@import url('https://fonts.cdnfonts.com/css/better-vcr');

:root {
  --settings-bg: rgba(10, 10, 20, 0.95);
  --settings-border: rgba(255, 255, 255, 0.15);
  --settings-text: #f5f5f5;
  --accent: #0ff;
  --destructive: #f40;
  --font-vcr: 'Better VCR', monospace;
}

#settings-menu {
  position: fixed;
  top: 1rem;
  left: 1rem;
  width: 300px;
  max-height: calc(100vh - 2rem);
  padding: 0.75rem 0.9rem 0.9rem;
  border-radius: 4px;
  border: 1px solid var(--settings-border);
  background: var(--settings-bg);
  color: var(--settings-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 0.85rem;
  z-index: 19;
  backdrop-filter: blur(14px);
  display: none;
  overflow-y: auto;
  box-sizing: border-box;
}

#settings-menu *,
#settings-menu *::before,
#settings-menu *::after {
  box-sizing: border-box;
}

#settings-menu.side-right {
  left: auto;
  right: 1rem;
}

#settings-menu.open {
  display: block;
}

.menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

#settings-menu h2 {
  margin: 0;
  font-family: var(--font-vcr);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.menu-header-buttons {
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}

.menu-header-buttons button {
  width: 1.8rem;
  height: 1.8rem;
  padding: 0;
  border-radius: 4px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-size: 0.9rem;
  line-height: 1;
}

.menu-header-buttons button:hover {
  background: rgba(0, 255, 255, 0.14);
}

.hint {
  font-size: 0.75rem;
  opacity: 0.7;
  margin: 0 0 0.6rem;
  line-height: 1.3;
}

.setting-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: 0.6rem;
}

.settings-section {
  margin-bottom: 0.6rem;
}

.section-panel {
  padding-top: 0.5rem;
}

.section-panel[hidden] {
  display: none;
}

.setting-group label span {
  font-weight: 600;
}

.setting-toggle {
  width: 100%;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--settings-border);
  border-radius: 4px;
  background: transparent;
  color: var(--settings-text);
  cursor: pointer;
  font: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-align: left;
}

.setting-toggle:hover,
.setting-toggle[aria-expanded="true"] {
  border-color: var(--accent);
  color: var(--accent);
}

.range-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 0.4rem;
  width: 100%;
}

.range-details {
  min-width: 0;
}

.range-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.35rem;
  margin-bottom: 0.25rem;
}

.range-label-row label {
  display: block;
  margin-bottom: 0;
}

.range-row {
  display: flex;
  align-items: center;
  width: 100%;
}

.range-row input[type="range"] {
  width: 100%;
  min-width: 0;
  accent-color: var(--accent);
}

.range-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 0.2rem;
  min-width: 3.25rem;
}

.range-meta .value-label {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  text-align: right;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1;
}

.reset-param {
  width: 1.45rem;
  height: 1.45rem;
  padding: 0;
  border: 1px solid var(--destructive);
  border-radius: 3px;
  background: transparent;
  color: var(--destructive);
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  flex-shrink: 0;
}

.reset-param:hover {
  background: rgba(255, 68, 0, 0.14);
}

#reset-button,
.small-button {
  width: 100%;
  padding: 0.35rem 0.5rem;
  border-radius: 4px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  font-family: var(--font-vcr);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.8rem;
  margin-top: 0.4rem;
  transition: background 80ms ease, color 80ms ease, box-shadow 80ms ease;
}

#reset-button {
  border-color: var(--destructive);
  color: var(--destructive);
}

.copy-row {
  display: flex;
  flex-direction: row;
  gap: 0.4rem;
  margin-top: 0.4rem;
}

.small-button {
  margin-top: 0;
  flex: 1;
}

.menu-action:active,
.menu-action.is-clicked {
  background: var(--accent);
  color: #0a0a14;
  box-shadow: inset 0 0 0 1px var(--accent), 0 0 14px rgba(0, 255, 255, 0.55);
}

#reset-button.menu-action:active,
#reset-button.menu-action.is-clicked {
  background: var(--destructive);
  color: #0a0a14;
  box-shadow: inset 0 0 0 1px var(--destructive), 0 0 14px rgba(255, 68, 0, 0.55);
}

.color-label-row {
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.swatch-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.5rem;
}

.swatch {
  width: 1.65rem;
  height: 1.65rem;
  padding: 0;
  border-radius: 4px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  cursor: pointer;
}

.swatch[aria-selected="true"] {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.iro-mount {
  display: flex;
  justify-content: center;
  min-height: 180px;
  overflow: hidden;
}

.iro-mount[hidden] {
  display: none;
}

.color-hex-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.color-hex {
  flex: 1;
  min-width: 0;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--settings-border);
  border-radius: 4px;
  background: transparent;
  color: var(--settings-text);
  font: inherit;
  font-family: var(--font-vcr);
  letter-spacing: 0.04em;
}

.color-hex:focus {
  border-color: var(--accent);
  outline: none;
}

@media (max-width: 640px) {
  #settings-menu {
    width: 82vw;
  }
}