:root{--bg:#f7f9fe;--card:#fff;--text:#14213d;--muted:#6b7691;--line:#e6eaf3;--blue:#4756f6;--purple:#7655f6;--green:#079455;--red:#d92d20;--amber:#f79009;--shadow:0 16px 50px rgba(47,67,133,.10)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;background:linear-gradient(180deg,#fbfcff,#f7f9fe 35%,#fff);color:var(--text)}.material-symbols-rounded{font-variation-settings:'FILL' 0,'wght' 200,'GRAD' 0,'opsz' 24}.wrap{width:min(1180px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,234,243,.9)}.nav{height:72px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;font-weight:800;text-decoration:none;color:var(--text)}.brandmark{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#6d5dfc,#385cf6);display:grid;place-items:center;color:white;box-shadow:0 8px 20px rgba(71,86,246,.25)}nav{display:flex;gap:24px;margin-left:auto}nav a{color:#4b5875;text-decoration:none;font-size:14px}.btn{border:1px solid var(--line);height:44px;padding:0 16px;border-radius:12px;background:white;color:var(--text);font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;cursor:pointer}.btn .material-symbols-rounded{font-size:20px}.btn-primary{background:linear-gradient(135deg,var(--blue),var(--purple));color:white;border:0;box-shadow:0 10px 25px rgba(71,86,246,.22)}.btn-ghost{background:#fff}.hero{display:grid;grid-template-columns:1fr 1.04fr;gap:52px;align-items:center;padding:82px 0 64px}.kicker{font-size:12px;font-weight:800;letter-spacing:.13em;color:var(--blue)}h1{font-size:52px;line-height:1.06;margin:16px 0 20px;letter-spacing:-.04em}h1 span{color:var(--blue)}.hero-copy>p{font-size:18px;line-height:1.65;color:var(--muted);max-width:620px}.hero-actions{display:flex;gap:12px;margin-top:28px}.hero-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:34px}.hero-mini>div{padding:16px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.75)}.hero-mini .material-symbols-rounded{color:var(--blue);font-size:25px}.hero-mini b,.hero-mini small{display:block;margin-top:8px}.hero-mini b{font-size:13px}.hero-mini small{font-size:11px;color:var(--muted)}.card{background:var(--card);border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow)}.hero-demo{overflow:hidden;transform:perspective(1000px) rotateY(-2deg)}.demo-bar{height:42px;background:#fbfcff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:6px;padding:0 14px}.demo-bar i{width:7px;height:7px;border-radius:50%;background:#ff6b6b}.demo-bar i:nth-child(2){background:#ffd166}.demo-bar i:nth-child(3){background:#4cd97b}.demo-bar span{margin-left:10px;color:#929bb0;font-size:11px}.demo-body{padding:18px}.demo-url{height:38px;border:1px solid var(--line);border-radius:10px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;color:#6b7691;font-size:11px}.demo-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:12px;margin-top:12px}.demo-grid pre{margin:0;padding:14px;border:1px solid var(--line);border-radius:12px;background:#fbfcff;font-size:10px;line-height:1.55;color:#3a7657;white-space:pre-wrap}.demo-side{border:1px solid var(--line);border-radius:12px;padding:14px;font-size:11px}.chips{display:flex;flex-wrap:wrap;gap:5px;margin:10px 0}.chips span,.badge{padding:6px 10px;border-radius:999px;background:#eefaf4;color:#067647;font-size:11px;font-weight:700}.demo-check{display:flex;align-items:center;gap:6px;padding:7px 0;border-top:1px solid #f0f2f6}.demo-check .material-symbols-rounded{font-size:16px;color:var(--green)}.section{padding:70px 0}.section-title{text-align:center;margin-bottom:34px}.section-title h2{font-size:30px;margin:0}.section-title p{color:var(--muted);margin:10px 0 0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.feature{padding:22px;display:flex;gap:16px;box-shadow:none}.feature>.material-symbols-rounded{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:#f0efff;color:var(--blue);font-size:25px;flex:0 