/* ── TinyZKP Design System ── */

:root{
  --bg:#050a12;
  --bg-warm:#080d18;
  --surface:#0c1424;
  --surface-2:#101a30;
  --border:#152040;
  --border-light:#1e2d52;
  --text:#e4e9f2;
  --text-bright:#f4f6fb;
  --muted:#8899b8;
  --dim:#6b84a6;
  --accent:#2ee8d4;
  --accent-bright:#5cf0e0;
  --accent-dim:rgba(46,232,212,.08);
  --accent-glow:rgba(46,232,212,.15);
  --accent2:#f0b86a;
  --accent2-dim:rgba(240,184,106,.08);
  --green:#34d399;
  --green-dim:rgba(52,211,153,.1);
  --amber:#fbbf24;
  --amber-dim:rgba(251,191,36,.08);
  --red:#f87171;
  --red-dim:rgba(248,113,113,.08);
  --blue:#60a5fa;
  --blue-dim:rgba(96,165,250,.08);
  --mono:'IBM Plex Mono',Consolas,'Liberation Mono',Menlo,monospace;
  --sans:'IBM Plex Sans',system-ui,-apple-system,sans-serif;
}

/* ── Reset ── */
*,*::before,*::after{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;-moz-osx-font-smoothing:grayscale;
  min-height:100vh;display:flex;flex-direction:column}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{vertical-align:middle}

/* ── Selection ── */
::selection{background:rgba(46,232,212,.2);color:var(--text-bright)}

/* ── Focus ── */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
a:focus-visible,button:focus-visible{outline-offset:3px}

/* ── Scrollbar ── */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border-light);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--dim)}

/* ── Dot grid background ── */
body::before{content:'';position:fixed;inset:0;z-index:-2;
  background-image:radial-gradient(circle,var(--border) .5px,transparent .5px);
  background-size:32px 32px;opacity:.3;pointer-events:none}

/* ── Container ── */
.container{max-width:1100px;margin:0 auto;padding:0 24px;width:100%}

/* ── Nav ── */
nav{position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(5,10,18,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
nav .container{display:flex;align-items:center;justify-content:space-between;height:56px}
.logo{font-family:var(--mono);font-weight:700;font-size:18px;color:var(--text-bright);
  text-decoration:none;letter-spacing:-.02em}
.logo span{color:var(--accent)}
.links{display:flex;align-items:center;gap:24px}
.links a{color:var(--muted);font-size:13px;font-weight:500;transition:color .2s;letter-spacing:.01em}
.links a:hover{color:var(--text);text-decoration:none}
.nav-cta{background:var(--accent);color:var(--bg)!important;padding:7px 18px;border-radius:6px;
  font-weight:700;font-size:12.5px;letter-spacing:.03em;text-transform:uppercase;
  transition:transform .15s,box-shadow .15s}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 4px 20px var(--accent-glow);text-decoration:none}
.hamburger{display:none;background:none;border:none;cursor:pointer;padding:4px}
.hamburger svg{width:24px;height:24px;stroke:var(--text);stroke-width:2;fill:none}

/* ── Footer ── */
footer{border-top:1px solid var(--border);padding:32px 0;margin-top:auto}
footer .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
footer .left{color:var(--dim);font-size:12.5px;font-weight:500}
footer .right{display:flex;gap:22px;flex-wrap:wrap}
footer .right a{color:var(--dim);text-decoration:none;font-size:12.5px;font-weight:500;transition:color .2s}
footer .right a:hover{color:var(--muted)}

/* ── Shared Components ── */
.spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(5,10,18,.3);
  border-top-color:var(--bg);border-radius:50%;animation:spin .6s linear infinite;vertical-align:middle;margin-right:8px}
@keyframes spin{to{transform:rotate(360deg)}}

code{background:var(--surface);border:1px solid var(--border);padding:2px 7px;border-radius:5px;
  font-family:var(--mono);font-size:13px;color:var(--accent)}

/* ── Mobile Nav ── */
@media(max-width:768px){
  .links{display:none;position:absolute;top:56px;left:0;right:0;background:var(--bg);
    border-bottom:1px solid var(--border);flex-direction:column;padding:16px 24px;gap:16px}
  .links.open{display:flex}
  .hamburger{display:block}
}
@media(max-width:600px){
  footer .container{flex-direction:column;gap:12px;text-align:center}
  footer .right{flex-wrap:wrap;justify-content:center}
}