:root{--bg-color: #0d1117;--panel-bg: rgba(22, 27, 34, .7);--accent-color: #58a6ff;--text-primary: #c9d1d9;--text-secondary: #8b949e;--border-color: rgba(240, 246, 252, .1);--font-main: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;--glass-bg: rgba(255, 255, 255, .05);--glass-border: rgba(255, 255, 255, .1)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:var(--font-main);overflow-x:hidden}#root{display:flex;flex-direction:column;min-height:100vh}.app-container{display:flex;flex:1;padding:16px;gap:20px}.sidebar{width:300px;background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;padding:24px;display:flex;flex-direction:column;gap:24px}.main-content{flex:1;background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:16px;padding:20px;position:relative}h1{font-size:1.5rem;margin-bottom:8px;background:linear-gradient(90deg,#58a6ff,#bc8cff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}h2{font-size:1.1rem;color:var(--text-secondary);margin-bottom:16px}.sidebar-header{display:block}.control-group{display:flex;flex-direction:column;gap:8px}label{font-size:.9rem;color:var(--text-secondary)}input[type=range]{width:100%;accent-color:var(--accent-color)}input[type=text]{width:100%;background:#0003;border:1px solid var(--border-color);border-radius:8px;padding:10px;color:var(--text-primary);outline:none}input[type=text]:focus{border-color:var(--accent-color)}.category-select option{background-color:#161b22;color:#c9d1d9}.footer-attribution{position:absolute;bottom:24px;right:24px;font-size:.8rem;color:var(--text-secondary);display:flex;gap:12px;align-items:center}.attribution-link{color:var(--text-secondary);text-decoration:none;background:#ffffff0d;padding:4px 8px;border-radius:6px;transition:all .2s ease;border:1px solid transparent;display:flex;align-items:center;gap:4px}.attribution-link span{color:var(--text-primary);font-weight:500}.attribution-link:hover{background:#58a6ff1a;border-color:#58a6ff4d;color:var(--accent-color);transform:translateY(-1px)}.chart-container{width:100%;height:calc(100vh - 120px)}.glass{background:var(--glass-bg);border:1px solid var(--glass-border);box-shadow:0 4px 30px #0000001a;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px)}@media(max-width:1024px){.sidebar{width:260px}}@media(max-width:768px){.app-container{flex-direction:column;padding:12px;gap:16px}.sidebar{width:100%;padding:20px;gap:20px;order:2}.main-content{padding:16px;order:1;min-height:500px}.chart-container{height:450px}h1{font-size:1.25rem}h2{font-size:1rem;margin-bottom:12px}.sidebar-header{display:none}.footer-attribution{position:static;margin-top:24px;padding-top:16px;border-top:1px solid var(--border-color);justify-content:center;flex-wrap:wrap;right:auto;bottom:auto}}@media(max-width:480px){.app-container{padding:8px}.main-content,.sidebar{border-radius:12px;padding:12px}.chart-container{height:350px}.control-group label{font-size:.8rem}.attribution-link{font-size:.75rem}}.about-section{padding:24px;background:var(--panel-bg);border:1px solid var(--glass-border);border-radius:12px;color:var(--text-secondary);font-size:.9rem;line-height:1.7;max-width:600px;max-height:80vh;overflow-y:auto;position:relative}.about-section h2{color:var(--text-primary);font-size:1.2rem;margin-bottom:16px}.about-section h3{color:var(--text-primary);font-size:1rem;margin:20px 0 12px}.about-section p{margin-bottom:12px}.about-section ul{margin:12px 0;padding-left:20px}.about-section li{margin-bottom:8px}.about-section a{color:var(--accent-color);text-decoration:none}.about-section a:hover{text-decoration:underline}.about-section strong{color:var(--text-primary)}.about-section em{color:var(--accent-color);font-style:normal}.about-button{color:var(--text-secondary);text-decoration:none;background:#ffffff0d;padding:4px 8px;border-radius:6px;transition:all .2s ease;border:1px solid transparent;cursor:pointer;font-size:.8rem;font-family:inherit}.about-button:hover{background:#ffffff1a;border-color:var(--accent-color);color:var(--accent-color)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-close{position:absolute;top:12px;right:12px;background:transparent;border:none;color:var(--text-secondary);font-size:1.5rem;cursor:pointer;line-height:1;padding:4px 8px;border-radius:4px;transition:all .2s ease}.modal-close:hover{color:var(--text-primary);background:var(--glass-bg)}