/* ============================================================
   DriverBoosterDownload — "system utility / boost" identity
   Display: Space Grotesk · Body: Inter · Data: JetBrains Mono
   ============================================================ */

:root{
  --ink:#0b1220;          /* near-black navy base */
  --ink-2:#111b30;        /* raised navy surface  */
  --ink-3:#1b2942;        /* borders on dark      */
  --paper:#ffffff;
  --mist:#f4f7fc;         /* light section bg     */
  --mist-2:#eaf0fb;
  --line:#e2e8f4;         /* light borders        */

  --blue:#2563eb;         /* primary action       */
  --blue-d:#1d4ed8;
  --cyan:#06b6d4;         /* boost accent         */
  --green:#10b981;        /* verified / safe      */
  --amber:#f59e0b;        /* caution              */
  --red:#ef4444;          /* danger / avoid       */

  --tx:#0f1b30;           /* body text on light   */
  --tx-2:#4a5a75;         /* muted text           */
  --tx-inv:#eaf1ff;       /* text on dark         */
  --tx-inv-2:#9fb2d4;

  --r:14px;               /* radius               */
  --r-lg:22px;
  --shadow:0 1px 2px rgba(11,18,32,.06), 0 12px 32px -12px rgba(11,18,32,.18);
  --shadow-lg:0 24px 60px -20px rgba(37,99,235,.35);
  --wrap:1180px;
  --grad:linear-gradient(120deg,var(--blue),var(--cyan));
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:"Inter",system-ui,sans-serif;
  color:var(--tx);background:var(--paper);line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:"Space Grotesk",sans-serif;line-height:1.12;letter-spacing:-.02em;margin:0 0 .5em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.ic{width:20px;height:20px;flex:0 0 auto}
.ic-sm{width:15px;height:15px;flex:0 0 auto;vertical-align:-2px}
.skip{position:absolute;left:-999px;top:0;background:var(--blue);color:#fff;padding:10px 16px;z-index:99;border-radius:0 0 10px 0}
.skip:focus{left:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;
  font-weight:600;font-family:"Space Grotesk",sans-serif;
  padding:.8em 1.35em;border-radius:12px;border:1px solid transparent;
  cursor:pointer;transition:transform .15s ease, box-shadow .2s ease, background .2s;
  font-size:1rem;line-height:1;
}
.btn .ic{width:19px;height:19px}
.btn-sm{padding:.62em 1em;font-size:.9rem;border-radius:10px}
.btn-lg{padding:1.05em 1.9em;font-size:1.08rem;border-radius:14px}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 24px -8px rgba(37,99,235,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -8px rgba(37,99,235,.7)}
.btn-ghost{background:rgba(255,255,255,.06);color:var(--tx-inv);border-color:rgba(255,255,255,.16)}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-light{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-light:hover{border-color:var(--blue);color:var(--blue)}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}

/* ---------- Header ---------- */
.site-head{position:sticky;top:0;z-index:40;background:rgba(11,18,32,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--ink-3)}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:.6em;color:var(--tx-inv);font-family:"Space Grotesk",sans-serif}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--grad);color:#fff;box-shadow:0 6px 16px -4px rgba(6,182,212,.6)}
.brand-mark .ic{width:19px;height:19px}
.brand-txt{font-weight:600;font-size:1.16rem;letter-spacing:-.02em}
.brand-txt b{font-weight:700}
.brand-tld{color:var(--cyan);font-weight:500}
.nav{display:flex;align-items:center;gap:.35em}
.nav a{color:var(--tx-inv-2);padding:.5em .8em;border-radius:9px;font-size:.94rem;font-weight:500;transition:color .15s,background .15s}
.nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-cta{background:var(--grad);color:#fff !important;font-family:"Space Grotesk",sans-serif;font-weight:600;margin-left:.4em}
.nav-cta .ic{width:16px;height:16px}
.nav-cta:hover{background:var(--grad) !important;filter:brightness(1.08)}
.nav-toggle{display:none;background:none;border:1px solid var(--ink-3);color:var(--tx-inv);border-radius:10px;padding:8px;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:radial-gradient(1100px 500px at 78% -10%,rgba(6,182,212,.22),transparent 60%),radial-gradient(900px 500px at 8% 10%,rgba(37,99,235,.28),transparent 55%),var(--ink);color:var(--tx-inv);padding:82px 0 96px}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--ink-3) 1px,transparent 1px),linear-gradient(90deg,var(--ink-3) 1px,transparent 1px);background-size:52px 52px;opacity:.25;mask-image:radial-gradient(700px 400px at 50% 0%,#000,transparent 75%);pointer-events:none}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:54px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:.5em;font-family:"JetBrains Mono",monospace;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase;color:var(--cyan);background:rgba(6,182,212,.1);border:1px solid rgba(6,182,212,.3);padding:.45em .9em;border-radius:100px;margin-bottom:20px}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(16,185,129,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 8px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,0)}}
.hero h1{font-size:clamp(2.3rem,4.4vw,3.5rem);font-weight:700;margin-bottom:.35em}
.hero h1 .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lede{font-size:1.15rem;color:var(--tx-inv-2);max-width:34em;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px 26px;margin-top:30px;font-size:.9rem;color:var(--tx-inv-2)}
.hero-meta span{display:inline-flex;align-items:center;gap:.5em}
.hero-meta .ic{color:var(--green);width:17px;height:17px}

