:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;--font-ui:Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--font-mono:"Cascadia Code", "SFMono-Regular", Consolas, monospace;--bg:#f4f7fb;--surface:#fff;--surface-soft:#f7f9fc;--surface-raised:#fff;--ink:#172033;--muted:#60708a;--line:#d7deea;--line-strong:#b7c3d6;--brand:#165dcc;--brand-dark:#0f49a8;--brand-pale:#edf4ff;--paper:var(--surface);--paper-soft:var(--surface-soft);--primary:var(--brand);--accent-strong:var(--brand-dark);--green:#137a55;--green-pale:#e8f6ef;--amber:#9a6200;--amber-pale:#fff5d9;--red:#b4232d;--red-pale:#fff0f1;--success:var(--green);--warning:var(--amber);--danger:var(--red);--info:#245caa;--focus:#165dcc47;--radius-sm:4px;--radius-md:6px;--radius-lg:10px;--shadow:0 12px 32px #1d31521a;--content-width:1180px;background:#f4f7fb;font-family:Inter,PingFang SC,Microsoft YaHei,system-ui,sans-serif}:root[data-theme=teal]{--bg:#f2f8f7;--surface-soft:#f4faf9;--ink:#153331;--muted:#56716e;--line:#cfdfdc;--line-strong:#a8c5c0;--brand:#0f766e;--brand-dark:#0a5b56;--brand-pale:#e8f7f4;--info:#146d83;--focus:#0f766e42}:root[data-theme=graphite]{--bg:#f3f4f6;--surface-soft:#f7f7f8;--ink:#1f2937;--muted:#667085;--line:#d5d8de;--line-strong:#adb3bd;--brand:#4b5563;--brand-dark:#303846;--brand-pale:#eceff2;--info:#3c5a78;--focus:#4b556347}*{box-sizing:border-box}html{background:var(--bg);min-width:320px}body{background:var(--bg);min-width:320px;min-height:100vh;color:var(--ink);margin:0}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:var(--brand);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--brand-dark)}:focus-visible{outline:3px solid var(--focus);outline-offset:2px}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.035em}pre{white-space:pre-wrap;overflow-wrap:anywhere}#root{min-height:100vh}::selection{background:color-mix(in srgb, var(--brand) 24%, transparent)}.auth-layout{background:radial-gradient(circle at 12% 15%,#7a1f2b24,#0000 30rem),linear-gradient(135deg,#f3eee9 0%,#f8f7f4 55%,#ece9e4 100%);grid-template-columns:minmax(320px,1fr) minmax(420px,560px);align-items:center;gap:clamp(3rem,8vw,9rem);min-height:100vh;padding:clamp(2rem,7vw,7rem);display:grid}.problem-lists-page .card-grid{margin-top:1.5rem}.home-page{max-width:1240px}.home-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:1rem;display:grid}.home-panel{border:1px solid var(--line);background:#fff;border-radius:1rem;min-width:0;padding:1.35rem;box-shadow:0 10px 32px #28231f0b}.home-panel h2{margin-top:0}.home-panel .empty-state{min-height:8rem}.home-list{gap:.8rem;margin:0;padding:0;list-style:none;display:grid}.home-list li{border-bottom:1px solid var(--line);padding-bottom:.8rem}.home-list li:last-child{border-bottom:0}.home-list li>div{align-items:center;gap:.6rem;display:flex}.home-list p{color:var(--muted);margin:.35rem 0 0}.checkin-panel{background:linear-gradient(145deg, #fff 0%, var(--brand-pale) 100%)}.home-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:.6rem;margin:1rem 0;display:grid}.home-metrics span{color:var(--muted);background:#ffffffb8;border-radius:.65rem;padding:.75rem;font-size:.78rem}.home-metrics strong{color:var(--ink);font-size:1.45rem;display:block}.level-important,.level-urgent{background:var(--amber-pale);color:var(--amber)}.level-urgent{background:var(--red-pale);color:var(--red)}.profile-page{max-width:1180px}.profile-hero{border:1px solid var(--line);background:linear-gradient(135deg, #fff 0%, var(--brand-pale) 100%);border-radius:1.2rem;grid-template-columns:auto 1fr auto;align-items:center;gap:1.2rem;padding:clamp(1.3rem,4vw,2.2rem);display:grid}.profile-hero h1{margin:0 0 .35rem;font-family:Georgia,Noto Serif SC,serif;font-size:clamp(2rem,4vw,3.4rem)}.profile-hero p{color:var(--muted);margin:0}.profile-initial{background:var(--brand);color:#fff;border-radius:1rem;place-items:center;width:4.5rem;height:4.5rem;font-size:1.8rem;font-weight:800;display:grid}.profile-private{margin-top:1rem}.profile-statistics,.profile-contributions{margin-top:2.5rem}.section-heading{justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1rem;display:flex}.section-heading h2{margin:0}.section-heading>p{max-width:36rem;color:var(--muted);text-align:right;margin:0}.profile-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:.8rem;display:grid}.profile-metric{border:1px