:root {
  color-scheme: dark;
  --bg: #03020d;
  --panel: rgba(10, 15, 34, 0.58);
  --panel-strong: rgba(13, 19, 42, 0.82);
  --text: #eef7ff;
  --muted: #9fb0d1;
  --cyan: #20f3ff;
  --pink: #ff2bd6;
  --violet: #8a5cff;
  --gold: #ffd166;
  --green: #66ffb3;
  --danger: #ff4d6d;
  --card-w: 112px;
  --card-h: 154px;
  --radius: 24px;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 15% 12%, rgba(255, 43, 214, 0.23), transparent 26rem),
    radial-gradient(circle at 82% 22%, rgba(32, 243, 255, 0.22), transparent 27rem),
    radial-gradient(circle at 50% 88%, rgba(138, 92, 255, 0.18), transparent 30rem),
    linear-gradient(145deg, #02010a 0%, #071025 52%, #11051e 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(32, 243, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 43, 214, 0.04) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: linear-gradient(to bottom, transparent, #000 12%, #000 84%, transparent);
  transform: perspective(900px) rotateX(58deg) translateY(18vh) scale(1.25);
  transform-origin: bottom center;
  animation: gridDrift 16s linear infinite;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.026) 0,
    rgba(255,255,255,0.026) 1px,
    transparent 1px,
    transparent 4px
  );
  mix-blend-mode: soft-light;
  opacity: .42;
}

body.shake .game-shell { animation: screenShake 420ms cubic-bezier(.36,.07,.19,.97); }

button, select { font: inherit; }
button { -webkit-tap-highlight-color: transparent; }

#starfield {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: -3;
}

.aurora {
  position: fixed;
  width: 44vw;
  height: 44vw;
  min-width: 420px;
  min-height: 420px;
  border-radius: 999px;
  z-index: -1;
  filter: blur(44px);
  opacity: .34;
  pointer-events: none;
  mix-blend-mode: screen;
}
.aurora-a { left: -12vw; top: 8vh; background: radial-gradient(circle, rgba(255,43,214,.58), transparent 64%); animation: floatA 9s ease-in-out infinite; }
.aurora-b { right: -15vw; bottom: -13vh; background: radial-gradient(circle, rgba(32,243,255,.55), transparent 65%); animation: floatB 11s ease-in-out infinite; }

.game-shell {
  width: min(1380px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 34px;
  display: grid;
  gap: 16px;
}

.glass-panel {
  position: relative;
  border: 1px solid rgba(150, 235, 255, 0.22);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(255,255,255,.095), rgba(255,255,255,.025)),
    var(--panel);
  box-shadow:
    0 24px 80px rgba(0,0,0,.42),
    inset 0 1px 0 rgba(255,255,255,.16),
    0 0 34px rgba(32, 243, 255, .08);
  backdrop-filter: blur(18px) saturate(135%);
}

.hero-panel {
  display: grid;
  grid-template-columns: 1fr minmax(320px, 500px);
  gap: 22px;
  align-items: end;
  padding: clamp(20px, 3vw, 34px);
  overflow: hidden;
}
.hero-panel::before, .board-wrap::before, .hud::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(115deg, rgba(32,243,255,.6), transparent 28%, rgba(255,43,214,.52) 65%, transparent);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  margin-bottom: 12px;
  padding: 6px 12px;
  border-radius: 999px;
  color: var(--cyan);
  border: 1px solid rgba(32, 243, 255, .34);
  background: rgba(32, 243, 255, .08);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  text-shadow: 0 0 14px rgba(32, 243, 255, .62);
}
.eyebrow.mini { font-size: .68rem; margin-bottom: 6px; }

h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 8px;
  font-size: clamp(2.25rem, 7vw, 5.6rem);
  line-height: .92;
  letter-spacing: -0.075em;
  background: linear-gradient(90deg, #fff 0%, #77f7ff 30%, #ff7ee7 68%, #ffe6a3 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 0 18px rgba(32, 243, 255, .23));
}
.subtitle {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.control-grid label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: .86rem;
  font-weight: 700;
}
select {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  color: var(--text);
  border-radius: 16px;
  border: 1px solid rgba(32, 243, 255, .25);
  background: rgba(2, 5, 18, .72);
  outline: none;
  box-shadow: inset 0 0 18px rgba(32, 243, 255, .045);
}
select:focus { border-color: rgba(255, 43, 214, .72); box-shadow: 0 0 0 3px rgba(255, 43, 214, .13); }