0 46px}.feature h3{font-size:15px;margin:2px 0 7px}.feature p{font-size:13px;line-height:1.5;color:var(--muted);margin:0}.how{background:#fff}.steps{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:center;gap:14px}.steps>div{position:relative;text-align:center}.steps>div>b{position:absolute;left:calc(50% - 36px);top:-8px;width:22px;height:22px;border-radius:50%;background:var(--blue);color:#fff;font-size:11px;display:grid;place-items:center}.steps>div>.material-symbols-rounded{width:58px;height:58px;border-radius:50%;background:#f0efff;color:var(--blue);display:grid;place-items:center;margin:auto;font-size:28px}.steps h3{font-size:14px;margin:12px 0 5px}.steps p{font-size:12px;color:var(--muted)}.arrow{color:#8793b7}.tool-section{padding:76px 0;background:radial-gradient(circle at 50% 0,#eef2ff 0,transparent 35%)}.tool{padding:18px}.tool-tabs{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:14px;overflow:hidden}.tab{height:50px;border:0;background:#fff;color:#61708d;font-weight:700;cursor:pointer;display:flex;gap:8px;align-items:center;justify-content:center}.tab.active{color:var(--blue);background:#f7f8ff;box-shadow:inset 0 -2px 0 var(--blue)}.urlbox{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:16px}.input-wrap{height:50px;border:1px solid var(--line);border-radius:13px;display:flex;align-items:center;gap:10px;padding:0 14px;background:#fff}.input-wrap .material-symbols-rounded{color:#8a96b1}.input-wrap input{border:0;outline:0;width:100%;font-size:14px}.status{margin:12px 0 16px;padding:11px 13px;background:#f7f9ff;border:1px solid #e6eaff;border-radius:12px;color:#63708b;font-size:12px;display:flex;align-items:center;gap:8px}.status.success{background:#f0fff8;color:#067647;border-color:#ccf4df}.status.error{background:#fff4f3;color:#b42318;border-color:#ffd9d5}.status .material-symbols-rounded{font-size:18px}.tool-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:16px}.pane,.existing,.compare-wrap{border:1px solid var(--line);border-radius:16px;background:#fff;overflow:hidden}.pane-head{min-height:66px;border-bottom:1px solid var(--line);padding:14px 16px;display:flex;justify-content:space-between;gap:12px;align-items:center}.pane-head h3{font-size:15px;margin:0}.pane-head p{font-size:11px;color:var(--muted);margin:4px 0 0}.actions{display:flex;gap:6px}.icon-btn{width:36px;height:36px;border:1px solid var(--line);border-radius:10px;background:#fff;display:grid;place-items:center;cursor:pointer}.icon-btn .material-symbols-rounded{font-size:20px}.empty-state{min-height:430px;display:grid;place-items:center;align-content:center;color:#9aa3b8;text-align:center}.empty-state .material-symbols-rounded{font-size:42px}.field-list{padding:12px 16px}.field{padding:11px 0;border-bottom:1px solid #f0f2f6}.field:last-child{border-bottom:0}.field-head{display:flex;justify-content:space-between;gap:10px;font-size:12px}.field-head b{font-size:12px}.field-source{font-size:10px;color:#8a95ac;background:#f5f7fb;padding:3px 6px;border-radius:6px}.field-value{font-size:13px;color:#40506e;margin-top:4px;word-break:break-word}.field.missing .field-value{color:#b54708}.field .material-symbols-rounded{font-size:16px;vertical-align:-3px;margin-right:4px;color:var(--green)}.field.missing .material-symbols-rounded{color:var(--amber)}#schemaEditor{display:block;width:100%;min-height:430px;border:0;outline:0;resize:vertical;padding:16px;background:#fbfcff;font:13px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace;color:#263650}.download-row{border-top:1px solid var(--line);padding:12px 14px;display:flex;justify-content:flex-end;gap:8px}.existing,.compare-wrap{margin-top:16px}.existing #existingSchemas{padding:14px 16px}.empty-inline{color:#9aa3b8;font-size:12px}.schema-block{padding:10px 12px;background:#fbfcff;border:1px solid var(--line);border-radius:10px;margin-bottom:8px;font-size:12px}.schema-block b{color:var(--blue)}.