/* ============================================================
   Microsoft KB Archive — Windows NT 4.0 Stylesheet
   ============================================================ */

/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Windows NT 4 colour palette */
  --win-bg:            #3a6ea5;   /* NT desktop blue */
  --win-face:          #d4d0c8;   /* Classic NT window grey */
  --win-face-dark:     #c0bdb5;
  --win-light:         #ffffff;
  --win-highlight:     #08216b;   /* NT title bar — deep navy */
  --win-highlight-end: #2563b0;   /* Title bar gradient end */
  --win-title-text:    #ffffff;
  --win-text:          #000000;
  --win-select:        #08216b;
  --win-select-text:   #ffffff;
  --win-border-light:  #ffffff;
  --win-border-mid:    #808080;
  --win-border-dark:   #404040;
  --win-input-bg:      #ffffff;
  --mark-bg:           #ffff00;
  --result-title:      #08216b;
  --result-product:    #444444;

  /* Sizing — everything scaled up for a proper monitor */
  --font-ui:           'Tahoma', 'MS Sans Serif', Geneva, sans-serif;
  --font-mono:         'Courier New', Courier, monospace;
  --font-size-base:    14px;
  --font-size-sm:      12px;
  --font-size-lg:      16px;
  --sidebar-width:     240px;
}

html, body {
  height: 100%;
  background: var(--win-bg);
  font-family: var(--font-ui);
  font-size: var(--font-size-base);
  color: var(--win-text);
  overflow: hidden;
}

/* ── Raised/Sunken borders ────────────────────────────────── */
.raised {
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
}
.sunken {
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
}

/* ── Title Bar ────────────────────────────────────────────── */
.titlebar-outer {
  background: var(--win-face);
  padding: 4px 4px 0 4px;
  border-top:   2px solid var(--win-border-light);
  border-left:  2px solid var(--win-border-light);
  border-right: 2px solid var(--win-border-dark);
}

.titlebar-inner {
  display: flex;
  align-items: center;
  background: linear-gradient(to right, var(--win-highlight), var(--win-highlight-end));
  padding: 3px 4px;
  gap: 6px;
  min-height: 26px;
}

.titlebar-icon { display: flex; align-items: center; flex-shrink: 0; }

.titlebar-title {
  flex: 1;
  color: var(--win-title-text);
  font-size: var(--font-size-base);
  font-weight: bold;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.2px;
}

.titlebar-buttons { display: flex; gap: 2px; flex-shrink: 0; }

.tb-btn {
  width: 22px;
  height: 20px;
  background: var(--win-face);
  border: none;
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
}

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

/* ── Menu Bar ─────────────────────────────────────────────── */
.menubar {
  background: var(--win-face);
  display: flex;
  align-items: flex-start;
  padding: 2px 6px;
  border-left:  2px solid var(--win-border-light);
  border-right: 2px solid var(--win-border-dark);
  border-bottom: 1px solid var(--win-border-mid);
}

.menu-item {
  padding: 3px 10px;
  cursor: default;
  font-size: var(--font-size-base);
  border: 1px solid transparent;
}

.has-dropdown {
  position: relative;
  cursor: default;
  padding: 3px 10px;
  font-size: var(--font-size-base);
  border: 1px solid transparent;
}

.has-dropdown:hover {
  background: var(--win-select);
  color: var(--win-select-text);
}

.dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--win-face);
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  z-index: 1000;
  min-width: 120px;
  box-shadow: 2px 2px 0px var(--win-border-dark);
}

.has-dropdown:hover .dropdown { display: block; }

.dropdown-item {
  padding: 5px 24px 5px 20px;
  font-size: var(--font-size-base);
  white-space: nowrap;
  cursor: default;
  color: var(--win-text);
}

.dropdown-item:hover {
  background: var(--win-select);
  color: var(--win-select-text);
}

.menu-item:hover {
  background: var(--win-select);
  color: var(--win-select-text);
}

/* ── Main Window Layout ───────────────────────────────────── */
.main-window {
  display: flex;
  height: calc(100vh - 94px);
  background: var(--win-face);
  border-left:  2px solid var(--win-border-light);
  border-right: 2px solid var(--win-border-dark);
  overflow: hidden;
}

