/* VISTASY static pages (methodology, independence, demo product): the same palette and type as the app
   (web/src/styles/vistasy.css): #f4f3fc ground, white sheets, near-black ink, one violet for the active thing, PP Neue
   Montreal for words, Atkinson Mono for numbers. Shape rule: controls are pills, sheets 16 px, labels 8 px, inputs 14 px. */
@font-face{font-family:"PP Neue Montreal";src:url("/fonts/PPNeueMontreal-Regular.woff2") format("woff2");font-weight:400;font-display:swap}
@font-face{font-family:"PP Neue Montreal";src:url("/fonts/PPNeueMontreal-Medium.woff2") format("woff2");font-weight:500 600;font-display:swap}
@font-face{font-family:"PP Neue Montreal";src:url("/fonts/PPNeueMontreal-Bold.woff2") format("woff2");font-weight:700 900;font-display:swap}
@font-face{font-family:"Atkinson Next";src:url("/fonts/atkinson-next.woff2") format("woff2");font-weight:200 800;font-display:swap}
@font-face{font-family:"Atkinson Mono";src:url("/fonts/atkinson-mono.woff2") format("woff2");font-weight:200 800;font-display:swap}

:root{
  /* the app's palette (web/src/styles/vistasy.css), so these pages match the application */
  --ground:#f4f3fc;--sheet:#ffffff;--sheet-2:#f6f5fc;--sheet-3:#ebe9f6;--ink:#16151d;--ink-2:#3f3d4c;--muted:#625f74;--faint:#9e9bb0;
  --rule:#dfdcee;--rule-2:#ebe9f5;
  --brand:#16151d;--brand-2:#2b2936;--on-brand:#ffffff;--on-brand-2:#b8b5ca;
  --cross:#7b6cf6;--cross-ink:#5646d4;--cross-soft:rgba(123,108,246,.14);
  --flag:#c8361f;--flag-soft:rgba(200,54,31,.1);
  --shadow-sm:0 1px 2px rgba(15,40,25,.06),0 1px 1px rgba(15,40,25,.04);
  --shadow:0 1px 2px rgba(15,40,25,.05),0 8px 24px -8px rgba(15,40,25,.14);
  --shadow-lg:0 2px 6px rgba(10,30,18,.08),0 24px 56px -12px rgba(10,30,18,.28);
  --r-sheet:16px;--r-label:8px;--r-input:14px;--r-photo:16px;--label-rule:color-mix(in srgb,var(--ink) 78%,transparent);--label-dash:color-mix(in srgb,var(--ink) 30%,transparent);
  --font:"PP Neue Montreal",Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"Atkinson Mono",ui-monospace,"SF Mono",Menlo,monospace;
  --ease-out:cubic-bezier(.23,1,.32,1);--ease-io:cubic-bezier(.77,0,.175,1);--ease-drawer:cubic-bezier(.32,.72,0,1);
  --gutter:16px;--rail:248px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --ground:#0e0d13;--sheet:#17161e;--sheet-2:#1e1d27;--sheet-3:#27253a;--ink:#f2f1f8;--ink-2:#c9c6d8;--muted:#9c99b0;--faint:#6c697e;
  --rule:#2d2b3b;--rule-2:#232130;--brand:#e9e6ff;--brand-2:#d6d0ff;--on-brand:#16151d;--on-brand-2:#4a4760;
  --cross:#a597ff;--cross-ink:#b9adff;--cross-soft:rgba(165,151,255,.16);--flag:#ff7b5c;--flag-soft:rgba(255,123,92,.13);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 1px 2px rgba(0,0,0,.35),0 10px 28px -10px rgba(0,0,0,.6);--shadow-lg:0 2px 6px rgba(0,0,0,.4),0 28px 60px -12px rgba(0,0,0,.75);
  color-scheme:dark}}
:root[data-theme="dark"]{
  --ground:#0e0d13;--sheet:#17161e;--sheet-2:#1e1d27;--sheet-3:#27253a;--ink:#f2f1f8;--ink-2:#c9c6d8;--muted:#9c99b0;--faint:#6c697e;
  --rule:#2d2b3b;--rule-2:#232130;--brand:#e9e6ff;--brand-2:#d6d0ff;--on-brand:#16151d;--on-brand-2:#4a4760;
  --cross:#a597ff;--cross-ink:#b9adff;--cross-soft:rgba(165,151,255,.16);--flag:#ff7b5c;--flag-soft:rgba(255,123,92,.13);
  --shadow-sm:0 1px 2px rgba(0,0,0,.4);--shadow:0 1px 2px rgba(0,0,0,.35),0 10px 28px -10px rgba(0,0,0,.6);--shadow-lg:0 2px 6px rgba(0,0,0,.4),0 28px 60px -12px rgba(0,0,0,.75);
  color-scheme:dark}
:root[data-theme="light"]{color-scheme:light}

