/* ============================================================
   Windows XP Luna Blue Theme - Technical Blog
   ============================================================ */

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

body, input, button, select, textarea {
  font-family: Tahoma, "MS Sans Serif", Arial, sans-serif;
  font-size: 13px;
}

/* ============================================================
   DESKTOP (Bliss Wallpaper Approximation)
   ============================================================ */

.xp-desktop {
  min-height: 100vh;
  padding: 8px 20px 48px;
  background:
    radial-gradient(ellipse 110% 45% at 50% 90%, #2a6830 0%, #3d8c40 35%, transparent 65%),
    radial-gradient(ellipse 70% 30% at 20% 82%, #358038 0%, transparent 55%),
    radial-gradient(ellipse 80% 32% at 75% 85%, #408040 0%, transparent 55%),
    linear-gradient(180deg,
      #1068b8 0%,
      #1888d8 18%,
      #40a8e8 36%,
      #80c8f0 42%,
      #a0d8f8 44%,
      #90d890 47%,
      #68c068 52%,
      #50a850 62%,
      #3a8838 100%
    );
  display: flex;
  flex-direction: column;
  align-items: center;
  overflow: hidden;
}

/* Desktop icons */
.xp-desktop-icons {
  position: fixed;
  top: 8px;
  left: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 0;
}

.xp-desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  padding: 4px;
  cursor: pointer;
  border-radius: 3px;
  user-select: none;
}

.xp-desktop-icon:hover {
  background: rgba(49, 106, 197, 0.5);
  outline: 1px dashed rgba(255,255,255,0.6);
}

.xp-desktop-icon .di-icon {
  font-size: 32px;
  margin-bottom: 2px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.xp-desktop-icon .di-icon img {
  width: 32px;
  height: 32px;
  image-rendering: pixelated;
}

.xp-desktop-icon .di-label {
  color: white;
  font-size: 13px;
  text-align: center;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.8);
  word-break: break-word;
}

/* ============================================================
   WINDOW CHROME
   ============================================================ */

.xp-window {
  width: 100%;
  max-width: 1240px;
  height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  border-radius: 8px 8px 0 0;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.6),
    0 4px 20px rgba(0,0,0,0.5),
    inset 0 0 0 1px rgba(255,255,255,0.15);
  overflow: hidden;
  position: relative;
}

.xp-window.maximized {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  max-width: 100vw;
  height: calc(100vh - 40px);
  border-radius: 0;
  z-index: 100;
}

/* Title Bar */
.xp-titlebar {
  height: 30px;
  min-height: 30px;
  background: linear-gradient(180deg,
    #5c9ee0 0%,
    #3c82d6 2%,
    #2068c8 8%,
    #1a58bc 44%,
    #1858bc 50%,
    #1e60c4 51%,
    #2a70d4 100%
  );
  display: flex;
  align-items: center;
  padding: 3px 4px 3px 6px;
  gap: 5px;
  user-select: none;
  cursor: default;
  border-radius: 8px 8px 0 0;
}

.xp-titlebar-icon {
  font-size: 15px;
  line-height: 1;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.xp-titlebar-text {
  flex: 1;
  color: white;
  font-size: 14px;
  font-weight: bold;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.6);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.xp-titlebar-buttons {
  display: flex;
  gap: 2px;
  align-items: center;
  flex-shrink: 0;
}

.xp-title-btn {
  width: 21px;
  height: 21px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: bold;
  color: white;
  text-shadow: 0 1px 1px rgba(0,0,0,0.5);
  border: 1px solid rgba(0,0,0,0.25);
}

.xp-title-btn:hover { filter: brightness(1.25); }
.xp-title-btn:active { filter: brightness(0.85); }

.xp-btn-min, .xp-btn-max {
  background: linear-gradient(180deg, #5a9edf 0%, #3578c8 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -1px 0 rgba(0,0,0,0.2);
}

.xp-btn-close {
  background: linear-gradient(180deg, #e86050 0%, #c02828 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.35), inset 0 -1px 0 rgba(0,0,0,0.3);
}

/* Menu Bar */
.xp-menubar {
  background: #ece9d8;
  display: flex;
  align-items: center;
  height: 22px;
  padding: 0 4px;
  border-bottom: 1px solid #c8c6ba;
  flex-shrink: 0;
}

