@import url("notes.css");
:root{
  --bg:#f6f7f9; --surface:#ffffff; --surface-2:#f0f2f5; --border:#e6e8ec; --border-strong:#d4d8de;
  --text:#12151b; --muted:#5b636e; --primary:#4f46e5; --primary-2:#7c3aed; --primary-soft:#eef0fe;
  --green:#15a34a; --amber:#d97706; --red:#dc2626; --code-bg:#f6f8fa; --code-text:#1f2430;
}
:root[data-theme="dark"]{
  --bg:#0c0e13; --surface:#12151c; --surface-2:#171b23; --border:#242a33; --border-strong:#333b46;
  --text:#e7eaf0; --muted:#98a2b0; --primary:#8b87f5; --primary-2:#a78bfa; --primary-soft:#1b1a33;
  --green:#34d399; --amber:#fbbf24; --red:#f87171; --code-bg:#0f1218; --code-text:#d7dce6;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh;display:flex;flex-direction:column;}
body>main{flex:1 0 auto;}
a{color:inherit;}
::selection{background:var(--primary-soft);color:var(--primary-2);}
::-webkit-scrollbar{width:11px;height:11px;}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:9px;border:3px solid var(--bg);}
@keyframes fadeUp{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:none;}}
@keyframes flow{0%,100%{opacity:.3;}50%{opacity:1;}}

/* ---- header ---- */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in oklab,var(--surface) 82%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);}
.progress-rail{height:3px;background:var(--surface-2);}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-2));width:0%;transition:width .4s ease;}
.header-inner{max-width:1280px;margin:0 auto;padding:0 1.5rem;height:62px;display:flex;align-items:center;gap:1.5rem;}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;}
.brand-mark{width:30px;height:30px;border-radius:8px;background:#fff;display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.brand-mark img{display:block;}
.brand-name{font-family:'Sora',sans-serif;font-weight:800;font-size:1.05rem;letter-spacing:-.02em;color:var(--text);}
.brand-name em{color:var(--primary);font-style:normal;}
.site-nav{display:flex;gap:.3rem;margin-left:.5rem;}
.site-nav a{cursor:pointer;font-size:.9rem;font-weight:500;color:var(--muted);padding:.4rem .7rem;border-radius:8px;text-decoration:none;}
.site-nav a.accent{font-weight:600;color:var(--primary);}
.header-spacer{flex:1;}
.search-btn{display:flex;align-items:center;gap:.6rem;background:var(--surface-2);border:1px solid var(--border);border-radius:9px;padding:.42rem .7rem;cursor:pointer;color:var(--muted);font-family:inherit;font-size:.85rem;}
.search-btn kbd{border:1px solid var(--border-strong);border-radius:5px;padding:.05rem .35rem;font-size:.7rem;font-weight:600;}
.theme-btn{width:38px;height:38px;border-radius:9px;background:var(--surface-2);border:1px solid var(--border);cursor:pointer;color:var(--text);font-size:1rem;display:flex;align-items:center;justify-content:center;}

