px rgba(139,92,255,.8); }
.btn--ghost { background: rgba(255,255,255,.03); border-color: var(--line); color: var(--text); }
.btn--ghost:hover { border-color: var(--violet); background: rgba(139,92,255,.08); }
.btn--lg { padding: .9rem 1.5rem; font-size: 1rem; }
.btn--sm { padding: .45rem .8rem; font-size: .82rem; }

/* ───────────────────────── nav ───────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,8,12,.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; gap: 1.5rem;
  padding: .85rem 1.5rem;
}
.brand { display: flex; align-items: baseline; gap: .5rem; }
.brand__glyph {
  font: 800 1.35rem/1 var(--mono);
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand__tag { font-size: .72rem; color: var(--faint); letter-spacing: .12em; text-transform: uppercase; }
.nav__links { display: flex; gap: 1.4rem; margin-left: .5rem; }
.nav__links a { color: var(--muted); font-size: .9rem; font-weight: 500; transition: color .15s; }
.nav__links a:hover { color: var(--text); }
.nav__cta { display: flex; align-items: center; gap: .7rem; margin-left: auto; }
.ver {
  font: 500 .72rem/1 var(--mono); color: var(--cyan);
  border: 1px solid var(--line); border-radius: 6px; padding: .3rem .45rem;
}

/* ───────────────────────── hero ───────────────────────── */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center;
  padding: 5.5rem 1.5rem 3rem;
}
.pill {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: .78rem; color: var(--muted);
  background: rgba(255,255,255,.03); border: 1px solid var(--line);
  border-radius: 999px; padding: .4rem .85rem; margin-bottom: 1.5rem;
}
.pill__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px rgba(70,224,138,.18); }
.hero h1 { font-size: clamp(2.3rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.08; letter-spacing: -.02em; }
.lede { color: var(--muted); font-size: 1.08rem; margin: 1.4rem 0 2rem; max-width: 36rem; }
.lede code { color: var(--text); background: var(--surface); padding: .1rem .35rem; border-radius: 5px; border: 1px solid var(--line); }
.hero__actions { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero__meta { display: flex; align-items: center; gap: .9rem; margin-top: 2rem; color: var(--faint); font-size: .85rem; }
.hero__meta strong { color: var(--text); font-variant-numeric: tabular-nums; }
.hero__meta .sep { color: var(--line); }

/* ───────────────────────── terminal ───────────────────────── */
.term {
  background: linear-gradient(180deg, #0e0e17, #0a0a11);
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: 0 30px 70px -30px rgba(0,0,0,.8), 0 0 0 1px rgba(139,92,255,.06);
  overflow: hidden;
}
.term__bar {
  display: flex; align-items: center; gap: .5rem;
  padding: .7rem .9rem; background: rgba(255,255,255,.02);
  border-bottom: 1px solid var(--line);
}
.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot--r { background: #ff5f56; } .dot--y { background: #ffbd2e; } .dot--g { background: #27c93f; }
.term__title { margin-left: .5rem; font: 500 .78rem/1 var(--mono); color: var(--faint); }
.term__body {
  font: 400 .86rem/1.7 var(--mono); padding: 1.2rem 1.3rem;
  min-height: 340px; white-space: pre-wrap; color: #cfd2e0;
}
.term__body .l-com { color: var(--faint); }
.term__body .l-str { color: #b9e6a0; }
.term__body .l-prompt { color: var(--violet); }
.term__body .l-dim { color: var(--faint); }
.term__body .l-ok { color: var(--ok); }
.term__body .l-cyan { color: var(--cyan); }
.cursor { display: inline-block; width: 9px; height: 1.05em; vertical-align: text-bottom; background: var(--cyan); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ───────────────────── compiles-to strip ───────────────────── */
.targets {
  max-width: var(--maxw); margin: 1rem auto 0;
  display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  padding: 1.5rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.targets__label { color: var(--faint); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; }
.targets__list { list-style: none; display: flex; gap: 1.4rem; flex-wrap: wrap; }
.targets__list li { font: 500 .92rem/1 var(--mono); color: var(--muted); }