.xp-menu-item {
  padding: 2px 8px;
  cursor: default;
  color: #000;
  border: 1px solid transparent;
  border-radius: 2px;
}

.xp-menu-item:hover {
  background: #316ac5;
  color: white;
  border-color: #1a4fa8;
}

/* Toolbar */
.xp-toolbar {
  background: #ece9d8;
  display: flex;
  align-items: center;
  height: 36px;
  padding: 2px 4px;
  border-bottom: 1px solid #c8c6ba;
  gap: 2px;
  flex-shrink: 0;
}

.xp-toolbar-separator {
  width: 1px;
  height: 24px;
  background: linear-gradient(to bottom, transparent, #a8a89c, transparent);
  margin: 0 3px;
}

.xp-toolbar-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
  background: transparent;
  border: 1px solid transparent;
  cursor: pointer;
  border-radius: 2px;
  min-width: 44px;
  height: 30px;
  gap: 1px;
}

.xp-toolbar-btn:hover {
  background: linear-gradient(180deg, #fffbe8, #ffd878);
  border-color: #c8a818;
}

.xp-toolbar-btn:active {
  background: linear-gradient(180deg, #ffd878, #ffb800);
  border-color: #a06000;
}

.xp-toolbar-btn.disabled {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.xp-toolbar-btn .btn-icon { font-size: 17px; line-height: 1; }
.xp-toolbar-btn .btn-label { font-size: 11px; color: #000; white-space: nowrap; }

/* Address Bar */
.xp-address-bar {
  display: flex;
  align-items: center;
  flex: 1;
  gap: 3px;
  margin-left: 4px;
}

.xp-address-label {
  font-size: 13px;
  white-space: nowrap;
  padding: 0 4px;
  border: 1px solid #c8c6ba;
  border-right: none;
  height: 22px;
  display: flex;
  align-items: center;
  background: #d8d5c8;
}

.xp-address-input {
  flex: 1;
  height: 22px;
  border: 2px inset #888;
  padding: 0 4px;
  background: white;
  font-size: 13px;
  outline: none;
}

.xp-go-btn {
  height: 22px;
  padding: 0 8px;
  background: linear-gradient(180deg, #f4f4ec, #d4d0c8);
  border: 2px outset #d4d0c8;
  cursor: pointer;
  font-size: 13px;
}

.xp-go-btn:active {
  border-style: inset;
}

/* Content Area */
.xp-content-area {
  display: flex;
  flex: 1;
  overflow: hidden;
  background: white;
}

/* Sidebar */
.xp-sidebar {
  width: 240px;
  min-width: 120px;
  background: #e8e4d8;
  border-right: 1px solid #c0bdb0;
  overflow-y: auto;
}

.xp-sidebar-panel {
  margin-bottom: 2px;
}

.xp-sidebar-panel-header {
  background: linear-gradient(90deg, #2460c0 0%, #4888d8 100%);
  color: white;
  font-weight: bold;
  padding: 4px 8px;
  cursor: default;
  font-size: 13px;
}

.xp-sidebar-panel-content {
  padding: 4px 0;
}

.xp-sidebar-link {
  display: block;
  padding: 3px 14px;
  color: #0000cc;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.xp-sidebar-link:hover { text-decoration: underline; }

.toc-link {
  display: block;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.9;
  color: #333;
  text-decoration: none;
  border-radius: 2px;
  padding-right: 4px;
  transition: background 0.1s, color 0.1s;
}

.toc-link:hover {
  background: #d0ccc0;
  text-decoration: none;
}

.toc-link.toc-active {
  color: #316ac5;
  font-weight: bold;
  background: #ccd8ee;
}

/* Sidebar resize handle */
.sidebar-resize-handle {
  width: 4px;
  cursor: col-resize;
  background: #c0bdb0;
  flex-shrink: 0;
  transition: background 0.15s;
}

.sidebar-resize-handle:hover,
.sidebar-resize-handle.dragging {
  background: #316ac5;
}

/* Main Content */
.xp-main-content {
  flex: 1;
  overflow-y: auto;
  padding: 24px 36px;
  background: white;
}

/* Status Bar */
.xp-statusbar {
  height: 22px;
  background: #ece9d8;
  border-top: 1px solid #c8c6ba;
  display: flex;
  align-items: center;
  padding: 0 4px;
  gap: 2px;
  flex-shrink: 0;
}

