/* ===========================================================
   Andy Repton — design system (dark / Trust & Authority)
   Single source of truth. Brand continuity with the live site:
   near-black surfaces, Inter, blue accent #3b82f6.
   =========================================================== */
:root{
  --bg:#0a0a0a;
  --bg-2:#0f1115;
  --surface:#15181e;
  --surface-2:#1b1f27;
  --line:#262a31;
  --line-2:#323843;
  --text:#ffffff;
  --text-2:#b3b9c4;     /* body — ~9:1 on --bg */
  --muted:#868d99;      /* meta/small — use ≥14px */
  --accent:#3b82f6;
  --accent-ink:#2563eb;
  --accent-soft:rgba(59,130,246,.12);
  --gold:#c9a44c;       /* sparing highlight only */
  --ok:#34d399;
  --warn:#fbbf24;
  --bad:#f87171;
  --radius:14px;
  --maxw:1140px;
  --nav-bg:rgba(10,10,10,.82);
  --h1a:#ffffff;
  --h1b:#9aa1ac;
  --shadow:rgba(0,0,0,.8);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#ffffff;
  --bg-2:#f4f7fb;
  --surface:#ffffff;
  --surface-2:#f1f4f8;
  --line:#e4e8ef;
  --line-2:#cbd5e1;
  --text:#0b1220;
  --text-2:#48566b;       /* ~7:1 on white */
  --muted:#5d6b7e;        /* ~5:1 — use ≥14px */
  --accent:#2563eb;
  --accent-ink:#1d4ed8;
  --accent-soft:rgba(37,99,235,.10);
  --nav-bg:rgba(255,255,255,.85);
  --h1a:#0b1220;
  --h1b:#46566c;
  --shadow:rgba(15,23,42,.14);
  color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}
em{font-style:italic}
img{max-width:100%;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.reading{max-width:760px;margin:0 auto;padding:0 24px}
.center{text-align:center;margin-inline:auto}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* Nav */
header.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);backdrop-filter:saturate(160%) blur(12px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px;max-width:var(--maxw);margin:0 auto;padding:0 24px;position:relative}
.brand{font-weight:700;letter-spacing:-.02em;font-size:16px;color:var(--text);white-space:nowrap}
.brand span{color:var(--muted);font-weight:500}
@media(max-width:560px){.brand span{display:none}}
.navtoggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line-2);border-radius:10px;background:transparent;color:var(--text);cursor:pointer;transition:border-color .2s}
.navtoggle:hover{border-color:var(--accent)}
.navtoggle:focus-visible{outline:2px solid var(--text);outline-offset:2px}
.navtoggle svg{width:20px;height:20px}
.nav-actions{display:flex;align-items:center;gap:10px}
@media(max-width:520px){.nav-actions{gap:7px}}
.nav-links{position:absolute;top:58px;right:24px;flex-direction:column;align-items:stretch;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px;min-width:232px;box-shadow:0 24px 50px -20px var(--shadow);display:none;z-index:60}
header.nav.open .nav-links{display:flex}
.nav-links a{font-size:14.5px;color:var(--text-2);font-weight:500;padding:11px 12px;border-radius:8px}
.nav-links a:hover{color:var(--text);background:var(--bg-2)}
.nav-links a.active{color:var(--text);font-weight:600;background:var(--accent-soft)}
.nav-links .btn{margin-top:6px;text-align:center}
.nav-links .theme-toggle{align-self:flex-start;margin-top:4px}
.theme-toggle{background:transparent;border:1px solid var(--line-2);color:var(--text-2);width:38px;height:38px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:color .2s,border-color .2s}
.theme-toggle:hover{color:var(--text);border-color:var(--accent)}
.theme-toggle:focus-visible{outline:2px solid var(--text);outline-offset:2px}
.theme-toggle svg{width:18px;height:18px}
[data-theme="dark"] .theme-toggle .icon-moon{display:none}
[data-theme="light"] .theme-toggle .icon-sun{display:none}
/* nav is a burger dropdown on all widths */

/* Buttons */
.btn{display:inline-block;background:var(--accent);color:#fff;padding:13px 24px;border-radius:10px;font-weight:600;font-size:15px;border:1px solid var(--accent);cursor:pointer;font-family:inherit;transition:background .2s,transform .2s,box-shadow .2s}
.btn:hover{background:var(--accent-ink);transform:translateY(-2px);box-shadow:0 12px 30px -10px rgba(59,130,246,.45)}
.btn:focus-visible{outline:2px solid var(--text);outline-offset:2px}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line-2)}
.btn.ghost:hover{background:var(--surface);box-shadow:none}
.btn.sm{padding:9px 16px;font-size:14px;border-radius:9px}
.btn.lg{padding:16px 32px;font-size:16px}
.btn.gold{background:var(--gold);border-color:var(--gold);color:#1a1300}
.btn.gold:hover{background:#d9b461}

