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

html, body {
  height: 100%;
  overflow: hidden;
  font-family: 'Segoe UI', 'Ubuntu', Tahoma, sans-serif;
  color: #e8e8f0;
  background: #0b0912;
}

/* ================= Wallpaper ================= */
.desktop {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 25% 30%, #2a163b 0%, transparent 55%),
    radial-gradient(circle at 75% 70%, #10223a 0%, transparent 50%),
    linear-gradient(160deg, #0d0a15 0%, #05040a 100%);
  overflow: hidden;
  user-select: none;
}
.desktop::after {
  content: "";
  position: absolute; inset: 0;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="80" height="80"><circle cx="40" cy="40" r="1" fill="%23ffffff14"/></svg>');
  pointer-events: none;
}

/* Custom wallpaper (overrides the default gradient) */
.desktop.custom-bg {
  background: var(--custom-bg, linear-gradient(160deg, #0d0a15 0%, #05040a 100%)) !important;
  background-size: cover !important;
  background-position: center !important;
  background-repeat: no-repeat !important;
}

/* ================= Desktop icons ================= */
.desktop-icons {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.desktop-icon {
  position: absolute;
  width: 92px; height: 96px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 6px;
  padding: 6px;
  border-radius: 10px;
  color: #fff;
  font-size: 12px;
  text-align: center;
  cursor: pointer;
  text-shadow: 0 1px 3px rgba(0,0,0,0.9);
  transition: background 0.15s;
  user-select: none;
  pointer-events: auto;
}
.desktop-icon:hover  { background: rgba(255,255,255,0.10); }
.desktop-icon:active { background: rgba(255,255,255,0.18); }
.desktop-icon .icon-img {
  font-size: 34px;
  filter: drop-shadow(0 2px 3px rgba(0,0,0,0.7));
  pointer-events: none;
}
.desktop-icon span {
  line-height: 1.15;
  word-break: break-word;
  pointer-events: none;
}

/* ================= Windows ================= */
#window-layer {
  position: absolute;
  inset: 0 0 52px 0;
  pointer-events: none;
}
.window {
  position: absolute;
  top: 90px; left: 180px;
  width: 880px; height: 600px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 140px);
  min-width: 380px; min-height: 220px;
  display: flex; flex-direction: column;
  background: rgba(22,22,32,0.96);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  box-shadow: 0 24px 70px rgba(0,0,0,0.7), 0 0 0 1px rgba(255,255,255,0.04);
  overflow: hidden;
  pointer-events: auto;
  resize: both;
  animation: winIn 0.16s ease-out;
}
@keyframes winIn {
  from { opacity: 0; transform: scale(0.96) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.window.minimized { display: none; }
.window-bar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px;
  background: linear-gradient(180deg, #3a1f4d 0%, #271333 100%);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  cursor: grab;
  flex-shrink: 0;
}
.window-bar:active { cursor: grabbing; }
.window-title {
  font-size: 13px; font-weight: 600; color: #f0d6ff; letter-spacing: 0.3px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.window-controls { display: flex; gap: 6px; flex-shrink: 0; }
.window-controls button {
  width: 28px; height: 22px;
  border: none; border-radius: 5px;
  background: rgba(255,255,255,0.08);
  color: #ddd;
  cursor: pointer;
  font-size: 12px; line-height: 1;
  transition: background 0.15s, color 0.15s;
}
.window-controls .minimize:hover { background: #f5b041; color: #111; }
.window-controls .close:hover    { background: #e74c3c; color: #fff; }

.window-body {
  flex: 1;
  overflow: auto;
  padding: 24px 28px;
  font-size: 15px; line-height: 1.65;
  color: #ddd;
  user-select: text;
}
.window-body h1 { font-size: 26px; color: #f3d1ff; margin: 0 0 14px; }
.window-body h2 { font-size: 20px; color: #c8a2ff; margin: 26px 0 10px; }
.window-body h3 { font-size: 16px; color: #a67fd1; margin: 20px 0 8px; }
.window-body p  { margin: 0 0 12px; }
.window-body ul { margin: 0 0 12px 22px; }
.window-body a  { color: #8ab4f8; }
.window-body a:hover { text-decoration: underline; }
.window-body pre {
  background: #0b0b12;
  border: 1px solid #2a2a3a;
  border-radius: 10px;
  padding: 16px;
  font-family: 'Courier New', Menlo, monospace;
  font-size: 12.5px; line-height: 1.5;
  color: #cfcfcf;
  overflow-x: auto;
  white-space: pre-wrap; word-wrap: break-word;
  margin: 0 0 16px;
}
.window-body iframe {
  width: 100%; aspect-ratio: 16 / 9;
  border: 0; border-radius: 10px; margin-top: 8px;
}