solid var(--line);background:#fff;border-radius:.8rem;padding:1.2rem}.profile-metric span,.profile-metric small{color:var(--muted);display:block}.profile-metric strong{margin:.25rem 0;font-size:2rem;display:block}.difficulty-layout{grid-template-columns:minmax(260px,.8fr) minmax(480px,1.2fr);gap:1rem;margin-top:1rem;display:grid}.difficulty-bars{border:1px solid var(--line);background:#fff;border-radius:.8rem;gap:.8rem;padding:1rem;display:grid}.difficulty-bars>div{grid-template-columns:4.5rem 1fr auto;align-items:center;gap:.7rem;display:grid}.difficulty-bars div div{background:#eceeed;border-radius:999px;height:.55rem;overflow:hidden}.difficulty-bars i{border-radius:inherit;background:var(--brand);height:100%;display:block}.difficulty-layout table{background:#fff;min-width:480px}.contribution-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.contribution-card{min-width:0}.contribution-card ul{gap:.75rem;min-height:13rem;margin:1rem 0;padding:0;list-style:none;display:grid}.contribution-card li{border-bottom:1px solid var(--line);padding-bottom:.75rem}.contribution-card li a{overflow-wrap:anywhere;font-weight:750}.contribution-card li small{color:var(--muted);margin-top:.25rem;display:block}.pagination.compact{padding-inline:0}.problem-list-items{gap:.85rem;padding:0;list-style:none;display:grid}.problem-list-items .content-card{grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;display:grid}.problem-list-items h2{margin:0;font-size:1.05rem}.picker-list{gap:.55rem;max-height:20rem;margin:1rem 0;display:grid;overflow:auto}.picker-list label{align-items:center;gap:.55rem;display:flex}.danger-zone{background:#fff9f8;border:1px solid #e8b5b0;border-radius:12px;margin-top:2rem;padding:1.25rem}@media (width<=720px){.problem-list-items .content-card{grid-template-columns:1fr}}.auth-layout.single{grid-template-columns:minmax(300px,760px);justify-content:center}.auth-brand{max-width:670px}.auth-brand h1{margin:1.4rem 0;font-family:Georgia,Noto Serif SC,serif;font-size:clamp(2.7rem,5.8vw,5.6rem);line-height:1.05}.auth-brand>p:last-child{color:var(--muted);font-size:1.08rem}.brand-mark{flex:none;place-items:center;width:4.5rem;height:4.5rem;display:inline-grid}.brand-mark.small{width:2.4rem;height:2.4rem}.brand-mark img{object-fit:contain;width:100%;height:100%;display:block}.eyebrow{color:var(--brand);letter-spacing:.16em;text-transform:uppercase;margin-bottom:.55rem;font-size:.75rem;font-weight:800}.auth-card,.content-card,.table-card,.filter-panel{box-shadow:var(--shadow);background:#fffffff0;border:1px solid #4c443d1f;border-radius:1rem}.auth-card{padding:clamp(1.6rem,5vw,3.25rem)}.auth-card h1,.auth-card h2{margin-bottom:.7rem;font-size:clamp(1.8rem,4vw,2.5rem)}.auth-card.wide{max-width:760px}.auth-switch{text-align:center;color:var(--muted);margin:1.4rem 0 0}.stack-form{gap:1rem;margin-top:1.5rem;display:grid}.stack-form.two-column{grid-template-columns:repeat(2,minmax(0,1fr))}.stack-form .full{grid-column:1/-1}label{color:#3c464d;gap:.45rem;font-size:.88rem;font-weight:650;display:grid}input,select,textarea{width:100%;color:var(--ink);background:#fff;border:1px solid #cdd1d0;border-radius:.55rem;padding:.7rem .8rem;transition:border-color .16s,box-shadow .16s}textarea{resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px #7a1f2b1a}.button{cursor:pointer;border:1px solid #0000;border-radius:.55rem;justify-content:center;align-items:center;min-height:2.55rem;padding:.62rem 1rem;font-weight:750;text-decoration:none;display:inline-flex}.button:disabled{opacity:.58;cursor:not-allowed}.button.primary{color:#fff;background:var(--brand);box-shadow:0 7px 16px #7a1f2b29}.button.primary:hover{color:#fff;background:var(--brand-dark)}.button.secondary{border-color:var(--brand);color:var(--brand);background:#fff}.button.quiet{color:var(--ink);background:0 0;border-color:#d8dbd9}.button-row{flex-wrap:wrap;align-items:center;gap:.65rem;display:flex}.alert,.notice{background:var(--amber-pale);color:#68470f;border:1px solid #ead294;border-radius:.58rem;padding:.8rem 1rem}.alert-error{background:var(--red-pale);color:#76242a;border-color:#edc1c5}.app-frame{min-height:100vh}.topbar{z-index:20;border-bottom:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#faf9f7f0;grid-template-columns:1fr