:root{
  --paper:#ece3cf; --panel:#fbf6ec; --ink:#34302a; --soft:#6b5d44;
  --blue:#2f5ca8; --teal:#2aa7a0; --line:#d8cbb0; --pink:#e8728a;
  --gold:#e0a948; --green:#5a9b6b; --shadow:rgba(70,55,25,.14);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  min-height:100vh;background:var(--paper);color:var(--ink);overflow-x:hidden;
  font-family:"Segoe UI",system-ui,-apple-system,Verdana,sans-serif;
  background-image:
    radial-gradient(ellipse at 50% -8%, rgba(255,251,240,.95), transparent 55%),
    radial-gradient(circle at 12% 18%, rgba(47,92,168,.06), transparent 24%),
    radial-gradient(circle at 88% 12%, rgba(90,155,107,.08), transparent 22%);
}
.wrap{max-width:680px;margin:0 auto;padding:42px 20px 64px}

/* header */
header{text-align:center;margin-bottom:30px}
h1{font-family:Georgia,"Times New Roman",serif;font-size:clamp(32px,6.6vw,48px);font-weight:800;
  letter-spacing:.01em;line-height:1.05}
h1 .paw{display:inline-block;animation:wag 2.4s ease-in-out infinite;transform-origin:70% 70%}
@keyframes wag{0%,100%{transform:rotate(-8deg)}50%{transform:rotate(10deg)}}
h1 .u{display:block;width:78px;height:4px;background:var(--green);border-radius:3px;margin:14px auto 0}
.tag{font-size:15.5px;color:var(--soft);margin:16px auto 0;max-width:36em;line-height:1.55}
.tag b{color:var(--ink)}

/* input card */
.input{background:var(--panel);border:1px solid var(--line);border-radius:20px;
  padding:22px 22px 26px;box-shadow:0 8px 26px var(--shadow);margin-top:30px}
.field{margin-bottom:20px}
.field:last-child{margin-bottom:0}
label{display:block;font-weight:700;font-size:14.5px;margin-bottom:9px;color:var(--ink)}
label .hint{font-weight:400;color:var(--soft);font-size:13px}
.hint.sub{display:block;margin-top:8px;font-size:12.5px;line-height:1.5}
input[type=text],input[type=number]{width:100%;font:inherit;font-size:16px;padding:12px 14px;border:1.5px solid var(--line);
  border-radius:12px;background:#fff;color:var(--ink)}
input[type=text]:focus,input[type=number]:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,92,168,.14)}

/* breed button */
.breed-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font:inherit;font-size:16px;text-align:left;padding:13px 16px;border:1.5px dashed var(--blue);
  border-radius:12px;background:#fff;color:var(--blue);cursor:pointer;font-weight:600;
  transition:background .15s,transform .1s}
.breed-btn:hover{background:#eef3fb}
.breed-btn:active{transform:scale(.99)}
.breed-btn.chosen{border-style:solid;color:var(--ink);background:#fff}
.breed-btn .chev{font-size:13px;opacity:.6}
#breedLabel{font-weight:700}

/* age controls */
.age-row{display:flex;gap:14px;align-items:flex-end;flex-wrap:wrap}
.age-slider{flex:1 1 240px;min-width:200px}
input[type=range]{width:100%;-webkit-appearance:none;appearance:none;height:8px;border-radius:6px;
  background:linear-gradient(90deg,var(--teal),var(--green));outline:none;margin-top:6px}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:26px;height:26px;
  border-radius:50%;background:#fff;border:3px solid var(--green);cursor:pointer;box-shadow:0 2px 6px var(--shadow)}
input[type=range]::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:#fff;
  border:3px solid var(--green);cursor:pointer}
.num-box{display:flex;flex-direction:column;width:84px}
.num-box small{font-size:12px;color:var(--soft);margin-bottom:4px;font-weight:600}
.num-box input{width:100%;font:inherit;font-size:16px;padding:9px 8px;text-align:center;
  border:1.5px solid var(--line);border-radius:10px;background:#fff;color:var(--ink)}
.num-box input:focus{outline:none;border-color:var(--blue)}
.scale-ends{display:flex;justify-content:space-between;font-size:11.5px;color:var(--soft);margin-top:4px}

