:root,
html[data-theme="dark"] {
  --panel-height: 32px;
  --panel-bg: #1c1c1c;
  --panel-fg: #f6f5f4;
  --panel-sym-filter: brightness(0) invert(1);

  --accent: #3584e4;
  --accent-hover: #62a0ea;

  --surface: rgba(36, 36, 36, 0.94);
  --surface-solid: #242424;
  --surface-fg: #f6f5f4;
  --surface-fg-dim: rgba(246, 245, 244, 0.75);
  --surface-muted: rgba(255, 255, 255, 0.1);
  --surface-muted-hover: rgba(255, 255, 255, 0.14);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);

  --bg: #0e1014;
  --bg-card: #1a1d24;
  --bg-card-hover: #22262f;
  --card-glass: rgba(18, 20, 26, 0.72);
  --card-glass-hover: rgba(28, 32, 40, 0.86);
  --card-glass-border: rgba(255, 255, 255, 0.1);
  --card-glass-border-hover: rgba(255, 255, 255, 0.16);
  --text: #eef1f6;
  --text-muted: #9aa3b2;
  --danger: #e01b24;
  --bg-glow: rgba(53, 132, 228, 0.16);
  --wallpaper: url("assets/Wallpaper/annie-spratt-nJGaLopCqJk-unsplash.jpg");

  --term-win-bg: #242424;
  --term-win-border: #3d3d3d;
  --term-win-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
  --term-header-bg: #303030;
  --term-header-border: #3d3d3d;
  --term-title-fg: #f6f5f4;
  --term-body-bg: #1e1e1e;
  --term-body-fg: #e8e6e3;
  --term-out: #c0bfbc;
  --term-err: #f66151;
  --term-cmd: #99c1f1;
  --term-prompt-user: #57e389;
  --term-prompt-path: #62a0ea;
  --term-cursor: #3584e4;
  --term-wc-hover: rgba(255, 255, 255, 0.1);
  --term-wc-sym-filter: brightness(0) invert(1);
  --term-max-border: rgba(246, 245, 244, 0.85);
  --term-scrollbar: rgba(255, 255, 255, 0.18);
  --term-scrollbar-thumb: rgba(255, 255, 255, 0.16);
  --term-scrollbar-thumb-hover: rgba(255, 255, 255, 0.28);

  --font: "Cantarell", "Inter", "Segoe UI", system-ui, sans-serif;
  --transition-fast: 120ms ease;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --start-overlay-card-bg: #242424;
  --start-overlay-fg: #f6f5f4;
  --start-overlay-fg-dim: rgba(246, 245, 244, 0.75);

  --cursor-default: url("assets/cursors/default.png") 4 2, default;
  --cursor-pointer: url("assets/cursors/pointer.png") 10 2, pointer;
  --cursor-text: url("assets/cursors/text.png") 12 12, text;
  --cursor-wait: url("assets/cursors/wait.png") 12 12, wait;
  --cursor-progress: url("assets/cursors/progress.png") 4 2, progress;
  --cursor-move: url("assets/cursors/move.png") 12 12, move;
  --cursor-grab: url("assets/cursors/grab.png") 14 7, grab;
  --cursor-grabbing: url("assets/cursors/grabbing.png") 12 6, grabbing;
  --cursor-ns-resize: url("assets/cursors/ns-resize.png") 12 12, ns-resize;
  --cursor-ew-resize: url("assets/cursors/ew-resize.png") 12 12, ew-resize;
  --cursor-nwse-resize: url("assets/cursors/nwse-resize.png") 12 12, nwse-resize;
  --cursor-nesw-resize: url("assets/cursors/nesw-resize.png") 12 12, nesw-resize;
  --cursor-n-resize: url("assets/cursors/n-resize.png") 12 2, n-resize;
  --cursor-s-resize: url("assets/cursors/s-resize.png") 12 22, s-resize;
  --cursor-e-resize: url("assets/cursors/e-resize.png") 22 12, e-resize;
  --cursor-w-resize: url("assets/cursors/w-resize.png") 2 12, w-resize;
  --cursor-col-resize: url("assets/cursors/col-resize.png") 12 12, col-resize;
  --cursor-row-resize: url("assets/cursors/row-resize.png") 12 12, row-resize;
  --cursor-not-allowed: url("assets/cursors/not-allowed.png") 12 12, not-allowed;
  --cursor-help: url("assets/cursors/help.png") 4 8, help;
  --cursor-crosshair: url("assets/cursors/crosshair.png") 12 12, crosshair;
  --cursor-copy: url("assets/cursors/copy.png") 4 2, copy;
  --cursor-alias: url("assets/cursors/alias.png") 9 6, alias;
  --cursor-context-menu: url("assets/cursors/context-menu.png") 5 2, context-menu;
  --cursor-zoom-in: url("assets/cursors/zoom-in.png") 10 10, zoom-in;
  --cursor-zoom-out: url("assets/cursors/zoom-out.png") 10 10, zoom-out;
  --cursor-no-drop: url("assets/cursors/no-drop.png") 9 6, no-drop;
}

