@font-face {
  font-family: "Geneva";
  src: url("fonts/geneva-9-2.otf.woff2") format("woff2");
  font-display: swap;
  font-weight: normal normal;
}

@font-face {
  font-family: "Chicago";
  src: url("fonts/chicago-12-1.otf.woff2") format("woff2");
  font-display: swap;
  font-weight: normal normal;
}

:root {
  color-scheme: light dark;

  --primary-background: light-dark(#f5f5f5, #1a1a1a);
  --primary-text: light-dark(#333, #e0e0e0);
  --secondary-text: light-dark(#666, #aaa);
  --surface-primary: light-dark(
    rgba(255, 255, 255, 0.98),
    rgba(40, 40, 40, 0.98)
  );
  --surface-secondary: light-dark(#f8f8f8, #2a2a2a);
  --border-primary: light-dark(#ddd, #555);
  --border-hover: light-dark(#666, #ccc);
  --border-active: light-dark(#666, #ccc);
  --button-secondary: light-dark(#f8f9fa, #3a3a3a);
  --tooltip-background: light-dark(#333, #555);
  --tooltip-text: light-dark(white, #f0f0f0);
  --bezel-light: light-dark(#f0f0f0, #4a4a4a);
  --bezel-dark: light-dark(#d5d5d5, #2a2a2a);
  --bezel-border-light: light-dark(#e8e8e8, #555);
  --bezel-border-dark: light-dark(#ddd, #444);
  --screen-border: light-dark(#333, #666);
  --canvas-white: white;
  --link-color: light-dark(#999, #999);
  --theme-toggle-background: light-dark(#1a1a1a, #f5f5f5);

  /* Pattern background colors for JavaScript consumption */
  --pattern-bg-dark: light-dark(#e8e8e8, #2a2a2a);
  --pattern-bg-light: light-dark(#f8f8f8, #1a1a1a);
}

a {
  color: var(--link-color);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 3px;
  text-decoration-style: dashed;
}

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

.pixelated {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

body {
  font-family: "Geneva", sans-serif;
  font-size: 24px;
  background-color: var(--primary-background);
  color: var(--primary-text);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Chicago", sans-serif;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 40px;

  .header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    position: relative;
  }

  h1 {
    margin-bottom: 10px;
    font-weight: bold;
  }
  p {
    img {
      max-width: 100%;
      object-fit: contain;
    }
  }
}

theme-toggle {
  button {
    background: var(--theme-toggle-background);
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-text);
    position: absolute;
    right: 0;

    &:hover {
      border-color: var(--border-active);
      color: var(--border-active);
    }

    .sun-icon {
      display: none;
    }

    .moon-icon {
      display: block;
    }
  }

  &:not(:defined) {
    display: none;
  }
}

body[style*="color-scheme: dark"] {
  .sun-icon {
    display: block;
  }

  .moon-icon {
    display: none;
  }
}

header {
  p {
    font-size: 28px;
    color: var(--secondary-text);
    margin-bottom: 0.5rem;
  }
}

footer {
  margin-top: 40px;
  margin-bottom: 20px;
  p {
    color: var(--secondary-text);
    text-align: center;
  }
}

.showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.patterns-section h2,
.display-section h2 {
  margin-bottom: 20px;
  text-align: center;
}

.loading-indicator {
  text-align: center;
  padding: 40px 20px;
  color: var(--secondary-text);
  font-style: italic;
  background-color: var(--surface-primary);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
}

.display-section {
  /* Ensure display section can scroll horizontally on small screens */
  overflow-x: auto;
  min-width: 0;

  p {
    text-align: center;
    margin-bottom: 0.5em;
  }
}

#patternsControls {
  display: flex;
  flex-direction: column;
}

.patterns-grid {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 20px;
  background-color: var(--surface-primary);
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.pattern-item {
  width: 56px;
  height: 56px;
  border: 4px solid transparent;
  cursor: pointer;
}

.pattern-item:hover {
  border-color: var(--border-hover);
}

.pattern-item.active {
  border-color: var(--border-active);
  border-style: dashed;
}

.pattern-item canvas {
  width: 100%;
  height: 100%;
}

.pattern-info {
  background-color: var(--surface-primary);
  padding: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.pattern-info .pattern-preview {
  margin-top: 10px;
  background-color: var(--surface-secondary);
  padding: 10px;
  border-radius: 4px;
}

.pattern-info .pattern-preview pre {
  font-family: Courier, monospace;
  font-size: 16px;
  line-height: 1;
  margin: 0;
  letter-spacing: 1px;
}

.copy-btn {
  background: none;
  border: 1px solid var(--border-primary);
  border-radius: 3px;
  padding: 4px;
  margin-left: 8px;
  cursor: pointer;
  color: var(--secondary-text);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 26px;
  width: 26px;
}