/* weight + unit toggle */
.wt-row{display:flex;gap:10px;align-items:stretch}
.wt-row input{flex:1}
.unit-toggle{display:flex;border:1.5px solid var(--line);border-radius:12px;overflow:hidden;background:#fff;flex-shrink:0}
.unit{font:inherit;font-weight:700;font-size:15px;padding:0 16px;border:none;background:transparent;color:var(--soft);cursor:pointer}
.unit.on{background:var(--green);color:#fff}

/* result */
#result{margin-top:28px}
.keepsake{background:var(--panel);border:1px solid var(--line);border-radius:22px;padding:26px 24px 20px;
  box-shadow:0 12px 34px var(--shadow);position:relative;overflow:hidden;text-align:center;
  animation:pop .4s cubic-bezier(.2,1.3,.5,1) both}
.keepsake.nudge{padding:22px 24px}
@keyframes pop{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.cert-deco{position:absolute;top:-14px;right:-6px;font-size:96px;opacity:.06;transform:rotate(-12deg);pointer-events:none}
.pup-emoji{font-size:52px;line-height:1;margin-bottom:4px;animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-5px)}}

.big-line{font-size:14px;color:var(--soft);letter-spacing:.04em;text-transform:uppercase;font-weight:600}
.nudge .big-line{text-transform:none;font-size:16px;letter-spacing:0;line-height:1.5}
.nudge .big-line b{color:var(--ink)}
.big-num{font-family:Georgia,serif;font-size:clamp(20px,4.6vw,26px);margin-top:6px;line-height:1.25}
.big-num .range{color:var(--green);font-size:1.35em}
.big-num b{color:var(--green)}
.big-sub{font-size:13.5px;color:var(--soft);margin-top:10px;line-height:1.5}
.big-sub b{color:var(--ink)}

/* growth bar */
.journey{margin:22px 4px 6px}
.journey-track{position:relative;height:14px;border-radius:9px;background:#efe6d2;border:1px solid var(--line);overflow:visible}
.journey-fill{height:100%;border-radius:9px;background:linear-gradient(90deg,var(--teal),var(--green));transition:width .5s cubic-bezier(.2,1,.4,1)}
.journey-paw{position:absolute;top:50%;transform:translate(-50%,-55%);font-size:20px;transition:left .5s cubic-bezier(.2,1,.4,1);filter:drop-shadow(0 1px 2px rgba(0,0,0,.18))}
.journey-ends{display:flex;justify-content:space-between;font-size:11.5px;color:var(--soft);margin-top:8px}
.journey-ends span:nth-child(2){font-weight:700;opacity:.85;color:var(--green)}

/* chart */
.chart{display:block;width:100%;height:auto;margin:18px 0 6px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:4px}
.chart .grid{stroke:#eadfc8;stroke-width:1}
.chart .band{fill:rgba(90,155,107,.16)}
.chart .curve{fill:none;stroke:var(--green);stroke-width:2.5;stroke-linejoin:round;stroke-linecap:round}
.chart .done{stroke:var(--gold);stroke-width:1.5;stroke-dasharray:4 3}
.chart .nowdot{fill:#fff;stroke:var(--blue);stroke-width:3}
.chart .nowlab{font:700 11px "Segoe UI",sans-serif;fill:var(--blue)}
.chart .ax{font:600 10px "Segoe UI",sans-serif;fill:var(--soft)}
.chart .ax.y{text-anchor:end}
.chart .axunit{font:700 10px "Segoe UI",sans-serif;fill:var(--soft)}

