:root{color-scheme:light;--content-width:1116px;--ink:#14212b;--muted:#5d6b76;--line:#dce5e9;--panel:#ffffff;--panel-soft:#f5f8f8;--page:#f7f7f7;--teal:#147c79;--teal-dark:#0f5f5d;--mint:#bce7d7;--amber:#f4a340;--red:#c74444;--green:#16845d;--blue:#376c9f;--shadow:0 14px 34px rgba(33,33,33,0.08);--radius:8px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}:root[data-theme="dark"]{color-scheme:dark;--ink:#eef6f5;--muted:#aebdc2;--line:#26353a;--panel:#11191d;--panel-soft:#172226;--page:#050708;--teal:#52c8bb;--teal-dark:#78d9cf;--mint:#9ee8da;--amber:#f5b55b;--red:#ff6b72;--green:#57d098;--blue:#7eaee0;--shadow:0 18px 50px rgba(0,0,0,0.35)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:var(--page);color:var(--ink)}:root[data-theme="dark"] body{background:linear-gradient(180deg,rgba(82,200,187,0.1),transparent 420px),var(--page)}button,textarea,select{font:inherit}button,select{min-height:34px}button{cursor:pointer}textarea,pre,code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace}textarea{width:100%;min-height:196px;resize:vertical;border:1px solid var(--line);border-radius:var(--radius);padding:12px;background:var(--input-bg,#fbfdfd);color:var(--ink);line-height:1.55;outline:none}:root[data-theme="dark"] textarea{--input-bg:#091014}textarea:disabled{opacity:0.58;cursor:not-allowed}textarea:focus,select:focus,button:focus-visible,a:focus-visible{outline:3px solid rgba(20,124,121,0.25);outline-offset:2px}a{color:inherit;text-decoration:none}.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;min-height:56px;margin:0;padding:0 max(18px,calc((100vw - var(--content-width)) / 2));border-bottom:1px solid rgba(255,255,255,0.38);background:rgba(255,255,255,0.34);box-shadow:0 10px 30px rgba(33,33,33,0.04);backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%)}:root[data-theme="dark"] .topbar{border-bottom-color:rgba(255,255,255,0.08);background:rgba(5,7,8,0.38)}.brand{display:inline-flex;align-items:center;gap:10px;font-size:0.96rem;font-weight:800;white-space:nowrap}.brand-mark{width:38px;height:38px;filter:drop-shadow(0 8px 12px rgba(20,124,121,0.18))}.nav{display:flex;align-items:center;gap:8px;font-size:0.88rem;color:var(--muted);font-weight:500}.nav a{border-radius:999px;padding:7px 12px}.nav a:first-child{background:var(--panel-soft);color:var(--ink)}.nav a:hover{color:var(--teal)}.topbar-actions{display:flex;align-items:center;gap:clamp(14px,3vw,28px)}.theme-toggle{display:inline-flex;align-items:center;width:38px;min-width:38px;height:38px;justify-content:center;border:1px solid var(--line);border-radius:999px;background:var(--panel);color:var(--ink);font-weight:500;font-size:1rem}.theme-toggle:hover{border-color:var(--teal)}.theme-toggle-icon{color:var(--teal);line-height:1}.hero{display:block;max-width:var(--content-width);margin:0 auto;padding:24px 0 18px;text-align:center}.hero-copy{max-width:560px;margin:0 auto}.eyebrow,.panel-kicker{margin:0 0 6px;color:var(--teal);font-size:0.72rem;font-weight:900;text-transform:uppercase}.hero h1{margin:0;font-size:clamp(1.65rem,2.6vw,2.2rem);line-height:1.05}.hero p:last-child{max-width:560px;margin:6px auto 0;color:var(--muted);font-size:clamp(0.86rem,1.15vw,0.94rem);line-height:1.45}.hero p:last-child a,.info-grid a{color:var(--teal);font-weight:700;text-decoration:underline;text-underline-offset:3px}.policy-main{width:min(860px,calc(100% - 36px));margin:0 auto;padding:34px 0 54px}.policy-hero{margin-bottom:22px;text-align:center}.policy-hero h1{margin:0;font-size:clamp(2rem,4vw,3.1rem);line-height:1.05}.policy-hero