/* ktshell — ktshell.com
   Palette sampled from kotlinlang.org: #7F52FF purple, #D211EC magenta,
   #EF4857 red, dark #19191C / #27282C, light grey #F4F4F4 */

:root{
  --kt-purple:#7F52FF;
  --kt-magenta:#D211EC;
  --kt-red:#EF4857;
  --grad:linear-gradient(115deg,var(--kt-purple) 0%,var(--kt-magenta) 52%,var(--kt-red) 100%);

  --bg:#0E0E11;
  --bg-2:#141418;
  --surface:#1A1A20;
  --surface-2:#202028;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --text:#F3F3F5;
  --muted:rgba(243,243,245,.62);
  --muted-2:rgba(243,243,245,.55);
  --accent:#9B78FF;

  --r-sm:10px; --r-md:16px; --r-lg:24px; --r-xl:32px;
  --shell:1120px;
  --ease:cubic-bezier(.22,1,.36,1);
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

:root[data-theme="light"]{
  --bg:#FFFFFF;
  --bg-2:#F4F4F4;
  --surface:#FFFFFF;
  --surface-2:#F7F6FA;
  --line:rgba(25,25,28,.12);
  --line-strong:rgba(25,25,28,.22);
  --text:#19191C;
  --muted:rgba(25,25,28,.66);
  --muted-2:rgba(25,25,28,.62);
  --accent:#7F52FF;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}

body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:17px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
  transition:background .35s var(--ease),color .35s var(--ease);
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid rgba(127,82,255,.65);outline-offset:3px;border-radius:6px}
code{font-family:var(--mono);font-size:.92em}

.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:20px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ── type ───────────────────────────────────────────── */
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.03em;line-height:1.07}
.display{font-size:clamp(2.7rem,6.4vw,4.9rem);letter-spacing:-.042em}
h2{font-size:clamp(1.9rem,3.5vw,2.9rem)}
h3{font-size:1.2rem;letter-spacing:-.022em}
.eyebrow{margin:0 0 14px;font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.kicker{margin:0 0 18px;font:500 .84rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted-2)}
.lede{margin:24px 0 0;font-size:1.15rem;color:var(--muted);max-width:46ch}
.sec-sub{margin:16px 0 0;color:var(--muted);font-size:1.03rem;max-width:58ch}

/* ── buttons ────────────────────────────────────────── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;border:1px solid transparent;
  font-size:.95rem;font-weight:600;letter-spacing:-.01em;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .25s var(--ease),border-color .2s,opacity .2s;
}
.btn--lg{padding:14px 26px;font-size:1rem}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 6px 24px -8px rgba(127,82,255,.75)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px -10px rgba(210,17,236,.65)}
.btn--outline{border-color:var(--line-strong);color:var(--text)}
.btn--outline:hover{border-color:var(--accent);transform:translateY(-2px)}
.btn:active{transform:translateY(0)}

/* ── nav ────────────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);
  background:color-mix(in srgb,var(--bg) 82%,transparent);
  border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
.nav.is-stuck{border-bottom-color:var(--line)}
.nav__inner{display:flex;align-items:center;gap:22px;height:70px}

.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{width:38px;height:38px;flex:0 0 auto;overflow:visible;
  transition:transform .35s var(--ease)}
.brand:hover .brand__mark{transform:scale(1.06)}
.brand__caret{animation:blink 1.15s steps(1,end) infinite}
@keyframes blink{0%,55%{opacity:1}56%,100%{opacity:0}}
.brand__word{font-size:1.24rem;font-weight:700;letter-spacing:-.045em}

.nav__links{display:flex;gap:4px;margin-left:auto}
.nav__links a{position:relative;padding:8px 14px;border-radius:999px;font-size:.95rem;font-weight:500;
  color:var(--muted);transition:color .2s,background .2s}
.nav__links a:hover{color:var(--text);background:var(--surface-2)}
.nav__links a.is-active{color:var(--text)}
.nav__links a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--grad)}
.nav__actions{display:flex;align-items:center;gap:10px}

.icon-btn{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;
  border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;transition:.2s}
.icon-btn:hover{color:var(--text);border-color:var(--line-strong)}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.i-moon{display:none}
:root[data-theme="light"] .i-sun{display:none}
:root[data-theme="light"] .i-moon{display:block}

.burger{display:none;position:relative;width:38px;height:38px;padding:0;
  border:1px solid var(--line);border-radius:10px;background:none;cursor:pointer}
.burger span{position:absolute;left:50%;top:50%;width:16px;height:2px;margin:-1px 0 0 -8px;
  background:var(--text);border-radius:2px;transition:transform .28s var(--ease)}
.burger span:first-child{transform:translateY(-4px)}
.burger span:last-child{transform:translateY(4px)}
.burger[aria-expanded="true"] span:first-child{transform:rotate(45deg)}
.burger[aria-expanded="true"] span:last-child{transform:rotate(-45deg)}

