:root {
  color-scheme: dark;
  --bg: #0a0a0f;
  --surface: #12121a;
  --surface-2: #171722;
  --border: #242438;
  --accent: #ff2d55;
  --accent-2: #00aaff;
  --accent-3: #ffe600;
  --text: #e8e8f0;
  --muted: #77778f;
  --danger: #ff5d72;
  --success: #65e7a4;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --glow: 0 0 8px rgba(0, 170, 255, 0.55), 0 0 24px rgba(0, 170, 255, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 20% -10%, rgba(0, 170, 255, 0.09), transparent 32rem),
    radial-gradient(circle at 90% 5%, rgba(255, 45, 85, 0.07), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

button,
input {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

.site-header {
  position: relative;
  padding: 3rem 1rem 2rem;
  text-align: center;
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  background-size: 200% 100%;
  animation: rainbow 3s linear infinite;
}

@keyframes rainbow {
  to {
    background-position: 200% 0;
  }
}

.logo {
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: clamp(1.35rem, 5vw, 2.8rem);
  letter-spacing: 0.08em;
  background: linear-gradient(135deg, var(--accent-2), var(--accent-3) 52%, var(--accent));
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 12px rgba(0, 170, 255, 0.42));
}

.subtitle {
  margin-top: 0.8rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.2em;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.9rem 1rem;
  border-block: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.search-wrap {
  display: contents;
}

#search {
  width: min(260px, 100%);
  min-height: 38px;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 0;
  outline: none;
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  appearance: none;
}

#search:focus {
  border-color: var(--accent-2);
  box-shadow: var(--glow);
}

#search::placeholder {
  color: var(--muted);
}

.core-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
}

.filter-btn {
  min-height: 36px;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.48rem;
  letter-spacing: 0.07em;
  transition: transform 120ms ease, border-color 120ms ease, color 120ms ease, background 120ms ease;
}

.filter-btn:hover,
.filter-btn:focus-visible,
.filter-btn.active {
  border-color: var(--accent-2);
  background: rgba(0, 170, 255, 0.08);
  color: var(--accent-2);
  outline: none;
}

.filter-btn:active {
  transform: translateY(1px);
}

.thread-control {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 38px;
  padding: 0 0.7rem;
  border: 1px solid var(--border);
  background: var(--surface);
}

.switch-row {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.47rem;
}

.switch-row input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.switch {
  position: relative;
  width: 34px;
  height: 18px;
  border: 1px solid var(--muted);
  background: #09090d;
  transition: 140ms ease;
}

.switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 10px;
  height: 10px;
  background: var(--muted);
  transition: 140ms ease;
}

.switch-row input:checked + .switch {
  border-color: var(--success);
}

.switch-row input:checked + .switch::after {
  transform: translateX(16px);
  background: var(--success);
  box-shadow: 0 0 10px rgba(101, 231, 164, 0.45);
}

.switch-row input:focus-visible + .switch {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

.switch-row input:disabled + .switch,
.switch-row input:disabled ~ span {
  opacity: 0.45;
  cursor: not-allowed;
}

.thread-status {
  color: var(--muted);
  font-size: 0.67rem;
  white-space: nowrap;
}

.thread-status.available {
  color: var(--success);
}

.thread-status.unavailable {
  color: var(--danger);
}

.notice {
  width: min(980px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.75rem 0.9rem;
  border: 1px solid rgba(255, 93, 114, 0.45);
  background: rgba(255, 93, 114, 0.07);
  color: #ffc2cb;
  font-size: 0.82rem;
  line-height: 1.5;
}

.loading {
  padding: 4rem 1rem;
  text-align: center;
  color: var(--accent-2);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.68rem;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% {
    opacity: 0.35;
  }
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.2rem;
  width: min(1400px, 100%);
  margin: 0 auto;
  padding: 2rem;
}

.game-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
  color: inherit;
  cursor: pointer;
  text-align: left;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.18);
  transition: transform 170ms ease, border-color 170ms ease, box-shadow 170ms ease;
  animation: card-in 360ms ease both;
}

@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.game-card:hover,
.game-card:focus-visible {
  z-index: 2;
  border-color: var(--accent-2);
  outline: none;
  transform: translateY(-4px);
  box-shadow: var(--glow), var(--shadow);
}

.thumb-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: #0d0d18;
}

.thumb-wrap img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}

.game-card:hover .thumb-wrap img,
.game-card:focus-visible .thumb-wrap img {
  transform: scale(1.045);
}

.no-thumb {
  display: grid;
  width: 100%;
  height: 100%;
  place-items: center;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
}

.play-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 170, 255, 0.12);
  opacity: 0;
  transition: opacity 160ms ease;
}

.game-card:hover .play-overlay,
.game-card:focus-visible .play-overlay {
  opacity: 1;
}

.play-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 2px solid var(--accent-2);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.72);
  color: var(--text);
  font-size: 1rem;
}