/* ---- home hero ---- */
.hero{max-width:1280px;margin:0 auto;padding:4rem 1.5rem 3rem;display:grid;grid-template-columns:1.05fr .95fr;gap:3rem;align-items:center;}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:var(--primary-soft);color:var(--primary-2);padding:.35rem .8rem;border-radius:9999px;font-size:.8rem;font-weight:600;margin-bottom:1.4rem;}
.hero-badge span{width:7px;height:7px;border-radius:50%;background:var(--primary);}
.hero h1{font-family:'Sora',sans-serif;font-size:3.1rem;line-height:1.05;font-weight:800;letter-spacing:-.03em;margin:0 0 1.1rem;}
.hero h1 .grad{background:linear-gradient(120deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero p{font-size:1.18rem;line-height:1.6;color:var(--muted);margin:0 0 2rem;max-width:34rem;}
.hero-ctas{display:flex;gap:.8rem;flex-wrap:wrap;}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;border:none;padding:.85rem 1.5rem;border-radius:11px;font-family:inherit;font-size:.98rem;font-weight:700;cursor:pointer;box-shadow:0 6px 20px color-mix(in oklab,var(--primary) 35%,transparent);text-decoration:none;display:inline-block;}
.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border-strong);padding:.85rem 1.5rem;border-radius:11px;font-size:.98rem;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;}
.hero-stats{display:flex;gap:2.4rem;margin-top:2.6rem;}
.hero-stats .num{font-family:'Sora',sans-serif;font-size:1.7rem;font-weight:800;}
.hero-stats .lbl{font-size:.82rem;color:var(--muted);font-weight:500;}
.hero-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:1.6rem;box-shadow:0 12px 40px rgba(0,0,0,.06);}
.hero-card-title{font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:1.1rem;}
.pipe-row{display:flex;align-items:center;gap:.7rem;padding:.75rem .9rem;background:var(--surface-2);border-radius:11px;border:1px solid var(--border);}
.pipe-row.accent{background:linear-gradient(135deg,var(--primary-soft),transparent);border:1px solid color-mix(in oklab,var(--primary) 30%,var(--border));}
.pipe-row .ico{font-size:1.1rem;}
.pipe-row .t{font-weight:700;font-size:.9rem;}
.pipe-row .d{font-size:.76rem;color:var(--muted);}
.pipe-arrow{text-align:center;color:var(--primary);font-size:.9rem;animation:flow 2s infinite;margin:.5rem 0;}
.pipe-backends{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.45rem;margin-top:.5rem;}
.pipe-backends div{padding:.55rem;background:var(--surface-2);border-radius:9px;border:1px solid var(--border);text-align:center;font-size:.74rem;font-weight:600;}

/* ---- chapters/guides ---- */
.chapters{max-width:1280px;margin:0 auto;padding:1.5rem 1.5rem 5rem;}
.chapter{margin-bottom:3rem;}
.chapter-head{display:flex;align-items:baseline;gap:.9rem;margin-bottom:1.3rem;padding-bottom:.7rem;border-bottom:1px solid var(--border);}
.chapter-head .num{font-family:'Sora',sans-serif;font-size:.9rem;font-weight:800;color:var(--primary);}
.chapter-head h2{font-family:'Sora',sans-serif;font-size:1.4rem;font-weight:700;margin:0;letter-spacing:-.01em;}
.chapter-head .sub{font-size:.88rem;color:var(--muted);}
.guide-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1rem;}
.guide-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.3rem;cursor:pointer;transition:.18s;overflow:hidden;text-decoration:none;color:inherit;display:block;}
.guide-card:hover{border-color:var(--primary);transform:translateY(-3px);box-shadow:0 10px 30px rgba(0,0,0,.08);}
.guide-card-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:.75rem;}
.guide-card-top .idx{font-family:'Sora',sans-serif;font-size:1.5rem;font-weight:800;color:var(--border-strong);}
.guide-card-top .done{display:flex;align-items:center;gap:.3rem;font-size:.72rem;font-weight:700;color:var(--green);}
.guide-card h3{font-family:'Sora',sans-serif;font-size:1.08rem;font-weight:700;margin:0 0 .45rem;line-height:1.3;}
.guide-card p{font-size:.86rem;color:var(--muted);line-height:1.55;margin:0 0 1rem;}
.guide-meta{display:flex;align-items:center;gap:.6rem;font-size:.76rem;color:var(--muted);}
.diff-dot{display:inline-flex;align-items:center;gap:.35rem;font-weight:600;}
.diff-dot span{width:7px;height:7px;border-radius:50%;}
.diff-beginner{color:var(--green);} .diff-beginner span{background:var(--green);}
.diff-intermediate{color:var(--amber);} .diff-intermediate span{background:var(--amber);}
.diff-advanced{color:var(--red);} .diff-advanced span{background:var(--red);}

