refact: update ui

src/index.css

@@ -2,6 +2,112 @@
 @tailwind components;
 @tailwind utilities;
 
+@layer base {
+  :root {
+    /* Warm Coral + Ink palette */
+    --color-primary: #e05a33;
+    --color-primary-hover: #c94a28;
+    --color-primary-light: #fef0ec;
+    --color-primary-glow: rgba(224, 90, 51, 0.15);
+
+    --color-secondary: #2a9d8f;
+    --color-secondary-light: #eef9f7;
+
+    --color-accent: #e9c46a;
+    --color-accent-light: #fdf6e3;
+
+    --color-bg: #faf8f4;
+    --color-surface: #ffffff;
+    --color-surface-raised: #f5f3ee;
+
+    --color-ink: #1c1917;
+    --color-ink-secondary: #57534e;
+    --color-ink-muted: #a8a29e;
+    --color-border: #e7e5e4;
+    --color-border-light: #f0eeea;
+  }
+
+  html {
+    scroll-behavior: smooth;
+  }
+
+  body {
+    font-family: 'DM Sans', system-ui, sans-serif;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+    color: var(--color-ink);
+    background-color: var(--color-bg);
+  }
+
+  h1, h2, h3, h4, h5, h6 {
+    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
+  }
+}
+
+@layer components {
+  /* Distinctive button styles */
+  .btn-primary {
+    @apply inline-flex items-center gap-2 font-semibold rounded-xl transition-all duration-200;
+    background-color: var(--color-primary);
+    color: white;
+    box-shadow: 0 4px 14px var(--color-primary-glow), 0 1px 3px rgba(0,0,0,0.08);
+  }
+  .btn-primary:hover {
+    background-color: var(--color-primary-hover);
+    box-shadow: 0 6px 20px var(--color-primary-glow), 0 2px 4px rgba(0,0,0,0.1);
+    transform: translateY(-1px);
+  }
+
+  .btn-secondary {
+    @apply inline-flex items-center gap-2 font-semibold rounded-xl transition-all duration-200;
+    background-color: var(--color-surface);
+    color: var(--color-ink);
+    border: 1.5px solid var(--color-border);
+  }
+  .btn-secondary:hover {
+    border-color: var(--color-ink-muted);
+    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
+    transform: translateY(-1px);
+  }
+
+  /* Card with warm shadow */
+  .card {
+    background-color: var(--color-surface);
+    border: 1px solid var(--color-border-light);
+    border-radius: 1rem;
+    box-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.02);
+    transition: all 0.25s ease;
+  }
+  .card:hover {
+    box-shadow: 0 4px 16px rgba(0,0,0,0.06), 0 8px 24px rgba(0,0,0,0.03);
+    transform: translateY(-2px);
+  }
+
+  /* Section spacing */
+  .section-padding {
+    @apply py-24 lg:py-32 px-6;
+  }
+
+  /* Grain texture overlay */
+  .grain::after {
+    content: '';
+    position: absolute;
+    inset: 0;
+    opacity: 0.3;
+    pointer-events: none;
+    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
+  }
+
+  /* Prose overrides for blog/docs */
+  .prose-warm {
+    --tw-prose-body: var(--color-ink-secondary);
+    --tw-prose-headings: var(--color-ink);
+    --tw-prose-links: var(--color-primary);
+    --tw-prose-bold: var(--color-ink);
+    --tw-prose-code: var(--color-primary);
+  }
+}
+
 @layer utilities {
   .custom-scrollbar::-webkit-scrollbar {
     width: 6px;
@@ -13,15 +119,34 @@
   }
 
   .custom-scrollbar::-webkit-scrollbar-thumb {
-    background-color: rgba(156, 163, 175, 0.3);
+    background-color: rgba(168, 162, 158, 0.3);
     border-radius: 20px;
   }
 
   .custom-scrollbar::-webkit-scrollbar-thumb:hover {
-    background-color: rgba(156, 163, 175, 0.5);
+    background-color: rgba(168, 162, 158, 0.5);
   }
-}
 
-body {
-  @apply antialiased text-gray-900 bg-gray-50;
+  /* Fade-in animation */
+  @keyframes fade-up {
+    from {
+      opacity: 0;
+      transform: translateY(16px);
+    }
+    to {
+      opacity: 1;
+      transform: translateY(0);
+    }
+  }
+
+  .animate-fade-up {
+    animation: fade-up 0.6s ease-out forwards;
+  }
+
+  /* Stagger delays */
+  .delay-100 { animation-delay: 100ms; }
+  .delay-200 { animation-delay: 200ms; }
+  .delay-300 { animation-delay: 300ms; }
+  .delay-400 { animation-delay: 400ms; }
+  .delay-500 { animation-delay: 500ms; }
 }