other files

.env.example

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+GEMINI_API_KEY={your_key}

tailwind.config.js

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+/** @type {import('tailwindcss').Config} */
+module.exports = {
+  content: [
+    './pages/**/*.{js,ts,jsx,tsx,mdx}',
+    './components/**/*.{js,ts,jsx,tsx,mdx}',
+  ],
+  theme: {
+    extend: {
+      fontFamily: {
+        sans: ['Google Sans', 'sans-serif'],
+        display: ['Google Sans Display', 'sans-serif'],
+      },
+      colors: {
+        gray: {
+          50: '#f9fafb',
+          100: '#f3f4f6',
+          200: '#e5e7eb',
+          300: '#d1d5db',
+          400: '#9ca3af',
+          500: '#6b7280',
+          600: '#4b5563',
+          700: '#374151',
+          800: '#1f2937',
+          900: '#111827',
+          950: '#030712',
+        },
+      },
+      boxShadow: {
+        'soft': '0 2px 5px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.03)',
+        'medium': '0 4px 10px rgba(0, 0, 0, 0.05), 0 2px 6px rgba(0, 0, 0, 0.03)',
+      },
+    },
+  },
+  plugins: [],
+}