/* base */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;background:var(--ground)}
body{margin:0;background:var(--ground);color:var(--ink);font:400 1rem/1.5 var(--font);letter-spacing:.003em;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;overflow-x:hidden;text-rendering:optimizeLegibility}
::selection{background:var(--cross);color:#06140c}
a{color:inherit;text-underline-offset:3px;text-decoration-thickness:1px}
img,video,canvas,svg{display:block;max-width:100%}
:focus-visible{outline:2px solid var(--cross-ink);outline-offset:2px;border-radius:6px}
h1,h2,h3{margin:0;font-weight:700;text-wrap:balance;color:var(--ink)}
h1{font-size:clamp(1.9rem,1.35rem + 2.6vw,2.75rem);line-height:1.06;letter-spacing:-.028em}
h2{font-size:clamp(1.3rem,1.1rem + .9vw,1.6rem);line-height:1.15;letter-spacing:-.018em}
h3{font-size:1.06rem;line-height:1.3;letter-spacing:-.008em;font-weight:700}
p{margin:0;text-wrap:pretty}
.lede{font-size:1.06rem;line-height:1.5;color:var(--ink-2);max-width:56ch}
.muted{color:var(--muted)}.small{font-size:.875rem;line-height:1.45;letter-spacing:.008em}.tiny{font-size:.78rem;letter-spacing:.012em}
.num{font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.fig{font-variant-numeric:tabular-nums;font-weight:700;color:var(--ink)}
.btn .fig,.tag .fig{color:inherit}
.err{color:var(--flag);font-size:.92rem}.err:empty{display:none}
.hidden{display:none !important}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip{position:absolute;left:-999px;z-index:100}.skip:focus{left:12px;top:12px;background:var(--sheet);padding:10px 14px;border-radius:999px}
.ico{width:1.25em;height:1.25em;flex:none;fill:currentColor}
.stack{display:flex;flex-direction:column}.row{display:flex;align-items:center}

/* buttons: pills. One primary per step, then secondary, then text links. */
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;padding:0;-webkit-user-select:none;user-select:none;touch-action:manipulation}
button:disabled{cursor:default}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.55em;min-height:48px;padding:0 1.35em;border-radius:999px;font-weight:700;font-size:1rem;letter-spacing:-.003em;white-space:nowrap;text-decoration:none;transition:transform .16s var(--ease-out),background-color .2s ease,color .2s ease,box-shadow .2s ease,opacity .2s ease}
.btn .ico{width:1.2em;height:1.2em}
.btn:not(:disabled):active{transform:scale(.97)}
.btn:disabled{opacity:.42}
.btn-primary{background:var(--brand);color:var(--on-brand);box-shadow:inset 0 1px 0 rgba(255,255,255,.08),var(--shadow-sm)}
.btn-big{min-height:56px;font-size:1.06rem;padding:0 1.6em}
.btn-block{width:100%}
.btn-secondary{background:var(--sheet);color:var(--ink);box-shadow:inset 0 0 0 1px var(--rule)}
.btn-quiet{background:var(--sheet-2);color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink-2);min-height:44px;padding:0 1em;font-weight:600}
.btn-danger{background:transparent;color:var(--flag);box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--flag) 40%,transparent)}
.btn-sm{min-height:38px;padding:0 1em;font-size:.9rem}
@media (hover:hover) and (pointer:fine){
  .btn-primary:not(:disabled):hover{background:var(--brand-2)}
  .btn-secondary:not(:disabled):hover,.btn-quiet:not(:disabled):hover{background:var(--sheet-3)}
  .btn-ghost:not(:disabled):hover{color:var(--ink)}
}
.link{display:inline;font:inherit;color:var(--ink);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-color:color-mix(in srgb,currentColor 40%,transparent);cursor:pointer}
.link:active{opacity:.6}
.icon-btn{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:999px;color:var(--ink);background:var(--sheet);box-shadow:inset 0 0 0 1px var(--rule);transition:transform .16s var(--ease-out),background-color .2s ease}
.icon-btn .ico{width:20px;height:20px}
.icon-btn:active{transform:scale(.92)}
@media (hover:hover) and (pointer:fine){.icon-btn:hover{background:var(--sheet-2)}}
[data-theme-toggle] .i-moon{display:none}[data-theme-toggle].is-dark .i-moon{display:block}[data-theme-toggle].is-dark .i-sun{display:none}