p:last-child{margin:10px 0 0;color:var(--muted)}.policy-content{display:grid;gap:20px;border-top:1px solid var(--line);padding-top:24px}.policy-content article{padding:0}.policy-content h2{margin:0 0 8px;font-size:1.08rem}.policy-content p{margin:0;color:var(--muted);line-height:1.6}.policy-content a{color:var(--teal);font-weight:700;text-decoration:underline;text-underline-offset:3px}.hero-visual{display:none;min-height:205px;align-content:center;gap:14px}.token-strip{display:grid;grid-template-columns:1fr 14px 1.5fr 14px 1.1fr;align-items:center;gap:10px;padding:12px;border:1px solid rgba(20,33,43,0.12);border-radius:var(--radius);background:rgba(255,255,255,0.75);box-shadow:var(--shadow)}:root[data-theme="dark"] .token-strip{background:rgba(17,25,29,0.82)}.token-part{display:block;height:42px;border-radius:6px}.header-part{background:repeating-linear-gradient(90deg,#2a9d8f 0 16px,#49b7ab 16px 26px)}.payload-part{background:repeating-linear-gradient(90deg,#f4a340 0 12px,#f7bd6d 12px 24px)}.signature-part{background:repeating-linear-gradient(90deg,#376c9f 0 18px,#5789bd 18px 30px)}.token-dot{width:10px;height:10px;border-radius:50%;background:var(--ink)}.claim-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid rgba(20,33,43,0.12);border-radius:var(--radius);overflow:hidden;background:var(--panel);box-shadow:var(--shadow)}.claim-grid span,.claim-grid strong{padding:11px 12px;font-size:0.9rem}.claim-grid span{background:var(--panel-soft);color:var(--muted);font-weight:800}.claim-grid strong{border-left:1px solid var(--line)}.workspace,.info-band{width:min(var(--content-width),calc(100% - 36px));margin-right:auto;margin-left:auto}.workspace{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,0.9);box-shadow:var(--shadow);overflow:hidden}:root[data-theme="dark"] .workspace{background:rgba(17,25,29,0.74)}.mode-tabs{display:flex;justify-content:center;gap:6px;padding:6px;border-bottom:1px solid var(--line);background:transparent}.tab,.small-button,.icon-button,select{border:1px solid var(--line);border-radius:7px;background:var(--panel);color:var(--ink);font-weight:800}.tab{min-width:112px;padding:0 14px;font-size:0.92rem}.tab.is-active{border-color:var(--teal);background:var(--teal);color:white}.panel-grid{display:none;grid-template-columns:minmax(360px,1fr) minmax(340px,1fr);gap:1px;background:var(--line)}.panel-grid.is-active{display:grid}.tool-panel{min-width:0;padding:clamp(14px,1.8vw,18px);background:var(--panel)}#decode-panel .input-panel{grid-column:1;grid-row:1 / span 4}#decode-panel .tool-panel:not(.input-panel){grid-column:2}.output-panel{grid-row:span 2}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:8px}.panel-heading h2,.info-band h2,.privacy-band h2{margin:0;font-size:clamp(0.96rem,1.2vw,1.08rem)}.button-row{display:flex;gap:8px}.small-button,.icon-button{padding:0 12px;font-size:0.9rem}.icon-button{width:36px;padding:0}.small-button:hover,.icon-button:hover,.tab:hover,select:hover{border-color:var(--teal)}.status-stack{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.status-pill{display:inline-flex;align-items:center;min-height:28px;padding:3px 9px;border:1px solid var(--line);border-radius:999px;background:var(--panel-soft);color:var(--muted);font-size:0.78rem;font-weight:800}.status-pill.good{border-color:rgba(22,132,93,0.24);background:rgba(22,132,93,0.1);color:var(--green)}.status-pill.warn{border-color:rgba(244,163,64,0.36);background:rgba(244,163,64,0.14);color:#9a5c05}.status-pill.bad{border-color:rgba(199,68,68,0.26);background:rgba(199,68,68,0.1);color:var(--red)}.json-box,.token-output{min-height:104px;max-height:420px;margin:0;overflow:auto;border:1px