.xp-status-text {
  flex: 1;
  font-size: 13px;
  padding: 0 4px;
  border-right: 2px groove #c0c0c0;
  height: 100%;
  display: flex;
  align-items: center;
}

.xp-status-zone {
  font-size: 13px;
  padding: 0 12px;
}

/* ============================================================
   TASKBAR
   ============================================================ */

.xp-taskbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(180deg,
    #2878d8 0%,
    #1c60c0 8%,
    #1858b8 50%,
    #1c60c0 92%,
    #2878d8 100%
  );
  display: flex;
  align-items: center;
  padding: 0 2px;
  gap: 4px;
  border-top: 2px solid #5090d8;
  z-index: 9999;
  box-shadow: 0 -2px 8px rgba(0,0,0,0.3);
}

.xp-start-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 34px;
  padding: 0 12px 0 8px;
  background: linear-gradient(180deg, #6abf6a 0%, #3aaa3a 48%, #40b040 52%, #52c052 100%);
  border: 1px solid #2a7a2a;
  border-radius: 0 16px 16px 0;
  color: white;
  font-weight: bold;
  font-size: 13px;
  cursor: pointer;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
  box-shadow: 1px 0 6px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.3);
  letter-spacing: 0.5px;
  margin-right: 6px;
}

.xp-start-btn:hover { filter: brightness(1.1); }
.xp-start-btn:active { filter: brightness(0.9); }
.xp-start-icon { font-size: 17px; display:inline-flex; align-items:center; }
.xp-titlebar-icon img, .xp-start-icon img, .xp-taskbar-btn img, .xp-status-zone img, .sm-icon img, .xp-systray img {
  image-rendering: pixelated;
}

.xp-taskbar-tasks {
  display: flex;
  flex: 1;
  gap: 2px;
  overflow: hidden;
}

.xp-taskbar-btn {
  height: 28px;
  min-width: 120px;
  max-width: 220px;
  padding: 0 8px;
  background: linear-gradient(180deg, #3a78c8 0%, #2868b8 48%, #2060b0 52%, #2868b8 100%);
  border: 1px solid rgba(0,0,0,0.35);
  border-radius: 3px;
  color: white;
  font-size: 13px;
  font-weight: bold;
  cursor: pointer;
  text-align: left;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-shadow: 0 1px 1px rgba(0,0,0,0.4);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.2);
}

.xp-taskbar-btn.active {
  background: linear-gradient(180deg, #1a50a0 0%, #1e58a8 48%, #2868b8 52%, #1e58a8 100%);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.35);
}

.xp-systray {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  height: 30px;
  background: linear-gradient(180deg, #1048a0, #1c60c8);
  border: 1px solid rgba(0,0,0,0.3);
  border-radius: 3px;
  color: white;
  font-size: 13px;
}

/* ============================================================
   START MENU
   ============================================================ */

.xp-start-menu {
  position: fixed;
  bottom: 40px;
  left: 0;
  width: 380px;
  background: white;
  border: 2px solid #0054e3;
  border-radius: 8px 8px 0 0;
  box-shadow: 4px -4px 16px rgba(0,0,0,0.45);
  overflow: hidden;
  z-index: 10000;
}

.start-menu-header {
  background: linear-gradient(180deg, #1a52b8, #4a90e0);
  padding: 10px 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.start-menu-user-icon { font-size: 38px; }

.start-menu-username {
  color: white;
  font-weight: bold;
  font-size: 14px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.start-menu-body {
  display: flex;
  min-height: 260px;
}

.start-menu-left {
  flex: 1;
  border-right: 1px solid #d0cfc4;
  overflow-y: auto;
  padding: 6px 0;
}

.start-menu-right {
  width: 160px;
  background: #dde8f8;
  padding: 6px 0;
}

.start-menu-sep {
  height: 1px;
  background: #d0cfc4;
  margin: 4px 8px;
}

.start-menu-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  cursor: default;
  font-size: 13px;
}

.start-menu-item:hover {
  background: #316ac5;
  color: white;
}

.start-menu-item .sm-icon { font-size: 22px; width: 28px; text-align: center; }

.start-menu-footer {
  background: linear-gradient(90deg, #d0d8f0, #e0e8f8);
  padding: 5px 8px;
  display: flex;
  justify-content: flex-end;
  gap: 4px;
  border-top: 1px solid #b0b8d0;
}