/* sheets and groups */
.sheet{background:var(--sheet);border-radius:var(--r-sheet);box-shadow:var(--shadow-sm),inset 0 0 0 1px var(--rule-2)}
.pad{padding:20px}
.group{background:var(--sheet);border-radius:var(--r-sheet);box-shadow:var(--shadow-sm),inset 0 0 0 1px var(--rule-2);overflow:hidden}
.group>.item+.item{box-shadow:inset 0 1px 0 var(--rule-2)}
.item{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;text-align:left;min-height:60px;text-decoration:none;color:var(--ink);transition:background-color .2s ease}
button.item:active,a.item:active{background:var(--sheet-2)}
@media (hover:hover) and (pointer:fine){button.item:hover,a.item:hover{background:var(--sheet-2)}}
.item .tile{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--sheet-2);color:var(--ink);flex:none}
.item .tile .ico{width:22px;height:22px}
.item .t{flex:1;min-width:0;display:flex;flex-direction:column;gap:1px}
.item .t strong{font-weight:700;font-size:1rem;line-height:1.3}
.item .t span{font-size:.875rem;color:var(--muted);line-height:1.35}
.item>.chev{color:var(--faint);width:18px;height:18px}

/* fields */
.field{display:flex;flex-direction:column;gap:8px;margin:0}
.field>label,.field>.lbl{font-weight:700;font-size:.94rem;color:var(--ink)}
.field .hint{font-size:.84rem;color:var(--muted)}
.input,input[type=email],input[type=text],input[type=password]{font:inherit;font-size:16px;width:100%;min-width:0;min-height:50px;padding:0 16px;border-radius:var(--r-input);border:0;background:var(--sheet);color:var(--ink);box-shadow:inset 0 0 0 1px var(--rule);transition:box-shadow .15s ease}
input::placeholder{color:var(--muted);opacity:1}
img:not([src]),img[src=""]{visibility:hidden}
input[type=email]:focus,input[type=text]:focus,input[type=password]:focus{outline:none;box-shadow:inset 0 0 0 2px var(--cross-ink)}
.inline-form{display:flex;gap:8px}.inline-form .input,.inline-form input{flex:1}

/* switch (checkbox styled as a switch; native semantics kept) */
.switch{display:flex;align-items:flex-start;gap:14px;cursor:pointer;padding:14px 16px}
.switch input{appearance:none;-webkit-appearance:none;flex:none;margin:0;width:46px;height:28px;border-radius:999px;background:var(--sheet-3);position:relative;cursor:pointer;transition:background-color .22s ease;box-shadow:inset 0 0 0 1px var(--rule)}
.switch input::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.25);transition:transform .26s var(--ease-out)}
.switch input:checked{background:var(--cross-ink);box-shadow:none}
.switch input:checked::after{transform:translateX(18px)}
.switch input:focus-visible{outline:2px solid var(--cross-ink);outline-offset:2px}
.switch span{flex:1;font-size:.95rem;color:var(--ink-2);line-height:1.45}
.switch span strong{color:var(--ink);display:block;font-size:1rem}
.group>.switch+.switch{box-shadow:inset 0 1px 0 var(--rule-2)}

/* segmented control with a sliding thumb (UI.segmented) */
.seg{position:relative;display:flex;gap:2px;padding:4px;border-radius:999px;background:var(--sheet-3);isolation:isolate;overflow-x:auto;scrollbar-width:none}
.seg::-webkit-scrollbar{display:none}
.seg button{position:relative;z-index:1;flex:1 0 auto;min-height:40px;padding:0 14px;border-radius:999px;font-size:.92rem;font-weight:600;color:var(--muted);white-space:nowrap;transition:color .2s ease}
.seg button.on{color:var(--ink)}
.seg .thumb{position:absolute;z-index:0;top:4px;bottom:4px;left:0;width:0;border-radius:999px;background:var(--sheet);box-shadow:var(--shadow-sm),inset 0 0 0 1px var(--rule-2);pointer-events:none}
.seg.wrap{flex-wrap:wrap;background:none;padding:0;gap:8px;border-radius:0;overflow:visible}
.seg.wrap button{flex:0 0 auto;background:var(--sheet);box-shadow:inset 0 0 0 1px var(--rule);color:var(--ink-2);min-height:44px}
.seg.wrap button.on{background:var(--brand);color:var(--on-brand);box-shadow:none}
.seg.wrap .thumb{display:none}

