:root {
  color-scheme: dark;
  --bg: #030817;
  --ink: #e8f7ff;
  --muted: #8fb6d6;
  --line: rgba(89, 213, 255, 0.22);
  --panel: rgba(7, 20, 45, 0.58);
  --panel-strong: rgba(29, 73, 132, 0.62);
  --accent: #25d9ff;
  --accent-dark: #10aee4;
  --purple: #a855f7;
  --purple-soft: rgba(168, 85, 247, 0.26);
  --danger: #ff6b9a;
  --owned: rgba(37, 217, 255, 0.16);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(37, 217, 255, 0.24), transparent 32%),
    radial-gradient(circle at 84% 12%, rgba(168, 85, 247, 0.22), transparent 34%),
    radial-gradient(circle at 50% 92%, rgba(16, 174, 228, 0.14), transparent 36%),
    linear-gradient(90deg, rgba(37, 217, 255, 0.06) 1px, transparent 1px),
    linear-gradient(rgba(168, 85, 247, 0.05) 1px, transparent 1px),
    var(--bg);
  background-size: 28px 28px;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

input,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 12px;
}

input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  box-shadow: 0 0 20px rgba(37, 217, 255, 0.22);
}

label span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.app-shell {
  width: min(1180px, calc(100% - 24px));
  margin: 0 auto;
  padding: 24px 0;
}

.hero,
.collection-summary,
.filters,
.gallery-wrap {
  position: relative;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(37, 217, 255, 0.035)),
    var(--panel);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
  border: 1px solid var(--line);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.13);
}

.hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  border-radius: 8px 8px 0 0;
  padding: 22px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  text-shadow: 0 0 16px rgba(37, 217, 255, 0.55);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero-title {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.25rem);
  line-height: 1;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  font-size: clamp(1.9rem, 3vw, 3.2rem);
  line-height: 1.03;
  text-shadow: 0 0 28px rgba(37, 217, 255, 0.18);
}

h2 {
  font-size: 1rem;
}

.hero-actions,
.summary-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.secondary-button {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  padding: 10px 14px;
  font-weight: 700;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 0 18px rgba(37, 217, 255, 0.08);
}

.secondary-button:hover {
  border-color: var(--accent);
  box-shadow: 0 0 22px rgba(37, 217, 255, 0.24), inset 0 1px 0 rgba(255, 255, 255, 0.16);
}

.danger-text {
  color: var(--danger);
}

.collection-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(120px, 1fr));
  gap: 12px;
  border-top: 0;
  padding: 18px;
}

.stat-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(145deg, rgba(37, 217, 255, 0.1), rgba(168, 85, 247, 0.08)), var(--panel);
  padding: 14px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.stat-card strong {
  display: block;
  margin-top: 6px;
  font-size: 1.9rem;
  line-height: 1;
  color: var(--accent);
  text-shadow: 0 0 18px rgba(37, 217, 255, 0.45);
}

.filters {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(150px, 260px);
  gap: 14px;
  align-items: end;
  border-top: 0;
  padding: 18px;
}

.checkline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
}

.checkline input {
  width: 18px;
  height: 18px;
}

.checkline span {
  margin: 0;
  color: var(--ink);
}

.gallery-wrap {
  border-top: 0;
  border-radius: 0 0 8px 8px;
  padding: 18px;
}

.gallery-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.count-pill {
  border-radius: 999px;
  background: var(--panel-strong);
  color: var(--ink);
  padding: 5px 10px;
  font-size: 0.8rem;
  font-weight: 700;
}

.sprite-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 14px;
}

.sprite-card {
  position: relative;
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 0;
  min-height: 292px;
  border: 0;
  border-radius: 22px;
  background: var(--panel);
  color: var(--ink);
  padding: 0;
  overflow: hidden;
  text-align: left;
  backdrop-filter: blur(16px) saturate(135%);
  -webkit-backdrop-filter: blur(16px) saturate(135%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 10px 30px rgba(0, 0, 0, 0.22);
}

.sprite-card::after {
  content: attr(data-state);
  position: absolute;
  top: 12px;
  right: 12px;
  border-radius: 999px;
  background: rgba(3, 8, 23, 0.68);
  color: var(--ink);
  padding: 6px 10px;
  font-size: 0.76rem;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(37, 217, 255, 0.18);
}

.chance-bubble {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  border-radius: 999px;
  background: rgba(3, 8, 23, 0.68);
  color: var(--ink);
  padding: 6px 10px;
  font-size: 0.76rem;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(37, 217, 255, 0.18);
}

.sprite-main {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
}

.sprite-card:hover {
  box-shadow: 0 0 24px rgba(37, 217, 255, 0.22), inset 0 1px 0 rgba(255, 255, 255, 0.14);
}

.sprite-card.owned {
  background: linear-gradient(145deg, rgba(37, 217, 255, 0.2), rgba(168, 85, 247, 0.14)), var(--panel);
  box-shadow: 0 0 28px rgba(37, 217, 255, 0.24), 0 0 42px rgba(168, 85, 247, 0.13);
}

.sprite-art {
  display: grid;
  width: 100%;
  aspect-ratio: 1;
  min-height: 0;
  border: 0;
  border-radius: 0;
  place-items: center;
  overflow: hidden;
  background:
    linear-gradient(45deg, rgba(37, 217, 255, 0.15) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(37, 217, 255, 0.15) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(168, 85, 247, 0.15) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(168, 85, 247, 0.15) 75%),
    var(--panel);
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
  background-size: 16px 16px;
}

