/* ============================================
   MALWAREZERO DESIGN SYSTEM v2.0
   World-class security education
   ============================================ */

/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;font-size:15px;line-height:1.65;color:#e2e8f0;background:#07070a;-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:#00D4FF;text-decoration:none}
a:hover{color:#33ddff}
button{cursor:pointer;font-family:inherit}
ul,ol{list-style:none}

/* ===== TOKENS ===== */
:root{
  --bg:#07070a;--bg-raised:#0c0c12;--bg-card:#0f0f16;--bg-hover:#13131c;
  --bg-code:#0a0e18;--border:#1a1a28;--border-mid:#252538;
  --text:#f1f5f9;--text-2:#94a3b8;--text-3:#64748b;
  --cyan:#00D4FF;--cyan-dim:rgba(0,212,255,0.08);--cyan-glow:rgba(0,212,255,0.15);
  --red:#f43f5e;--red-dim:rgba(244,63,94,0.1);--amber:#f59e0b;--green:#10b981;
  --mono:'JetBrains Mono','Fira Code',monospace;
  --sans:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  --r:2px;--r-md:4px;--max:1200px;--pad:24px;
  --shadow:0 1px 3px rgba(0,0,0,0.4);--shadow-lg:0 8px 32px rgba(0,0,0,0.5);
}

/* ===== LAYOUT ===== */
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
main{min-height:70vh}
section{padding:96px 0}
section.sm{padding:56px 0}
section.lg{padding:128px 0}

/* ===== HEADER ===== */
header{position:sticky;top:0;z-index:1000;background:rgba(7,7,10,0.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);height:60px;display:flex;align-items:center}
.header-inner{display:flex;align-items:center;width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.logo svg{width:28px;height:28px}
.logo-name{font-family:var(--mono);font-size:14px;font-weight:700;color:var(--text);letter-spacing:-0.02em}
.logo-name span{color:var(--cyan)}
nav{display:flex;align-items:center;gap:2px;margin-left:48px;flex:1}
nav a{font-size:13.5px;font-weight:500;color:var(--text-3);text-decoration:none;padding:6px 12px;border-radius:var(--r);transition:color 150ms,background 150ms;position:relative}
nav a:hover{color:var(--text);background:rgba(255,255,255,0.05)}
nav a.active{color:var(--text)}
nav a.active::after{content:'';position:absolute;bottom:-1px;left:12px;right:12px;height:2px;background:var(--cyan);border-radius:2px 2px 0 0}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 18px;font-size:13px;font-weight:600;border-radius:var(--r);text-decoration:none;transition:all 150ms;white-space:nowrap}
.btn-primary{background:var(--cyan);color:#000;border:1px solid var(--cyan)}
.btn-primary:hover{background:#33ddff;border-color:#33ddff;color:#000}
.btn-ghost{background:transparent;color:var(--text-2);border:1px solid var(--border-mid)}
.btn-ghost:hover{border-color:var(--cyan);color:var(--cyan);background:var(--cyan-dim)}
.btn-lg{padding:12px 28px;font-size:14px}
.mobile-toggle{display:none;background:none;border:1px solid var(--border-mid);border-radius:var(--r);padding:7px;color:var(--text-3);transition:border-color 150ms}
.mobile-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.mobile-toggle svg{display:block;width:18px;height:18px}

/* ===== HERO ===== */
.hero{padding:96px 0 80px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:800px;height:600px;background:radial-gradient(ellipse,rgba(0,212,255,0.05) 0%,transparent 65%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;font-weight:500;color:var(--cyan);text-transform:uppercase;letter-spacing:0.15em;margin-bottom:20px}
.hero-eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--cyan);animation:pulse-dot 2s ease-in-out infinite}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:0.3}}
.hero h1{font-size:clamp(36px,4.5vw,62px);font-weight:800;line-height:1.05;letter-spacing:-0.03em;color:var(--text);margin-bottom:20px}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-sub{font-size:17px;line-height:1.7;color:var(--text-2);margin-bottom:36px;max-width:480px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative}