/* Hero scan panel (signature element) */
.scan{background:linear-gradient(180deg,rgba(27,41,66,.9),rgba(17,27,48,.9));border:1px solid var(--ink-3);border-radius:var(--r-lg);padding:22px;box-shadow:var(--shadow-lg);backdrop-filter:blur(6px)}
.scan-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.scan-top .t{display:flex;align-items:center;gap:.6em;font-family:"Space Grotesk",sans-serif;font-weight:600;color:#fff}
.scan-top .t .ic{color:var(--cyan)}
.scan-badge{font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--green);border:1px solid rgba(16,185,129,.35);background:rgba(16,185,129,.1);padding:.3em .6em;border-radius:7px}
.scan-row{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:11px;background:rgba(11,18,32,.5);border:1px solid var(--ink-3);margin-bottom:9px}
.scan-row .r-ic{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;background:rgba(37,99,235,.16);color:var(--cyan);flex:0 0 auto}
.scan-row .r-ic .ic{width:17px;height:17px}
.scan-row .r-name{font-weight:600;font-size:.9rem;color:#fff}
.scan-row .r-sub{font-size:.76rem;color:var(--tx-inv-2);font-family:"JetBrains Mono",monospace}
.scan-row .r-tag{margin-left:auto;font-size:.72rem;font-family:"JetBrains Mono",monospace;padding:.28em .6em;border-radius:7px}
.tag-old{color:var(--amber);background:rgba(245,158,11,.12);border:1px solid rgba(245,158,11,.3)}
.tag-ok{color:var(--green);background:rgba(16,185,129,.12);border:1px solid rgba(16,185,129,.3)}
.scan-bar{height:6px;border-radius:100px;background:var(--ink-3);overflow:hidden;margin-top:14px}
.scan-bar i{display:block;height:100%;width:72%;background:var(--grad);border-radius:100px;animation:fill 2.4s ease forwards}
@keyframes fill{from{width:0}}
.scan-foot{display:flex;justify-content:space-between;font-size:.76rem;color:var(--tx-inv-2);font-family:"JetBrains Mono",monospace;margin-top:9px}

/* ---------- Trust strip ---------- */
.strip{background:var(--ink-2);border-bottom:1px solid var(--ink-3);color:var(--tx-inv-2)}
.strip .wrap{display:flex;flex-wrap:wrap;justify-content:center;gap:14px 38px;padding:16px 22px;font-size:.86rem}
.strip span{display:inline-flex;align-items:center;gap:.5em}
.strip .ic{color:var(--cyan);width:16px;height:16px}

/* ---------- Section shell ---------- */
.section{padding:72px 0}
.section.mist{background:var(--mist)}
.sec-head{max-width:640px;margin:0 auto 44px;text-align:center}
.sec-tag{display:inline-block;font-family:"JetBrains Mono",monospace;font-size:.76rem;letter-spacing:.05em;text-transform:uppercase;color:var(--blue);background:var(--mist-2);border:1px solid var(--line);padding:.4em .85em;border-radius:100px;margin-bottom:16px}
.sec-head h2{font-size:clamp(1.8rem,3vw,2.5rem)}
.sec-head p{color:var(--tx-2);font-size:1.08rem;margin-bottom:0}

/* ---------- Download cards grid ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{position:relative;display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .22s ease,border-color .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:transparent}
.card::before{content:"";position:absolute;inset:0;border-radius:var(--r-lg);padding:1px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .22s}
.card:hover::before{opacity:1}
.card-ic{width:48px;height:48px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(140deg,var(--mist-2),#fff);border:1px solid var(--line);color:var(--blue);margin-bottom:18px}
.card-ic .ic{width:24px;height:24px}
.card-tag{position:absolute;top:22px;right:22px;font-family:"JetBrains Mono",monospace;font-size:.72rem;color:var(--tx-2);background:var(--mist);border:1px solid var(--line);padding:.3em .6em;border-radius:7px}
.card h3{font-size:1.18rem;margin-bottom:.4em}
.card p{color:var(--tx-2);font-size:.95rem;flex:1}
.card-link{display:inline-flex;align-items:center;gap:.4em;margin-top:14px;font-family:"Space Grotesk",sans-serif;font-weight:600;color:var(--blue);font-size:.95rem}
.card-link .ic{width:17px;height:17px;transition:transform .18s}
.card:hover .card-link .ic{transform:translateX(3px)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s}
.step{background:var(--paper);border:1px solid var(--line);border-radius:var(--r);padding:24px;position:relative}
.step::before{counter-increment:s;content:"0" counter(s);font-family:"JetBrains Mono",monospace;font-weight:600;font-size:.85rem;color:#fff;background:var(--grad);display:inline-grid;place-items:center;width:34px;height:34px;border-radius:9px;margin-bottom:14px}
.step h4{font-size:1.05rem;margin-bottom:.3em}
.step p{color:var(--tx-2);font-size:.9rem;margin:0}

