:root {
  --ink: #11111d;
  --paper: #f7f3ed;
  --muted: #6d6873;
  --purple: #7c3aed;
  --lime: #ceff5a;
  --coral: #ff8066;
  --line: rgba(17, 17, 29, 0.14);
  --shadow: 0 18px 0 rgba(17, 17, 29, 0.12);
  --content-width: 1180px;
  --gutter: clamp(1rem, 4vw, 2rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  color: var(--ink);
  background:
    radial-gradient(circle at 7% 3%, rgba(206, 255, 90, 0.72), transparent 25rem),
    radial-gradient(circle at 97% 11%, rgba(124, 58, 237, 0.28), transparent 32rem),
    var(--paper);
  font-family: "Space Grotesk", Arial, sans-serif;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 3px solid var(--purple);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  z-index: 10;
  top: -5rem;
  left: 1rem;
  padding: 0.7rem 1rem;
  color: var(--ink);
  background: var(--lime);
}

.skip-link:focus {
  top: 1rem;
}

.site-header,
.site-footer,
main {
  width: min(var(--content-width), calc(100% - (var(--gutter) * 2)));
  margin: 0 auto;
}

.site-header {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  border-bottom: 1px solid var(--line);
}

.brand {
  display: inline-flex;
  flex: 0 0 auto;
  gap: 0.55rem;
  align-items: center;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.06em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border-radius: 50%;
  color: var(--paper);
  background: var(--ink);
  font-size: 0.9rem;
}

.main-nav {
  display: flex;
  gap: 0.2rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav-link {
  padding: 0.5rem 0.7rem;
  border: 0;
  color: var(--muted);
  background: transparent;
  font-weight: 600;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--lime);
  text-decoration-thickness: 0.4rem;
  text-underline-offset: -0.15rem;
}

.page {
  min-height: calc(100vh - 164px);
  padding: clamp(3.25rem, 8vw, 7rem) 0 clamp(3rem, 6vw, 5rem);
}

.page[hidden] {
  display: none;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 0.8rem;
  color: var(--purple);
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  margin-bottom: 1.25rem;
  font-size: clamp(3.2rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: -0.085em;
  overflow-wrap: anywhere;
}

h1 span {
  color: var(--purple);
}

h1:focus {
  outline: none;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  letter-spacing: -0.05em;
}

.lede {
  max-width: 560px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.55;
}

.battle-panel,
.reveal-panel,
.login-box {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  padding: clamp(1.25rem, 4vw, 2.5rem);
  border: 1px solid var(--ink);
  border-radius: 1.15rem;
  background: #fffdf8;
  box-shadow: var(--shadow);
}

.battle-toolbar {
  display: flex;
  gap: 1.25rem;
  align-items: center;
  justify-content: space-between;
}

.button {
  display: inline-flex;
  gap: 0.6rem;
  align-items: center;
  justify-content: center;
  min-height: 2.8rem;
  padding: 0.8rem 1rem;
  border: 1px solid var(--ink);
  border-radius: 0.35rem;
  color: var(--ink);
  font-weight: 700;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.button-primary {
  background: var(--lime);
  box-shadow: 4px 4px 0 var(--ink);
}

.button:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--ink);
}

.game-battle {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: clamp(0.75rem, 4vw, 3rem);
  align-items: center;
  width: min(100%, 680px);
  margin: 2rem auto 0;
}

.battle-card {
  width: 100%;
  max-width: 260px;
  justify-self: center;
  min-height: 0;
  padding: 0.9rem;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 0.8rem;
  color: #fff;
  background: var(--ink);
  text-align: center;
}

.battle-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 0.45rem;
  background: #363647;
}

.battle-card p {
  display: flex;
  gap: 0.35rem;
  flex-direction: column;
  margin: 0.8rem 0 0;
  font-family: "DM Mono", monospace;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.battle-card strong {
  color: var(--lime);
  font-family: "Space Grotesk", Arial, sans-serif;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
}

.battle-card-empty {
  display: grid;
  min-height: 330px;
  place-items: center;
  background: repeating-linear-gradient(135deg, #21212e 0, #21212e 10px, #272737 10px, #272737 20px);
}

.battle-card .card-placeholder {
  display: block;
  color: #b8b8c1;
  font-family: "Space Grotesk", Arial, sans-serif;
  line-height: 1.4;
  text-transform: none;
}

