/* The per-book revamp page: each chapter has one block per figure and per interactive, before beside after. */
:root{--bg:#FAFAF9;--fg:#1C1917;--fg2:#44403C;--mfg:#57534E;--faint:#78716C;--line:#E7E5E4;--line2:#D6D3D1;--muted:#F5F5F4;--coral:#DA7756;--act:#B8553A;--ctext:#A84C2E;--soft:#FBF0EC;--ok:#23774F;--okSoft:#EAF5EF;--bad:#B42323;--badSoft:#FCEEEE;--warn:#9C5506;--warnSoft:#FDF3E3;--ease:cubic-bezier(.22,1,.36,1)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 Inter,ui-sans-serif,system-ui,sans-serif;-webkit-font-smoothing:antialiased}
.rv{max-width:1520px;margin:0 auto;padding:0 32px 120px}
.rv h1{font-size:38px;font-weight:550;letter-spacing:-.022em;line-height:1.15;margin:0}
.rv h2{font-size:26px;font-weight:550;letter-spacing:-.018em;line-height:1.2;margin:0}
.rv h3{font-size:17px;font-weight:600;letter-spacing:-.008em;line-height:1.3;margin:0}
.rv p{margin:0}
.rv-hero{padding:42px 0 6px}
.rv-kick{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:550;color:var(--mfg);margin-bottom:12px}
.rv-kick i{width:8px;height:8px;border-radius:50%;background:var(--acc,#DA7756);display:inline-block}
.rv-lead{font-size:17px;color:var(--fg2);line-height:1.6;max-width:900px;margin-top:12px}
.rv-stats{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.rv-stat{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 16px}
.rv-stat b{display:block;font-size:22px;font-weight:600;font-variant-numeric:tabular-nums}
.rv-stat span{font-size:13.5px;color:var(--mfg)}
.rv-nav{position:sticky;top:0;z-index:50;background:rgba(250,250,249,.93);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line);margin:22px -32px 0;padding:0 32px}
.rv-nav .in{display:flex;gap:4px;overflow-x:auto;height:50px;align-items:center}
.rv-nav a{font-size:14px;font-weight:550;color:var(--fg2);text-decoration:none;padding:6px 11px;border-radius:999px;white-space:nowrap;display:inline-flex;gap:6px;align-items:center}
.rv-nav a:hover{background:var(--muted)}.rv-nav a.on{background:var(--fg);color:#fff}
.rv-nav a small{font-size:12px;font-weight:600;color:var(--faint)}
.rv-nav a.on small{color:#D6D3D1}
.rv-ch{padding:52px 0 8px;scroll-margin-top:56px}
.rv-chh{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin-bottom:6px}
.rv-chh .n{font-size:15px;font-weight:600;color:var(--faint)}
.rv-chh .cnt{margin-left:auto;font-size:14px;color:var(--mfg)}
.rv-sec{margin:30px 0 4px;font-size:14px;font-weight:650;color:var(--mfg)}
.rv-blk{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 24px 24px;margin-top:16px}
.rv-bh{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rv-bh h3{font-size:16.5px}
.chip{display:inline-flex;align-items:center;gap:6px;height:25px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--muted);color:var(--fg2);white-space:nowrap}
.chip.ok{background:var(--okSoft);color:var(--ok)}.chip.bad{background:var(--badSoft);color:var(--bad)}.chip.warn{background:var(--warnSoft);color:var(--warn)}.chip.acc{background:var(--soft);color:var(--ctext)}
.rv-note{margin-top:8px;font-size:15px;color:var(--fg2);max-width:1100px}
.rv-note b{color:var(--fg);font-weight:600}
.rv-cols{display:grid;grid-template-columns:repeat(2,minmax(0,680px));gap:28px;justify-content:space-between;margin-top:14px}
.rv-lab{font-size:12.5px;font-weight:650;color:var(--faint);margin-bottom:8px;letter-spacing:.01em}
.rv-before img{display:block;width:100%;height:auto;border:1px solid var(--line);border-radius:10px;background:#fff}
.rv-after .bf{margin:0}
.rv-pending{border:1.5px dashed var(--line2);border-radius:12px;min-height:160px;display:grid;place-items:center;text-align:center;color:var(--faint);font-size:14.5px;padding:20px}
.rv-guard{margin-top:10px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--mfg)}
.rv-empty{color:var(--faint);font-size:15px;margin-top:10px}
.lb{position:fixed;inset:0;background:rgba(28,25,23,.62);z-index:420;display:none;align-items:center;justify-content:center;padding:24px}
.lb.on{display:flex}
.lb .box{background:#fff;border-radius:16px;padding:28px;max-width:1100px;width:100%;max-height:92vh;overflow:auto}
.lb .x{float:right;height:34px;border-radius:9px;border:1px solid var(--line2);background:#fff;font:550 14px Inter,sans-serif;padding:0 14px;cursor:pointer}
/* the shared interactive shell */
.ix{margin:0;--acc:#DA7756;--deep:#B8553A;--ink:#A84C2E;--t1:#fdf3ef;--t2:#fbe6de;--t3:#f6d3c5;font-family:Inter,ui-sans-serif,system-ui,sans-serif}
.ix *{box-sizing:border-box}
.ix-h{display:flex;align-items:flex-start;gap:10px;margin:0 0 12px}
