/* === ÁLBUM DE CLAVADAS DE MARTINA · ESTILOS EXCLUSIVOS === */

:root {
  --album-bronze: #cd7f32;
  --album-silver: #c0c0c0;
  --album-gold: #ffd700;
  --album-sparkle: rgba(255, 215, 0, 0.4);
  --pack-blue: #1d3557;
  --pack-gold: #ffd700;
}

/* Page Layout */
.album-container {
  max-width: 1100px;
  margin: 2rem auto;
  padding: 0 1.5rem;
}

.album-header {
  text-align: center;
  margin-bottom: 3rem;
  background: white;
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 3px solid var(--gold);
  position: relative;
  overflow: hidden;
}

.album-header::before {
  content: '🔒';
  position: absolute;
  font-size: 8rem;
  opacity: 0.03;
  right: -2rem;
  bottom: -2rem;
  transform: rotate(-15deg);
}

.album-title {
  color: var(--magic-dark);
  font-size: 2.4rem;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.8rem;
}

.album-title span {
  font-size: 2.8rem;
}

.album-subtitle {
  color: var(--rose);
  font-size: 1.1rem;
  font-style: italic;
  font-weight: 600;
}

/* Collector Stats */
.collector-panel {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.stats-card {
  background: white;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: transform 0.3s ease;
  border-bottom: 4px solid var(--magic-blue);
}

.stats-card:hover {
  transform: translateY(-5px);
}

.stats-val {
  font-size: 2.5rem;
  font-weight: 800;
  font-family: 'Nunito', sans-serif;
  color: var(--magic-dark);
}

.stats-lbl {
  font-size: 0.95rem;
  color: var(--ink);
  opacity: 0.8;
  font-weight: 600;
  margin-top: 0.25rem;
}

/* Progress bar */
.progress-container {
  width: 100%;
  background: var(--board-light);
  height: 14px;
  border-radius: 10px;
  margin-top: 0.8rem;
  overflow: hidden;
  position: relative;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--magic-blue), var(--sage));
  width: 0%;
  transition: width 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border-radius: 10px;
}

/* Pack Opening Area */
.pack-zone {
  background: linear-gradient(135deg, var(--pack-blue), var(--magic-dark));
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  color: white;
  box-shadow: var(--shadow-hover);
  margin-bottom: 3rem;
  position: relative;
  overflow: hidden;
  border: 4px solid var(--pack-gold);
}

.pack-zone::after {
  content: '';
  position: absolute;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, var(--album-sparkle) 0%, transparent 70%);
  top: -50px;
  right: -50px;
  pointer-events: none;
}

.pack-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.pack-count {
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--rose);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

/* Foil envelope item styling */
.pack-visual {
  width: 130px;
  height: 190px;
  background: linear-gradient(145deg, #e63946, #b5179e);
  border-radius: 12px;
  box-shadow: 0 15px 35px rgba(0,0,0,0.3), 0 0 15px rgba(255, 215, 0, 0.3);
  position: relative;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  border: 3px solid var(--pack-gold);
  overflow: hidden;
}

.pack-visual::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transform: translateX(-100%);
}

.pack-visual:hover {
  transform: translateY(-8px) scale(1.03) rotate(2deg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4), 0 0 25px rgba(255, 215, 0, 0.5);
}

.pack-visual:hover::before {
  animation: shine-pack 1.5s infinite;
}

@keyframes shine-pack {
  100% { transform: translateX(100%); }
}

.pack-art {
  font-size: 3rem;
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
  animation: wiggle 3s infinite ease-in-out;
}

.pack-title-text {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 0.9rem;
  color: white;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Album Grid */
.album-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
  margin-bottom: 4rem;
}

/* Sticker Card Slot (Locked State) */
.sticker-slot {
  background: white;
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  border: 2px dashed var(--board-dark);
  min-height: 380px;
  justify-content: space-between;
  transition: all 0.3s ease;
}

.sticker-slot.unlocked {
  border: 3px solid var(--gold-light);
  box-shadow: 0 10px 25px rgba(244, 162, 97, 0.15);
  background: linear-gradient(180deg, white 0%, #fffcf5 100%);
}

.sticker-slot:not(.unlocked):hover {
  border-color: var(--magic-blue);
  transform: translateY(-2px);
}

