/* Breach Brief — shared styles (extracted from the v2 landing, extended for the blog format v3).
   Theming: CSS variables switched by [data-theme] on <html>; the anti-flash script in each
   page's <head> sets it before paint from localStorage ('bb-theme') or the system preference. */

:root, [data-theme="dark"]{
  --bg:#070b14; --bg2:#0b1220; --panel:#0d1524; --panel2:#101a2e;
  --line:#1e2c47; --red:#d92338; --red-dark:#7a1420;
  --text:#eef2f8; --muted:#9fb0c7; --muted2:#6e81a0;
  --header-bg:rgba(7,11,20,.88); --hero-glow:#14263f;
  --shadow:0 18px 40px rgba(0,0,0,.45); --input-bg:#0a1120;
  color-scheme:dark;
}
[data-theme="light"]{
  --bg:#f4f6fa; --bg2:#ffffff; --panel:#ffffff; --panel2:#eef2f8;
  --line:#d3dcea; --red:#c81f31; --red-dark:#7a1420;
  --text:#0b1220; --muted:#44597a; --muted2:#7186a5;
  --header-bg:rgba(244,246,250,.88); --hero-glow:#d7e4f5;
  --shadow:0 18px 40px rgba(11,18,32,.12); --input-bg:#ffffff;
  color-scheme:light;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:
    radial-gradient(1100px 600px at 50% -80px, var(--hero-glow) 0%, rgba(20,38,63,0) 60%),
    var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  line-height:1.6; -webkit-font-smoothing:antialiased;
  transition:background-color .35s ease,color .35s ease;
}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
section{padding:84px 0}
.kicker{letter-spacing:.28em;font-size:12px;font-weight:700;text-transform:uppercase;color:var(--red)}
h2{font-size:clamp(30px,4vw,42px);line-height:1.12;letter-spacing:-.01em}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head p{color:var(--muted);margin-top:14px;font-size:17px}

/* Header */
header{position:sticky;top:0;z-index:20;background:var(--header-bg);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.mark{font-weight:800;font-size:22px;letter-spacing:.14em;border:1.5px solid var(--text);padding:3px 9px 4px;position:relative;line-height:1;color:var(--text)}
.mark::after{content:"";position:absolute;left:-1.5px;right:-1.5px;top:52%;height:2px;background:var(--red)}
.brand-name{font-weight:700;letter-spacing:.22em;font-size:15px;text-transform:uppercase}
.brand-name span{color:var(--red)}
.nav-links{display:flex;gap:26px;align-items:center;font-size:14px}
.nav-links a{color:var(--muted);text-decoration:none}
.nav-links a:hover{color:var(--text)}
.btn{display:inline-block;text-decoration:none;font-weight:600;font-size:14px;padding:11px 22px;border-radius:8px;border:1px solid var(--line);color:var(--text);background:transparent;cursor:pointer;transition:transform .15s ease, box-shadow .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn-red{background:var(--red);border-color:var(--red);color:#fff}
.btn-red:hover{box-shadow:0 10px 24px rgba(217,35,56,.35)}
.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer;flex:none}
.theme-toggle:hover{color:var(--text)}
.theme-toggle svg{width:18px;height:18px;display:block}
[data-theme="dark"] .icon-sun{display:block}[data-theme="dark"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:none}[data-theme="light"] .icon-moon{display:block}

/* Hero (compact, blog home) */
.hero{padding:72px 0 56px;text-align:left}
.hero h1{font-size:clamp(38px,5.6vw,58px);line-height:1.05;letter-spacing:-.015em;max-width:820px;margin:18px 0 20px}
.hero h1 em{font-style:normal;color:var(--red)}
.hero .sub{color:var(--muted);font-size:18px;max-width:640px}
.hero-meta{letter-spacing:.18em;font-size:11.5px;color:var(--muted2);font-weight:600;margin-top:26px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:44px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 24px}
.stat .n{font-size:32px;font-weight:800;letter-spacing:-.01em}
.stat .n span{color:var(--red)}
.stat .l{color:var(--muted);font-size:13.5px;margin-top:4px}

/* Blog: featured post + post cards */
.featured{display:grid;grid-template-columns:1.15fr 1fr;gap:0;background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden;text-decoration:none;transition:transform .18s ease, box-shadow .18s ease}
a.featured:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.featured .thumb{aspect-ratio:16/9;height:100%}
.featured .body{padding:34px 34px 30px;display:flex;flex-direction:column}
.badge{align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--red);color:var(--red);border-radius:999px;padding:5px 12px;margin-bottom:16px}
.featured h3{font-size:clamp(24px,3vw,32px);line-height:1.18;margin:8px 0 12px}
.featured p{color:var(--muted);font-size:15.5px;flex:1}
.thumb{aspect-ratio:16/9;overflow:hidden;background:var(--panel2)}
.thumb img{width:100%;height:100%;object-fit:cover;display:block}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.postcard{background:var(--panel);border:1px solid var(--line);border-radius:16px;overflow:hidden;display:flex;flex-direction:column;text-decoration:none;transition:transform .18s ease, box-shadow .18s ease}
a.postcard:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.postcard .body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.postcard .no,.featured .no{letter-spacing:.24em;font-size:11px;font-weight:700;color:var(--red);text-transform:uppercase}
.postcard h3{font-size:21px;margin:10px 0 8px;line-height:1.25}
.postcard p{color:var(--muted);font-size:14.5px;flex:1}
.date{color:var(--muted2);font-size:13px;font-weight:600;letter-spacing:.04em}
.figure{font-size:32px;font-weight:800;margin:18px 0 2px}
.figure small{display:block;font-size:12.5px;font-weight:500;color:var(--muted2);margin-top:2px}
.go{color:var(--red);font-weight:600;font-size:14px;margin-top:12px}