.ix-n{font-size:15.5px;font-weight:650;color:var(--ink);white-space:nowrap;line-height:1.4}
.ix-t{flex:1;font-size:15.5px;font-weight:600;line-height:1.4}
.ix-t em{font-style:normal;color:var(--ink);background:linear-gradient(transparent 62%,var(--t2) 62%)}
.ix-try{height:24px;padding:0 9px;border-radius:999px;background:#1C1917;color:#fff;font-size:12.5px;font-weight:600;display:inline-flex;align-items:center}
.ix-plate{border-radius:14px;padding:20px;border:1px solid #EEECE9;background:radial-gradient(110% 80% at 100% 0%,var(--t1) 0%,transparent 55%),#FBFAF9}
.ix-lead,.rv .ix-lead{font-size:14.5px;line-height:1.5;color:#44403C;margin:0 0 14px}
.ix-card{background:#fff;border:1px solid #E7E5E4;border-radius:12px;padding:12px;box-shadow:0 1px 2px rgba(20,24,35,.04),0 6px 18px rgba(20,24,35,.05)}
.ix-btn{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 14px;border-radius:9px;border:1px solid #D6D3D1;background:#fff;color:#1C1917;font:550 14px Inter,sans-serif;cursor:pointer}
.ix-btn:hover{background:#F5F5F4}
.ix-btn.pri{background:var(--deep);border-color:var(--deep);color:#fff}
.ix-seg{display:inline-flex;background:#F5F5F4;border-radius:9px;padding:2px;gap:2px}
.ix-seg button{border:0;background:none;height:28px;padding:0 10px;border-radius:7px;font:600 13px Inter,sans-serif;color:#57534E;cursor:pointer}
.ix-seg button.on{background:#fff;color:#1C1917;box-shadow:0 1px 2px rgba(0,0,0,.1)}
.ix-seg button.on.a{background:var(--deep);color:#fff}
.ix-pill{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 11px;border-radius:999px;font-size:13.5px;font-weight:600;background:#fff;border:1px solid #E7E5E4}
.ix-note{margin-top:14px;background:#fff;border:1px solid #E7E5E4;border-left:4px solid var(--acc);border-radius:10px;padding:12px 15px;font-size:14.5px;line-height:1.55;color:#1C1917}
.ix-note b{display:block;font-size:13px;color:var(--ink);margin-bottom:3px}
.ix input[type=range]{width:100%;accent-color:var(--deep)}
/* the annotation kit */
.kit{position:fixed;right:16px;bottom:16px;z-index:300;display:flex;gap:6px;background:#1C1917;padding:6px;border-radius:14px;box-shadow:0 10px 30px rgba(0,0,0,.25);flex-wrap:wrap;justify-content:flex-end;max-width:calc(100vw - 32px)}
.kit button{background:#292524;color:#fff;border:0;border-radius:10px;height:38px;padding:0 13px;font:600 14px/1 Inter,sans-serif;cursor:pointer}
.kit button.on{background:var(--coral);color:#1C1917}
.kit .copy{background:#fff;color:#1C1917}
body.kit-pin,body.kit-pin *{cursor:crosshair!important}
.pinlayer{position:absolute;left:0;top:0;width:100%;height:0;z-index:250}
.pin{position:absolute;transform:translate(-14px,-14px);width:28px;height:28px;border-radius:50%;background:var(--coral);color:#1C1917;font:700 13px/28px Inter,sans-serif;text-align:center;box-shadow:0 0 0 3px #fff,0 4px 12px rgba(0,0,0,.25);cursor:pointer}
.pin .note{position:absolute;left:34px;top:-6px;width:290px;background:#fff;border:1px solid var(--line2);border-radius:10px;padding:8px;box-shadow:0 8px 24px rgba(0,0,0,.15);display:none;text-align:left}
.pin.open .note{display:block}
.pin textarea{width:100%;min-height:70px;font:400 14px/1.4 Inter,sans-serif;border:1px solid var(--line);border-radius:6px;padding:6px;resize:vertical}
.pin .del{margin-top:6px;font:600 13px Inter,sans-serif;background:none;border:0;color:#B42323;cursor:pointer;padding:0}
#drawcv{position:absolute;left:0;top:0;z-index:240;pointer-events:none}
body.kit-draw #drawcv{pointer-events:auto;cursor:crosshair}
body.kit-edit [data-edit]{outline:2px dashed var(--coral);outline-offset:3px;border-radius:4px}
.b-modal{position:fixed;inset:0;background:rgba(28,25,23,.6);z-index:400;display:none;align-items:center;justify-content:center;padding:16px}
.b-modal.on{display:flex}
.b-modal .box{background:#fff;border-radius:16px;padding:20px;max-width:720px;width:100%}
.b-modal textarea{width:100%;height:320px;font:400 14px/1.5 ui-monospace,Consolas,monospace;border:1px solid var(--line);border-radius:10px;padding:10px}
.b-modal .row{display:flex;justify-content:space-between;align-items:center;margin-top:10px;gap:10px;font-size:14px;color:var(--faint)}
.b-modal button{height:38px;border-radius:10px;border:1px solid var(--line2);background:#fff;font:600 14px Inter,sans-serif;padding:0 16px;cursor:pointer}
@media (max-width:1180px){.rv-cols{grid-template-columns:minmax(0,1fr)}}
@media (max-width:640px){.rv{padding:0 16px 120px}.rv-nav{margin:22px -16px 0;padding:0 16px}.rv h1{font-size:28px}.rv-blk{padding:16px}.kit button{height:34px;padding:0 10px;font-size:13px}}