:root{color-scheme:light;--ink:#1d2433;--muted:#657087;--line:#dce2ec;--surface:#fff;--soft:#f5f7fb;--purple:#6d4aff;--purple-dark:#4e32d5;--purple-soft:#f0ecff;--green:#0f8a63;--green-soft:#e9f8f2;--red:#b42336;--red-soft:#fff0f2;--shadow:0 18px 45px rgba(32,42,66,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:radial-gradient(circle at 15% 0%,#f0ecff 0,transparent 32rem),var(--soft);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,system-ui,sans-serif;line-height:1.7}button,input,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(109,74,255,.35);outline-offset:3px}[hidden]{display:none!important}
.topbar{position:sticky;z-index:10;top:0;display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:10px max(20px,calc((100vw - 1180px)/2));border-bottom:1px solid rgba(220,226,236,.85);background:rgba(255,255,255,.9);backdrop-filter:blur(14px)}.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-size:1.05rem;font-weight:900;letter-spacing:.05em;text-decoration:none}.brand span{display:inline-grid;width:38px;height:38px;place-items:center;border-radius:13px;color:#fff;background:linear-gradient(145deg,var(--purple),#9c5cff);font-size:.8rem}.top-actions{display:flex;align-items:center;gap:12px}.remaining-badge{padding:6px 11px;border-radius:999px;color:var(--purple-dark);background:var(--purple-soft);font-size:.78rem;font-weight:800}
.page-shell{width:min(1180px,calc(100% - 40px));margin:0 auto;padding:58px 0 80px}.hero{max-width:780px;margin-bottom:32px}.eyebrow,.step-label{margin:0 0 8px;color:var(--purple-dark);font-size:.78rem;font-weight:900;letter-spacing:.09em}.hero h1{margin:0;font-size:clamp(2rem,5vw,4.25rem);line-height:1.14;letter-spacing:-.045em}.hero h1 span{color:var(--purple)}.hero-copy{max-width:700px;margin:20px 0;color:var(--muted)}.trust-list{display:flex;flex-wrap:wrap;gap:8px 16px;margin:0;padding:0;list-style:none;color:var(--muted);font-size:.84rem;font-weight:700}.trust-list li:before{content:"✓";margin-right:7px;color:var(--green);font-weight:900}
.progress{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:0 0 20px;padding:0;list-style:none}.progress li{display:flex;align-items:center;gap:9px;min-height:56px;padding:9px 12px;border:1px solid var(--line);border-radius:15px;color:var(--muted);background:rgba(255,255,255,.78);font-size:.8rem}.progress span{display:grid;width:30px;height:30px;flex:0 0 30px;place-items:center;border-radius:10px;background:var(--soft);font-weight:900}.progress .is-current{border-color:rgba(109,74,255,.45);color:var(--purple-dark);background:#fff;box-shadow:0 8px 24px rgba(109,74,255,.09)}.progress .is-current span,.progress .is-complete span{color:#fff;background:var(--purple)}.progress .is-complete{color:var(--green);background:var(--green-soft)}
.content-grid{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(280px,.8fr);gap:22px;align-items:start}.stage-column,.side-column{display:grid;gap:18px}.panel,.side-card{padding:clamp(22px,4vw,38px);border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:var(--shadow)}.panel{scroll-margin-top:86px}.panel h2,.side-card h2{margin:0 0 8px;line-height:1.35;letter-spacing:-.02em}.panel>p:not(.step-label),.side-card>p{margin:0 0 22px;color:var(--muted)}
.primary-button,.secondary-button,.text-button,.danger-link,.feedback-fieldset button{min-height:46px;border-radius:13px;cursor:pointer;font-weight:800}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:12px 18px;border:1px solid var(--purple);color:#fff;background:linear-gradient(135deg,var(--purple),var(--purple-dark));box-shadow:0 10px 22px rgba(109,74,255,.2);text-decoration:none}.primary-button:hover{filter:brightness(.98);transform:translateY(-1px)}.primary-button[aria-disabled=true]{pointer-events:none;opacity:.65}.secondary-button{width:100%;padding:11px 15px;border:1px solid var(--line);color:var(--ink);background:#fff}.text-button{padding:8px 10px;border:0;color:var(--purple-dark);background:transparent}.google-button span{display:grid;width:26px;height:26px;place-items:center;border-radius:50%;color:#3569d4;background:#fff}#devLoginButton{margin-top:10px}.fine-print{margin:10px 0 0!important;color:var(--muted);font-size:.76rem;text-align:center}
.message{margin:0;padding:13px 16px;border:1px solid var(--line);border-radius:14px;background:#fff;font-size:.88rem;font-weight:700}.message.is-error{border-color:#f3bdc5;color:var(--red);background:var(--red-soft)}.message.is-success{border-color:#b9e4d5;color:var(--green);background:var(--green-soft)}