/* ---- guide page ---- */
.guide-layout{max-width:1280px;margin:0 auto;padding:2.2rem 1.5rem 4rem;display:grid;grid-template-columns:250px 1fr;gap:3rem;align-items:start;}
.guide-sidebar{position:sticky;top:82px;}
.back-link{display:inline-flex;align-items:center;gap:.4rem;font-size:.85rem;color:var(--muted);cursor:pointer;margin-bottom:1.4rem;font-weight:500;text-decoration:none;}
.side-box{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.1rem 1.2rem;margin-bottom:1rem;}
.side-box-title{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.8rem;}
.toc-link{display:block;font-size:.87rem;color:var(--muted);cursor:pointer;padding:.32rem .5rem;border-radius:7px;line-height:1.35;text-decoration:none;}
.toc-link:hover{color:var(--primary);background:var(--surface-2);}
.guide-info-list{display:flex;flex-direction:column;gap:.55rem;font-size:.85rem;color:var(--muted);}
.guide-info-list span{display:inline-flex;align-items:center;gap:.45rem;}
.guide-info-list .dot{width:8px;height:8px;border-radius:50%;display:inline-block;}
article.guide-article{min-width:0;max-width:44rem;}
.guide-crumb{font-size:.82rem;color:var(--muted);margin-bottom:.8rem;font-weight:500;}
.guide-article h1{font-family:'Sora',sans-serif;font-size:2.3rem;font-weight:800;letter-spacing:-.02em;line-height:1.12;margin:0 0 1rem;}
.guide-meta-row{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap;margin-bottom:2rem;padding-bottom:1.6rem;border-bottom:1px solid var(--border);}
.pill{display:inline-flex;align-items:center;gap:.4rem;font-size:.8rem;font-weight:600;background:var(--surface-2);border:1px solid var(--border);padding:.3rem .7rem;border-radius:9999px;}
.pill.muted{color:var(--muted);font-weight:500;}
.pill span.dot{width:7px;height:7px;border-radius:50%;display:inline-block;}
.complete-btn{display:inline-flex;align-items:center;gap:.45rem;background:var(--surface);color:var(--text);border:1px solid var(--border-strong);padding:.5rem 1rem;border-radius:10px;font-family:inherit;font-weight:700;font-size:.85rem;cursor:pointer;transition:.15s;white-space:nowrap;margin-left:auto;}
.complete-btn.done{background:color-mix(in oklab,var(--green) 15%,transparent);color:var(--green);border-color:color-mix(in oklab,var(--green) 40%,var(--border));}

/* ---- article body (shared, from design) ---- */
.article-body{font-size:1.02rem;line-height:1.75;color:var(--text);}
.article-body h2{font-family:'Sora',sans-serif;font-size:1.5rem;font-weight:700;margin:2.6rem 0 .9rem;letter-spacing:-.01em;scroll-margin-top:90px;}
.article-body h2:first-child{margin-top:0;}
.article-body h3{font-family:'Sora',sans-serif;font-size:1.15rem;font-weight:600;margin:1.8rem 0 .6rem;}
.article-body p{margin:0 0 1.05rem;color:var(--text);}
.article-body a{color:var(--primary);text-decoration:none;border-bottom:1px solid color-mix(in oklab,var(--primary) 35%,transparent);}
.article-body ul,.article-body ol{margin:0 0 1.15rem;padding-left:1.3rem;}
.article-body li{margin:.4rem 0;}
.article-body strong{font-weight:700;color:var(--text);}
.article-body code{font-family:'JetBrains Mono',monospace;font-size:.86em;background:var(--surface-2);padding:.15em .4em;border-radius:5px;color:var(--primary-2);}
.article-body .lead{font-size:1.16rem;line-height:1.65;color:var(--muted);margin-bottom:1.6rem;}
.callout{display:flex;gap:.85rem;padding:1.05rem 1.15rem;border-radius:12px;margin:1.5rem 0;background:var(--surface-2);border:1px solid var(--border);}
.callout .callout-icon{font-size:1.1rem;line-height:1.5;flex-shrink:0;}
.callout .callout-body{font-size:.95rem;}
.callout .callout-body strong{display:block;margin-bottom:.2rem;}
.callout .callout-body p{margin:0;color:var(--muted);}
.callout.note{border-left:3px solid var(--primary);}
.callout.tip{border-left:3px solid var(--green);}
.callout.warn{border-left:3px solid var(--amber);}
.callout.danger{border-left:3px solid var(--red);}
.code-block{position:relative;margin:1.5rem 0;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:var(--code-bg);}
.code-block pre{margin:0;padding:1.1rem 1.15rem;overflow-x:auto;}
.code-block code{font-family:'JetBrains Mono',monospace;font-size:.83rem;line-height:1.7;background:none;padding:0;color:var(--code-text);white-space:pre;}
.copy-btn{position:absolute;top:.6rem;right:.6rem;background:var(--surface);color:var(--muted);border:1px solid var(--border);border-radius:7px;padding:.28rem .6rem;font-size:.72rem;font-family:inherit;font-weight:600;cursor:pointer;opacity:.85;transition:.15s;}
.copy-btn:hover{color:var(--primary);border-color:var(--primary);opacity:1;}
.table-wrap{overflow-x:auto;margin:1.5rem 0;border:1px solid var(--border);border-radius:12px;}
.article-body table{border-collapse:collapse;width:100%;font-size:.92rem;}
.article-body th{text-align:left;padding:.7rem .9rem;background:var(--surface-2);font-weight:600;border-bottom:1px solid var(--border);}
.article-body td{padding:.7rem .9rem;border-bottom:1px solid var(--border);color:var(--muted);vertical-align:top;}
.article-body tr:last-child td{border-bottom:none;}
.article-body td strong{color:var(--text);}
.playground-cta{margin-top:1.8rem;padding:1.3rem 1.4rem;border-radius:14px;background:linear-gradient(120deg,color-mix(in oklab,var(--primary) 12%,transparent),transparent);border:1px solid color-mix(in oklab,var(--primary) 30%,var(--border));}
.playground-cta strong{display:block;font-size:1.05rem;margin-bottom:.3rem;}
.playground-cta p{margin:0 0 .9rem;color:var(--muted);font-size:.92rem;}
.playground-cta a.btn-primary{padding:.6rem 1.1rem;font-size:.88rem;}