/* Terminal */
.terminal{background:var(--bg-code);border:1px solid var(--border-mid);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--shadow-lg),0 0 0 1px rgba(255,255,255,0.03)}
.terminal-bar{background:#111827;padding:10px 14px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--border)}
.terminal-dot{width:10px;height:10px;border-radius:50%}
.terminal-title{font-family:var(--mono);font-size:11px;color:var(--text-3);margin-left:4px}
.terminal-body{padding:16px 20px}
.terminal-line{font-family:var(--mono);font-size:12.5px;line-height:1.9}
.t-cmd{color:#60a5fa}
.t-out{color:#4ade80}
.t-warn{color:#fb923c}
.t-cursor{display:inline-block;width:8px;height:14px;background:var(--cyan);margin-left:2px;animation:blink 1s step-end infinite;vertical-align:text-bottom}
@keyframes blink{50%{opacity:0}}
.hero-threat-bar{display:flex;align-items:center;gap:10px;margin-top:16px;font-family:var(--mono);font-size:11px;color:var(--red)}
.hero-threat-dot{width:8px;height:8px;border-radius:50%;background:var(--red);animation:pulse-dot 1s ease-in-out infinite;flex-shrink:0}

/* ===== STATS ===== */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}
.stat-item{background:var(--bg-raised);padding:32px 28px;text-align:center}
.stat-val{font-family:var(--mono);font-size:40px;font-weight:700;letter-spacing:-0.04em;line-height:1;margin-bottom:8px;background:linear-gradient(135deg,#fff 0%,var(--cyan) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-lbl{font-size:12px;color:var(--text-3);text-transform:uppercase;letter-spacing:0.08em}

/* ===== SECTION HEADERS ===== */
.section-label{font-family:var(--mono);font-size:11px;font-weight:500;color:var(--cyan);text-transform:uppercase;letter-spacing:0.15em;margin-bottom:12px}
.section-title{font-size:clamp(26px,3vw,38px);font-weight:800;letter-spacing:-0.025em;color:var(--text);line-height:1.1;margin-bottom:12px}
.section-sub{font-size:16px;color:var(--text-2);line-height:1.7;max-width:560px}
.section-header{margin-bottom:56px}
.section-header.center{text-align:center}
.section-header.center .section-sub{margin:0 auto}

/* ===== ATTACK STEPS ===== */
.attack-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.attack-step{padding:32px 24px;border:1px solid var(--border);border-right:none;position:relative;background:var(--bg);transition:background 200ms}
.attack-step:last-child{border-right:1px solid var(--border)}
.attack-step:hover{background:var(--bg-raised)}
.step-num{font-family:var(--mono);font-size:10px;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:0.1em;margin-bottom:16px;opacity:0.7}
.step-icon{width:40px;height:40px;margin-bottom:16px;color:var(--text-3)}
.step-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:8px}
.step-desc{font-size:13px;color:var(--text-3);line-height:1.6}
.step-connector{position:absolute;top:50%;right:-14px;z-index:1;width:28px;height:2px;background:var(--border-mid)}
.step-connector::after{content:'→';position:absolute;right:-2px;top:-10px;font-size:14px;color:var(--text-3)}