.sample-list{display:grid;gap:16px}.sample-list label,.result-editor{display:grid;gap:7px;font-weight:800}.sample-list label>span{display:flex;justify-content:space-between}.sample-list small,.result-editor small{color:var(--muted);font-size:.72rem;font-weight:600}.sample-list .count,.result-editor>small{justify-self:end}textarea{width:100%;resize:vertical;padding:13px 14px;border:1px solid #cbd3df;border-radius:13px;color:var(--ink);background:#fff;line-height:1.7}textarea:focus{border-color:var(--purple)}.add-button{margin:5px 0 14px}
.consent-box,.platform-fieldset,.feedback-fieldset{display:grid;gap:11px;margin:0 0 18px;padding:17px;border:1px solid var(--line);border-radius:16px}.consent-box legend,.platform-fieldset legend,.feedback-fieldset legend{padding:0 6px;font-weight:900}.consent-box label{display:grid;grid-template-columns:24px 1fr;gap:9px;align-items:start;color:var(--muted);font-size:.82rem;cursor:pointer}.consent-box input{width:20px;height:20px;margin:3px 0 0;accent-color:var(--purple)}
.file-field{display:grid;gap:8px;margin-bottom:18px;padding:20px;border:2px dashed #bbc4d3;border-radius:17px;background:var(--soft)}.file-title{font-weight:900}.file-title strong{color:var(--red);font-size:.75rem}.file-help,.file-status{color:var(--muted);font-size:.78rem}.file-field input{min-height:44px;padding:8px;border:1px solid var(--line);border-radius:10px;background:#fff}
.platform-fieldset{grid-template-columns:repeat(2,1fr)}.platform-fieldset legend{grid-column:1/-1}.platform-fieldset label{position:relative;cursor:pointer}.platform-fieldset input{position:absolute;opacity:0}.platform-fieldset span{display:grid;gap:2px;min-height:67px;padding:12px 14px;border:1px solid var(--line);border-radius:13px}.platform-fieldset small{color:var(--muted)}.platform-fieldset input:checked+span{border-color:var(--purple);color:var(--purple-dark);background:var(--purple-soft);box-shadow:0 0 0 3px rgba(109,74,255,.1)}.platform-fieldset input:focus-visible+span{outline:3px solid rgba(109,74,255,.35);outline-offset:3px}
.processing-panel{padding-block:70px;text-align:center}.spinner{width:50px;height:50px;margin:0 auto 20px;border:5px solid var(--purple-soft);border-top-color:var(--purple);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.result-editor textarea{min-height:300px}.button-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:14px}.button-grid .primary-button{grid-column:1/-1}.feedback-fieldset{grid-template-columns:1fr 1fr;margin:22px 0 0}.feedback-fieldset legend,.feedback-fieldset p{grid-column:1/-1}.feedback-fieldset button{padding:10px;border:1px solid var(--line);color:var(--ink);background:#fff}.feedback-fieldset p{min-height:1.5em;margin:0;color:var(--green);font-size:.8rem}
.paid-panel{color:#fff;border:0;background:linear-gradient(145deg,#251a57,#4f36b8)}.paid-panel .eyebrow,.paid-panel>p{color:#dcd4ff!important}.paid-panel ul{display:grid;gap:7px;margin:20px 0;padding-left:21px}.paid-panel .primary-button{border-color:#fff;color:var(--purple-dark);background:#fff;box-shadow:none}
.side-card{padding:24px;border-radius:20px;box-shadow:0 10px 30px rgba(32,42,66,.06)}.side-card h2{font-size:1rem}.side-card ol,.side-card ul{display:grid;gap:12px;margin:16px 0 0;padding:0;list-style:none}.side-card ol li{display:grid;grid-template-columns:32px 1fr;gap:9px;align-items:start}.side-card ol li>span{display:grid;width:30px;height:30px;place-items:center;border-radius:10px;color:var(--purple-dark);background:var(--purple-soft);font-weight:900}.side-card ol p{display:grid;gap:2px;margin:0}.side-card small,.side-card dd{color:var(--muted);font-size:.76rem}.comparison-card dl{display:grid;gap:10px;margin:14px 0 0}.comparison-card dl div{padding:12px;border-radius:12px;background:var(--soft)}.comparison-card dt{font-weight:900}.comparison-card dd{margin:2px 0 0}.privacy-card li{color:var(--muted);font-size:.82rem}.privacy-card li:before{content:"✓";margin-right:7px;color:var(--green);font-weight:900}.danger-link{width:100%;margin-top:18px;padding:9px;border:1px solid #f2c6cc;color:var(--red);background:#fff}
@media(max-width:820px){.page-shell{width:min(100% - 28px,680px);padding-top:36px}.content-grid{grid-template-columns:1fr}.progress strong{display:none}.progress li{justify-content:center;padding:7px}.hero{margin-bottom:24px}}@media(max-width:520px){.topbar{padding-inline:14px}.remaining-badge{font-size:.7rem}.page-shell{width:min(100% - 20px,680px)}.panel,.side-card{padding:20px;border-radius:18px}.platform-fieldset,.button-grid,.feedback-fieldset{grid-template-columns:1fr}.platform-fieldset legend,.button-grid .primary-button,.feedback-fieldset legend,.feedback-fieldset p{grid-column:1}.hero h1{font-size:2.35rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.spinner{animation:none}.primary-button:hover{transform:none}}