/* chips and tags */
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:6px;min-height:32px;padding:0 12px;border-radius:999px;background:var(--sheet-2);color:var(--ink-2);font-size:.86rem;font-weight:600;white-space:nowrap}
.chip .ico{width:16px;height:16px}
button.chip{cursor:pointer}button.chip:active{transform:scale(.96)}
.tag{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:999px;font-size:.76rem;font-weight:700;letter-spacing:.01em;background:var(--sheet-3);color:var(--ink-2);white-space:nowrap;line-height:1.5}
.tag.ok{background:var(--cross-soft);color:var(--cross-ink)}
.tag.flag{background:var(--flag-soft);color:var(--flag)}
.grade{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 5px;border-radius:6px;font:700 .72rem/1 var(--mono);background:var(--sheet-3);color:var(--ink)}
.grade.a{background:var(--brand);color:var(--on-brand)}

/* the dispensing label: the signature component */
.label{position:relative;background:var(--sheet);border-radius:var(--r-label);border:1px solid var(--label-rule);overflow:hidden}
/* the perforated tear edge, punched through the ink rule */
.label::before{content:"";position:absolute;z-index:1;left:0;right:0;top:-1px;height:6px;background:radial-gradient(circle at 6px 0,var(--ground) 3.4px,transparent 3.8px) 0 0/12px 6px repeat-x}
.label-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px 10px;font-size:.82rem;color:var(--muted);font-weight:600}
.label-head .num{color:var(--ink-2)}
.label-body{display:grid;grid-template-columns:76px 1fr;gap:14px;padding:0 16px 14px;align-items:start}
.label-img{width:76px;height:76px;border-radius:6px;background:#fff;box-shadow:inset 0 0 0 1px var(--rule-2);display:grid;place-items:center;overflow:hidden}
.label-img img{width:100%;height:100%;object-fit:contain;padding:8%}
.label-img .ph{font-size:.72rem;color:var(--muted);text-align:center;padding:6px}
.label-id{display:flex;flex-direction:column;gap:2px;min-width:0}
.label-id .brand{font-size:.84rem;color:var(--muted);font-weight:600}
.label-id .name{font-size:1.06rem;font-weight:700;line-height:1.25;letter-spacing:-.01em}
.label-id .meta{font-size:.84rem;color:var(--muted)}
.label-fields{margin:0;padding:0 16px;display:flex;flex-direction:column}
.lf{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:2px 12px;padding:10px 0;border-top:1px dashed var(--label-dash);align-items:center}
.lf dt{font-size:.94rem;font-weight:700;color:var(--ink);margin:0}
.lf dd{margin:0;grid-column:1;font-size:.86rem;color:var(--muted);line-height:1.4}
.lf dd .num{color:var(--ink-2)}
.lf .tag{grid-column:2;grid-row:1 / span 2;align-self:center}
.label-dir{padding:11px 16px 12px;border-top:1px dashed var(--label-dash);font-size:.98rem;font-weight:700;line-height:1.35;color:var(--ink);display:flex;gap:10px;align-items:flex-start}
.label-dir .ico{color:var(--ink);margin-top:1px}
.label-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 16px 14px;border-top:1px solid var(--label-rule);background:var(--sheet-2)}
.label-foot .who{font-size:.78rem;color:var(--muted);line-height:1.35}
.label-foot .who .num{color:var(--ink-2)}
.label-foot .btn{min-height:40px;font-size:.92rem}
.label-caution{padding:0 16px 12px;font-size:.86rem;color:var(--flag);display:flex;gap:8px;align-items:flex-start}
.label-caution .ico{margin-top:2px}

/* a verdict stamped onto the label (product check) */
.stamp{display:inline-flex;align-items:center;gap:8px;padding:8px 14px 8px 12px;border-radius:10px;border:2px solid currentColor;font:800 .95rem/1 var(--font);letter-spacing:.06em;text-transform:uppercase;transform:rotate(-2.5deg);transform-origin:20% 60%}
.stamp .ico{width:20px;height:20px}
.stamp.fits{color:var(--cross-ink);background:var(--cross-soft)}
.stamp.neutral{color:var(--ink-2);background:var(--sheet-2)}
.stamp.caution{color:var(--flag);background:var(--flag-soft)}

