@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;
  --spot-accent: var(--destructive);
  --font-vcr: 'Better VCR', monospace;
  --demo-opacity: 0.75;
  --settings-pattern: repeating-conic-gradient(
    rgba(0, 255, 255, 0.05) 0% 25%,
    rgba(255, 0, 255, 0.05) 0% 50%
  ) 0 0 / 40px 40px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: transparent;
  color: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Persistent demo background — independent of settings-mode checkerboard */
#demo-backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background: transparent;
  transition: opacity 400ms ease;
}

#demo-backdrop[data-bg="1"],
#demo-backdrop[data-bg="2"],
#demo-backdrop[data-bg="3"] {
  opacity: var(--demo-opacity);
}

#demo-backdrop[data-bg="1"] {
  background:
    url("../img/apartment_panorama.png") center / auto 100% no-repeat;
}

#demo-backdrop[data-bg="2"],
#demo-backdrop[data-bg="3"] {
  background-color: #0ff;
}

#preview-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1;
  opacity: 0;
  pointer-events: none;
  transition: opacity 500ms ease;
  background: transparent;
}

body.settings-mode.checkerboard-enabled #preview-backdrop {
  opacity: 1;
  background: var(--settings-pattern);
}

body.settings-mode {
  background: transparent;
}

#smoke-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  z-index: 2;
}

#overlay-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  transition: opacity 0.2s ease;
}

body.settings-mode #overlay-canvas {
  opacity: 1;
}

/* Settings mode controls */

#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-size: 0.85rem;
  z-index: 19;
  backdrop-filter: blur(14px);
  display: none;
  overflow-y: auto;
}

#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 {
  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);
}

#help-overlay {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  background: rgba(0, 0, 0, 0.58);
  backdrop-filter: blur(12px);
  cursor: zoom-in;
}

#help-overlay[hidden] {
  display: none;
}

#help-image {
  max-width: calc(100vw - 3rem);
  max-height: calc(100vh - 3rem);
  width: auto;
  height: calc(100vh - 3rem);
  object-fit: contain;
  border: 1px solid var(--accent);
  border-radius: 4px;
  box-shadow: 0 0 2rem rgba(0, 255, 255, 0.22);
  transition: width 0.2s ease, height 0.2s ease;
}

#help-overlay.zoomed {
  cursor: zoom-out;
  place-items: start center;
  overflow-x: hidden;
  overflow-y: auto;
}

#help-overlay.zoomed #help-image {
  width: calc(100vw - 3rem);
  height: auto;
  max-width: none;
  max-height: none;
}

#help-close-button {
  position: fixed;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: rgba(10, 10, 20, 0.8);
  color: var(--accent);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
}

#help-close-button:hover {
  background: rgba(0, 255, 255, 0.14);
}

.hint {
  font-size: 0.75rem;
  opacity: 0.7;
  margin-bottom: 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;
}

.effect-control {
  margin-bottom: 0.75rem;
}

.effect-control:last-child {
  margin-bottom: 0;
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.4rem;
  font-weight: 600;
  cursor: pointer;
}

.switch-row input {
  accent-color: var(--accent);
}

.effect-control input[type="range"]:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.effect-control .value-label {
  transition: opacity 0.15s ease;
}

.effect-control:has(input[type="checkbox"]:not(:checked)) .value-label {
  opacity: 0.4;
}

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

.settings-section .row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.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);
}

#color-controls {
  margin-top: 0.75rem;
}

#color-controls[hidden] {
  display: none;
}

#color-controls .row {
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

#color-picker {
  width: 100%;
  min-height: 220px;
  display: flex;
  justify-content: center;
  overflow: hidden;
}

#color-picker[hidden] {
  display: none;
}

.range-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 3.5rem;
  align-items: stretch;
  gap: 0.5rem;
  width: 100%;
}

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

.range-details label {
  display: block;
  margin-bottom: 0.25rem;
}

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

.range-row input[type="range"] {
  width: 100%;
  min-width: 0;
}

.range-control > .value-label {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  text-align: right;
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1;
  opacity: 1;
}

.settings-section input#color-input {
  width: 100%;
  height: 1.8rem;
  padding: 0 0.35rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  outline: none;
  background: rgba(0, 255, 255, 0.12);
  color: var(--accent);
  box-shadow: inset 0 0 0 1px rgba(0, 255, 255, 0.12), 0 0 0.45rem rgba(0, 255, 255, 0.12);
  caret-color: var(--accent);
  font-family: var(--font-vcr);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  cursor: text;
}

.settings-section input#color-input:focus {
  background: rgba(0, 255, 255, 0.14);
  box-shadow: 0 0 0 1px var(--accent), 0 0 0.75rem rgba(0, 255, 255, 0.22);
}

.value-label {
  font-size: 0.75rem;
  opacity: 0.8;
}

.field-hint {
  font-size: 0.7rem;
  opacity: 0.65;
  margin-top: 0.25rem;
  line-height: 1.3;
}

.bg-option {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  margin-bottom: 0.45rem;
  cursor: pointer;
  line-height: 1.3;
}

.bg-option input {
  margin-top: 0.15rem;
  accent-color: var(--accent);
}

#test-button,
#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;
}

/* Footer action click feedback — must read clearly in OBS Interact */
.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);
}

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