/* ---------- Feature split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.feat-list{list-style:none;padding:0;margin:0;display:grid;gap:16px}
.feat-list li{display:flex;gap:14px;align-items:flex-start}
.feat-list .fi{width:38px;height:38px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;background:var(--mist-2);color:var(--blue)}
.feat-list .fi .ic{width:20px;height:20px}
.feat-list h4{font-size:1.05rem;margin:0 0 .15em}
.feat-list p{margin:0;color:var(--tx-2);font-size:.93rem}
.panel{background:var(--ink);border-radius:var(--r-lg);padding:34px;color:var(--tx-inv);border:1px solid var(--ink-3);position:relative;overflow:hidden}
.panel::before{content:"";position:absolute;inset:0;background:radial-gradient(400px 240px at 90% 0,rgba(6,182,212,.25),transparent 60%)}
.panel-stat{position:relative;z-index:1}
.panel-stat .big{font-family:"Space Grotesk",sans-serif;font-weight:700;font-size:3.3rem;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1}
.panel-stat p{color:var(--tx-inv-2);margin:.2em 0 0}
.panel hr{border:none;border-top:1px solid var(--ink-3);margin:26px 0}

/* ---------- CTA band ---------- */
.cta-band{background:var(--grad);border-radius:var(--r-lg);padding:52px 40px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 20%,rgba(255,255,255,.18),transparent 40%),radial-gradient(circle at 85% 80%,rgba(255,255,255,.14),transparent 45%)}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{font-size:clamp(1.7rem,3vw,2.4rem);color:#fff}
.cta-band p{color:rgba(255,255,255,.9);max-width:40em;margin:0 auto 26px;font-size:1.08rem}

/* ---------- Article (keyword pages) ---------- */
.page-hero{background:radial-gradient(800px 400px at 80% -20%,rgba(6,182,212,.18),transparent 60%),var(--ink);color:var(--tx-inv);padding:64px 0 56px}
.page-hero .wrap{max-width:820px}
.crumb{font-family:"JetBrains Mono",monospace;font-size:.8rem;color:var(--tx-inv-2);margin-bottom:18px;display:flex;gap:.5em;align-items:center}
.crumb a{color:var(--cyan)}
.page-hero .p-ic{width:56px;height:56px;border-radius:14px;background:var(--grad);display:grid;place-items:center;color:#fff;margin-bottom:20px;box-shadow:var(--shadow-lg)}
.page-hero .p-ic .ic{width:28px;height:28px}
.page-hero h1{font-size:clamp(2rem,3.6vw,2.9rem)}
.page-hero .sub{font-size:1.15rem;color:var(--tx-inv-2);max-width:40em;margin-bottom:26px}

.article{padding:56px 0 20px}
.article .wrap{max-width:820px}
.article h2{font-size:1.6rem;margin:1.6em 0 .5em;padding-top:.2em}
.article h2:first-child{margin-top:0}
.article h3{font-size:1.22rem;margin:1.4em 0 .4em}
.article p,.article li{color:#26374f;font-size:1.045rem}
.article ul,.article ol{padding-left:1.3em;margin:0 0 1.2em}
.article li{margin-bottom:.5em}
.article strong{color:var(--tx)}
.article a{color:var(--blue);font-weight:500;border-bottom:1px solid var(--mist-2)}
.article a:hover{border-color:var(--blue)}

.lead{font-size:1.18rem !important;color:var(--tx-2) !important;border-left:3px solid var(--cyan);padding-left:18px;margin-bottom:1.6em}

