/* ═══════════════════════════════════════════════════════════════════
   uOS Demo — Static Desktop Preview
   ═══════════════════════════════════════════════════════════════════ */
[hidden] { display: none !important; }

:root {
  --demo-bg: #0b141a;
  --demo-panel: #111b21;
  --demo-card: #202c33;
  --demo-text: #e9edef;
  --demo-text-muted: #8696a0;
  --demo-accent: #8b5cf6;
  --demo-border: #2a3942;
  --demo-radius: 16px;
  --demo-font: 'Inter', system-ui, -apple-system, sans-serif;
  --demo-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: hidden; font-family: var(--demo-font); color: var(--demo-text); }

/* ═══ DESKTOP ═══ */
.desktop {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  background: var(--demo-bg);
}

/* ═══ WALLPAPER ═══ */
.desktop-wallpaper {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: background-image 0.5s ease;
}

[data-platform="personal"] .desktop-wallpaper {
  background-image: url('/assets/wallpapers/beach.jpg');
}
[data-platform="nonprofit"] .desktop-wallpaper {
  background-image: url('/assets/wallpapers/valley.jpg');
}
[data-platform="business"] .desktop-wallpaper {
  background-image: url('/assets/wallpapers/city.jpg');
}

/* ═══ CLOCK ═══ */
.desktop-clock {
  position: fixed;
  top: 28px;
  left: 32px;
  z-index: 5;
  pointer-events: none;
  user-select: none;
}
.clock-time {
  font-size: 3.5rem;
  font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5), 0 0 40px rgba(0,0,0,0.3);
  line-height: 1;
}
.clock-date {
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
  margin-top: 4px;
}

/* ═══ DEMO BANNER ═══ */
.demo-banner {
  position: fixed;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  border-radius: 24px;
  background: rgba(17, 27, 33, 0.85);
  backdrop-filter: blur(12px);
  border: 1px solid var(--demo-border);
  font-size: 13px;
  color: var(--demo-text-muted);
  white-space: nowrap;
}
.demo-banner-btn {
  padding: 4px 14px;
  border-radius: 14px;
  background: var(--demo-accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.15s;
}
@media (hover: hover) {
  .demo-banner-btn:hover { opacity: 0.85; }
}

/* ═══ DESKTOP ICONS ═══ */
.desktop-icons {
  position: fixed;
  top: 16px;
  right: 24px;
  bottom: 90px;
  left: 24px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  align-content: flex-end;
  gap: 8px;
  pointer-events: none;
}
.desktop-icon {
  width: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 4px;
  border-radius: 12px;
  cursor: pointer;
  pointer-events: auto;
  transition: transform 0.15s, background 0.15s;
  text-decoration: none;
}
@media (hover: hover) {
  .desktop-icon:hover {
    background: rgba(255,255,255,0.08);
    transform: scale(1.05);
  }
}
.desktop-icon img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.desktop-icon span {
  font-size: 0.65rem;
  font-weight: 500;
  color: #fff;
  text-shadow: 0 1px 4px rgba(0,0,0,0.7);
  text-align: center;
  max-width: 68px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ═══ SYSTEM BAR ═══ */
.system-bar {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.platform-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 12px;
  border-radius: 12px;
  background: rgba(17, 27, 33, 0.7);
  backdrop-filter: blur(8px);
  font-size: 11px;
  font-weight: 600;
  color: var(--demo-text-muted);
  border: 1px solid rgba(255,255,255,0.06);
}
.platform-indicator img {
  border-radius: 3px;
}
.system-bar-inner {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 16px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
}
.sbar-btn {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: #1a1a2e;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.15s, transform 0.15s;
  font-size: 13px;
  gap: 4px;
}
@media (hover: hover) {
  .sbar-btn:hover { background: rgba(139, 92, 246, 0.1); transform: scale(1.05); }
}
.sbar-btn img {
  border-radius: 4px;
}
.sbar-launcher img {
  border-radius: 6px;
}
.sbar-divider {
  width: 1px;
  height: 24px;
  background: rgba(0,0,0,0.1);
  margin: 0 4px;
}
.lang-code {
  font-size: 9px;
  font-weight: 700;
}

