:root{--bg:#f4f5f9;--surface:#ffffff;--surface-2:#f7f8fc;--surface-inset:#eef0f7;--text:#1b1d29;--text-muted:#5b6172;--text-faint:#8b90a3;--border:#e5e7f0;--border-strong:#d4d7e4;--accent:#4f46e5;--accent-hover:#4338ca;--accent-soft:#eef0ff;--accent-on:#ffffff;--ok:#0f9d58;--ok-soft:#e7f7ee;--ok-text:#0b7a43;--danger:#d64545;--danger-soft:#fdecec;--danger-text:#b23636;--warn-soft:#fff6e5;--warn-text:#8a5a00;--radius-sm:8px;--radius:12px;--radius-lg:16px;--radius-pill:999px;--shadow-sm:0 1px 2px rgba(20,22,40,0.05);--shadow:0 2px 8px rgba(20,22,40,0.06),0 1px 2px rgba(20,22,40,0.04);--shadow-lg:0 8px 28px rgba(20,22,40,0.10);--font-sans:system-ui,-apple-system,"Hiragino Sans","Noto Sans JP",sans-serif;--font-mono:ui-monospace,"SF Mono",SFMono-Regular,Menlo,Consolas,monospace;--header-h:56px;--page-max:1180px}*{box-sizing:border-box}body,html{margin:0;padding:0}body{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}h1,h2,h3{line-height:1.3;margin:0}code,pre{font-family:var(--font-mono)}.site-header{position:-webkit-sticky;position:sticky;top:0;z-index:10;min-height:var(--header-h);background:rgba(255,255,255,.85);-webkit-backdrop-filter:saturate(1.6) blur(8px);backdrop-filter:saturate(1.6) blur(8px);border-bottom:1px solid var(--border)}.site-header__inner{max-width:var(--page-max);margin:0 auto;min-height:var(--header-h);padding:.35rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:.75rem}.site-header__brand{display:inline-flex;align-items:center;gap:.45rem;font-weight:800;font-size:1.02rem;color:var(--text);letter-spacing:-.01em}.site-header__brand:hover{text-decoration:none}.site-header__logo{color:var(--accent);font-size:1.15rem}.site-header__nav{display:flex;align-items:center;gap:1rem;font-size:.88rem}.site-header__user{font-size:.84rem}.site-header__link-btn{background:none;border:none;color:var(--text-muted);font:inherit;font-size:.88rem;cursor:pointer;padding:0}.site-header__link-btn:hover{color:var(--text)}.site-header__logins{display:flex;align-items:center;flex-wrap:wrap;justify-content:flex-end;gap:.5rem}.site-header__github{background:#24292f;color:#fff;padding:.45rem .9rem;white-space:nowrap}.site-header__github:hover{background:#1b1f24}.site-header__google{background:#fff;color:#3c4043;border:1px solid var(--border);padding:.45rem .9rem;white-space:nowrap}.site-header__google:hover{background:#f7f8fa}.site-header__login-icon{display:inline-flex;align-items:center;font-size:1.05em;line-height:0}.site-header__no-login{font-size:.82rem;white-space:nowrap}@media (max-width:560px){.site-header__user{display:none}.site-header__github,.site-header__google{padding:.4rem .7rem;font-size:.8rem}.site-header__logins{gap:.4rem}}:root{--gutter-ad-w:clamp(160px,18vw,300px)}.side-gutter-ads{display:none;position:fixed;top:0;bottom:0;width:var(--gutter-ad-w);z-index:5;pointer-events:none}.side-gutter-ads--left{right:calc(50% + 590px + 16px)}.side-gutter-ads--right{left:calc(50% + 590px + 16px)}.side-gutter-ads__sticky{position:-webkit-sticky;position:sticky;top:88px;display:flex;flex-direction:column;gap:.75rem;padding-top:.5rem;pointer-events:auto}.side-gutter-ads__tag{font-size:.65rem;letter-spacing:.04em;color:var(--text-faint)}.gutter-ad{display:block;width:var(--gutter-ad-w);background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;text-decoration:none;transition:border-color .12s ease,box-shadow .12s ease}a.gutter-ad:hover{border-color:var(--border-strong);box-shadow:var(--shadow-sm,0 2px 8px rgba(0,0,0,.06))}.gutter-ad__img{display:block;width:100%;height:auto}.gutter-ad__text{display:flex;flex-direction:column;gap:.35rem;padding:1.1rem 