.versus {
  color: var(--purple);
  font-family: "DM Mono", monospace;
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 500;
}

.game-result {
  max-width: 45rem;
  margin: 1.5rem auto 0;
  color: var(--ink);
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
}

.section-heading {
  display: flex;
  gap: clamp(1.25rem, 4vw, 3rem);
  align-items: flex-end;
  justify-content: space-between;
}

.section-heading h1 {
  margin-bottom: 0;
  font-size: clamp(3rem, 6.5vw, 5.5rem);
}

.pack-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2.5vw, 1.5rem);
  margin-top: clamp(2rem, 5vw, 3.5rem);
}

.pack-card {
  position: relative;
  display: block;
  min-height: 21rem;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 0.85rem;
  color: #fff;
  background: var(--ink);
  aspect-ratio: 3 / 4;
  text-align: left;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.pack-card:hover {
  z-index: 1;
  transform: translateY(-0.5rem) rotate(-1deg);
  box-shadow: 8px 10px 0 var(--ink);
}

.pack-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.pack-meta {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  gap: 0.5rem;
  flex-direction: column;
  padding: 1.1rem;
  background: linear-gradient(transparent, rgba(17, 17, 29, 0.95));
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.pack-meta strong {
  font-family: "Space Grotesk", Arial, sans-serif;
  font-size: 1rem;
  letter-spacing: -0.025em;
  text-transform: none;
}

.crypto-pack {
  background: #1766ff;
}

.cyber-pack {
  background: #d4ff4c;
}

.alien-pack {
  background: #ee5961;
}

.reveal-panel {
  min-height: 240px;
}

.card-reveal-area {
  display: flex;
  gap: 1rem;
  align-items: stretch;
  justify-content: center;
  flex-wrap: wrap;
}

.card {
  flex: 0 1 170px;
  width: 170px;
  padding: 0.6rem;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 0.65rem;
  color: #fff;
  background: var(--ink);
  box-shadow: 4px 4px 0 var(--coral);
  animation: deal-card 450ms ease both;
}

.card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 0.3rem;
}

.card h3 {
  margin: 0.65rem 0 0.3rem;
  color: var(--lime);
  font-size: 1rem;
}

.card-stat-line {
  margin-bottom: 0;
  font-family: "DM Mono", monospace;
  font-size: 0.58rem;
  letter-spacing: -0.04em;
}

.fan-2 {
  animation-delay: 65ms;
}

.fan-3 {
  animation-delay: 130ms;
}

.fan-4 {
  animation-delay: 195ms;
}

.fan-5 {
  animation-delay: 260ms;
}

@keyframes deal-card {
  from {
    opacity: 0;
    transform: translateY(2rem) rotate(-4deg);
  }

  to {
    opacity: 1;
    transform: translateY(0) rotate(0);
  }
}

.store-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1.25rem, 4vw, 3rem);
  width: min(100%, 920px);
  margin: clamp(2rem, 5vw, 3.5rem) auto 0;
}

.store-card {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  min-height: 0;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
}

.pack-button {
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  perspective: 1000px;
}

.pack-button:focus-visible {
  outline: 3px solid var(--purple);
  outline-offset: 4px;
}

.store-card.is-open .pack-reveal {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.store-card:not(.is-open) .pack-reveal {
  opacity: 0;
  transform: translateY(-0.5rem);
  pointer-events: none;
}

.card-3d {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 2 / 3;
  transform-style: preserve-3d;
  transition: transform 600ms ease;
}

.pack-button:hover .card-3d,
.pack-button:focus-within .card-3d {
  transform: translateY(-0.2rem) rotate(-1deg);
}

.card-front,
.card-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1rem;
  overflow: hidden;
  border: 1px solid var(--ink);
  border-radius: 0.85rem;
  color: #fff;
  background: var(--ink);
  backface-visibility: hidden;
}

.card-back {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.card-text {
  position: relative;
  z-index: 1;
  display: block;
  margin-top: auto;
}

.pack-reveal {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.6rem;
  width: 100%;
  min-height: 0;
  opacity: 0;
  transform: translateY(-0.5rem);
  transition: opacity 250ms ease, transform 250ms ease;
  pointer-events: none;
}

.store-card.is-open .pack-reveal {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.pack-reveal-item {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 0.4rem;
  border: 1px solid var(--ink);
  border-radius: 0.65rem;
  background: rgba(23, 26, 45, 0.08);
}

