[hidden]{display:none!important}
:root{color-scheme:dark;--panel:rgba(15,23,42,.9);--line:rgba(148,163,184,.24);--text:#f8fafc;--muted:#94a3b8;--soft:#dbeafe;--blue:#60a5fa;--green:#34d399;--red:#f43f5e;--orange:#fb923c}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:linear-gradient(180deg,#0b1220,#08111f 55%,#050914);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
button,input{font:inherit}.page{width:min(1240px,calc(100% - 32px));margin:0 auto;padding:18px 0 36px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px}.brand{color:var(--text);font-weight:950;text-decoration:none}.lang{display:inline-flex;gap:5px;padding:5px;border:1px solid var(--line);border-radius:999px;background:rgba(15,23,42,.72)}.lang a{min-width:48px;padding:8px 12px;border-radius:999px;color:var(--muted);text-align:center;text-decoration:none;font-size:13px;font-weight:900}.lang .active{background:#f8fafc;color:#0f172a}
.hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.55fr);gap:18px;align-items:end;margin-bottom:18px}.eyebrow{margin:0 0 10px;color:var(--green);font-size:12px;font-weight:950;letter-spacing:.12em;text-transform:uppercase}h1{margin:0;font-size:clamp(36px,5.5vw,64px);line-height:1}.summary{margin:13px 0 0;color:var(--soft);font-size:16px;line-height:1.65}.trust{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}.trust span{border:1px solid rgba(96,165,250,.28);border-radius:999px;padding:7px 10px;background:rgba(96,165,250,.08);font-size:12px;font-weight:850}
.card,.seo-card{border:1px solid var(--line);border-radius:16px;background:var(--panel);box-shadow:0 24px 80px rgba(0,0,0,.22)}.hero-card,.seo-card{padding:18px}.hero-card h2,.seo-card h2,.seo-card h3{margin:0 0 10px}.hero-card p,.seo-card p,.seo-card li{color:var(--muted);line-height:1.68}
.drop{display:grid;place-items:center;min-height:180px;margin-bottom:18px;border:1.5px dashed rgba(96,165,250,.45);border-radius:16px;background:#07111f;text-align:center;padding:22px}.drop.hot{border-color:var(--green);background:rgba(52,211,153,.08)}.drop strong{display:block;font-size:22px}.drop span{display:block;margin:8px auto 0;max-width:520px;color:var(--muted);line-height:1.55}.file-picker{display:inline-flex;margin-top:16px;border:0;border-radius:11px;background:linear-gradient(135deg,var(--green),var(--blue));color:#06111f;padding:12px 18px;font-weight:950;cursor:pointer}.file-picker input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.split-app{display:grid;grid-template-columns:minmax(0,1fr) 430px;gap:18px;align-items:start}.preview-panel{min-height:610px;padding:18px}.panel-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:16px}.panel-head h2{margin:0;font-size:20px}.panel-head p{margin:6px 0 0;color:var(--muted);font-size:13px;line-height:1.5}.file-badge{flex:0 0 auto;border:1px solid rgba(52,211,153,.28);border-radius:999px;padding:8px 11px;background:rgba(52,211,153,.08);color:var(--green);font-size:12px;font-weight:900}.preview-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:14px;align-items:start}.empty-state{display:grid;place-items:center;min-height:430px;border:1px dashed rgba(148,163,184,.22);border-radius:14px;color:var(--muted);text-align:center;padding:24px}.page-thumb{position:relative;border:1px solid rgba(148,163,184,.2);border-radius:13px;background:#0a1322;padding:10px;box-shadow:0 12px 26px rgba(0,0,0,.18)}.page-thumb canvas{display:block;width:100%;height:auto;border-radius:5px;background:#fff;box-shadow:0 5px 16px rgba(0,0,0,.28)}.page-thumb strong{display:block;margin-top:9px;text-align:center;font-size:12px}.ellipsis-card{display:grid;place-items:center;min-height:190px;border:1px dashed rgba(148,163,184,.3);border-radius:13px;color:var(--muted);font-size:28px;font-weight:950}