.primary-btn, .ghost-btn, .oracle-btn {
  border: 0;
  color: var(--text);
  cursor: pointer;
  transition: transform .18s ease, filter .18s ease, border-color .18s ease, opacity .18s ease;
}
.primary-btn {
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 16px;
  color: #051020;
  font-weight: 950;
  letter-spacing: .06em;
  background: linear-gradient(135deg, var(--cyan), #8afff1 38%, var(--pink));
  box-shadow: 0 12px 38px rgba(32, 243, 255, .22), 0 0 28px rgba(255, 43, 214, .2);
}
.ghost-btn {
  min-height: 48px;
  padding: 12px 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.16);
  background: rgba(255,255,255,.06);
  font-weight: 850;
}
.ghost-btn.compact { min-height: 40px; padding: 9px 14px; border-radius: 13px; }
.primary-btn:hover, .ghost-btn:hover, .oracle-btn:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.09); }
.primary-btn:active, .ghost-btn:active, .oracle-btn:active:not(:disabled) { transform: translateY(0) scale(.98); }
button:disabled { cursor: not-allowed; opacity: .58; }

.hud {
  display: grid;
  grid-template-columns: minmax(230px, 1.25fr) repeat(4, minmax(88px, .46fr)) minmax(176px, .72fr);
  gap: 12px;
  padding: 14px;
  align-items: stretch;
}
.mana-block, .stat-card, .oracle-btn {
  border-radius: 18px;
  background: rgba(2, 5, 18, .46);
  border: 1px solid rgba(255,255,255,.105);
  box-shadow: inset 0 0 20px rgba(255,255,255,.025);
}
.mana-block { padding: 14px; display: grid; align-content: center; gap: 10px; }
.hud-label-row { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: .85rem; }
.hud-label-row strong { color: var(--text); }
.mana-track {
  position: relative;
  height: 15px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,.075);
  border: 1px solid rgba(255,255,255,.11);
}
.mana-fill {
  width: 100%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff4d6d 0%, #ffd166 38%, #20f3ff 70%, #66ffb3 100%);
  box-shadow: 0 0 18px rgba(32, 243, 255, .56);
  transition: width .45s ease, filter .35s ease;
}
.mana-fill.low { filter: hue-rotate(135deg) saturate(1.8); animation: dangerPulse .7s ease-in-out infinite alternate; }
.mana-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.38), transparent);
  transform: translateX(-100%);
  animation: manaSweep 2.5s linear infinite;
}
.stat-card { display: grid; place-items: center; padding: 10px 8px; text-align: center; }
.stat-card span { color: var(--muted); font-size: .78rem; font-weight: 800; }
.stat-card strong { margin-top: 3px; font-size: clamp(1.25rem, 2vw, 1.75rem); line-height: 1; }
.combo-card strong { color: var(--gold); text-shadow: 0 0 18px rgba(255, 209, 102, .42); }
.combo-pop { animation: comboPop .42s ease; }

.oracle-btn {
  position: relative;
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 0 10px;
  align-items: center;
  padding: 9px 12px;
  background:
    radial-gradient(circle at 25% 40%, rgba(255, 43, 214, .2), transparent 38%),
    rgba(2, 5, 18, .52);
  text-align: left;
}
.oracle-ring {
  grid-row: 1 / 3;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: conic-gradient(var(--cyan) calc(var(--cool, 0) * 1%), rgba(255,255,255,.12) 0);
  box-shadow: 0 0 20px rgba(32, 243, 255, .25);
  position: relative;
}
.oracle-ring::after {
  content: "◉";
  position: absolute;
  inset: 5px;
  display: grid;
  place-items: center;
  border-radius: inherit;
  color: var(--gold);
  background: #070719;
  text-shadow: 0 0 13px rgba(255, 209, 102, .8);
}
.oracle-title { font-weight: 950; }
.oracle-btn small { color: var(--muted); }
.oracle-btn.ready {
  border-color: rgba(255, 209, 102, .55);
  box-shadow: 0 0 24px rgba(255, 209, 102, .16), inset 0 0 20px rgba(255, 209, 102, .07);
  animation: oracleReady 1.4s ease-in-out infinite alternate;
}

.board-wrap { padding: clamp(14px, 2vw, 22px); overflow: hidden; min-height: 500px; }
.ritual-line {
  position: absolute;
  left: 6%;
  right: 6%;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(32,243,255,.8), rgba(255,43,214,.8), transparent);
  box-shadow: 0 0 20px rgba(32,243,255,.45);
}
.board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}
.board-header h2 { margin: 0; font-size: clamp(1.1rem, 2vw, 1.65rem); }

.board {
  --cols: 4;
  display: grid;
  grid-template-columns: repeat(var(--cols), minmax(74px, var(--card-w)));
  justify-content: center;
  gap: clamp(10px, 1.5vw, 16px);
  perspective: 1100px;
  min-height: 340px;
}
.board.idle {
  place-items: center;
}
.board.idle::before {
  content: "請啟動魂契，牌陣將在此展開";
  display: grid;
  place-items: center;
  min-height: 320px;
  width: min(560px, 90vw);
  border-radius: 28px;
  color: rgba(238, 247, 255, .7);
  border: 1px dashed rgba(32, 243, 255, .28);
  background: rgba(255,255,255,.04);
  text-align: center;
}

