:root{--bg:#090c10;--panel:#10151b;--panel2:#131a22;--text:#eff4fa;--muted:#9ca9b7;--line:#26313c;--accent:#68d6ff;--accent2:#89f0c6;--warn:#f4c15d;--danger:#ff9d9d;--max:1180px;--article:850px}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:linear-gradient(180deg,#080b0e,#0a0d11 35%,#090c10);color:var(--text);line-height:1.67}
a{color:var(--accent);text-decoration:none} a:hover{text-decoration:underline}.wrap{width:min(var(--max),calc(100% - 32px));margin:auto}
header{position:sticky;top:0;z-index:20;background:rgba(9,12,16,.92);backdrop-filter:blur(13px);border-bottom:1px solid var(--line)}.nav{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:18px}.brand{font-weight:850;color:var(--text);letter-spacing:.1px;white-space:nowrap}.brand span{color:var(--accent)}nav{display:flex;gap:16px;align-items:center;flex-wrap:wrap}nav a{font-size:.91rem;color:var(--muted)}nav a:hover{color:var(--text);text-decoration:none}
.hero{padding:78px 0 48px}.hero.compact{padding:55px 0 30px}.eyebrow{display:inline-block;padding:5px 10px;border:1px solid var(--line);border-radius:999px;color:var(--accent2);font-size:.8rem;background:#0c1218;letter-spacing:.03em}.hero h1{font-size:clamp(2.35rem,5.8vw,5.25rem);line-height:1.02;margin:17px 0 18px;letter-spacing:-.04em}.hero.compact h1{font-size:clamp(2.1rem,4.5vw,4rem)}.lead{max-width:900px;color:#c8d3df;font-size:1.13rem}.actions{display:flex;gap:11px;flex-wrap:wrap;margin-top:23px}.btn{display:inline-block;padding:10px 15px;border-radius:10px;border:1px solid var(--line);background:var(--panel);color:var(--text);font-weight:700}.btn.primary{background:var(--text);color:#091017;border-color:var(--text)}.btn:hover{text-decoration:none;transform:translateY(-1px)}
.section{padding:39px 0}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:16px;padding:21px}.card h3{margin:0 0 7px;font-size:1.08rem}.card p{color:var(--muted)}.kicker{font-size:.77rem;color:var(--accent);font-weight:800;text-transform:uppercase;letter-spacing:.12em}.tag{display:inline-block;margin:3px 4px 3px 0;padding:3px 7px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:.74rem}
.article{width:min(var(--article),calc(100% - 32px));margin:auto;padding:18px 0 55px}.article h2{font-size:1.75rem;margin:42px 0 12px;line-height:1.2}.article h3{font-size:1.2rem;margin:27px 0 9px}.article p,.article li{color:#c4cfda}.article ul,.article ol{padding-left:22px}.article li{margin:8px 0}.article .lede{font-size:1.12rem;color:#d5dee8}.toc{background:#0d1218;border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:25px 0}.toc strong{display:block;margin-bottom:8px}.toc a{display:block;margin:5px 0;color:#b7ddec}.meta{display:flex;gap:9px;flex-wrap:wrap;margin:15px 0 0;color:var(--muted);font-size:.82rem}
pre{background:#070a0e;border:1px solid var(--line);border-radius:12px;padding:16px;overflow:auto;color:#dbe7f2;font-size:.91rem;line-height:1.5}code{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;background:#0b1117;border:1px solid #25313d;border-radius:5px;padding:2px 5px;color:#d7f2ff}pre code{background:none;border:0;padding:0;color:inherit}.code-title{font-size:.78rem;color:#8593a1;margin:10px 0 5px}.note,.warning,.lesson{padding:14px 16px;border-radius:10px;margin:20px 0}.note{border-left:3px solid var(--accent);background:#0b1720;color:#bedcea}.warning{border-left:3px solid var(--warn);background:#18150d;color:#e7d29d}.lesson{border-left:3px solid var(--accent2);background:#0b1713;color:#c2e5d6}.danger{border-left:3px solid var(--danger);background:#1a1012;color:#e8c1c6;padding:14px 16px;border-radius:10px;margin:20px 0}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:12px}table{width:100%;border-collapse:collapse;min-width:650px;background:var(--panel)}th,td{text-align:left;padding:12px 13px;border-bottom:1px solid var(--line);vertical-align:top}th{background:#0d1217;color:#dce5ef}td{color:#b8c5d1}.checklist{list-style:none!important;padding:0!important}.checklist li:before{content:'✓';display:inline-block;width:22px;color:var(--accent2);font-weight:900}.steps{counter-reset:step;list-style:none!important;padding:0!important}.steps li{counter-increment:step;padding:0 0 21px 44px;position:relative}.steps li:before{content:counter(step);position:absolute;left:0;top:1px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:#0e141a;color:var(--accent);font-size:.78rem;font-weight:800}
