/* ============================================
   zxzx.app — Calm Paper-Retro Desktop Theme
   ============================================ */

@font-face {
  font-family: 'MS Sans Serif';
  src: local('MS Sans Serif'), local('Microsoft Sans Serif'), local('Tahoma');
}

/* ============================================
   ZXZX 2026 DESIGN PASS — Utility Desktop polish
   ============================================ */

#desktop::after {
  content: "FREE WEB TOOLS / LOCAL-FIRST WORKBENCH";
  position: absolute;
  right: 18px;
  top: 58px;
  color: rgba(23, 23, 23, 0.26);
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 0;
  pointer-events: none;
  z-index: 0;
}

.desktop-icon {
  border: 1px solid transparent;
  border-radius: 4px;
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
}

.desktop-icon:hover,
.desktop-icon:focus {
  background: rgba(255, 250, 240, 0.78);
  border-color: var(--line);
  transform: translateY(-1px);
}

.category-label {
  color: #173768;
  background: rgba(255, 250, 240, 0.86);
  border: 1px solid var(--line);
  padding: 3px 8px;
  font-family: 'Share Tech Mono', monospace;
}

.window {
  box-shadow: 10px 10px 0 rgba(33, 79, 150, 0.16), 0 18px 42px rgba(23, 23, 23, 0.16);
}

.window-content {
  background:
    linear-gradient(rgba(255,255,255,.75), rgba(255,255,255,.75)),
    repeating-linear-gradient(0deg, transparent 0 31px, rgba(215,205,185,.45) 32px);
}

.tool-form h2,
.tool-form h3 {
  letter-spacing: 0;
}

:root {
  --ink: #171717;
  --paper: #fffaf0;
  --soft: #f4efe3;
  --line: #d7cdb9;
  --blue: #214f96;
  --green: #167a57;
  --red: #b43b35;
  --yellow: #ffe08a;
  --win-bg: #f4efe3;
  --win-title: #214f96;
  --win-title-text: #ffffff;
  --win-border-light: #fffaf0;
  --win-border-dark: #d7cdb9;
  --win-border-darker: #b8ad99;
  --win-desktop: #f4efe3;
  --taskbar-bg: #f4efe3;
  --text: #171717;
  --radius: 0px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }

body {
  font-family: 'Inter', 'MS Sans Serif', Tahoma, sans-serif;
  background: var(--soft);
  color: var(--text);
  cursor: default;
}

/* ============================================
   DESKTOP BACKGROUND (Paper-Retro)
   ============================================ */

#desktop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 36px;
  overflow: hidden;
  background: var(--soft);
}

.desktop-bg {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    /* Subtle grid lines */
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 40px,
      var(--line) 40px,
      var(--line) 41px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 40px,
      var(--line) 40px,
      var(--line) 41px
    ),
    /* Soft paper base */
    var(--soft);
  z-index: 0;
  opacity: 0.4;
}

/* ============================================
   DESKTOP TABS (Windows 95 style)
   ============================================ */
.desktop-tabs {
  position: absolute;
  top: 12px;
  left: 16px;
  right: 16px;
  display: flex;
  gap: 2px;
  border-bottom: 2px solid var(--win-border-dark);
  padding-bottom: 0px;
  z-index: 5;
  user-select: none;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none; /* Firefox */
}
.desktop-tabs::-webkit-scrollbar {
  display: none; /* Chrome, Safari, Opera */
}

.tab-item {
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) transparent var(--win-border-light);
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  padding: 4px 10px;
  font-size: 11px;
  font-family: inherit;
  color: #000;
  cursor: pointer;
  margin-bottom: -2px; /* overlap border */
  position: relative;
  z-index: 1;
}

.tab-item:hover {
  background: #e6e6e6;
}

.tab-item.active {
  background: var(--win-bg);
  border-bottom: 2px solid var(--win-bg);
  font-weight: bold;
  padding-bottom: 6px;
  margin-top: -2px;
  z-index: 2;
}

/* ============================================
   DESKTOP ICONS
   ============================================ */

.desktop-icons {
  position: absolute;
  top: 52px; left: 16px;
  bottom: 0; right: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
  overflow-y: auto;
  z-index: 1;
}

.tool-launcher {
  display: none;
  position: absolute;
  top: 52px;
  right: 16px;
  bottom: 12px;
  width: 320px;
  z-index: 6;
  overflow-y: auto;
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  background: rgba(255, 250, 240, 0.96);
  box-shadow: 8px 8px 0 rgba(33, 79, 150, 0.14);
  padding: 12px;
}

