ver.1

src/index.css

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+@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
+
+:root {
+  /* Color Palette */
+  --bg-primary: #0f172a;
+  --bg-secondary: #1e293b;
+  --bg-tertiary: #334155;
+  
+  --text-primary: #f8fafc;
+  --text-secondary: #94a3b8;
+  --text-muted: #64748b;
+  
+  --accent-primary: #3b82f6; /* Blue for water / main */
+  --accent-secondary: #8b5cf6; /* Purple for aesthetic */
+  --accent-success: #10b981; /* Green for macros */
+  --accent-warning: #f59e0b; /* Orange */
+  --accent-danger: #ef4444; /* Red */
+  
+  --macro-protein: #8b5cf6;
+  --macro-fat: #f59e0b;
+  --macro-carbs: #10b981;
+  --water-color: #3b82f6;
+
+  --border-color: rgba(255, 255, 255, 0.1);
+  --glass-bg: rgba(30, 41, 59, 0.7);
+  --glass-border: rgba(255, 255, 255, 0.05);
+
+  --font-family: 'Inter', sans-serif;
+  
+  --radius-sm: 8px;
+  --radius-md: 12px;
+  --radius-lg: 16px;
+  --radius-xl: 24px;
+}
+
+* {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+body {
+  font-family: var(--font-family);
+  background-color: var(--bg-primary);
+  color: var(--text-primary);
+  line-height: 1.5;
+  -webkit-font-smoothing: antialiased;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+}
+
+#root {
+  width: 100%;
+  max-width: 480px; /* Mobile App feel */
+  margin: 0 auto;
+  min-height: 100vh;
+  display: flex;
+  flex-direction: column;
+  position: relative;
+  background-color: var(--bg-primary);
+  box-shadow: 0 0 20px rgba(0,0,0,0.5);
+  overflow-x: hidden;
+}
+
+/* Utilities */
+.glass-card {
+  background: var(--glass-bg);
+  backdrop-filter: blur(12px);
+  -webkit-backdrop-filter: blur(12px);
+  border: 1px solid var(--glass-border);
+  border-radius: var(--radius-lg);
+  padding: 20px;
+  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
+}
+
+.flex-center {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+}
+
+.flex-between {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.text-gradient {
+  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
+  -webkit-background-clip: text;
+  -webkit-text-fill-color: transparent;
+}
+
+/* Form Elements */
+input, select, button {
+  font-family: inherit;
+  font-size: 16px;
+}
+
+.input-field {
+  width: 100%;
+  background: var(--bg-secondary);
+  border: 1px solid var(--border-color);
+  color: var(--text-primary);
+  padding: 12px 16px;
+  border-radius: var(--radius-md);
+  margin-bottom: 16px;
+  transition: border-color 0.3s;
+}
+
+.input-field:focus {
+  outline: none;
+  border-color: var(--accent-primary);
+}
+
+.btn-primary {
+  width: 100%;
+  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
+  color: white;
+  border: none;
+  padding: 14px 20px;
+  border-radius: var(--radius-md);
+  font-weight: 600;
+  cursor: pointer;
+  transition: transform 0.2s, box-shadow 0.2s;
+  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
+}
+
+.btn-primary:active {
+  transform: scale(0.98);
+}
+
+.btn-secondary {
+  width: 100%;
+  background: var(--bg-tertiary);
+  color: var(--text-primary);
+  border: none;
+  padding: 14px 20px;
+  border-radius: var(--radius-md);
+  font-weight: 600;
+  cursor: pointer;
+  transition: background 0.2s;
+}
+
+.btn-secondary:hover {
+  background: var(--bg-secondary);
+}
+
+/* Animations */
+@keyframes fadeIn {
+  from { opacity: 0; transform: translateY(10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+.animate-fade-in {
+  animation: fadeIn 0.5s ease forwards;
+}
+
+/* Page Container */
+.page-container {
+  padding: 24px;
+  padding-bottom: 90px; /* Space for bottom nav */
+  flex: 1;
+  overflow-y: auto;
+}
+
+/* Typography */
+h1 { font-size: 28px; font-weight: 700; margin-bottom: 16px; }
+h2 { font-size: 22px; font-weight: 600; margin-bottom: 12px; }
+h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
+p { color: var(--text-secondary); margin-bottom: 12px; }