*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",sans-serif;background:#f7f8fc;color:#1b2440}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}header{background:#fff;border-bottom:1px solid #e5e9f1;position:sticky;top:0;z-index:2}.top{max-width:1120px;margin:auto;padding:15px 22px;display:flex;align-items:center;justify-content:space-between;gap:12px}.logo{font-weight:850;color:#4555cf;font-size:24px}.nav{display:flex;gap:16px;align-items:center}.nav a{font-size:14px;color:#52617c}.lang{border:1px solid #cdd4e8;border-radius:9px;padding:7px 12px;background:#fff;color:#2b3a63}main{max-width:1120px;margin:auto;padding:24px 22px 48px}.hero{text-align:center;padding:35px 0 26px}.hero h1{font-size:clamp(30px,4.5vw,48px);line-height:1.2;margin:0 0 12px;letter-spacing:-.035em}.hero p{color:#61708b;margin:0 0 20px}.search{max-width:620px;width:100%;padding:15px 18px;border:1px solid #cbd4e6;border-radius:13px;box-shadow:0 5px 18px #26346109}.sectiontitle{font-size:20px;margin:26px 0 16px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(235px,1fr));gap:15px}.tile,.panel{background:white;border:1px solid #e2e6f1;border-radius:16px;box-shadow:0 6px 25px #26346107}.tile{padding:22px;display:block;transition:transform .15s,border-color .15s}.tile:hover{transform:translateY(-2px);border-color:#7c89e4}.emoji{font-size:27px}.tile h3{font-size:17px;margin:10px 0 3px}.tile p{color:#6b7890;font-size:13px;margin:0}.panel{padding:24px;margin:22px 0}.toolpage{max-width:820px;margin:auto}.back{display:inline-block;margin:18px 0;color:#4555cf}.muted{color:#63718a}.formlabel{font-size:14px;font-weight:650;display:block;margin-top:14px}.field{display:block;width:100%;border:1px solid #cbd4e5;border-radius:10px;padding:11px 12px;margin:7px 0 12px;background:white;color:#1b2440}.field:focus{outline:2px solid #a8b2ff;outline-offset:1px}textarea.field{min-height:160px;resize:vertical}.actions{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.primary,.secondary{border:0;border-radius:10px;padding:10px 16px;font-weight:600}.primary{background:#4555cf;color:white}.secondary{background:#edf0ff;color:#3547bc}.result{white-space:pre-wrap;overflow-wrap:anywhere;border-radius:11px;padding:15px;background:#f2f5ff;min-height:50px}.preview{max-width:100%;max-height:360px;object-fit:contain;display:block;margin:14px auto}.note{background:#f1f4fb;padding:14px;border-radius:10px;font-size:14px;color:#4b5c79}.check{display:flex;align-items:center;gap:9px;margin:8px 0}.check input{accent-color:#4555cf}footer{border-top:1px solid #e3e7ef;text-align:center;color:#77839a;padding:25px 15px;font-size:13px}.footlinks{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:7px}@media(max-width:600px){.nav a:not(.lang){display:none}.panel{padding:18px}.hero{padding:23px 0}.grid{grid-template-columns:1fr 1fr;gap:9px}.tile{padding:15px}.tile h3{font-size:14px}.tile p{font-size:12px}}@media(max-width:380px){.grid{grid-template-columns:1fr}}
/* V3 visual system */