/* Sticker frame container */
.sticker-frame {
  width: 100%;
  aspect-ratio: 0.75;
  background: #f8f9fa;
  border-radius: 12px;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(0,0,0,0.06);
  margin-bottom: 1.2rem;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.04);
}

/* Gray scale silhouette */
.silhouette {
  font-size: 6rem;
  opacity: 0.15;
  filter: grayscale(100%);
  user-select: none;
}

/* Actual Sticker element styling */
.sticker {
  width: 90%;
  height: 90%;
  border-radius: 8px;
  background: var(--warm-white);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1), 0 0 0 1px rgba(0,0,0,0.05);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.3s ease;
  transform: rotate(var(--rotation, 0deg));
}

.sticker:hover {
  transform: scale(1.05) rotate(0deg) !important;
  box-shadow: 0 12px 30px rgba(0,0,0,0.18), 0 0 15px rgba(255, 215, 0, 0.3);
  z-index: 10;
}

/* Glare & Gloss Effect */
.sticker::after {
  content: '';
  position: absolute;
  width: 200%;
  height: 200%;
  background: linear-gradient(135deg, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 50%, rgba(255,255,255,0.4) 100%);
  top: -50%;
  left: -50%;
  transform: rotate(30deg);
  pointer-events: none;
  opacity: 0.6;
  transition: transform 0.5s ease;
}

.sticker:hover::after {
  transform: rotate(30deg) translate(20%, 20%);
}

/* Specific Rarity styles */
.sticker-rarity-normal {
  border-top: 6px solid var(--magic-blue);
}

.sticker-rarity-epic {
  border-top: 6px solid #8e44ad;
  background: linear-gradient(185deg, white 75%, #f6ebff 100%);
}

.sticker-rarity-legendary {
  border: 2px solid var(--pack-gold);
  border-top: 8px solid var(--pack-gold);
  background: linear-gradient(185deg, white 75%, #fffde6 100%);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.15), 0 0 10px rgba(255, 215, 0, 0.1);
}

.sticker-rarity-legendary::before {
  content: '✨';
  position: absolute;
  font-size: 0.8rem;
  top: 4px;
  right: 6px;
  animation: pulse 1.5s infinite alternate;
}

/* Sticker Internal Styles */
.sticker-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  padding-bottom: 0.3rem;
}

.sticker-id {
  font-family: 'Nunito', sans-serif;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--magic-blue);
  background: rgba(42, 111, 151, 0.1);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
}

.sticker-badge {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: #8e44ad;
}

.sticker-rarity-legendary .sticker-badge {
  color: #d4af37;
}

.sticker-art {
  font-size: 4rem;
  text-align: center;
  margin: 0.8rem 0;
  filter: drop-shadow(0 3px 6px rgba(0,0,0,0.12));
}

.sticker-title {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--magic-dark);
  text-align: center;
}

.sticker-slot-title {
  font-family: 'Nunito', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--magic-dark);
  margin-top: 0.5rem;
}

.sticker-slot-desc {
  font-size: 0.85rem;
  color: var(--ink);
  opacity: 0.7;
  text-align: center;
  margin-top: 0.3rem;
  margin-bottom: 0.8rem;
}

.sticker-status-btn {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  padding: 0.4rem 1.2rem;
  font-size: 0.85rem;
  border-radius: 50px;
  background: var(--board-dark);
  color: white;
  width: 90%;
  border: none;
  cursor: default;
  transition: all 0.2s ease;
  text-align: center;
}

.unlocked .sticker-status-btn {
  background: var(--magic-blue);
  cursor: pointer;
}

.unlocked .sticker-status-btn:hover {
  background: var(--magic-dark);
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* --- OVERLAY MODALS (Full Screen Pack Opening & Details) --- */
.album-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(1, 42, 74, 0.85);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  overflow-y: auto; /* Enable outer scrolling if the whole layout is tall */
  padding: 1rem;
  box-sizing: border-box;
}

.album-modal.active {
  opacity: 1;
  pointer-events: all;
}

.modal-card {
  background: white;
  border-radius: var(--radius);
  max-width: 650px;
  width: 95%;
  padding: 2.5rem;
  position: relative;
  box-shadow: 0 25px 50px rgba(0,0,0,0.3);
  transform: translateY(30px);
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 4px solid var(--gold);
  max-height: 90vh; /* Do not exceed viewport height */
  overflow-y: auto; /* Scrollable inside the card */
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
}