/* ── Sidebar ──────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--win-face);
  border-right: 2px solid var(--win-border-dark);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-section {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  border-bottom: 1px solid var(--win-border-mid);
}

.sidebar-header {
  background: var(--win-face-dark);
  padding: 6px 10px;
  font-weight: bold;
  font-size: var(--font-size-base);
  border-bottom: 1px solid var(--win-border-mid);
  flex-shrink: 0;
}

.sidebar-list {
  overflow-y: auto;
  flex: 1;
  background: var(--win-input-bg);
  border-top:  1px solid var(--win-border-dark);
  border-left: 1px solid var(--win-border-dark);
}

.kb-list-scroll { max-height: 220px; }

.sidebar-item {
  padding: 5px 12px;
  cursor: default;
  font-size: var(--font-size-base);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  border-bottom: 1px solid #e4e0d8;
}

.sidebar-item:hover  { background: #dde8f8; }
.sidebar-item.active { background: var(--win-select); color: var(--win-select-text); }

.sidebar-stats {
  padding: 8px 10px;
  font-size: var(--font-size-sm);
  color: #444;
  border-top: 1px solid var(--win-border-mid);
  line-height: 1.8;
  flex-shrink: 0;
}

/* ── Content Area ─────────────────────────────────────────── */
.content-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--win-face);
  min-width: 0;
}

/* ── Toolbar ──────────────────────────────────────────────── */
.toolbar {
  background: var(--win-face);
  padding: 8px 12px;
  border-bottom: 2px solid var(--win-border-dark);
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-shrink: 0;
}

.search-row, .filter-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-label {
  font-size: var(--font-size-base);
  white-space: nowrap;
  min-width: 60px;
}

.search-input {
  flex: 1;
  height: 26px;
  font-family: var(--font-ui);
  font-size: var(--font-size-base);
  padding: 3px 6px;
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  background: var(--win-input-bg);
  color: var(--win-text);
  outline: none;
}

.search-input:focus {
  outline: 1px dotted var(--win-border-dark);
  outline-offset: -3px;
}

.win-select {
  height: 26px;
  font-family: var(--font-ui);
  font-size: var(--font-size-base);
  padding: 0 4px;
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  background: var(--win-input-bg);
  min-width: 180px;
}

.win-btn {
  height: 26px;
  padding: 0 14px;
  font-family: var(--font-ui);
  font-size: var(--font-size-base);
  background: var(--win-face);
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  color: var(--win-text);
  white-space: nowrap;
}

.win-btn:active {
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  padding-top: 1px;
  padding-left: 15px;
}

/* ── Results Status ───────────────────────────────────────── */
.results-statusbar {
  background: var(--win-face);
  padding: 4px 12px;
  font-size: var(--font-size-sm);
  border-bottom: 1px solid var(--win-border-mid);
  flex-shrink: 0;
  color: #333;
}

/* ── Results List ─────────────────────────────────────────── */
.results-list {
  flex: 1;
  overflow-y: auto;
  background: var(--win-input-bg);
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  margin: 6px;
}

.result-item {
  padding: 10px 14px;
  border-bottom: 1px solid #d8d4cc;
  cursor: default;
}

.result-item:hover  { background: #dde8f8; }

.result-item:active {
  background: var(--win-select);
  color: var(--win-select-text);
}

.result-item:active .result-snippet,
.result-item:active .result-id,
.result-item:active .result-product {
  color: var(--win-select-text);
}

.result-header {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-bottom: 3px;
}

.result-id {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  color: #555;
  flex-shrink: 0;
}

.result-product {
  font-size: var(--font-size-sm);
  color: var(--result-product);
  font-style: italic;
}

.result-title {
  font-size: var(--font-size-lg);
  font-weight: bold;
  margin-bottom: 4px;
  color: var(--result-title);
  line-height: 1.3;
}

