:root {
  color-scheme: dark;
  --bg: #1c1336;
  --bg-2: #2a1a52;
  --bg-3: #3a2370;
  --ink: #f6efff;
  --ink-soft: #d6c8ee;
  --ink-faint: #a294c4;
  --cream: #fbf3df;
  --cream-hi: #fffbe9;
  --cream-deep: #ead9a8;
  --violet: #8a5cff;
  --violet-hi: #c3a8ff;
  --violet-deep: #4a25b0;
  --gold: #f5c84b;
  --gold-hi: #ffe28a;
  --gold-deep: #b8881c;
  --rose: #e58fc8;
  --rose-hi: #ffc6e4;
  --line: rgba(195, 168, 255, 0.22);
  --shadow: 0 30px 80px -28px rgba(10, 0, 40, 0.65);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: ui-rounded, "SF Pro Rounded", "Inter", system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body {
  position: relative;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 24px max(24px, env(safe-area-inset-bottom));
  background:
    radial-gradient(900px 600px at 12% -8%, rgba(138, 92, 255, 0.32), transparent 60%),
    radial-gradient(800px 600px at 92% 6%, rgba(245, 200, 75, 0.20), transparent 60%),
    radial-gradient(900px 700px at 50% 110%, rgba(229, 143, 200, 0.18), transparent 60%),
    var(--bg);
}

#confetti {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 460px;
  padding: 30px 26px 26px;
  background: linear-gradient(160deg, rgba(58, 35, 112, 0.78), rgba(28, 19, 54, 0.82));
  border: 1px solid var(--line);
  border-radius: 26px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  text-align: center;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 26px;
  pointer-events: none;
  background: linear-gradient(140deg, rgba(245, 200, 75, 0.22), rgba(195, 168, 255, 0.10) 40%, transparent 70%);
  mix-blend-mode: screen;
  opacity: 0.85;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.32em;
  font-size: 11px;
  color: var(--ink-faint);
}

.title {
  margin: 0;
  display: grid;
  gap: 2px;
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: clamp(38px, 10.5vw, 60px);
}

.line {
  display: inline-block;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 6px 18px rgba(138, 92, 255, 0.45));
}

.line-top {
  background-image: linear-gradient(180deg, var(--violet-hi), var(--violet) 60%, var(--violet-deep));
  transform: rotate(-1.5deg);
}

.line-mid {
  background-image: linear-gradient(180deg, var(--rose-hi), var(--rose) 55%, #b6549a);
  font-style: italic;
  font-size: 1.05em;
  letter-spacing: -0.03em;
}

.line-bot {
  background-image: linear-gradient(180deg, var(--gold-hi), var(--gold) 50%, var(--gold-deep));
  transform: rotate(1.5deg);
}

.bang {
  display: inline-block;
  background-image: linear-gradient(180deg, var(--gold-hi), var(--violet-hi));
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  -webkit-text-fill-color: transparent;
  margin-left: 2px;
  animation: bang 1.6s cubic-bezier(.22,.9,.3,1.2) infinite;
  transform-origin: bottom left;
}

@keyframes bang {
  0%, 70%, 100% { transform: rotate(0deg) scale(1); }
  78%           { transform: rotate(-12deg) scale(1.18); }
  86%           { transform: rotate(10deg) scale(1.10); }
  92%           { transform: rotate(-3deg) scale(1.02); }
}

.cake {
  position: relative;
  width: 200px;
  height: 170px;
  margin: 26px auto 8px;
}

.plate {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 200px;
  height: 14px;
  border-radius: 50%;
  background: linear-gradient(180deg, #f0e2ff, #b59ee0 60%, #5a3da0);
  box-shadow: 0 10px 22px -8px rgba(10, 0, 40, 0.65);
}

.layer {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 12px 12px 6px 6px;
  box-shadow:
    inset 0 -6px 0 rgba(0, 0, 0, 0.22),
    inset 0 2px 0 rgba(255, 255, 255, 0.30),
    0 8px 18px -8px rgba(10, 0, 40, 0.65);
}

.layer-bottom {
  bottom: 12px;
  width: 168px;
  height: 50px;
  background: linear-gradient(180deg, var(--violet-hi), var(--violet) 70%, var(--violet-deep));
}

.layer-middle {
  bottom: 60px;
  width: 132px;
  height: 42px;
  background: linear-gradient(180deg, var(--cream-hi), var(--cream) 70%, var(--cream-deep));
}

.layer-top {
  bottom: 100px;
  width: 96px;
  height: 36px;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold) 70%, var(--gold-deep));
}

.drip {
  position: absolute;
  width: 14px;
  height: 18px;
  border-radius: 0 0 8px 8px;
  background: inherit;
}

.drip-1 { left: 30%; bottom: 56px; background: var(--cream-hi); }
.drip-2 { left: 60%; bottom: 56px; width: 10px; height: 14px; background: var(--cream); }
.drip-3 { left: 38%; bottom: 96px; background: var(--gold-hi); }
.drip-4 { left: 58%; bottom: 96px; width: 10px; height: 14px; background: var(--gold); }

.candle {
  position: absolute;
  left: 50%;
  bottom: 134px;
  transform: translateX(-50%);
  width: 10px;
  height: 26px;
  border-radius: 3px;
  background: repeating-linear-gradient(
    180deg,
    var(--cream-hi) 0 6px,
    var(--violet) 6px 12px
  );
  box-shadow:
    inset 0 -3px 0 rgba(0, 0, 0, 0.25),
    inset 0 2px 0 rgba(255, 255, 255, 0.55);
}