:root{--ink:#16223a;--accent:#635bff;--line:#e8eaf3;--sub:#68758c}body{background:linear-gradient(180deg,#f4f5ff 0,#fafbff 420px,#f8f9fc 100%);color:var(--ink)}header{background:#ffffffdd;backdrop-filter:blur(18px);border-bottom:1px solid #e9eaf5}.top{max-width:1200px;padding:18px 28px}.logo{color:#25244a;letter-spacing:-.045em}.logo-mark{display:inline-grid;place-items:center;width:34px;height:34px;background:linear-gradient(135deg,#7366ff,#4d9af6);color:white;border-radius:11px;margin-right:7px;box-shadow:0 7px 17px #645bff35}.nav{gap:25px}.nav a{font-weight:600}.lang{border-radius:100px!important;padding:8px 16px!important;background:#f5f5ff!important;border-color:#e4e3ff!important;color:#4943ba!important}main{max-width:1200px;padding:24px 28px 65px}.hero{position:relative;overflow:hidden;text-align:left;padding:66px 58px 54px;margin:22px 0 36px;background:radial-gradient(circle at 91% 20%,#d9d3ff 0,transparent 31%),radial-gradient(circle at 73% 96%,#d9f1ff 0,transparent 34%),linear-gradient(130deg,#fff,#f2f0ff);border:1px solid #e9e5ff;border-radius:30px;box-shadow:0 18px 55px #34328b0c}.eyebrow{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:800;color:#6157dd;margin:0 0 16px}.hero h1{max-width:670px;font-size:clamp(35px,5.2vw,62px);line-height:1.09;letter-spacing:-.055em;margin:0 0 18px}.hero p{font-size:16px;max-width:590px;line-height:1.8}.hero .search-wrap{position:relative;max-width:640px;margin-top:26px}.search{max-width:none;border:1px solid #e0e1f0;padding:17px 22px 17px 50px;border-radius:15px;box-shadow:0 9px 28px #37337713;background:white}.search-symbol{position:absolute;left:18px;top:15px;font-size:21px;color:#817cae}.hero-pills{display:flex;gap:10px;flex-wrap:wrap;margin-top:21px}.hero-pills span{border:1px solid #e2e1f3;border-radius:30px;background:#ffffffa8;color:#59647b;font-size:12px;padding:7px 12px;font-weight:600}.section-head{display:flex;align-items:end;justify-content:space-between;gap:15px;margin:0 0 17px}.sectiontitle{font-size:25px;letter-spacing:-.035em;margin:0}.section-sub{color:#758096;font-size:13px}.filters{display:flex;gap:9px;flex-wrap:wrap;margin:0 0 24px}.filter{border:1px solid #e2e5f0;background:white;color:#5c6780;border-radius:50px;padding:9px 16px;font-size:13px;font-weight:650;transition:.2s}.filter:hover,.filter.active{background:#625bfa;border-color:#625bfa;color:white}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.tile{position:relative;min-height:166px;border:1px solid #e8eaf3;border-radius:20px;padding:23px;box-shadow:0 7px 25px #333d6607;transition:transform .2s,box-shadow .2s,border-color .2s}.tile:hover{transform:translateY(-4px);border-color:#b9b3ff;box-shadow:0 15px 36px #4c47a31b}.tile .emoji{display:grid;place-items:center;width:48px;height:48px;background:linear-gradient(145deg,#f0eeff,#e8f2ff);border-radius:14px;font-size:24px}.tile h3{margin:16px 0 4px;font-size:17px;letter-spacing:-.02em}.tile p{font-size:13px}.tile:after{content:'↗';position:absolute;right:21px;top:23px;color:#a4a9be;font-size:20px}.panel{border-color:#e9eaf2;border-radius:21px;box-shadow:0 10px 30px #313b6209}.why{margin-top:38px;padding:30px 35px;background:linear-gradient(120deg,#fefeff,#f2f3ff)}.why h2{letter-spacing:-.035em}.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:22px}.why-item{background:white;border:1px solid #e8eafa;padding:18px;border-radius:14px}.why-item strong{display:block;margin-bottom:6px}.why-item span{font-size:13px;color:#69758c}.toolpage{max-width:850px}.toolpage h1{font-size:clamp(31px,4vw,45px);letter-spacing:-.05em;margin:12px 0 8px}.back{color:#625bdf;font-weight:650}.toolpage>.panel{padding:30px}.primary{background:linear-gradient(125deg,#655aff,#4f65e8);box-shadow:0 5px 14px #655aff25}.primary:hover{filter:brightness(1.07)}.secondary{background:#efedff;color:#534ac9}.field{border-color:#dfe2ee}.field:focus,.search:focus{outline:3px solid #d9d5ff;border-color:#8176fa}.result{background:#f4f5ff;border:1px solid #e7e8fa}.note{background:#f5f6ff}footer{background:#fff}.tile[hidden]{display:none!important}@media(max-width:850px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding:47px 32px}.why-grid{grid-template-columns:1fr}}@media(max-width:600px){.top{padding:13px 17px}.logo{font-size:21px}main{padding:14px 16px 42px}.hero{margin:10px 0 30px;padding:38px 23px;border-radius:23px}.hero h1{font-size:37px}.hero p{font-size:14px}.section-head{align-items:start}.sectiontitle{font-size:22px}.grid{gap:11px}.tile{min-height:155px;padding:16px;border-radius:16px}.tile .emoji{width:42px;height:42px;font-size:22px}.tile h3{font-size:15px}.tile:after{right:14px;top:15px}.filter{padding:8px 12px}.why{padding:22px}.toolpage>.panel{padding:19px}.nav{gap:8px}}@media(max-width:370px){.grid{grid-template-columns:1fr}}

/* V4 accessibility and usability */
.theme-toggle{border:1px solid #dcdff0;border-radius:50%;background:#f3f2ff;color:#5148b8;width:38px;height:38px;font-size:21px;display:grid;place-items:center}
:focus-visible{outline:3px solid #8278f8!important;outline-offset:3px}
.recent-section{margin:0 0 28px;padding:18px 20px;border:1px solid #e4e6f2;border-radius:18px;background:#fff}
.recent-section h2{font-size:16px;margin:0 0 10px}.recent-links{display:flex;flex-wrap:wrap;gap:8px}.recent-links a{border:1px solid #e1e3f2;border-radius:24px;padding:7px 13px;font-size:13px;background:#f8f8ff}
.dropzone{border:2px dashed #b9b9ed;border-radius:15px;padding:20px;text-align:center;background:#f9f8ff;color:#555b80;cursor:pointer;margin:12px 0}
.dropzone.dragover{background:#eae7ff;border-color:#655aff}.dropzone strong{display:block;color:#34365e}.dropzone small{display:block;margin-top:5px}
.tool-feedback{color:#5c6680;font-size:13px}.preview{border-radius:12px;box-shadow:0 6px 20px #151a3a12}
html[data-theme="dark"]{color-scheme:dark}html[data-theme="dark"] body{background:linear-gradient(180deg,#15172b,#101322);color:#e9ebff}
html[data-theme="dark"] header,html[data-theme="dark"] footer{background:#1a1d31;border-color:#32364d}
html[data-theme="dark"] .hero{background:radial-gradient(circle at 90% 10%,#37305e,transparent 35%),linear-gradient(130deg,#22263e,#1d2139);border-color:#393b5d}
html[data-theme="dark"] .tile,html[data-theme="dark"] .panel,html[data-theme="dark"] .why-item,html[data-theme="dark"] .recent-section{background:#20243b;border-color:#363a54}
html[data-theme="dark"] .why{background:#20243b}html[data-theme="dark"] .field,html[data-theme="dark"] .search,html[data-theme="dark"] .filter,html[data-theme="dark"] .lang,html[data-theme="dark"] .theme-toggle{background:#282c46!important;color:#f1f2ff!important;border-color:#454966!important}
html[data-theme="dark"] .filter.active{background:#635bfa!important}html[data-theme="dark"] .result,html[data-theme="dark"] .note,html[data-theme="dark"] .dropzone,html[data-theme="dark"] .recent-links a{background:#292d48;color:#e7e9ff;border-color:#454966}
html[data-theme="dark"] .logo,html[data-theme="dark"] .dropzone strong{color:#f1efff}