/* ---- quiz ---- */
.quiz-section{margin-top:3.2rem;padding-top:2.2rem;border-top:1px solid var(--border);}
.quiz-head{display:flex;align-items:center;gap:.7rem;margin-bottom:1.4rem;}
.quiz-head h2{font-family:'Sora',sans-serif;font-size:1.35rem;font-weight:700;margin:0;}
.quiz-score{font-size:.85rem;font-weight:700;background:var(--primary-soft);color:var(--primary-2);padding:.35rem .8rem;border-radius:9999px;margin-left:auto;display:none;}
.quiz-card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.2rem 1.3rem;margin-bottom:1.1rem;}
.quiz-q{font-weight:700;font-size:1rem;margin-bottom:.9rem;line-height:1.4;}
.quiz-options{display:flex;flex-direction:column;gap:.5rem;}
.quiz-opt{display:flex;align-items:center;gap:.7rem;text-align:left;padding:.7rem .85rem;border-radius:10px;font-family:inherit;font-size:.92rem;cursor:pointer;transition:.12s;background:var(--surface);border:1px solid var(--border);color:var(--text);width:100%;}
.quiz-opt .lbl{flex:1;}
.quiz-opt .mark{font-weight:800;}
.quiz-opt.correct{background:color-mix(in oklab,var(--green) 14%,transparent);border-color:color-mix(in oklab,var(--green) 45%,var(--border));}
.quiz-opt.wrong{background:color-mix(in oklab,var(--red) 12%,transparent);border-color:color-mix(in oklab,var(--red) 45%,var(--border));}
.quiz-opt.dim{color:var(--muted);}
.quiz-opt.answered{cursor:default;}
.quiz-explain{margin-top:.85rem;padding:.7rem .9rem;background:var(--surface-2);border-radius:9px;font-size:.87rem;line-height:1.55;color:var(--muted);border-left:3px solid var(--muted);}
.quiz-explain.ok{border-left-color:var(--green);}
.quiz-explain.bad{border-left-color:var(--red);}

.guide-nav{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-top:3rem;}
.guide-nav a{background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:1.1rem 1.3rem;cursor:pointer;transition:.15s;text-decoration:none;color:inherit;display:block;}
.guide-nav a:hover{border-color:var(--primary);}
.guide-nav .next{text-align:right;}
.guide-nav .lbl{font-size:.75rem;color:var(--muted);font-weight:600;margin-bottom:.3rem;}
.guide-nav .title{font-family:'Sora',sans-serif;font-weight:700;font-size:.98rem;}

