Chore: Restructure Repository for SvelteKit

_old/design/base/animations.css

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+@keyframes fadeIn {
+  from { opacity: 0; }
+  to   { opacity: 1; }
+}
+
+@keyframes fadeUp {
+  from { opacity: 0; transform: translateY(5px); }
+  to   { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes fadeDown {
+  from { opacity: 0; transform: translateY(-5px); }
+  to   { opacity: 1; transform: translateY(0); }
+}
+
+@keyframes scaleIn {
+  from { opacity: 0; transform: scale(0.97); }
+  to   { opacity: 1; transform: scale(1); }
+}
+
+@keyframes spin {
+  from { transform: rotate(0deg); }
+  to   { transform: rotate(360deg); }
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50%       { opacity: 0.35; }
+}
+
+@keyframes shimmer {
+  from { background-position: -200% 0; }
+  to   { background-position:  200% 0; }
+}
+
+.anim-fade-in   { animation: fadeIn   0.14s ease both; }
+.anim-fade-up   { animation: fadeUp   0.18s ease both; }
+.anim-fade-down { animation: fadeDown 0.18s ease both; }
+.anim-scale-in  { animation: scaleIn  0.14s ease both; }
+.anim-pulse     { animation: pulse    1.6s  ease infinite; }
+.anim-spin      { animation: spin     0.7s  linear infinite; }
+
+.skeleton {
+  background: linear-gradient(90deg, var(--bg-raised) 25%, var(--bg-overlay) 50%, var(--bg-raised) 75%);
+  background-size: 200% 100%;
+  animation: shimmer 1.4s ease infinite;
+  border-radius: var(--radius-sm);
+}

_old/design/base/index.css

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+@import "./reset.css";
+@import "./animations.css";
+@import "./scrollbars.css";
+@import "./typography.css";

_old/design/base/reset.css

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+*, *::before, *::after {
+  box-sizing: border-box;
+  margin: 0;
+  padding: 0;
+}
+
+html, body {
+  height: 100%;
+  overflow: hidden;
+  background: var(--bg-void);
+  color: var(--text-primary);
+}
+
+#app {
+  height: 100%;
+}
+
+button {
+  cursor: pointer;
+  font: inherit;
+  color: inherit;
+  background: none;
+  border: none;
+  padding: 0;
+}
+
+input, textarea, select {
+  font: inherit;
+  color: inherit;
+}
+
+a {
+  color: inherit;
+  text-decoration: none;
+}
+
+ul, ol { list-style: none; }
+
+img, svg { display: block; max-width: 100%; }
+
+p { margin: 0; }

_old/design/base/scrollbars.css

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+* {
+  scrollbar-width: thin;
+  scrollbar-color: transparent transparent;
+}
+
+*::-webkit-scrollbar       { width: 4px; height: 4px; }
+*::-webkit-scrollbar-track { background: transparent; }
+*::-webkit-scrollbar-thumb { background: transparent; border-radius: 99px; }
+*::-webkit-scrollbar-thumb:hover { background: transparent; }

_old/design/base/typography.css

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+body {
+  font-family: var(--font-sans);
+  font-size: var(--text-base);
+  font-weight: var(--weight-normal);
+  line-height: var(--leading-base);
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  text-rendering: optimizeLegibility;
+}