.breadcrumb{font-size:.83rem;color:var(--muted);padding-top:20px}.breadcrumb a{color:#aab7c4}.related{margin-top:42px;border-top:1px solid var(--line);padding-top:27px}.sourcebox{margin-top:35px;padding:16px 18px;border:1px solid var(--line);border-radius:12px;background:#0c1117}.sourcebox h3{margin-top:0}.sourcebox li{font-size:.92rem}.ad-note{font-size:.76rem;color:#61707e;text-align:center;margin:12px 0}
.guide-toolbar{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:20px 0 28px}.search{flex:1;min-width:250px;background:#0c1117;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:11px 13px;font-size:1rem}.filter-btn{padding:8px 11px;border:1px solid var(--line);background:#0d1218;color:var(--muted);border-radius:999px;cursor:pointer}.filter-btn.active{color:#071018;background:var(--accent);border-color:var(--accent)}.hidden{display:none!important}
footer{border-top:1px solid var(--line);padding:30px 0 48px;color:var(--muted);font-size:.91rem}.badges{display:flex;gap:7px;flex-wrap:wrap}.badge{font-size:.74rem;padding:4px 7px;border:1px solid var(--line);border-radius:999px}.small{font-size:.88rem}.disclaimer{font-size:.81rem;color:#7f8c99}.muted{color:var(--muted)}
@media(max-width:930px){.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.nav{align-items:flex-start;flex-direction:column;padding:12px 0}.hero{padding-top:48px}}@media(max-width:620px){.grid-4,.grid-3,.grid-2{grid-template-columns:1fr}.hero h1{font-size:2.6rem}nav{gap:10px}.article{width:min(100% - 26px,var(--article))}}


/* Community */
.community-shell{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.community-list{display:grid;gap:16px}
.tip-card{background:linear-gradient(180deg,var(--panel),var(--panel2));border:1px solid var(--line);border-radius:16px;padding:20px}
.tip-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;flex-wrap:wrap}
.tip-title{font-size:1.18rem;margin:0 0 5px}.tip-meta{font-size:.78rem;color:var(--muted)}
.tip-block{margin-top:15px}.tip-block strong{display:block;font-size:.79rem;text-transform:uppercase;letter-spacing:.09em;color:var(--accent);margin-bottom:5px}
.community-status{padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:#0c1117;color:var(--muted)}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:.86rem;color:#d6e0e9;font-weight:700}
.field input,.field textarea,.field select{
  width:100%;background:#0b1117;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit
}
.field textarea{min-height:130px;resize:vertical}.field small{color:var(--muted)}
.form-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:16px}
.form-message{padding:12px 14px;border-radius:10px;display:none}.form-message.ok{display:block;background:#0b1813;border:1px solid #244f3d;color:#bce8d4}.form-message.err{display:block;background:#1a1012;border:1px solid #573037;color:#efc4ca}
.honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.rules-list li{margin:9px 0;color:#c4cfda}
.admin-toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.admin-toolbar input{flex:1;min-width:280px;background:#0b1117;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.moderation-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.btn.approve{border-color:#315e4c}.btn.reject{border-color:#693942}
.code-snippet{white-space:pre-wrap;word-break:break-word}
@media(max-width:900px){.community-shell{grid-template-columns:1fr}}@media(max-width:650px){.form-grid{grid-template-columns:1fr}}


/* v8 readability */
.quick-answer{margin:24px 0;padding:18px 20px;border:1px solid #2d4350;border-radius:14px;background:linear-gradient(180deg,#0c1820,#0c141b)}