/* ---- search overlay ---- */
.search-overlay{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.4);backdrop-filter:blur(3px);display:none;align-items:flex-start;justify-content:center;padding-top:12vh;}
.search-overlay.open{display:flex;}
.search-modal{width:min(620px,92vw);background:var(--surface);border:1px solid var(--border);border-radius:16px;box-shadow:0 24px 70px rgba(0,0,0,.3);overflow:hidden;animation:fadeUp .2s ease;}
.search-modal-head{display:flex;align-items:center;gap:.7rem;padding:1rem 1.2rem;border-bottom:1px solid var(--border);}
.search-modal-head input{flex:1;background:none;border:none;outline:none;font-family:inherit;font-size:1.02rem;color:var(--text);}
.search-results{max-height:52vh;overflow-y:auto;padding:.5rem;}
.search-result{display:flex;align-items:center;gap:.9rem;padding:.75rem .9rem;border-radius:10px;cursor:pointer;text-decoration:none;color:inherit;}
.search-result:hover{background:var(--surface-2);}
.search-result .idx{font-family:'Sora',sans-serif;font-weight:800;color:var(--border-strong);font-size:1rem;}
.search-result .body{flex:1;min-width:0;}
.search-result .t{font-weight:700;font-size:.92rem;}
.search-result .s{font-size:.8rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.search-empty{padding:2rem;text-align:center;color:var(--muted);font-size:.9rem;}

/* ---- playground ---- */
.pg-header{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:1rem;margin-bottom:.5rem;}
.pg-badge{display:inline-flex;align-items:center;gap:.5rem;background:var(--primary-soft);color:var(--primary-2);padding:.3rem .75rem;border-radius:9999px;font-size:.78rem;font-weight:700;margin-bottom:.7rem;}
.pg-header h1{font-family:'Sora',sans-serif;font-size:2.1rem;font-weight:800;letter-spacing:-.02em;margin:0;}
.pg-header p{color:var(--muted);margin:.5rem 0 0;font-size:.98rem;max-width:40rem;}
.reset-btn{background:var(--surface);border:1px solid var(--border-strong);color:var(--text);padding:.55rem 1rem;border-radius:10px;font-family:inherit;font-weight:600;font-size:.85rem;cursor:pointer;white-space:nowrap;}
.signal-row{display:flex;align-items:center;gap:.6rem;margin:1.6rem 0;}
.signal-row .lbl{font-size:.82rem;color:var(--muted);font-weight:600;}
.signal-btn{border:1px solid var(--border);padding:.35rem .9rem;border-radius:9999px;font-family:inherit;font-weight:600;font-size:.85rem;cursor:pointer;text-transform:capitalize;background:var(--surface);color:var(--muted);}
.signal-btn.active{background:var(--primary);color:#fff;border-color:var(--primary);}
.pg-grid{display:grid;grid-template-columns:340px 1fr;gap:1.5rem;align-items:start;}
.pg-palette-box{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.1rem 1.2rem;margin-bottom:1rem;}
.pg-palette-title{font-size:.72rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:.8rem;}
.pg-palette-title small{opacity:.6;text-transform:none;letter-spacing:0;}
.pg-chip{display:flex;align-items:center;gap:.6rem;text-align:left;padding:.5rem .7rem;border-radius:9px;font-family:inherit;width:100%;transition:.12s;background:var(--surface);border:1px solid var(--border);cursor:pointer;margin-bottom:.45rem;}
.pg-chip.added{background:var(--surface-2);border:1px dashed var(--border-strong);opacity:.65;cursor:default;}
.pg-chip .mark{width:20px;height:20px;border-radius:6px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;flex-shrink:0;}
.pg-chip .body{flex:1;min-width:0;}
.pg-chip .lbl{display:block;font-family:'JetBrains Mono',monospace;font-size:.82rem;font-weight:500;color:var(--text);}
.pg-chip .desc{display:block;font-size:.72rem;color:var(--muted);}
.pg-canvas{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:1.4rem;margin-bottom:1.3rem;}
.pg-lanes{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:.8rem;align-items:stretch;}
.pg-lane-title{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.55rem;text-align:center;}
.pg-lane-arrow{display:flex;align-items:center;color:var(--primary);font-weight:700;}
.pg-node{position:relative;background:var(--surface-2);border:1px solid var(--border-strong);border-radius:9px;padding:.5rem .55rem;margin-bottom:.4rem;display:flex;align-items:center;gap:.35rem;}
.pg-node .lbl{flex:1;min-width:0;font-family:'JetBrains Mono',monospace;font-size:.78rem;font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pg-node .act{cursor:pointer;color:var(--muted);font-size:.8rem;padding:0 .12rem;background:none;border:none;font-family:inherit;}
.pg-node .rm{cursor:pointer;color:var(--muted);font-weight:800;font-size:.9rem;padding:0 .15rem;background:none;border:none;font-family:inherit;}
.pg-empty{border:1.5px dashed var(--border-strong);border-radius:9px;padding:.9rem;text-align:center;font-size:.75rem;color:var(--muted);}
.pg-issue{display:flex;align-items:flex-start;gap:.6rem;padding:.7rem .9rem;background:var(--surface);border:1px solid var(--border);border-radius:10px;font-size:.87rem;line-height:1.5;margin-bottom:.55rem;}
.pg-issue.danger{border-left:3px solid var(--red);}
.pg-issue.warn{border-left:3px solid var(--amber);}
.pg-issue.ok{border-left:3px solid var(--green);}
.pg-issue.tip{border-left:3px solid var(--muted);}
.pg-yaml-box{background:var(--code-bg);border:1px solid var(--border);border-radius:14px;overflow:hidden;}
.pg-yaml-head{display:flex;align-items:center;justify-content:space-between;padding:.7rem 1rem;border-bottom:1px solid var(--border);}
.pg-yaml-head .fn{font-family:'JetBrains Mono',monospace;font-size:.78rem;color:var(--muted);font-weight:500;}
.pg-yaml-head .live{font-size:.72rem;color:var(--muted);}
.pg-yaml-box .code-block{margin:0;border:none;border-radius:0;}
.pg-yaml-box pre{max-height:460px;}