auto 1fr;align-items:center;gap:2rem;height:4.5rem;padding:0 clamp(1rem,4vw,4rem);display:grid;position:sticky;top:0}.brand{color:var(--ink);align-items:center;gap:.7rem;font-weight:850;text-decoration:none;display:flex}.topbar nav{align-items:center;gap:.35rem;display:flex}.topbar nav a{color:#596269;border-radius:.5rem;padding:.58rem .85rem;font-weight:680;text-decoration:none}.user-menu{justify-self:end;align-items:center;gap:.8rem;font-size:.9rem;display:flex}.notice{max-width:1180px;margin:1rem auto}.page-shell{width:min(1180px,100% - 2rem);margin:0 auto;padding:3rem 0 5rem}.page-heading{justify-content:space-between;align-items:end;gap:2rem;margin-bottom:1.7rem;display:flex}.page-heading.compact{align-items:center}.page-heading h1{margin-bottom:.6rem;font-family:Georgia,Noto Serif SC,serif;font-size:clamp(2.2rem,4vw,3.4rem)}.page-heading p:last-child{color:var(--muted);margin-bottom:0}.filter-panel{box-shadow:none;margin-bottom:1.3rem;padding:1rem}.search-row,.filter-row{flex-wrap:wrap;align-items:end;gap:.8rem;display:flex}.search-row .grow{flex:320px}.filter-row{margin-top:.8rem}.filter-row label{flex:180px;min-width:180px}.responsive-table{overflow-x:auto}.table-card{overflow:hidden}table{border-collapse:collapse;width:100%;min-width:760px}th{text-align:left;background:var(--paper-soft);color:var(--muted);letter-spacing:.04em;text-transform:uppercase;padding:.8rem 1rem;font-size:.75rem}td{vertical-align:middle;border-top:1px solid #eceeeb;padding:1rem;font-size:.9rem}.problem-code{color:var(--muted);font-family:ui-monospace,monospace}.problem-link{color:var(--ink);font-weight:750}.tag-list{flex-wrap:wrap;gap:.3rem;display:flex}.tag{color:#525c62;background:#eef0ef;border-radius:999px;padding:.2rem .48rem;font-size:.72rem}.difficulty{font-weight:750}.difficulty.easy{color:var(--green)}.difficulty.medium{color:var(--amber)}.difficulty.hard{color:var(--red)}.pagination{border-top:1px solid var(--line);color:var(--muted);justify-content:space-between;align-items:center;padding:.9rem 1rem;font-size:.85rem;display:flex}.center-state,.empty-state{text-align:center;min-height:18rem;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:.8rem;padding:2rem;display:flex}.empty-state h2{color:var(--ink);margin:0}.spinner{border:2px solid #ddd;border-top-color:var(--brand);border-radius:50%;width:1.5rem;height:1.5rem;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.status-badge{color:#536067;white-space:nowrap;background:#edf0ef;border-radius:999px;align-items:center;gap:.4rem;padding:.34rem .58rem;font-size:.76rem;font-weight:780;display:inline-flex}.status-dot{background:currentColor;border-radius:50%;width:.4rem;height:.4rem}.status-badge.success{background:var(--green-pale);color:var(--green)}.status-badge.active{background:var(--amber-pale);color:var(--amber)}.status-badge.danger{background:var(--red-pale);color:var(--red)}.problem-workspace{grid-template-columns:minmax(0,1.08fr) minmax(450px,.92fr);min-height:calc(100vh - 4.5rem);display:grid}.statement-pane{background:var(--paper);border-right:1px solid var(--line);padding:clamp(1.5rem,4vw,4rem);overflow-x:hidden}.problem-header{border-bottom:1px solid var(--line);margin-bottom:2rem;padding-bottom:1.8rem}.problem-header h1{font-family:Georgia,Noto Serif SC,serif;font-size:clamp(2rem,4vw,3.2rem)}.problem-meta{flex-wrap:wrap;gap:.55rem;display:flex}.problem-meta span{color:#4f595e;background:#f1f2f0;border-radius:.4rem;padding:.32rem .55rem;font-size:.78rem}.back-link{margin-bottom:1.5rem;text-decoration:none;display:inline-block}.statement-pane article>h2{border-left:3px solid var(--brand);margin:2.2rem 0 .8rem;padding-left:.75rem;font-size:1.15rem}.markdown-body{overflow-wrap:anywhere;line-height:1.8}.markdown-body pre,.sample pre,.diagnostic{color:#e7ece9;background:#171b1e;border-radius:.55rem;padding:1rem;overflow-x:auto}.markdown-body table{min-width:0;display:block;overflow-x:auto}.markdown-body img{border-radius:.4rem;max-width:100%;height:auto}.image-fallback,.image-loading{color:var(--muted);border:1px dashed #c8cdca;padding:.8rem;display:inline-flex}.sample{border:1px solid var(--line);border-radius:.7rem;margin-bottom:1rem;padding:1rem}.sample-grid{grid-template-columns:1fr 