/* ── hero ───────────────────────────────────────────── */
.hero{position:relative;padding:clamp(60px,9vw,120px) 0 clamp(40px,6vw,76px);overflow:hidden}
.hero__glow{position:absolute;inset:-30% -10% auto;height:760px;pointer-events:none;filter:blur(24px);
  background:
    radial-gradient(48% 42% at 22% 30%,rgba(127,82,255,.36),transparent 70%),
    radial-gradient(38% 38% at 72% 18%,rgba(210,17,236,.22),transparent 70%),
    radial-gradient(34% 34% at 88% 52%,rgba(239,72,87,.16),transparent 70%)}
:root[data-theme="light"] .hero__glow{opacity:.55}
.hero__grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* terminal */
.term{border-radius:var(--r-lg);border:1px solid var(--line);background:var(--bg-2);overflow:hidden;
  box-shadow:0 40px 90px -40px rgba(0,0,0,.75),0 0 0 1px rgba(127,82,255,.10)}
:root[data-theme="light"] .term{background:#19191C;border-color:rgba(0,0,0,.2);box-shadow:0 34px 70px -34px rgba(25,25,28,.5)}
.term__bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid rgba(255,255,255,.08);background:rgba(255,255,255,.03)}
.term__bar i{width:11px;height:11px;border-radius:50%}
.term__bar i:first-child{background:#EF4857}.term__bar i:nth-child(2){background:#FF9419}.term__bar i:nth-child(3){background:#2ECC71}
.term__bar span{margin-left:8px;font:500 .78rem/1 var(--mono);color:rgba(243,243,245,.42)}
.term__body{margin:0;padding:22px 20px 26px;min-height:250px;font:400 .88rem/1.85 var(--mono);
  color:#E6E6EA;white-space:pre-wrap;word-break:break-word}
.term__cursor{display:inline-block;width:8px;height:1.05em;vertical-align:-2px;background:var(--kt-purple);
  animation:blink 1.05s steps(1,end) infinite}
.t-p{color:#9B78FF}.t-ok{color:#36D399}.t-dim{color:rgba(230,230,234,.5)}.t-key{color:#EF4857}

/* ── sections ───────────────────────────────────────── */
.band{padding-block:clamp(60px,7.5vw,104px)}
.sec-head{max-width:620px;margin-bottom:48px}

.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cards--4{grid-template-columns:repeat(4,1fr)}
.card{position:relative;padding:30px 28px 32px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--surface);overflow:hidden;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.card::before{content:"";position:absolute;inset:0 0 auto;height:2px;background:var(--grad);opacity:0;transition:opacity .3s}
.card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 26px 50px -28px rgba(0,0,0,.6)}
.card:hover::before{opacity:1}
.card__ico{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:20px;
  background:linear-gradient(140deg,rgba(127,82,255,.20),rgba(210,17,236,.14));border:1px solid rgba(127,82,255,.28)}
.card__ico svg{width:22px;height:22px;fill:none;stroke:var(--accent);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-bottom:10px}
.card p{margin:0;color:var(--muted);font-size:.96rem}

.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.ticks{margin:28px 0 0;padding:0;list-style:none;display:grid;gap:13px}
.ticks li{position:relative;padding-left:30px;color:var(--muted);font-size:.98rem}
.ticks li::before{content:"";position:absolute;left:0;top:.36em;width:18px;height:18px;border-radius:50%;
  background:rgba(127,82,255,.14);border:1px solid rgba(127,82,255,.35)}
.ticks li::after{content:"";position:absolute;left:5.5px;top:.72em;width:7px;height:4px;
  border-left:1.8px solid var(--accent);border-bottom:1.8px solid var(--accent);transform:rotate(-45deg)}

/* pull quote */
.quote{margin:0;padding:38px 34px;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--surface-2);position:relative;overflow:hidden}
.quote::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--grad)}
.quote blockquote{margin:0;font-size:clamp(1.2rem,2.1vw,1.5rem);line-height:1.42;letter-spacing:-.025em;font-weight:500}
.quote figcaption{display:flex;align-items:center;gap:9px;margin-top:22px;font-size:.88rem;color:var(--muted-2)}
.quote__mark{width:22px;height:2px;border-radius:2px;background:var(--grad)}

/* ── process steps ──────────────────────────────────── */
.steps{margin-top:clamp(52px,6vw,76px);display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:24px}
.step{position:relative;padding-top:30px}
.step::before{content:"";position:absolute;top:5px;left:0;right:-24px;height:2px;background:var(--line)}
.step::after{content:"";position:absolute;top:0;left:0;width:12px;height:12px;border-radius:50%;background:var(--grad)}
.step:last-child::before{right:0}
.step__n{display:block;margin-bottom:10px;font:500 .78rem/1 var(--mono);letter-spacing:.14em;color:var(--muted-2)}
.step h3{margin-bottom:9px;font-size:1.08rem}
.step p{margin:0;color:var(--muted);font-size:.94rem}
.steps__cta{margin-top:clamp(40px,4.6vw,56px);display:flex;justify-content:center}