/* ---- footer ---- */
.site-footer{border-top:1px solid var(--border);background:var(--surface);}
.footer-inner{max-width:1280px;margin:0 auto;padding:3rem 1.5rem;display:grid;grid-template-columns:1.3fr 1fr;gap:3rem;align-items:center;}
.footer-inner h3{font-family:'Sora',sans-serif;font-size:1.4rem;font-weight:700;margin:0 0 .5rem;}
.footer-inner p{color:var(--muted);margin:0 0 1.2rem;font-size:.95rem;}
.subscribe-row{display:flex;gap:.6rem;max-width:26rem;}
.subscribe-row input{flex:1;background:var(--bg);border:1px solid var(--border-strong);border-radius:10px;padding:.7rem .9rem;font-family:inherit;font-size:.9rem;color:var(--text);}
.subscribe-row button{background:var(--primary);color:#fff;border:none;border-radius:10px;padding:.7rem 1.2rem;font-family:inherit;font-weight:700;font-size:.9rem;cursor:pointer;}
.footer-meta{text-align:right;font-size:.85rem;color:var(--muted);}
.footer-meta .brand{font-family:'Sora',sans-serif;font-weight:800;font-size:1rem;color:var(--text);margin-bottom:.5rem;justify-content:flex-end;}
.footer-meta a{color:var(--primary);text-decoration:none;}

@media (max-width:900px){
  .hero{grid-template-columns:1fr;padding-top:2.5rem;}
  .guide-layout{grid-template-columns:1fr;}
  .guide-sidebar{position:static;}
  .pg-grid{grid-template-columns:1fr;}
  .pg-lanes{grid-template-columns:1fr;}
  .pg-lane-arrow{display:none;}
  .footer-inner{grid-template-columns:1fr;text-align:left;}
  .footer-meta{text-align:left;}
  .footer-meta .brand{justify-content:flex-start;}
}
#cookie-banner{display:none;position:fixed;left:1.2rem;right:1.2rem;bottom:1.2rem;z-index:200;align-items:center;gap:1rem;flex-wrap:wrap;max-width:640px;margin:0 auto;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1rem 1.2rem;box-shadow:0 12px 40px rgba(0,0,0,.14);}
.cookie-text{flex:1 1 260px;font-size:.88rem;line-height:1.5;color:var(--muted);}
.cookie-buttons{display:flex;gap:.6rem;flex-shrink:0;}
#cookie-accept,#cookie-decline{font-family:inherit;font-size:.85rem;font-weight:600;padding:.5rem 1rem;border-radius:9px;cursor:pointer;transition:.15s;}
#cookie-accept{background:var(--primary);color:#fff;border:1px solid var(--primary);}
#cookie-accept:hover{background:var(--primary-2);border-color:var(--primary-2);}
#cookie-decline{background:var(--surface);color:var(--text);border:1px solid var(--border-strong);}
#cookie-decline:hover{background:var(--surface-2);}
@media (max-width:520px){
  #cookie-banner{flex-direction:column;align-items:stretch;left:.7rem;right:.7rem;bottom:.7rem;}
  .cookie-buttons{justify-content:flex-end;}
}