.card {
  position: relative;
  width: min(var(--card-w), 20vw);
  aspect-ratio: 0.727;
  min-width: 72px;
  border: 0;
  padding: 0;
  background: transparent;
  transform-style: preserve-3d;
  outline: none;
  isolation: isolate;
}
.card:focus-visible .card-inner { box-shadow: 0 0 0 3px rgba(255,255,255,.86), 0 0 26px rgba(32, 243, 255, .5); }
.card-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform .62s cubic-bezier(.2,.85,.24,1.14), filter .25s ease;
}
.card.is-flipped .card-inner,
.card.is-matched .card-inner,
.card.is-oracle .card-inner { transform: rotateY(180deg); }
.card.wrong .card-inner { animation: cardReject .48s ease; }
.card.is-matched { pointer-events: none; }
.card.is-matched .card-inner { animation: matchedFloat .86s ease forwards; }
.card-face {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: 18px;
  overflow: hidden;
  backface-visibility: hidden;
  border: 1px solid rgba(255,255,255,.18);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.23),
    inset 0 -30px 60px rgba(0,0,0,.24),
    0 8px 28px rgba(0,0,0,.32);
}
.card-back {
  background:
    radial-gradient(circle at 50% 18%, rgba(255,255,255,.22), transparent 14%),
    radial-gradient(circle at 30% 28%, rgba(255,43,214,.3), transparent 30%),
    radial-gradient(circle at 72% 78%, rgba(32,243,255,.24), transparent 35%),
    linear-gradient(145deg, rgba(22, 31, 69, .78), rgba(5, 9, 28, .82));
  backdrop-filter: blur(15px);
}
.card-back::before {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 13px;
  border: 1px solid rgba(32, 243, 255, .46);
  box-shadow: inset 0 0 22px rgba(255, 43, 214, .22), 0 0 18px rgba(32, 243, 255, .23);
}
.card-back::after {
  content: "✦\A TAROT\A ECHOES";
  white-space: pre;
  display: grid;
  place-items: center;
  width: 68%;
  height: 68%;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.16);
  color: rgba(238,247,255,.78);
  text-align: center;
  font-size: clamp(.62rem, 1.2vw, .82rem);
  font-weight: 950;
  letter-spacing: .16em;
  text-shadow: 0 0 12px rgba(32, 243, 255, .7);
  background: radial-gradient(circle, rgba(255,255,255,.08), transparent 68%);
  animation: sigilSpin 10s linear infinite;
}
.card-front {
  transform: rotateY(180deg);
  background:
    radial-gradient(circle at 50% 26%, color-mix(in srgb, var(--accent) 34%, transparent), transparent 36%),
    linear-gradient(145deg, rgba(255,255,255,.15), rgba(255,255,255,.035)),
    rgba(8, 12, 29, .82);
  border-color: color-mix(in srgb, var(--accent) 64%, white 10%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.25),
    0 0 24px color-mix(in srgb, var(--accent) 42%, transparent),
    0 8px 30px rgba(0,0,0,.36);
}
.card-front::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 44%, transparent);
  box-shadow: inset 0 0 20px color-mix(in srgb, var(--accent) 18%, transparent);
}
.card-front::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: linear-gradient(115deg, transparent 36%, rgba(255,255,255,.2), transparent 62%);
  transform: translateX(-40%) rotate(8deg);
  animation: cardGleam 4.2s ease-in-out infinite;
}
.symbol {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  gap: 6px;
  text-align: center;
  padding: 8px;
}
.glyph {
  font-size: clamp(2rem, 5.6vw, 4.2rem);
  line-height: 1;
  filter: drop-shadow(0 0 16px color-mix(in srgb, var(--accent) 78%, transparent));
}
.name {
  color: rgba(238, 247, 255, .86);
  font-size: clamp(.62rem, 1.2vw, .82rem);
  font-weight: 950;
  letter-spacing: .12em;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(0,0,0,.5);
}
.card.is-oracle .card-front { animation: oracleReveal .75s ease-in-out infinite alternate; }