/* ── ai panel ───────────────────────────────────────── */
.panel{position:relative;overflow:hidden;padding:clamp(34px,4.6vw,58px);
  border-radius:var(--r-xl);border:1px solid var(--line);background:var(--surface)}
.panel::before{content:"";position:absolute;inset:0 0 auto;height:2px;background:var(--grad)}
.panel>.sec-sub{max-width:62ch}

.lanes{margin-top:clamp(32px,4vw,44px);display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden}
.lane{background:var(--surface);padding:26px 24px}
.lane__tag{font:500 .72rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
.lane h3{margin:13px 0 9px;font-size:1.05rem}
.lane p{margin:0;color:var(--muted);font-size:.93rem}

.guards{margin-top:clamp(30px,3.6vw,40px);padding-top:30px;border-top:1px solid var(--line)}
.guards .eyebrow{margin-bottom:6px}
.guards .ticks{margin-top:18px;grid-template-columns:1fr 1fr;gap:13px 32px}

/* ── contact ────────────────────────────────────────── */
.cta{position:relative;overflow:hidden;text-align:center;padding:clamp(48px,7vw,80px) 28px;
  border-radius:var(--r-xl);border:1px solid var(--line);background:var(--surface-2)}
.cta__glow{position:absolute;left:-15%;right:-15%;bottom:-18%;height:460px;pointer-events:none;filter:blur(18px);
  background:
    radial-gradient(42% 58% at 50% 100%,rgba(127,82,255,.55),transparent 72%),
    radial-gradient(26% 40% at 22% 96%,rgba(210,17,236,.30),transparent 72%),
    radial-gradient(26% 40% at 80% 96%,rgba(239,72,87,.22),transparent 72%)}
.cta>*:not(.cta__glow){position:relative}
.cta p{margin:16px auto 0;color:var(--muted);max-width:44ch}
.cta .hero__cta{justify-content:center;margin-top:24px}
.cta__form{display:grid;gap:14px;max-width:430px;margin:32px auto 0;text-align:left}
.field{display:grid;gap:7px}
.field__label{font-size:.84rem;font-weight:500;color:var(--muted)}
.field input,.field textarea{width:100%;padding:13px 16px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:var(--bg);color:var(--text);
  font:400 .95rem/1.5 var(--font);resize:vertical;transition:border-color .2s}
.field input::placeholder,.field textarea::placeholder{color:var(--muted-2)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--accent)}
.field input[aria-invalid="true"]{border-color:var(--kt-red)}
.cta__form button[disabled]{opacity:.55;pointer-events:none}
.cta__note{min-height:1.4em;margin:0;font-size:.88rem;color:var(--accent);text-align:center}
.cta__note[data-state="error"]{color:var(--kt-red)}
.cta__fine{margin:2px 0 0;font-size:.82rem;line-height:1.55;color:var(--muted-2);text-align:center}
.cta__fine a{color:var(--muted);text-decoration:underline;text-underline-offset:2px}
.cta__fine a:hover{color:var(--text)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ── footer ─────────────────────────────────────────── */
.foot{border-top:1px solid var(--line);background:var(--bg-2)}
.foot__inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;padding-block:34px}
.brand--foot{margin-right:4px}
.foot__line{margin:0;color:var(--muted);font:400 .9rem/1 var(--mono);letter-spacing:.01em}
.foot__line a{transition:color .2s}
.foot__line a:hover{color:var(--text)}
.foot__copy{margin:0 0 0 auto;color:var(--muted-2);font-size:.86rem}

/* ── reveal ─────────────────────────────────────────── */
/* Content is visible by default: if app.js never runs, nothing is hidden.
   app.js sets .js-reveal on <html> before first paint, which opts in. */
.js-reveal .reveal{opacity:0;transform:translateY(22px);transition:opacity .65s var(--ease),transform .65s var(--ease)}
.js-reveal .reveal.is-in{opacity:1;transform:none}

/* ── responsive ─────────────────────────────────────── */
@media (max-width:960px){
  .hero__grid,.split{grid-template-columns:1fr;gap:40px}
  .cards,.lanes{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .nav__links{position:fixed;inset:70px 0 auto;flex-direction:column;gap:2px;margin:0;padding:14px 20px 22px;
    background:var(--bg);border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .32s var(--ease)}
  .nav__links.is-open{transform:none}
  .nav__links a{padding:12px 14px;font-size:1rem}
  .nav__links a.is-active::after{left:14px;right:auto;width:18px}
  .nav__actions{margin-left:auto}
  .burger{display:block}
}
@media (max-width:620px){
  body{font-size:16px}
  .cards,.lanes{grid-template-columns:1fr}
  .steps{gap:26px}
  .step::before{right:0}
  .guards .ticks{grid-template-columns:1fr}
  .quote{padding:30px 24px}
  .btn--lg{width:100%}
  .term__body{font-size:.8rem;min-height:230px}
  .foot__inner{flex-direction:column;align-items:flex-start}
  .foot__copy{margin-left:0}
}