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var(--ease-out)}.pick-card:hover:before{opacity:1}.pick-num{position:absolute;top:1.5rem;right:2rem;font-family:var(--font-display);font-size:3rem;font-weight:800;color:var(--bg-card);line-height:1;-webkit-user-select:none;user-select:none;letter-spacing:-.05em;transition:color var(--t-base) var(--ease-out)}.pick-card:hover .pick-num{color:var(--bg-card2)}.pick-card-top{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.pick-card-title{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--text-primary);letter-spacing:-.01em;line-height:1.35;padding-right:4rem}.pick-card-meta{display:flex;align-items:flex-start;justify-content:space-between;gap:1.5rem}.pick-card-left{flex:1;display:flex;flex-direction:column;gap:.75rem;min-width:0}.score-display{display:flex;flex-direction:column;align-items:center;justify-content:center;width:58px;height:58px;background:var(--bg-card);border:1px solid var(--border-mid);border-radius:var(--r-sm);flex-shrink:0;transition:border-color var(--t-base) var(--ease-out)}.pick-card:hover .score-display{border-color:var(--coral-border)}.score-value{font-family:var(--font-display);font-size:1.1rem;font-weight:800;color:var(--text-primary);line-height:1}.score-label{font-family:var(--font-mono);font-size:.5rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--text-ghost);margin-top:3px}.score-display.has-score .score-value{color:var(--coral)}.pick-card-right{flex-shrink:0;display:flex;align-items:center}.pick-card-explanation{display:flex;align-items:center;gap:.5rem;font-family:var(--font-mono);font-size:.75rem;color:var(--text-muted);font-style:normal}.tags-row{display:flex;flex-wrap:wrap;gap:.35rem}.tag-pill{background:var(--bg-card);border:1px solid var(--border);color:var(--text-muted);font-family:var(--font-mono);font-size:.68rem;padding:.15rem .5rem;border-radius:var(--r-xs);transition:all var(--t-fast) var(--ease-out)}.tag-pill:hover{border-color:var(--coral-border);color:var(--coral)}.difficulty-badge{display:inline-flex;align-items:center;font-family:var(--font-mono);font-size:.65rem;font-weight:500;text-transform:uppercase;letter-spacing:.06em;padding:.18rem .55rem;border-radius:var(--r-xs)}.difficulty-badge.easy{color:var(--easy);background:var(--easy-bg)}.difficulty-badge.medium{color:var(--medium);background:var(--medium-bg)}.difficulty-badge.hard{color:var(--hard);background:var(--hard-bg)}.difficulty-badge.unknown{color:var(--text-muted);background:var(--bg-card)}.btn-solve{display:flex;align-items:center;justify-content:center;gap:.5rem;width:100%;padding:.75rem 1.25rem;font-family:var(--font-display);font-size:.85rem;font-weight:700;color:var(--coral);background:var(--coral-subtle);border:1px solid var(--coral-border);border-radius:var(--r-sm);cursor:pointer;text-decoration:none;transition:all var(--t-base) var(--ease-spring);letter-spacing:.01em}.btn-solve:hover{background:var(--coral);color:#0d0b09;border-color:transparent;box-shadow:0 4px 20px var(--coral-glow);transform:translateY(-1px)}.status-container{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:4rem 2rem;gap:1rem;border:1px dashed var(--border);border-radius:var(--r-lg);animation:fadeIn .4s var(--ease-out)}.status-icon{color:var(--text-ghost)}.status-title{font-family:var(--font-display);font-size:1.1rem;font-weight:600;color:var(--text-primary)}.status-desc{font-size:.875rem;color:var(--text-muted);max-width:380px;line-height:1.5}.status-error{border-color:#f8717133}.status-error-icon{color:var(--hard)}.skeleton-shimmer{background:linear-gradient(90deg,#ffebc805 25%,#ffebc80d,#ffebc805 75%);background-size:200% 100%;animation:shimmer 1.8s infinite ease-in-out;border-radius:var(--r-xs)}.skeleton-card{background:var(--bg-elevated);padding:1.75rem 2rem;display:flex;flex-direction:column;gap:1.25rem}.sk-title{height:20px;width:70%}.sk-sm{height:12px;width:35%}.sk-full{height:12px;width:100%}.sk-tags{height:20px;width:55%}.sk-btn{height:38px;width:100%;border-radius:var(--r-sm)}.app-main{display:flex;flex-direction:column;gap:1.5rem}.hiw-page{display:flex;flex-direction:column;gap:2rem;animation:slideUp .5s var(--ease-spring) forwards;max-width:860px}.hiw-hero{display:flex;flex-direction:column;gap:.5rem;padding-bottom:1.75rem;border-bottom:1px solid var(--border)}.hiw-hero h1{font-family:var(--font-display);font-size:1.75rem;font-weight:700;color:var(--text-primary);letter-spacing:-.02em;display:flex;align-items:center;gap:.625rem}.hiw-hero p{font-size:.9rem;color:var(--text-muted);line-height:1.7;max-width:640px}.hiw-card{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--r-lg);padding:1.75rem;display:flex;flex-direction:column;gap:1rem}.hiw-card-header{display:flex;align-items:center;justify-content:space-between}.hiw-card-tag{display:inline-flex;align-items:center;gap:.35rem;background:var(--coral-subtle);border:1px solid var(--coral-border);color:var(--coral);font-family:var(--font-mono);font-size:.67rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;padding:.22rem .6rem;border-radius:var(--r-xs)}.hiw-card-tag.violet,.hiw-card-tag.amber{background:var(--amber-subtle);border-color:var(--amber-border);color:var(--amber)}.hiw-card h3{font-family:var(--font-display);font-size:1.1rem;font-weight:700;color:var(--text-primary);display:flex;align-items:center;gap:.5rem;letter-spacing:-.01em}.hiw-card p{font-size:.85rem;color:var(--text-muted);line-height:1.75}.hiw-grid-2{display:grid;grid-template-columns:1fr;gap:1rem}@media (min-width: 640px){.hiw-grid-2{grid-template-columns:repeat(2,1fr)}}.hiw-stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--border);border-radius:var(--r-md);overflow:hidden;border:1px solid var(--border)}.hiw-stat-box{background:var(--bg-elevated);padding:1.25rem;display:flex;flex-direction:column;gap:.4rem}.hiw-stat-label{font-family:var(--font-mono);font-size:.62rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--text-ghost)}.hiw-stat-body{font-size:.82rem;color:var(--text-muted);line-height:1.65}.btn-back{display:inline-flex;align-items:center;gap:.4rem;background:transparent;border:1px solid var(--border);color:var(--text-muted);font-size:.78rem;font-weight:500;padding:.4rem .875rem;border-radius:var(--r-full);cursor:pointer;transition:all var(--t-base) var(--ease-out);font-family:var(--font-body);text-decoration:none}.btn-back:hover{border-color:var(--border-mid);color:var(--text-primary);background:var(--bg-elevated)}@media (max-width: 640px){.app-container{padding:1rem 1.25rem;gap:1.75rem}.pick-card{padding:1.25rem}.pick-num{font-size:2rem}.nav-links{display:none}.action-card{padding:1.5rem}}.font-mono{font-family:var(--font-mono)}.welcome-section{display:flex;flex-direction:column;gap:1.5rem}.welcome-title-group h1{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--text-primary);letter-spacing:-.03em}.welcome-title-group p{font-size:1rem;color:var(--text-secondary);margin-top:.25rem}