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;padding:14px}.search-card{border:1px solid var(--line);border-radius:14px;padding:14px}.search-card h4{font-size:15px;margin:0 0 12px}.google h4:before{content:'G';color:#4285f4;font-weight:900;margin-right:8px}.yandex h4:before{content:'Я';color:#f33;font-weight:900;margin-right:8px}.serp{font-family:Arial,sans-serif;border:1px solid #eef0f4;border-radius:10px;padding:14px}.serp-url{font-size:12px;color:#4f5b70}.serp-title{font-size:18px;color:#1a0dab;margin:5px 0}.yandex .serp-title{color:#0044bb}.serp-desc{font-size:12px;line-height:1.45;color:#4d5156}.serp-rich{display:flex;gap:10px;flex-wrap:wrap;font-size:12px;margin-top:7px}.serp-price{font-weight:700}.serp-stock{color:#14833b}.diag-list{margin-top:10px}.diag{display:flex;gap:7px;font-size:11px;padding:6px 0}.diag .material-symbols-rounded{font-size:16px}.diag.ok{color:#067647}.diag.warn{color:#b54708}.diag.error{color:#b42318}.empty-serp{color:#98a2b3}footer{border-top:1px solid var(--line);padding:28px 0;background:#fff}.footer{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.loading{opacity:.55;pointer-events:none}@media(max-width:980px){nav{display:none}.hero{grid-template-columns:1fr;padding-top:54px}.hero-demo{transform:none}.feature-grid{grid-template-columns:1fr 1fr}.tool-grid{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.steps>.arrow{display:none}}@media(max-width:650px){h1{font-size:38px}.hero-mini,.feature-grid,.compare-grid,.tool-tabs{grid-template-columns:1fr}.urlbox{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.nav>.btn{display:none}.hero{gap:30px}.demo-grid{grid-template-columns:1fr}}
.active-link{color:var(--blue)!important;font-weight:700}.analyzer-page .tool-section{padding-top:48px;min-height:calc(100vh - 130px)}.serp-preview{display:grid;grid-template-columns:minmax(0,1fr) 112px;gap:14px;align-items:start}.serp-main{min-width:0}.serp-image-wrap{width:112px;height:112px;border:1px solid #eef0f4;border-radius:12px;overflow:hidden;background:#fff;display:grid;place-items:center}.serp-image{width:100%;height:100%;object-fit:contain;display:block}@media(max-width:650px){.serp-preview{grid-template-columns:1fr}.serp-image-wrap{width:96px;height:96px}}

/* Analyzer v2.2 */
.analyzer-page .wrap{width:100%;max-width:1920px;padding-left:24px;padding-right:24px}
.analyzer-wrap{max-width:1920px!important}
.analyzer-shell{padding:20px}
.analyzer-tabs{grid-template-columns:repeat(3,minmax(0,1fr));position:sticky;top:88px;z-index:8;background:#fff}
.input-panel{margin-top:16px}.input-panel[hidden]{display:none!important}
.manual-json-box{border:1px solid var(--line);border-radius:14px;background:#fff;overflow:hidden}.manual-json-box textarea{display:block;width:100%;min-height:240px;border:0;resize:vertical;outline:0;padding:18px;background:#fbfcff;font:14px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace;color:#263650}.manual-json-actions{display:flex;justify-content:flex-end;padding:12px;border-top:1px solid var(--line)}
.improve-callout{display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;padding:20px;border:1px solid #dedbff;border-radius:16px;background:linear-gradient(135deg,#faf9ff,#f5f7ff)}.improve-callout h3{margin:0 0 5px;font-size:17px}.improve-callout p{margin:0;color:var(--muted);font-size:13px;line-height:1.55}.improve-icon{width:48px;height:48px;border-radius:14px;background:#ece9ff;color:var(--purple);display:grid;place-items:center}.improve-icon .material-symbols-rounded{font-size:28px}