/* Demo Note */
.demo-note {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 45;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 10px;
  background: rgba(17, 27, 33, 0.85);
  backdrop-filter: blur(10px);
  border: 1px solid var(--demo-border);
  font-size: 11px;
  color: var(--demo-text-muted);
  max-width: 90vw;
}
.demo-note[hidden] { display: none; }
.demo-note-close {
  border: none;
  background: transparent;
  color: var(--demo-text-muted);
  cursor: pointer;
  font-size: 14px;
  padding: 2px;
  line-height: 1;
  flex-shrink: 0;
}

/* ═══ MODALS ═══ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.15s ease;
}
.modal-backdrop[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-card {
  background: var(--demo-panel);
  border: 1px solid var(--demo-border);
  border-radius: var(--demo-radius);
  box-shadow: var(--demo-shadow);
  max-width: 90vw;
  max-height: 80vh;
  overflow-y: auto;
  animation: scaleIn 0.15s ease;
}
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--demo-border);
  font-weight: 700;
  font-size: 16px;
}
.modal-close {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--demo-text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (hover: hover) {
  .modal-close:hover { background: rgba(255,60,60,0.15); color: #ff4444; }
}

/* App Launcher Modal */
.app-launcher-card {
  width: 480px;
}
.app-launcher-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  padding: 20px;
}
.launcher-app {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 12px 4px;
  border-radius: 12px;
  cursor: pointer;
  border: none;
  background: transparent;
  color: var(--demo-text);
  transition: background 0.15s;
}
@media (hover: hover) {
  .launcher-app:hover { background: rgba(139, 92, 246, 0.1); }
}
.launcher-app img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}
.launcher-app span {
  font-size: 10px;
  font-weight: 500;
  text-align: center;
}

/* Platform Switcher Modal */
.platform-card {
  width: 360px;
}
.platform-list {
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.platform-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--demo-text);
  cursor: pointer;
  width: 100%;
  text-align: left;
  transition: background 0.15s;
}
@media (hover: hover) {
  .platform-row:hover { background: rgba(139, 92, 246, 0.1); }
}
.platform-row.active { background: rgba(139, 92, 246, 0.08); }
.platform-avatar {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
}
.platform-info { flex: 1; }
.platform-name { font-size: 14px; font-weight: 600; }
.platform-role { font-size: 11px; color: var(--demo-text-muted); margin-top: 2px; }
.platform-badge {
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  background: rgba(139, 92, 246, 0.15);
  color: var(--demo-accent);
}
.platform-badge[hidden] { display: none; }

/* Language Modal */
.lang-card {
  width: 320px;
}
.lang-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  padding: 16px;
}
.lang-grid button {
  padding: 8px;
  border: none;
  background: transparent;
  color: var(--demo-text-muted);
  font-size: 12px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  transition: background 0.1s;
}
@media (hover: hover) {
  .lang-grid button:hover { background: rgba(255,255,255,0.06); color: var(--demo-text); }
}
.lang-grid button.active { background: var(--demo-accent); color: #fff; }

/* Contact Form Modal */
.contact-card {
  width: 400px;
}
.contact-form {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.contact-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
}
.contact-label {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.contact-label span {
  font-size: 12px;
  font-weight: 500;
  color: var(--demo-text-muted);
}
.contact-input, .contact-textarea {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--demo-border);
  background: var(--demo-card);
  color: var(--demo-text);
  font-family: var(--demo-font);
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
.contact-input:focus, .contact-textarea:focus {
  border-color: var(--demo-accent);
}
.contact-textarea {
  resize: vertical;
  min-height: 80px;
}
.contact-btn {
  padding: 10px 20px;
  border-radius: 10px;
  border: none;
  background: var(--demo-accent);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  font-family: var(--demo-font);
}
@media (hover: hover) {
  .contact-btn:hover { opacity: 0.85; }
}
.contact-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}
.contact-error {
  font-size: 12px;
  color: #ef4444;
  margin: 0;
}
.contact-success {
  padding: 40px 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.contact-success-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
}
.contact-success p {
  font-size: 14px;
  color: var(--demo-text);
}