.start-footer-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  cursor: default;
  border-radius: 3px;
  font-size: 13px;
}

.start-footer-btn:hover {
  background: #316ac5;
  color: white;
  outline: 1px solid #1a4fa8;
}

/* ============================================================
   BLOG STYLES (Article List)
   ============================================================ */

.blog-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  border-bottom: 2px solid #316ac5;
  margin-bottom: 16px;
  padding-bottom: 8px;
}

.blog-title {
  font-size: 20px;
  font-weight: bold;
  color: #0a246a;
}

.blog-subtitle {
  font-size: 13px;
  color: #666;
}

/* Article list — flat cards with XP accent */
.article-list { display: flex; flex-direction: column; gap: 8px; }

.article-item {
  display: block;
  text-decoration: none;
  color: inherit;
  background: #fff;
  border: 1px solid #d8d4c8;
  border-left: 3px solid #316ac5;
  padding: 12px 14px 10px;
  transition: border-left-color 0.1s, background 0.1s;
}

.article-item:hover {
  background: #f0f5fc;
  border-left-color: #0054e3;
}

.article-item-top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 5px;
}

.article-title-link {
  font-size: 15px;
  font-weight: bold;
  color: #0a246a;
  line-height: 1.3;
}

.article-item:hover .article-title-link { color: #0054e3; }

.article-date {
  color: #888;
  font-size: 12px;
  white-space: nowrap;
  flex-shrink: 0;
}

.article-summary {
  color: #555;
  font-size: 13px;
  line-height: 1.55;
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.tag {
  background: #e8f0fb;
  color: #1a3a7a;
  border: 1px solid #b8cef0;
  padding: 1px 7px;
  font-size: 11px;
  border-radius: 2px;
  white-space: nowrap;
}

#post-tags-panel .tag,
#tags-cloud .tag {
  font-size: 11px;
}

/* Pagination */
.xp-pagination {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 3px;
  margin-top: 20px;
  padding-top: 12px;
  border-top: 1px solid #c8c6ba;
}

.xp-page-btn {
  min-width: 26px;
  height: 24px;
  padding: 0 8px;
  background: linear-gradient(180deg, #f4f4ec, #d4d0c8);
  border: 2px outset #d4d0c8;
  cursor: pointer;
  font-size: 13px;
  border-radius: 2px;
}

.xp-page-btn:hover { background: linear-gradient(180deg, #fffbe8, #ffd878); border-color: #c8a818; }
.xp-page-btn:active { border-style: inset; }

.xp-page-btn.current {
  background: linear-gradient(180deg, #d4d0c8, #f4f4ec);
  border-style: inset;
  font-weight: bold;
}

.xp-page-btn.disabled {
  opacity: 0.45;
  cursor: default;
  pointer-events: none;
}

.pagination-info {
  margin-left: 8px;
  color: #666;
  font-size: 13px;
}

/* ============================================================
   POST CONTENT (Markdown Rendering)
   ============================================================ */

#post-container {
  padding: 0;
  max-width: 860px;
  margin: 0 auto;
}

.post-header {
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 2px solid #316ac5;
}

.post-title {
  font-size: 22px;
  font-weight: bold;
  color: #0a246a;
  margin-bottom: 8px;
}

.post-meta {
  display: flex;
  gap: 14px;
  color: #555;
  font-size: 13px;
  flex-wrap: wrap;
}

.post-meta-item {
  display: flex;
  align-items: center;
  gap: 3px;
}

.post-nav {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.post-nav-btn {
  padding: 3px 10px;
  background: linear-gradient(180deg, #f4f4ec, #d4d0c8);
  border: 2px outset #d4d0c8;
  cursor: pointer;
  font-size: 13px;
  color: #0000cc;
  text-decoration: none;
  border-radius: 2px;
}

.post-nav-btn:hover { background: linear-gradient(180deg, #fffbe8, #ffd878); }
.post-nav-btn:active { border-style: inset; }

.post-content {
  line-height: 1.7;
  color: #1a1a1a;
}

.post-content h1 {
  font-size: 22px;
  color: #0a246a;
  border-bottom: 2px solid #316ac5;
  padding-bottom: 6px;
  margin: 20px 0 14px;
}

