/* Product design 2026-09-12 · BookScope · real application, unchanged data contracts. */
html[data-product-design="2026"] {
 --product-accent:#176557;--product-accent-dark:#82c9ae;
 --product-canvas:#f5f4ef;--product-surface:#fffefb;--product-soft:#eaf0e7;
 --product-ink:#172820;--product-muted:#53665b;--product-line:#d4ddd0;
 --serif:Georgia,'Iowan Old Style',serif!important;
 --sans:Inter,system-ui,-apple-system,'Segoe UI',sans-serif!important;
 --font-display:Georgia,'Iowan Old Style',serif!important;
 --font-body:Inter,system-ui,-apple-system,'Segoe UI',sans-serif!important;
 --r:8px!important;--r-sm:6px!important;--r-lg:12px!important;
}
html[data-product-design="2026"][data-theme="dark"],html[data-product-design="2026"].dark,html[data-product-design="2026"]:has(body.dark),html[data-product-design="2026"]:has(body[data-theme="dark"]){
 --product-accent:var(--product-accent-dark);--product-canvas:#14231d;--product-surface:#1c3027;
 --product-soft:#263e32;--product-ink:#f0f4eb;--product-muted:#b8caba;--product-line:#3c5646;
}
html[data-product-design="2026"]{
 --bg:var(--product-canvas)!important;--bg-2:var(--product-surface)!important;--bg2:var(--product-surface)!important;
 --bg-3:var(--product-soft)!important;--bg3:var(--product-soft)!important;--bg-soft:var(--product-soft)!important;
 --surface:var(--product-surface)!important;--surface-2:var(--product-soft)!important;--surface2:var(--product-soft)!important;
 --panel:var(--product-surface)!important;--panel2:var(--product-soft)!important;--card:var(--product-surface)!important;
 --card-bg:var(--product-surface)!important;--soft:var(--product-soft)!important;--chip:var(--product-soft)!important;
 --ink:var(--product-ink)!important;--ink-2:var(--product-muted)!important;--ink2:var(--product-muted)!important;
 --ink-3:var(--product-muted)!important;--ink3:var(--product-muted)!important;--ink-mute:var(--product-muted)!important;
 --text:var(--product-ink)!important;--text-primary:var(--product-ink)!important;--text-secondary:var(--product-muted)!important;
 --muted:var(--product-muted)!important;--line:var(--product-line)!important;--border:var(--product-line)!important;
 --line-2:var(--product-line)!important;--line2:var(--product-line)!important;--border-strong:var(--product-line)!important;
 --accent:var(--product-accent)!important;--acc:var(--product-accent)!important;--primary:var(--product-accent)!important;
 --accent-2:var(--product-accent)!important;--accent2:var(--product-accent)!important;--acc2:var(--product-accent)!important;
 --accent-soft:var(--product-soft)!important;--accent-bg:var(--product-soft)!important;
 --fire1:var(--product-accent)!important;--fire2:var(--product-accent)!important;--fire3:var(--product-accent)!important;
 --warm-a:var(--product-accent)!important;--warm-b:var(--product-accent)!important;--warm-c:var(--product-accent)!important;
 --grad:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --gradient:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-soft:linear-gradient(var(--product-soft),var(--product-soft))!important;
 --bar-bg:var(--product-surface)!important;--elev:var(--product-surface)!important;
 --shadow:0 2px 12px #1025180a!important;--shadow-sm:0 1px 3px #1025180a!important;
 --shadow-lift:0 6px 20px #10251814!important;--glow:none!important;
}
html[data-product-design="2026"] body{background:var(--product-canvas)!important;color:var(--product-ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;}
html[data-product-design="2026"] body::before,html[data-product-design="2026"] body::after{background-image:none!important;}
html[data-product-design="2026"] :is(#syed-ambient,.ambient,.hero-thread,.atmosphere,.grain){display:none!important;}
html[data-product-design="2026"] :is(h1,.hero-title,.display-title){font-family:var(--serif)!important;font-weight:400!important;letter-spacing:-.04em!important;line-height:1.1!important;text-wrap:balance;}
html[data-product-design="2026"] :is(h1,.hero-title) :is(.g,.grad-text,.gradient-text,.accent,.display-accent){background-image:none!important;color:var(--product-accent)!important;-webkit-text-fill-color:var(--product-accent)!important;}
html[data-product-design="2026"] :is(.hero-title,.hero h1){font-size:clamp(36px,5vw,68px)!important;max-width:23ch;}
html[data-product-design="2026"] :is(.hero-sub,.hero p,.lede){line-height:1.65;}
html[data-product-design="2026"] :is(.hero-kicker,.eyebrow,.kicker){letter-spacing:.13em;font-size:11px;}
html[data-product-design="2026"] :is(.card,.panel,.tile,.hardcard,.project-card){border-color:var(--product-line);border-radius:8px;box-shadow:0 1px 5px #10251808;}
html[data-product-design="2026"] :is(.btn-primary,.btn-fill,.primary,.button:not(.secondary),.hardbtn.bg-red-500){background:var(--product-accent)!important;color:var(--product-surface)!important;box-shadow:none!important;border-color:var(--product-accent)!important;border-radius:6px;}
html[data-product-design="2026"] :is(.btn-primary,.btn-fill,.primary,.button:not(.secondary))::before,html[data-product-design="2026"] :is(.btn-primary,.btn-fill,.primary,.button:not(.secondary))::after{background-image:none!important;}
html[data-product-design="2026"] :is(input,textarea,select):not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]){border-radius:6px;}
html[data-product-design="2026"] :where(a,button,input,textarea,select,summary,[role=button]):focus-visible{outline:3px solid var(--product-accent)!important;outline-offset:3px!important;}
html[data-product-design="2026"] :is(.brand-bar,.brandbar,.topbar,.site-header){box-shadow:none;border-bottom:1px solid var(--product-line);}
html[data-product-design="2026"] :is(.sdyn-lift:hover){box-shadow:0 4px 16px #10251812!important;transform:none!important;}
html[data-product-design="2026"] :is(.sdyn-hide,.sdyn-show){opacity:1!important;transform:none!important;}
html[data-product-design="2026"] :is(.ops-app,.ops-dialog){--ops-canvas:var(--product-canvas);--ops-surface:var(--product-surface);--ops-accent:var(--product-accent);--ops-ink:var(--product-ink);--ops-muted:var(--product-muted);--ops-border:var(--product-line);}
/* Forms, tables, charts, editor geometry and functional visibility remain owned by each app. */
@media(max-width:650px){html[data-product-design="2026"] :is(.hero-title,.hero h1){font-size:clamp(32px,9vw,44px)!important;}}
@media(prefers-reduced-motion:reduce){html[data-product-design="2026"]{scroll-behavior:auto!important;}html[data-product-design="2026"] :is(.sdyn-in body,.sdyn-hide,.sdyn-show){animation:none!important;transition:none!important;}}
@media print{html[data-product-design="2026"]{--product-canvas:white;--product-surface:white;--product-ink:#172820;--product-muted:#53665b;}}