.card-info {
  padding: 0.7rem 0.75rem 0.85rem;
}

.card-title {
  overflow: hidden;
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.54rem;
  line-height: 1.6;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-core {
  margin-top: 0.4rem;
  overflow: hidden;
  color: var(--accent-3);
  font-size: 0.67rem;
  letter-spacing: 0.11em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-state {
  padding: 4rem 2rem;
  text-align: center;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.68rem;
  line-height: 2;
}

.empty-subtitle {
  margin-top: 1rem;
  color: #4b4b60;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.85rem;
}

.stats {
  min-height: 1.5rem;
  padding: 0.5rem 1rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.72rem;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
  overflow-y: auto;
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  background: rgba(0, 0, 0, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal.open {
  display: block;
}

.modal-panel {
  width: min(1100px, 100%);
  margin: 0 auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.2rem 0 0.8rem;
}

.modal-heading {
  min-width: 0;
}

.modal-title {
  overflow: hidden;
  color: var(--accent-2);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.62rem, 2vw, 0.9rem);
  line-height: 1.5;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.modal-meta {
  margin-top: 0.35rem;
  color: var(--muted);
  font-size: 0.7rem;
}

.close-btn {
  flex: none;
  padding: 0.55rem 0.9rem;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.52rem;
}

.close-btn:hover,
.close-btn:focus-visible {
  outline: none;
  background: var(--accent);
  color: #fff;
}

.emulator-wrap {
  width: 100%;
  min-height: min(74vh, 760px);
  overflow: hidden;
  border: 2px solid var(--border);
  background: #000;
  box-shadow: var(--shadow);
}

#emulator-frame {
  display: block;
  width: 100%;
  height: min(74vh, 760px);
  border: 0;
  background: #000;
}

footer {
  margin-top: 2rem;
  padding: 2rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  font-size: 0.72rem;
}

footer span {
  color: var(--accent-2);
}

.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;
}

@media (max-width: 760px) {
  .site-header {
    padding-block: 2.3rem 1.5rem;
  }

  .toolbar {
    justify-content: stretch;
  }

  #search {
    width: 100%;
  }

  .core-filters {
    justify-content: flex-start;
  }

  .thread-control {
    width: 100%;
    justify-content: space-between;
  }

  .game-grid {
    grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
    gap: 0.8rem;
    padding: 1rem;
  }

  .modal-header {
    align-items: flex-start;
  }

  .emulator-wrap,
  #emulator-frame {
    height: 72vh;
    min-height: 420px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}


/* Local ROM launcher */
.local-rom-btn {
  min-height: 38px;
  padding: 0.48rem 0.9rem;
  border: 1px solid var(--accent-3);
  background: rgba(255, 230, 0, 0.05);
  color: var(--accent-3);
  cursor: pointer;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.46rem;
  letter-spacing: 0.06em;
  transition: transform 120ms ease, background 120ms ease, box-shadow 120ms ease;
}

.local-rom-btn:hover,
.local-rom-btn:focus-visible {
  outline: none;
  background: rgba(255, 230, 0, 0.12);
  box-shadow: 0 0 16px rgba(255, 230, 0, 0.12);
}

.local-rom-btn:active {
  transform: translateY(1px);
}

.core-picker {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  place-items: center;
  padding: max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.core-picker.open {
  display: grid;
}

.core-picker-panel {
  width: min(560px, 100%);
  padding: 1.25rem;
  border: 1px solid var(--border);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.core-picker-kicker,
.core-picker-label {
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.45rem;
  letter-spacing: 0.08em;
}

.core-picker-title {
  margin-top: 0.55rem;
  color: var(--text);
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.68rem, 2vw, 0.9rem);
  line-height: 1.5;
}

.core-picker-file {
  margin-top: 0.9rem;
  overflow: hidden;
  color: var(--accent-2);
  font-size: 0.88rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.core-picker-help {
  margin: 0.6rem 0 1rem;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.core-picker-label {
  display: block;
  margin-bottom: 0.45rem;
}

.core-picker-select {
  width: 100%;
  min-height: 42px;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0;
  outline: none;
  background: #0d0d14;
  color: var(--text);
  font: inherit;
}

.core-picker-select:focus {
  border-color: var(--accent-2);
  box-shadow: var(--glow);
}

.core-picker-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.55rem;
  margin-top: 1rem;
}

.picker-btn {
  min-height: 38px;
  padding: 0.5rem 0.85rem;
  cursor: pointer;
  font-family: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.46rem;
}

.picker-btn.secondary {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}

.picker-btn.primary {
  border: 1px solid var(--accent-2);
  background: rgba(0, 170, 255, 0.08);
  color: var(--accent-2);
}

.picker-btn:hover,
.picker-btn:focus-visible {
  outline: none;
  filter: brightness(1.2);
}

@media (max-width: 760px) {
  .local-rom-btn {
    width: 100%;
  }
}