1rem;min-height:240px;justify-content:center}.gutter-ad__title{font-size:.85rem;font-weight:600;color:var(--text);line-height:1.4}.gutter-ad__desc{font-size:.72rem;color:var(--text-faint);line-height:1.5}.gutter-ad--placeholder{background:var(--surface-2);border-style:dashed}.gutter-ad--adsense{min-height:240px}@media (min-width:1500px){.side-gutter-ads{display:block}}.error-page{max-width:560px;margin:4rem auto;padding:2rem 1.5rem;text-align:center}.error-page__title{font-size:1.4rem;margin-bottom:.75rem}.error-page__text{line-height:1.8;color:var(--muted,#555);margin-bottom:1.5rem}.error-page__actions{display:flex;gap:.75rem;justify-content:center;flex-wrap:wrap}.error-page__digest{margin-top:1.75rem;font-size:.8rem;color:var(--muted,#666)}.page{max-width:var(--page-max);margin:0 auto;padding:1.75rem 1.25rem 4rem}.page--narrow{max-width:780px}.muted{color:var(--text-muted)}.faint{color:var(--text-faint)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm)}.badge{display:inline-flex;align-items:center;gap:4px;font-size:.72rem;font-weight:600;padding:.15rem .55rem;border-radius:var(--radius-pill);background:var(--surface-inset);color:var(--text-muted);white-space:nowrap}.badge--beginner{background:#e8f5ee;color:#12784a}.badge--intermediate{background:#eef0ff;color:#4338ca}.badge--advanced{background:#fdeee8;color:#b4531e}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:inherit;font-size:.9rem;font-weight:600;line-height:1;padding:.6rem 1.1rem;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:background .12s ease,border-color .12s ease,opacity .12s ease}.btn:disabled{opacity:.5;cursor:not-allowed}.btn--primary{background:var(--accent);color:var(--accent-on)}.btn--primary:not(:disabled):hover{background:var(--accent-hover)}.btn--success{background:var(--ok);color:#fff}.btn--success:not(:disabled):hover{background:#0b8a4c}.btn--ghost{background:var(--surface);color:var(--text-muted);border-color:var(--border-strong)}.btn--ghost:not(:disabled):hover{background:var(--surface-2)}.btn--sm{font-size:.8rem;padding:.45rem .8rem}.btn[data-disabled]{opacity:.45;pointer-events:none}a.btn:hover{text-decoration:none}.tabs{display:flex;gap:2px;padding:3px;background:var(--surface-inset);border-radius:var(--radius-sm)}.tab{-webkit-appearance:none;-moz-appearance:none;appearance:none;border:none;background:transparent;font-family:inherit;font-size:.8rem;font-weight:600;color:var(--text-muted);padding:.35rem .7rem;border-radius:6px;cursor:pointer;white-space:nowrap;transition:background .12s ease,color .12s ease}.tabs--fill{width:100%}.tabs--fill .tab{flex:1 1}.tab:hover{color:var(--text)}.tab[aria-selected=true]{background:var(--surface);color:var(--accent);box-shadow:var(--shadow-sm)}.breadcrumb{display:flex;align-items:center;gap:.45rem;font-size:.82rem}.breadcrumb__sep{color:var(--text-faint)}.problem-head{display:flex;align-items:center;gap:.7rem;margin:.5rem 0 1.25rem}.problem-head__nav{margin-left:auto;display:flex;gap:.5rem}@media (max-width:560px){.problem-head{flex-wrap:wrap}.problem-head__nav{margin-left:0;width:100%}}.md-hint{margin:.75rem 0;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);font-size:.88rem}.md-hint>summary{cursor:pointer;padding:.55rem .9rem;font-weight:600;color:var(--accent);list-style:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.md-hint>summary::-webkit-details-marker{display:none}.md-hint>summary:before{content:"▸";display:inline-block;margin-right:.5rem;transition:transform .15s ease;color:var(--text-faint)}.md-hint[open]>summary:before{transform:rotate(90deg)}.md-hint__body{padding:0 .9rem .7rem;line-height:1.7}.md-hint__body>:first-child{margin-top:0}.md-hint__body>:last-child{margin-bottom:0}.problem-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-gap:1.25rem;gap:1.25rem;align-items:start}@media (max-width:900px){.problem-layout{grid-template-columns:minmax(0,1fr)}}.problem-col{display:grid;grid-gap:1.25rem;gap:1.25rem;min-width:0}.panel{padding:1.1rem 1.25rem 1.25rem}.panel__title{font-size:.95rem;color:var(--text-muted);margin-bottom:.75rem;font-weight:700}.panel>:first-child{margin-top:0}.panel__head{display:flex;align-items:center;justify-content:space-between;gap:.75rem;margin-bottom:.75rem}.schema-panel__title{display:flex;align-items:center;gap:.5rem}.db-badge{display:inline-flex;align-items:center;font-size:.68rem;font-weight:600;letter-spacing:.01em;color:#336791;background:rgba(51,103,145,.1);border:1px solid rgba(51,103,145,.25);border-radius:999px;padding:.12rem .5rem;white-space:nowrap}.wb-hint{font-family:var(--font-mono);font-size:.75rem;color:var(--text-faint)}.wb-actions{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-top:.85rem}.wb-actions .wb-reset{margin-left:auto}.result-meta{font-size:.82rem}.result-meta__time{font-family:var(--font-mono)}.solution-gate{padding:.4rem .1rem}.solution-gate__note{margin:0 0 .8rem;font-size:.85rem;line-height:1.7;color:var(--text-muted)}.solution-code{margin:0;padding:.8rem .9rem;background:var(--surface-inset);border:1px solid var(--border);overflow-x:auto;font-family:var(--font-mono);font-size:.85rem;line-height:1.6;white-space:pre}.notice,.solution-code{border-radius:var(--radius-sm)}.notice{padding:.7rem 1rem;background:var(--accent-soft);color:var(--accent-hover);font-size:.88rem}.verdict{display:flex;align-items:center;gap:.75rem;padding:.9rem 1.1rem;border-radius:var(--radius)}.verdict__icon{flex:0 0 auto;width:24px;height:24px;border-radius:var(--radius-pill);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;line-height:1}.verdict__title{font-weight:700;line-height:1.4}.verdict__detail{font-size:.85rem;opacity:.85;line-height:1.5}.verdict--ok{background:var(--ok-soft);color:var(--ok-text)}.verdict--ok .verdict__icon{background:var(--ok)}.verdict--ng{background:var(--danger-soft);color:var(--danger-text)}.verdict--ng .verdict__icon{background:var(--danger)}.sql-error{padding:.9rem 1rem;border-radius:var(--radius);background:var(--warn-soft);color:var(--warn-text)}.td-grid{display:flex;flex-wrap:wrap;gap:1.1rem 1.5rem;align-items:flex-start}.td-item{min-width:0}.td-caption{display:flex;align-items:baseline;gap:.6rem;margin-bottom:.4rem}.td-caption__name{font-family:var(--font-mono);font-weight:700;font-size:.9rem}.erd{position:relative;overflow-x:auto;padding:.5rem .25rem 1rem}.erd__lines{position:absolute;top:0;left:0;pointer-events:none;z-index:0}.erd__tables{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:2.5rem 5rem;align-items:flex-start}.erd-entity{background:var(--surface);border:1px solid var(--text-faint);border-radius:3px;min-width:168px;box-shadow:var(--shadow-sm)}.erd-entity__title{text-align:center;font-weight:700;font-size:.85rem;padding:.4rem .7rem;background:var(--surface-inset);border-bottom:1px solid var(--text-faint)}.erd-entity__rows{display:table;width:100%}.erd-row{display:table-row}.erd-row>span{display:table-cell;padding:.28rem .6rem;font-size:.8rem;vertical-align:middle;white-space:nowrap}.erd-row__key{width:1px;text-align:center;font-size:.66rem;font-weight:700;color:var(--text-muted);border-right:1px solid