/* VALŪ — tokens and shell. Ice blue carries every action; navy text; silver is texture. */
:root{
  --canvas:#FFFFFF; --ice-surface:#F3F7FA; --silver-rule:#CBD3DB; --silver-metal:#A9B4BF;
  --ice:#BFE3F7; --ice-deep:#8FCBEF; --ink:#0E1B2B; --muted:#4A5868;
  --caution:#9A5B00; --stop:#B42318; --complete:#1B7F5C;
  --r:14px; --r-btn:12px; --shadow:none;
  --display:'Manrope',system-ui,-apple-system,sans-serif; --body:'Albert Sans',system-ui,-apple-system,sans-serif;
  --safe-b:env(safe-area-inset-bottom,0px); --safe-t:env(safe-area-inset-top,0px);
}
*{box-sizing:border-box} html,body{height:100%}
body{margin:0;font-family:var(--body);color:var(--ink);background:var(--canvas);font-size:17px;line-height:1.45;-webkit-text-size-adjust:100%}
button,input,select,textarea{font:inherit;color:inherit}
a{color:var(--ink)} h1,h2,h3{font-family:var(--display);margin:0;line-height:1.15;letter-spacing:-0.01em}
h1{font-size:30px;font-weight:700} h2{font-size:22px;font-weight:700} h3{font-size:17px;font-weight:600}
p{margin:0} .muted{color:var(--muted)} .small{font-size:14px} .tiny{font-size:12px}
.label{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.tabular{font-variant-numeric:tabular-nums}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* Two-row mobile shell (Recipe 10): scrolling content row + normal-flow nav row */
.shell{height:100dvh;display:flex;flex-direction:column;max-width:560px;margin:0 auto;background:var(--canvas)}
.content{flex:1 1 auto;min-height:0;overflow-y:auto;overflow-x:hidden;padding:calc(var(--safe-t) + 14px) 20px 24px;display:flex;flex-direction:column;gap:14px;-webkit-overflow-scrolling:touch}
.nav{flex:0 0 auto;display:flex;}
.nav[hidden]{display:none}
.nav{border-top:1px solid var(--silver-rule);padding:6px 8px calc(6px + var(--safe-b));background:var(--canvas)}
.nav a{flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;gap:3px;padding:6px 0;text-decoration:none;color:var(--muted);font-size:11px;font-weight:500;min-height:44px}
.nav a span.i{display:flex;align-items:center;justify-content:center;width:52px;height:30px;border-radius:999px}
.nav a[aria-current="page"]{color:var(--ink);font-weight:600} .nav a[aria-current="page"] span.i{background:var(--ice)}
.nav svg{width:20px;height:20px}

.top{display:flex;align-items:center;justify-content:space-between;min-height:44px}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none}
.iconbtn{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:0;background:transparent;border-radius:12px;cursor:pointer}
.iconbtn:hover{background:var(--ice-surface)}
:focus-visible{outline:3px solid var(--ice);outline-offset:2px}

.card{border:1px solid var(--silver-rule);border-radius:var(--r);background:var(--canvas);padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:12px}
.card.surface{background:var(--ice-surface);border-color:transparent}
.row{display:flex;gap:12px;align-items:center} .row.between{justify-content:space-between} .col{display:flex;flex-direction:column;gap:6px} .grow{flex:1 1 0;min-width:0}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.btn{min-height:54px;padding:0 22px;border-radius:var(--r-btn);border:0;background:var(--ice);color:var(--ink);font-size:17px;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;text-decoration:none}
.btn:hover{background:#B2DCF5} .btn:active{transform:translateY(1px)}
.btn.secondary{background:var(--canvas);border:1px solid var(--silver-rule);font-weight:500}
.btn.quiet{background:transparent;border:0;min-height:44px;font-weight:500;color:var(--muted)}
.btn.stop{background:var(--canvas);border:1px solid var(--stop);color:var(--stop)}
.btn[disabled]{opacity:.5;cursor:default}
.chip{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 10px;border-radius:999px;border:1px solid var(--silver-rule);font-size:13px;white-space:nowrap}
.chip.ice{background:var(--ice);border-color:transparent} .chip.ok{border-color:var(--complete);color:var(--complete)}
.chip.caution{border-color:var(--caution);color:var(--caution)} .chip.stop{border-color:var(--stop);color:var(--stop)}
.notice{display:flex;gap:10px;align-items:flex-start;padding:12px 14px;border-radius:12px;background:var(--ice-surface);font-size:14px;line-height:1.45}
.notice.caution{background:#FFF6E8;color:#6B3F00} .notice.stop{background:#FBEAE8;color:#7A1A12} .notice.ok{background:#E8F5EF;color:#145A42}
.notice svg{flex:0 0 auto;margin-top:2px}
.field{display:flex;flex-direction:column;gap:6px} .field label{font-size:14px;font-weight:600}
.field input,.field select,.field textarea{min-height:48px;padding:10px 12px;border:1px solid var(--silver-rule);border-radius:12px;background:var(--canvas);width:100%}
.field textarea{min-height:80px}
.seg{display:flex;gap:6px;flex-wrap:wrap} .seg button{min-height:44px;padding:0 14px;border-radius:999px;border:1px solid var(--silver-rule);background:var(--canvas);cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--ice);border-color:transparent;font-weight:600}
.range{display:flex;align-items:center;gap:10px} .range input{flex:1} .range output{width:44px;text-align:right;font-family:var(--display);font-weight:700}
.list{display:flex;flex-direction:column;gap:8px} .item{display:flex;gap:12px;align-items:center;padding:12px 14px;border:1px solid var(--silver-rule);border-radius:12px;text-align:left;background:var(--canvas);cursor:pointer;width:100%}
.item[aria-pressed="true"]{border-color:var(--ice-deep);background:var(--ice-surface)}
.hr{height:1px;background:var(--silver-rule)}
.empty{padding:28px 18px;text-align:center;color:var(--muted);border:1px dashed var(--silver-rule);border-radius:var(--r)}