/* Custom premium scrollbar inside modal card */
.modal-card::-webkit-scrollbar {
  width: 8px;
}
.modal-card::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}
.modal-card::-webkit-scrollbar-thumb {
  background: var(--magic-blue);
  border-radius: 10px;
}
.modal-card::-webkit-scrollbar-thumb:hover {
  background: var(--magic-dark);
}

.album-modal.active .modal-card {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  font-size: 2rem;
  cursor: pointer;
  color: var(--board-dark);
  transition: color 0.2s ease;
  line-height: 1;
}

.modal-close:hover {
  color: var(--rose);
}

/* Detail Modal Styles */
.detail-header {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
  border-bottom: 2px solid var(--board-light);
  padding-bottom: 1rem;
}

.detail-icon {
  font-size: 3.5rem;
  filter: drop-shadow(0 3px 6px rgba(0,0,0,0.15));
}

.detail-meta {
  display: flex;
  flex-direction: column;
}

.detail-rarity {
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--rose);
}

.detail-title {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--magic-dark);
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: center;
}

@media(min-width: 550px) {
  .detail-grid {
    grid-template-columns: 240px 1fr;
  }
}

.detail-board-container {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 3px solid var(--magic-dark);
}

.detail-text {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.detail-quote {
  font-style: italic;
  font-weight: 600;
  color: var(--magic-blue);
  border-left: 4px solid var(--rose);
  padding-left: 0.8rem;
  margin: 0.5rem 0;
  font-size: 0.95rem;
}

.detail-info {
  font-size: 0.95rem;
  color: var(--ink);
  line-height: 1.6;
}

/* --- DECK & PACK OPENING ANIMATIONS --- */
.pack-open-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  position: relative;
}

/* Foil Envelope that Rips Open */
.foil-wrapper {
  width: 200px;
  height: 290px;
  position: relative;
  perspective: 1000px;
  cursor: pointer;
  transition: height 0.8s cubic-bezier(0.85, 0, 0.15, 1), opacity 0.8s ease, margin 0.8s ease;
}

.foil-wrapper.ripped {
  height: 0 !important;
  opacity: 0;
  pointer-events: none;
  margin: 0 !important;
}

.foil-pack-half {
  position: absolute;
  width: 100%;
  height: 50%;
  left: 0;
  background: linear-gradient(135deg, #b5179e, #7209b7);
  border: 4px solid var(--pack-gold);
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  z-index: 50;
  transition: transform 0.8s cubic-bezier(0.85, 0, 0.15, 1);
}

.foil-top {
  top: 0;
  border-bottom: none;
  border-radius: 12px 12px 0 0;
  align-items: flex-end;
  transform-origin: top center;
}

.foil-bottom {
  bottom: 0;
  border-top: none;
  border-radius: 0 0 12px 12px;
  align-items: flex-start;
  transform-origin: bottom center;
}

.foil-art {
  font-size: 4rem;
  filter: drop-shadow(0 4px 10px rgba(0,0,0,0.3));
}

.foil-top .foil-art {
  transform: translateY(2rem);
}

.foil-bottom .foil-art {
  transform: translateY(-2rem);
}

/* Ripped Animation State */
.foil-wrapper.ripped .foil-top {
  transform: translateY(-150px) rotateX(-90deg);
  opacity: 0;
}

.foil-wrapper.ripped .foil-bottom {
  transform: translateY(150px) rotateX(90deg);
  opacity: 0;
}

/* Foil crimped edges */
.foil-crimp {
  position: absolute;
  left: 0;
  width: 100%;
  height: 10px;
  background: repeating-linear-gradient(90deg, #b5179e, #b5179e 2px, #ffd700 2px, #ffd700 4px);
  z-index: 60;
}

.foil-top .foil-crimp { top: 0; }
.foil-bottom .foil-crimp { bottom: 0; }

/* The Cards Deck that emerges */
.cards-deck {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap; /* Let cards wrap gracefully on narrow/short screens */
  gap: 1.2rem;
  width: 100%;
  margin-top: 1.5rem;
  opacity: 0;
  transform: scale(0.8);
  pointer-events: none;
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.foil-wrapper.ripped ~ .cards-deck {
  opacity: 1;
  transform: scale(1);
  pointer-events: all;
  margin-top: 1rem;
}

