:root {
  --bg-main: #008080;
  --bg-panel: #c0c0c0;
  --line-light: #ffffff;
  --line-mid: #808080;
  --line-dark: #000000;
  --title-a: #0a246a;
  --title-b: #3a6ea5;
  --text-main: #111;
  --link: #0b2a8c;
  --danger: #a80000;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: Tahoma, 'MS Sans Serif', SimSun, sans-serif;
  color: var(--text-main);
  background: radial-gradient(circle at 12% 20%, #3aa4a4 0%, #008080 50%, #005c5c 100%);
  padding: 16px;
  position: relative;
  overflow-x: hidden;
}

.desktop-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.25;
  background-image:
    linear-gradient(0deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 2px 2px, 2px 2px;
}

.window {
  background: var(--bg-panel);
  border-top: 2px solid var(--line-light);
  border-left: 2px solid var(--line-light);
  border-right: 2px solid var(--line-dark);
  border-bottom: 2px solid var(--line-dark);
  box-shadow: inset -1px -1px 0 var(--line-mid), inset 1px 1px 0 #dfdfdf;
}

.titlebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(90deg, var(--title-a), var(--title-b));
  color: #fff;
  padding: 4px 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.4px;
}

.titlebar-buttons {
  display: inline-flex;
  gap: 4px;
}

.titlebar-buttons span {
  display: inline-block;
  min-width: 18px;
  text-align: center;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.45);
}

.window-body {
  padding: 12px;
}

.hero-window {
  margin-bottom: 12px;
}

.hero-body h1 {
  margin: 4px 0 8px;
  font-size: clamp(22px, 4vw, 36px);
  letter-spacing: 1px;
}

.hero-tag {
  margin: 0;
  color: #0f3f3f;
  font-size: 12px;
}

.marquee-wrap {
  margin-top: 10px;
  overflow: hidden;
  border-top: 2px solid var(--line-mid);
  border-left: 2px solid var(--line-mid);
  border-right: 2px solid var(--line-light);
  border-bottom: 2px solid var(--line-light);
  background: #e9e9e9;
}

.marquee-track {
  white-space: nowrap;
  display: inline-block;
  padding: 4px 0;
  animation: ticker 28s linear infinite;
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-100% - 24px));
  }
}

.layout {
  display: grid;
  grid-template-columns: minmax(220px, 280px) 1fr;
  gap: 12px;
}

.side-body {
  display: grid;
  gap: 10px;
}

.category-list {
  display: grid;
  gap: 8px;
}

.category-item {
  display: grid;
  gap: 6px;
  background: #d5d5d5;
  border-top: 2px solid #efefef;
  border-left: 2px solid #efefef;
  border-right: 2px solid #7b7b7b;
  border-bottom: 2px solid #7b7b7b;
  padding: 8px;
}

.category-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.category-actions {
  display: flex;
  gap: 6px;
}

.label {
  font-size: 13px;
  font-weight: 700;
}

input[type='search'] {
  width: 100%;
  font-size: 14px;
  border-top: 2px solid var(--line-mid);
  border-left: 2px solid var(--line-mid);
  border-right: 2px solid var(--line-light);
  border-bottom: 2px solid var(--line-light);
  padding: 6px 8px;
}

.retro-btn {
  border-top: 2px solid var(--line-light);
  border-left: 2px solid var(--line-light);
  border-right: 2px solid var(--line-dark);
  border-bottom: 2px solid var(--line-dark);
  background: var(--bg-panel);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
}

.retro-btn:active,
.retro-btn.active {
  border-top: 2px solid var(--line-dark);
  border-left: 2px solid var(--line-dark);
  border-right: 2px solid var(--line-light);
  border-bottom: 2px solid var(--line-light);
}

.retro-btn.small {
  padding: 3px 8px;
}

.retro-link {
  color: var(--link);
  text-decoration: underline;
  font-size: 13px;
}

.hint,
.hint-inline {
  color: #444;
  font-size: 12px;
}

.content-body {
  display: grid;
  gap: 10px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  border-top: 2px solid #888;
  border-left: 2px solid #888;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  padding: 5px 8px;
  background: #e7e7e7;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 10px;
}

.card {
  display: grid;
  grid-template-rows: 120px auto auto;
  gap: 8px;
  padding: 8px;
  background: #d5d5d5;
  border-top: 2px solid #efefef;
  border-left: 2px solid #efefef;
  border-right: 2px solid #7b7b7b;
  border-bottom: 2px solid #7b7b7b;
}

.card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-top: 2px solid #707070;
  border-left: 2px solid #707070;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
  background: #f6f6f6;
}

.card-objects img,
.card-software img {
  object-fit: contain;
  padding: 4px;
  background: #ffffff;
}

.card h3 {
  margin: 0;
  font-size: 15px;
}

.card p {
  margin: 0;
  font-size: 13px;
  line-height: 1.4;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.tag {
  display: inline-block;
  font-size: 11px;
  color: #fff;
  background: #4f4f4f;
  padding: 2px 6px;
}

.music-window {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: min(360px, calc(100vw - 32px));
  z-index: 10;
}

.music-body {
  display: grid;
  gap: 8px;
}

.music-controls {
  display: grid;
  grid-template-columns: 72px 38px 1fr;
  align-items: center;
  gap: 8px;
}

input[type='range'] {
  width: 100%;
}

.detail-dialog {
  width: min(760px, calc(100vw - 32px));
  padding: 0;
  border: none;
}

.detail-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.detail-body {
  display: grid;
  gap: 10px;
}

.detail-body img {
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  background: #ffffff;
  border-top: 2px solid #707070;
  border-left: 2px solid #707070;
  border-right: 2px solid #fff;
  border-bottom: 2px solid #fff;
}

hr {
  width: 100%;
  border: none;
  border-top: 2px solid #8a8a8a;
  border-bottom: 2px solid #fff;
  margin: 4px 0;
}

@media (max-width: 980px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .music-window {
    position: static;
    width: 100%;
    margin-top: 12px;
  }
}