.launcher-title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  border-bottom: 2px solid var(--line);
  padding-bottom: 8px;
  margin-bottom: 10px;
  font-weight: 800;
}

.launcher-title small {
  color: #5f6368;
  font-size: 11px;
  font-weight: 700;
}

.launcher-search input {
  width: 100%;
  min-height: 36px;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  background: #fff;
  padding: 0 10px;
  font-size: 13px;
  outline: none;
}

.launcher-section {
  margin-top: 12px;
  display: grid;
  gap: 6px;
}

.launcher-section h2 {
  margin: 4px 0 0;
  color: #173768;
  font-size: 12px;
  text-transform: uppercase;
}

.launcher-section button {
  min-height: 34px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  text-align: left;
  padding: 0 10px;
  cursor: pointer;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.tool-icon {
  width: 1.35em;
  display: inline-block;
  text-align: center;
  flex-shrink: 0;
}

.launcher-section button:hover,
.launcher-section button:focus {
  background: var(--win-title);
  color: var(--win-title-text);
  outline: none;
}

.launcher-section button.is-hidden {
  display: none;
}

/* ============================================
   OS SHUTDOWN SIMULATION
   ============================================ */
.shutdown-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #000;
  /* Checkerboard dither pattern */
  background-image: 
    radial-gradient(rgba(0, 0, 0, 0.75) 25%, transparent 25%),
    radial-gradient(rgba(0, 0, 0, 0.75) 25%, transparent 25%);
  background-size: 4px 4px;
  background-position: 0 0, 2px 2px;
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
}

.shutdown-dialog {
  width: 320px;
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  color: #000;
  z-index: 9999;
  padding: 2px;
}

.shutdown-dialog .window-titlebar {
  background: var(--win-title);
  color: var(--win-title-text);
  padding: 3px 4px;
  font-weight: bold;
  font-size: 11px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.shutdown-dialog-content {
  padding: 12px;
  font-size: 11px;
  display: flex;
  gap: 12px;
}

.shutdown-dialog-icon {
  font-size: 32px;
  user-select: none;
}

.shutdown-dialog-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.shutdown-dialog-main p {
  margin-bottom: 8px;
  font-weight: bold;
}

.shutdown-option {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.shutdown-option input[type="radio"] {
  margin: 0;
}

.shutdown-dialog-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  padding: 0 12px 12px 12px;
}

.shutdown-dialog-buttons button {
  min-width: 75px;
}

/* Shutdown Screens */
.shutdown-screen-saving, .shutdown-screen-safe {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: #000;
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: #c0c0c0;
  font-family: 'Share Tech Mono', monospace;
  font-size: 2.2rem;
  text-align: center;
  padding: 20px;
  user-select: none;
}

.shutdown-screen-safe {
  color: #ff8c00; /* Classic orange */
}

.shutdown-screen-safe p {
  margin-bottom: 24px;
  text-shadow: 0 0 10px rgba(255, 140, 0, 0.5);
}

.reboot-btn {
  background: #222;
  color: #ff8c00;
  border: 2px solid #ff8c00;
  padding: 8px 16px;
  font-family: inherit;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(255, 140, 0, 0.3);
}

.reboot-btn:hover {
  background: #ff8c00;
  color: #000;
}


.desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 80px;
  padding: 8px 4px;
  cursor: pointer;
  text-align: center;
  border: 1px solid transparent;
  transition: none;
}
.desktop-icon:hover {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.12);
}
.desktop-icon:active {
  background: rgba(0,0,0,0.1);
}
.desktop-icon .icon {
  font-size: 2rem;
  line-height: 1;
  filter: none;
  pointer-events: none;
}
.desktop-icon .label {
  font-size: 11px;
  color: var(--ink);
  text-shadow: none;
  word-break: break-word;
  line-height: 1.2;
  pointer-events: none;
}

.category-label {
  width: 100%;
  color: rgba(0,0,0,0.4);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 12px 0 4px 4px;
  text-shadow: none;
  pointer-events: none;
}

/* ============================================
   WINDOW FRAME
   ============================================ */

.window-container {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  pointer-events: none;
}

.window {
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  box-shadow: 2px 2px 10px rgba(0,0,0,0.5);
  display: flex;
  flex-direction: column;
  min-width: 480px;
  max-width: 90vw;
  max-height: 85vh;
  pointer-events: auto;
  position: relative;
}

