:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#17131f;background:#fff;font-synthesis:none;text-rendering:optimizeLegibility}*{box-sizing:border-box}body{margin:0;background:#fff}.text-number-tool{--purple-950:#2e155f;--purple-900:#3c1d7d;--purple-800:#4d28a6;--purple-700:#5d35cc;--purple-600:#6f4be8;--purple-500:#815ff0;--purple-400:#9b7cf4;--purple-300:#bca9f8;--purple-200:#d9cffb;--purple-100:#eee9ff;--purple-50:#f8f6ff;--ink:#17131f;--muted:#706a79;--border:#e6e1eb;--shadow:0 12px 34px rgba(63,36,118,.075);--shadow-hover:0 18px 42px rgba(65,34,135,.12);width:100%;overflow:hidden;background:#fff;color:var(--ink)}.text-number-tool *,.text-number-tool *:before,.text-number-tool *:after{box-sizing:border-box}.text-number-tool button,.text-number-tool input,.text-number-tool select{font:inherit}.text-number-tool button{cursor:pointer}.text-number-tool button:disabled{cursor:not-allowed}.text-number-tool button:focus-visible,.text-number-tool a:focus-visible,.text-number-tool input:focus-visible,.text-number-tool select:focus-visible,.text-number-tool summary:focus-visible,.text-number-tool [role=button]:focus-visible{outline:3px solid rgba(129,95,240,.24);outline-offset:2px}
.hero-section{padding:48px 20px 0;text-align:center;background:linear-gradient(180deg,#fff 0%,#fff 78%,#fcfbff 100%)}.hero-copy{width:min(850px,100%);margin:0 auto 26px}.hero-eyebrow{display:inline-block;margin-bottom:10px;color:var(--purple-700);font-size:12px;font-weight:800;letter-spacing:.11em}.hero-copy h1{margin:0;color:#18141e;font-size:clamp(42px,5vw,52px);line-height:1.06;font-weight:820;letter-spacing:-1.8px}.hero-copy p{width:min(760px,100%);margin:14px auto 0;color:#6e6875;font-size:17px;line-height:1.65}.tool-shell{width:min(1200px,100%);margin:0 auto;padding:28px;text-align:left;background:#fff;border:1px solid #e9e5ed;border-radius:22px;box-shadow:var(--shadow)}
.upload-shell{padding:28px}.upload-zone{min-height:250px;padding:36px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;border:1.5px dashed #c9bfda;border-radius:17px;background:#fdfcff;text-align:center;cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease}.upload-zone:hover,.upload-zone.is-dragging{border-color:var(--purple-500);background:var(--purple-50)}.upload-zone.is-dragging{transform:translateY(-1px)}.upload-kicker,.workspace-label{color:var(--purple-700);font-size:10px;font-weight:850;letter-spacing:.09em;text-transform:uppercase}.upload-zone strong{margin-top:5px;color:#2b2630;font-size:21px;line-height:1.3}.upload-zone>span:not(.upload-kicker){color:#817a88;font-size:14px}.upload-zone em{margin-top:5px;padding:5px 9px;color:#8c8394;background:#f1edf5;border-radius:7px;font-size:11px;font-style:normal;font-weight:700}.upload-note{margin:14px 0 0;color:#8b8492;font-size:13px;text-align:center}.loading-shell{min-height:140px;display:flex;flex-direction:column;justify-content:center}.loading-shell strong{margin-top:8px}.inline-error{margin-top:18px;padding:12px 14px;color:#8a3b3b;background:#fff5f5;border:1px solid #f1cccc;border-radius:10px}
.file-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:15px 16px;background:#fbf9ff;border:1px solid #ece5f8;border-radius:13px}.file-bar>div{min-width:0;display:flex;flex-direction:column;gap:5px}.file-bar strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px}.text-button{padding:8px 4px;color:var(--purple-700);background:transparent;border:0;font-weight:750}.controls-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}.field{display:flex;flex-direction:column;gap:7px}.field>span{color:#4c4552;font-size:12px;font-weight:780}.field select{width:100%;min-height:44px;padding:0 12px;color:#2f2934;background:#fff;border:1px solid #dcd6e2;border-radius:10px}.field select:focus{border-color:var(--purple-500);box-shadow:0 0 0 3px rgba(111,75,232,.09);outline:none}