/* Value bar timer: the macron over the U drains as the session runs */
.valubar{display:flex;flex-direction:column;align-items:center;gap:8px}
.valubar svg{width:min(56vw,220px);height:auto;overflow:visible}
.valubar.small svg{width:84px}
.valubar .track{fill:var(--silver-rule)} .valubar .fill{fill:var(--ice-deep);transition:width .9s linear}
.valubar .glow{fill:var(--ice);opacity:.6}
.digits{font-family:var(--display);font-weight:700;font-size:64px;letter-spacing:-.03em;line-height:1}
.session-complete .valubar .fill{fill:var(--complete)}
.pulse{animation:pulse 1.6s ease-out 1} @keyframes pulse{0%{box-shadow:0 0 0 0 rgba(191,227,247,.9)}100%{box-shadow:0 0 0 28px rgba(191,227,247,0)}}
.progressbar{height:8px;border-radius:999px;background:var(--silver-rule);overflow:hidden} .progressbar>div{height:100%;background:linear-gradient(90deg,var(--silver-metal),var(--ice-deep));border-radius:999px}

/* Photo compare */
.compare{position:relative;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:var(--ice-surface)}
.compare img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.compare .after{clip-path:inset(0 0 0 50%)} .compare input[type=range]{position:absolute;inset:0;width:100%;height:100%;opacity:0;margin:0;cursor:ew-resize}
.compare .handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:var(--canvas);pointer-events:none}
.compare .knob{position:absolute;top:50%;left:50%;width:36px;height:36px;margin:-18px 0 0 -18px;border-radius:999px;background:var(--ice);border:2px solid var(--canvas);pointer-events:none;display:flex;align-items:center;justify-content:center}
.compare .tag{position:absolute;bottom:10px;font-size:12px;font-weight:600;background:rgba(255,255,255,.88);padding:3px 8px;border-radius:6px} .tag.l{left:10px} .tag.r{right:10px}
.guide{position:relative;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:#0E1B2B} .guide video,.guide canvas{width:100%;height:100%;object-fit:cover;display:block}
.guide .overlay{position:absolute;inset:0;pointer-events:none}
.sheet{position:fixed;inset:0;background:rgba(14,27,43,.35);display:flex;align-items:flex-end;justify-content:center;z-index:20}
.sheet>div{background:var(--canvas);border-radius:22px 22px 0 0;width:100%;max-width:560px;max-height:92dvh;overflow:auto;padding:18px 20px calc(20px + var(--safe-b));display:flex;flex-direction:column;gap:14px}
.sheet .grab{width:44px;height:5px;border-radius:999px;background:var(--silver-rule);margin:0 auto}
dialog{border:0;padding:0;background:transparent} dialog::backdrop{background:rgba(14,27,43,.35)}
.evidence{border-left:0} .evidence h3{font-size:17px} .evidence .meta{display:flex;gap:6px;flex-wrap:wrap}
.product{display:flex;flex-direction:column;gap:10px} .product .spec{display:grid;grid-template-columns:auto 1fr;gap:4px 12px;font-size:14px} .product .spec dt{color:var(--muted)} .product .spec dd{margin:0}
.toast{position:fixed;left:50%;bottom:calc(88px + var(--safe-b));transform:translateX(-50%);background:var(--ink);color:#fff;padding:10px 16px;border-radius:999px;font-size:14px;z-index:30;box-shadow:0 8px 24px rgba(14,27,43,.2)}
@media (prefers-reduced-motion: reduce){.valubar .fill{transition:none}.pulse{animation:none}}
@media (min-width:720px){.shell{border-left:1px solid var(--silver-rule);border-right:1px solid var(--silver-rule)}}

/* Learn infographics */
.info{gap:12px} .info-q{font-size:20px;line-height:1.2} .art{border-radius:12px;background:var(--ice-surface);padding:10px 12px}
.facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px} .fact{display:flex;flex-direction:column;gap:2px;padding:10px;border:1px solid var(--silver-rule);border-radius:12px;min-width:0}
.fact .big{font-family:var(--display);font-weight:800;font-size:19px;letter-spacing:-.01em;line-height:1.1;word-break:break-word}
.take{font-size:15px;line-height:1.45} .meter{display:inline-flex;align-items:center;gap:6px} .meter i{display:inline-block;width:14px;height:6px;border-radius:3px}
details.plain,.info details{border:0;padding:0} .info summary{min-height:44px;display:flex;align-items:center;font-weight:600;font-size:14px;color:var(--muted);cursor:pointer;list-style:none} .info summary::-webkit-details-marker{display:none}
@media (max-width:360px){.facts{grid-template-columns:1fr 1fr}}

.badge{position:absolute;top:6px;right:6px;min-width:18px;height:18px;border-radius:999px;background:var(--ink);color:#fff;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;padding:0 5px}
.notif.read{opacity:.7} .dot{width:10px;height:10px;border-radius:999px;background:var(--ice-deep);margin-top:6px;flex:0 0 auto} .dot.ok{background:var(--complete)} .dot.caution{background:var(--caution)}
a.notice{cursor:pointer} a.notice:hover{filter:brightness(.98)}