:root{--bg-primary: #030303;--text-primary: #ffffff;--text-secondary: #9ca3af;--accent-primary: #3b82f6;--accent-secondary: #a855f7;--glass-bg: rgba(255, 255, 255, .03);--glass-border: rgba(255, 255, 255, .05);--glass-blur: 10px;font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;color-scheme:dark}body{margin:0;padding:0;background-color:var(--bg-primary);color:var(--text-primary);min-height:100vh;-webkit-font-smoothing:antialiased;background-image:radial-gradient(circle at 10% 10%,rgba(88,28,135,.15) 0%,transparent 40%),radial-gradient(circle at 90% 90%,rgba(30,58,138,.15) 0%,transparent 40%);background-attachment:fixed}*{box-sizing:border-box}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:#334155;border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#475569}.app-container{display:flex;flex-direction:column;height:100vh;overflow:hidden;max-width:1600px;margin:0 auto}.header{height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;z-index:10}.logo{font-size:1.25rem;font-weight:700;background:linear-gradient(to right,#fff,#9ca3af);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;display:flex;align-items:center;gap:.5rem}.main-content{flex:1;display:flex;overflow:hidden;padding:1rem;gap:1rem}.glass-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);transition:all .4s cubic-bezier(.175,.885,.32,1.275);border-radius:16px}.editor-pane,.preview-pane{flex:1;display:flex;flex-direction:column;overflow:hidden;position:relative;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:16px;box-shadow:0 8px 32px #0000004d}.pane-header{height:48px;display:flex;align-items:center;padding:0 1.5rem;font-size:.875rem;font-weight:600;letter-spacing:.02em;color:var(--text-primary);border-bottom:1px solid var(--glass-border);background:#ffffff05}.code-editor{flex:1;width:100%;min-height:0;resize:none;background:transparent;border:none;color:#e2e8f0;font-family:Menlo,Monaco,Courier New,monospace;font-size:14px;line-height:1.6;padding:1.5rem;outline:none;overflow:auto}.preview-content-area{flex:1;display:flex;align-items:center;justify-content:center;width:100%;overflow:auto;padding:2rem;background-image:linear-gradient(45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(-45deg,rgba(255,255,255,.03) 25%,transparent 25%),linear-gradient(45deg,transparent 75%,rgba(255,255,255,.03) 75%),linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.03) 75%);background-size:20px 20px;background-position:0 0,0 10px,10px -10px,-10px 0px}.preview-container{background:#fff;box-shadow:0 20px 60px -12px #00000080;overflow:hidden;width:100%;height:100%;transition:all .3s ease;border-radius:8px}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.6rem 1.2rem;border-radius:9999px;font-weight:500;font-size:.9rem;transition:all .3s;cursor:pointer}.btn-primary{background:#ffffff1a;color:#fff;border:1px solid rgba(255,255,255,.1)}.btn-primary:hover{background:#fff3;border-color:#ffffff4d;transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-ghost{background:transparent;color:var(--text-secondary);border:1px solid transparent}.btn-ghost:hover{color:#fff;background:#ffffff0d}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.spin{animation:spin 1s linear infinite}