/* ═══ WINDOWS ═══ */
.windows-container {
  position: fixed;
  inset: 0;
  z-index: 35;
  pointer-events: none;
}
.demo-window {
  position: absolute;
  pointer-events: auto;
  border-radius: var(--demo-radius);
  background: var(--demo-panel);
  border: 1px solid var(--demo-border);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4), 0 24px 64px rgba(0,0,0,0.3);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: windowOpen 0.2s ease-out;
}
@keyframes windowOpen {
  from { opacity: 0; transform: scale(0.95) translateY(8px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.demo-window-bar {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--demo-card);
  border-bottom: 1px solid var(--demo-border);
  gap: 10px;
  flex-shrink: 0;
  cursor: default;
}
.demo-window-bar img {
  width: 20px;
  height: 20px;
  border-radius: 4px;
}
.demo-window-title {
  font-size: 13px;
  font-weight: 600;
  flex: 1;
}
.demo-window-close {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--demo-text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (hover: hover) {
  .demo-window-close:hover { background: rgba(255,60,60,0.2); color: #ff4444; }
}
.demo-window-body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
}

/* ═══ MOCK APP STYLES ═══ */

/* Boards */
.mock-board {
  display: flex;
  gap: 12px;
  height: 100%;
  overflow-x: auto;
  padding-bottom: 8px;
}
.mock-col {
  min-width: 200px;
  width: 200px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mock-col-head {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--demo-text-muted);
  padding: 4px 0;
  border-bottom: 2px solid var(--demo-border);
}
.mock-card {
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--demo-card);
  border: 1px solid var(--demo-border);
  font-size: 13px;
  line-height: 1.4;
}
.mock-card-tag {
  display: inline-block;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  margin-top: 6px;
}
.tag-green { background: rgba(16,185,129,0.15); color: #10b981; }
.tag-blue { background: rgba(59,130,246,0.15); color: #3b82f6; }
.tag-orange { background: rgba(245,158,11,0.15); color: #f59e0b; }
.tag-red { background: rgba(239,68,68,0.15); color: #ef4444; }
.tag-purple { background: rgba(139,92,246,0.15); color: #8b5cf6; }

/* Calendar */
.mock-calendar {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mock-cal-day {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.mock-cal-date {
  width: 48px;
  text-align: center;
  flex-shrink: 0;
}
.mock-cal-date .day-num { font-size: 20px; font-weight: 700; }
.mock-cal-events { flex: 1; display: flex; flex-direction: column; gap: 6px; }
.mock-cal-event {
  padding: 8px 12px;
  border-radius: 8px;
  border-left: 3px solid var(--demo-accent);
  background: var(--demo-card);
  font-size: 13px;
}
.mock-cal-event .event-time { font-size: 11px; color: var(--demo-text-muted); }

/* Notes */
.mock-notes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 12px;
}
.mock-note {
  padding: 14px;
  border-radius: 10px;
  min-height: 120px;
}
.mock-note h4 { font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.mock-note p { font-size: 12px; line-height: 1.5; opacity: 0.8; }
.note-yellow { background: #433500; color: #fbbf24; }
.note-green { background: #052e16; color: #4ade80; }
.note-blue { background: #0c1e3d; color: #60a5fa; }
.note-pink { background: #3b0a2a; color: #f472b6; }

/* Chat */
.mock-chat {
  display: flex;
  height: 100%;
}
.mock-chat-sidebar {
  width: 200px;
  border-right: 1px solid var(--demo-border);
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-right: 12px;
}
.mock-chat-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  cursor: default;
}
.mock-chat-item:first-child { background: rgba(139,92,246,0.1); }
.mock-chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.mock-chat-info { flex: 1; min-width: 0; }
.mock-chat-name { font-size: 13px; font-weight: 600; }
.mock-chat-preview { font-size: 11px; color: var(--demo-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mock-chat-messages {
  flex: 1;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: flex-end;
}
.mock-msg {
  max-width: 70%;
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 13px;
  line-height: 1.4;
}
.mock-msg.sent { align-self: flex-end; background: var(--demo-accent); color: #fff; border-bottom-right-radius: 4px; }
.mock-msg.received { align-self: flex-start; background: var(--demo-card); border-bottom-left-radius: 4px; }

