:root {
  --abc-gap-base: clamp(0.65rem, 1.6vw, 1.1rem);
  --abc-gap: var(--abc-gap-base);
  --abc-panel-radius: clamp(1.75rem, 4vw, 2.75rem);
  --abc-card-size-base: clamp(82px, 6.8vw, 136px);
  --abc-card-width: var(--abc-card-size-base);
  --abc-card-height: calc(var(--abc-card-width) * 1.28);
  --abc-shadow: 0 18px 55px rgba(9, 19, 52, 0.12);
  --abc-checkbox-size: 20px;
}

.abc-page {
  background: var(--color-background, #eff5ff);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.abc-page.menu-open {
  overflow: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.menu-toggle,
.filter-menu__close {
  width: clamp(46px, 5vw, 54px);
  height: clamp(46px, 5vw, 54px);
  border-radius: 50%;
  border: none;
  background: var(--color-hero, #ffffff);
  box-shadow: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  padding: 0;
}

.menu-toggle {
  transition: none;
}

.menu-toggle img,
.filter-menu__close img {
  width: clamp(22px, 3.2vw, 26px);
  height: clamp(22px, 3.2vw, 26px);
}

.menu-toggle:hover,
.menu-toggle:focus-visible,
.filter-menu__close:hover,
.filter-menu__close:focus-visible {
  transform: none;
  box-shadow: none;
  outline: none;
}

.abc-page.menu-open .menu-toggle:hover,
.abc-page.menu-open .menu-toggle:focus-visible {
  transform: none;
  box-shadow: none;
}

.menu-toggle:active,
.filter-menu__close:active {
  transform: translateY(0);
}

.menu-toggle {
  position: fixed;
  top: clamp(0.6rem, 3vw, 1.2rem);
  right: clamp(0.6rem, 3vw, 1.2rem);
  z-index: 40;
}

.abc-page.menu-open .menu-toggle {
  opacity: 0;
  pointer-events: none;
}

.filter-menu {
  position: fixed;
  top: clamp(0.45rem, 2.5vw, 0.9rem);
  right: clamp(0.45rem, 2.5vw, 0.9rem);
  width: min(92vw, 340px);
  background: var(--color-hero, #ffffff);
  border-radius: var(--abc-panel-radius);
  box-shadow: var(--abc-shadow);
  padding: clamp(1.2rem, 3vw, 2rem) clamp(1.2rem, 3vw, 2rem) clamp(1.4rem, 3.2vw, 2.1rem);
  display: flex;
  flex-direction: column;
  gap: clamp(1.25rem, 3vw, 1.75rem);
  transform-origin: top right;
  transform: scale(0.9) translateY(-10px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.25s ease, opacity 0.25s ease;
  z-index: 50;
}

.abc-page.menu-open .filter-menu {
  transform: scale(1) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.filter-menu__close {
  position: absolute;
  top: clamp(0.15rem, 1vw, 0.35rem);
  right: clamp(0.15rem, 1vw, 0.35rem);
  box-shadow: none;
  opacity: 0;
  pointer-events: none;
  z-index: 60;
}

.abc-page.menu-open .filter-menu__close {
  opacity: 1;
  pointer-events: auto;
}

.filter-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-right: clamp(2.5rem, 6vw, 3.5rem);
}

.filter-menu__form {
  display: flex;
}

.filter-menu__list {
  column-count: 2;
  column-gap: clamp(1.4rem, 4vw, 2.25rem);
  width: 100%;
}

.filter-menu__option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1rem;
  color: var(--color-text, #1f2937);
  text-transform: lowercase;
  break-inside: avoid;
  margin-bottom: 0.6rem;
}

.filter-menu__option:last-child {
  margin-bottom: 0;
}

.filter-menu__option:first-child {
  column-span: all;
  margin-bottom: clamp(0.75rem, 3vw, 1rem);
}

.filter-menu__option input[type="checkbox"] {
  width: var(--abc-checkbox-size);
  height: var(--abc-checkbox-size);
  accent-color: #2baa2b;
  cursor: pointer;
}

.filter-menu__backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 19, 52, 0.24);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  z-index: 30;
}

.abc-page.menu-open .filter-menu__backdrop {
  opacity: 1;
  pointer-events: auto;
}

.abc-main {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: clamp(0.75rem, 2vw, 1.75rem);
}

.abc-board {
  width: min(100%, 1480px);
  height: clamp(420px, 86vh, 640px);
  background: transparent;
  border-radius: clamp(2rem, 4vw, 3.25rem);
  box-shadow: none;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: visible;
}

.abc-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--abc-card-width), var(--abc-card-width)));
  grid-auto-rows: var(--abc-card-height);
  gap: var(--abc-gap);
  justify-content: flex-start;
  align-content: flex-start;
  align-items: center;
  transform-origin: top left;
}

.abc-card {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  box-sizing: border-box;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  user-select: none;
  touch-action: manipulation;
}

.abc-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-touch-callout: none;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  backface-visibility: hidden;
}

.abc-grid__empty {
  margin: clamp(1.5rem, 4vw, 2.5rem) 0 0;
  font-size: 1.05rem;
  color: var(--color-muted, #4b5563);
}

@media (max-width: 960px) {
  .abc-page {
    overflow-y: auto;
  }

  .abc-main {
    padding: 0.65rem clamp(0.5rem, 3vw, 1rem) clamp(0.85rem, 3vw, 1.4rem);
  }

  .abc-board {
    padding: clamp(0.6rem, 3vw, 1.1rem);
  }
}

@media (max-width: 720px) {
  .filter-menu {
    width: min(100vw - 2.5rem, 360px);
  }

  .filter-menu__list {
    column-count: 2;
    column-gap: clamp(1rem, 4vw, 1.8rem);
  }

  .abc-main {
    padding: 0.55rem clamp(0.45rem, 5vw, 0.85rem) clamp(0.75rem, 6vw, 1.25rem);
    overflow-y: auto;
  }

  .abc-board {
    padding: clamp(0.5rem, 4vw, 0.9rem);
    height: auto;
  }
}

@media (max-width: 520px) {
  .filter-menu {
    right: 50%;
    transform: translate(150%, 0);
  }

  .abc-page.menu-open .filter-menu {
    right: 50%;
    transform: translate(50%, 0);
  }

  .filter-menu__list {
    column-count: 1;
    column-gap: 1.25rem;
  }

  .menu-toggle,
  .filter-menu__close {
    width: clamp(48px, 12vw, 58px);
    height: clamp(48px, 12vw, 58px);
  }

  .menu-toggle img,
  .filter-menu__close img {
    width: clamp(22px, 6vw, 28px);
    height: clamp(22px, 6vw, 28px);
  }

  .abc-main {
    padding: 0.45rem clamp(0.3rem, 8vw, 0.6rem) clamp(0.65rem, 8vw, 1rem);
    overflow-y: auto;
  }

  .abc-board {
    padding: clamp(0.4rem, 6vw, 0.75rem);
    min-height: auto;
  }
}