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.22s ease,opacity .22s ease;display:flex;flex-direction:column;position:relative;overflow:hidden}.challenge-card:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background-color:var(--color-neon);transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.16,1,.3,1)}.challenge-card:hover{border-color:var(--color-border-bright);transform:translateY(-4px);box-shadow:0 10px 24px -4px #00000080}.challenge-card:hover:after{transform:scaleX(1)}.challenge-card--solved{background-color:var(--color-bg-card)!important;border:1px solid var(--color-border)!important;opacity:.68}.challenge-card--solved .challenge-card__points,.challenge-card--solved .challenge-card__title{color:var(--color-text-secondary)}.challenge-card--solved:after{background-color:var(--color-border-bright)}.challenge-card--solved:hover{opacity:1;border-color:var(--color-border-bright)!important;transform:translateY(-4px);box-shadow:0 10px 24px -4px #00000080}.challenge-card--solved:hover .challenge-card__points{color:var(--color-text-primary)}.challenge-card--solved:hover .challenge-card__title{color:#fff}.solved-pill{display:inline-flex;align-items:center;gap:5px;background-color:#00ff661a;color:var(--color-neon);border:1px solid var(--color-neon);padding:3px 9px;border-radius:var(--radius-sm);font-size:.72rem;font-family:var(--font-mono);font-weight:700;text-transform:uppercase;letter-spacing:.05em;box-shadow:0 0 10px #0f63;transition:box-shadow .2s ease,border-color .2s ease}.solved-pill svg{color:var(--color-neon)!important;stroke:var(--color-neon)!important;filter:drop-shadow(0 0 4px rgba(0,255,102,.6))}.challenge-card--solved:hover .solved-pill{box-shadow:0 0 16px #00ff6659;border-color:var(--color-neon)}.challenge-card__points{font-family:var(--font-heading);font-size:1.55rem;font-weight:700;color:#fff;margin-bottom:2px}.challenge-card__title{font-family:var(--font-heading);font-size:1.05rem;font-weight:600;margin:var(--space-2) 0;color:var(--color-text-primary);line-height:1.35}.challenge-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:var(--space-4)}.category-section{margin-bottom:var(--space-8)}.category-section__title{font-family:var(--font-heading);font-size:.82rem;text-transform:uppercase;letter-spacing:.08em;color:var(--color-text-secondary);margin-bottom:var(--space-4);display:flex;align-items:center;gap:var(--space-3);font-weight:700}.category-section__title:after{content:"";flex:1;height:1px;background-color:var(--color-border)}.solved-badge{display:inline-flex;align-items:center;gap:5px;color:var(--color-easy);font-size:.75rem;font-family:var(--font-mono);font-weight:600}.empty-state{text-align:center;padding:var(--space-12) var(--space-8);color:var(--color-text-muted);font-family:var(--font-mono);font-size:.9rem}.empty-state svg{margin-bottom:var(--space-4);opacity:.35}.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block}.status-dot--open{background-color:var(--color-neon)}.status-dot--in_progress{background-color:var(--color-amber)}.status-dot--closed{background-color:var(--color-text-muted)}.podium-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--space-5);align-items:flex-end;max-width:980px;margin:var(--space-10) auto var(--space-12)}.podium-card{background-color:var(--color-bg-card);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:24px 18px 22px;text-align:center;transition:transform var(--transition-fast),border-color var(--transition-fast),box-shadow var(--transition-fast);position:relative;display:flex;flex-direction:column;align-items:center}.podium-card--rank-1{order:2;transform:translateY(-26px);border:1px solid rgba(255,215,0,.45);box-shadow:0 16px 36px -10px #ffd70026;padding:32px 22px 28px;z-index:2}.podium-card--rank-1:hover{transform:translateY(-30px);border-color:#ffd700b3}.podium-card--rank-2{order:1;border:1px solid rgba(226,232,240,.3);box-shadow:0 10px 24px -8px #0006;z-index:1}.podium-card--rank-2:hover{transform:translateY(-4px);border-color:#e2e8f08c}.podium-card--rank-3{order:3;border:1px solid rgba(249,115,22,.3);box-shadow:0 10px 24px -8px #0006;z-index:1}.podium-card--rank-3:hover{transform:translateY(-4px);border-color:#f973168c}.scoreboard-row{display:grid;grid-template-columns:80px 1fr 140px 160px;align-items:center;gap:var(--space-4);padding:14px 24px;border-bottom:1px solid rgba(255,255,255,.04);transition:background-color var(--transition-fast)}.scoreboard-row:hover{background-color:#ffffff08}.scoreboard-row--top{background-color:#ffffff04}.scoreboard__points{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:#fff}@media(max-width:768px){.admin-layout{flex-direction:column}.sidebar{width:100%;min-height:auto;position:relative}.admin-content{max-width:100vw;padding:var(--space-4)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.container{padding:0 var(--space-4)}.scoreboard-row{grid-template-columns:50px 1fr 80px 90px;padding:12px 14px}.podium-grid{grid-template-columns:1fr;margin-top:0}.podium-card--rank-1{order:1;transform:none;padding:24px 18px}.podium-card--rank-1:hover{transform:translateY(-2px)}.podium-card--rank-2{order:2}.podium-card--rank-3{order:3}}