:root{color-scheme:dark;--ph-black: #0a0a0a;--ph-bg: #0f0f0f;--ph-surface: #1b1b1b;--ph-surface-2: #242424;--ph-border: #303030;--ph-orange: #ff9900;--ph-orange-hover: #ffb347;--ph-orange-dark: #cc7a00;--ph-text: #ffffff;--ph-text-muted: #969696;--ph-text-dim: #707070;--ph-header-h: 56px;--ph-catbar-h: 44px;--ph-sidebar-w: 200px;font-family:Arial,Helvetica,sans-serif;background:var(--ph-black);color:var(--ph-text)}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--ph-black)}button,input,select,textarea{font:inherit}button{cursor:pointer}a{color:var(--ph-orange);text-decoration:none}a:hover{color:var(--ph-orange-hover)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--ph-black)}::-webkit-scrollbar-thumb{background:var(--ph-surface-2);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--ph-orange-dark)}@keyframes pulse-live{0%,to{opacity:1}50%{opacity:.55}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes typing-dot{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}