.copy-btn:hover {
  border-color: var(--border-active);
  color: var(--border-active);
  background-color: var(--button-secondary);
}

.copy-btn svg {
  width: 14px;
  height: 14px;
}

.pbm-label {
  cursor: help;
  border-bottom: 1px dotted var(--secondary-text);
  font-weight: bold;
  border-radius: 2px;
}

.pbm-label:hover {
  background-color: color-mix(in srgb, var(--border-active) 10%, transparent);
}

.pattern-data {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.pattern-data pre {
  flex: 1;
  margin: 0;
}

.number-representations {
  width: 280px;
  p {
    margin-bottom: 5px;
  }
  dl {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 5px 10px;
    font-size: 20px;

    dt {
      color: var(--primary-text);
    }

    dd {
      color: var(--secondary-text);
      word-break: break-all;
    }
  }
}

/* Display Indicator Styles */
.screen {
  cursor: pointer;
  transition: all 0.2s ease;
  border-radius: 8px;
}

.screen:hover {
  box-shadow:
    0 0 0 2px var(--border-hover),
    0 4px 20px rgba(0, 0, 0, 0.15);
}

.display-indicator {
  position: absolute;
  bottom: 8px;
  right: 8px;
  pointer-events: none;
}

.download-icon {
  width: 32px;
  height: 32px;
  background-color: rgba(255, 255, 255, 0.95);
  border: 2px solid var(--border-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: all 0.3s ease;
  opacity: 0.8;
}

.screen:hover .download-icon {
  transform: scale(1.1);
  opacity: 1;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.display-indicator.pulse .download-icon {
  animation: pulseIcon 1s ease-out;
}

@keyframes pulseIcon {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
  }
  100% {
    transform: scale(1);
    opacity: 0.8;
  }
}

/* Subtle mobile indicator */
@media (hover: none) and (pointer: coarse) {
  .download-icon {
    opacity: 0.6;
    width: 28px;
    height: 28px;
  }

  .screen:active {
    transform: scale(0.98);
  }
}

/* Modal Dialog Styles */
.wallpaper-modal {
  max-width: 90vw;
  max-height: 85vh;
  width: 800px;
  margin: auto;
  padding: 0;
  border: 2px solid var(--border-primary);
  border-radius: 12px;
  background-color: var(--surface-primary);
  color: var(--primary-text);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);

  &::backdrop {
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
  }

  &[open] {
    animation: modalFadeIn 0.2s ease-out;
  }
}

@keyframes modalFadeIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(-20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px 16px 24px;
  border-bottom: 1px solid var(--border-primary);
  background-color: var(--surface-secondary);
  border-radius: 10px 10px 0 0;

  h2 {
    margin: 0;
    font-family: "Chicago", sans-serif;
    font-size: 18px;
    color: var(--primary-text);
  }
}

.modal-close-btn {
  background: none;
  border: none;
  font-size: 24px;
  font-weight: bold;
  color: var(--secondary-text);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
  line-height: 1;

  &:hover {
    background-color: var(--border-primary);
    color: var(--primary-text);
  }

  &:active {
    transform: scale(0.95);
  }
}

.modal-content {
  padding: 24px;
  max-height: 60vh;
  overflow-y: auto;

  p {
    margin: 0 0 20px 0;
    color: var(--secondary-text);
    font-size: 16px;
    text-align: center;
  }
}

.modal-pattern-preview {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
}

.pattern-variant {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.modal-pattern-canvas {
  border: 2px solid var(--border-primary);
  border-radius: 8px;
  background-color: var(--canvas-white);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.pattern-label {
  font-family: "Geneva", sans-serif;
  font-size: 14px;
  color: var(--secondary-text);
  font-weight: bold;
}

.wallpaper-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.wallpaper-resolution {
  background-color: var(--surface-secondary);
  border-radius: 6px;
  padding: 15px;
  border: 1px solid var(--border-primary);

  h4 {
    margin: 0 0 12px 0;
    color: var(--primary-text);
    font-size: 16px;
    text-align: center;
    font-family: "Chicago", sans-serif;
    line-height: 1.2;

    .resolution-text {
      font-size: 12px;
      color: var(--secondary-text);
      font-family: "Geneva", sans-serif;
      font-weight: normal;
    }
  }
}

.wallpaper-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.wallpaper-link-container {
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: 8px;
  align-items: center;
}

.wallpaper-size-label {
  font-size: 14px;
  color: var(--primary-text);
  font-weight: bold;
  font-family: "Chicago", sans-serif;
  min-width: 40px;
  text-align: right;
}

.wallpaper-link {
  display: inline-block;
  padding: 6px 12px;
  color: var(--primary-text);
  background-color: var(--surface-primary);
  text-decoration: none;
  border-radius: 4px;
  font-size: 14px;
  font-weight: normal;
  text-align: center;
  border: 1px solid var(--border-primary);
  transition: all 0.2s ease;