var(--border)}.erd-row__name{font-family:var(--font-mono)}.erd-row__name.is-pk{font-weight:700;text-decoration:underline}.erd-row__name.is-fk{font-weight:700}.erd-row__type{font-family:var(--font-mono);color:var(--text-faint);font-size:.72rem;text-align:right}.erd-row--pk-divider>span{border-bottom:1px solid var(--text-faint)}.erd-conn__marker,.erd-conn__path{stroke:var(--text-muted);stroke-width:1.25}.erd-conn__marker{fill:none}.erd-legend{margin-top:1.5rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface-2);font-size:.83rem}.erd-legend>summary{cursor:pointer;padding:.6rem .9rem;font-weight:600;color:var(--accent);list-style:none;-webkit-user-select:none;-moz-user-select:none;user-select:none}.erd-legend>summary::-webkit-details-marker{display:none}.erd-legend>summary:before{content:"▸";display:inline-block;margin-right:.5rem;transition:transform .15s ease;color:var(--text-faint)}.erd-legend[open]>summary:before{transform:rotate(90deg)}.erd-legend__body{padding:.2rem .95rem .95rem;display:grid;grid-gap:.85rem;gap:.85rem}.erd-legend__lead{margin:0;line-height:1.7}.erd-legend__items{list-style:none;margin:0;padding:0;display:grid;grid-gap:.4rem;gap:.4rem}.erd-legend__items li{display:flex;align-items:center;gap:.6rem}.erd-legend__items code{background:var(--surface-inset);padding:.05rem .3rem;border-radius:4px;font-size:.9em}.erd-legend__icon{flex:0 0 auto}.erd-legend__example{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;padding:.7rem .8rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm)}.erd-legend__example .erd-legend__line{width:26px;height:0;border-top:1.25px solid var(--text-muted)}.erd-legend__example p{flex:1 1 220px;font-size:.8rem;line-height:1.6}.erd-legend__pk{margin:0;line-height:1.6}.progress-card{padding:1.1rem 1.25rem;margin-top:1.25rem}.progress-card__head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:.7rem}.progress-card__num{font-size:1.7rem;font-weight:800;color:var(--accent)}.progress-card__pct{font-size:.9rem;font-weight:700;color:var(--text-muted)}.progress-bar{height:8px;background:var(--surface-inset);border-radius:var(--radius-pill);overflow:hidden}.progress-bar__fill{height:100%;background:linear-gradient(90deg,var(--accent),#6d64f0);border-radius:var(--radius-pill);transition:width .3s ease}.progress-bar--thin{height:4px}.progress-bar__seg{height:100%;transition:width .3s ease}.progress-bar__seg--basic{background:var(--accent)}.progress-bar__seg--challenge{background:#f59e0b}.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto}.dot--basic{background:var(--accent)}.dot--challenge{background:#f59e0b}.kind-bars{display:grid;grid-gap:.5rem;gap:.5rem}.kind-bar__head{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.25rem}.kind-bar__label{display:inline-flex;align-items:center;gap:.35rem;font-size:.75rem;color:var(--text-muted)}.kind-bar__count{font-size:.72rem;font-weight:700;color:var(--text-faint)}.cat-tabs{display:flex;flex-wrap:wrap;gap:.4rem;flex:0 0 auto;padding-bottom:.9rem;margin-bottom:.4rem;border-bottom:1px solid var(--border)}@media (max-width:820px){.cat-tabs{border-bottom:none;padding-bottom:0;margin-bottom:1.1rem}}.cat-tab{display:inline-flex;align-items:center;gap:.4rem;padding:.45rem .85rem;border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface);color:var(--text-muted);font-size:.85rem;font-weight:600;cursor:pointer;transition:background .15s ease,color .15s ease,border-color .15s ease}.cat-tab:hover{border-color:var(--accent);color:var(--accent-hover)}.cat-tab[aria-selected=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-on)}.cat-tab__count{font-size:.75rem;font-weight:700;opacity:.85}.mypage__h2{font-size:1.05rem;margin:1.75rem 0 .7rem}.