:root{
  --accent:#4D7CFE; --accent-fg:#ffffff; --accent-rgb:77,124,254;
  --bg:#07090C; --bg-2:#0C0F14; --bg-3:#11151C;
  --fg:#E9EDF3; --fg-dim:#9AA4B2; --fg-faint:#5C6675;
  --line:rgba(255,255,255,.08); --line-2:rgba(255,255,255,.15);
  --r:8px; --r-lg:14px;
  --maxw:1280px;
  --font-d:"Space Grotesk",sans-serif; --font-m:"JetBrains Mono",monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}
html[data-theme="light"]{
  --bg:#F7F8FA; --bg-2:#FFFFFF; --bg-3:#F0F2F5;
  --fg:#0B0E13; --fg-dim:#525B68; --fg-faint:#9AA3B0;
  --line:rgba(10,14,20,.10); --line-2:rgba(10,14,20,.18);
}
/* ---- terminal direction radius / personality ---- */
html[data-style="terminal"]{ --r:7px; --r-lg:12px; }

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--fg);
  font-family:var(--font-d); font-size:17px; line-height:1.5;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
  transition:background .4s var(--ease), color .4s var(--ease);
}
::selection{ background:var(--accent); color:var(--accent-fg); }
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.ld-section{max-width:var(--maxw);margin:0 auto;padding:120px 28px}
@media(max-width:760px){ .ld-section{padding:84px 20px} }

/* =================== buttons =================== */
.ld-btn{
  display:inline-flex;align-items:center;gap:.5em;
  background:var(--accent);color:var(--accent-fg);
  font-weight:600;font-size:15px;letter-spacing:-.01em;
  padding:13px 22px;border-radius:var(--r);
  transition:transform .18s var(--ease), box-shadow .25s var(--ease);
  white-space:nowrap;
}
.ld-btn:hover{transform:translateY(-2px)}
.ld-btn-lg{font-size:16px;padding:16px 28px}
.ld-btn-sm{font-size:14px;padding:9px 16px}
.ld-btn-arrow{transition:transform .2s var(--ease)}
.ld-btn:hover .ld-btn-arrow{transform:translateX(4px)}
.ld-btn-ghost{background:transparent;color:var(--fg);box-shadow:inset 0 0 0 1.5px var(--line-2)}
.ld-btn-ghost:hover{box-shadow:inset 0 0 0 1.5px var(--accent);color:var(--accent)}
html[data-style="terminal"] .ld-btn{box-shadow:0 0 0 0 rgba(var(--accent-rgb),.5)}
html[data-style="terminal"] .ld-btn:hover{box-shadow:0 6px 28px -6px rgba(var(--accent-rgb),.6)}

/* =================== eyebrow =================== */
.ld-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-m);font-size:12.5px;font-weight:500;
  letter-spacing:.13em;text-transform:uppercase;color:var(--fg-dim);
  margin-bottom:22px;
}
.ld-eyebrow-dot{width:7px;height:7px;border-radius:2px;background:var(--accent);
  box-shadow:0 0 12px rgba(var(--accent-rgb),.8)}

/* =================== nav =================== */
.ld-nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s,border-color .3s,backdrop-filter .3s;
  border-bottom:1px solid transparent}
.ld-nav.is-scrolled{background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--line)}
.ld-nav-inner{max-width:var(--maxw);margin:0 auto;padding:16px 28px;display:flex;align-items:center;gap:24px}
@media(max-width:760px){ .ld-nav-inner{padding:13px 18px} }
.ld-nav-brand{flex:0 0 auto;display:flex;align-items:center}
.ld-nav-links{display:flex;gap:28px;margin-left:18px;flex:1}
@media(max-width:860px){ .ld-nav-links{display:none} }
.ld-navlink{font-size:15px;font-weight:500;color:var(--fg-dim);position:relative;padding:4px 0;transition:color .2s}
.ld-navlink::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;background:var(--accent);transition:right .25s var(--ease)}
.ld-navlink:hover{color:var(--fg)}
.ld-navlink:hover::after{right:0}
.ld-nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.ld-lang{font-family:var(--font-m);font-size:12.5px;font-weight:500;letter-spacing:.04em;color:var(--fg-faint);display:flex;gap:3px}
.ld-lang .on{color:var(--accent)}
.ld-lang .sep{color:var(--fg-faint);opacity:.5}
.ld-lang:hover{color:var(--fg-dim)}
.ld-wordmark-text{font-family:var(--font-d);white-space:nowrap}