solid var(--line);border-radius:var(--radius);background:var(--code-bg,#ffffff);color:var(--ink);padding:12px;line-height:1.48;font-size:0.84rem;white-space:pre-wrap;word-break:break-word}:root[data-theme="dark"] .json-box,:root[data-theme="dark"] .token-output{--code-bg:#070b0e;color:#e9f5f3}.input-panel textarea{min-height:360px}.verification-panel textarea{min-height:92px}.claim-list{display:grid;gap:8px}#decode-panel .claim-list{max-height:150px;overflow:auto}.claim-row{display:grid;grid-template-columns:86px minmax(0,1fr);gap:12px;align-items:start;padding:11px 12px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel-soft)}.claim-row strong{font-size:0.84rem}.claim-row span{color:var(--muted);line-height:1.45;font-size:0.92rem;word-break:break-word}.switch{display:inline-flex;align-items:center;gap:8px;color:var(--muted);font-weight:800;font-size:0.9rem;white-space:nowrap}.switch input{width:16px;height:16px;accent-color:var(--teal)}select{padding:0 10px;font-size:0.92rem}.hint{margin:10px 0 0;color:var(--muted);line-height:1.5;font-size:0.92rem}.info-band{display:grid;grid-template-columns:minmax(260px,0.8fr) minmax(320px,1.4fr);gap:26px;padding:34px 0}.info-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:var(--line)}.info-grid article{padding:18px;background:var(--panel)}.info-grid h3{margin:0 0 8px;font-size:1.05rem}.info-grid p,.privacy-band p{margin:0;color:var(--muted);line-height:1.5;font-size:0.92rem}.privacy-band{display:flex;align-items:center;justify-content:flex-end;gap:24px;width:100%;margin:0;padding:22px max(18px,calc((100vw - var(--content-width)) / 2));border-radius:0;background:#020304;color:var(--page);text-align:right;backdrop-filter:none}.privacy-band p{max-width:660px;color:rgba(255,255,255,0.78)}:root[data-theme="dark"] .privacy-band{background:#000000;color:var(--ink)}.heart-icon{color:#e84855}.credit-line{display:inline-flex;align-items:center;justify-content:flex-end;gap:8px;flex-wrap:wrap;font-size:clamp(0.88rem,1.2vw,0.98rem);font-weight:500}.privacy-band a{color:var(--mint);font-weight:500;text-decoration:underline;text-underline-offset:3px}.toast{position:fixed;right:18px;bottom:18px;transform:translateY(14px);opacity:0;pointer-events:none;max-width:min(360px,calc(100vw - 36px));padding:12px 14px;border-radius:var(--radius);background:var(--ink);color:white;box-shadow:var(--shadow);transition:opacity 180ms ease,transform 180ms ease}.toast.show{transform:translateY(0);opacity:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media (max-width:980px){.hero,.info-band{grid-template-columns:1fr}.hero{width:min(var(--content-width),calc(100% - 36px))}.hero-visual{order:2;min-height:200px}.panel-grid{grid-template-columns:1fr}.input-panel,.verification-panel,.output-panel{grid-row:auto}.info-grid{grid-template-columns:1fr}}@media (max-width:680px){.topbar{position:static;align-items:flex-start;flex-direction:column;padding-top:16px;padding-bottom:16px}.nav{width:100%;justify-content:space-between}.topbar-actions{width:100%;align-items:stretch;flex-direction:column}.theme-toggle{width:100%}.hero{padding-top:28px}.token-strip{grid-template-columns:1fr}.token-dot{justify-self:center}.claim-grid{grid-template-columns:1fr 1fr}.panel-heading,.privacy-band{align-items:flex-start;flex-direction:column}.privacy-band,.credit-line{align-items:flex-end;text-align:right}.button-row{width:100%}.icon-button{flex:1}}