/* ===== ATTACK CARDS ===== */
.attacks-section{background:var(--bg-raised)}
.attacks-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.attack-card{display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);padding:24px;text-decoration:none;transition:border-color 200ms,background 200ms;position:relative;overflow:hidden}
.attack-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--cyan);opacity:0;transition:opacity 200ms}
.attack-card:hover{border-color:var(--border-mid);background:var(--bg-hover)}
.attack-card:hover::before{opacity:1}
.ac-label{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.ac-icon{color:var(--text-3)}
.ac-badge{font-family:var(--mono);font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;padding:3px 8px;border-radius:var(--r)}
.badge-critical{background:var(--red-dim);color:var(--red)}
.badge-high{background:rgba(245,158,11,0.1);color:var(--amber)}
.badge-medium{background:rgba(234,179,8,0.1);color:#eab308}
.badge-low{background:rgba(16,185,129,0.1);color:var(--green)}
.ac-title{font-size:17px;font-weight:700;color:var(--text);margin-bottom:8px;letter-spacing:-0.01em}
.ac-desc{font-size:13.5px;color:var(--text-3);line-height:1.65;flex:1;margin-bottom:20px}
.ac-footer{display:flex;align-items:center;justify-content:space-between;margin-top:auto}
.ac-complexity{font-size:11px;color:var(--text-3);font-family:var(--mono)}
.ac-arrow{font-size:16px;color:var(--cyan);opacity:0;transition:opacity 200ms,transform 200ms}
.attack-card:hover .ac-arrow{opacity:1;transform:translateX(3px)}

/* ===== RISK CARDS ===== */
.risk-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.risk-card{display:flex;align-items:flex-start;gap:14px;padding:20px 22px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);text-decoration:none;transition:border-color 200ms,background 200ms}
.risk-card:hover{border-color:var(--border-mid);background:var(--bg-hover)}
.risk-icon{color:var(--cyan);flex-shrink:0;margin-top:1px}
.risk-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:4px}
.risk-desc{font-size:12.5px;color:var(--text-3);line-height:1.6}

/* ===== DEFENSE ===== */
.defense-section{background:var(--bg-raised)}
.defense-card{padding:28px 0;border-bottom:1px solid var(--border);display:flex;align-items:flex-start;gap:24px}
.defense-card:last-child{border-bottom:none}
.defense-num{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--cyan);width:28px;flex-shrink:0;padding-top:2px}
.defense-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px}
.defense-desc{font-size:13.5px;color:var(--text-3);line-height:1.65}

/* ===== TOOLS ===== */
.tools-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.tool-card{padding:20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);text-decoration:none;transition:border-color 200ms,background 200ms}
.tool-card:hover{border-color:var(--border-mid);background:var(--bg-hover)}
.tool-name{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--text);margin-bottom:6px}
.tool-desc{font-size:12px;color:var(--text-3);line-height:1.6}

/* ===== CTA ===== */
.cta-section{background:var(--bg-raised);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.cta-inner{max-width:640px;margin:0 auto;text-align:center;padding:80px var(--pad)}
.cta-inner h2{font-size:clamp(26px,3vw,40px);font-weight:800;letter-spacing:-0.025em;color:var(--text);margin-bottom:14px}
.cta-inner p{font-size:16px;color:var(--text-2);margin-bottom:32px;line-height:1.7}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ===== FOOTER ===== */
footer{background:var(--bg);border-top:1px solid var(--border);padding:56px 0 40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand p{font-size:13px;color:var(--text-3);line-height:1.7;margin-top:12px;max-width:280px}
.footer-col-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.12em;color:var(--text);margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:var(--text-3);text-decoration:none;transition:color 150ms}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{border-top:1px solid var(--border);padding-top:28px;display:flex;align-items:center;justify-content:space-between}
.footer-copy{font-size:12px;color:var(--text-3);font-family:var(--mono)}
.footer-copy span{color:var(--cyan)}

/* ===== CODE BLOCKS ===== */
pre{background:var(--bg-code);border:1px solid var(--border-mid);border-left:3px solid var(--cyan);border-radius:0 var(--r-md) var(--r-md) 0;padding:20px 24px;font-family:var(--mono);font-size:12.5px;line-height:1.75;color:#e2e8f0;overflow-x:auto;margin:24px 0;position:relative}
pre code{background:none;padding:0;border:none;color:inherit;font-size:inherit}
code{font-family:var(--mono);font-size:12.5px;background:var(--bg-code);color:#93c5fd;padding:2px 6px;border-radius:var(--r);border:1px solid var(--border)}

