.competition-page{max-width:1160px;margin:24px auto 48px;color:var(--text,#163746)}
.competition-tabs{display:flex;gap:24px;border-bottom:1px solid var(--border,#d6e5e9);margin-bottom:28px;overflow-x:auto}
.competition-tabs a{padding:12px 0;white-space:nowrap;font-weight:700;border-bottom:3px solid transparent}
.competition-tabs a[aria-current]{color:#087c64;border-color:#087c64}
.competition-heading{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:22px}
.competition-heading h1{font-size:32px;margin:6px 0 10px;line-height:1.2;letter-spacing:0}
.competition-heading p{margin:0;color:var(--muted,#536977)}
.competition-heading .button{display:inline-flex;align-items:center;gap:8px;flex-shrink:0}
.competition-filters{display:flex;gap:12px;align-items:end;margin-bottom:22px;flex-wrap:wrap}
.competition-filters label{display:grid;gap:5px;font-size:13px;min-width:160px}
.competition-filters select{min-height:44px;background:var(--surface,#fff);border:1px solid var(--border,#d6e5e9);border-radius:5px;padding:8px 12px;color:inherit}
.competition-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;margin:22px 0 28px;border-block:1px solid var(--border,#d6e5e9);padding:22px 0}
.competition-summary>div{padding:0 24px;border-right:1px solid var(--border,#d6e5e9)}
.competition-summary>div:first-child{padding-left:0}.competition-summary>div:last-child{border:0}
.competition-summary span{display:block;font-size:13px;color:var(--muted,#536977)}
.competition-summary strong{display:block;font-size:28px;margin-top:6px;overflow-wrap:anywhere}.competition-summary small{font-size:14px;font-weight:500}
.competition-section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:24px 0 18px}
.competition-section-head h2{font-size:22px;margin:0}.competition-section-head>span{font-size:13px;color:var(--muted,#536977)}
.competition-podium{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:24px}
.podium-entry{position:relative;border:1px solid var(--border,#d6e5e9);border-radius:7px;text-align:center;padding:24px 12px;background:var(--surface,#fff)}
.podium-entry:first-child{border-top:4px solid #d69a17;background:#fff8e2}.podium-entry:nth-child(2){border-top:4px solid #7194aa}.podium-entry:nth-child(3){border-top:4px solid #cd6686}
.podium-rank{position:absolute;left:12px;top:10px;font-size:13px;font-weight:800;color:#385267}
.student-avatar{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;flex:none;background:#e4f4ef;color:#076849;border:1px solid #add7c8;border-radius:50%;font-weight:800;overflow:hidden}
.podium-entry .student-avatar{width:54px;height:54px;font-size:19px}.podium-entry h3{font-size:16px;margin:12px 0 8px}.podium-entry>strong{font-size:24px}.podium-entry small{font-size:12px;font-weight:500}
.competition-table-scroll{overflow-x:auto}.competition-table{width:100%;border-collapse:collapse;font-size:14px;min-width:550px}
.competition-table th,.competition-table td{padding:14px 12px;border-bottom:1px solid var(--border,#d6e5e9);text-align:left}.competition-table th{color:#55727c;background:#eaf3f4;font-size:12px;text-transform:uppercase}.competition-table td:nth-child(2){min-width:170px}
.ranking-student{display:flex;gap:12px;align-items:center}.ranking-student .student-avatar{width:34px;height:34px;font-size:12px}
.competition-table .is-me td{background:#e6f6ee;color:#095d46}.competition-table .is-me td:first-child{border-left:3px solid #07926d}
.competition-empty{text-align:center;padding:40px 16px;border-block:1px solid var(--border,#d6e5e9)}.competition-empty img{object-fit:contain}.competition-empty h3{font-size:21px}
.competition-fair-play{font-size:12px;color:var(--muted,#536977);line-height:1.7;margin:20px 0}
.competition-notice{padding:14px;border-left:3px solid #d28d22;background:#fff8e4;color:#60490e}
.challenge-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:24px 0 36px}
.challenge-card{padding:22px;border:1px solid #c8dce3;border-radius:7px;background:var(--surface,#fff);border-top:4px solid #087c64;transition:border-color .18s,box-shadow .18s}
.challenge-card:hover{border-color:#2b8d7b;box-shadow:0 5px 16px #1637460c}.challenge-weekly{border-top-color:#266cbe}
.challenge-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;color:#55727c;font-size:12px}.challenge-card-top>span:first-child{display:flex;align-items:center;gap:7px}
.challenge-state{padding:3px 8px;border:1px solid #bcddcd;background:#eaf6ee;color:#126441;border-radius:4px;font-weight:700}
.challenge-card h2{font-size:24px;margin:18px 0 8px}.challenge-card>p{font-size:14px;color:var(--muted,#536977)}
.challenge-metadata{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;margin:20px 0}.challenge-metadata span{border-left:1px solid #c8dce3;padding-left:10px}