.window-titlebar {
  background: var(--win-title);
  color: var(--win-title-text);
  padding: 3px 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: bold;
  white-space: nowrap;
  user-select: none;
  cursor: move;
  touch-action: none;
}
.window-titlebar .icon { font-size: 14px; }
.window-titlebar .title { flex: 1; overflow: hidden; text-overflow: ellipsis; }
.window-titlebar .window-controls { display: flex; gap: 2px; }
.window-titlebar .window-btn {
  width: 16px;
  height: 14px;
  background: var(--win-bg);
  border: 1px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  cursor: pointer;
  padding: 0;
  line-height: 1;
  color: #000;
  font-family: 'MS Sans Serif', sans-serif;
}
.window-titlebar .window-btn:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}
.window-titlebar .close-btn {
  font-weight: bold;
  background: #c0c0c0;
}

.window-content {
  padding: 10px;
  overflow-y: auto;
  flex: 1;
  min-height: 200px;
  font-size: 12px;
  color: #171717;
  background: var(--paper);
  margin: 4px;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}

.window-statusbar {
  padding: 2px 6px;
  background: var(--win-bg);
  border-top: 1px solid var(--win-border-dark);
  font-size: 11px;
  color: #444;
  display: flex;
  justify-content: space-between;
}

/* ============================================
   TOOL CONTENT (inside window)
   ============================================ */

.tool-form h3 {
  font-size: 14px;
  font-weight: bold;
  margin-bottom: 8px;
  color: #000;
}
.tool-form p.desc {
  color: #555;
  font-size: 12px;
  margin-bottom: 10px;
}

.file-drop {
  border: 2px dashed #aaa;
  padding: 24px 12px;
  text-align: center;
  cursor: pointer;
  background: #f8f8f8;
  margin: 8px 0;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--blue);
  background: #eef3f9;
}
.file-drop .icon { font-size: 1.5rem; }
.file-drop .text { font-weight: 600; font-size: 12px; color: #333; }
.file-drop .hint { font-size: 11px; color: #888; margin-top: 2px; }
.file-drop input[type="file"] { display: none; }
.file-drop .file-info { margin-top: 6px; font-size: 11px; color: #666; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 8px;
}
.form-group label {
  font-size: 11px;
  font-weight: 600;
  color: #333;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
  padding: 4px 6px;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  font-size: 12px;
  font-family: 'MS Sans Serif', sans-serif;
  background: #fff;
  outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--win-title);
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-row { display: flex; gap: 8px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 80px; }
.hint-text { font-size: 10px; color: #888; }

/* Win95 Buttons */
.btn {
  padding: 4px 16px;
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  font-size: 12px;
  font-family: 'MS Sans Serif', sans-serif;
  cursor: pointer;
  color: #000;
  display: inline-block;
  text-decoration: none;
  text-align: center;
  box-shadow: none;
  min-width: 60px;
}
.btn:hover { background: #d4d4d4; }
.btn:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  padding: 5px 15px 3px 17px;
}
.btn:disabled {
  opacity: 0.5;
  cursor: default;
  border-color: #c0c0c0 #c0c0c0 #c0c0c0 #c0c0c0;
}
.btn-primary {
  background: var(--win-title);
  color: white;
  border-color: var(--blue) var(--win-border-dark) var(--win-border-dark) var(--blue);
}
.btn-primary:active {
  background: #1a3d72;
}

.btn-secondary {
  background: var(--win-bg);
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0;
}
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  color: #333;
  cursor: pointer;
}

/* Result */
.result-box {
  margin-top: 8px;
  padding: 8px;
  background: #f0fdf4;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  font-size: 12px;
}
.result-box.error { background: #fef2f2; }
.result-box .preview {
  max-width: 100%;
  max-height: 250px;
  margin: 8px 0;
  border: 1px solid #ccc;
}
.result-box .actions { display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap; }

/* Notices */
.warning-notice {
  padding: 6px 10px;
  background: #fef3c7;
  border: 1px solid #fde68a;
  font-size: 11px;
  color: #92400e;
  margin: 6px 0;
}
.error-notice {
  padding: 6px 10px;
  background: #fee2e2;
  border: 1px solid #fecaca;
  font-size: 11px;
}