/* message + ref */
.message{margin:18px 0 0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:16px 18px;text-align:left}
.message p{font-size:14px;line-height:1.6;color:var(--ink)}
.ref{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:14px;background:#f6efe0;
  border-radius:12px;padding:12px 16px;text-align:left}
.ref-k{font-size:13px;color:var(--soft);font-weight:600}
.ref-v{font-family:Georgia,serif;font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap}
.snip{margin-top:14px;font-size:13px;line-height:1.55;color:var(--soft);background:#f6efe0;border-radius:12px;padding:12px 14px;text-align:left}
.cert-foot{display:none;margin-top:16px;font-size:11px;letter-spacing:1.5px;color:#a89878;text-transform:uppercase}

/* actions */
.actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin-top:18px}
.actions button{font:inherit;font-weight:700;font-size:14px;padding:11px 16px;border-radius:12px;cursor:pointer;
  border:1.5px solid var(--line);background:#fff;color:var(--ink);transition:transform .1s,background .15s,border-color .15s}
.actions button:hover{border-color:var(--green);background:#eef6ef}
.actions button:active{transform:scale(.97)}
.disclaimer{text-align:center;font-size:12.5px;color:var(--soft);margin-top:18px;line-height:1.5;max-width:34em;margin-left:auto;margin-right:auto}

/* explainer */
.why{margin-top:38px;border-top:1px dashed var(--line);padding-top:26px}
.why h2{font-family:Georgia,serif;font-size:20px;margin-bottom:10px;text-align:center}
.why p{font-size:14px;line-height:1.6;color:var(--soft);max-width:40em;margin:0 auto 12px;text-align:center}
.why .curve{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;margin:16px auto 4px}
.why .chip{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 14px;font-size:13px;text-align:center;min-width:118px}
.why .chip b{display:block;font-size:15px;color:var(--green);margin-bottom:2px}
.why .chip small{color:var(--soft)}

.back{display:block;text-align:center;margin-top:34px;font-size:14px;color:var(--blue);text-decoration:none}
.back:hover{text-decoration:underline}
footer{text-align:center;font-size:12px;color:var(--soft);opacity:.7;margin-top:12px}

/* toast */
.pp-toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,12px);background:var(--ink);color:#fff;
  padding:11px 20px;border-radius:999px;font-size:14px;font-weight:600;z-index:400;opacity:0;transition:opacity .3s,transform .3s;box-shadow:0 8px 24px rgba(0,0,0,.3)}
.pp-toast.show{opacity:1;transform:translate(-50%,0)}

/* breed picker modal */
.picker{position:fixed;inset:0;z-index:200;background:rgba(52,48,42,.5);backdrop-filter:blur(3px);
  display:flex;align-items:flex-end;justify-content:center;padding:0;animation:fade .2s both}
.picker[hidden]{display:none}
@media(min-width:560px){.picker{align-items:center;padding:24px}}
@keyframes fade{from{opacity:0}to{opacity:1}}
.picker-box{background:var(--panel);width:100%;max-width:520px;max-height:86vh;border-radius:22px 22px 0 0;
  display:flex;flex-direction:column;box-shadow:0 -10px 40px rgba(0,0,0,.3);animation:slideup .28s cubic-bezier(.2,1,.4,1) both}
@media(min-width:560px){.picker-box{border-radius:22px;animation:pop .28s cubic-bezier(.2,1.2,.5,1) both}}
@keyframes slideup{from{transform:translateY(40px);opacity:.6}to{transform:none;opacity:1}}
.picker-head{padding:18px 20px 12px;border-bottom:1px solid var(--line);position:relative}
.picker-head h2{font-family:Georgia,serif;font-size:21px;text-align:center}
.picker-head p{text-align:center;font-size:12.5px;color:var(--soft);margin-top:2px}
.picker-close{position:absolute;top:12px;right:14px;border:none;background:#efe6d2;width:34px;height:34px;
  border-radius:50%;font-size:18px;cursor:pointer;color:var(--ink);line-height:1}
.picker-close:hover{background:#e4d8be}
.picker-search{padding:12px 16px 8px}
.picker-search input{width:100%;font:inherit;font-size:15px;padding:11px 14px;border:1.5px solid var(--line);border-radius:12px;background:#fff}
.picker-search input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,92,168,.14)}
.picker-list{overflow-y:auto;padding:6px 12px 16px;flex:1}
.breed-item{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font:inherit;text-align:left;padding:12px 14px;border:none;border-radius:12px;background:transparent;cursor:pointer;color:var(--ink);border-bottom:1px solid #efe6d2}
.breed-item:hover{background:#eef6ef}
.bi-name{font-weight:600;font-size:15px}
.bi-meta{font-size:12px;color:var(--soft);white-space:nowrap}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001s !important;animation-iteration-count:1 !important;scroll-behavior:auto}
}