/* =================== hero =================== */
.ld-hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding:128px 0 96px}
@media(max-width:760px){ .ld-hero{min-height:auto;padding:120px 0 80px} }
.ld-hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.ld-hero-wrap{position:relative;z-index:2;width:100%;max-width:var(--maxw);margin:0 auto;padding:0 28px}
@media(max-width:760px){ .ld-hero-wrap{padding:0 20px} }
.ld-hero-inner{position:relative;z-index:2;max-width:760px}
.ld-hero-h1{font-size:clamp(42px,7.4vw,82px);line-height:1.02;font-weight:700;letter-spacing:-.035em;margin-bottom:28px}
.ld-hero-line{display:block;opacity:1;animation:lineUp .8s var(--ease) forwards}
.ld-hero-line em{font-style:normal;color:var(--accent)}
@keyframes lineUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
.ld-hero-sub{font-size:clamp(17px,2vw,21px);color:var(--fg-dim);max-width:540px;margin-bottom:36px;line-height:1.55;
  opacity:1;animation:lineUp .8s var(--ease) .34s forwards}
.ld-hero-cta{display:flex;gap:14px;flex-wrap:wrap;opacity:1;animation:lineUp .8s var(--ease) .44s forwards}
.ld-hero-tags{display:flex;gap:20px;flex-wrap:wrap;margin-top:34px;opacity:1;animation:lineUp .8s var(--ease) .56s forwards}
.ld-hero-tag{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-m);font-size:12.5px;color:var(--fg-faint);letter-spacing:.02em}
.ld-live-dot{width:8px;height:8px;border-radius:50%;background:#3DDC84;box-shadow:0 0 0 0 rgba(61,220,132,.6);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(61,220,132,.5)}70%{box-shadow:0 0 0 8px rgba(61,220,132,0)}100%{box-shadow:0 0 0 0 rgba(61,220,132,0)}}
.ld-hero-mark{position:absolute;right:40px;top:50%;transform:translateY(-48%);z-index:1;color:var(--fg);opacity:.06;pointer-events:none}
@media(max-width:980px){ .ld-hero-mark{display:none} }
/* hero backgrounds (terminal) */
.ld-hero-grid,.ld-hero-glow{position:absolute;inset:0;z-index:0;pointer-events:none}
html[data-style="terminal"] .ld-hero-grid{
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:46px 46px;mask-image:radial-gradient(120% 90% at 30% 0%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(120% 90% at 30% 0%,#000 30%,transparent 75%);opacity:.7}
html[data-style="terminal"] .ld-hero-glow{background:radial-gradient(60% 50% at 78% 8%,rgba(var(--accent-rgb),.16),transparent 70%)}

/* =================== section head =================== */
.ld-sec-head{max-width:640px;margin-bottom:58px}
.ld-sec-title{font-size:clamp(30px,4.4vw,46px);font-weight:700;letter-spacing:-.03em;line-height:1.08;margin-bottom:18px}
.ld-sec-sub{font-size:18px;color:var(--fg-dim);line-height:1.55}
.ld-section-alt{position:relative}

/* =================== services =================== */
.ld-svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media(max-width:680px){ .ld-svc-grid{grid-template-columns:1fr} }
.ld-svc-card{position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 28px 34px;overflow:hidden;transition:transform .3s var(--ease),border-color .3s,box-shadow .3s}
.ld-svc-card:hover{transform:translateY(-4px);border-color:var(--line-2)}
html[data-style="terminal"] .ld-svc-card:hover{box-shadow:0 18px 50px -24px rgba(var(--accent-rgb),.5);border-color:rgba(var(--accent-rgb),.4)}
.ld-svc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.ld-svc-icon{display:grid;place-items:center;width:54px;height:54px;border-radius:var(--r);
  background:rgba(var(--accent-rgb),.12);color:var(--accent);border:1px solid rgba(var(--accent-rgb),.22)}
.ld-svc-idx{font-family:var(--font-m);font-size:13px;color:var(--fg-faint);letter-spacing:.1em}
.ld-svc-name{font-size:23px;font-weight:600;letter-spacing:-.02em;margin-bottom:10px}
.ld-svc-desc{font-size:16px;color:var(--fg-dim);line-height:1.55;max-width:42ch}
.ld-svc-line{position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--accent);transition:width .4s var(--ease)}
.ld-svc-card:hover .ld-svc-line{width:100%}

