diff --git a/public/css/style.css b/public/css/style.css
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+++ b/public/css/style.css
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+/* === Reset & Base === */
+*, *::before, *::after {
+  margin: 0;
+  padding: 0;
+  box-sizing: border-box;
+}
+
+html, body {
+  width: 100%;
+  height: 100%;
+  overflow: hidden;
+  background: #000;
+  color: #fff;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  cursor: none;
+}
+
+body.setup-mode {
+  cursor: default;
+}
+
+/* === Screens === */
+.screen {
+  position: absolute;
+  top: 0; left: 0;
+  width: 100%; height: 100%;
+}
+
+/* === Setup Screen === */
+#setup-screen {
+  background: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  cursor: default;
+}
+
+.setup-container {
+  width: 90%;
+  max-width: 600px;
+  max-height: 90vh;
+  overflow-y: auto;
+  padding: 2rem;
+}
+
+.setup-header {
+  text-align: center;
+  margin-bottom: 2rem;
+}
+
+.setup-header h1 {
+  font-size: 2.2rem;
+  font-weight: 300;
+  letter-spacing: 0.05em;
+  margin-bottom: 0.5rem;
+}
+
+.subtitle {
+  font-size: 0.95rem;
+  color: #888;
+}
+
+.subtitle.connected {
+  color: #4ade80;
+}
+
+.subtitle.error {
+  color: #f87171;
+}
+
+/* === Source Buttons === */
+.section h2 {
+  font-size: 1rem;
+  font-weight: 500;
+  color: #aaa;
+  text-transform: uppercase;
+  letter-spacing: 0.1em;
+  margin-bottom: 1rem;
+}
+
+.source-buttons {
+  display: flex;
+  gap: 0.75rem;
+  margin-bottom: 1rem;
+}
+
+.source-btn {
+  flex: 1;
+  padding: 1rem;
+  background: rgba(255, 255, 255, 0.06);
+  border: 2px solid rgba(255, 255, 255, 0.1);
+  border-radius: 12px;
+  color: #fff;
+  font-size: 0.95rem;
+  cursor: pointer;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 0.5rem;
+  transition: all 0.2s ease;
+}
+
+.source-btn:hover {
+  background: rgba(255, 255, 255, 0.1);
+  border-color: rgba(255, 255, 255, 0.25);
+}
+
+.source-btn.selected {
+  background: rgba(99, 102, 241, 0.2);
+  border-color: #6366f1;
+}
+
+.source-icon {
+  font-size: 1.5rem;
+}
+
+/* === Albums List === */
+.albums-list {
+  max-height: 300px;
+  overflow-y: auto;
+  margin-bottom: 1.5rem;
+}
+
+.loading-text {
+  text-align: center;
+  color: #666;
+  padding: 1rem;
+}
+
+.album-item {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  padding: 0.75rem 1rem;
+  background: rgba(255, 255, 255, 0.04);
+  border: 2px solid transparent;
+  border-radius: 10px;
+  margin-bottom: 0.5rem;
+  cursor: pointer;
+  transition: all 0.2s ease;
+}
+
+.album-item:hover {
+  background: rgba(255, 255, 255, 0.08);
+}
+
+.album-item.selected {
+  background: rgba(99, 102, 241, 0.15);
+  border-color: #6366f1;
+}
+
+.album-thumb {
+  width: 48px;
+  height: 48px;
+  border-radius: 8px;
+  object-fit: cover;
+  background: #222;
+}
+
+.album-info {
+  flex: 1;
+}
+
+.album-name {
+  font-size: 1rem;
+  font-weight: 500;
+}
+
+.album-count {
+  font-size: 0.8rem;
+  color: #888;
+  margin-top: 2px;
+}
+
+/* === Start Button === */
+.start-btn {
+  display: block;
+  width: 100%;
+  padding: 1rem;
+  background: #6366f1;
+  border: none;
+  border-radius: 12px;
+  color: #fff;
+  font-size: 1.1rem;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  letter-spacing: 0.03em;
+}
+
+.start-btn:hover:not(:disabled) {
+  background: #4f46e5;
+  transform: translateY(-1px);
+}
+
+.start-btn:disabled {
+  opacity: 0.3;
+  cursor: not-allowed;
+}
+
+/* === Setup Error === */
+.setup-error {
+  text-align: center;
+  padding: 2rem;
+}
+
+.setup-error p {
+  margin-bottom: 0.75rem;
+}
+
+.error-detail {
+  color: #888;
+  font-size: 0.85rem;
+}
+
+.setup-error button {
+  margin-top: 1rem;
+  padding: 0.75rem 2rem;
+  background: #6366f1;
+  border: none;
+  border-radius: 8px;
+  color: #fff;
+  font-size: 1rem;
+  cursor: pointer;
+}
+
+/* === Slideshow === */
+#slideshow-screen {
+  background: #000;
+}
+
+.bg-blur {
+  position: absolute;
+  top: -20px; left: -20px;