.result-area{display:grid;gap:18px;margin-top:18px}.result-section{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.result-head{min-height:84px;padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px}.result-head h3{font-size:20px;margin:2px 0 5px}.result-head p{font-size:13px;color:var(--muted);margin:0}.eyebrow{display:inline-block;color:var(--blue);font-size:11px;font-weight:800;letter-spacing:.12em}
.compare-grid{grid-template-columns:repeat(2,minmax(0,1fr));padding:18px;gap:18px}.search-card{padding:0;overflow:hidden}.engine-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}.engine-kicker{font-size:12px;color:var(--muted);font-weight:800;text-transform:uppercase;letter-spacing:.08em}.engine-head h4{margin:4px 0 0;font-size:17px}.engine-status{font-size:11px;font-weight:700;padding:6px 9px;border-radius:999px}.engine-status.good{background:#ecfdf3;color:#067647}.engine-status.bad{background:#fff1f0;color:#b42318}
.serp{border:0;border-radius:0;padding:20px;min-height:220px}.serp-preview{display:grid;grid-template-columns:minmax(0,1fr) 150px;gap:22px;align-items:start}.serp-title{font-size:21px;line-height:1.3;margin:7px 0}.serp-url{font-size:14px}.serp-desc{font-size:14px;line-height:1.55}.serp-rich{font-size:14px;gap:12px;margin-top:10px}.serp-rating{color:#b06000}.serp-image-wrap{width:150px;height:118px;border:1px solid #edf0f5;border-radius:12px;background:#fafbfc;display:grid;place-items:center;overflow:hidden}.serp-image{width:100%;height:100%;object-fit:contain}.image-placeholder{display:none;color:#98a2b3}.image-error .image-placeholder{display:block}
.issue-counters{display:flex;flex-wrap:wrap;gap:8px}.count-badge{font-size:12px;font-weight:700;padding:7px 10px;border-radius:999px}.error-count{background:#fff1f0;color:#b42318}.warn-count{background:#fffaeb;color:#b54708}.rec-count{background:#eef4ff;color:#3538cd}
.diagnostic-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;padding:18px}.diag-panel{border:1px solid var(--line);border-radius:14px;overflow:hidden}.diag-panel-head{height:52px;padding:0 14px;background:#fbfcff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:14px}.diag-panel-head>span{font-size:12px;color:var(--muted)}.diag-zero{display:flex;align-items:center;gap:5px;color:var(--green)!important}.diag-zero .material-symbols-rounded{font-size:18px}.diag-items{padding:8px 14px}.diag-item{display:grid;grid-template-columns:24px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid #f0f2f6}.diag-item:last-child{border-bottom:0}.diag-item>.material-symbols-rounded{font-size:21px}.diag-item b{font-size:14px}.diag-item p{font-size:12px;color:var(--muted);margin:4px 0 0;line-height:1.5}.diag-item.error>.material-symbols-rounded{color:var(--red)}.diag-item.warn>.material-symbols-rounded{color:var(--amber)}.diag-item.rec>.material-symbols-rounded{color:var(--blue)}
.source-grid{display:grid;grid-template-columns:1fr .8fr;gap:0}.source-grid>.field-list{border-right:1px solid var(--line)}.existing-side{padding:16px 18px}.existing-side h4{font-size:14px;margin:0 0 12px}.schema-block{display:flex;justify-content:space-between;gap:12px}.json-section #schemaEditor{min-height:500px;font-size:14px;line-height:1.65}
@media(max-width:1100px){.compare-grid,.diagnostic-columns,.source-grid{grid-template-columns:1fr}.source-grid>.field-list{border-right:0;border-bottom:1px solid var(--line)}.serp-preview{grid-template-columns:minmax(0,1fr) 130px}.serp-image-wrap{width:130px;height:104px}}
@media(max-width:700px){.analyzer-page .wrap{padding-left:14px;padding-right:14px}.analyzer-tabs{position:static;grid-template-columns:1fr}.improve-callout{grid-template-columns:auto 1fr}.improve-callout .btn{grid-column:1/-1}.result-head{align-items:flex-start;flex-direction:column}.serp-preview{grid-template-columns:1fr}.serp-image-wrap{width:100%;height:180px}.issue-counters{width:100%}}