html[data-theme="dark"] .muted,html[data-theme="dark"] .section-sub,html[data-theme="dark"] .tile p,html[data-theme="dark"] .hero p,html[data-theme="dark"] .nav a,html[data-theme="dark"] .why-item span{color:#b0b9d4}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media(max-width:600px){.theme-toggle{width:34px;height:34px;flex-shrink:0}}

/* V5 editorial visual refinement */
:root{--v5-accent:#5449e8}body{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:#f8f9fd}.top{max-width:1160px}.hero{background:radial-gradient(ellipse at 93% 30%,#ded9ff 0,transparent 38%),radial-gradient(ellipse at 73% 92%,#e0f4f9 0,transparent 35%),#f4f3ff;border-color:#e7e4fa;box-shadow:none;min-height:340px}.hero h1{font-weight:850;max-width:730px}.hero .search-wrap{max-width:670px}.search{box-shadow:0 12px 34px #3c36831a}.section-head{margin-top:10px}.tile{box-shadow:0 4px 15px #1f2c5207;min-height:170px}.tile:hover{transform:translateY(-3px);box-shadow:0 18px 38px #34317416}.tile .emoji{background:#f0eeff}.tile[data-category=text] .emoji{background:#eaf5ff}.tile[data-category=date] .emoji{background:#fff1e7}.tile[data-category=dev] .emoji{background:#eaf7ef}.filters{position:relative}.filter.active{background:#5449e8;border-color:#5449e8}.featured-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 28px;padding:15px 20px;border:1px solid #e8e8f4;border-radius:17px;background:white}.featured-bar strong{font-size:14px}.featured-bar span{font-size:13px;color:#737e94}.featured-bar a{color:#5449e8;font-weight:750;font-size:13px;white-space:nowrap}.tile .favorite{position:absolute;right:14px;bottom:13px;border:0;background:transparent;font-size:19px;color:#a2a6bd;padding:5px;z-index:1}.tile .favorite[aria-pressed=true]{color:#e6a62c}.tile:after{top:18px}.favorites-section{margin:0 0 26px}.favorites-section h2{font-size:18px}.favorites-links{display:flex;gap:9px;flex-wrap:wrap}.favorites-links a{padding:9px 14px;border:1px solid #e1e2f0;border-radius:12px;background:white;font-size:13px;font-weight:650}.hero-pills span{background:#ffffffb5}html[data-theme=dark] .featured-bar,html[data-theme=dark] .favorites-links a{background:#20243b;border-color:#363a54;color:#e9ebff}html[data-theme=dark] .featured-bar span{color:#b0b9d4}@media(max-width:600px){.hero{min-height:0}.featured-bar{align-items:flex-start;flex-direction:column;gap:6px}.tile .favorite{right:8px;bottom:8px}.tile{padding-bottom:39px}}

/* V6 usability and accessibility */
.skip-link{position:absolute;left:14px;top:-80px;z-index:100;background:#fff;color:#29234f;padding:12px 16px;border-radius:10px;box-shadow:0 6px 25px #0002}.skip-link:focus{top:12px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #7c69ef;outline-offset:3px}.tile[hidden]{display:none!important}.related{margin-top:28px}.related a{display:inline-flex;margin:8px 9px 0 0;padding:9px 13px;border:1px solid #dedff0;border-radius:10px;font-size:13px;text-decoration:none}.related a:hover{background:#eeedff}.related p{color:#778197;font-size:13px}html[data-theme=dark] .related a{border-color:#454965;color:#eceeff}html[data-theme=dark] .related a:hover{background:#353959}@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* ToolNest final design system */
:root{--tn-ink:#18223a;--tn-muted:#68758e;--tn-purple:#6656d9;--tn-line:#e8eaf3;--tn-surface:#fff}
body{background:#f8f9fd;color:var(--tn-ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;letter-spacing:-.012em}
header{background:rgba(255,255,255,.91);backdrop-filter:blur(16px);border-color:var(--tn-line)}