/* Eyebrow / hero */
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.hero{padding:100px 0 72px}
.hero.soft{background:linear-gradient(180deg,var(--bg-2),var(--bg))}
h1{font-size:clamp(34px,6vw,64px);line-height:1.05;letter-spacing:-.03em;font-weight:800;max-width:15ch;background:linear-gradient(135deg,var(--h1a) 0%,var(--h1b) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lede{font-size:clamp(17px,2.1vw,20px);color:var(--text-2);margin-top:24px;max-width:60ch}
.cta-row{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.zerohype{margin-top:30px;font-size:14px;color:var(--muted);display:flex;align-items:center;gap:10px}
.zerohype b{color:var(--text)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}

/* Credibility strip */
.cred{padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-2)}
.cred .row{display:flex;gap:34px;flex-wrap:wrap;align-items:center;justify-content:center;font-size:14px;color:var(--muted)}
.cred b{color:var(--text);font-weight:600}

/* Sections */
section.pad{padding:84px 0}
.sec-head{max-width:62ch;margin-bottom:44px}
.sec-head h2{font-size:clamp(26px,3.6vw,40px);letter-spacing:-.025em;line-height:1.12}
.sec-head p{color:var(--text-2);font-size:17px;margin-top:14px}

/* Cards (services / menu) */
.grid{display:grid;gap:18px}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-2{grid-template-columns:repeat(2,1fr)}
@media(max-width:820px){.grid.cols-3{grid-template-columns:1fr}.grid.cols-2{grid-template-columns:1fr}}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:30px;transition:border-color .2s,transform .2s,box-shadow .2s}
.card:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 24px 50px -30px var(--shadow)}
a.card{color:inherit}
.card .knum{font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--accent)}
.card h3{font-size:21px;letter-spacing:-.02em;margin-top:8px}
.card .sub{color:var(--muted);font-size:13.5px;margin-top:3px;font-weight:600}
.card p{color:var(--text-2);font-size:15px;margin-top:12px;flex:1}
.card .tags{display:flex;gap:7px;flex-wrap:wrap;margin-top:16px}
.card .tags span{font-size:12px;color:var(--text-2);background:var(--bg-2);border:1px solid var(--line);padding:4px 10px;border-radius:7px}
.card .go{margin-top:18px;font-size:14px;font-weight:700;color:var(--accent)}

/* Panels / split */
.split{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:820px){.split{grid-template-columns:1fr}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px}
.panel .ptag{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent)}
.panel h3{font-size:20px;letter-spacing:-.01em;margin-top:6px}
.panel p{color:var(--text-2);margin-top:10px;font-size:15.5px}
.panel h4{font-size:12px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);margin:18px 0 8px}

/* Metrics / trust */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
@media(max-width:680px){.metrics{grid-template-columns:1fr}}
.metric{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:26px;text-align:center}
.metric .big{font-size:34px;font-weight:800;letter-spacing:-.03em;color:var(--text)}
.metric .lbl{color:var(--text-2);font-size:14px;margin-top:6px}

/* Module chips / bullet lists */
ul.modules{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
ul.modules li{background:var(--bg-2);border:1px solid var(--line);padding:6px 12px;border-radius:8px;font-size:13.5px;color:var(--text-2)}
ul.bullets{list-style:none;display:flex;flex-direction:column;gap:10px;margin-top:6px}
ul.bullets li{padding-left:28px;position:relative;color:var(--text-2);font-size:15.5px}
ul.bullets li::before{content:"";position:absolute;left:4px;top:9px;width:9px;height:9px;border-radius:50%;background:var(--accent)}

/* Steps (experiential flow) */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
@media(max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.steps{grid-template-columns:1fr}}
.step{background:var(--surface);border:1px solid var(--line);border-top:3px solid var(--accent);border-radius:12px;padding:20px 16px}
.step .sn{font-size:12px;font-weight:800;color:var(--accent);letter-spacing:.06em}
.step h5{font-size:15.5px;letter-spacing:-.01em;margin-top:6px}
.step p{font-size:13.5px;color:var(--text-2);margin-top:7px;line-height:1.5}

/* Callout */
.callout{border-left:4px solid var(--accent);background:var(--surface);padding:20px 24px;border-radius:0 12px 12px 0;margin:24px 0}
.callout.gold{border-color:var(--gold)}
.callout .lbl{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);display:block;margin-bottom:6px}
.callout.gold .lbl{color:var(--gold)}
.callout p{margin:0;color:var(--text)}

/* Bands / CTA */
.band{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:72px 0}
.band h2{font-size:clamp(24px,3.4vw,36px);letter-spacing:-.02em;max-width:24ch}
.band p{color:var(--text-2);margin-top:16px;max-width:64ch;font-size:17px}
.cta-band{background:var(--surface-2);border:1px solid var(--line);border-radius:18px;padding:48px;margin:48px auto;text-align:center}
.cta-band h2{font-size:clamp(24px,3.2vw,34px);letter-spacing:-.02em;background:linear-gradient(135deg,var(--h1a),var(--h1b));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.cta-band p{color:var(--text-2);margin:14px auto 0;max-width:54ch}
.cta-band .cta-row{justify-content:center;margin-top:28px}

footer{border-top:1px solid var(--line);padding:36px 0;color:var(--muted);font-size:13.5px;background:var(--bg-2)}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a{color:var(--text-2)}