.post-content h2 {
  font-size: 17px;
  color: #1a3878;
  margin: 20px 0 10px;
  border-left: 4px solid #316ac5;
  padding-left: 8px;
}

.post-content h3 {
  font-size: 14px;
  color: #2a4890;
  margin: 16px 0 8px;
}

.post-content h4, .post-content h5, .post-content h6 {
  font-size: 14px;
  color: #333;
  margin: 14px 0 6px;
}

.post-content p { margin-bottom: 12px; }

.post-content a { color: #0000cc; }
.post-content a:hover { text-decoration: underline; }

.post-content code {
  background: #f4f4ec;
  border: 1px solid #c8c6ba;
  padding: 1px 4px;
  font-family: "Courier New", "Lucida Console", monospace;
  font-size: 13px;
  border-radius: 2px;
}

.code-block-wrapper {
  position: relative;
}

.copy-btn {
  position: absolute;
  top: 6px;
  right: 8px;
  background: rgba(255,255,255,0.15);
  color: #cdd6f4;
  border: 1px solid rgba(255,255,255,0.25);
  padding: 2px 8px;
  font-size: 11px;
  border-radius: 2px;
  cursor: pointer;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.15s;
}

.code-block-wrapper:hover .copy-btn {
  opacity: 1;
}

.copy-btn:hover {
  background: rgba(255,255,255,0.25);
}

.post-content pre {
  background: #1e1e2e;
  color: #cdd6f4;
  border: 1px solid #444;
  padding: 14px 16px;
  overflow-x: auto;
  margin: 14px 0;
  border-radius: 2px;
  border-left: 4px solid #316ac5;
}

.post-content pre code {
  background: none;
  border: none;
  padding: 0;
  color: inherit;
  font-size: 14px;
  line-height: 1.6;
}

.post-content ul, .post-content ol {
  padding-left: 26px;
  margin-bottom: 12px;
}

.post-content li { margin-bottom: 4px; }

.post-content blockquote {
  border-left: 4px solid #316ac5;
  padding: 8px 14px;
  background: #f0f4fc;
  margin: 14px 0;
  color: #444;
  font-style: italic;
}

.post-content table {
  border-collapse: collapse;
  width: 100%;
  margin: 14px 0;
}

.post-content th {
  background: #d4d0c8;
  border: 1px solid #888;
  padding: 4px 10px;
  text-align: left;
}

.post-content td {
  border: 1px solid #c8c6ba;
  padding: 4px 10px;
}

.post-content tr:nth-child(even) td { background: #f4f4ec; }

.post-content img {
  max-width: 100%;
  border: 1px solid #c8c6ba;
}

.post-content hr {
  border: none;
  border-top: 2px groove #c8c6ba;
  margin: 20px 0;
}

/* ============================================================
   MISC / UTILITY
   ============================================================ */

.xp-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  color: #555;
  gap: 8px;
  font-size: 13px;
}

.xp-error {
  background: #fff0f0;
  border: 1px solid #e08080;
  border-left: 4px solid #c02020;
  padding: 12px 16px;
  color: #800000;
  border-radius: 2px;
  line-height: 1.6;
}

.xp-error small { color: #a00000; }

/* Scrollbar (WebKit) */
::-webkit-scrollbar { width: 16px; height: 16px; }
::-webkit-scrollbar-track { background: #d4d0c8; }
::-webkit-scrollbar-thumb {
  background: linear-gradient(90deg, #f4f4ec, #c8c4bc);
  border: 2px outset #d4d0c8;
}
::-webkit-scrollbar-thumb:hover { background: linear-gradient(90deg, #fff, #d0ccc4); }
::-webkit-scrollbar-button:single-button {
  background: linear-gradient(180deg, #f4f4ec, #d4d0c8);
  border: 2px outset #d4d0c8;
  height: 16px;
  width: 16px;
}

/* ============================================================
   MOBILE RESPONSIVE (≤ 768px)
   ============================================================ */

/* Mobile sidebar toggle button — hidden on desktop */
.mobile-sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 28px;
  background: linear-gradient(180deg, #f4f4ec, #d4d0c8);
  border: 2px outset #d4d0c8;
  cursor: pointer;
  font-size: 15px;
  border-radius: 2px;
  flex-shrink: 0;
}