.callout{display:flex;gap:16px;background:var(--mist);border:1px solid var(--line);border-left:4px solid var(--blue);border-radius:12px;padding:20px 22px;margin:1.6em 0}
.callout .c-ic{flex:0 0 auto;width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:#fff;color:var(--blue);border:1px solid var(--line)}
.callout h4{margin:0 0 .25em;font-size:1.05rem}
.callout p{margin:0;font-size:.98rem;color:var(--tx-2)}
.callout.warn{border-left-color:var(--amber);background:#fff9ef;border-color:#f6e2bd}
.callout.warn .c-ic{color:var(--amber)}
.callout.danger{border-left-color:var(--red);background:#fef2f2;border-color:#f6cccc}
.callout.danger .c-ic{color:var(--red)}
.callout.safe{border-left-color:var(--green);background:#f0fbf6;border-color:#c6ecd8}
.callout.safe .c-ic{color:var(--green)}

.dl-box{background:linear-gradient(160deg,var(--ink),var(--ink-2));border:1px solid var(--ink-3);border-radius:var(--r-lg);padding:30px 32px;margin:2em 0;color:var(--tx-inv);display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.dl-box .dl-txt{flex:1;min-width:220px}
.dl-box h3{color:#fff;margin:0 0 .3em;font-size:1.3rem}
.dl-box p{margin:0;color:var(--tx-inv-2);font-size:.96rem}
.dl-box .dl-meta{font-family:"JetBrains Mono",monospace;font-size:.78rem;color:var(--cyan);margin-top:.6em;display:block}

.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden;margin:1.5em 0}
.spec-grid div{padding:14px 18px;border-bottom:1px solid var(--line)}
.spec-grid div:nth-child(odd){background:var(--mist);font-weight:600;font-family:"Space Grotesk",sans-serif;color:var(--tx)}
.spec-grid div:nth-child(even){font-family:"JetBrains Mono",monospace;font-size:.92rem;color:var(--tx-2)}
.spec-grid div:nth-last-child(-n+2){border-bottom:none}

/* Comparison table */
.ctable{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.98rem;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ctable th,.ctable td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.ctable thead th{background:var(--ink);color:#fff;font-family:"Space Grotesk",sans-serif;font-weight:600}
.ctable tbody tr:nth-child(even){background:var(--mist)}
.ctable td:first-child{font-weight:600;font-family:"Space Grotesk",sans-serif;color:var(--tx)}
.yes{color:var(--green);font-weight:600}
.no{color:var(--red);font-weight:600}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:var(--paper);overflow:hidden}
.faq summary{cursor:pointer;padding:18px 20px;font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--blue);font-weight:400;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .faq-body{padding:16px 20px 20px;color:var(--tx-2)}
.faq .faq-body p{margin:0}

/* related */
.related{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px}
.rel{display:flex;align-items:center;gap:12px;padding:16px;border:1px solid var(--line);border-radius:12px;background:var(--paper);transition:border-color .2s,transform .15s}
.rel:hover{border-color:var(--blue);transform:translateY(-2px)}
.rel .r-ic{width:36px;height:36px;flex:0 0 auto;border-radius:9px;display:grid;place-items:center;background:var(--mist-2);color:var(--blue)}
.rel .r-ic .ic{width:19px;height:19px}
.rel span{font-family:"Space Grotesk",sans-serif;font-weight:600;font-size:.95rem;line-height:1.25}

/* ---------- Footer ---------- */
.site-foot{background:var(--ink);color:var(--tx-inv-2);padding:56px 0 30px;border-top:1px solid var(--ink-3)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:38px;border-bottom:1px solid var(--ink-3)}
.foot-brand .brand{margin-bottom:14px}
.foot-tag{max-width:30em;font-size:.95rem;margin-bottom:18px}
.foot-col h4{color:#fff;font-size:.95rem;margin-bottom:14px;font-family:"Space Grotesk",sans-serif}
.foot-col a{display:block;color:var(--tx-inv-2);padding:5px 0;font-size:.92rem;transition:color .15s}
.foot-col a:hover{color:var(--cyan)}
.foot-legal{padding-top:24px;font-size:.85rem}
.foot-legal p{margin:0 0 8px}
.foot-legal strong{color:var(--tx-inv)}
.foot-copy{color:#6b7fa3}
.foot-copy a{color:var(--cyan)}

/* ---------- Responsive ---------- */
@media (max-width:960px){
  .hero .wrap{grid-template-columns:1fr;gap:40px}
  .scan{max-width:460px}
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .related{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:66px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--ink);border-bottom:1px solid var(--ink-3);padding:12px;gap:4px;display:none}
  .nav-toggle[aria-expanded="true"]+.nav{display:flex}
  .nav a{padding:12px}
  .nav-cta{justify-content:center;margin:6px 0 0}
  .section{padding:52px 0}
  .cards,.steps,.spec-grid,.related{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .dl-box{flex-direction:column;align-items:flex-start}
  .hero{padding:60px 0 70px}
  .cta-band{padding:38px 24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;scroll-behavior:auto}
  .card:hover,.rel:hover,.btn-primary:hover{transform:none}
}