.source-details{margin:0 18px 18px;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:#fbfcff}.source-details summary{list-style:none;cursor:pointer;min-height:54px;padding:10px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;font-weight:700}.source-details summary::-webkit-details-marker{display:none}.source-details summary>span:first-child{display:flex;align-items:center;gap:8px}.source-details summary .material-symbols-rounded{font-size:20px;color:var(--blue)}.source-details[open] summary{border-bottom:1px solid var(--line);background:#fff}.source-details .source-grid{background:#fff}


/* UI v2.3 */
:root{--blue:#4b5cf8;--purple:#4b5cf8}
.btn,.btn-primary,.btn-ghost,.icon-btn{background:#4b5cf8!important;color:#fff!important;border-color:#4b5cf8!important;box-shadow:none!important}
.btn:hover,.icon-btn:hover{background:#3f4fe7!important;border-color:#3f4fe7!important}
.tab.active{background:#4b5cf8!important;color:#fff!important;box-shadow:none!important}
.tab:not(.active){background:#fff;color:#596780}
.brandmark{background:#4b5cf8!important;box-shadow:none!important}

/* max radius 5px */
.btn,.icon-btn,.card,.brandmark,.hero-mini>div,.demo-url,.demo-grid pre,.demo-side,.feature>.material-symbols-rounded,.tool-tabs,.input-wrap,.status,.pane,.existing,.compare-wrap,.field-source,.schema-block,.search-card,.serp,.serp-image-wrap,.manual-json-box,.improve-callout,.improve-icon,.result-section,.engine-status,.count-badge,.diag-panel,.source-details,.badge,.quality-badge,.quality-card,.ace-json-editor{border-radius:5px!important}
.chips span{border-radius:5px!important}

.engine-brand{display:flex;align-items:center;gap:12px}.engine-logo{width:28px;height:28px;object-fit:contain;flex:0 0 28px}.engine-kicker{letter-spacing:.04em;text-transform:none;font-size:13px}.engine-head h4{font-size:18px}
.head-badges{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.quality-badge{padding:7px 10px;font-size:12px;font-weight:800;border:1px solid var(--line);background:#f7f8ff;color:#4b5cf8}.quality-badge.perfect{background:#ecfdf3;color:#067647;border-color:#abefc6}.quality-badge.good{background:#eef4ff;color:#3538cd}.quality-badge.mid{background:#fffaeb;color:#b54708}.quality-badge.bad{background:#fff1f0;color:#b42318}
.improve-callout{grid-template-columns:auto minmax(0,1fr) 180px auto}.quality-card{border:1px solid #dfe3ff;background:#fff;padding:12px 14px;display:flex;flex-direction:column;gap:2px}.quality-card>span{font-size:11px;color:var(--muted);font-weight:700}.quality-card>strong{font-size:28px;line-height:1;color:#4b5cf8}.quality-card>small{font-size:10px;color:var(--muted);line-height:1.3}
.ace-json-editor{width:100%;height:520px;border:1px solid var(--line);background:#fff}.manual-json-box .ace-json-editor{height:320px;border:0}.final-editor{height:620px;border:0;border-top:0}.ace_editor,.ace_gutter{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace!important}.ace_gutter{background:#f7f8fb!important;color:#7c879f!important;border-right:1px solid #e6eaf3}.ace_scroller{background:#fff!important}.ace_marker-layer .ace_active-line{background:#f5f7ff!important}.ace_gutter-active-line{background:#eef1ff!important}.ace_cursor{color:#4b5cf8!important}.ace_selection{background:#dfe4ff!important}.ace_fold{background:#4b5cf8!important;border-color:#4b5cf8!important}
.json-section #schemaEditor{min-height:620px;font-size:14px;line-height:1.6;padding:0;background:#fff}
@media(max-width:900px){.improve-callout{grid-template-columns:auto 1fr}.quality-card,.improve-callout .btn{grid-column:1/-1}}


/* UI v2.4 — recent checks */
.analyzer-main-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:18px;align-items:start}
.history-card{padding:0;position:sticky;top:88px;overflow:hidden;background:#fff}
.history-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:18px;border-bottom:1px solid var(--line)}