.option-panel{margin:18px 0 0;padding:13px 15px 14px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;background:#fcfbff;border:1px solid #ebe5f4;border-radius:12px}.option-panel legend{padding:0 6px;color:#544d5a;font-size:12px;font-weight:800}.check-row{min-height:60px;padding:10px 11px;display:flex;align-items:flex-start;gap:10px;background:#fff;border:1px solid #eee9f3;border-radius:10px;cursor:pointer}.check-row input{width:18px;height:18px;margin:2px 0 0;flex:none;accent-color:var(--purple-600)}.check-row span{display:block}.check-row strong{display:block;color:#3c3543;font-size:12px}.check-row small{display:block;margin-top:3px;color:#918998;font-size:11px;line-height:1.45}
.column-section{margin-top:22px;padding-top:20px;border-top:1px solid #eeeaf1}.workspace-heading{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:12px}.workspace-heading h2{margin:4px 0 0;color:var(--purple-950);font-size:20px;line-height:1.2}.workspace-help{color:#918998;font-size:12px}.column-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.column-card{min-height:112px;padding:13px;position:relative;display:block;background:#fff;border:1px solid #e4ddeb;border-radius:11px;cursor:pointer;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease,background .18s ease}.column-card:hover{transform:translateY(-2px);border-color:#d1c2ef;box-shadow:0 10px 25px rgba(63,36,118,.075)}.column-card.is-selected{background:var(--purple-50);border-color:#bba8ed;box-shadow:inset 0 0 0 1px rgba(111,75,232,.07)}.column-card>input{position:absolute;top:13px;right:13px;width:18px;height:18px;accent-color:var(--purple-600)}.column-title{display:block;padding-right:28px}.column-title b{display:block;color:#392f45;font-size:13px;line-height:1.35}.column-title em{display:inline-block;margin-top:4px;padding:3px 6px;color:#8a5a20;background:#fff5dc;border-radius:999px;font-size:9px;font-style:normal;font-weight:800}.column-counts{display:flex;gap:6px;flex-wrap:wrap;margin-top:11px}.column-counts span{padding:3px 6px;color:#706879;background:#f4f1f7;border-radius:6px;font-size:10px}.column-card>small{display:block;margin-top:9px;overflow:hidden;color:#99909f;font-size:10.5px;white-space:nowrap;text-overflow:ellipsis}.empty-state{padding:22px;color:#7d7485;background:#faf8fc;border:1px dashed #ddd5e5;border-radius:11px;text-align:center}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-top:18px}.stats-grid>div{padding:13px 14px;background:#faf9fc;border:1px solid #eeeaf1;border-radius:10px}.stats-grid span{display:block;color:#918998;font-size:10px}.stats-grid strong{display:block;margin-top:4px;color:#2f2934;font-size:20px}.status-panel{margin-top:12px;padding:13px 14px;border-radius:10px;text-align:left}.status-panel strong{display:block;font-size:12px}.status-panel span{display:block;margin-top:4px;font-size:11.5px;line-height:1.5}.status-panel.success{color:#246246;background:#f0faf5;border:1px solid #cdebdc}.status-panel.warning{color:#7a5416;background:#fff8e8;border:1px solid #f1d99f}.status-panel.neutral{color:#625b6a;background:#f7f5f9;border:1px solid #e3dde8}
.preview-block{margin-top:19px;padding-top:17px;border-top:1px solid #eeeaf1}.preview-heading{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:9px}.preview-heading h3{margin:4px 0 0;color:var(--purple-950);font-size:17px}.preview-heading>span{color:#918998;font-size:10px}.table-scroll{max-width:100%;overflow:auto;border:1px solid #e9e4ee;border-radius:10px}.table-scroll table{width:100%;min-width:820px;border-collapse:collapse;background:#fff}.table-scroll th,.table-scroll td{padding:9px 10px;border-bottom:1px solid #eeeaf1;text-align:left;vertical-align:top;font-size:11px}.table-scroll th{position:sticky;top:0;color:#4c4059;background:#f5f1ff;font-weight:800}.table-scroll td small{display:block;max-width:270px;margin-top:4px;color:#9a919f;line-height:1.4}.status-tag{display:inline-block;padding:3px 6px;border-radius:999px;font-size:9px;font-weight:850;text-transform:uppercase}.status-tag.convert{color:#276246;background:#e9f8f0}.status-tag.protected{color:#81581d;background:#fff4da}.status-tag.ambiguous{color:#744d9b;background:#f3eaff}.workspace-actions{display:flex;justify-content:flex-end;margin-top:16px}.primary-button{min-height:46px;padding:0 18px;color:#fff;background:var(--purple-600);border:1px solid var(--purple-600);border-radius:10px;box-shadow:0 7px 16px rgba(111,75,232,.18);font-weight:800}.primary-button:hover:not(:disabled){background:var(--purple-700);border-color:var(--purple-700)}.primary-button:disabled{color:#fff;background:#b8a6ef;border-color:#b8a6ef;box-shadow:none;opacity:.8}.trust-row{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;width:min(980px,100%);margin:16px auto 0;padding-bottom:38px;color:#827a89;font-size:12px}.trust-row span:before{color:var(--purple-500)}