+  width: calc(100% + 40px);
+  height: calc(100% + 40px);
+  background-size: cover;
+  background-position: center;
+  filter: blur(30px) brightness(0.35);
+  opacity: 0;
+  transition: opacity 1.5s ease;
+  z-index: 1;
+}
+
+.bg-blur.visible {
+  opacity: 1;
+}
+
+.photo-layer {
+  position: absolute;
+  top: 0; left: 0;
+  width: 100%; height: 100%;
+  background-size: contain;
+  background-position: center;
+  background-repeat: no-repeat;
+  opacity: 0;
+  transition: opacity 2s ease;
+  z-index: 2;
+}
+
+.photo-layer.active {
+  opacity: 1;
+}
+
+/* === Overlay === */
+.overlay {
+  position: absolute;
+  top: 0; left: 0;
+  width: 100%; height: 100%;
+  z-index: 10;
+  pointer-events: none;
+  opacity: 1;
+  transition: opacity 0.5s ease;
+}
+
+.overlay.hidden {
+  opacity: 0;
+}
+
+.overlay-top-right {
+  position: absolute;
+  top: 1.5rem;
+  right: 2rem;
+  text-align: right;
+  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.8), 0 0 20px rgba(0, 0, 0, 0.5);
+}
+
+.clock {
+  font-size: 2.5rem;
+  font-weight: 200;
+  letter-spacing: 0.05em;
+  line-height: 1.2;
+}
+
+.date-display {
+  font-size: 0.95rem;
+  font-weight: 300;
+  color: rgba(255, 255, 255, 0.8);
+  margin-top: 0.25rem;
+}
+
+.overlay-bottom {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  width: 100%;
+  padding: 1.5rem 2rem 1rem;
+  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 100%);
+}
+
+.exif-info {
+  font-size: 0.85rem;
+  font-weight: 300;
+  color: rgba(255, 255, 255, 0.75);
+  margin-bottom: 0.75rem;
+  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.8);
+}
+
+.progress-bar {
+  width: 100%;
+  height: 3px;
+  background: rgba(255, 255, 255, 0.15);
+  border-radius: 2px;
+  overflow: hidden;
+}
+
+.progress-fill {
+  height: 100%;
+  width: 0%;
+  background: rgba(255, 255, 255, 0.5);
+  border-radius: 2px;
+  transition: width 0.3s linear;
+}
+
+/* === Touch Zones === */
+.touch-zone {
+  position: absolute;
+  top: 0;
+  height: 100%;
+  z-index: 20;
+  cursor: pointer;
+}
+
+.touch-left {
+  left: 0;
+  width: 20%;
+}
+
+.touch-center {
+  left: 20%;
+  width: 60%;
+}
+
+.touch-right {
+  right: 0;
+  width: 20%;
+}
+
+/* === Settings Button === */
+.settings-btn {
+  position: absolute;
+  top: 1rem;
+  left: 1rem;
+  width: 44px;
+  height: 44px;
+  background: rgba(0, 0, 0, 0.5);
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 50%;
+  color: #fff;
+  font-size: 1.2rem;
+  cursor: pointer;
+  z-index: 30;
+  opacity: 0;
+  transition: opacity 0.3s ease;
+  pointer-events: none;
+}
+
+.settings-btn.visible {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+/* === Scrollbar Styling === */
+.albums-list::-webkit-scrollbar,
+.setup-container::-webkit-scrollbar {
+  width: 6px;
+}
+
+.albums-list::-webkit-scrollbar-track,
+.setup-container::-webkit-scrollbar-track {
+  background: transparent;
+}
+
+.albums-list::-webkit-scrollbar-thumb,
+.setup-container::-webkit-scrollbar-thumb {
+  background: rgba(255, 255, 255, 0.15);
+  border-radius: 3px;
+}
+
+/* === Responsive === */
+@media (max-width: 600px) {
+  .setup-container {
+    padding: 1.25rem;
+  }
+  .setup-header h1 {
+    font-size: 1.6rem;
+  }
+  .clock {
+    font-size: 1.8rem;
+  }
+  .overlay-top-right {
+    top: 1rem;
+    right: 1rem;
+  }
+  .overlay-bottom {
+    padding: 1rem 1rem 0.5rem;
+  }
+  .source-buttons {
+    flex-direction: column;
+  }
+}
+
+/* === Loading Spinner === */
+.spinner {
+  display: inline-block;
+  width: 24px;
+  height: 24px;
+  border: 2px solid rgba(255,255,255,0.2);
+  border-top-color: #fff;
+  border-radius: 50%;
+  animation: spin 0.8s linear infinite;
+  margin-right: 0.5rem;
+  vertical-align: middle;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+/* === Fade-in Animation === */
+@keyframes fadeIn {
+  from { opacity: 0; transform: translateY(10px); }
+  to { opacity: 1; transform: translateY(0); }
+}
+
+.album-item {
+  animation: fadeIn 0.3s ease forwards;
+}