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));grid-gap:.75rem;gap:.75rem;margin-top:.85rem}@media (max-width:560px){.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}.stat{padding:.9rem 1rem;text-align:center}.stat__num{font-size:1.5rem;font-weight:800;color:var(--accent);line-height:1.2}.stat__num--sm{font-size:1rem;font-weight:700;color:var(--text)}.stat__label{font-size:.75rem;color:var(--text-muted);margin-top:.3rem}.activity-list{list-style:none;padding:0;margin:0;display:grid;grid-gap:.5rem;gap:.5rem}.activity{display:flex;align-items:center;gap:.75rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--surface);text-decoration:none;color:inherit;transition:border-color .15s ease,background .15s ease}.activity:hover{border-color:var(--accent);background:var(--surface-2)}.activity__status{flex:0 0 auto;width:1.5rem;height:1.5rem;display:grid;place-items:center;border-radius:var(--radius-pill);background:var(--surface-inset);color:var(--text-faint);font-size:.85rem;font-weight:700}.activity__status.is-solved{background:var(--accent-soft);color:var(--accent-hover)}.activity__main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;gap:.15rem}.activity__title{font-weight:600;font-size:.92rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.activity__meta{font-size:.76rem;color:var(--text-muted)}.activity__time{flex:0 0 auto;font-size:.76rem;color:var(--text-faint);white-space:nowrap}.page--list{padding-top:1.25rem;padding-bottom:2rem}.list-intro{margin-bottom:1rem}.list-layout{display:grid;grid-template-columns:250px minmax(0,1fr);grid-gap:1.5rem;gap:1.5rem;align-items:start}.list-main{min-width:0;display:flex;flex-direction:column}.list-layout .rail{position:-webkit-sticky;position:sticky;top:calc(var(--header-h) + 1rem)}.list-main .cat-tabs{position:-webkit-sticky;position:sticky;top:var(--header-h);z-index:5;background:var(--bg)}.list-scroll{max-height:calc(100vh - var(--header-h) - 18rem);overflow-y:auto;padding-right:.35rem}@media (max-width:820px){.list-layout{grid-template-columns:minmax(0,1fr);display:block}.list-layout .rail,.list-main .cat-tabs{position:static}.list-scroll{max-height:none;overflow:visible;padding-right:0}}.list-section-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:.6rem}.problem-part+.problem-part{margin-top:1.1rem}.problem-part__head{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;margin:0 .15rem .4rem}.problem-part__label{font-size:.8rem;font-weight:700;color:var(--text-muted)}.rail{position:-webkit-sticky;position:sticky;top:calc(var(--header-h) + 1rem)}@media (max-width:820px){.rail{position:static}}.rail__card{padding:1.1rem 1.25rem}.rail__label{font-size:.78rem;font-weight:700;color:var(--text-muted)}.rail__overall{display:flex;align-items:baseline;justify-content:space-between;margin-top:.2rem}.rail__num{font-size:1.7rem;font-weight:800;color:var(--accent);line-height:1.2}.rail__den{font-size:.95rem;color:var(--text-faint);font-weight:700}.rail__pct{font-size:.9rem;font-weight:700;color:var(--text-muted)}.rail__overall+.progress-bar{margin-top:.5rem}.rail__cats{margin-top:1.1rem;border-top:1px solid var(--border);padding-top:.9rem;display:grid;grid-gap:.85rem;gap:.85rem}.rail__cat-head{display:flex;align-items:baseline;justify-content:space-between;gap:.5rem;margin-bottom:.3rem}.rail__cat-name{font-size:.85rem;font-weight:600;color:var(--text-muted)}.rail__next{margin-top:1.1rem;border-top:1px solid