:root{--primary-color:#6366f1;--primary-hover:#4f46e5;--primary-light:#818cf8;--secondary-color:#8b5cf6;--accent-color:#ec4899;--success-color:#10b981;--warning-color:#f59e0b;--danger-color:#ef4444;--info-color:#06b6d4;--background-color:#fff;--background-secondary:#f8fafc;--text-color:#1e293b;--text-secondary:#64748b;--text-muted:#94a3b8;--border-color:#e2e8f0;--border-hover:#cbd5e1;--gradient-primary:linear-gradient(135deg,#6366f1 0%,#8b5cf6 100%);--gradient-accent:linear-gradient(135deg,#ec4899 0%,#f59e0b 100%);--gradient-success:linear-gradient(135deg,#10b981 0%,#06b6d4 100%);--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;--shadow-lg:0 10px 15px -3px #0000001a,0 4px 6px -2px #0000000d;--shadow-xl:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;--shadow-glow:0 0 20px #6366f14d;--transition-fast:.15s cubic-bezier(.4,0,.2,1);--transition-base:.25s cubic-bezier(.4,0,.2,1);--transition-slow:.35s cubic-bezier(.4,0,.2,1);--transition-bounce:.5s cubic-bezier(.68,-.55,.265,1.55)}*{box-sizing:border-box;margin:0;padding:0}body{color:var(--text-color);background-color:var(--background-secondary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.6}a{color:var(--primary-color);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--primary-hover);text-decoration:none}.container{max-width:1200px;margin:0 auto;padding:0 1rem}@media (max-width:768px){.container{padding:0 .75rem}}.btn{cursor:pointer;transition:all var(--transition-base);white-space:nowrap;border:none;border-radius:.75rem;justify-content:center;align-items:center;gap:.5rem;padding:.625rem 1.25rem;font-size:.875rem;font-weight:600;display:inline-flex;position:relative;overflow:hidden}.btn:before{content:"";background:#fff3;border-radius:50%;width:0;height:0;transition:width .6s,height .6s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.btn:hover:before{width:300px;height:300px}.btn:active{transform:scale(.98)}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{box-shadow:var(--shadow-lg),var(--shadow-glow);transform:translateY(-2px)}.btn-secondary{color:var(--text-color);border:2px solid 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nav{justify-content:space-between;align-items:center;display:flex}header nav a{color:#fff;transition:all var(--transition-fast);border-radius:.5rem;margin:0 .5rem;padding:.5rem 1rem}header nav a:hover{background:#ffffff1a;transform:translateY(-1px)}.alert{border-left:4px solid;border-radius:.75rem;margin-bottom:1rem;padding:1rem;animation:.3s ease-out slideIn}@keyframes slideIn{0%{opacity:0;transform:translate(-10px)}to{opacity:1;transform:translate(0)}}.alert-error{border-color:var(--danger-color);color:#991b1b;background-color:#fef2f2}.alert-success{border-color:var(--success-color);color:#166534;background-color:#f0fdf4}.icon-button{border:2px solid var(--border-color);width:32px;height:32px;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-base);background:#fff;border-radius:8px;justify-content:center;align-items:center;display:flex;position:relative;overflow:hidden}.icon-button:after{content:"";background:var(--primary-color);opacity:.1;border-radius:50%;width:0;height:0;transition:width .4s,height .4s;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%)}.icon-button:hover:after{width:100%;height:100%}.icon-button:hover{border-color:var(--primary-color);color:var(--primary-color);box-shadow:var(--shadow-md);transform:scale(1.1)}.icon-button:active{transform:scale(.95)}.icon-button.active{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md);border-color:#0000}.icon-button.active:hover{box-shadow:var(--shadow-lg),var(--shadow-glow);transform:scale(1.05)}.icon-button:disabled{opacity:.5;cursor:not-allowed;transform:none!important}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}@keyframes bounce{0%,to{animation-timing-function:cubic-bezier(.8,0,1,1);transform:translateY(-25%)}50%{animation-timing-function:cubic-bezier(0,0,.2,1);transform:translateY(0)}}.bounce{animation:1s infinite bounce}@keyframes shake{0%,to{transform:translate(0)}10%,30%,50%,70%,90%{transform:translate(-4px)}20%,40%,60%,80%{transform:translate(4px)}}.shake{animation:.5s shake}.admin-nav-separator{display:block}@media (max-width:768px){.admin-nav-separator{display:none}.btn{padding:.5rem 1rem;font-size:.8125rem}header nav{flex-wrap:wrap}header nav a{margin:.25rem;padding:.375rem .75rem;font-size:.875rem}}html{scroll-behavior:smooth}:focus-visible{outline:2px solid var(--primary-color);outline-offset:2px;border-radius:4px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:1s linear infinite 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*{transition:all .2s}.btn{position:relative;overflow:hidden;transform:translateY(0)}.btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 12px #00000026}.btn:active:not(:disabled){transform:translateY(0)}.card{transition:transform .3s,box-shadow .3s}.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001f}.bookmark-item{border-left:3px solid #0000;transition:all .3s cubic-bezier(.4,0,.2,1)}.bookmark-item:hover{border-left-color:var(--primary-color);background:linear-gradient(90deg,rgba(var(--primary-rgb),.03)0%,transparent 100%);transform:translate(4px)}a{text-decoration:none;position:relative}a:after{content:"";background-color:var(--primary-color);width:0;height:2px;transition:width .3s;position:absolute;bottom:-2px;left:0}a:hover:after{width:100%}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spinner{border-radius:50%;animation:1s linear infinite spin}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.5s fadeIn}@keyframes pulse{0%,to{opacity:1}50%{opacity:.7}}.pulse{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}@keyframes slideInRight{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.slide-in-right{animation:.3s slideInRight}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.bounce{animation:.6s bounce}.search-history-item:hover{background-color:#f8f9fa;transform:translate(4px)}.tag{transition:all .2s}.tag:hover{transform:scale(1.05);box-shadow:0 2px 8px #0000001a}.gradient-primary{background:linear-gradient(135deg,#667eea 0%,#764ba2 100%)}.gradient-success{background:linear-gradient(135deg,#56ab2f 0%,#a8e063 100%)}.gradient-info{background:linear-gradient(135deg,#209cff 0%,#68e0cf 100%)}.glass{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffff1a;border:1px solid #fff3}