.history-head h3{margin:2px 0 4px;font-size:18px}.history-head p{margin:0;color:var(--muted);font-size:12px}.history-clear{width:38px;height:38px;padding:0;display:grid;place-items:center;flex:0 0 38px}
.history-list{display:flex;flex-direction:column;max-height:calc(100vh - 190px);overflow:auto}
.history-item{appearance:none;border:0;border-bottom:1px solid #eef0f5;background:#fff;width:100%;padding:14px 15px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center;text-align:left;cursor:pointer;color:inherit}
.history-item:hover{background:#f8f9ff}.history-item:last-child{border-bottom:0}.history-item-main{min-width:0}.history-host{display:block;font-size:13px;font-weight:800;color:#1d2939;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-url{display:block;margin-top:3px;font-size:11px;color:#7a8699;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.history-date{display:block;margin-top:6px;font-size:10px;color:#98a2b3}.history-score{min-width:54px;padding:7px 8px;border-radius:5px;font-size:12px;font-weight:800;text-align:center;border:1px solid transparent}.history-score.perfect{background:#ecfdf3;color:#067647;border-color:#abefc6}.history-score.good{background:#eef4ff;color:#3538cd;border-color:#c7d7fe}.history-score.mid{background:#fffaeb;color:#b54708;border-color:#fedf89}.history-score.bad{background:#fff1f0;color:#b42318;border-color:#fecdca}
.history-empty{padding:34px 20px;text-align:center;color:#98a2b3}.history-empty>.material-symbols-rounded{font-size:34px;color:#c7cdd8}.history-empty b{display:block;margin-top:8px;color:#667085;font-size:13px}.history-empty p{font-size:11px;line-height:1.5;margin:5px 0 0}
@media(max-width:1280px){.analyzer-main-grid{grid-template-columns:1fr}.history-card{position:static}.history-list{max-height:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.history-item:nth-child(odd){border-right:1px solid #eef0f5}}
@media(max-width:700px){.history-list{grid-template-columns:1fr}.history-item:nth-child(odd){border-right:0}}

/* UI v2.7 — separate improvement block */
.analyzer-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
.improvement-body{padding:18px}.improvement-summary-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.improvement-panel{border:1px solid var(--line);border-radius:5px;background:#fff;overflow:hidden}.improvement-panel-head{display:flex;gap:12px;align-items:flex-start;padding:16px 18px;border-bottom:1px solid var(--line);background:#fbfcff}.improvement-panel-head>.material-symbols-rounded{color:#4b5cf8;font-size:24px}.improvement-panel-head.missing>.material-symbols-rounded{color:#b54708}.improvement-panel-head b{font-size:15px}.improvement-panel-head p{margin:4px 0 0;font-size:12px;line-height:1.45;color:var(--muted)}.improvement-list{padding:6px 18px}.improvement-row{display:grid;grid-template-columns:24px minmax(0,1fr);gap:10px;padding:12px 0;border-bottom:1px solid #eef0f5}.improvement-row:last-child{border-bottom:0}.improvement-row>.material-symbols-rounded{font-size:21px}.improvement-row.success>.material-symbols-rounded{color:#079455}.improvement-row.missing>.material-symbols-rounded{color:#f79009}.improvement-row.danger>.material-symbols-rounded{color:#d92d20}.improvement-row b{font-size:13px}.improvement-row p{margin:3px 0 0;font-size:12px;line-height:1.45;color:var(--muted)}.improvement-empty{display:flex;gap:10px;align-items:flex-start;padding:16px 0;color:#667085}.improvement-empty>.material-symbols-rounded{font-size:22px;color:#98a2b3}.improvement-empty.perfect>.material-symbols-rounded{color:#079455}.improvement-empty b{font-size:13px;color:#344054}.improvement-empty p{font-size:12px;line-height:1.45;margin:3px 0 