.challenge-card .challenge-deadline{font-size:12px}.challenge-card button,.challenge-card>.button{width:100%;text-align:center;min-height:44px;margin-top:10px}
.challenge-earned strong{font-size:22px;color:#087c64}
.competition-streak{padding:22px 0 30px;border-block:1px solid var(--border,#d6e5e9);scroll-margin-top:30px}
.streak-week{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:12px;margin:22px 0}
.streak-day{text-align:center;border:1px solid #cedfe4;border-radius:6px;padding:14px 4px;background:var(--surface,#fff)}.streak-day span,.streak-day small{display:block;font-size:12px;color:#58717d}.streak-day strong{display:block;font-size:24px;margin:7px 0}
.streak-day.is-today{outline:2px solid #2b70ba;outline-offset:2px}.streak-day.is-complete{background:#e6f6ed;border-color:#77b49b;color:#076646}
.competition-streak>p{color:var(--muted,#536977);font-size:13px}
.competition-history{margin-top:30px}.competition-history>div{display:flex;gap:16px;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid var(--border,#d6e5e9);font-size:14px}.competition-history small{display:block;color:var(--muted,#536977);font-size:12px;margin-top:4px}
.challenge-toolbar{position:sticky;top:8px;z-index:2;display:flex;align-items:center;gap:20px;background:var(--surface,#fff);border:1px solid #b6d2dc;padding:14px 18px;border-radius:6px;margin:20px 0}.challenge-toolbar small{display:block;color:var(--muted,#536977);font-size:12px}.challenge-toolbar>[role=timer]{margin-left:auto;min-width:70px;text-align:center;color:#176d93;font-variant-numeric:tabular-nums}.challenge-toolbar progress{width:110px;accent-color:#087c64}
.challenge-question{border:0;margin:26px 0;padding:0;min-width:0}.challenge-question legend{display:flex;gap:16px;font-size:21px;font-weight:700;line-height:1.6;width:100%;margin-bottom:20px;overflow-wrap:anywhere}.challenge-question legend>span:first-child{color:#087c64;font-size:14px;padding-top:8px}
.challenge-option{display:flex;align-items:center;gap:14px;padding:16px;margin:10px 0;background:var(--surface,#fff);border:1px solid #c7dce3;border-radius:6px;cursor:pointer;min-height:60px;overflow-wrap:anywhere}.challenge-option input{width:18px;height:18px;min-height:0;flex:none;accent-color:#087c64}.challenge-option strong{display:flex;align-items:center;justify-content:center;width:32px;height:32px;flex:none;background:#edf4f8;border-radius:4px}.challenge-option:has(input:checked){border:2px solid #0c8b68;padding:15px;background:#eaf8f1}.challenge-option:focus-within{outline:2px solid #2b70ba;outline-offset:2px}
.challenge-navigation{display:flex;justify-content:flex-end;gap:10px;flex-wrap:wrap;margin-top:26px}.challenge-result{padding:30px 0;border-bottom:1px solid var(--border,#d6e5e9)}.challenge-result h2{font-size:36px;margin:12px 0;color:#087c64}.challenge-review article{padding:20px 0;border-bottom:1px solid var(--border,#d6e5e9)}.challenge-review h3{font-size:18px}.challenge-review p{overflow-wrap:anywhere}
.competition-page [hidden]{display:none!important}
body[data-theme=dark] .competition-page{color:#e4f0f4}body[data-theme=dark] .podium-entry:first-child{background:#342e17}body[data-theme=dark] .competition-table .is-me td,body[data-theme=dark] .streak-day.is-complete,body[data-theme=dark] .challenge-option:has(input:checked){background:#18392e;color:#c5f4df}body[data-theme=dark] .competition-table th{background:#243d45;color:#c9e5ee}body[data-theme=dark] .challenge-state{background:#193e2e;color:#b9ebcd}body[data-theme=dark] .competition-notice{background:#3c331b;color:#f4e3b8}
@media(max-width:700px){.competition-heading{align-items:flex-start;flex-direction:column;gap:14px}.competition-heading h1{font-size:28px}.competition-summary>div{padding:0 12px}.competition-summary strong{font-size:23px}.challenge-grid{grid-template-columns:minmax(0,1fr)}.streak-week{gap:6px}.streak-day{padding:10px 2px}.streak-day strong{font-size:21px}.streak-day span,.streak-day small{font-size:10px}.competition-section-head{align-items:flex-start}.competition-section-head>span{max-width:110px;text-align:right}.competition-podium{gap:7px}.podium-entry{padding:28px 6px 16px}.podium-entry h3{font-size:13px}.podium-entry>strong{font-size:21px}.podium-entry small{display:block}.challenge-toolbar{gap:10px;padding:12px}.challenge-toolbar progress{width:60px}.challenge-question legend{font-size:18px}.competition-history>div{flex-wrap:wrap}.competition-tabs{gap:18px;font-size:14px}}
@media(prefers-reduced-motion:reduce){.challenge-card{transition:none}}
.challenge-invite{display:flex;align-items:center;gap:12px;font-size:13px}.challenge-invite button{display:inline-flex;gap:7px;align-items:center}