/* Final identity: quiet surfaces, a single accent, and readable navigation. */
html[data-product-design="2026"]{
 --grad-warm:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-cool:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-sun:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-pink:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-mint:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --grad-iris:linear-gradient(var(--product-accent),var(--product-accent))!important;
 --blob-1:none!important;--blob-2:none!important;--blob-3:none!important;
 --chip-ink:var(--product-ink)!important;--ring:var(--product-line)!important;
}
html[data-product-design="2026"] .bg-fx{display:none!important;}
html[data-product-design="2026"] .syed-bar{background:var(--product-surface)!important;border-color:var(--product-line)!important;backdrop-filter:none!important;}
html[data-product-design="2026"] .syed-mark{background:var(--product-accent)!important;border-radius:50%!important;box-shadow:none!important;animation:none!important;color:var(--product-surface)!important;}
html[data-product-design="2026"] .syed-link-all{background:var(--product-accent)!important;color:var(--product-surface)!important;box-shadow:none!important;border-radius:6px!important;}
html[data-product-design="2026"] :is(h1,.hero-h,.hero-title) :is(.grad,.grad-cool,.g,.gtext){background:var(--product-accent)!important;background-clip:text!important;-webkit-background-clip:text!important;color:var(--product-accent)!important;-webkit-text-fill-color:var(--product-accent)!important;}
html[data-product-design="2026"] :is(.hero,.hero-section)::before,html[data-product-design="2026"] :is(.hero,.hero-section)::after{background-image:none!important;}
html[data-product-design="2026"] :is(.hero-sub,.hero-p){font-family:var(--sans)!important;}
html[data-product-design="2026"] :is(.stats .num,.stat-num,.kpi-value){font-variant-numeric:tabular-nums;}