.landing-content{width:min(980px,calc(100% - 40px));margin:0 auto;padding:4px 0 70px;text-align:left}.seo-section{margin-top:46px}.section-heading{margin-bottom:22px}.section-heading>span{display:inline-block;padding:5px 8px;color:var(--purple-700);background:var(--purple-50);border:1px solid #e6def7;border-radius:999px;font-size:10px;font-weight:850;letter-spacing:.08em}.section-heading h2{margin:10px 0 0;color:var(--purple-950);font-size:28px;line-height:1.25;letter-spacing:-.45px}.section-heading i{display:block;width:45px;height:3px;margin-top:9px;background:var(--purple-500);border-radius:999px}.section-heading p{margin:12px 0 0;color:#746d7b;font-size:15px;line-height:1.65}.steps-grid,.features-grid{display:grid;gap:13px}.steps-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.features-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.steps-grid article,.features-grid article{position:relative;padding:20px;background:#fff;border:1px solid #e8e1ee;border-radius:14px;box-shadow:0 8px 24px rgba(65,36,126,.035);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.steps-grid article:hover,.features-grid article:hover{transform:translateY(-3px);border-color:#d5c8ef;box-shadow:var(--shadow-hover)}.step-number{width:40px;height:40px;display:grid;place-items:center;margin-bottom:14px;color:#fff;background:linear-gradient(135deg,var(--purple-700),var(--purple-500));border-radius:11px;box-shadow:0 5px 12px rgba(93,53,204,.18);font-size:13px}.steps-grid h3,.features-grid h3{position:relative;z-index:1;margin:0 0 8px;color:var(--purple-950);font-size:16px}.steps-grid p,.features-grid p{position:relative;z-index:1;margin:0;color:#746d7b;font-size:15px;line-height:1.68}.features-grid article{min-height:168px;overflow:hidden;border-color:#e9e2f5}.features-grid article:before{content:"";position:absolute;top:-26px;right:-26px;width:72px;height:72px;border-radius:50%;background:rgba(129,95,240,.08);transition:transform .2s ease,background .2s ease}.features-grid article:hover:before{background:rgba(129,95,240,.13);transform:scale(1.14)}.features-grid article:nth-child(1),.features-grid article:nth-child(6){background:linear-gradient(145deg,#fff,#f6f2ff)}.features-grid article:nth-child(2),.features-grid article:nth-child(5){background:linear-gradient(145deg,#fff,#fbf9ff)}.features-grid article:nth-child(3),.features-grid article:nth-child(4){background:linear-gradient(145deg,#fdfcff,#f2edff)}.guidance-card{padding:24px;background:linear-gradient(135deg,#faf8ff 0%,#fff 75%);border:1px solid #ddd4f1;border-radius:16px;box-shadow:0 10px 28px rgba(67,38,125,.055)}.guidance-card p{margin:0;color:#746d7b;font-size:15px;line-height:1.75}.guidance-card p+p{margin-top:14px}.guidance-card code{padding:2px 5px;color:var(--purple-900);background:#eee9ff;border-radius:5px}.faq-list{border-top:1px solid #ded6ea}.faq-list details{position:relative;padding:0 15px;border-bottom:1px solid #ded6ea;transition:background .18s ease,box-shadow .18s ease}.faq-list details:hover{background:#faf8ff}.faq-list details[open]{background:#f8f5ff;box-shadow:inset 4px 0 0 var(--purple-500)}.faq-list summary{min-height:60px;padding:17px 38px 17px 0;display:flex;align-items:center;color:#40364d;font-size:15px;font-weight:760;list-style:none;cursor:pointer}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';position:absolute;right:15px;color:var(--purple-600);font-size:21px}.faq-list details[open] summary:after{content:'−'}.faq-list p{margin:-2px 0 0;padding:0 38px 18px 0;color:#746d7b;font-size:15px;line-height:1.7}.