.quick-answer h2{font-size:1.15rem!important;margin:0 0 8px!important;color:#dff5ff}.quick-answer p{margin:0;color:#c8d7e2}
.term-list{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.term{display:inline-block;padding:5px 8px;border:1px solid var(--line);border-radius:999px;background:#0a1117;color:#9fc9dc;font-size:.77rem}
.beginner-path{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:22px}.path-step{border:1px solid var(--line);border-radius:14px;padding:18px;background:linear-gradient(180deg,var(--panel),var(--panel2))}.path-step .num{display:grid;place-items:center;width:30px;height:30px;border:1px solid var(--line);border-radius:50%;color:var(--accent);font-weight:800;margin-bottom:10px}.path-step h3{margin:0 0 7px}.path-step p{margin:0;color:var(--muted)}
.callout-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:22px 0}.callout{border:1px solid var(--line);border-radius:13px;padding:17px;background:#0d1218}.callout h3{margin-top:0!important}.callout p:last-child{margin-bottom:0}
.definition{border-bottom:1px solid var(--line);padding:18px 0}.definition:last-child{border-bottom:0}.definition dt{font-weight:850;color:#e7f5ff;font-size:1.05rem}.definition dd{margin:5px 0 0;color:#c1ccd7}.definition .example{display:block;margin-top:6px;color:#93a6b8;font-size:.9rem}
.faq details{border:1px solid var(--line);border-radius:12px;background:#0d1218;padding:14px 16px;margin:10px 0}.faq summary{cursor:pointer;font-weight:800;color:#e5edf5}.faq details p{margin-bottom:0}
.read-next{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.mini-nav{padding:13px 15px;border:1px solid var(--line);border-radius:12px;background:#0d1218;color:#c8d5df}
.article p{max-width:78ch}.article h2{scroll-margin-top:90px}.article pre{margin:18px 0}.article .plain-note{font-size:.96rem}
.landing-copy{max-width:900px}.landing-copy p{color:#c2ced9}.landing-copy h2{margin-top:34px}.landing-copy ul li{margin:7px 0;color:#c2ced9}
.decision-table td:first-child{font-weight:800;color:#dce7f1}
.tip-card,.tip-head,.tip-head>div{min-width:0}.tip-title,.tip-card h2{overflow-wrap:anywhere;word-break:break-word;hyphens:auto;max-width:100%}.tip-block div{overflow-wrap:anywhere}.code-snippet{max-width:100%;overflow-wrap:anywhere}
.moderation-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}.moderation-tab{padding:9px 12px;border:1px solid var(--line);border-radius:999px;background:#0d1218;color:var(--muted);cursor:pointer;font-weight:700}.moderation-tab.active{background:var(--accent);border-color:var(--accent);color:#061018}.btn.unpublish{border-color:#6e5a2f}.btn.restore{border-color:#355d72}.btn.delete{border-color:#7b2e38;color:#ffd5da}.moderation-actions button{cursor:pointer}.admin-help{color:var(--muted);font-size:.88rem;margin-top:8px}.tip-status{font-size:.74rem;padding:4px 7px;border:1px solid var(--line);border-radius:999px;color:#b7c4d0}
.community-tools{display:flex;gap:10px;flex-wrap:wrap;margin:14px 0}.community-tools .search{min-width:220px}.community-tools select{background:#0c1117;color:var(--text);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
@media(max-width:930px){.beginner-path{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:620px){.beginner-path,.callout-grid{grid-template-columns:1fr}}


/* v9 hands-on evidence */
.evidence-intro{max-width:900px}.evidence-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:24px}.evidence-card{overflow:hidden;border:1px solid var(--line);border-radius:15px;background:linear-gradient(180deg,var(--panel),var(--panel2))}.evidence-card img{display:block;width:100%;height:260px;object-fit:cover;background:#080b0f;border-bottom:1px solid var(--line)}.evidence-card .evidence-copy{padding:18px}.evidence-card h3{margin:0 0 8px}.evidence-card p{margin:0;color:#b9c7d3}.evidence-card .kicker{margin-bottom:7px}.evidence-wide{grid-column:1/-1}.evidence-wide img{height:auto;max-height:520px;object-fit:contain}.proof-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:20px 0}.proof-item{padding:14px;border:1px