.card-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 0 8px 8px;
}

.mastery-box,
.lost-box {
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 4px;
  min-height: 52px;
  width: 100%;
  min-width: 0;
  border: 1px solid rgba(255, 215, 0, 0.3);
  border-radius: 16px;
  background: rgba(255, 215, 0, 0.1);
  color: rgba(255, 230, 142, 0.72);
  overflow: hidden;
  padding: 6px 3px;
  font-size: 0.56rem;
  font-weight: 700;
  text-align: center;
  text-transform: uppercase;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.09), 0 0 18px rgba(255, 215, 0, 0.08);
}

.mastery-box > span:last-child,
.lost-box > span:last-child {
  display: block;
  max-width: 100%;
  overflow: hidden;
  text-overflow: clip;
  white-space: nowrap;
}

.mastery-box:disabled,
.lost-box:disabled {
  cursor: not-allowed;
  opacity: 0.42;
  filter: grayscale(0.45);
}

.mastery-box:hover,
.lost-box:hover {
  border-color: rgba(255, 215, 0, 0.72);
  color: #ffe88a;
  box-shadow: 0 0 22px rgba(255, 215, 0, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.13);
}

.quantity-control {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 4px;
  min-height: 52px;
  width: 100%;
  min-width: 0;
}

.quantity-row {
  display: grid;
  grid-template-columns: 16px 16px 16px;
  align-items: center;
  gap: 4px;
  justify-content: center;
}

.quantity-control button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 18px;
  border: 1px solid rgba(255, 215, 0, 0.32);
  border-radius: 6px;
  background: rgba(255, 215, 0, 0.1);
  color: rgba(255, 230, 142, 0.78);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  line-height: 1;
  padding: 0;
  box-shadow: 0 0 14px rgba(255, 215, 0, 0.08);
}

.quantity-control button:hover {
  border-color: #ffd700;
  color: #fff4b8;
  box-shadow: 0 0 18px rgba(255, 215, 0, 0.24);
}

.quantity-control strong {
  font-size: 0.76rem;
  color: #ffe88a;
  text-align: center;
  text-shadow: 0 0 14px rgba(255, 215, 0, 0.34);
}

.level-label {
  color: rgba(255, 230, 142, 0.72);
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
}

.lost-box {
  border-color: rgba(190, 201, 216, 0.28);
  background: rgba(190, 201, 216, 0.1);
  color: rgba(221, 230, 242, 0.7);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 0 18px rgba(190, 201, 216, 0.08);
}

.lost-box:hover {
  border-color: rgba(221, 230, 242, 0.66);
  color: #f1f5fb;
  box-shadow: 0 0 20px rgba(190, 201, 216, 0.18), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.sprite-card.lost .lost-box {
  border-color: #aeb8c6;
  background: linear-gradient(145deg, rgba(185, 194, 207, 0.52), rgba(98, 110, 130, 0.36));
  color: #f4f7fb;
  box-shadow: 0 0 22px rgba(184, 193, 207, 0.34), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.ghost-icon {
  position: relative;
  display: block;
  width: 18px;
  height: 21px;
  border-radius: 10px 10px 5px 5px;
  background: currentColor;
}

.ghost-icon::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 4px;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #03111f;
  box-shadow: 7px 0 0 #03111f;
}

.ghost-icon::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 5px;
  background:
    radial-gradient(circle at 4px 0, transparent 4px, currentColor 4px),
    radial-gradient(circle at 9px 0, transparent 4px, currentColor 4px),
    radial-gradient(circle at 14px 0, transparent 4px, currentColor 4px);
}

.sprite-card.mastered .mastery-box {
  border-color: #ffd700;
  background: linear-gradient(145deg, rgba(255, 215, 0, 0.42), rgba(234, 171, 0, 0.24));
  color: #fff4b8;
  box-shadow: 0 0 26px rgba(255, 215, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.crown {
  position: relative;
  display: block;
  width: 24px;
  height: 15px;
  border-bottom: 5px solid currentColor;
}

.crown span {
  position: absolute;
  bottom: 5px;
  width: 0;
  height: 0;
  border-right: 4px solid transparent;
  border-bottom: 9px solid currentColor;
  border-left: 4px solid transparent;
}

.crown span:nth-child(1) {
  left: 1px;
}

.crown span:nth-child(2) {
  left: 7px;
  border-right-width: 5px;
  border-bottom-width: 12px;
  border-left-width: 5px;
}

.crown span:nth-child(3) {
  right: 1px;
}

.sprite-art img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

.sprite-art span {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  color: var(--accent);
  font-size: 1.35rem;
  font-weight: 700;
  text-shadow: 0 0 16px rgba(37, 217, 255, 0.5);
}

.sprite-card-copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-width: 0;
  border-top: 1px solid rgba(89, 213, 255, 0.18);
  background: rgba(3, 8, 23, 0.54);
  margin-bottom: 8px;
  padding: 10px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.sprite-card-copy strong {
  display: block;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.9rem;
}

.empty-state {
  color: var(--muted);
}

.have-badge {
  flex: 0 0 auto;
  justify-self: start;
  border-radius: 999px;
  background: var(--panel-strong);
  color: #03111f;
  padding: 4px 8px;
  font-size: 0.68rem;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(37, 217, 255, 0.16);
}

.rarity-rare {
  background: #49acf6;
}

.rarity-epic {
  background: #b15be3;
  color: #fff;
}

.rarity-legendary {
  background: #eaab00;
}

.rarity-mythic {
  background: #ffd700;
}

.sprite-card.owned::after {
  background: var(--accent);
  color: #03111f;
  box-shadow: 0 0 18px rgba(37, 217, 255, 0.42);
}

.empty-state {
  margin: 18px 0 0;
  line-height: 1.45;
}

@media (max-width: 820px) {
  .hero,
  .filters {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
  }

  .collection-summary {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .sprite-gallery {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}