.spark, .fragment {
  position: fixed;
  z-index: 50;
  left: 0;
  top: 0;
  pointer-events: none;
  transform: translate(var(--x), var(--y));
}
.spark {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c, var(--cyan));
  box-shadow: 0 0 16px var(--c, var(--cyan));
  animation: sparkFly var(--d, 650ms) ease-out forwards;
}
.fragment {
  width: 12px;
  height: 16px;
  border: 1px solid rgba(255,255,255,.26);
  background: linear-gradient(135deg, rgba(255,255,255,.28), color-mix(in srgb, var(--c, var(--cyan)) 52%, transparent));
  clip-path: polygon(18% 0, 100% 24%, 70% 100%, 0 78%);
  box-shadow: 0 0 15px var(--c, var(--cyan));
  animation: shardBreak var(--d, 780ms) cubic-bezier(.16,.84,.44,1) forwards;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 0, 10, .55);
  backdrop-filter: blur(8px);
  transition: opacity .22s ease, visibility .22s ease;
}
.modal.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.modal-card {
  width: min(540px, 100%);
  padding: clamp(24px, 4vw, 42px);
  text-align: center;
}
.sigil {
  display: inline-grid;
  place-items: center;
  width: 70px;
  height: 70px;
  margin-bottom: 16px;
  border-radius: 50%;
  color: var(--gold);
  border: 1px solid rgba(255, 209, 102, .42);
  background: radial-gradient(circle, rgba(255,209,102,.2), rgba(255,43,214,.08));
  font-size: 2rem;
  text-shadow: 0 0 20px rgba(255, 209, 102, .88);
  animation: sigilSpin 8s linear infinite;
}
.modal-card h2 { margin-bottom: 10px; font-size: clamp(1.7rem, 5vw, 2.55rem); }
.modal-card p { color: var(--muted); line-height: 1.75; }
.modal-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 22px; }

@keyframes gridDrift { to { background-position: 0 46px, 46px 0; } }
@keyframes floatA { 50% { transform: translate(7vw, 5vh) scale(1.08); } }
@keyframes floatB { 50% { transform: translate(-6vw, -4vh) scale(.95); } }
@keyframes manaSweep { to { transform: translateX(100%); } }
@keyframes dangerPulse { from { opacity: .75; } to { opacity: 1; box-shadow: 0 0 24px rgba(255,77,109,.72); } }
@keyframes comboPop { 45% { transform: scale(1.24); filter: brightness(1.35); } }
@keyframes oracleReady { to { box-shadow: 0 0 32px rgba(255, 209, 102, .28), inset 0 0 24px rgba(255, 209, 102, .12); } }
@keyframes sigilSpin { to { transform: rotate(360deg); } }
@keyframes cardGleam { 0%, 50% { transform: translateX(-48%) rotate(8deg); } 72%, 100% { transform: translateX(45%) rotate(8deg); } }
@keyframes oracleReveal { to { filter: brightness(1.24) saturate(1.32); } }
@keyframes cardReject { 10%, 90% { transform: translateX(-3px) rotateZ(-1deg); } 25%, 75% { transform: translateX(5px) rotateZ(1.5deg); } 50% { transform: translateX(-6px) rotateZ(-2deg); } }
@keyframes matchedFloat { 42% { transform: rotateY(180deg) translateY(-8px) scale(1.06); filter: brightness(1.38); } 100% { transform: rotateY(180deg) scale(.92); opacity: .36; filter: saturate(.75); } }
@keyframes screenShake { 10%, 90% { transform: translate3d(-1px, 0, 0); } 20%, 80% { transform: translate3d(2px, 1px, 0); } 30%, 50%, 70% { transform: translate3d(-4px, -1px, 0); } 40%, 60% { transform: translate3d(4px, 1px, 0); } }
@keyframes sparkFly {
  0% { opacity: 1; transform: translate(var(--x), var(--y)) scale(1); }
  100% { opacity: 0; transform: translate(calc(var(--x) + var(--dx)), calc(var(--y) + var(--dy))) scale(.1); }
}
@keyframes shardBreak {
  0% { opacity: 1; transform: translate(var(--x), var(--y)) rotate(0) scale(1); }
  100% { opacity: 0; transform: translate(calc(var(--x) + var(--dx)), calc(var(--y) + var(--dy))) rotate(var(--rot)) scale(.25); }
}

@media (max-width: 1080px) {
  .hero-panel { grid-template-columns: 1fr; }
  .hud { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .mana-block { grid-column: span 2; }
  .oracle-btn { grid-column: span 2; }
}
@media (max-width: 720px) {
  .game-shell { width: min(100% - 18px, 1380px); padding-top: 10px; }
  .control-grid { grid-template-columns: 1fr; }
  .hud { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mana-block, .oracle-btn { grid-column: span 2; }
  .board-header { align-items: flex-start; flex-direction: column; }
  .board { grid-template-columns: repeat(var(--mobile-cols, 3), minmax(64px, 1fr)); }
  .card { width: 100%; min-width: 0; }
  .card-face { border-radius: 14px; }
  h1 { letter-spacing: -0.05em; }
}
@media (max-width: 430px) {
  .hud { grid-template-columns: 1fr 1fr; }
  .board { gap: 8px; }
  .glyph { font-size: 2rem; }
  .name { font-size: .56rem; }
}