feat: comprehensive SaaS UI redesign — Hero mesh, ToolCard accent, How-it-Works, bottom CTA banner, Header CTA

Agent-Logs-Url: https://github.com/aborayan2022/SaaS-PDF/sessions/b8e294e5-c1b0-4395-a003-cfa8f003bf27

Co-authored-by: aborayan2022 <119736744+aborayan2022@users.noreply.github.com>

frontend/tailwind.config.js

@@ -49,6 +49,40 @@ export default {
       transitionTimingFunction: {
         'smooth': 'cubic-bezier(0.4, 0, 0.2, 1)',
       },
+      animation: {
+        'float': 'float 3s ease-in-out infinite',
+        'shimmer': 'shimmer 2.5s linear infinite',
+        'fade-up': 'fadeUp 0.5s ease-out forwards',
+        'fade-in': 'fadeIn 0.4s ease-out forwards',
+        'scale-in': 'scaleIn 0.3s ease-out forwards',
+        'pulse-slow': 'pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite',
+      },
+      keyframes: {
+        float: {
+          '0%, 100%': { transform: 'translateY(0px)' },
+          '50%': { transform: 'translateY(-10px)' },
+        },
+        shimmer: {
+          '0%': { backgroundPosition: '-200% center' },
+          '100%': { backgroundPosition: '200% center' },
+        },
+        fadeUp: {
+          '0%': { opacity: '0', transform: 'translateY(24px)' },
+          '100%': { opacity: '1', transform: 'translateY(0)' },
+        },
+        fadeIn: {
+          '0%': { opacity: '0' },
+          '100%': { opacity: '1' },
+        },
+        scaleIn: {
+          '0%': { opacity: '0', transform: 'scale(0.92)' },
+          '100%': { opacity: '1', transform: 'scale(1)' },
+        },
+      },
+      backgroundImage: {
+        'gradient-radial': 'radial-gradient(var(--tw-gradient-stops))',
+        'gradient-conic': 'conic-gradient(from 180deg at 50% 50%, var(--tw-gradient-stops))',
+      },
     },
   },
   plugins: [],