/* Spinner */
.spinner {
  display: inline-block;
  width: 14px; height: 14px;
  border: 2px solid #ccc;
  border-top-color: var(--win-title);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Output Box */
.output-box {
  background: #1e293b;
  color: #e2e8f0;
  padding: 10px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 13px;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 200px;
  overflow-y: auto;
  margin: 6px 0;
}
.copy-btn {
  padding: 3px 10px;
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  font-size: 11px;
  cursor: pointer;
  font-family: 'MS Sans Serif', sans-serif;
}
.copy-btn:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}

/* Stats Table */
.stats-table { width: 100%; border-collapse: collapse; font-size: 12px; }
.stats-table td { padding: 4px 8px; border: 1px solid #ccc; color: #333; }
.stats-table td:last-child { text-align: right; font-weight: bold; }

/* Diff */
.diff-view { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.diff-view .diff-panel { border: 2px solid; border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark); }
.diff-view .diff-header { background: #ddd; padding: 4px 8px; font-weight: 600; font-size: 11px; border-bottom: 1px solid #999; }
.diff-view .diff-content { padding: 6px; font-family: monospace; font-size: 11px; white-space: pre-wrap; max-height: 200px; overflow-y: auto; background: #fff; }
.diff-added { background: #dcfce7; }
.diff-removed { background: #fee2e2; }

/* Page Content (FAQ, About, Privacy, Contact) in Window */
.page-content { padding: 4px; }
.page-content h1 { font-size: 16px; font-weight: bold; margin-bottom: 10px; color: #000; }
.page-content p { margin-bottom: 8px; font-size: 12px; line-height: 1.5; color: #333; }
.page-desc { color: #666; font-size: 12px; margin-bottom: 14px; }

/* FAQ */
.faq-item { border: 1px solid #999; margin-bottom: 6px; }
.faq-item summary { padding: 6px 10px; cursor: pointer; font-weight: 600; font-size: 12px; background: #eee; }
.faq-item summary:hover { background: #ddd; }
.faq-item[open] summary { border-bottom: 1px solid #999; }
.faq-item p { padding: 6px 10px; font-size: 12px; }

/* Contact */
.contact-email { margin: 10px 0; }
.contact-email a { color: var(--win-title); font-weight: 600; }

/* ============================================
   TASKBAR (Win95 style)
   ============================================ */

#taskbar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 36px;
  background: var(--taskbar-bg);
  border-top: 2px solid var(--win-border-light);
  display: flex;
  align-items: center;
  padding: 2px 4px;
  z-index: 100;
  gap: 4px;
}

.start-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: var(--taskbar-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  font-family: 'MS Sans Serif', sans-serif;
  font-size: 11px;
  font-weight: bold;
  cursor: pointer;
  height: 28px;
  color: #000;
}
.start-btn:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}
.start-btn .icon { font-size: 16px; }

.taskbar-divider {
  width: 2px;
  height: 24px;
  background: var(--win-border-dark);
  border-right: 1px solid var(--win-border-light);
  margin: 0 2px;
}

.taskbar-items {
  flex: 1;
  display: flex;
  gap: 2px;
  overflow: hidden;
  align-items: center;
}

.taskbar-item {
  padding: 2px 10px;
  background: var(--taskbar-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 140px;
  color: #000;
  height: 24px;
  display: flex;
  align-items: center;
}
.taskbar-item.active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  background: #e0e0e0;
  font-weight: bold;
}
.taskbar-item:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}

.taskbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.lang-icon {
  font-size: 14px;
  color: #000;
  line-height: 1;
}

.lang-select {
  padding: 2px 4px;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  font-size: 11px;
  background: #fff;
  font-family: 'MS Sans Serif', sans-serif;
  height: 22px;
  cursor: pointer;
}

.taskbar-clock {
  padding: 0 6px;
  font-size: 11px;
  color: #000;
  min-width: 50px;
  text-align: center;
  font-family: 'Share Tech Mono', 'MS Sans Serif', monospace;
}

/* ============================================
   ADS (hidden by default, shown in window)
   ============================================ */

.ad-banner {
  min-height: 60px;
  background: #f5f5f5;
  border: 1px solid #ccc;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 8px 0;
  overflow: hidden;
}