/* ───────────────────────── sections ───────────────────────── */
.section { max-width: var(--maxw); margin: 0 auto; padding: 5.5rem 1.5rem; }
.section--alt { background: var(--bg-2); max-width: none; border-block: 1px solid var(--line); }
.section--alt > * { max-width: var(--maxw); margin-inline: auto; }
.section__head { max-width: 40rem; margin-bottom: 3rem; }
.kicker { font: 600 .8rem/1 var(--mono); color: var(--cyan); letter-spacing: .08em; text-transform: uppercase; }
.section__head h2 { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 800; letter-spacing: -.02em; margin: .8rem 0 .9rem; }
.section__head p { color: var(--muted); font-size: 1.05rem; }
.section__head code, .manifesto__body code, .faq code { color: var(--text); background: var(--surface); padding: .08rem .3rem; border-radius: 5px; border: 1px solid var(--line); }

/* ───────────────────────── steps ───────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.step {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; display: flex; flex-direction: column;
}
.step__n { font: 800 1rem/1 var(--mono); color: var(--violet); opacity: .8; margin-bottom: .8rem; }
.step h3 { font-size: 1.15rem; margin-bottom: .4rem; }
.step h3 code { color: var(--cyan); }
.step p { color: var(--muted); font-size: .94rem; margin-bottom: 1.1rem; }
.step .code { margin-top: auto; }

/* ───────────────────────── code blocks ───────────────────────── */
.code {
  font: 400 .82rem/1.65 var(--mono); white-space: pre-wrap;
  background: #0a0a11; border: 1px solid var(--line); border-radius: 10px;
  padding: 1rem 1.1rem; color: #cfd2e0; overflow-x: auto;
}
.c-com { color: var(--faint); } .c-str { color: #b9e6a0; } .c-prompt { color: var(--violet); }
.c-dim { color: var(--faint); } .c-ok { color: var(--ok); } .c-cyan { color: var(--cyan); }

/* ───────────────────────── playground ───────────────────────── */
.play__tabs { display: flex; gap: .4rem; flex-wrap: wrap; margin-bottom: 1rem; }
.play__tab {
  font: 500 .85rem/1 var(--mono); color: var(--muted);
  background: var(--surface); border: 1px solid var(--line); border-radius: 8px;
  padding: .55rem .85rem; cursor: pointer; transition: all .15s;
}
.play__tab:hover { color: var(--text); border-color: var(--violet); }
.play__tab.is-active { color: var(--text); border-color: var(--violet); background: rgba(139,92,255,.1); }
.play__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.play__pane { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.play__panehead {
  display: flex; align-items: center; justify-content: space-between;
  padding: .6rem .8rem .6rem 1rem; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02);
}
.play__fname { font: 500 .82rem/1 var(--mono); color: var(--muted); }
.play__status { font: 500 .76rem/1 var(--mono); color: var(--faint); }
.play__status.is-run { color: var(--warn); } .play__status.is-ok { color: var(--ok); }
.play__src { font: 400 .82rem/1.7 var(--mono); padding: 1.1rem; color: #cfd2e0; white-space: pre-wrap; min-height: 320px; }
.play__out { min-height: 320px; position: relative; background: #0a0a11; }
.play__placeholder { color: var(--faint); font-size: .9rem; padding: 1.1rem; }
.play__out iframe { width: 100%; height: 380px; border: 0; background: #fff; display: block; }
.play__out pre { font: 400 .8rem/1.6 var(--mono); padding: 1.1rem; color: #cfd2e0; white-space: pre-wrap; overflow-x: auto; max-height: 380px; }
.play__log { font: 400 .8rem/1.7 var(--mono); padding: 1.1rem; color: var(--faint); white-space: pre-wrap; }
.play__log .l-ok { color: var(--ok); } .play__log .l-prompt { color: var(--violet); }

