:root {
  --sb-red: #d4202f;
  --sb-red-deep: #760d17;
  --sb-black: #08090b;
  --sb-panel: #121316;
  --sb-gold: #e4bd67;
  --sb-cream: #fff4d6;
}

.sb-modal-open { overflow: hidden; }

.sb-backdrop,
.sb-backdrop * { box-sizing: border-box; }

.sb-backdrop {
  position: fixed;
  inset: 0;
  z-index: 2147483001;
  display: grid;
  place-items: center;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 20%, rgba(212, 32, 47, .22), transparent 42%),
    rgba(2, 2, 3, .88);
  opacity: 0;
  transition: opacity 180ms ease;
}

.sb-backdrop.is-visible { opacity: 1; }

.sb-card {
  position: relative;
  width: min(92vw, 520px);
  overflow: hidden;
  padding: 32px 38px;
  border: 1px solid rgba(228, 189, 103, .5);
  border-radius: 24px;
  color: var(--sb-cream);
  text-align: center;
  font-family: "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background:
    linear-gradient(180deg, rgba(30, 10, 13, .98), rgba(8, 9, 11, .99) 48%),
    var(--sb-black);
  box-shadow:
    0 34px 95px rgba(0, 0, 0, .78),
    0 0 0 5px rgba(212, 32, 47, .06),
    0 0 76px rgba(212, 32, 47, .16);
  transform: translateY(16px) scale(.98);
  transition: transform 180ms ease;
}

.sb-backdrop.is-visible .sb-card { transform: none; }

.sb-card::after {
  content: "";
  position: absolute;
  inset: 9px;
  z-index: 0;
  pointer-events: none;
  border: 1px solid rgba(228, 189, 103, .13);
  border-radius: 17px;
}

.sb-close {
  position: absolute;
  top: 15px;
  right: 15px;
  z-index: 6;
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  border: 1px solid rgba(228, 189, 103, .35);
  border-radius: 50%;
  color: #fff;
  font-size: 28px;
  line-height: 1;
  background: rgba(7, 7, 9, .82);
  cursor: pointer;
  transition: color 150ms ease, background 150ms ease, transform 150ms ease;
}

.sb-close:hover,
.sb-close:focus-visible {
  color: #fff;
  background: var(--sb-red);
  transform: rotate(8deg);
  outline: 3px solid rgba(255, 255, 255, .28);
  outline-offset: 2px;
}

.sb-wheel-stage {
  position: relative;
  width: min(100%, 330px);
  height: 196px;
  margin: 0 auto 12px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(0, 0, 0, .6), transparent 30% 70%, rgba(0, 0, 0, .6)),
    repeating-linear-gradient(135deg, rgba(255, 255, 255, .018) 0 2px, transparent 2px 8px),
    #10090a;
  border: 1px solid rgba(228, 189, 103, .3);
  border-radius: 16px;
}

.sb-wheel {
  position: absolute;
  top: 8px;
  left: 50%;
  display: grid;
  width: 178px;
  height: 178px;
  place-items: center;
  border: 7px solid #20170e;
  border-radius: 50%;
  background:
    radial-gradient(circle, #070708 0 18%, transparent 18% 28%, #e4bd67 29% 31%, transparent 32%),
    repeating-conic-gradient(from -8deg, #a51220 0deg 10deg, #08090b 10deg 20deg);
  box-shadow:
    0 0 0 3px var(--sb-gold),
    inset 0 0 0 8px #4e3518,
    0 18px 38px rgba(0, 0, 0, .7);
  transform: translateX(-50%);
}

.sb-wheel::before {
  content: "";
  position: absolute;
  inset: 25px;
  border: 2px dashed rgba(255, 244, 214, .54);
  border-radius: 50%;
}

.sb-wheel-core {
  position: relative;
  z-index: 1;
  display: grid;
  width: 49px;
  height: 49px;
  place-items: center;
  border: 2px solid var(--sb-gold);
  border-radius: 50%;
  color: var(--sb-gold);
  font-family: Georgia, serif;
  font-size: 14px;
  font-weight: 900;
  letter-spacing: .08em;
  background: #070708;
}

.sb-pointer {
  position: absolute;
  left: 50%;
  top: 1px;
  width: 0;
  height: 0;
  border-right: 13px solid transparent;
  border-top: 25px solid var(--sb-gold);
  border-left: 13px solid transparent;
  filter: drop-shadow(0 4px 4px rgba(0, 0, 0, .5));
  transform: translateX(-50%);
}

.sb-chip {
  position: absolute;
  bottom: 12px;
  width: 45px;
  height: 45px;
  border: 5px dashed rgba(255, 255, 255, .72);
  border-radius: 50%;
  box-shadow: 0 9px 18px rgba(0, 0, 0, .55);
}

.sb-chip::after {
  content: "♛";
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  color: rgba(255, 255, 255, .84);
  font-size: 20px;
}

.sb-chip-red { right: 18px; background: var(--sb-red); transform: rotate(16deg); }
.sb-chip-black { left: 18px; background: #141519; transform: rotate(-18deg); }

.sb-ball {
  position: absolute;
  top: 10px;
  left: 50%;
  z-index: 3;
  width: 12px;
  height: 12px;
  border: 2px solid #e8ded0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 0 9px rgba(255, 255, 255, .8);
  transform: translateX(-50%);
}

.sb-eyebrow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  color: var(--sb-gold);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .2em;
}

.sb-eyebrow span {
  width: 30px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sb-gold));
}

.sb-eyebrow span:last-child { transform: rotate(180deg); }

.sb-title {
  position: relative;
  z-index: 1;
  margin: 9px 0 18px;
  color: #fff;
  font-size: clamp(28px, 7vw, 39px);
  line-height: 1.2;
  letter-spacing: .08em;
}