/* ============================================
   STICKY NOTE
   ============================================ */

/* AdSense desktop ad placeholder */
.ad-desktop {
  display: none;
  position: absolute;
  bottom: 20px;
  left: 16px;
  width: 300px;
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  box-shadow: 2px 2px 8px rgba(0,0,0,0.3);
  z-index: 5;
}
.ad-titlebar {
  background: var(--win-title);
  color: var(--win-title-text);
  padding: 2px 4px;
  font-size: 11px;
  font-weight: bold;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
}
.ad-close {
  width: 16px;
  height: 14px;
  background: var(--win-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  font-size: 10px;
  line-height: 1;
  padding: 0;
  cursor: pointer;
  color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ad-close:active {
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
}
.ad-body {
  padding: 6px;
  min-height: 60px;
  background: #fff;
  text-align: center;
  font-size: 11px;
  color: #888;
}

.sticky-note {
  position: absolute;
  bottom: 20px;
  right: 20px;
  width: 220px;
  background: #fffbc9;
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  box-shadow: 2px 2px 8px rgba(0,0,0,0.3);
  z-index: 5;
  transform: rotate(2deg);
}
.sticky-titlebar {
  background: #f5e64a;
  padding: 3px 6px;
  font-size: 11px;
  font-weight: bold;
  color: #333;
  cursor: move;
  touch-action: none;
  border-bottom: 1px solid #d4c832;
}
.sticky-content {
  padding: 8px 10px;
  font-size: 12px;
  color: #444;
  line-height: 1.5;
  min-height: 40px;
}

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

.start-menu {
  display: none;
  position: fixed;
  bottom: 38px;
  left: 4px;
  background: var(--taskbar-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  z-index: 200;
  min-width: 200px;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  box-shadow: 2px 2px 8px rgba(0,0,0,0.4);
}
.start-menu.open { display: flex; }

.start-sidebar {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  background: var(--blue);
  color: white;
  padding: 8px 4px;
  font-size: 20px;
  font-weight: bold;
  letter-spacing: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
}

.start-items {
  flex: 1;
  padding: 4px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.start-item {
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  color: #000;
  border: 1px solid transparent;
  position: relative;
}
.start-item:hover {
  background: var(--win-title);
  color: white;
  border-color: var(--win-title);
}
.start-item .icon { font-size: 16px; width: 20px; text-align: center; }
.start-item .arrow { margin-left: auto; font-size: 10px; }
.start-divider {
  height: 2px;
  background: var(--win-border-dark);
  border-bottom: 1px solid var(--win-border-light);
  margin: 4px 0;
}

.start-search {
  padding: 4px;
}
.start-search input {
  width: 100%;
  padding: 4px 6px;
  border: 2px solid;
  border-color: var(--win-border-dark) var(--win-border-light) var(--win-border-light) var(--win-border-dark);
  font-size: 12px;
  font-family: 'MS Sans Serif', sans-serif;
  outline: none;
}
.start-search input:focus {
  border-color: var(--win-title);
}

/* Submenu */
.start-submenu {
  display: none;
  position: absolute;
  left: 100%;
  top: 0;
  background: var(--taskbar-bg);
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
  min-width: 180px;
  padding: 4px;
  z-index: 201;
}
.start-item:hover .start-submenu { display: block; }

/* ============================================
   SCROLLBAR
   ============================================ */

.window-content::-webkit-scrollbar { width: 14px; }
.window-content::-webkit-scrollbar-track { background: #c0c0c0; }
.window-content::-webkit-scrollbar-thumb {
  background: #c0c0c0;
  border: 2px solid;
  border-color: var(--win-border-light) var(--win-border-dark) var(--win-border-dark) var(--win-border-light);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 600px) {
  #desktop {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
  }
  .window { min-width: auto; width: 95vw; max-width: 95vw; max-height: 80vh; }
  .desktop-tabs { top: 6px; left: 8px; right: 8px; }
  .tool-launcher { display: none; }
  .desktop-icons { position: relative; top: auto; left: auto; right: auto; bottom: auto; gap: 4px; flex-shrink: 0; padding: 0 8px 48px; }
  .desktop-icon { width: 64px; padding: 4px 2px; }
  .desktop-icon .icon { font-size: 1.5rem; }
  .desktop-icon .label { font-size: 10px; }
  .diff-view { grid-template-columns: 1fr; }
  .form-row { flex-direction: column; }
  .start-text { display: none; }

  .ad-desktop {
    display: none;
    position: relative;
    bottom: auto;
    left: auto;
    width: 100%;
    margin: 8px 0 0 0;
    flex-shrink: 0;
  }
  .sticky-note {
    position: relative;
    bottom: auto;
    right: auto;
    width: 100%;
    margin: 8px 0 0 0;
    transform: none;
    flex-shrink: 0;
  }
}