var(--border);padding-top:.9rem;font-size:.78rem;color:var(--text-faint);line-height:1.6}.rail__next-link{color:var(--accent);font-weight:600}.problem-list{overflow:hidden}.problem-row{display:flex;align-items:center;gap:.75rem;padding:.7rem 1.1rem;color:inherit;text-decoration:none;transition:background .12s ease}.problem-row+.problem-row{border-top:1px solid var(--border)}.problem-row:hover{text-decoration:none}.problem-row--next,.problem-row:hover{background:var(--surface-2)}.problem-row__status{flex:0 0 auto;width:18px;height:18px;border-radius:var(--radius-pill);display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;line-height:1;box-sizing:border-box}.problem-row__status.is-solved{background:var(--ok);color:#fff}.problem-row__status.is-unsolved{border:1.5px solid var(--border-strong);background:var(--surface)}.problem-row--next .problem-row__status.is-unsolved{border-color:var(--accent)}.problem-row__status.is-guest{visibility:hidden}.problem-row__num{flex:0 0 auto;font-family:var(--font-mono);font-size:.75rem;color:var(--text-faint)}.problem-row__title{flex:1 1 auto;font-weight:600;font-size:.92rem;min-width:0}.problem-row__chevron{flex:0 0 auto;color:var(--text-faint);font-size:1rem;line-height:1}.tag-next{display:inline-flex;align-items:center;font-size:.68rem;font-weight:700;padding:.1rem .45rem;border-radius:var(--radius-pill);background:var(--accent-soft);color:var(--accent-hover);vertical-align:middle;margin-left:.4rem}.problem-card{display:flex;align-items:center;gap:.75rem;padding:.85rem 1.1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-sm);color:inherit;text-decoration:none;transition:border-color .12s ease,box-shadow .12s ease,transform .12s ease}.problem-card:hover{text-decoration:none;border-color:var(--border-strong);box-shadow:var(--shadow);transform:translateY(-1px)}.problem-card__status{flex:0 0 auto;width:1.25rem;text-align:center;font-size:.95rem;line-height:1}.problem-card__title{flex:1 1 auto;font-weight:600;min-width:0}.data-table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-sm)}.data-table{border-collapse:collapse;width:100%;font-size:.85rem}.data-table-wrap--fit{display:inline-block;max-width:100%;vertical-align:top}.data-table--fit{width:auto}.data-table td,.data-table th{text-align:left;padding:.5rem .75rem;border-bottom:1px solid var(--border);border-right:1px solid var(--border);white-space:nowrap}.data-table td:last-child,.data-table th:last-child{border-right:none}.data-table th{background:var(--surface-2);font-weight:600;color:var(--text-muted);position:-webkit-sticky;position:sticky;top:0}.data-table tbody tr:last-child td,.data-table tr:last-child td{border-bottom:none}.data-table td.is-num{font-feature-settings:"tnum";font-variant-numeric:tabular-nums;text-align:right}.data-table .is-null{color:var(--text-faint);font-style:italic}body{display:flex;flex-direction:column;min-height:100vh}.app-main{flex:1 0 auto}.site-footer{flex-shrink:0;border-top:1px solid var(--border);background:var(--surface);margin-top:2rem}.site-footer__inner{max-width:var(--page-max);margin:0 auto;padding:2.25rem 1.25rem;display:flex;flex-direction:column;align-items:center;text-align:center;gap:1rem}.site-footer__brand{font-weight:700;font-size:1.35rem;letter-spacing:.02em;color:var(--text)}.site-footer__nav{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem 1.5rem}.site-footer__nav a{color:var(--text-muted);font-size:.88rem}.site-footer__nav a:hover{color:var(--accent)}.site-footer__copy{margin:0;font-size:.8rem}.legal__title{font-size:1.6rem;letter-spacing:-.01em;margin-bottom:.5rem}.legal__updated{font-size:.85rem;margin:0 0 