1fr;gap:.8rem;display:grid}.sample pre{min-height:4rem;margin-bottom:0}.source,.muted{color:var(--muted)}.editor-pane{color:#fff;background:#15191c;grid-template-rows:auto 1fr auto;height:calc(100vh - 4.5rem);display:grid;position:sticky;top:4.5rem}.editor-toolbar,.submit-bar{background:#202529;border-bottom:1px solid #343b3f;justify-content:space-between;align-items:center;gap:1rem;padding:.8rem 1rem;display:flex}.editor-toolbar label{color:#cfd5d2;grid-template-columns:auto 170px;align-items:center}.editor-toolbar select{color:#fff;background:#2b3135;border-color:#4a5257}.draft-indicator{color:#9ea8a3;font-size:.78rem}.editor-wrap{min-height:350px}.submit-bar{border-top:1px solid #343b3f;border-bottom:0}.inline-message{color:#f0cfd3;font-size:.82rem}.settings-grid{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:1rem;display:grid}.content-card{box-shadow:none;padding:1.4rem}.content-card h2{font-size:1.15rem}.detail-list{margin:1.2rem 0;display:grid}.detail-list>div{border-bottom:1px solid #eceeeb;grid-template-columns:8rem 1fr;gap:1rem;padding:.65rem 0;display:grid}.detail-list dt{color:var(--muted)}.detail-list dd{overflow-wrap:anywhere;margin:0;font-weight:650}.request-list{gap:.5rem;margin-top:1rem;display:grid}.request-row{border:1px solid var(--line);border-radius:.55rem;grid-template-columns:1fr auto auto;align-items:center;gap:.7rem;padding:.75rem;display:grid}.request-row small{color:var(--muted);margin-top:.2rem;display:block}.request-row p{color:var(--muted);grid-column:1/-1;margin:0}.confirm-form{border-top:1px solid var(--line);padding-top:1rem}.metric-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:.7rem;margin-bottom:1rem;display:grid}.metric-grid>div{border:1px solid var(--line);background:#fff;border-radius:.65rem;padding:.9rem}.metric-grid span{color:var(--muted);margin-bottom:.4rem;font-size:.74rem;display:block}.metric-grid strong{overflow-wrap:anywhere;font-size:.98rem}.page-shell>.content-card{margin-top:1rem}.readonly-editor{border-radius:.6rem;overflow:hidden}.point-grid{grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:.6rem;display:grid}.point-grid article{border:1px solid var(--line);border-radius:.5rem;grid-template-columns:auto 1fr;gap:.45rem;padding:.75rem;display:grid}.point-grid small{color:var(--muted);grid-column:1/-1}.admin-page{gap:1.1rem;display:grid}.filter-bar{border:1px solid var(--line);background:#fff;border-radius:.8rem;flex-wrap:wrap;align-items:end;gap:.8rem;padding:1rem;display:flex}.filter-bar label{flex:180px}.admin-section{border:1px solid var(--line);background:#fff;border-radius:.85rem;padding:1.2rem;box-shadow:0 8px 28px #28231f09}.admin-section>h2{margin-top:0;font-size:1.15rem}.table-wrap{overflow-x:auto}.table-wrap td small{color:var(--muted);margin-top:.25rem;display:block}.button.small{min-height:2rem;padding:.35rem .65rem;font-size:.8rem}button.danger,.button.danger{color:var(--red);background:var(--red-pale);border:1px solid #d7aeb2;border-radius:.5rem;padding:.55rem .75rem;font-weight:700}.form-error{background:var(--red-pale);color:#76242a;border:1px solid #edc1c5;border-radius:.58rem;padding:.8rem 1rem}.review-list,.image-admin-list{gap:.7rem;padding:0;list-style:none;display:grid}.review-list li{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 0;display:flex}.review-list p{color:var(--muted);margin:.3rem 0 0}.file-field{border:1px dashed #b6bcb9;border-radius:.6rem;align-items:center;gap:.7rem;margin:.5rem 0 1rem;padding:.75rem;display:inline-flex}.file-field input{border:0;padding:0}.credential-dialog{z-index:50;max-width:min(460px,100vw - 2rem);box-shadow:var(--shadow);border:1px solid #d2b6b9;border-radius:.9rem;padding:1.25rem;position:fixed;inset:auto 1rem 1rem auto}.credential-dialog li{justify-content:space-between;gap:1rem;margin:.5rem 0;display:flex}.status-chip{color:#536067;background:#edf0ef;border-radius:999px;padding:.25rem .55rem;font-size:.76rem;font-weight:750;display:inline-flex}.status-published,.status-APPROVED{background:var(--green-pale);color:var(--green)}.status-pending_review,.status-PENDING{background:var(--amber-pale);color:var(--amber)}.status-hidden,.status-REJECTED,.status-SUPERSEDED{background:var(--red-pale);color:var(--red)}.editor-admin-page{max-width:1500px}.management-grid{grid-template-columns:minmax(0,1fr) minmax(330px,430px);align-items:start;gap:1rem;display:grid}.admin-aside{gap:1rem;max-height:calc(100vh - 6.5rem);display:grid;position:sticky;top:5.5rem;overflow-y:auto}.problem-form{gap:1rem;display:grid}.form-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem;display:grid}.editor-preview{grid-template-columns:1fr 1fr;align-items:start;gap:1rem;display:grid}.editor-preview>div{gap:.8rem;display:grid}.preview-card{border:1px solid var(--line);background:var(--paper-soft);border-radius:.7rem;min-height:24rem;padding:1rem;overflow-x:hidden}.tag-options{flex-wrap:wrap;gap:.55rem;display:flex}.tag-options label{border:1px solid var(--line);border-radius:999px;align-items:center;gap:.35rem;padding:.35rem .6rem;display:flex}.tag-options input{width:auto}.image-admin-list li{border-bottom:1px solid var(--line);gap:.5rem;padding-bottom:.8rem;display:grid}.image-admin-list img{object-fit:contain;background:var(--paper-soft);max-width:100%;max-height:180px}.image-admin-list code{overflow-wrap:anywhere;color:var(--muted)}.point-list{gap:.6rem;display:grid}.point-card{border:1px solid var(--line);border-radius:.65rem;grid-template-columns:repeat(3,minmax(0,1fr));gap:.55rem;padding:.75rem;display:grid}.point-card h3,.point-card .button-row{grid-column:1/-1}.advanced-judge-panel textarea{width:100%;font-family:var(--font-mono,monospace)}.advanced-judge-panel .inline-check{align-items:center;gap:.55rem;margin:1rem 0;display:flex}.subtask-editor{gap:.75rem;margin:1rem 0;display:grid}@media (width<=900px){.auth-layout{grid-template-columns:1fr;gap:2rem}.auth-brand h1{font-size:3rem}.topbar{grid-template-columns:1fr auto;height:auto;min-height:4.2rem;padding-block:.6rem}.topbar nav{grid-area:2/1/auto/-1;justify-content:center;overflow-x:auto}.user-menu>span{display:none}.problem-workspace{grid-template-columns:1fr}.editor-pane{height:min(72vh,720px);position:relative;top:auto}.statement-pane{border-right:0}.settings-grid{grid-template-columns:1fr}.metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.management-grid,.editor-preview,.difficulty-layout,.contribution-grid{grid-template-columns:1fr}.admin-aside{max-height:none;position:static}}@media (width<=560px){.auth-layout{padding:1rem}.auth-brand{display:none}.stack-form.two-column,.sample-grid{grid-template-columns:1fr}.topbar{gap:.5rem;padding-inline:.75rem}.topbar nav a{padding:.5rem .55rem;font-size:.83rem}.page-shell{width:min(100% - 1rem,1180px);padding-top:1.7rem}.page-heading{flex-direction:column;align-items:start}.statement-pane{padding:1.2rem}.editor-toolbar{flex-direction:column;align-items:stretch}.draft-indicator{display:none}.metric-grid{grid-template-columns:1fr 1fr}.detail-list>div{grid-template-columns:1fr;gap:.2rem}.pagination{gap:.3rem;font-size:.72rem}.form-grid,.point-card{grid-template-columns:1fr}.review-list li{flex-direction:column;align-items:start}.profile-hero{grid-template-columns:auto 1fr}.profile-hero .button{grid-column:1/-1}.profile-metrics,.home-grid,.home-metrics{grid-template-columns:1fr}.section-heading{flex-direction:column;align-items:start}.section-heading>p{text-align:left}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}.management-shortcut{background:var(--surface-soft);border-bottom:1px solid var(--line);padding:.55rem max(1rem,50vw - 590px)}.management-shortcut a{color:var(--accent-strong);font-weight:650}.permission-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:.55rem;margin:.75rem 0;display:grid}.contest-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1rem;display:grid}.contest-grid .pagination{grid-column:1/-1}.contest-card{border:1px solid var(--line);background:#fff;border-radius:.8rem;min-width:0;padding:1.2rem;box-shadow:0 8px 24px #28231f0a}.contest-card h2{margin:.85rem 0 .55rem;font-size:1.2rem}.contest-card p,.contest-card small{color:var(--muted)}.contest-problems{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:.7rem;display:grid}.contest-problems a{border:1px solid var(--line);min-width:0;color:var(--ink);border-radius:.65rem;grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;padding:.9rem;text-decoration:none;display:grid}.contest-problems