/* ===== TABLES ===== */
.table-wrap{overflow-x:auto;margin:24px 0;border-radius:var(--r-md);border:1px solid var(--border)}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;padding:12px 16px;background:var(--bg-raised);border-bottom:1px solid var(--border-mid);color:var(--text-3);font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;white-space:nowrap}
td{padding:12px 16px;border-bottom:1px solid var(--border);color:var(--text-2)}
tr:last-child td{border-bottom:none}
tr:hover td{background:rgba(255,255,255,0.02)}

/* ===== FAQ ACCORDION ===== */
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);overflow:hidden}
.faq-item[open]{border-color:var(--border-mid)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 22px;background:none;border:none;text-align:left;font-size:15px;font-weight:600;color:var(--text);cursor:pointer;transition:background 150ms}
.faq-q:hover{background:var(--bg-hover)}
.faq-q::after{content:'+';font-size:18px;color:var(--cyan);font-weight:300;flex-shrink:0}
.faq-item[open] .faq-q::after{content:'−'}
.faq-a{padding:0 22px 20px;font-size:14px;color:var(--text-2);line-height:1.75;border-top:1px solid var(--border);padding-top:16px}

/* ===== GLOSSARY ===== */
.glossary-a-z{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:48px}
.glossary-a-z a{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:600;color:var(--text-3);background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r);text-decoration:none;transition:all 150ms}
.glossary-a-z a:hover{border-color:var(--cyan);color:var(--cyan);background:var(--cyan-dim)}
.glossary-a-z a.active{background:var(--cyan);color:#000;border-color:var(--cyan)}
.glossary-letter-group{margin-bottom:48px}
.glossary-letter-title{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--cyan);text-transform:uppercase;letter-spacing:0.15em;margin-bottom:20px;padding-bottom:10px;border-bottom:1px solid var(--border-mid)}
.glossary-term{font-size:17px;font-weight:700;color:var(--text);padding:4px 0;border-bottom:1px solid var(--border);margin-bottom:12px;padding-bottom:8px}

/* ===== CONTENT META ===== */
.content-meta{display:flex;align-items:center;gap:20px;padding:14px 0;margin-bottom:40px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);font-size:12.5px;color:var(--text-3);font-family:var(--mono)}
.content-meta-item{display:flex;align-items:center;gap:6px}
.content-meta-item svg{color:var(--cyan)}

/* ===== PREV/NEXT ===== */
.prev-next{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:48px 0}
.pn-link{display:flex;flex-direction:column;padding:20px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);text-decoration:none;transition:border-color 200ms}
.pn-link.next{align-items:flex-end;text-align:right}
.pn-link:hover{border-color:var(--cyan)}
.pn-label{font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:0.1em;font-weight:700;font-family:var(--mono);margin-bottom:6px}
.pn-title{font-size:14px;font-weight:600;color:var(--text)}
.pn-arrow{font-size:18px;color:var(--cyan);margin-top:4px}

/* ===== BREADCRUMB ===== */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);font-family:var(--mono);padding:16px 0}
.breadcrumb a{color:var(--text-3);text-decoration:none;transition:color 150ms}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb-sep{color:var(--border-mid)}

/* ===== SHARE ===== */
.share-bar{display:flex;align-items:center;gap:10px;padding:24px 0;border-top:1px solid var(--border);margin-top:40px}
.share-label{font-size:11px;color:var(--text-3);text-transform:uppercase;letter-spacing:0.1em;font-weight:700;font-family:var(--mono);margin-right:4px}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;font-size:12px;font-weight:500;border:1px solid var(--border-mid);border-radius:var(--r);color:var(--text-3);text-decoration:none;transition:all 150ms}
.share-btn:hover{border-color:var(--cyan);color:var(--cyan)}

/* ===== TOC ===== */
.toc-sidebar{position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto;padding-right:20px;border-right:1px solid var(--border);scrollbar-width:thin}
.toc-title{font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:0.12em;font-weight:700;font-family:var(--mono);margin-bottom:12px}
.toc-link{display:block;font-size:13px;color:var(--text-3);text-decoration:none;padding:5px 10px;border-left:2px solid transparent;border-radius:0 var(--r) var(--r) 0;transition:all 150ms;margin-bottom:2px}
.toc-link:hover{color:var(--text);border-left-color:var(--border-mid)}
.toc-link.active{color:var(--cyan);border-left-color:var(--cyan);background:var(--cyan-dim)}