.result-item:hover .result-title { text-decoration: underline; }

.result-snippet {
  font-size: var(--font-size-sm);
  color: #333;
  line-height: 1.5;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

mark {
  background: var(--mark-bg);
  color: #000;
  padding: 0 2px;
}

.loading-msg, .no-results, .error-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  gap: 10px;
  color: #666;
  font-size: var(--font-size-base);
}

.loading-icon, .no-results-icon, .error-icon { font-size: 40px; }
.no-results-sub { font-size: var(--font-size-sm); color: #999; }
.error-box { color: #800000; }
.error-box code { font-family: var(--font-mono); font-size: var(--font-size-sm); }

.more-results-msg {
  padding: 10px;
  text-align: center;
  font-size: var(--font-size-sm);
  color: #666;
  background: #f0ede8;
  border-top: 1px solid #ccc;
}

/* ── Status Bar ───────────────────────────────────────────── */
.statusbar {
  display: flex;
  background: var(--win-face);
  border-top:    1px solid var(--win-border-mid);
  border-left:   2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-dark);
  height: 24px;
  flex-shrink: 0;
}

.statusbar-pane {
  padding: 3px 10px;
  font-size: var(--font-size-sm);
  border-right: 1px solid var(--win-border-mid);
  display: flex;
  align-items: center;
  border-top:    1px solid var(--win-border-dark);
  border-bottom: 1px solid var(--win-border-light);
  flex: 1;
}

.statusbar-pane:last-child {
  flex: 0 0 auto;
  border-right: none;
}

/* ── Article Page ─────────────────────────────────────────── */
.article-toolbar {
  background: var(--win-face);
  padding: 6px 10px;
  border-bottom: 2px solid var(--win-border-dark);
  display: flex;
  gap: 8px;
  border-left:  2px solid var(--win-border-light);
  border-right: 2px solid var(--win-border-dark);
}

.article-window {
  margin: 6px;
  background: var(--win-input-bg);
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  overflow-y: auto;
  height: calc(100vh - 98px);
}

.article-header {
  background: linear-gradient(to right, var(--win-highlight), var(--win-highlight-end));
  color: #fff;
  padding: 20px 28px 16px;
}

.article-id {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  opacity: 0.85;
  margin-bottom: 6px;
}

.article-product-tag {
  font-size: var(--font-size-sm);
  font-style: italic;
  opacity: 0.8;
  margin-bottom: 8px;
}

.article-title {
  font-size: 22px;
  font-weight: bold;
  font-family: var(--font-ui);
  line-height: 1.3;
}

.article-meta-bar {
  background: var(--win-face-dark);
  padding: 5px 28px;
  font-size: var(--font-size-sm);
  font-family: var(--font-mono);
  color: #555;
  border-bottom: 1px solid #bbb;
}

.article-body {
  padding: 28px 36px;
  font-size: var(--font-size-base);
  line-height: 1.7;
  max-width: 960px;
  color: #111;
}

.article-body h1,
.article-body h2,
.article-body h3 {
  margin: 20px 0 10px;
  font-family: var(--font-ui);
  color: var(--win-highlight);
}

.article-body h1 { font-size: 20px; border-bottom: 1px solid #ccc; padding-bottom: 5px; }
.article-body h2 { font-size: 17px; }
.article-body h3 { font-size: 15px; }

.article-body p  { margin-bottom: 12px; }
.article-body ul, .article-body ol { margin: 10px 0 10px 28px; }
.article-body li { margin-bottom: 6px; }

.article-body pre {
  background: #f5f3ef;
  border: 1px solid #ccc;
  border-left: 4px solid var(--win-highlight);
  padding: 14px;
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  overflow-x: auto;
  margin: 14px 0;
  line-height: 1.5;
}

.article-body code {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  background: #eeebe4;
  padding: 1px 4px;
}

.article-body pre code { background: none; padding: 0; }

.article-body a { color: var(--win-highlight); }
.article-body a:hover { color: #0000cc; text-decoration: underline; }

.article-body blockquote {
  border-left: 4px solid var(--win-border-mid);
  margin: 12px 0 12px 20px;
  padding-left: 14px;
  color: #555;
}