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:11px}.related-card{position:relative;min-height:78px;padding:15px 15px 15px 17px;display:flex;align-items:center;justify-content:space-between;gap:14px;overflow:hidden;color:inherit!important;background:#fff;border:1px solid #e2dbea;border-radius:12px;text-decoration:none!important;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.related-card::before{content:"";position:absolute;inset:0 auto 0 0;width:3px;background:var(--purple-500);opacity:.3;transition:width .18s ease,opacity .18s ease}.related-card:hover{transform:translateY(-2px);border-color:#cfc0ef;box-shadow:var(--shadow-hover)}.related-card:hover::before{width:5px;opacity:1}.related-card strong{display:block;color:var(--purple-950);font-size:14px}.related-card small{display:block;margin-top:4px;color:#918998;font-size:11.5px}.related-card>b{width:32px;height:32px;display:grid;place-items:center;flex:none;color:var(--purple-700);background:var(--purple-100);border-radius:9px;transition:transform .18s ease,background .18s ease}.related-card:hover>b{transform:translateX(2px);background:#e5ddfb}
@media(max-width:900px){.column-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.option-panel{grid-template-columns:1fr}.features-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.controls-grid,.steps-grid,.features-grid{grid-template-columns:1fr}.stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.features-grid article{min-height:0}}
@media(max-width:620px){.hero-section{padding:31px 14px 0}.hero-copy h1{font-size:clamp(32px,9.5vw,44px);line-height:1.07;letter-spacing:-1.3px}.hero-copy p{font-size:15px;line-height:1.58}.tool-shell{width:100%;padding:18px;border-radius:16px}.upload-zone{min-height:270px;padding:30px 17px}.file-bar{align-items:flex-start;flex-direction:column}.text-button{padding-left:0}.column-grid{grid-template-columns:1fr}.workspace-heading{align-items:flex-start;flex-direction:column;gap:5px}.stats-grid{grid-template-columns:1fr 1fr}.workspace-actions{display:block}.primary-button{width:100%;min-height:50px}.trust-row{display:grid;gap:8px;width:fit-content;margin-top:16px;padding-bottom:31px;text-align:left}.landing-content{width:calc(100% - 28px);padding-bottom:50px}.seo-section{margin-top:34px}.section-heading h2{font-size:24px}.steps-grid article:hover,.features-grid article:hover,.column-card:hover,.related-card:hover{transform:none}.related-grid{grid-template-columns:1fr}.faq-list details{padding:0 12px}.faq-list summary{padding-right:32px}.faq-list p{padding-right:16px}}
@media(prefers-reduced-motion:reduce){.text-number-tool *{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

/* v1.1.0 safety UX */
.option-panel{grid-template-columns:repeat(2,minmax(0,1fr))}
.column-card.is-locked{background:#faf9fb;border-color:#ece7ef;cursor:not-allowed;box-shadow:none}
.column-card.is-locked:hover{transform:none;border-color:#ece7ef;box-shadow:none}
.column-card.is-locked>input{opacity:.45;cursor:not-allowed}
.column-card.is-locked .column-title b{color:#6f6875}
.protection-panel{margin-top:12px;padding:13px 14px;display:flex;align-items:center;justify-content:space-between;gap:18px;color:#604917;background:#fff9e9;border:1px solid #f0dcaa;border-radius:11px}
.protection-panel>div{min-width:0}.protection-panel strong{display:block;font-size:12px}.protection-panel span{display:block;margin-top:4px;font-size:11px;line-height:1.5}
.advanced-unlock{min-height:38px;padding:8px 10px;display:flex;align-items:center;gap:8px;flex:none;background:#fff;border:1px solid #ead5a0;border-radius:9px;cursor:pointer}
.advanced-unlock input{width:18px;height:18px;margin:0;accent-color:var(--purple-600)}.advanced-unlock span{margin:0;font-size:10.5px;font-weight:750;white-space:nowrap}.advanced-unlock b{margin-left:4px;padding:2px 5px;color:#7c5315;background:#fff4d7;border-radius:999px;font-size:8px;letter-spacing:.04em;text-transform:uppercase}
@media(max-width:760px){.option-panel{grid-template-columns:1fr}.protection-panel{align-items:flex-start;flex-direction:column}.advanced-unlock{width:100%;justify-content:flex-start}}