:root{ color-scheme:light dark; --paper:#F4EEE2; --surface:#FFFCF6; --sunk:#EDE5D3; --ink:#1E1A14; --muted:#5F574A; --line:#DDD1BC; --brand:#0F4C47; --on-brand:#FFFFFF; --brand-soft:#DDEBE5; --cta:#E8940F; --cta-hover:#D2830A; --cta-ink:#1E1A14; --ok:#1E6B4A; --err:#A8321C; --shadow:0 1px 2px rgba(30,26,20,.06),0 10px 30px rgba(30,26,20,.07); --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Noto Serif",Georgia,serif; --sans:system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans Devanagari",sans-serif; } @media (prefers-color-scheme:dark){ :root{ --paper:#12100C; --surface:#1B1812; --sunk:#15120D; --ink:#F3ECDF; --muted:#B5AA96; --line:#342D21; --brand:#6CC8BA; --on-brand:#0B1F1D; --brand-soft:#17302D; --cta:#F0A62B; --cta-hover:#F8B84A; --cta-ink:#1A1408; --ok:#74D3A4; --err:#FF9C86; --shadow:0 1px 2px rgba(0,0,0,.4),0 10px 30px rgba(0,0,0,.35); } } *{box-sizing:border-box} [hidden]{display:none!important} html{scroll-behavior:smooth;-webkit-text-size-adjust:100%} body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased} h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.15;letter-spacing:-.015em;margin:0} p{margin:0} a{color:var(--brand)} .wrap{max-width:1080px;margin:0 auto;padding:0 20px} .sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap} :focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px} .top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 0} .logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-family:var(--serif);font-weight:700;font-size:21px;letter-spacing:-.01em} .mark{width:34px;height:34px;flex:none} .mk-bg{fill:var(--brand)} .mk-fg{fill:var(--on-brand)} .nav{display:flex;align-items:center;gap:20px;font-size:15px} .nav a.plain{color:var(--muted);text-decoration:none;font-weight:500} .nav a.plain:hover{color:var(--ink)} .nav .btn{padding:9px 16px;font-size:15px;min-height:40px} .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:50px;padding:12px 20px;border:0;border-radius:12px;font:inherit;font-weight:700;font-size:16px;cursor:pointer;text-decoration:none;background:var(--cta);color:var(--cta-ink);transition:background .15s,transform .1s,box-shadow .15s} .btn:hover{background:var(--cta-hover)} .btn:active{transform:scale(.98)} .btn:disabled{opacity:.7;cursor:progress} .btn.block{width:100%} .btn.line{background:transparent;color:var(--ink);border:1.5px solid var(--line)} .btn.line:hover{background:var(--sunk);border-color:var(--muted)} .btn.small{min-height:44px;padding:10px 16px;font-size:15px} .hero{display:grid;gap:28px;padding:12px 0 40px} .eyebrow{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:14px} .hero h1{font-size:clamp(34px,8.2vw,54px)} .lede{margin-top:16px;font-size:18px;color:var(--muted);max-width:34em} .checks{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px} .checks li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px} .checks svg{flex:none;margin-top:3px;width:18px;height:18px;stroke:var(--ok);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round} .tool{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow)} .tool h2{font-size:24px;margin-bottom:4px} .tool .sub{color:var(--muted);font-size:15px;margin-bottom:6px} .field{margin-top:18px} .field>label:not(.drop),.field>legend{display:block;font-weight:600;font-size:15px;margin:0 0 7px;padding:0} .hint{display:block;font-weight:400;color:var(--muted);font-size:13.5px;margin-top:2px} fieldset{border:0;margin:0;padding:0;min-width:0} input[type=text],input[type=password],textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--paper);border:1.5px solid var(--line);border-radius:12px;padding:13px 14px;min-height:50px} textarea{resize:vertical;min-height:84px} input::placeholder,textarea::placeholder{color:var(--muted);opacity:.75} input:focus,textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px var(--brand-soft)} .drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;min-height:132px;padding:18px;border:2px dashed var(--line);border-radius:14px;background:var(--paper);cursor:pointer;transition:border-color .15s,background .15s} .drop:hover,.drop:focus-within{border-color:var(--brand);background:var(--brand-soft)} .drop svg{width:30px;height:30px;stroke:var(--brand);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round} .drop strong{font-size:16px} .drop span{font-size:13.5px;color:var(--muted)} .preview{display:block;width:100%;max-height:340px;object-fit:contain;margin-top:12px;border-radius:12px;background:var(--sunk);border:1px solid