a:hover{border-color:var(--brand);background:var(--brand-pale)}.contest-problems strong{background:var(--brand);color:#fff;border-radius:.45rem;place-items:center;width:2rem;height:2rem;display:grid}.contest-problems span{overflow-wrap:anywhere;font-weight:700}.contest-problems small{color:var(--muted);white-space:nowrap}.permission-grid label{border:1px solid var(--line);border-radius:.55rem;align-items:flex-start;gap:.55rem;padding:.65rem;display:flex}.permission-grid small,.rbac-columns small{color:var(--muted);overflow-wrap:anywhere;display:block}.rbac-columns{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;margin-top:1rem;display:grid}.rbac-columns>div{border:1px solid var(--line);background:var(--surface);border-radius:.75rem;min-width:0;padding:1rem}.rbac-columns code{white-space:pre-wrap;overflow-wrap:anywhere;display:block}@media (width<=760px){.rbac-columns{grid-template-columns:1fr}}.public-rank-shell{color:#18231f;background:#f4f1e9;min-height:100vh;padding:clamp(1.25rem,4vw,4rem)}.public-rank-heading{justify-content:space-between;align-items:end;gap:1.5rem;max-width:1100px;margin:0 auto 1.5rem;display:flex}.public-rank-shell .responsive-table,.public-rank-shell .empty-state{background:#fffdf8;border:1px solid #d8d2c4;border-radius:18px;max-width:1100px;margin-inline:auto;box-shadow:0 12px 40px #1f2a2414}.public-rank-shell table{width:100%}.privacy-note,.public-rank-footer{color:#5b655f;max-width:1100px;margin:1rem auto;font-size:.92rem}.visibility-panel{border-left:4px solid #315f4d}.visibility-actions{flex-wrap:wrap;align-items:center;gap:.75rem;display:flex}.visibility-actions>div{margin-right:auto}.visibility-actions p{margin:.25rem 0 0}.credential-once{background:#fff8e8;border:1px solid #d39d42;border-radius:12px;gap:.75rem;margin-top:1rem;padding:1rem;display:grid}.credential-once code{overflow-wrap:anywhere;-webkit-user-select:all;user-select:all}.phase-pill{letter-spacing:.05em;background:#e7ece8;border-radius:999px;padding:.35rem .7rem;font-size:.78rem}.phase-frozen{background:#f7e2b5}.phase-hidden{background:#e5e5e5}.phase-revealed{background:#d9eadf}.phase-rolling{background:#dce8ff}.phase-correction{background:#f7e2b5}.rolling-control,.rolling-spectator{border:1px solid var(--line);background:color-mix(in srgb, var(--surface) 92%, var(--brand));border-radius:.85rem;gap:.75rem;padding:1rem;display:grid}.rolling-spectator{max-width:1100px;margin:1rem auto}.rolling-spectator progress{width:min(28rem,100%)}.rolling-events{color:var(--muted);margin:0;padding-left:1.5rem}.rolling-event-summary{color:var(--muted);margin-top:.75rem}.reveal-highlight{outline:2px solid var(--brand);outline-offset:-2px;animation:1.2s ease-out reveal-pulse}@keyframes reveal-pulse{0%{background:color-mix(in srgb, var(--brand) 22%, transparent)}to{background:0 0}}@media (width<=680px){.public-rank-heading{flex-direction:column;align-items:stretch}.public-rank-shell{padding:1rem}}.tab-list{border-bottom:1px solid var(--line);gap:.5rem;margin:0 0 1rem;display:flex}.tab-list button{background:0 0;border:0;border-bottom:3px solid #0000;border-radius:0}.tab-list button.active{border-color:var(--brand);color:var(--brand)}.stack-list,.draft-list{gap:.75rem;display:grid}.draft-list{margin-top:1.25rem}.draft-list a{display:block}.comment-card{border-bottom:1px solid var(--line);padding:1rem 0}.community-page textarea,.content-detail textarea{width:100%}.rating-card{margin-top:1.25rem}.rating-card .status-pill{align-self:flex-start}.rating-up{color:var(--success,#137333);font-weight:700}.rating-trend{margin:1rem 0}.rating-trend svg{background:color-mix(in srgb, var(--surface) 88%, var(--primary));border-radius:.75rem;width:100%;max-height:12rem;display:block}.rating-trend polyline{stroke:var(--primary);stroke-width:3px}.rating-trend circle{fill:var(--surface);stroke:var(--primary);stroke-width:3px}.rating-trend figcaption{color:var(--muted);margin-top:.4rem;font-size:.85rem}.rating-down{color:var(--danger,#b3261e);font-weight:700}.auth-layout{background:var(--bg)}.auth-card,.content-card,.table-card,.filter-panel,.home-panel,.profile-metric,.difficulty-bars,.admin-section,.contest-card,.rbac-columns>div{background:var(--surface);border-color:var(--line);border-radius:var(--radius-md);box-shadow:none}.checkin-panel,.profile-hero{background:var(--surface);border-radius:var(--radius-md)}.profile-initial{border-radius:var(--radius-md);box-shadow:none;background:var(--brand)}.eyebrow{color:var(--brand);letter-spacing:.07em;text-transform:none}.page-heading