  &:hover {
    background-color: var(--button-secondary);
    border-color: var(--border-hover);
    color: var(--primary-text);
  }

  &.regular {
    background-image: repeating-linear-gradient(
      45deg,
      transparent,
      transparent 2px,
      var(--border-primary) 2px,
      var(--border-primary) 3px
    );
    background-size: 8px 8px;
  }

  &.inverted {
    background-image: repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 2px,
      var(--border-primary) 2px,
      var(--border-primary) 3px
    );
    background-size: 8px 8px;
  }
}

@media (max-width: 768px) {
  .wallpaper-modal {
    max-width: 95vw;
    max-height: 90vh;
    margin: 20px auto;
  }

  .modal-header {
    padding: 16px 20px 12px 20px;

    h2 {
      font-size: 16px;
    }
  }

  .modal-content {
    padding: 20px;
    max-height: 70vh;
  }

  .modal-pattern-preview {
    gap: 16px;
    margin-bottom: 20px;
  }

  .modal-pattern-canvas {
    width: 64px;
    height: 64px;
  }

  .pattern-label {
    font-size: 12px;
  }

  .wallpaper-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .wallpaper-link-container {
    grid-template-columns: auto 1fr 1fr;
    gap: 6px;
  }

  .wallpaper-link {
    font-size: 12px;
    padding: 5px 8px;
  }
}

.downloads {
  background-color: var(--surface-primary);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  margin-top: 30px;
}

.downloads h2 {
  margin: 0 0 10px 0;
  color: var(--primary-text);
  text-align: center;
}

.downloads p {
  margin: 0 0 20px 0;
  color: var(--secondary-text);
  text-align: center;
  font-size: 16px;
}

.download-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.download-row {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px;
  background-color: var(--surface-secondary);
  border-radius: 6px;
  border: 1px solid var(--border-primary);

  .resolutions {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-evenly;
  }
}

.format-header {
  font-weight: bold;
  font-size: 14px;
  color: var(--primary-text);
  min-width: 60px;
  font-family: "Chicago", sans-serif;
}

.download-row .download-link {
  display: inline-block;
  padding: 6px 12px;
  color: var(--primary-text);
  background-color: var(--surface-primary);
  text-decoration: none;
  border-radius: 4px;
  font-size: 16px;
  font-weight: normal;
  min-width: 70px;
  text-align: center;
  border: 1px solid var(--border-primary);

  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 1px,
    var(--border-primary) 1px,
    var(--border-primary) 1px,
    transparent 1px,
    transparent 3px
  );
  background-size: 4px 4px;
}

.download-row .download-link:hover {
  border-color: var(--border-hover);
  background-color: var(--button-secondary);
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.tooltip {
  position: absolute;
  z-index: 1000;
  background-color: var(--tooltip-background);
  color: var(--tooltip-text);
  padding: 8px 12px;
  border-radius: 4px;
  line-height: 1.4;
  max-width: 300px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-5px);
  pointer-events: none;
}

.tooltip.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border: 5px solid transparent;
  border-top-color: var(--tooltip-background);
}

.virtual-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.bezel {
  background: linear-gradient(145deg, var(--bezel-light), var(--bezel-dark));
  padding: 40px 30px 40px 30px;
  border-radius: 20px;
  box-shadow:
    inset 0 0 0 4px var(--bezel-border-light),
    inset 0 0 0 8px var(--bezel-border-dark),
    0 10px 30px rgba(0, 0, 0, 0.3);
  position: relative;

  p {
    text-align: center;
    margin-top: 1em;
    color: var(--secondary-text);
  }
}

.screen {
  width: 518px;
  height: 348px;
  background-color: #000;
  border: 3px solid var(--screen-border);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
}

.desktop {
  width: 512px;
  height: 342px;
  background-color: var(--canvas-white);
}

@media (max-width: 1200px) {
  .showcase {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  #patternsControls {
    flex-direction: row;
    gap: 10px;
  }
  .pattern-info .pattern-preview pre {
    font-size: 12px;
  }
  .bezel {
    padding: 30px 20px 40px 20px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 10px;
  }

  .theme-toggle {
    position: static;
  }

  .pattern-info {
    display: none;
  }

  .download-row .download-link {
    min-width: inherit;
  }

  .patterns-grid {
    margin-bottom: 10px;
    padding: 5px;
  }

  .pattern-item {
    width: 32px;
    height: 32px;
  }

  .bezel {
    padding: 20px 15px 30px 15px;
    width: 100%;
    p {
      display: none;
    }
  }

  .screen {
    width: 100%;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 24px;
  }

  .patterns-section h2,
  .display-section h2 {
    margin-bottom: 10px;
  }
}