.mobile-sidebar-toggle:hover {
  background: linear-gradient(180deg, #fffbe8, #ffd878);
  border-color: #c8a818;
}

@media (max-width: 768px) {
  /* Desktop: remove padding, fill screen */
  .xp-desktop {
    padding: 0 0 40px;
    align-items: stretch;
    overflow: clip; /* clip scroll without creating fixed-pos containing block */
  }

  /* Desktop icons: keep visible (show on wallpaper when window closed) */
  .xp-desktop-icons {
    z-index: 1;
  }

  /* Window sits above icons */
  .xp-window {
    z-index: 2;
  }

  /* Window: fill full width, no rounding */
  .xp-window {
    max-width: 100%;
    width: 100%;
    height: calc(100vh - 40px);
    border-radius: 0;
    margin: 0;
  }

  /* Hide min/max buttons — window is already full screen */
  .xp-btn-min,
  .xp-btn-max {
    display: none;
  }

  /* Title bar: smaller icon, tighter */
  .xp-titlebar {
    border-radius: 0;
  }

  /* Hide menu bar */
  .xp-menubar {
    display: none;
  }

  /* Toolbar: compact, show toggle button */
  .xp-toolbar {
    height: auto;
    padding: 3px 4px;
    gap: 3px;
    flex-wrap: nowrap;
  }

  /* Hide text labels on toolbar buttons */
  .xp-toolbar-btn .btn-label {
    display: none;
  }

  .xp-toolbar-btn {
    min-width: 32px;
    padding: 2px 4px;
  }

  /* Show mobile sidebar toggle */
  .mobile-sidebar-toggle {
    display: flex;
  }

  /* Address label: hide on mobile */
  .xp-address-label {
    display: none;
  }

  /* Content area: stack sidebar on top */
  .xp-content-area {
    flex-direction: column;
    overflow: hidden;
    position: relative;
  }

  /* Sidebar: collapsed by default, expands on toggle */
  .xp-sidebar {
    width: 100% !important;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    border-right: none;
    border-bottom: 1px solid #c0bdb0;
    transition: max-height 0.25s ease;
    flex-shrink: 0;
  }

  .xp-sidebar.mobile-open {
    max-height: 320px;
    overflow-y: auto;
  }

  /* Sidebar panels: horizontal scroll for tags */
  #tags-cloud {
    white-space: nowrap;
    overflow-x: auto;
    padding: 4px 8px;
  }

  /* Hide resize handle */
  .sidebar-resize-handle {
    display: none;
  }

  /* Main content: full width, less padding */
  .xp-main-content {
    flex: 1;
    padding: 14px 14px;
    overflow-y: auto;
    overflow-x: hidden;
  }

  /* Status bar: hide on mobile */
  .xp-statusbar {
    display: none;
  }

  /* Taskbar: hide task buttons, keep start + clock */
  .xp-taskbar-tasks {
    display: none;
  }

  /* Push systray to the right on mobile */
  .xp-systray {
    margin-left: auto;
  }

  /* Start menu: full width */
  .xp-start-menu {
    width: 100%;
    left: 0;
    right: 0;
    border-radius: 8px 8px 0 0;
  }

  /* Article list: date above title on small screens */
  .article-item-top {
    flex-direction: column;
    gap: 2px;
    align-items: flex-start;
  }

  .article-date {
    order: -1;
    font-size: 11px;
  }

  .article-title-link {
    font-size: 14px;
  }

  /* Post content: no max-width, smaller code */
  #post-container {
    max-width: 100%;
  }

  .post-title {
    font-size: 18px;
  }

  .post-content pre {
    font-size: 12px;
    padding: 10px 12px;
  }

  .post-content pre code {
    font-size: 12px;
  }

  /* Tables: allow horizontal scroll */
  .post-content table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* TOC links: slightly larger touch target */
  .toc-link {
    line-height: 2.2;
  }

  /* Pagination: wrap and center */
  .xp-pagination {
    justify-content: center;
  }

  /* Blog header: stack vertically on mobile */
  .blog-header {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }

  .blog-title {
    font-size: 16px;
    white-space: nowrap;
  }

  .blog-subtitle {
    font-size: 11px;
  }

  /* Scrollbar: thinner on mobile */
  ::-webkit-scrollbar { width: 4px; height: 4px; }
  ::-webkit-scrollbar-button:single-button { display: none; }
}