h1,.problem-header h1,.profile-hero h1,.auth-brand h1{font-family:var(--font-ui)}.topbar{background:var(--surface);-webkit-backdrop-filter:none;backdrop-filter:none;border-color:var(--line)}.topbar nav a{color:var(--muted);border-radius:var(--radius-sm)}.topbar nav a.active{background:var(--brand-pale);color:var(--brand-dark)}.management-shortcut{background:var(--surface-soft)}.page-shell{width:min(var(--content-width), calc(100% - 2rem))}input,select,textarea{border-color:var(--line-strong);border-radius:var(--radius-sm);background:var(--surface);color:var(--ink)}input:focus,select:focus,textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--focus)}.button,button.danger,.button.danger{border-radius:var(--radius-sm)}.button.primary{background:var(--brand);box-shadow:none}.button.primary:hover{background:var(--brand-dark)}.button.secondary{border-color:var(--brand);background:var(--surface);color:var(--brand)}.button.quiet{color:var(--ink);border-color:var(--line-strong);background:0 0}button.danger,.button.danger{border-color:color-mix(in srgb, var(--red) 42%, var(--line));color:var(--red);background:var(--red-pale)}.tag,.status-badge,.status-chip,.phase-pill{border-radius:var(--radius-sm)}th{background:var(--surface-soft);color:var(--muted);text-transform:none;letter-spacing:.01em}td{border-color:var(--line)}tbody tr:hover{background:color-mix(in srgb, var(--brand-pale) 45%, var(--surface))}.problem-meta span,.metric-grid>div,.request-row,.point-grid article,.sample,.filter-bar,.preview-card,.point-card,.permission-grid label,.contest-problems a,.rolling-control,.rolling-spectator,.credential-once{border-radius:var(--radius-sm);border-color:var(--line)}.metric-grid>div,.filter-bar,.preview-card{background:var(--surface)}.markdown-body pre,.sample pre,.diagnostic{border-radius:var(--radius-sm)}.public-rank-shell{background:var(--bg);color:var(--ink)}.public-rank-shell .responsive-table,.public-rank-shell .empty-state{background:var(--surface);border-color:var(--line);border-radius:var(--radius-md);box-shadow:none}.rating-trend svg{border-radius:var(--radius-sm);background:var(--surface-soft)}.business-surface{min-height:calc(100vh - 4.5rem)}.editor-loading{color:#dce6f6;background:#111827;place-items:center;min-height:18rem;display:grid}.toast-viewport{z-index:1000;pointer-events:none;gap:.6rem;width:min(380px,100vw - 2rem);display:grid;position:fixed;top:1rem;right:1rem}.toast{border:1px solid var(--line-strong);border-left:4px solid var(--info);border-radius:var(--radius-md);background:var(--surface-raised);color:var(--ink);box-shadow:var(--shadow);pointer-events:auto;grid-template-columns:1fr auto;align-items:start;gap:.8rem;padding:.85rem 1rem;display:grid}.toast-success{border-left-color:var(--green)}.toast-warning{border-left-color:var(--amber)}.toast-error{border-left-color:var(--red)}.toast p{color:var(--muted);margin:.25rem 0 0;font-size:.9rem}.toast button{width:2rem;height:2rem;color:var(--muted);cursor:pointer;background:0 0;border:0;font-size:1.25rem}.action-dialog{border:1px solid var(--line-strong);border-radius:var(--radius-lg);background:var(--surface);width:min(520px,100vw - 2rem);color:var(--ink);padding:0;box-shadow:0 24px 72px #0f203742}.action-dialog::backdrop{background:#0f18287a}.action-dialog form{padding:1.25rem}.action-dialog header,.action-dialog footer{justify-content:space-between;align-items:center;gap:1rem;display:flex}.action-dialog header{border-bottom:1px solid var(--line);padding-bottom:.8rem}.action-dialog header h2{margin:0;font-size:1.2rem}.action-dialog header button{color:var(--muted);background:0 0;border:0;font-size:1.4rem}.action-dialog form>p{color:var(--muted);margin:1rem 0}.action-dialog footer{justify-content:flex-end;padding-top:1rem}.appearance-settings{margin-top:1rem}.theme-picker{border:0;grid-template-columns:repeat(3,minmax(0,1fr));gap:.75rem;margin:1rem 0;padding:0;display:grid}.theme-picker