.sb-game {
  position: relative;
  z-index: 1;
  margin: 0 auto 18px;
  padding: 12px;
  border: 1px solid rgba(228, 189, 103, .26);
  border-radius: 18px;
  background: rgba(0, 0, 0, .34);
}

.sb-game.is-spinning .sb-wheel { animation: sbWheelSpin 1250ms cubic-bezier(.12, .72, .18, 1) both; }
.sb-game.is-spinning .sb-ball { animation: sbBallRace 1250ms cubic-bezier(.15, .68, .22, 1) both; }

@keyframes sbWheelSpin {
  from { transform: translateX(-50%) rotate(0); }
  to { transform: translateX(-50%) rotate(520deg); }
}

@keyframes sbBallRace {
  0% { transform: translateX(-50%) rotate(0) translateY(0); }
  70% { transform: translateX(-50%) rotate(-620deg) translateY(25px); }
  100% { transform: translateX(-50%) rotate(-720deg) translateY(35px); }
}

.sb-game.is-revealed .sb-wheel { transform: translateX(-50%) rotate(520deg); }
.sb-game.is-revealed .sb-ball {
  top: 21px;
  left: calc(50% + 37px);
  box-shadow: 0 0 14px rgba(255, 255, 255, .95), 0 0 25px rgba(212, 32, 47, .7);
}

.sb-game-button {
  width: 100%;
  min-height: 48px;
  padding: 10px 16px;
  border: 1px solid #ff5663;
  border-radius: 11px;
  color: #fff;
  font: 900 16px/1.3 "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  background: linear-gradient(105deg, #7b0c16, #d4202f 52%, #a4111e);
  box-shadow: 0 9px 20px rgba(130, 8, 20, .38);
  cursor: pointer;
  transition: transform 150ms ease, filter 150ms ease;
}

.sb-game-button:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.08); }
.sb-game-button:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }
.sb-game-button:disabled { cursor: default; filter: saturate(.8); }

.sb-game-result {
  min-height: 22px;
  margin: 8px 0 0;
  color: rgba(211, 199, 193, .68);
  font-size: 13px;
  font-weight: 700;
}

.sb-game.is-revealed .sb-game-result {
  color: var(--sb-gold);
  text-shadow: 0 0 12px rgba(228, 189, 103, .4);
}

.sb-offer {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 13px;
  padding: 18px;
  border: 1px solid rgba(228, 189, 103, .3);
  border-radius: 16px;
  background:
    linear-gradient(135deg, rgba(212, 32, 47, .12), transparent 45%),
    rgba(0, 0, 0, .42);
}

.sb-offer-block {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.sb-offer-block span {
  color: #d4c5ba;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .1em;
}

.sb-offer-block strong {
  color: #fff;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(39px, 10vw, 60px);
  line-height: .92;
  text-shadow: 0 0 20px rgba(255, 255, 255, .16);
}

.sb-offer-block.sb-bonus strong {
  color: var(--sb-gold);
  text-shadow: 0 0 23px rgba(228, 189, 103, .28);
}

.sb-offer-divider {
  color: var(--sb-red);
  font-size: 19px;
  text-shadow: 0 0 14px rgba(212, 32, 47, .5);
}

.sb-desc {
  position: relative;
  z-index: 1;
  max-width: 400px;
  margin: 20px auto;
  color: #d3c7c1;
  font-size: 15px;
  line-height: 1.75;
}

.sb-cta {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
  min-height: 58px;
  padding: 14px 20px;
  border: 1px solid #ff5663;
  border-radius: 12px;
  color: #fff;
  font-size: 18px;
  font-weight: 900;
  letter-spacing: .04em;
  text-decoration: none;
  background: linear-gradient(105deg, #7b0c16, #d4202f 52%, #a4111e);
  box-shadow: 0 14px 28px rgba(130, 8, 20, .4);
  transition: transform 150ms ease, filter 150ms ease;
}

.sb-cta span:last-child { color: var(--sb-gold); font-size: 24px; }
.sb-cta:hover { transform: translateY(-2px); filter: brightness(1.08); }
.sb-cta:focus-visible { outline: 3px solid #fff; outline-offset: 3px; }

.sb-note {
  position: relative;
  z-index: 1;
  margin: 15px 0 0;
  color: rgba(211, 199, 193, .62);
  font-size: 12px;
  line-height: 1.65;
}

@media (max-width: 560px) {
  .sb-backdrop { align-items: end; padding: 0; }
  .sb-card {
    width: 100%;
    max-height: 94vh;
    overflow-y: auto;
    padding: 28px 20px 24px;
    border-radius: 24px 24px 0 0;
    transform: translateY(100%);
  }
  .sb-backdrop.is-visible .sb-card { transform: translateY(0); }
  .sb-wheel-stage { height: 190px; }
  .sb-wheel { top: 8px; width: 172px; height: 172px; }
  .sb-chip { width: 42px; height: 42px; bottom: 10px; }
  .sb-chip-red { right: 12px; }
  .sb-chip-black { left: 12px; }
  .sb-offer { gap: 8px; padding: 16px 10px; }
}

@media (max-width: 350px) {
  .sb-offer-block strong { font-size: 36px; }
  .sb-title { font-size: 25px; }
  .sb-offer-divider { font-size: 15px; }
}

@media (prefers-reduced-motion: reduce) {
  .sb-backdrop,
  .sb-card,
  .sb-close,
  .sb-cta,
  .sb-wheel,
  .sb-ball,
  .sb-game-button { transition: none; animation: none; }
}