/* ───────────────────────── feature grid ───────────────────────── */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; transition: transform .15s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: rgba(139,92,255,.45); }
.card__icon {
  width: 44px; height: 44px; display: grid; place-items: center;
  font-size: 1.3rem; border-radius: 11px; margin-bottom: 1rem;
  background: rgba(139,92,255,.12); color: var(--cyan); border: 1px solid var(--line);
}
.card h3 { font-size: 1.1rem; margin-bottom: .4rem; }
.card p { color: var(--muted); font-size: .93rem; }
.card code { color: var(--cyan); }

/* ───────────────────────── install ───────────────────────── */
.install { max-width: 46rem; }
.install__row { display: flex; gap: .6rem; align-items: stretch; }
.install__row .code { flex: 1; margin: 0; display: flex; align-items: center; }
.copy {
  font: 500 .8rem/1 var(--mono); color: var(--muted);
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px;
  padding: 0 1rem; cursor: pointer; transition: all .15s;
}
.copy:hover { color: var(--text); border-color: var(--violet); }
.copy.is-done { color: var(--ok); border-color: var(--ok); }
.install__alts { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; margin: 1.1rem 0 2.5rem; color: var(--faint); font-size: .88rem; }
.install__alts code { background: var(--surface); border: 1px solid var(--line); border-radius: 7px; padding: .4rem .7rem; color: var(--muted); }
.quickstart h3 { font-size: 1.1rem; margin-bottom: .8rem; }

/* ───────────────────────── manifesto ───────────────────────── */
.manifesto__body { max-width: 42rem; }
.manifesto__body p { color: var(--muted); font-size: 1.08rem; margin-bottom: 1.1rem; }
.manifesto__body em { color: var(--text); font-style: italic; }

/* ───────────────────────── faq ───────────────────────── */
.faq { max-width: 46rem; display: flex; flex-direction: column; gap: .7rem; }
.faq details {
  background: var(--surface); border: 1px solid var(--line); border-radius: 10px; padding: .2rem 1.1rem;
}
.faq summary { cursor: pointer; padding: .95rem 0; font-weight: 600; list-style: none; position: relative; padding-right: 2rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: .85rem; color: var(--violet); font: 700 1.2rem/1 var(--mono); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { color: var(--muted); font-size: .96rem; padding-bottom: 1.1rem; }

/* ───────────────────────── cta ───────────────────────── */
.cta { text-align: center; padding: 6rem 1.5rem; max-width: var(--maxw); margin: 0 auto; }
.cta h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; letter-spacing: -.02em; margin-bottom: 2rem; }
.cta .hero__actions { justify-content: center; }

/* ───────────────────────── footer ───────────────────────── */
.foot { border-top: 1px solid var(--line); background: var(--bg-2); }
.foot__inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1.2fr 2fr; gap: 2rem; padding: 3.5rem 1.5rem 2.5rem; }
.foot__brand p { color: var(--faint); font-size: .9rem; margin-top: .6rem; max-width: 18rem; }
.foot__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.foot__cols h4 { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--faint); margin-bottom: .9rem; }
.foot__cols a { display: block; color: var(--muted); font-size: .9rem; padding: .25rem 0; transition: color .15s; }
.foot__cols a:hover { color: var(--text); }
.foot__bar {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem;
  padding: 1.3rem 1.5rem; border-top: 1px solid var(--line);
  color: var(--faint); font-size: .82rem;
}
.foot__bar a { color: var(--muted); }
.foot__bar a:hover { color: var(--text); }
.foot__ver { font-family: var(--mono); }

/* ───────────────────────── responsive ───────────────────────── */
@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; padding-top: 3.5rem; }
  .hero__term { order: 2; }
  .steps, .grid { grid-template-columns: 1fr; }
  .play__grid { grid-template-columns: 1fr; }
  .nav__links { display: none; }
  .foot__inner { grid-template-columns: 1fr; }
  .foot__cols { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 540px) {
  .nav__cta .btn--ghost { display: none; }
  .foot__cols { grid-template-columns: 1fr 1fr; }
  .play__out iframe { height: 320px; }
}