/* ===== CONTENT LAYOUT ===== */
.content-layout{display:grid;grid-template-columns:1fr 260px;gap:64px;align-items:start}
.content-main{min-width:0}
.content-sidebar{min-width:0}

/* ===== ARTICLE TYPOGRAPHY ===== */
.article-body h2{font-size:24px;font-weight:800;letter-spacing:-0.02em;color:var(--text);margin:48px 0 16px;padding-top:48px;border-top:1px solid var(--border)}
.article-body h2:first-of-type{margin-top:0;padding-top:0;border-top:none}
.article-body h3{font-size:18px;font-weight:700;color:var(--text);margin:32px 0 12px}
.article-body p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:20px}
.article-body ul,.article-body ol{margin:16px 0 20px 20px}
.article-body li{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:6px;list-style:disc}
.article-body ol li{list-style:decimal}
.article-body strong{font-weight:700;color:var(--text)}

/* ===== CARD (generic) ===== */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);padding:24px}
.card:hover{border-color:var(--border-mid)}

/* ===== FOCUS STATES ===== */
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:var(--r)}
:focus:not(:focus-visible){outline:none}

/* ===== SKIP LINK ===== */
.skip-link{position:absolute;top:-50px;left:16px;background:var(--cyan);color:#000;padding:10px 20px;font-size:13px;font-weight:700;text-decoration:none;border-radius:0 0 var(--r-md) var(--r-md);z-index:9999;transition:top 150ms}
.skip-link:focus{top:0;outline:none}

/* ===== RELATED ===== */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:40px}
.related-link{display:flex;flex-direction:column;padding:16px 20px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--r-md);text-decoration:none;transition:border-color 200ms,background 200ms;position:relative;padding-right:40px}
.related-link:hover{border-color:var(--border-mid);background:var(--bg-hover)}
.related-link::after{content:'→';position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--cyan);font-size:16px;opacity:0;transition:opacity 200ms}
.related-link:hover::after{opacity:1}
.related-cat{font-family:var(--mono);font-size:10px;color:var(--text-3);text-transform:uppercase;letter-spacing:0.1em;margin-bottom:6px}
.related-title{font-size:13.5px;font-weight:600;color:var(--text);line-height:1.5}

/* ===== RESPONSIVE ===== */
@media(max-width:1024px){
  .content-layout{grid-template-columns:1fr}
  .content-sidebar{display:none}
  .attack-steps{grid-template-columns:repeat(5,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .hero-grid{gap:48px}
}
@media(max-width:768px){
  section{padding:64px 0}
  section.lg{padding:80px 0}
  nav{display:none}
  .mobile-toggle{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1}
  .hero h1{font-size:32px}
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .attacks-grid{grid-template-columns:1fr}
  .risk-grid{grid-template-columns:1fr}
  .attack-steps{grid-template-columns:1fr;gap:1px}
  .step-connector{display:none}
  .attack-step{border-right:1px solid var(--border);border-bottom:none}
  .attack-step:last-child{border-bottom:1px solid var(--border)}
  .tools-grid{grid-template-columns:1fr 1fr}
  .two-col{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .prev-next{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:12px;text-align:center}
  .related-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
  .stats-row{grid-template-columns:1fr 1fr}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%;justify-content:center}
  .tools-grid{grid-template-columns:1fr}
}

/* ===== PRINT ===== */
@media print{
  header,footer,.breadcrumb,.share-bar,.prev-next,nav,.skip-link,.mobile-toggle{display:none!important}
  body{background:white!important;color:black!important;font-size:12pt}
  a{color:black!important;text-decoration:underline}
  pre,code{background:#f5f5f5!important;color:#333!important;border:1px solid #ccc!important}
  section{padding:24pt 0}
}