feat: release 0.7.0 celebration flow

app/static/css/style.css

@@ -1505,6 +1505,15 @@ p {
     align-items: stretch;
   }
 
+  .celebration-score {
+    width: 80vw;
+    font-size: clamp(5.5rem, 28vw, 8.5rem);
+  }
+
+  .celebration-glow {
+    width: min(78vw, 240px);
+  }
+
   .form-actions .button,
   .form-actions a.button {
     width: 100%;
@@ -1606,14 +1615,23 @@ p {
   width: 100vw;
   max-width: 100vw;
   min-height: 100vh;
+  min-height: 100dvh;
   margin: 0;
   padding: 12px;
   border: 0;
   background: transparent;
+  overflow: visible;
+  box-sizing: border-box;
+}
+
+.complete-dialog:not([open]) {
+  display: none;
+}
+
+.complete-dialog[open] {
   display: flex;
   align-items: center;
   justify-content: center;
-  overflow: visible;
 }
 
 .complete-dialog::backdrop {
@@ -1641,6 +1659,70 @@ p {
   touch-action: pan-y;
 }
 
+.celebration-layer {
+  position: fixed;
+  inset: 0;
+  pointer-events: none;
+  z-index: 90;
+  overflow: hidden;
+}
+
+.celebration-score,
+.celebration-glow,
+.celebration-particle {
+  position: absolute;
+  left: 50%;
+  top: 50%;
+}
+
+.celebration-score {
+  width: min(80vw, 520px);
+  padding: 0;
+  background:
+    linear-gradient(
+      135deg,
+      rgba(255, 255, 255, 0.98) 0%,
+      rgba(214, 234, 255, 0.92) 18%,
+      rgba(94, 168, 255, 0.72) 42%,
+      rgba(52, 211, 153, 0.74) 70%,
+      rgba(255, 255, 255, 0.92) 100%
+    );
+  color: transparent;
+  -webkit-text-fill-color: transparent;
+  -webkit-background-clip: text;
+  background-clip: text;
+  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.22);
+  font-size: clamp(6.5rem, 28vw, 12rem);
+  font-weight: 900;
+  line-height: 0.9;
+  letter-spacing: -0.08em;
+  text-align: center;
+  transform: translate(-50%, -50%);
+  filter:
+    drop-shadow(0 10px 24px rgba(94, 168, 255, 0.18))
+    drop-shadow(0 0 18px rgba(255, 255, 255, 0.18));
+  animation: celebration-score-in 1.15s cubic-bezier(0.18, 0.84, 0.24, 1) forwards;
+}
+
+.celebration-glow {
+  width: min(56vw, 280px);
+  aspect-ratio: 1;
+  border-radius: 50%;
+  background:
+    radial-gradient(circle, rgba(94, 168, 255, 0.26) 0%, rgba(52, 211, 153, 0.2) 42%, rgba(94, 168, 255, 0) 74%);
+  transform: translate(-50%, -50%);
+  filter: blur(10px);
+  animation: celebration-glow 0.95s ease-out forwards;
+}
+
+.celebration-particle {
+  width: var(--size, 10px);
+  height: var(--size, 10px);
+  border-radius: 999px;
+  transform: translate(-50%, -50%) rotate(var(--angle)) translateY(-4px);
+  animation: celebration-particle 0.82s ease-out var(--delay, 0s) forwards;
+}
+
 .choice-grid {
   display: grid;
   gap: 12px;
@@ -1681,6 +1763,61 @@ p {
   height: 24px;
 }
 
+@keyframes celebration-score-in {
+  0% {
+    opacity: 0;
+    transform: translate(-50%, -42%) scale(0.74);
+    filter: blur(16px);
+  }
+  12% {
+    opacity: 1;
+    transform: translate(-50%, -50%) scale(1);
+    filter: blur(0);
+  }
+  58% {
+    opacity: 1;
+    transform: translate(-50%, -53%) scale(1.03);
+    filter: blur(0);
+  }
+  100% {
+    opacity: 0;
+    transform: translate(-50%, -76%) scale(1.08);
+    filter: blur(20px);
+  }
+}
+
+@keyframes celebration-glow {
+  0% {
+    opacity: 0;
+    transform: translate(-50%, -50%) scale(0.32);
+  }
+  22% {
+    opacity: 1;
+    transform: translate(-50%, -50%) scale(1);
+  }
+  100% {
+    opacity: 0;
+    transform: translate(-50%, -50%) scale(1.42);
+  }
+}
+
+@keyframes celebration-particle {
+  0% {
+    opacity: 0;
+    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(0) scale(0.4);
+    filter: blur(4px);
+  }
+  18% {
+    opacity: 1;
+    filter: blur(0);
+  }
+  100% {
+    opacity: 0;
+    transform: translate(-50%, -50%) rotate(var(--angle)) translateY(calc(var(--distance) * -1)) scale(0.9);
+    filter: blur(6px);
+  }
+}
+
 @media (max-width: 759px) {
   .calendar-toolbar-mobile__header {
     align-items: flex-start;
@@ -1884,6 +2021,18 @@ p {
   }
 }
 
+@media (prefers-reduced-motion: reduce) {
+  .celebration-score {
+    animation-duration: 0.46s;
+  }
+
+  .celebration-glow,
+  .celebration-particle {
+    animation: none;
+    opacity: 0;
+  }
+}
+
 @media (min-width: 1100px) {
   .app-shell {
     display: grid;