/* Comparison (The Pattern) */
.compare{border:1px solid var(--line);border-radius:16px;overflow:hidden}
.compare .row{display:grid;grid-template-columns:1fr 1fr}
.compare .row + .row{border-top:1px solid var(--line)}
.compare .cell{padding:24px 28px;background:var(--panel)}
.compare .cell + .cell{border-left:1px solid var(--line);background:var(--panel2)}
.compare .cell h3{font-size:16.5px;margin-bottom:6px}
.compare .cell p{color:var(--muted);font-size:14.5px}
.compare .head .cell{font-weight:800;letter-spacing:.14em;font-size:12.5px;text-transform:uppercase}
.compare .head .cell.bad{color:var(--red)}
.compare .head .cell.good{color:var(--text)}

/* FAQ */
.faq{max-width:820px}
details{border:1px solid var(--line);border-radius:12px;background:var(--panel);margin-bottom:12px}
summary{cursor:pointer;padding:20px 24px;font-weight:700;font-size:16.5px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--red);font-size:22px;font-weight:400;flex:none}
details[open ] summary::after{content:"–"}
details .a{padding:0 24px 20px;color:var(--muted);font-size:15px}

/* Contact form */
.contact-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:44px;align-items:start}
.contact-info p{color:var(--muted);margin:14px 0;font-size:16px}
.contact-info .direct{font-size:15px}
.contact-info .direct a{color:var(--red);text-decoration:none;font-weight:600}
form{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:30px}
.frow{display:grid;grid-template-columns:1fr 1fr;gap:16px}
label{display:block;font-size:13px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.field{margin-bottom:18px}
input[type="text"],input[type="email"],select,textarea{
  width:100%;background:var(--input-bg);border:1px solid var(--line);border-radius:10px;
  padding:12px 14px;color:var(--text);font-size:15px;font-family:inherit}
textarea{min-height:130px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--red)}
.err{display:none;color:var(--red);font-size:13px;margin-top:6px}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea{border-color:var(--red)}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0}
.form-note{color:var(--muted2);font-size:12.5px;margin-top:14px}
.form-status{display:none;border-radius:10px;padding:14px 18px;font-size:14.5px;margin-top:18px}
.form-status.ok{display:block;background:rgba(46,160,90,.12);border:1px solid rgba(46,160,90,.5)}
.form-status.bad{display:block;background:rgba(217,35,56,.10);border:1px solid rgba(217,35,56,.5)}
.count{font-size:12px;color:var(--muted2);text-align:right;margin-top:4px}

/* CTA banner */
.banner{background:linear-gradient(135deg,var(--red-dark),var(--red));border-radius:20px;padding:48px 44px;display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.banner h2{color:#fff}
.banner p{color:rgba(255,255,255,.85);margin-top:8px;max-width:520px}
.banner .btn{background:#fff;color:var(--red-dark);border-color:#fff;font-size:15px;padding:14px 28px}

/* Post page */
.backlink{display:inline-block;margin:34px 0 6px;color:var(--muted);text-decoration:none;font-size:14.5px;font-weight:600}
.backlink:hover{color:var(--red)}
.post-head{max-width:820px}
.post-head h1{font-size:clamp(34px,5vw,52px);line-height:1.08;letter-spacing:-.015em;margin:14px 0 16px}
.post-meta{color:var(--muted2);font-size:14px;font-weight:600;letter-spacing:.05em;display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.post-meta .dot{opacity:.5}
.video-wrap{position:relative;padding-top:56.25%;border-radius:16px;overflow:hidden;border:1px solid var(--line);margin:34px 0 8px;background:#000}
.video-wrap iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.keystats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:30px 0 6px}
.brief{max-width:780px;margin-top:26px}
.brief h2{font-size:26px;margin:40px 0 12px}
.brief h2:first-child{margin-top:10px}
.brief p{color:var(--muted);font-size:16.5px;margin-bottom:16px}
.brief p strong,.brief li strong{color:var(--text)}
.brief ul{list-style:none;margin:6px 0 18px}
.brief li{padding:9px 0 9px 28px;position:relative;color:var(--muted);font-size:16px;border-top:1px solid var(--line)}
.brief li::before{content:"";position:absolute;left:2px;top:20px;width:12px;height:2px;background:var(--red)}
.post-cta{display:flex;gap:14px;flex-wrap:wrap;margin:42px 0 6px}
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:56px 0 10px}
.postnav a{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:22px 24px;text-decoration:none;transition:transform .18s ease, box-shadow .18s ease}
.postnav a:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.postnav .dir{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--muted2)}
.postnav .t{font-size:18px;font-weight:700;margin-top:6px;line-height:1.3}
.postnav a.next{text-align:right}
.postnav .empty{border:1px dashed var(--line);border-radius:14px;padding:22px 24px;color:var(--muted2);font-size:14px}

/* Footer */
footer{border-top:1px solid var(--line);padding:44px 0 52px;margin-top:20px}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;color:var(--muted);font-size:14.5px;margin-bottom:22px}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--text)}
.fineprint{color:var(--muted2);font-size:12.5px;max-width:820px}

@media (max-width:880px){
  .grid,.stats,.keystats{grid-template-columns:1fr}
  .featured{grid-template-columns:1fr}
  .featured .thumb{height:auto}
  .compare .row{grid-template-columns:1fr}
  .compare .cell + .cell{border-left:none;border-top:1px solid var(--line)}
  .contact-grid,.frow,.postnav{grid-template-columns:1fr}
  .postnav a.next{text-align:left}
  .nav-links a:not(.btn){display:none}
  section{padding:60px 0}
  .hero{padding:52px 0 44px}
}