:root{--sp-xs: 4px;--sp-sm: 8px;--sp-md: 16px;--sp-lg: 24px;--sp-xl: 32px;--sp-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-pill: 50px;--transition: .2s ease;--header-h: 60px}:root,:root[data-theme=dark]{--color-bg: #0d1117;--color-surface: rgba(20, 38, 68, .85);--color-card: rgba(30, 55, 105, .65);--color-card-hover: rgba(40, 70, 130, .75);--color-border: rgba(130, 210, 255, .15);--color-border-focus: rgba(130, 210, 255, .45);--color-accent: #0a96fa;--color-accent-2: #00d4ff;--color-glow: rgba(10, 150, 250, .25);--color-text: #e8f4ff;--color-text-muted: #7aadcc;--color-text-dim: rgba(232, 244, 255, .4);--color-success: #4caf50;--color-reward: #eaab00;--color-danger: #f44336;--color-header-bg: rgba(8, 18, 32, .97);--color-header-text: #e8f4ff;--color-header-tab: rgba(255, 255, 255, .06);--color-header-active:rgba(10, 150, 250, .25);--shadow-card: 0 4px 24px rgba(0, 0, 0, .45);--shadow-glow: 0 0 20px var(--color-glow);--gradient-progress: linear-gradient(90deg, #00ffe7, var(--color-accent));--gradient-accent: linear-gradient(135deg, var(--color-accent), var(--color-accent-2))}:root[data-theme=light]{--color-bg: #f0f4f8;--color-surface: rgba(255, 255, 255, .95);--color-card: rgba(255, 255, 255, .9);--color-card-hover: rgba(240, 248, 255, 1);--color-border: rgba(0, 0, 0, .08);--color-border-focus: rgba(10, 150, 250, .4);--color-accent: #0a78e0;--color-accent-2: #0099cc;--color-glow: rgba(10, 120, 224, .15);--color-text: #1a2332;--color-text-muted: #5a7090;--color-text-dim: rgba(26, 35, 50, .4);--color-success: #2e7d32;--color-reward: #b8860b;--color-danger: #c62828;--color-header-bg: rgba(255, 255, 255, .97);--color-header-text: #1a2332;--color-header-tab: rgba(0, 0, 0, .04);--color-header-active:rgba(10, 120, 224, .12);--shadow-card: 0 4px 24px rgba(0, 0, 0, .08);--shadow-glow: 0 0 15px var(--color-glow);--gradient-progress: linear-gradient(90deg, var(--color-accent-2), var(--color-accent));--gradient-accent: 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.modal-icon{filter:drop-shadow(0 0 12px rgba(10,150,250,.5))}.modal-card--library-skill .modal-icon{filter:drop-shadow(0 0 10px rgba(0,212,255,.5))}.app-toast{padding:10px 20px;border-radius:var(--radius-md);background:var(--color-surface, rgba(20,38,68,.95));border:1px solid var(--color-border);color:var(--color-text);font-size:14px;font-weight:600;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:var(--shadow-card);white-space:nowrap;pointer-events:none;opacity:0;transform:translateY(20px);transition:opacity .25s ease,transform .25s ease}.app-toast--show{opacity:1;transform:translateY(0)}.app-toast--success{border-color:var(--color-success, #4caf50)}.app-toast--error{border-color:var(--color-danger, #f44336);color:var(--color-danger, #f44336)}.app-toast--info{border-color:var(--color-accent, #0a96fa)}.search-wrap{position:sticky;top:0;z-index:10;width:100%;padding:10px 0 12px;background:transparent;margin-bottom:8px}.search-input{width:100%;padding:10px 16px 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