/* Synergy Platform deep-dive — shared design system.
   Matches the synergytech.cloud brand: deep space-blue ground, #5b8cff accent.
   Each page sets a category hue via --cat on <body>. Single-theme dark by design. */

:root{
  --bg:#06080e; --panel:#0d121e; --panel2:#111827; --line:#1b2334;
  --fg:#eaf0fa; --muted:#8f9db6; --accent:#5b8cff; --accent2:#22d3a6;
  --warn:#f5b455; --cat:#5b8cff;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--fg);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:1080px;margin:0 auto;padding:0 22px}

/* ---------- chrome ---------- */
header{position:sticky;top:0;background:rgba(6,8,14,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:20}
nav{display:flex;align-items:center;gap:8px;height:60px}
.brand{font-weight:800;font-size:16px;letter-spacing:.2px;margin-right:14px;white-space:nowrap}
.brand span{color:var(--accent)}
.navlinks{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.navlinks::-webkit-scrollbar{display:none}
.navlinks a{color:var(--muted);font-size:13px;padding:7px 11px;border-radius:8px;white-space:nowrap}
.navlinks a:hover{color:var(--fg);background:var(--panel2)}
.navlinks a.on{color:var(--fg);background:var(--panel2);box-shadow:inset 0 -2px 0 var(--cat)}
footer{border-top:1px solid var(--line);margin-top:90px;padding:38px 0 46px;color:var(--muted);font-size:13px}
footer .cols{display:flex;gap:40px;flex-wrap:wrap;justify-content:space-between}
footer a{color:var(--muted)} footer a:hover{color:var(--fg)}

/* ---------- hero ---------- */
.crumb{padding:26px 0 0;font-size:13px;color:var(--muted)}
.crumb a:hover{color:var(--fg)}
.crumb b{color:var(--fg);font-weight:600}
.hero{padding:26px 0 8px}
.eyebrow{color:var(--cat);font-weight:700;font-size:12.5px;letter-spacing:1.6px;text-transform:uppercase}
h1{font-size:clamp(34px,5.4vw,52px);line-height:1.06;margin:10px 0 14px;font-weight:850;letter-spacing:-1.2px}
h1 .grad{background:linear-gradient(92deg,var(--cat),var(--accent2));-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{color:var(--muted);font-size:clamp(16px,2vw,19px);max-width:760px}
.status{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--panel);border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:600;color:var(--muted)}
.chip.live{color:var(--accent2);border-color:rgba(34,211,166,.35)}
.chip.build{color:var(--warn);border-color:rgba(245,180,85,.35)}
.chip a{color:inherit}

/* ---------- replaces band ---------- */
.replaces{margin:34px 0 0;border:1px solid var(--line);background:linear-gradient(180deg,var(--panel),transparent);border-radius:16px;padding:22px 24px}
.replaces .tag{font-size:12px;letter-spacing:1.4px;text-transform:uppercase;color:var(--muted);font-weight:700}
.replaces .row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.rep{border:1px solid var(--line);background:var(--panel2);border-radius:10px;padding:8px 14px;font-size:14px;font-weight:600}
.rep s{color:var(--muted);font-weight:500;text-decoration-color:rgba(229,83,75,.7)}
.rep .why{display:block;font-size:12px;color:var(--muted);font-weight:400;margin-top:1px}

/* ---------- sections ---------- */
section{padding:52px 0 0}
.eyebrow2{color:var(--cat);font-weight:700;font-size:12px;letter-spacing:1.5px;text-transform:uppercase}
h2{font-size:clamp(23px,3.4vw,32px);margin:8px 0 10px;font-weight:800;letter-spacing:-.5px}
.lead{color:var(--muted);max-width:720px;margin-bottom:26px}
h3{font-size:16px;font-weight:700;margin-bottom:6px}
p{margin-bottom:12px}
section p, section li{color:#c7d0e2;font-size:15px}
ul.plain{list-style:none}
ul.ticks{list-style:none}
ul.ticks li{padding-left:24px;position:relative;margin-bottom:8px}
ul.ticks li::before{content:"✓";position:absolute;left:2px;color:var(--accent2);font-weight:700}

/* cards & grids */
.grid{display:grid;gap:14px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
@media(max-width:860px){.grid.c3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid.c2,.grid.c3{grid-template-columns:1fr}}
.card{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:20px}
.card h3{display:flex;align-items:center;gap:9px}
.card .ic{font-size:19px}
.card p{color:var(--muted);font-size:13.5px;margin:6px 0 0}

/* stat band */
.stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:6px}
.stat{flex:1;min-width:150px;border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:18px 20px}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--fg);letter-spacing:-.5px}
.stat b em{font-style:normal;color:var(--cat)}
.stat span{font-size:12.5px;color:var(--muted)}

/* build/stack strip */
.stack{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}
.stack code{border:1px solid var(--line);background:var(--panel2);border-radius:8px;padding:5px 11px;font-size:12.5px;font-family:Consolas,ui-monospace,monospace;color:#aebadb}

/* tile grid (hubs + index) */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
@media(max-width:900px){.tiles{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.tiles{grid-template-columns:1fr}}
.tile{border:1px solid var(--line);background:var(--panel);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:8px;transition:border-color .15s,transform .15s}
.tile:hover{border-color:var(--cat);transform:translateY(-2px)}
.tile .ic{width:44px;height:44px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:22px;border:1px solid var(--line);background:var(--panel2)}
.tile h3{font-size:16px}
.tile p{color:var(--muted);font-size:13px;line-height:1.5}
.tile .rep-line{margin-top:auto;padding-top:10px;font-size:12px;color:var(--muted)}
.tile .rep-line s{text-decoration-color:rgba(229,83,75,.7)}
.tile .rep-line b{color:var(--cat);font-weight:600}

/* two-column narrative */
.duo{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
@media(max-width:820px){.duo{grid-template-columns:1fr}}

/* callout */
.callout{border:1px solid var(--line);border-left:3px solid var(--cat);background:var(--panel);border-radius:12px;padding:16px 20px;margin-top:16px}
.callout p{margin:0;color:#c7d0e2;font-size:14px}

/* related pages */
.related{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.related a{border:1px solid var(--line);background:var(--panel);border-radius:10px;padding:9px 15px;font-size:13.5px;font-weight:600}
.related a:hover{border-color:var(--cat)}
.related a span{color:var(--muted);font-weight:400}

/* index hero variant */
.bighero{padding:86px 0 40px;text-align:center;background:radial-gradient(1100px 480px at 50% -10%,rgba(91,140,255,.15),transparent)}
.bighero .lede{margin:0 auto}
.cat-head{display:flex;align-items:baseline;gap:14px;margin:44px 0 16px}
.cat-head h2{margin:0}
.cat-head a{font-size:13px;color:var(--muted)} .cat-head a:hover{color:var(--fg)}