/* =================== process =================== */
.ld-proc{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
@media(max-width:880px){ .ld-proc{grid-template-columns:repeat(2,1fr);gap:34px 26px} }
@media(max-width:520px){ .ld-proc{grid-template-columns:1fr} }
.ld-proc-rail{position:absolute;top:18px;left:4%;right:4%;height:1px;background:var(--line);z-index:0}
@media(max-width:880px){ .ld-proc-rail{display:none} }
.ld-proc-step{position:relative;z-index:1}
.ld-proc-num{font-family:var(--font-m);font-size:14px;font-weight:600;color:var(--accent);margin-bottom:22px;position:relative;letter-spacing:.06em}
.ld-proc-node{display:inline-block;width:11px;height:11px;border-radius:50%;background:var(--bg);border:2px solid var(--accent);margin-left:12px;vertical-align:middle;box-shadow:0 0 0 5px var(--bg)}
.ld-proc-name{font-size:20px;font-weight:600;letter-spacing:-.02em;margin-bottom:9px}
.ld-proc-desc{font-size:15.5px;color:var(--fg-dim);line-height:1.55}

/* =================== stack marquee =================== */
.ld-marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);margin:0 -28px}
.ld-marquee+.ld-marquee{margin-top:16px}
.ld-marquee-track{display:flex;gap:14px;width:max-content;padding:0 14px;animation:scrollx 38s linear infinite}
.ld-marquee-rev .ld-marquee-track{animation-direction:reverse;animation-duration:46s}
.ld-marquee:hover .ld-marquee-track{animation-play-state:paused}
@keyframes scrollx{to{transform:translateX(-50%)}}
.ld-chip{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-m);font-size:15px;font-weight:500;
  padding:13px 20px;border:1px solid var(--line);border-radius:var(--r);background:var(--bg-2);white-space:nowrap;color:var(--fg)}
.ld-chip-dot{width:7px;height:7px;border-radius:50%;background:var(--accent)}
.ld-chip-ghost{background:transparent;color:var(--fg-faint);border-style:dashed}
@media(max-width:760px){ .ld-marquee{margin:0 -20px} }

/* =================== contact =================== */
.ld-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:start}
@media(max-width:840px){ .ld-contact-grid{grid-template-columns:1fr;gap:44px} }
.ld-contact-title{font-size:clamp(34px,5vw,54px);font-weight:700;letter-spacing:-.035em;line-height:1.04;margin-bottom:18px}
.ld-contact-sub{font-size:18px;color:var(--fg-dim);line-height:1.55;max-width:40ch;margin-bottom:36px}
.ld-contact-direct{display:flex;flex-direction:column;gap:6px}
.ld-contact-or{font-family:var(--font-m);font-size:12.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--fg-faint)}
.ld-contact-mail{font-size:21px;font-weight:600;letter-spacing:-.01em;color:var(--accent);width:fit-content;border-bottom:1.5px solid transparent;transition:border-color .2s}
.ld-contact-mail:hover{border-color:var(--accent)}
.ld-form{display:flex;flex-direction:column;gap:18px}
.ld-field{display:flex;flex-direction:column;gap:8px}
.ld-field label{font-family:var(--font-m);font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:var(--fg-dim)}
.ld-field input,.ld-field textarea,.ld-field select{
  font-family:var(--font-d);font-size:16px;color:var(--fg);background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;transition:border-color .2s,box-shadow .2s;width:100%}
.ld-field textarea{resize:vertical;min-height:108px}
.ld-field input:focus,.ld-field textarea:focus,.ld-field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.18)}
.ld-field input::placeholder,.ld-field textarea::placeholder{color:var(--fg-faint)}
.ld-select-wrap{position:relative}
.ld-field select{appearance:none;-webkit-appearance:none;cursor:pointer}
.ld-select-arrow{position:absolute;right:16px;top:50%;transform:translateY(-50%);pointer-events:none;color:var(--fg-dim);font-size:12px}
.ld-form-submit{justify-content:center;margin-top:6px}
.ld-form-submit.is-sent{background:#3DDC84;color:#07251a}
.ld-form-submit.is-sent .ld-btn-arrow{display:none}

/* =================== footer =================== */
.ld-footer{border-top:1px solid var(--line);margin-top:40px}
.ld-footer-inner{max-width:var(--maxw);margin:0 auto;padding:40px 28px 18px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.ld-footer-rights{font-size:14px;color:var(--fg-dim);flex:1;min-width:200px}
.ld-footer-back{font-family:var(--font-m);font-size:12.5px;color:var(--fg-dim);letter-spacing:.04em}
.ld-footer-back:hover{color:var(--accent)}
.ld-footer-copy{max-width:var(--maxw);margin:0 auto;padding:0 28px 36px;font-family:var(--font-m);font-size:12px;color:var(--fg-faint);letter-spacing:.06em}

/* =================== reveal =================== */
.ld-reveal{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.ld-reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .ld-reveal{opacity:1;transform:none;transition:none}
  .ld-hero-line,.ld-hero-sub,.ld-hero-cta,.ld-hero-tags{animation:none;opacity:1;transform:none}
  .ld-marquee-track{animation:none}
}