/* Selected controls */
html[data-product-design="2026"] :is(.seg button.on,.tabs button.active,.tab.active,.mode-btn.active){background:var(--product-accent)!important;color:var(--product-surface)!important;border-color:var(--product-accent)!important;}
/* Usability review 2026-10-10: shared interaction standards, not a new skin. */
html[data-product-design="2026"] :where(input,select,textarea){font:inherit}
html[data-product-design="2026"] :where(input,textarea)::placeholder{opacity:1;color:var(--product-muted)}
html[data-product-design="2026"] :where(button,a,summary){touch-action:manipulation}
html[data-product-design="2026"] :where(button:not(:disabled),summary){cursor:pointer}
html[data-product-design="2026"] :where(button:disabled){cursor:not-allowed}
html[data-product-design="2026"] :where(nav button,.tabs button,.filters button,.chip,.seg button,.btn,.theme-toggle){min-height:36px}
html[data-product-design="2026"] :where(.refine-panel){border:1px solid var(--product-line);border-radius:8px;margin:12px 0;background:var(--product-surface)}
html[data-product-design="2026"] .refine-panel>summary{padding:12px 16px;font:600 14px/1.5 var(--sans);color:var(--product-ink)}
html[data-product-design="2026"] .refine-panel[open]>summary{border-bottom:1px solid var(--product-line);margin-bottom:12px}
html[data-product-design="2026"] .refine-panel>.filters,html[data-product-design="2026"] .refine-panel>.frow{position:static;padding:8px 16px;background:transparent}
html[data-product-design="2026"] .refine-panel>summary small{font-weight:400;color:var(--product-muted)}
html[data-product-design="2026"] .syed-bar a:first-child{min-height:44px;flex-shrink:0;display:inline-flex;align-items:center}
html[data-product-design="2026"] .syed-bar button{min-width:36px;min-height:36px}
@media(max-width:650px){
 html[data-product-design="2026"] :is(input,select,textarea):not([type=checkbox]):not([type=radio]):not([type=range]):not([type=color]):not([type=hidden]){font-size:16px!important;min-height:44px;max-width:100%;box-sizing:border-box}
 html[data-product-design="2026"] :where(nav button,.tabs button,.filters button,.chip,.seg button,.btn,.theme-toggle,summary){min-height:44px}
 html[data-product-design="2026"] :where(.hero,.hero-section){padding-top:24px;padding-bottom:16px}
 html[data-product-design="2026"] :is(.hero-title,.hero h1){font-size:clamp(30px,8vw,38px)!important}
 html[data-product-design="2026"] .syed-bar{gap:8px!important;padding-inline:12px!important}
 html[data-product-design="2026"] .syed-bar button{min-width:44px;min-height:44px}
 html[data-product-design="2026"] .refine-panel>summary{padding:12px}
 html[data-product-design="2026"] .refine-panel>.filters,html[data-product-design="2026"] .refine-panel>.frow{padding:8px 12px}
}
@media print{.refine-panel{display:none!important}}

html[data-product-design="2026"] #syed-tour-btn{position:fixed!important;right:18px!important;bottom:14px!important;float:none;margin:0!important;min-height:44px;box-shadow:none!important;background:var(--product-surface)!important;color:var(--product-ink)!important;border-color:var(--product-line)!important}

html[data-product-design="2026"] .hero>h1{background:none!important;color:var(--product-ink)!important;-webkit-text-fill-color:var(--product-ink)!important}

/* Task-first review: 2026-10-10 */
@media(max-width:650px){.bs-stacks{display:none!important}.hero .stats{margin-block:12px}.hero{padding-bottom:8px}.frow{flex-wrap:wrap}}