0}.improvement-actions{display:flex;align-items:center;gap:14px;justify-content:flex-end;padding-top:18px}.improve-hint{font-size:12px;color:var(--muted);margin-right:auto}.improvement-score-flow{display:flex;align-items:center;gap:8px}.improvement-score-flow>.material-symbols-rounded{color:#98a2b3;font-size:20px}.score-pill{min-width:64px;padding:8px 10px;border-radius:5px;border:1px solid var(--line);font-size:14px;font-weight:800;text-align:center;background:#fff}.score-pill.perfect{background:#ecfdf3;color:#067647;border-color:#abefc6}.score-pill.good{background:#eef4ff;color:#3538cd;border-color:#c7d7fe}.score-pill.mid{background:#fffaeb;color:#b54708;border-color:#fedf89}.score-pill.bad{background:#fff1f0;color:#b42318;border-color:#fecdca}.score-pill.target{box-shadow:inset 0 0 0 1px #4b5cf8}.improved-result{margin-top:18px;border:1px solid #dfe3ff;border-radius:5px;overflow:hidden;background:#fff}.improved-result-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 16px;border-bottom:1px solid var(--line);background:#f8f9ff}.improved-result-head>div:first-child{display:flex;gap:10px;align-items:flex-start}.improved-result-head>.material-symbols-rounded,.improved-result-head>div:first-child>.material-symbols-rounded{color:#4b5cf8}.improved-result-head b{font-size:14px}.improved-result-head p{font-size:12px;color:var(--muted);margin:3px 0 0}.improved-editor{height:560px;border:0!important;border-radius:0!important}
@media(max-width:1000px){.improvement-summary-grid{grid-template-columns:1fr}}
@media(max-width:700px){.analyzer-tabs{grid-template-columns:1fr}.improvement-actions{align-items:stretch;flex-direction:column}.improve-hint{margin-right:0}.improvement-score-flow{width:100%;justify-content:flex-start}}

/* v2.8 tabs: underline navigation, no filled active background */
.tool-tabs{
  display:flex!important;
  align-items:stretch;
  gap:28px;
  border:0!important;
  border-bottom:1px solid var(--line)!important;
  border-radius:0!important;
  overflow:visible!important;
  background:transparent!important;
  padding:0 2px;
}
.tab{
  position:relative;
  flex:0 0 auto;
  width:auto;
  min-width:0;
  height:52px;
  padding:0 2px;
  border:0!important;
  border-radius:0!important;
  background:transparent!important;
  color:#667085!important;
  box-shadow:none!important;
  font-weight:650;
  transition:color .18s ease;
}
.tab:hover{color:#344054!important;background:transparent!important}
.tab.active{
  color:#4b5cf8!important;
  background:transparent!important;
  box-shadow:none!important;
}
.tab.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:2px;
  background:#4b5cf8;
  border-radius:0;
}
.tab .material-symbols-rounded{font-size:20px}
.improve-tab-panel{padding-top:16px}
.improve-tab-panel .improvement-section{margin:0;box-shadow:none}
@media(max-width:650px){
  .tool-tabs{display:flex!important;overflow-x:auto!important;gap:20px;scrollbar-width:none}
  .tool-tabs::-webkit-scrollbar{display:none}
  .tab{white-space:nowrap}
}

/* RU / EN switch */
.lang-switch{display:inline-flex;align-items:center;gap:2px;margin-left:auto;margin-right:10px;border:1px solid #e3e7ef;border-radius:5px;padding:2px;background:#fff}
.lang-switch a{display:flex;align-items:center;justify-content:center;min-width:36px;height:30px;padding:0 8px;border-radius:3px;text-decoration:none;color:#7b8496;font-size:12px;font-weight:700;letter-spacing:.04em;transition:.18s ease}
.lang-switch a:hover{color:#4b5cf8;background:#f5f6ff}
.lang-switch a.active{color:#4b5cf8;background:#eef0ff}
@media(max-width:900px){.lang-switch{margin-left:0}.site-header .nav{gap:10px}.site-header nav{display:none}}

/* SchemaCat brand */
.brandmark{display:inline-flex;align-items:center;justify-content:center;overflow:hidden}
.brandmark .material-symbols-rounded{font-size:21px!important;font-variation-settings:'FILL' 0,'wght' 200,'GRAD' 0,'opsz' 24}