/* shared specialism page styles */
:root{--bg:#080F22;--line:rgba(255,255,255,.09);--teal:#13C2B6;--indigo:#5A6CF2;--text:#E9EEFA;--mute:#93A0BE;--faint:#6A7796;--grad:linear-gradient(135deg,var(--teal),var(--indigo));--display:'Space Grotesk','Segoe UI',sans-serif;--body:'Inter','Segoe UI',sans-serif;--mono:'Space Mono',monospace}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--body);color:var(--text);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:920px;margin:0 auto;padding:0 28px}
.topbar{position:sticky;top:0;z-index:50;background:rgba(8,15,34,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:920px;margin:0 auto;padding:0 28px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;color:#fff;font-size:18px}
.brand svg{width:28px;height:28px}
.back{font-family:var(--mono);font-size:12.5px;color:var(--mute);border:1px solid var(--line);border-radius:8px;padding:8px 14px;transition:color .2s,border-color .2s}
.back:hover{color:var(--teal);border-color:var(--teal)}
.hero-sp{padding:90px 0 50px;position:relative;overflow:hidden}
.hero-sp::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 30%,rgba(90,108,242,.15),transparent 60%);z-index:0}
.hero-sp .wrap{position:relative;z-index:1}
.eyebrow{font-family:var(--mono);font-size:12.5px;letter-spacing:1px;color:var(--teal);margin-bottom:14px}
.eyebrow::before{content:"// "}
h1{font-family:var(--display);font-weight:700;font-size:clamp(32px,5vw,52px);line-height:1.08;letter-spacing:-1px;color:#fff;margin-bottom:18px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.lead{color:var(--mute);font-size:18px;max-width:60ch;margin-bottom:26px}
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:15px;padding:14px 24px;border-radius:12px;border:1px solid transparent;cursor:pointer;transition:transform .15s,box-shadow .2s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 30px rgba(90,108,242,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(90,108,242,.42)}
.btn-ghost{background:rgba(255,255,255,.05);color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal);color:#fff}
section.body-sp{padding:50px 0}
section.body-sp h2{font-family:var(--display);font-weight:600;font-size:26px;color:#fff;margin:34px 0 12px}
section.body-sp p{color:var(--mute);font-size:16px;margin-bottom:16px}
section.body-sp ul{list-style:none;padding:0;margin:0 0 20px}
section.body-sp li{color:var(--mute);font-size:15.5px;padding:8px 0 8px 26px;position:relative;border-bottom:1px solid var(--line)}
section.body-sp li:last-child{border-bottom:0}
section.body-sp li::before{content:"\25B8";position:absolute;left:0;color:var(--teal)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:30px 0}
.stat{border:1px solid var(--line);border-radius:14px;padding:22px;background:linear-gradient(165deg,rgba(255,255,255,.04),rgba(8,15,34,.4))}
.stat .n{font-family:var(--display);font-weight:700;font-size:30px;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat .l{font-family:var(--mono);font-size:11px;color:var(--faint);margin-top:8px;letter-spacing:.4px;text-transform:uppercase}
.cluster{padding:50px 0;border-top:1px solid var(--line)}
.cluster h2{font-family:var(--display);font-weight:600;font-size:24px;color:#fff;margin-bottom:22px}
.cluster-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.ccard{border:1px solid var(--line);border-radius:12px;padding:18px 20px;background:rgba(14,26,54,.5);transition:border-color .2s,transform .2s}
.ccard:hover{border-color:var(--teal);transform:translateY(-2px)}
.ccard.current{border-color:var(--teal);background:rgba(19,194,182,.08)}
.ccard h3{font-family:var(--display);font-weight:600;font-size:16px;color:#fff;margin-bottom:6px}
.ccard p{font-size:13px;color:var(--mute);margin:0}
.ccard .tag{font-family:var(--mono);font-size:10px;color:var(--teal);display:inline-block;margin-bottom:8px;letter-spacing:.4px}
footer.sp{padding:40px 0 30px;border-top:1px solid var(--line);text-align:center;font-family:var(--mono);font-size:12px;color:var(--faint)}
footer.sp a{color:var(--mute);text-decoration:none;transition:color .15s}
footer.sp a:hover{color:var(--teal)}
.sp-linkedin{display:inline-flex;align-items:center;gap:5px;vertical-align:middle}
.sp-linkedin svg{width:14px;height:14px}
.sp-linkedin:hover{color:#0A66C2}
@media(max-width:600px){.stats{grid-template-columns:1fr}.cluster-grid{grid-template-columns:1fr}}

/* theme toggle (shared with homepage behavior) */
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;margin-left:14px;border:1px solid var(--line);border-radius:10px;background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;line-height:1;transition:border-color .2s,color .2s,background .2s}
.theme-toggle:hover{border-color:var(--teal);color:var(--teal)}
.theme-toggle svg{width:17px;height:17px;fill:none}
.theme-toggle .icon-sun{display:block}
.theme-toggle .icon-moon{display:none}
body.light .theme-toggle .icon-sun{display:none}
body.light .theme-toggle .icon-moon{display:block}
.topbar-inner .right{display:flex;align-items:center;gap:6px}
@media(max-width:600px){.theme-toggle{margin-right:8px;margin-left:8px}}
@media(max-width:600px){.back .back-label{display:none}.back{padding:8px 12px}}

/* ---- light theme ---- */
body.light{
  --bg:#F4F6FB;--line:rgba(14,26,54,.12);--text:#0E1A36;--mute:#3A4663;--faint:#5B6886;
  --teal:#0FA89D;--indigo:#3F56E0;
  color-scheme:light;
}
body.light .topbar{background:rgba(244,246,251,.86);border-bottom-color:rgba(14,26,54,.12)}
body.light .brand{color:#0E1A36}
body.light .back{color:#3A4663;border-color:rgba(14,26,54,.14);background:#fff}
body.light .back:hover{color:var(--teal);border-color:var(--teal)}
body.light .hero-sp::before{background:radial-gradient(circle at 70% 30%,rgba(63,86,224,.10),transparent 60%)}
body.light h1{color:#0E1A36}
body.light .lead{color:#3A4663}
body.light .eyebrow{color:var(--teal)}
body.light .btn-ghost{background:#fff;color:#0E1A36;border-color:rgba(14,26,54,.16)}
body.light .btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
body.light section.body-sp h2{color:#0E1A36}
body.light section.body-sp p{color:#3A4663}
body.light section.body-sp li{color:#3A4663;border-bottom-color:rgba(14,26,54,.10)}
body.light .stat{background:linear-gradient(165deg,rgba(255,255,255,.9),rgba(244,246,251,.6));border-color:rgba(14,26,54,.12)}
body.light .stat .l{color:#5B6886}
body.light .cluster{border-top-color:rgba(14,26,54,.12)}
body.light .cluster h2{color:#0E1A36}
body.light .ccard{background:#fff;border-color:rgba(14,26,54,.14)}
body.light .ccard:hover{border-color:var(--teal)}
body.light .ccard.current{border-color:var(--teal);background:rgba(15,168,157,.07)}
body.light .ccard h3{color:#0E1A36}
body.light .ccard p{color:#3A4663}
body.light footer.sp{color:#5B6886;border-top-color:rgba(14,26,54,.12)}
body.light .theme-toggle{background:#fff;border-color:rgba(14,26,54,.16);color:#0E1A36}
body.light .theme-toggle:hover{border-color:var(--teal);color:var(--teal)}