.top{max-width:1180px;padding:17px 25px}.logo{display:inline-flex;align-items:center;gap:11px;color:#1b2440;font-size:22px;font-weight:800;letter-spacing:-.055em}.brand-icon{height:38px;width:38px;flex:none}.nav{gap:20px}.nav a{font-weight:550}.nav a:hover{color:#6757e6}
main{max-width:1180px;padding:26px 25px 64px}.hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 85% 12%,#dcd5ff 0%,transparent 47%),linear-gradient(125deg,#f2efff 0%,#edf7ff 100%);border:1px solid #e8e6fc;border-radius:25px;padding:62px 32px 58px;margin:10px 0 31px}
.hero h1{font-size:clamp(35px,5.4vw,60px);font-weight:820;letter-spacing:-.065em;line-height:1.11;margin:0 auto 17px;max-width:790px}.hero p{font-size:16px;line-height:1.7;color:#5e6d87;margin:0 auto 24px;max-width:650px}.eyebrow{font-weight:800;letter-spacing:.16em;font-size:11px;color:#6556cb;margin-bottom:16px}.hero-pills{margin-top:20px}
.search-wrap{max-width:650px;margin:auto}.search{background:#fff;border:1px solid #dfe3f2;border-radius:15px;padding:17px 19px;box-shadow:0 12px 28px #42418a12;font-size:15px}.search:focus{outline:3px solid #c9c3ff;outline-offset:2px}
.sectiontitle,.section-head h2{letter-spacing:-.04em;font-size:23px}.grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.tile{position:relative;min-height:174px;border-radius:18px;padding:23px;border:1px solid var(--tn-line);box-shadow:0 4px 18px #28345205;transition:transform .18s,border-color .18s,box-shadow .18s}.tile:hover{transform:translateY(-3px);border-color:#aaa1f5;box-shadow:0 14px 30px #34316c12}.tile:focus-visible{outline:3px solid #9b8eff;outline-offset:3px}.emoji{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:13px;background:#f0edff;font-size:24px}.tile h3{font-size:17px;letter-spacing:-.025em;margin:13px 0 5px}.tile p{font-size:13px;line-height:1.5}.filters{gap:9px}.filter{border-radius:999px}.filter.active{background:#6656db;color:#fff;border-color:#6656db}.featured-bar{border-radius:15px}.panel{border-radius:20px;border-color:var(--tn-line);box-shadow:0 9px 32px #2b305009}.toolpage{max-width:860px}.toolpage h1{letter-spacing:-.05em}.primary{background:#6456df;border-radius:11px;padding:12px 19px}.primary:hover{background:#4f42c6}.secondary{border-radius:11px}.field{border-radius:12px;padding:13px}.field:focus{outline:3px solid #d0caff;border-color:#8479e8}.result{white-space:pre-wrap;overflow-wrap:anywhere}.theme-toggle{border-radius:10px}.favorite{border-radius:9px}
@media(max-width:800px){.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding:45px 20px}.nav{gap:10px}.top{padding:13px 17px}}
@media(max-width:520px){main{padding:15px 14px 40px}.hero{border-radius:19px;padding:37px 18px}.hero h1{font-size:34px}.hero p{font-size:14px}.grid{gap:10px}.tile{padding:16px;min-height:160px}.tile h3{font-size:15px}.emoji{width:40px;height:40px}.nav a:not(.lang){display:none}.logo{font-size:19px}.brand-icon{height:33px;width:33px}.top{padding:12px 14px}}
html[data-theme="dark"] header{background:rgba(24,28,44,.93)}html[data-theme="dark"] .logo{color:#f4f3ff}html[data-theme="dark"] .hero{background:radial-gradient(ellipse at 80% 10%,#47406e,transparent 60%),linear-gradient(120deg,#2b2d4c,#263c54);border-color:#454564}html[data-theme="dark"] .hero p{color:#c6cce2}html[data-theme="dark"] .tile{border-color:#41445b}html[data-theme="dark"] .emoji{background:#39365c}