/* 3D Flip Card */
.flip-card {
  background-color: transparent;
  width: 120px;
  height: 170px;
  perspective: 1000px;
  cursor: pointer;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  text-align: center;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
  box-shadow: 0 8px 16px rgba(0,0,0,0.15);
  border-radius: 8px;
}

.flip-card.flipped .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front, .flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

/* Card Back */
.flip-card-front {
  background: linear-gradient(135deg, var(--magic-blue) 0%, var(--magic-dark) 100%);
  color: white;
  border: 3px solid var(--gold-light);
}

.flip-card-front::after {
  content: '♕';
  font-size: 3rem;
  opacity: 0.2;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}

.card-hint {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.9;
  position: absolute;
  bottom: 10px;
  color: var(--gold-light);
}

/* Card Front (Actual Sticker) */
.flip-card-back {
  background-color: white;
  color: black;
  transform: rotateY(180deg);
  border: 1px solid rgba(0,0,0,0.06);
  padding: 0.5rem;
}

.flip-card-back .sticker {
  width: 100%;
  height: 100%;
  padding: 0.5rem;
  box-shadow: none;
  --rotation: 0deg !important;
}

.flip-card-back .sticker-art {
  font-size: 2.8rem;
  margin: 0.2rem 0;
}

.flip-card-back .sticker-title {
  font-size: 0.85rem;
}

/* Instructions */
.reveal-instruction {
  font-weight: 700;
  color: var(--gold-light);
  margin-top: 1rem;
  font-size: 1.1rem;
  text-align: center;
  transition: opacity 0.3s ease;
}

.paste-action-btn {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  background: var(--rose);
  color: white;
  padding: 0.8rem 2rem;
  border-radius: 50px;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(231, 111, 81, 0.2);
  margin-top: 1.5rem;
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  opacity: 0;
  transform: scale(0.9);
  pointer-events: none;
  display: none;
}

.paste-action-btn.active {
  display: block;
  opacity: 1;
  transform: scale(1);
  pointer-events: all;
  animation: pulse 1s infinite alternate;
}

.paste-action-btn:hover {
  background: #d45d3f;
  transform: scale(1.05);
  box-shadow: 0 12px 25px rgba(231, 111, 81, 0.3);
}

/* Daily Trivia Riddle Section */
.trivia-section {
  background: white;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 3rem;
  border-left: 6px solid var(--sage);
}

.trivia-header {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 1rem;
}

.trivia-title {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--magic-dark);
}

.trivia-question {
  font-weight: 600;
  margin-bottom: 1.2rem;
  font-size: 1.05rem;
}

.trivia-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

@media(min-width: 600px) {
  .trivia-options {
    grid-template-columns: 1fr 1fr;
  }
}

.trivia-btn {
  font-family: 'Quicksand', sans-serif;
  font-weight: 600;
  background: #f8f9fa;
  border: 2px solid var(--board-light);
  border-radius: 12px;
  padding: 0.8rem 1.2rem;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: left;
  transition: all 0.2s ease;
}

.trivia-btn:hover:not(:disabled) {
  background: rgba(42, 157, 143, 0.08);
  border-color: var(--sage);
  transform: translateX(3px);
}

.trivia-btn.correct {
  background: #d4edda;
  border-color: #28a745;
  color: #155724;
}

.trivia-btn.incorrect {
  background: #f8d7da;
  border-color: #dc3545;
  color: #721c24;
}

/* Congratulations Banner */
.congrats-banner {
  background: linear-gradient(135deg, #fff275, #ff8c00);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  color: var(--magic-dark);
  box-shadow: 0 15px 35px rgba(255, 140, 0, 0.2);
  margin-bottom: 3.5rem;
  display: none;
  animation: scale-up 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  border: 4px solid var(--pack-gold);
}

.congrats-banner.active {
  display: block;
}

.congrats-icon {
  font-size: 4.5rem;
  margin-bottom: 1rem;
  animation: bounce 2s infinite;
}