.wick {
  position: absolute;
  left: 50%;
  top: -4px;
  transform: translateX(-50%);
  width: 2px;
  height: 5px;
  background: #2a1a05;
  border-radius: 1px;
}

.flame {
  position: absolute;
  left: 50%;
  top: -22px;
  transform: translateX(-50%);
  width: 14px;
  height: 22px;
  pointer-events: none;
  filter: drop-shadow(0 0 12px rgba(255, 215, 130, 0.95));
}

.flame-outer,
.flame-inner {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  transform-origin: 50% 100%;
  animation: flicker 1.4s ease-in-out infinite;
}

.flame-outer {
  width: 14px;
  height: 22px;
  background: radial-gradient(circle at 50% 80%, #fff2b0 0%, #ffc14a 50%, #ff7d2a 100%);
}

.flame-inner {
  width: 7px;
  height: 12px;
  background: radial-gradient(circle at 50% 80%, #ffffff 0%, #fff5b8 60%, #ffd56b 100%);
  animation-duration: 0.9s;
}

@keyframes flicker {
  0%, 100% { transform: translateX(-50%) scale(1, 1) skewX(0deg); }
  25%      { transform: translateX(-52%) scale(0.96, 1.06) skewX(-2deg); }
  50%      { transform: translateX(-48%) scale(1.04, 0.96) skewX(2deg); }
  75%      { transform: translateX(-51%) scale(0.98, 1.04) skewX(-1deg); }
}

.sparkle {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-hi);
  box-shadow: 0 0 10px var(--gold);
  opacity: 0;
  animation: twinkle 2.6s ease-in-out infinite;
}

.sparkle.s1 { top: 8px;  left: 22%; animation-delay: 0s;   }
.sparkle.s2 { top: 22px; right: 20%; animation-delay: 0.7s; background: var(--violet-hi); box-shadow: 0 0 10px var(--violet); }
.sparkle.s3 { top: 0;    left: 50%;  animation-delay: 1.4s; }
.sparkle.s4 { top: 36px; right: 38%; animation-delay: 2.0s; background: var(--rose-hi); box-shadow: 0 0 10px var(--rose); }

@keyframes twinkle {
  0%, 100% { opacity: 0; transform: scale(0.6); }
  40%      { opacity: 1; transform: scale(1.2); }
  60%      { opacity: 0.7; transform: scale(1); }
}

.stars {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  border-radius: 26px;
}

.star {
  position: absolute;
  top: -22px;
  width: 14px;
  height: 14px;
  opacity: 0.9;
  filter: drop-shadow(0 0 8px rgba(255, 226, 138, 0.7));
  animation: drift 12s linear infinite;
  transform-origin: center;
  background: var(--gold-hi);
  clip-path: polygon(
    50% 0%, 61% 35%, 98% 35%,
    68% 57%, 79% 91%, 50% 70%,
    21% 91%, 32% 57%, 2% 35%, 39% 35%
  );
}

.star.sA {
  left: 10%;
  background: var(--gold-hi);
  animation-delay: 0s;
}

.star.sB {
  left: 32%;
  background: var(--violet-hi);
  animation-delay: 2.2s;
  width: 12px;
  height: 12px;
  filter: drop-shadow(0 0 8px rgba(195, 168, 255, 0.7));
}

.star.sC {
  left: 56%;
  background: var(--rose-hi);
  animation-delay: 4.6s;
  width: 11px;
  height: 11px;
  filter: drop-shadow(0 0 8px rgba(255, 198, 228, 0.7));
}

.star.sD {
  left: 76%;
  background: var(--gold);
  animation-delay: 6.8s;
  width: 13px;
  height: 13px;
}

.star.sE {
  left: 90%;
  background: var(--cream-hi);
  animation-delay: 8.4s;
  width: 10px;
  height: 10px;
  filter: drop-shadow(0 0 8px rgba(255, 251, 233, 0.8));
}

@keyframes drift {
  0%   { transform: translateY(0)     translateX(0)    rotate(0deg);   opacity: 0; }
  10%  { opacity: 0.95; }
  50%  { transform: translateY(280px) translateX(-18px) rotate(180deg); }
  90%  { opacity: 0.95; }
  100% { transform: translateY(560px) translateX(14px)  rotate(360deg); opacity: 0; }
}

.message {
  margin: 18px auto 18px;
  max-width: 32ch;
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 0;
  cursor: pointer;
  padding: 12px 22px;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1c1336;
  background: linear-gradient(180deg, var(--gold-hi), var(--gold) 55%, var(--gold-deep));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.55),
    inset 0 -2px 0 rgba(80, 50, 0, 0.35),
    0 14px 28px -10px rgba(245, 200, 75, 0.55),
    0 0 0 1px rgba(80, 50, 0, 0.25);
  transition: transform 120ms ease, box-shadow 120ms ease;
  -webkit-tap-highlight-color: transparent;
}

.primary:hover { transform: translateY(-1px); }
.primary:active { transform: translateY(1px) scale(0.99); }

.primary:focus-visible {
  outline: 2px solid var(--violet-hi);
  outline-offset: 4px;
}

.primary .emoji { font-size: 18px; }

@media (max-width: 380px) {
  .cake { transform: scale(0.92); }
  .card { padding: 24px 20px 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .bang, .flame-outer, .flame-inner, .sparkle, .star { animation: none; }
}