/* reference scale: a value against its bands, like a lab range */
.scale{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:3px;height:8px;margin:14px 0 6px}
.scale i{border-radius:2px;background:var(--sheet-3)}
.scale i.in{background:var(--ink)}
.scale .mark{position:absolute;top:-5px;width:3px;height:18px;margin-left:-1.5px;border-radius:2px;background:var(--cross-ink);box-shadow:0 0 0 3px var(--sheet)}
.scale.hi i.in,.scale.hi .mark{background:var(--flag)}
.scale-words.hi span.in{color:var(--flag)}
.scale-words{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:3px;font-size:.68rem;color:var(--muted);letter-spacing:0}
.scale-words span{overflow:hidden;white-space:nowrap}
.scale-words span.in{color:var(--ink);font-weight:700}

/* toast (UI.toast) */
.toasts{position:fixed;left:0;right:0;top:calc(10px + env(safe-area-inset-top,0px));z-index:80;display:flex;flex-direction:column;align-items:center;gap:8px;pointer-events:none}
.toast{pointer-events:auto;display:flex;align-items:center;gap:10px;max-width:min(92vw,420px);padding:12px 18px 12px 14px;border-radius:999px;background:var(--brand);color:var(--on-brand);font-weight:600;font-size:.94rem;box-shadow:var(--shadow-lg);touch-action:none}
.toast .ico{width:20px;height:20px;color:var(--cross)}
.h3{font-size:1.06rem;line-height:1.3;letter-spacing:-.008em}

/* shimmer text: a band of light sweeping a status line while work happens */
.shimmer{background:linear-gradient(100deg,var(--ink) 0%,var(--ink) 40%,var(--cross-ink) 50%,var(--ink) 60%,var(--ink) 100%) 0 0/250% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shimmer 1.8s linear infinite}
@keyframes shimmer{from{background-position:100% 0}to{background-position:-150% 0}}

/* border beam: light travelling round a frame while the scan runs */
@property --beam{syntax:"<angle>";inherits:false;initial-value:0deg}
.beam{position:relative}
.beam::after{content:"";position:absolute;inset:0;border-radius:inherit;padding:3px;background:conic-gradient(from var(--beam),transparent 0deg,transparent 220deg,var(--cross) 320deg,#fff 352deg,transparent 360deg);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box exclude,linear-gradient(#000 0 0);animation:beam 2.4s linear infinite;pointer-events:none;z-index:3}
@keyframes beam{to{--beam:360deg}}

/* reading pages (methodology) */
.page-top{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:calc(10px + env(safe-area-inset-top,0px)) max(var(--gutter),calc((100% - 760px)/2)) 10px;background:color-mix(in srgb,var(--ground) 82%,transparent);-webkit-backdrop-filter:blur(18px) saturate(160%);backdrop-filter:blur(18px) saturate(160%)}
.wordmark{display:inline-flex;align-items:center;gap:10px;font:800 .95rem/1 var(--font);letter-spacing:.2em;text-decoration:none;color:inherit}
.wordmark .mark{width:22px;height:22px;flex:none}
.prose{max-width:760px;margin:0 auto;padding:12px var(--gutter) 80px}
.prose h1{margin:18px 0 12px}
.prose h2{margin:36px 0 10px;font-size:1.3rem}
.prose p,.prose li{color:var(--ink-2);line-height:1.62;max-width:68ch}
.prose p+p{margin-top:12px}
.prose ul{padding-left:1.2em}.prose li{margin:6px 0}
.prose table{width:100%;border-collapse:collapse;margin:14px 0 4px;font-size:.95rem;background:var(--sheet);border-radius:var(--r-sheet);overflow:hidden}
.prose th,.prose td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--sheet-3);color:var(--ink-2);line-height:1.5}
.prose th{font-weight:700;color:var(--ink);background:var(--sheet-2)}.prose tr:last-child td{border-bottom:0}.prose td:first-child{font-weight:700;color:var(--ink);white-space:nowrap}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.12s !important}
  .btn:active,.icon-btn:active,button.chip:active{transform:none}
  .shimmer{animation:none;color:var(--ink);background:none}
  .beam::after{animation:none;background:var(--cross)}
}
@media (prefers-contrast:more){:root{--rule:#5b6a62;--rule-2:#7d8b83;--muted:#3e4c44}}
@media print{body{background:#fff}.tabbar,.rail,.fab,.drawer,.scrim,.toasts,.no-print{display:none !important}.sheet,.group,.label{box-shadow:inset 0 0 0 1px #bbb}}
html.theme-fade *,html.theme-fade *::before,html.theme-fade *::after{transition:background-color .3s ease,color .3s ease,box-shadow .3s ease,fill .3s ease !important}
.seg button{display:inline-flex;align-items:center;justify-content:center;gap:6px}
.seg button .ico{width:18px;height:18px}