/* ================= Images ================= */
.window-body img.cert-image {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.15);
  margin: 20px 0;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}

.btn {
  display: inline-block; margin: 4px 8px 4px 0;
  padding: 8px 14px;
  border-radius: 8px;
  background: linear-gradient(180deg, #7b3fa0, #5a2a7a);
  color: #fff !important; text-decoration: none;
  font-size: 13px; font-weight: 600;
  border: 1px solid rgba(255,255,255,0.15);
  transition: filter 0.15s, transform 0.1s;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.15); }
.btn:active { transform: translateY(1px); }

/* Grade tables */
.grades-table {
  width: 100%; border-collapse: collapse; margin: 10px 0 18px;
  background: #14141c; border-radius: 10px; overflow: hidden;
  font-family: 'Courier New', Menlo, monospace; font-size: 12.5px;
}
.grades-table th {
  background: #0b0b12; color: #e0e0e0;
  padding: 10px 12px; text-align: left; font-weight: 600;
  border-bottom: 1px solid #2a2a3a;
}
.grades-table td {
  padding: 8px 12px; border-bottom: 1px solid #22222e; color: #d4d4d4;
}
.grades-table tr:last-child td { border-bottom: none; }
.grade-dist  { color: #6fcf97; font-weight: bold; }
.grade-merit { color: #f5b041; font-weight: bold; }
.grade-pass  { color: #5dade2; font-weight: bold; }
.overall { font-weight: bold; color: #c8a2ff; }

/* ================= Taskbar ================= */
#taskbar {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 52px;
  display: flex; align-items: center;
  gap: 6px; padding: 0 10px;
  background: rgba(15,13,22,0.92);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(255,255,255,0.08);
  z-index: 5000;
}
#start-btn {
  display: flex; align-items: center; gap: 6px;
  height: 38px; padding: 0 14px;
  background: linear-gradient(180deg, #7b3fa0, #4d1f6b);
  color: #fff; border: none; border-radius: 8px;
  font-weight: 700; font-size: 13px; cursor: pointer;
  letter-spacing: 0.5px;
  transition: filter 0.15s;
}
#start-btn:hover { filter: brightness(1.15); }
#start-btn span { font-weight: 600; }

#taskbar-apps {
  flex: 1;
  display: flex; gap: 6px;
  overflow-x: auto;
  padding: 0 6px;
}
.taskbar-app {
  display: flex; align-items: center; gap: 6px;
  height: 36px; padding: 0 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  color: #ddd; font-size: 12.5px;
  cursor: pointer;
  max-width: 200px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  transition: background 0.15s, border-color 0.15s;
}
.taskbar-app:hover { background: rgba(255,255,255,0.12); }
.taskbar-app.focused {
  background: rgba(123,63,160,0.35);
  border-color: rgba(200,162,255,0.5);
}

#taskbar-clock {
  display: flex; flex-direction: column; align-items: flex-end;
  font-size: 12px; color: #cfcfdf;
  padding: 0 12px;
  line-height: 1.25;
  min-width: 90px;
}
#taskbar-clock .clock-time { font-weight: 700; font-size: 13px; }
#taskbar-clock .clock-date { font-size: 11px; opacity: 0.75; }

/* ================= Start Menu ================= */
#start-menu {
  position: absolute;
  bottom: 60px; left: 10px;
  width: 300px;
  background: rgba(20,18,30,0.97);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7);
  padding: 8px;
  z-index: 6000;
  animation: menuIn 0.14s ease-out;
}
#start-menu.hidden { display: none; }
@keyframes menuIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.start-header {
  padding: 10px 12px 14px;
  font-size: 14px; font-weight: 800;
  color: #c8a2ff;
  letter-spacing: 0.6px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 6px;
}
.start-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: #e5e5f0; font-size: 13px;
  text-decoration: none; cursor: pointer;
  transition: background 0.12s;
}
.start-item:hover { background: rgba(123,63,160,0.28); }
.start-divider {
  height: 1px; background: rgba(255,255,255,0.08);
  margin: 6px 6px;
}