.error-msg { color: #800000; font-family: var(--font-mono); }

/* ── Scrollbar (Webkit) ───────────────────────────────────── */
::-webkit-scrollbar { width: 18px; height: 18px; }
::-webkit-scrollbar-track { background: var(--win-face); }
::-webkit-scrollbar-thumb {
  background: var(--win-face);
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
}
::-webkit-scrollbar-button {
  background: var(--win-face);
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  height: 18px;
  width: 18px;
  display: block;
}

/* ── Print ────────────────────────────────────────────────── */
@media print {
  .titlebar-outer, .menubar, .article-toolbar, .statusbar { display: none; }
  .article-window { height: auto; border: none; overflow: visible; }
  body { background: #fff; }
}

/* ── About Dialog ─────────────────────────────────────────── */
.about-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}

.about-dialog {
  background: var(--win-face);
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  width: 380px;
  box-shadow: 4px 4px 0px var(--win-border-dark);
}

.about-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(to right, var(--win-highlight), var(--win-highlight-end));
  color: var(--win-title-text);
  padding: 4px 6px;
  font-size: var(--font-size-base);
  font-weight: bold;
  min-height: 26px;
}

.about-body {
  padding: 24px 28px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-app-name {
  font-size: 18px;
  font-weight: bold;
  color: var(--win-highlight);
}

.about-version {
  font-size: var(--font-size-sm);
  color: #555;
  margin-top: -6px;
}

.about-divider {
  border: none;
  border-top: 1px solid var(--win-border-mid);
  margin: 4px 0;
}

.about-text {
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--win-text);
}

.about-link {
  font-size: var(--font-size-base);
}

.about-link a {
  color: var(--win-highlight);
  text-decoration: underline;
}

.about-link a:hover { color: #0000cc; }

.about-footer {
  padding: 12px 28px 16px;
  display: flex;
  justify-content: center;
  border-top: 1px solid var(--win-border-mid);
}

.about-ok { min-width: 80px; justify-content: center; }

/* ── Fake Taskbar ─────────────────────────────────────────── */
.fake-taskbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 36px;
  background: var(--win-face);
  border-top:  2px solid var(--win-border-light);
  display: flex;
  align-items: center;
  padding: 0 4px;
  gap: 4px;
  z-index: 99999;
  justify-content: space-between;
}

.fake-taskbar-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: var(--win-face);
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  font-size: var(--font-size-base);
  font-weight: bold;
  cursor: default;
  max-width: 280px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.fake-taskbar-clock {
  padding: 3px 10px;
  font-size: var(--font-size-base);
  border-top:    2px solid var(--win-border-dark);
  border-left:   2px solid var(--win-border-dark);
  border-bottom: 2px solid var(--win-border-light);
  border-right:  2px solid var(--win-border-light);
  min-width: 60px;
  text-align: center;
}

/* ── NT Desktop ───────────────────────────────────────────── */
.desktop {
  position: fixed;
  top: 0; left: 0; right: 0;
  bottom: 36px;
  padding: 16px;
  z-index: 50;
}

.desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 6px;
  cursor: default;
  width: 80px;
}

.desktop-icon:hover { background: rgba(255,255,255,0.15); }

.desktop-icon-img {
  font-size: 40px;
  line-height: 1;
}

.desktop-icon-label {
  color: #fff;
  font-size: 12px;
  text-align: center;
  text-shadow: 1px 1px 2px #000;
  font-family: var(--font-ui);
}

/* ── Game Window ──────────────────────────────────────────── */
.game-window {
  position: fixed;
  top: 60px;
  left: 100px;
  width: 640px;
  height: 480px;
  border-top:    2px solid var(--win-border-light);
  border-left:   2px solid var(--win-border-light);
  border-bottom: 2px solid var(--win-border-dark);
  border-right:  2px solid var(--win-border-dark);
  z-index: 1000;
  box-shadow: 4px 4px 0 var(--win-border-dark);
}

.game-titlebar {
  background: linear-gradient(to right, var(--win-highlight), var(--win-highlight-end));
  color: #fff;
  padding: 3px 6px;
  font-size: 13px;
  font-weight: bold;
  font-family: var(--font-ui);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 26px;
  cursor: move;
}