.pack-reveal-item img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: 0.3rem;
}

.pack-reveal-item strong {
  font-size: 0.56rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.card-front img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.92;
}

.card-front p,
.card-front strong {
  position: relative;
  margin-bottom: 0.25rem;
}

.card-front p {
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.card-front strong {
  color: var(--lime);
  font-size: 1.4rem;
}

.card-back {
  justify-content: space-between;
  color: var(--ink);
  background: var(--coral);
  transform: rotateY(180deg);
}

.card-back span {
  font-family: "DM Mono", monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.card-back p {
  margin-bottom: 0;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.06em;
}

.profile-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(19rem, 0.9fr);
  gap: clamp(2rem, 7vw, 6rem);
  align-items: center;
}

.login-box {
  display: grid;
  gap: 0.55rem;
  width: 100%;
  max-width: 420px;
  margin-top: 0;
  justify-self: end;
}

.login-box label {
  font-weight: 700;
}

.login-box small {
  margin: -0.25rem 0 0.7rem;
  color: var(--muted);
}

.animated-input {
  width: 100%;
  min-width: 0;
  padding: 0.75rem;
  border: 1px solid var(--ink);
  border-radius: 0.35rem;
  color: var(--ink);
  background: #fff;
}

.animated-input:focus {
  border-color: var(--purple);
  outline: none;
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.2);
}

.login-btn {
  width: 100%;
  margin-top: 0.5rem;
}

.login-status {
  min-height: 2.8rem;
  margin: 0.5rem 0 0;
  color: var(--purple);
  font-weight: 700;
  line-height: 1.4;
}

.site-footer {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 1.4rem 0 2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
}

@media (max-width: 960px) {
  .page {
    min-height: auto;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .pack-grid,
  .store-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .store-cards {
    width: min(100%, 620px);
  }

  .profile-layout {
    grid-template-columns: 1fr;
  }

  .login-box {
    max-width: 560px;
    justify-self: stretch;
  }
}

@media (max-width: 640px) {
  .site-header {
    gap: 0.9rem;
    flex-direction: column;
    justify-content: center;
    min-height: 0;
    padding: 1rem 0;
  }

  .main-nav {
    width: 100%;
    justify-content: space-between;
  }

  .nav-link {
    flex: 1 1 4rem;
    padding: 0.5rem 0.25rem;
  }

  .page {
    padding-top: clamp(2.75rem, 12vw, 4rem);
  }

  h1,
  .section-heading h1 {
    font-size: clamp(2.7rem, 13vw, 4.2rem);
  }

  .battle-panel,
  .reveal-panel,
  .login-box {
    padding: 1rem;
    border-radius: 0.85rem;
    box-shadow: 0 12px 0 rgba(17, 17, 29, 0.12);
  }

  .battle-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .battle-toolbar .button {
    width: 100%;
  }

  .game-battle {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .battle-card,
  .battle-card-empty {
    width: min(100%, 19rem);
    min-height: 0;
  }

  .battle-card-empty {
    min-height: 13rem;
  }

  .versus {
    line-height: 1;
    text-align: center;
  }

  .game-result {
    font-size: 1rem;
  }

  .pack-grid,
  .store-cards {
    grid-template-columns: 1fr;
  }

  .pack-card {
    min-height: 0;
    aspect-ratio: 16 / 12;
  }

  .pack-card img {
    object-position: center 38%;
  }

  .store-cards {
    width: min(100%, 21rem);
  }

  .store-card {
    aspect-ratio: 2 / 3;
  }

  .card-reveal-area {
    gap: 0.75rem;
  }

  .card {
    flex-basis: min(100%, 9rem);
    width: min(100%, 9rem);
    padding: 0.5rem;
  }

  .card-stat-line {
    font-size: 0.53rem;
  }

  .site-footer {
    align-items: center;
    flex-direction: column;
    padding-bottom: 1.5rem;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .site-header,
  .site-footer,
  main {
    width: min(var(--content-width), calc(100% - 1.5rem));
  }

  .main-nav {
    justify-content: center;
  }

  .nav-link {
    flex-basis: 45%;
  }

  .eyebrow,
  .section-kicker {
    font-size: 0.65rem;
  }

  .pack-meta {
    padding: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 1ms !important;
    transition-duration: 1ms !important;
  }
}