solid var(--line);border-radius:12px;background:#0c1218}.proof-item strong{display:block;color:#e8f3fb;margin-bottom:4px}.proof-item span{color:var(--muted);font-size:.88rem}.editorial-disclosure{border-left:3px solid var(--accent);padding:14px 16px;background:#0b141a;border-radius:0 12px 12px 0;margin:20px 0}.editorial-disclosure p{margin:0;color:#c7d4de}.lab-caption{font-size:.82rem;color:#8fa2b2;margin-top:9px}.evidence-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.real-work-badge{display:inline-block;padding:6px 9px;border:1px solid #355d72;border-radius:999px;color:#a9d8ed;background:#0b1720;font-size:.78rem;font-weight:800}.lab-timeline{border-left:2px solid var(--line);margin:20px 0 0 8px;padding-left:20px}.lab-event{position:relative;margin:0 0 24px}.lab-event:before{content:"";position:absolute;left:-27px;top:5px;width:11px;height:11px;border-radius:50%;background:var(--accent)}.lab-event h3{margin:0 0 5px}.lab-event p{margin:0;color:#bac7d2}.image-note{font-size:.82rem;color:#8ea1b1}.hands-on-link{font-weight:800}
@media(max-width:850px){.evidence-grid{grid-template-columns:1fr}.evidence-wide{grid-column:auto}.proof-strip{grid-template-columns:repeat(2,minmax(0,1fr))}.evidence-card img{height:auto;max-height:420px;object-fit:contain}}@media(max-width:520px){.proof-strip{grid-template-columns:1fr}}


/* v11 visual reading layer */
.hero-layout{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(320px,.88fr);gap:34px;align-items:center}
.hero-copy{min-width:0}.hero-visual{margin:0;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#070a0e;box-shadow:0 18px 55px rgba(0,0,0,.26)}
.hero-visual img{display:block;width:100%;height:360px;object-fit:cover}.hero-visual.contain img{object-fit:contain;background:#080b0f}
.hero-visual figcaption{padding:10px 13px;color:#8fa2b2;font-size:.78rem;border-top:1px solid var(--line);background:#0c1117}
.visual-example{margin:26px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:linear-gradient(180deg,var(--panel),var(--panel2))}
.visual-example img{display:block;width:100%;max-height:520px;object-fit:contain;background:#080b0f}.visual-example figcaption{padding:11px 14px;color:#93a6b6;font-size:.82rem;border-top:1px solid var(--line)}
.practical-example{margin:24px 0;padding:18px 20px;border:1px solid #314552;border-radius:14px;background:linear-gradient(180deg,#0c171e,#0c1319)}
.practical-example .example-label{display:inline-block;margin-bottom:7px;color:var(--accent2);font-size:.74rem;font-weight:850;text-transform:uppercase;letter-spacing:.12em}
.practical-example h3{margin:0 0 8px!important;font-size:1.08rem!important}.practical-example p{margin:0;color:#c6d2dc}.practical-example code{font-size:.88em}
.story-section{padding:48px 0}.story-grid{display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:28px;align-items:center}.story-image{margin:0;border:1px solid var(--line);border-radius:18px;overflow:hidden;background:#080b0f}.story-image img{display:block;width:100%;height:auto}.story-image figcaption{padding:10px 13px;color:#8fa2b2;font-size:.78rem;border-top:1px solid var(--line)}
.lesson-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:19px}.lesson-card{padding:16px;border:1px solid var(--line);border-radius:13px;background:#0d1218}.lesson-card strong{display:block;color:#eaf4fb;margin-bottom:4px}.lesson-card span{color:var(--muted);font-size:.9rem}
.media-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:25px 0}.media-pair figure{margin:0;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#080b0f}.media-pair img{display:block;width:100%;height:260px;object-fit:contain}.media-pair figcaption{padding:10px 12px;color:#8fa2b2;font-size:.78rem;border-top:1px solid var(--line)}
@media(max-width:900px){.hero-layout,.story-grid{grid-template-columns:1fr}.hero-visual img{height:auto;max-height:520px;object-fit:contain}.lesson-cards{grid-template-columns:1fr}.media-pair{grid-template-columns:1fr}.media-pair img{height:auto;max-height:480px}}