1.25rem}.legal__lead{margin-bottom:1.5rem}.legal__disclaimer{background:var(--surface-inset);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius-sm);padding:.85rem 1rem;font-size:.86rem;color:var(--text-muted);line-height:1.7;margin-bottom:1.75rem}.legal__disclaimer code{font-family:var(--font-mono);font-size:.82em;background:var(--surface);padding:.05em .35em;border-radius:4px}.legal__section{margin-top:1.75rem}.legal__section h2{font-size:1.08rem;letter-spacing:-.005em;margin-bottom:.55rem}.legal__section p{margin:0 0 .75rem}.legal__list{margin:.4rem 0 .75rem;padding-left:1.25rem;line-height:1.8}.legal__list li{margin-bottom:.35rem}.legal__note{font-size:.85rem;margin-top:.5rem}.legal__contact{font-family:var(--font-mono);font-size:.86rem;line-height:1.9;color:var(--text-muted)}.legal__inline-link{color:var(--accent)}.about{max-width:960px;display:flex;flex-direction:column;gap:1.25rem}.about__inline-link{color:var(--accent)}.about__hero{display:grid;grid-template-columns:minmax(0,1fr) 260px;grid-gap:1.75rem;gap:1.75rem;align-items:center;padding:1.75rem}.about__hero-title{margin:0 0 .6rem;font-size:1.6rem;letter-spacing:-.01em;line-height:1.3}.about__hero-lead{margin:0 0 1rem;color:var(--text-muted);line-height:1.75}.about__hero-cta{font-size:.9rem}.about__code{background:var(--surface-2);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.9rem 1rem;font-family:var(--font-mono);font-size:.78rem;line-height:1.8;color:var(--text-muted)}.about__kw{color:var(--accent);font-weight:700}.about__code-ok{margin-top:.5rem;display:inline-flex;align-items:center;gap:5px;font-size:.72rem;font-weight:700;color:var(--ok-text);background:var(--ok-soft);border-radius:var(--radius-pill);padding:.15rem .55rem}.about__cols{display:grid;grid-template-columns:1fr 1fr;grid-gap:.75rem;gap:.75rem}.about__card{padding:1.25rem 1.4rem}.about__h2{margin:0 0 .75rem;font-size:1.02rem;letter-spacing:-.005em}.about__checks{list-style:none;margin:0;padding:0;display:grid;grid-gap:.55rem;gap:.55rem;font-size:.88rem;color:var(--text)}.about__checks li{display:flex;gap:.6rem;align-items:flex-start}.about__check{flex:0 0 auto;margin-top:3px;width:15px;height:15px;border-radius:var(--radius-pill);background:var(--ok-soft);color:var(--ok-text);display:inline-flex;align-items:center;justify-content:center;font-size:9px;font-weight:700}.about__timeline{list-style:none;margin:0;padding:0}.about__step{display:flex;gap:.8rem;font-size:.88rem}.about__step-num{flex:0 0 22px;align-self:stretch;display:flex;justify-content:center;position:relative}.about__step-num:before{content:attr(data-step);position:relative;z-index:1;width:22px;height:22px;border-radius:var(--radius-pill);background:var(--accent-soft);color:var(--accent-hover);display:inline-flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}.about__step:not(:last-child) .about__step-num:after{content:"";position:absolute;top:22px;bottom:-.7rem;left:50%;transform:translateX(-50%);width:2px;background:var(--border)}.about__step:not(:last-child){padding-bottom:.7rem}.about__step-text{padding-top:.15rem}.about__login p{margin:0 0 .6rem;font-size:.92rem;color:var(--text)}.about__login p:last-child{margin-bottom:0}.about__note{font-size:.8rem}.about__db-note{margin:0;background:var(--surface-2);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:var(--radius-sm);padding:.85rem 1rem;font-size:.86rem;color:var(--text-muted);line-height:1.7}.about__db-badge{font-family:var(--font-mono);font-weight:700;background:var(--surface);border-radius:4px;padding:.05em .35em}@media (max-width:720px){.about__cols,.about__hero{grid-template-columns:minmax(0,1fr)}}