/* PRINT: just the keepsake */
@media print{
  body{background:#fff}
  .wrap{padding:0;max-width:none}
  header,.input,.why,.back,footer,.actions,.disclaimer,.picker,.no-print,.cert-deco{display:none !important}
  #result{margin:0}
  .keepsake{box-shadow:none;border:2px solid #d8cbb0;border-radius:18px;animation:none;page-break-inside:avoid;margin:0 auto;max-width:600px}
  .pup-emoji{animation:none}
  .cert-foot{display:block}
  .message,.snip,.ref,.chart{break-inside:avoid}
}

/* Dark mode: follows the device setting (added 2026-10-07). */
@media (prefers-color-scheme: dark) {
  :root { color-scheme: dark; }
  :root {
    --paper: #1c1a17;
    --panel: #26231f;
    --ink: #ece5d8;
    --soft: #b8ae9c;
    --line: #3d372e;
    --blue: #8aaef0;
    --teal: #5ce0d8;
    --pink: #ffb3c1;
    --gold: #f2c779;
    --green: #8bc99c;
    --shadow: rgba(0,0,0,.4);
  }
  body {
    background-image:
      radial-gradient(ellipse at 50% -8%, rgba(38,35,31,.95), transparent 55%),
      radial-gradient(circle at 12% 18%, rgba(138,174,240,.06), transparent 24%),
      radial-gradient(circle at 88% 12%, rgba(139,201,156,.08), transparent 22%);
  }
  input[type=text], input[type=number] { background: #1f1d19; color: var(--ink); border-color: #4a4338; }
  input[type=text]:focus, input[type=number]:focus { box-shadow: 0 0 0 3px rgba(138,174,240,.14); }
  .breed-btn { background: #1f1d19; }
  .breed-btn:hover { background: #2e2a25; }
  .breed-btn.chosen { background: #1f1d19; }
  input[type=range]::-webkit-slider-thumb { background: #ece5d8; }
  input[type=range]::-moz-range-thumb { background: #ece5d8; }
  .num-box input { background: #1f1d19; color: var(--ink); border-color: #4a4338; }
  .unit-toggle { background: #1f1d19; }
  .unit.on { color: #1c1a17; }
  .journey-track { background: #1f1d19; }
  .chart { background: #26231f; }
  .chart .nowdot { fill: #26231f; }
  .message { background: #26231f; }
  .ref { background: #1f1d19; }
  .snip { background: #1f1d19; }
  .actions button { background: #1f1d19; }
  .actions button:hover { background: #2e2a25; }
  .picker-search input { background: #1f1d19; border-color: #4a4338; }
  .picker-close { background: #1f1d19; color: var(--ink); }
  .picker-close:hover { background: #2e2a25; }
  .breed-item { border-bottom-color: #3d372e; }
  .breed-item:hover { background: #2e2a25; }

  #jd-consent { background: #26231f; color: var(--ink); }
  #jd-consent a { color: var(--blue); }
  #jd-consent .jd-accept { background: var(--blue); color: #1c1a17; }
  #jd-consent .jd-accept:hover { background: #abc6f5; }
  #jd-consent .jd-decline { background: #2e2a25; color: var(--ink); border-color: #4a4338; }
  #jd-consent .jd-decline:hover { background: #3d372e; }
}