legend{margin-bottom:.7rem;font-weight:700}.theme-option{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-soft);cursor:pointer;grid-template-columns:auto 1fr;gap:.35rem .7rem;padding:.85rem;display:grid;position:relative}.theme-option.selected{border-color:var(--brand);box-shadow:0 0 0 2px var(--focus)}.theme-option input{grid-row:1/3;align-self:center;width:auto}.theme-option small{color:var(--muted)}.theme-swatches{grid-column:2;gap:.25rem;display:flex}.theme-swatches i{border-radius:2px;width:1.25rem;height:.45rem}.inline-check{align-items:center;gap:.55rem;display:flex}.inline-check input{width:auto}.local-css-panel{border-top:1px solid var(--line);margin-top:1.25rem;padding-top:1.25rem}.file-button{position:relative;overflow:hidden}.file-button input{opacity:0;width:1px;height:1px;position:absolute}.local-css-preview{border:1px dashed var(--line-strong);background:var(--surface-soft);margin-top:1rem;padding:.8rem}.local-css-preview>.content-card{margin:0}.preview-actions{border:1px solid var(--brand);background:var(--brand-pale);justify-content:space-between;align-items:center;gap:1rem;margin-top:1rem;padding:.8rem;display:flex}.form-success{border-left:3px solid var(--green);background:var(--green-pale);color:var(--green);margin-top:1rem;padding:.75rem}.recovery-page{color:#172033;background:#f4f7fb;place-items:center;min-height:100vh;padding:1rem;display:grid}.recovery-panel{background:#fff;border:1px solid #d7deea;border-radius:8px;width:min(560px,100%);padding:2rem;box-shadow:0 18px 48px #1d31521f}.recovery-panel h1{margin:1rem 0 .5rem}.recovery-panel small{color:#60708a;margin-top:1.25rem;display:block}.ac-celebration{z-index:900;border:1px solid color-mix(in srgb,var(--brand) 38%,var(--line));border-radius:var(--radius-lg);background:var(--surface-raised);min-width:250px;color:var(--ink);box-shadow:var(--shadow);pointer-events:none;align-items:center;gap:.9rem;padding:.8rem 1rem .8rem .75rem;animation:1.9s both ac-arrive;display:flex;position:fixed;top:5.5rem;left:50%;transform:translate(-50%)}.ac-celebration strong,.ac-celebration span{display:block}.ac-celebration strong{color:var(--green);font-size:1.25rem}.ac-celebration span{color:var(--muted);font-size:.85rem}.ac-celebration-mark{width:3.2rem;height:3.2rem;position:relative}.ac-celebration-mark svg{width:100%;height:100%;fill:var(--green-pale);stroke:var(--green);stroke-width:4px;stroke-linecap:round;stroke-linejoin:round}.ac-celebration-mark svg circle{stroke-dasharray:190;animation:.55s ease-out both ac-ring}.ac-celebration-mark svg path{fill:none;stroke-dasharray:48;animation:.42s ease-out .28s both ac-check}.ac-celebration-mark i{background:var(--brand);border-radius:1px;width:5px;height:5px;animation:.65s ease-out .2s both ac-particle;position:absolute;top:50%;left:50%}.ac-celebration-mark i:first-of-type{--x:34px;--y:0}.ac-celebration-mark i:nth-of-type(2){--x:24px;--y:24px}.ac-celebration-mark i:nth-of-type(3){--x:0;--y:34px}.ac-celebration-mark i:nth-of-type(4){--x:-24px;--y:24px}.ac-celebration-mark i:nth-of-type(5){--x:-34px;--y:0}.ac-celebration-mark i:nth-of-type(6){--x:-24px;--y:-24px}.ac-celebration-mark i:nth-of-type(7){--x:0;--y:-34px}.ac-celebration-mark i:nth-of-type(8){--x:24px;--y:-24px}@keyframes ac-arrive{0%{opacity:0;transform:translate(-50%,-12px)scale(.96)}18%,78%{opacity:1;transform:translate(-50%)scale(1)}to{opacity:0;transform:translate(-50%,-5px)scale(.98)}}@keyframes ac-ring{0%{stroke-dashoffset:190px}to{stroke-dashoffset:0}}@keyframes ac-check{0%{stroke-dashoffset:48px}to{stroke-dashoffset:0}}@keyframes ac-particle{0%{opacity:1;transform:translate(-50%,-50%)scale(1)}to{opacity:0;transform:translate(calc(-50% + var(--x)),calc(-50% + var(--y))) rotate(80deg) scale(.5)}}@media (width<=900px){.theme-picker{grid-template-columns:1fr}.topbar nav{justify-content:flex-start}}@media (width<=560px){.toast-viewport{width:calc(100vw - 1rem);top:.5rem;right:.5rem}.preview-actions{flex-direction:column;align-items:stretch}.ac-celebration{width:min(320px,100vw - 1rem);top:.75rem}}@media (prefers-reduced-motion:reduce){.ac-celebration{animation:1.6s both ac-static}.ac-celebration-mark svg circle,.ac-celebration-mark svg path,.ac-celebration-mark i{animation:none}.ac-celebration-mark i{display:none}}@keyframes ac-static{0%,to{opacity:0}10%,85%{opacity:1}}