:root{--bg-page: #ffffff;--bg-card: #ffffff;--bg-subtle: #f8fafc;--bg-muted: #f1f5f9;--bg-input: #ffffff;--border-color: #e2e8f0;--border-subtle: #f1f5f9;--border-focus: #2563eb;--text-primary: #0f172a;--text-secondary: #475569;--text-muted: #64748b;--text-inverse: #ffffff;--accent-primary: #2563eb;--accent-primary-hover: #1d4ed8;--accent-light: #eff6ff;--success-color: #10b981;--success-bg: #ecfdf5;--success-border: #a7f3d0;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .04);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .06), 0 2px 4px -2px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .06), 0 4px 6px -4px rgba(0, 0, 0, .03);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", Menlo, Monaco, Consolas, monospace;--radius-sm: 6px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-full: 9999px}[data-theme=dark]{--bg-page: #0b0f17;--bg-card: #131b2e;--bg-subtle: #182238;--bg-muted: #1e293b;--bg-input: #0f172a;--border-color: #27354f;--border-subtle: #1e293b;--border-focus: #3b82f6;--text-primary: #f8fafc;--text-secondary: #cbd5e1;--text-muted: #94a3b8;--text-inverse: #ffffff;--accent-primary: #3b82f6;--accent-primary-hover: #2563eb;--accent-light: #1e293b;--success-color: #34d399;--success-bg: #064e3b;--success-border: #047857;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--bg-page);color:var(--text-primary);min-height:100vh;line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;transition:background-color .2s ease,color .2s ease}a{color:inherit;text-decoration:none}button,input,select,textarea{font-family:inherit}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;max-width:900px;width:100%;margin:0 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