/* Docs / Sheets list */
.mock-doc-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mock-doc-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  background: var(--demo-card);
}
.mock-doc-icon {
  width: 32px;
  height: 32px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  flex-shrink: 0;
}
.mock-doc-info { flex: 1; }
.mock-doc-title { font-size: 14px; font-weight: 600; }
.mock-doc-meta { font-size: 11px; color: var(--demo-text-muted); margin-top: 2px; }

/* Mail */
.mock-mail-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.mock-mail-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  border-radius: 8px;
  border-left: 3px solid transparent;
}
.mock-mail-item.unread { background: rgba(139,92,246,0.05); border-left-color: var(--demo-accent); }
.mock-mail-item.unread .mail-subject { font-weight: 700; }
.mail-from { font-size: 13px; font-weight: 600; width: 140px; flex-shrink: 0; }
.mail-content { flex: 1; min-width: 0; }
.mail-subject { font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mail-preview { font-size: 12px; color: var(--demo-text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.mail-time { font-size: 11px; color: var(--demo-text-muted); flex-shrink: 0; }

/* AI Conversation */
.mock-ai {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.mock-ai-msg {
  display: flex;
  gap: 10px;
}
.mock-ai-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
  background: var(--demo-card);
}
.mock-ai-bubble {
  flex: 1;
  font-size: 13px;
  line-height: 1.6;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--demo-card);
  white-space: pre-line;
}
.mock-ai-msg.user .mock-ai-bubble { background: rgba(139,92,246,0.12); }

/* Todo */
.mock-todo-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mock-todo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--demo-card);
  font-size: 13px;
}
.mock-todo-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--demo-border);
  flex-shrink: 0;
}
.mock-todo-item.done .mock-todo-check {
  background: var(--demo-accent);
  border-color: var(--demo-accent);
}
.mock-todo-item.done span { text-decoration: line-through; opacity: 0.5; }

/* Files */
.mock-files {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}
.mock-file {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 8px;
  border-radius: 10px;
  background: var(--demo-card);
  text-align: center;
}
.mock-file-icon { font-size: 28px; }
.mock-file-name { font-size: 11px; word-break: break-all; }

/* Contacts */
.mock-contacts {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mock-contact {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--demo-card);
}
.mock-contact-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
}
.mock-contact-info { flex: 1; }
.mock-contact-name { font-size: 14px; font-weight: 600; }
.mock-contact-role { font-size: 11px; color: var(--demo-text-muted); }

/* Presentations */
.mock-present-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.mock-present-card {
  border-radius: 10px;
  overflow: hidden;
  background: var(--demo-card);
}
.mock-present-thumb {
  height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}
.mock-present-info { padding: 10px 12px; }
.mock-present-title { font-size: 13px; font-weight: 600; }
.mock-present-meta { font-size: 11px; color: var(--demo-text-muted); margin-top: 2px; }

/* Studio */
.mock-studio-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}
.mock-studio-card {
  padding: 16px;
  border-radius: 10px;
  background: var(--demo-card);
  border: 1px solid var(--demo-border);
}
.mock-studio-icon { font-size: 24px; margin-bottom: 8px; }
.mock-studio-name { font-size: 14px; font-weight: 600; }
.mock-studio-desc { font-size: 12px; color: var(--demo-text-muted); margin-top: 4px; }
.mock-studio-status {
  display: inline-block;
  margin-top: 8px;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  background: rgba(16,185,129,0.15);
  color: #10b981;
}

/* ═══ RESPONSIVE ═══ */
@media (max-width: 768px) {
  .desktop-icons {
    top: 80px;
    right: 12px;
    bottom: 80px;
    left: auto;
    gap: 6px;
  }
  .desktop-icon { width: 60px; }
  .desktop-icon img { width: 36px; height: 36px; }
  .clock-time { font-size: 2.5rem; }
  .desktop-clock { top: 16px; left: 16px; }
  .demo-banner { font-size: 11px; padding: 6px 12px; }
  .demo-window {
    left: 4px !important;
    top: 50px !important;
    right: 4px !important;
    width: auto !important;
    height: calc(100vh - 130px) !important;
  }
  .system-bar-inner { padding: 6px 10px; gap: 2px; }
  .sbar-btn { width: 34px; height: 34px; }
  .app-launcher-grid { grid-template-columns: repeat(4, 1fr); }
  .mock-chat-sidebar { width: 140px; }
  .mock-board { overflow-x: scroll; }
}