.settings{position:sticky;top:14px;overflow:hidden}.settings-title{padding:18px 20px;border-bottom:1px solid var(--line)}.settings-title h2{margin:0;font-size:25px}.settings-title p{margin:6px 0 0;color:var(--muted);font-size:13px}.mode-tabs{display:grid;grid-template-columns:repeat(3,1fr);border-bottom:1px solid var(--line)}.mode-tab{min-height:86px;border:0;border-right:1px solid var(--line);background:rgba(2,6,23,.28);color:var(--muted);cursor:pointer;font-weight:900}.mode-tab:last-child{border-right:0}.mode-tab span{display:block;margin:0 auto 6px;color:var(--blue);font-size:19px}.mode-tab.active{background:rgba(52,211,153,.08);color:var(--text);box-shadow:inset 0 -3px 0 var(--green)}.mode-panel{display:grid;gap:14px;padding:18px}.field{display:grid;gap:8px}.field label,.section-label{color:var(--muted);font-size:12px;font-weight:950;letter-spacing:.07em;text-transform:uppercase}.field input,.range-input{width:100%;border:1px solid rgba(148,163,184,.27);border-radius:10px;background:#07111f;color:var(--text);padding:11px 12px;outline:none}.range-list{display:grid;gap:10px}.range-row{display:grid;grid-template-columns:auto 1fr auto 1fr auto;gap:8px;align-items:center;border:1px solid rgba(148,163,184,.18);border-radius:12px;background:#07111f;padding:10px}.range-row>span{color:var(--muted);font-size:12px;font-weight:900}.range-no{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:rgba(96,165,250,.12);color:var(--blue);font-weight:950}.icon-btn{width:32px;height:32px;border:1px solid rgba(148,163,184,.25);border-radius:8px;background:#111827;color:#e2e8f0;cursor:pointer}.add-range{border:1px solid rgba(52,211,153,.34);border-radius:10px;background:rgba(52,211,153,.08);color:var(--green);padding:10px;font-weight:900;cursor:pointer}.check-row{display:flex;align-items:flex-start;gap:10px;color:#cbd5e1;line-height:1.45;font-size:14px}.check-row input{width:18px;height:18px;margin-top:1px;accent-color:var(--green)}.mode-help{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.action-area{display:grid;gap:10px;padding:18px;border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(244,63,94,.04),rgba(244,63,94,.11))}.btn{border:1px solid rgba(148,163,184,.28);border-radius:11px;background:#111827;color:#e2e8f0;min-height:48px;padding:12px 14px;font-weight:950;cursor:pointer;text-decoration:none;text-align:center}.btn.primary{border:0;background:linear-gradient(135deg,var(--red),var(--orange));color:#fff;font-size:17px}.btn:disabled,.btn.disabled{opacity:.48;cursor:not-allowed}.action-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}.metric{border:1px solid rgba(148,163,184,.18);border-radius:12px;background:rgba(2,6,23,.42);padding:11px}.metric>span{display:block;color:var(--muted);font-size:12px;font-weight:850}.metric>strong{display:block;margin-top:5px;color:var(--green);font-size:19px}.metric>strong span{display:inline;color:inherit;font:inherit}.results{margin-top:14px;padding:14px}.results h2{margin:0 0 12px;font-size:18px}.result-list{display:grid;gap:9px}.result-item{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;align-items:center;border:1px solid rgba(148,163,184,.18);border-radius:11px;background:#07111f;padding:10px 12px}.result-item strong{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.result-item span{display:block;margin-top:4px;color:var(--muted);font-size:12px}.result-item a{border:1px solid rgba(96,165,250,.3);border-radius:8px;color:#bfdbfe;padding:8px 10px;text-decoration:none;font-size:12px;font-weight:900}.hint{margin:0;color:var(--muted);font-size:13px;line-height:1.6}.seo{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:20px}.toast{position:fixed;left:50%;bottom:24px;z-index:20;transform:translate(-50%,70px);opacity:0;border-radius:999px;background:#f8fafc;color:#0f172a;padding:12px 16px;font-weight:950;transition:.2s ease}.toast.show{transform:translate(-50%,0);opacity:1}
@media(max-width:980px){.hero,.split-app,.seo{grid-template-columns:1fr}.settings{position:static}.preview-panel{min-height:auto}.empty-state{min-height:260px}}
@media(max-width:600px){.page{width:min(100% - 22px,1240px)}.mode-tab{min-height:72px}.range-row{grid-template-columns:auto 1fr auto 1fr}.range-row .icon-btn{grid-column:1/-1;width:100%}.metrics,.action-row{grid-template-columns:1fr}.preview-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}