.congrats-title {
  font-family: 'Nunito', sans-serif;
  font-weight: 800;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

.congrats-desc {
  font-weight: 600;
  margin-bottom: 1.5rem;
}

/* --- ANIMATIONS --- */
@keyframes wiggle {
  0%, 100% { transform: rotate(-3deg); }
  50% { transform: rotate(3deg); }
}

@keyframes wiggle-intense {
  0%, 100% { transform: rotate(-8deg) scale(1); }
  50% { transform: rotate(8deg) scale(1.05); }
}

@keyframes wiggle-subtle {
  0%, 100% { transform: rotate(-1deg); }
  50% { transform: rotate(1deg); }
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(231, 111, 81, 0.4); }
  100% { transform: scale(1.03); box-shadow: 0 0 15px 5px rgba(231, 111, 81, 0.1); }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes scale-up {
  0% { transform: scale(0.8); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.wiggle-action {
  animation: wiggle-intense 0.3s infinite alternate;
}

/* Dynamic chessboard rendering */
.album-chess-board {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  grid-template-rows: repeat(8, minmax(0, 1fr));
  width: 100%;
  height: 100%;
  background: var(--magic-dark);
}

.album-chess-square {
  aspect-ratio: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.3rem;
  position: relative;
  min-width: 0;
  min-height: 0;
  box-sizing: border-box;
}

.album-chess-piece {
  z-index: 5;
  user-select: none;
  font-weight: normal;
  /* Simulating Segoe UI baseline adjustment for details board */
  transform: translateY(-5%);
}

.album-chess-square.light {
  background-color: var(--board-light);
}

.album-chess-square.dark {
  background-color: var(--board-dark);
}

.album-chess-square.highlight-pin {
  background-color: rgba(231, 111, 81, 0.4) !important;
}

.album-chess-square.highlight-attacker {
  background-color: rgba(42, 111, 151, 0.4) !important;
}

/* === CATEGORY TAB SELECTORS === */
.album-tabs {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin: 2rem auto;
  flex-wrap: wrap;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  max-width: fit-content;
  box-shadow: var(--shadow);
}

.tab-btn {
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.6rem 1.5rem;
  border-radius: 50px;
  border: none;
  background: transparent;
  color: var(--magic-dark);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.8);
  transform: translateY(-2px);
}

.tab-btn.active {
  background: var(--magic-blue);
  color: white;
  box-shadow: 0 4px 10px rgba(42, 111, 151, 0.3);
}

@media (max-width: 600px) {
  .album-tabs {
    border-radius: 20px;
    padding: 0.4rem;
    gap: 0.4rem;
    width: 100%;
    justify-content: space-around;
  }
  .tab-btn {
    font-size: 0.8rem;
    padding: 0.5rem 0.8rem;
  }
}

/* === RESPONSIVE LAYOUTS FOR SMALL SCREENS & SHORT VIEWPORTS === */
@media (max-width: 600px), (max-height: 720px) {
  .modal-card {
    padding: 1.5rem;
    width: 95%;
  }
  
  .modal-card h2 {
    font-size: 1.4rem !important;
    margin-bottom: 1rem !important;
  }
  
  .foil-wrapper {
    width: 140px;
    height: 200px;
    margin: 0 auto;
  }
  
  .foil-art {
    font-size: 2.8rem;
  }
  
  .foil-top .foil-art {
    transform: translateY(1.2rem);
  }
  
  .foil-bottom .foil-art {
    transform: translateY(-1.2rem);
  }
  
  .flip-card {
    width: 90px;
    height: 130px;
  }
  
  .flip-card-front::after {
    font-size: 1.8rem;
  }
  
  .flip-card-back {
    padding: 0.25rem;
  }
  
  .flip-card-back .sticker-art {
    font-size: 2rem;
    margin: 0.1rem 0;
  }
  
  .flip-card-back .sticker-title {
    font-size: 0.7rem;
  }
  
  .flip-card-back .sticker-id {
    font-size: 0.65rem;
    padding: 0.05rem 0.25rem;
  }
  
  .reveal-instruction {
    font-size: 0.9rem;
    margin-top: 0.5rem;
  }
  
  .paste-action-btn {
    font-size: 0.95rem;
    padding: 0.6rem 1.5rem;
  }
}