var(--line)} .seg{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;padding:5px;background:var(--sunk);border-radius:13px;border:1px solid var(--line)} .seg label{margin:0;display:block} .seg span{display:flex;align-items:center;justify-content:center;min-height:44px;border-radius:9px;font-weight:600;font-size:15px;cursor:pointer;color:var(--muted);transition:background .15s,color .15s} .seg input:checked+span{background:var(--brand);color:var(--on-brand);box-shadow:0 1px 3px rgba(0,0,0,.2)} .seg input:focus-visible+span{outline:3px solid var(--brand);outline-offset:2px} .go{margin-top:22px} .status{min-height:22px;margin-top:12px;font-size:14.5px;color:var(--muted)} .status.err{color:var(--err);font-weight:600} .status.ok{color:var(--ok);font-weight:600} .bar{height:4px;border-radius:4px;background:var(--sunk);overflow:hidden;margin-top:14px} .bar i{display:block;height:100%;width:38%;background:var(--cta);border-radius:4px;animation:slide 1.1s ease-in-out infinite} @keyframes slide{0%{transform:translateX(-110%)}100%{transform:translateX(280%)}} .spin{width:18px;height:18px;border:3px solid currentColor;border-right-color:transparent;border-radius:50%;animation:rot .75s linear infinite} @keyframes rot{to{transform:rotate(360deg)}} .result{margin-top:22px;padding-top:22px;border-top:1px solid var(--line);animation:rise .4s ease both} .result h3{font-size:20px;margin-bottom:12px} .bubble{background:var(--brand-soft);border:1px solid var(--line);border-radius:4px 16px 16px 16px;padding:16px 18px;font-size:16.5px;line-height:1.6;white-space:pre-wrap;word-break:break-word} .bubble strong{font-weight:700} .tags{margin-top:12px;font-size:14.5px;color:var(--muted);word-break:break-word} .tips{margin-top:14px;padding:12px 14px;border-radius:12px;background:var(--sunk);font-size:14.5px} .tips b{display:block;margin-bottom:4px} .tips ul{margin:0;padding-left:20px} .actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px} .actions .wide{grid-column:1/-1} .note{margin-top:14px;font-size:13.5px;color:var(--muted)} .band{padding:44px 0;border-top:1px solid var(--line)} .band h2{font-size:clamp(26px,5.6vw,36px);margin-bottom:10px} .band .intro{color:var(--muted);font-size:17px;max-width:36em;margin-bottom:26px} .grid3{display:grid;gap:14px} .card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:20px} .card h3{font-size:19px;margin:12px 0 6px} .card p{color:var(--muted);font-size:15.5px} .card .ico{width:44px;height:44px;border-radius:12px;background:var(--brand-soft);display:flex;align-items:center;justify-content:center} .card .ico svg{width:24px;height:24px;stroke:var(--brand);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round} .cta-band{margin:8px 0 48px;padding:28px 22px;border-radius:20px;background:var(--brand);color:var(--on-brand)} .cta-band h2{font-size:26px;margin-bottom:8px} .cta-band p{opacity:.92;margin-bottom:16px} .cta-band .btn{background:var(--cta);color:var(--cta-ink)} details{border-top:1px solid var(--line);padding:4px 0} details:last-of-type{border-bottom:1px solid var(--line)} summary{cursor:pointer;font-weight:600;font-size:17px;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:12px;align-items:center} summary::-webkit-details-marker{display:none} summary::after{content:"+";font-size:24px;line-height:1;color:var(--brand);flex:none} details[open] summary::after{content:"\2212"} details p{color:var(--muted);padding:0 0 16px;max-width:42em} footer{border-top:1px solid var(--line);padding:26px 0 40px;color:var(--muted);font-size:14px;display:grid;gap:6px} .rise{animation:rise .55s ease both} .rise.d1{animation-delay:.08s} .rise.d2{animation-delay:.16s} @keyframes rise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}} .toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:11px 18px;border-radius:999px;font-weight:600;font-size:14.5px;box-shadow:var(--shadow);z-index:20;animation:rise .25s ease both} @media (min-width:640px){ .grid3{grid-template-columns:repeat(3,1fr)} .actions{grid-template-columns:repeat(4,auto)} .actions .wide{grid-column:auto} } @media (min-width:900px){ .hero{grid-template-columns:1.05fr 1fr;gap:56px;align-items:start;padding:36px 0 64px} .hero-copy{padding-top:24px;position:sticky;top:24px} .tool{padding:28px} .cta-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:32px 36px} .cta-band p{margin:0} } @media (max-width:560px){ .nav a.plain{display:none} } @media (prefers-reduced-motion:reduce){ *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important} }