:root{--color-purple: #7c3aed;--color-purple-dark: #5b21b6;--color-purple-light: #a78bfa;--color-light-blue: #38bdf8;--color-light-blue-dark: #0284c7;--color-light-blue-light: #7dd3fc;--color-white: #ffffff;--color-black: #000000;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-400: #9ca3af;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -2px rgba(0, 0, 0, .05)}*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;font-family:var(--font-family);background-color:var(--color-gray-100);color:var(--color-gray-900)}#app{height:100%;display:flex;flex-direction:column}.header{background:linear-gradient(135deg,var(--color-purple) 0%,var(--color-light-blue) 100%);color:var(--color-white);padding:12px 24px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-md);z-index:100}.header-brand{display:flex;align-items:center;gap:12px}.header-logo{font-size:24px;font-weight:700;letter-spacing:-.5px}.header-subtitle{font-size:11px;opacity:.9;max-width:200px;line-height:1.3}.header-actions{display:flex;gap:8px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;font-size:14px;font-weight:500;border:none;cursor:pointer;transition:all .2s 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