/* memo.css — Ploom Aura memory */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

@font-face {
  font-family: "Inter";
  src: url("../fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --btn-grad1: #5795c0;
  --btn-grad2: #1a518a;
  --card-radius: max(16px, 1.9vh);
  --card-glow: rgba(170, 230, 255, 0.9);
}

html, body {
  width: 100%;
  height: 100%;
  min-height: 100%;
  overflow: hidden;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}

body {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
}

.kiosk {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: #000;
}

.screen {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: none;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  overflow: hidden;
}
.screen.active { display: flex; }

#gameBoard {
  padding: 2.4vh 4.5% 2.2vh;
  background-color: #000;
  background-image: url("../img/board-bg.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}

#startScreen {
  background-color: #000;
  background-image: url("../img/start-bg.png");
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  align-items: center;
  justify-content: center;
}

.start-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4vh;
}

.start-logo {
  height: max(48px, 8vh);
  width: auto;
  object-fit: contain;
}

.start-title {
  font-size: max(24px, 4.5vh);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-shadow: 0 2px 14px rgba(0, 0, 0, 0.6);
}

.btn-start {
  padding: max(14px, 2.2vh) max(48px, 8vw);
  font-size: max(16px, 2.4vh);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-grad1), var(--btn-grad2));
  border: none;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 8px 30px rgba(74, 140, 192, 0.5);
  transition: transform 0.15s;
}
.btn-start:hover { transform: translateY(-2px) scale(1.03); }

.board-top {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35vh;
  width: 100%;
  padding: 0.4vh 0 1.2vh;
}

.game-title {
  font-size: max(11px, 1.45vh);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.82;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.55);
}

.board-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: max(6px, 0.9vh);
}

.board-timer {
  font-size: max(20px, 2.8vh);
  opacity: 0.9;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.6);
}

.match-counter {
  display: flex;
  align-items: center;
  padding: max(3px, 0.45vmin) max(10px, 1.2vmin);
  background: rgba(74, 140, 192, 0.28);
  border-radius: 20px;
  border: 1.5px solid #7ec4ef;
  box-shadow: 0 0 12px rgba(126, 196, 239, 0.35);
  font-size: max(10px, 1.3vh);
  font-weight: 600;
}

.board-panel {
  position: relative;
  z-index: 1;
  flex: 0 0 auto;
  width: 76%;
  margin: auto;
  min-height: 0;
  padding: 4.2%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
}

.card-grid {
  display: grid;
  gap: max(5px, 0.85vh);
  width: auto;
  height: auto;
  align-content: center;
  justify-content: center;
  overflow: visible;
  padding: 2px;
}

.card {
  position: relative;
  width: 100%;
  height: 100%;
  perspective: 1000px;
  -webkit-perspective: 1000px;
  cursor: pointer;
  background: transparent;
  border-radius: var(--card-radius);
  transform: translateZ(0);
  overflow: visible;
  box-shadow:
    0 0 8px 2px var(--card-glow),
    0 0 18px 7px rgba(120, 205, 255, 0.55),
    0 0 34px 14px rgba(70, 165, 240, 0.28);
}
.card:hover:not(.flipped):not(.matched) { transform: translateZ(0) scale(1.03); }
.card.matched { pointer-events: none; }
.card.matched .card-inner { transform: rotateY(180deg); }

.card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: var(--card-radius);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
}
.card.flipped .card-inner { transform: rotateY(180deg); }

.card-face,
.card-back-side {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--card-radius);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 38% 42%, #163a66 0%, #071422 72%);
  box-shadow: inset 0 0 0 1px rgba(180, 220, 255, 0.22);
  transition: opacity 0.01s linear 0.22s, visibility 0s linear 0.22s;
}

.card-back-side {
  transform: rotateY(0deg);
  -webkit-transform: rotateY(0deg);
}
.card-face {
  transform: rotateY(180deg);
  -webkit-transform: rotateY(180deg);
  opacity: 0;
  visibility: hidden;
}
.card.flipped .card-face,
.card.matched .card-face {
  opacity: 1;
  visibility: visible;
}
.card.flipped .card-back-side,
.card.matched .card-back-side {
  opacity: 0;
  visibility: hidden;
}

.card-back-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.card-face-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.btn-new-game {
  position: absolute;
  bottom: 2.2%;
  right: 3%;
  width: clamp(44px, 5.5vh, 64px);
  height: clamp(44px, 5.5vh, 64px);
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: clamp(16px, 2.5vmin, 24px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 100;
}
.btn-new-game:hover { background: rgba(255,255,255,0.22); transform: rotate(180deg); }

.btn-home-board {
  position: absolute;
  bottom: 2.2%;
  left: 3%;
  width: clamp(44px, 5.5vh, 64px);
  height: clamp(44px, 5.5vh, 64px);
  border-radius: 50%;
  border: none;
  background: rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: clamp(18px, 2.6vmin, 26px);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  z-index: 100;
}
.btn-home-board:hover { background: rgba(255,255,255,0.22); }

.result-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 900;
  padding: 3vmin;
}
.result-overlay.active { display: flex; }

.result-card {
  background: rgba(30, 30, 50, 0.95);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: clamp(16px, 2.5vmin, 24px);
  padding: clamp(24px, 4vmin, 44px);
  width: min(420px, 88vw);
  text-align: center;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}

.result-icon {
  font-size: clamp(40px, 8vmin, 72px);
  margin-bottom: 1.5vh;
}
.result-title {
  font-size: clamp(20px, 3.5vmin, 32px);
  font-weight: 700;
  margin-bottom: 1vh;
}
.result-time {
  font-size: clamp(28px, 5vmin, 44px);
  font-weight: 800;
  color: #7ec4ef;
  font-variant-numeric: tabular-nums;
}
.result-message {
  font-size: clamp(14px, 2vmin, 18px);
  opacity: 0.8;
  margin: 1.5vh 0;
  line-height: 1.5;
}

.result-btn-group { display: flex; gap: 1.5vmin; margin-top: 2.5vh; }
.btn-again {
  flex: 1;
  padding: clamp(10px, 1.5vmin, 16px);
  font-size: clamp(14px, 2vmin, 18px);
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--btn-grad1), var(--btn-grad2));
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s;
  box-shadow: 0 3px 14px rgba(74, 140, 192, 0.4);
}
.btn-again:hover { transform: translateY(-1px); }

.btn-home {
  flex: 1;
  padding: clamp(10px, 1.5vmin, 16px);
  font-size: clamp(14px, 2vmin, 18px);
  font-weight: 600;
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s;
}
.btn-home:hover { transform: translateY(-1px); background: rgba(255, 255, 255, 0.18); }

.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 910;
  overflow: hidden;
}
.confetti-piece {
  position: absolute;
  top: -10px;
  width: clamp(6px, 1vmin, 10px);
  height: clamp(10px, 1.6vmin, 16px);
  animation: confettiFall 3s ease forwards;
}
@keyframes confettiFall {
  0% { transform: translateY(0) rotate(0); opacity: 1; }
  100% { transform: translateY(100vh) rotate(720deg); opacity: 0; }
}

@media (hover: none) {
  .card:hover:not(.flipped):not(.matched) { transform: translateZ(0); }
}
@media (orientation: landscape) {
  .board-panel {
    width: 75%;
    padding: 2.4%;
  }
  #gameBoard { padding: 1.6vh 3% 1.4vh; }
}