/* ================= Settings / Wallpaper UI ================= */
.settings-group {
  background: #14141c;
  border: 1px solid #26263a;
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 18px;
}
.settings-group h3 { margin-top: 0; }
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
  margin: 10px 0;
}
.swatch {
  height: 60px;
  border-radius: 8px;
  border: 2px solid rgba(255,255,255,0.1);
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s;
  position: relative;
  overflow: hidden;
}
.swatch:hover { transform: scale(1.05); border-color: rgba(200,162,255,0.6); }
.swatch.active { border-color: #c8a2ff; box-shadow: 0 0 0 3px rgba(200,162,255,0.3); }
.swatch input[type="color"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer;
  width: 100%; height: 100%; border: none; padding: 0;
}

/* ================= CV / LibreOffice Writer ================= */
.cv-editor {
  display: flex; flex-direction: column; height: 100%;
}
.cv-toolbar {
  display: flex; flex-wrap: wrap; gap: 4px;
  padding: 6px 10px;
  background: #23232e;
  border-bottom: 1px solid #11111a;
  align-items: center;
  flex-shrink: 0;
}
.cv-toolbar .tb-group {
  display: flex; gap: 2px; padding-right: 6px;
  border-right: 1px solid rgba(255,255,255,0.08);
  margin-right: 6px;
  align-items: center;
}
.cv-toolbar button, .cv-toolbar select {
  background: #2c2c3a;
  color: #e6e6ef;
  border: 1px solid #3a3a4c;
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 12px;
  cursor: pointer;
  min-width: 26px;
  height: 26px;
}
.cv-toolbar button:hover { background: #3d3d55; }
.cv-toolbar button.active { background: #5a2a7a; border-color: #7b3fa0; }
.cv-toolbar select { min-width: 120px; padding: 2px 6px; }

.cv-page-area {
  flex: 1;
  overflow: auto;
  background: #4a4a55;
  padding: 24px;
  display: flex;
  justify-content: center;
  align-items: flex-start;
}
.cv-page {
  background: #ffffff;
  color: #1a1a1a;
  width: 794px;
  min-height: 1123px;
  padding: 72px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
  font-family: 'Liberation Serif', 'Times New Roman', serif;
  font-size: 12pt;
  line-height: 1.35;
  outline: none;
  flex-shrink: 0;
}
.cv-page:focus { box-shadow: 0 6px 24px rgba(0,0,0,0.5), 0 0 0 2px #8ab4f8; }
.cv-page h1 {
  font-family: 'Liberation Sans', Arial, sans-serif;
  font-size: 22pt; margin: 0 0 4pt; color: #1a1a1a; font-weight: bold;
}
.cv-page h2 {
  font-family: 'Liberation Sans', Arial, sans-serif;
  font-size: 14pt; margin: 14pt 0 6pt; color: #1a1a1a;
  border-bottom: 1px solid #999; padding-bottom: 2pt; font-weight: bold;
}
.cv-page h3 {
  font-family: 'Liberation Sans', Arial, sans-serif;
  font-size: 12pt; margin: 10pt 0 3pt; color: #1a1a1a; font-weight: bold;
}
.cv-page p { margin: 0 0 6pt; }
.cv-page ul { margin: 0 0 6pt 18pt; padding: 0; }
.cv-page ol { margin: 0 0 6pt 18pt; padding: 0; }
.cv-page li { margin: 0 0 2pt; }
.cv-page a { color: #1a4b8c; text-decoration: underline; }
.cv-page .meta { color: #555; font-style: italic; margin-bottom: 4pt; }

.cv-page-header {
  text-align: center;
  border-bottom: 2px solid #333;
  padding-bottom: 10pt;
  margin-bottom: 14pt;
}
.cv-page-header h1 { font-size: 20pt; margin-bottom: 2pt; }
.cv-page-header .subtitle {
  font-family: sans-serif; font-size: 11pt; color: #444; margin-bottom: 6pt;
}
.cv-page-header .contact { font-size: 10pt; color: #333; }

@media (max-width: 900px) {
  .cv-page { width: 100%; padding: 24px; }
}

/* ================= Mobile fallback ================= */
@media (max-width: 768px) {
  .window {
    top: 20px; left: 10px;
    width: calc(100vw - 20px);
    height: calc(100vh - 130px);
    resize: none;
  }
  #taskbar-clock .clock-date { display: none; }
}
}