html[data-theme="light"] {
  --surface: rgba(255, 255, 255, 0.96);
  --surface-solid: #ffffff;
  --surface-fg: #1c1c1c;
  --surface-fg-dim: rgba(28, 28, 28, 0.7);
  --surface-muted: rgba(0, 0, 0, 0.06);
  --surface-muted-hover: rgba(0, 0, 0, 0.1);
  --border: rgba(0, 0, 0, 0.08);
  --border-strong: rgba(0, 0, 0, 0.14);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.18);

  --bg: #f0f2f5;
  --bg-card: #ffffff;
  --bg-card-hover: #f6f7f9;
  --card-glass: rgba(255, 255, 255, 0.78);
  --card-glass-hover: rgba(255, 255, 255, 0.92);
  --card-glass-border: rgba(0, 0, 0, 0.08);
  --card-glass-border-hover: rgba(0, 0, 0, 0.14);
  --text: #1c1c1c;
  --text-muted: #5e6772;
  --bg-glow: rgba(53, 132, 228, 0.1);
  --wallpaper: url("assets/Wallpaper/ands-mahardika--MRPyzpWsh0-unsplash.jpg");

  --term-header-bg: #ebebeb;
  --term-title-fg: #1c1c1c;
  --term-wc-hover: rgba(0, 0, 0, 0.08);
  --term-wc-sym-filter: none;
  --term-max-border: rgba(28, 28, 28, 0.75);
}

html[data-theme="light"] .quick-settings .sym,
html[data-theme="light"] .network-menu .sym,
html[data-theme="light"] .power-menu .sym,
html[data-theme="light"] .app-menu .sym {
  filter: none;
  opacity: 0.85;
}

html[data-theme="light"] .qs-toggle.active .sym {
  filter: brightness(0) invert(1) !important;
  opacity: 1;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  min-height: 100%;
  background-color: var(--bg);
  cursor: var(--cursor-default);
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font-family: var(--font);
  color: var(--text);
  background: transparent;
  -webkit-font-smoothing: antialiased;
  transition: color 0.2s ease;
  cursor: var(--cursor-default);
}

body,
body * {
  cursor: var(--cursor-default) !important;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-color: var(--bg);
  background-image: var(--wallpaper);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

button,
input {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
  cursor: var(--cursor-default);
}

/* Mouse focus must not leave a UA ring after hover moves on. */
button:focus:not(:focus-visible) {
  outline: none;
}

button:disabled {
  cursor: var(--cursor-default);
  opacity: 0.5;
}

.start-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(10, 11, 12, 0.82);
}

.start-overlay[hidden] {
  display: none !important;
}

.start-overlay-card {
  width: min(420px, 100%);
  max-height: min(90vh, 640px);
  overflow: auto;
  padding: 28px 28px 22px;
  border-radius: 12px;
  background: var(--start-overlay-card-bg);
  color: var(--start-overlay-fg);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.08);
}

.start-overlay-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.start-overlay-logo {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  object-fit: contain;
  pointer-events: none;
}

.start-overlay-heading {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
}

.start-overlay-sub {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--start-overlay-fg-dim);
}

.start-overlay-section {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  color: var(--start-overlay-fg);
}

.start-overlay-list {
  margin: 0 0 24px;
  padding: 0 0 0 1.15em;
  font-size: 13px;
  line-height: 1.45;
  color: var(--start-overlay-fg-dim);
}

.start-overlay-list li {
  margin: 0 0 8px;
}

.start-overlay-list li:last-child {
  margin-bottom: 0;
}

.start-overlay-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 40px;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: var(--cursor-default);
  transition: background var(--transition-fast);
}

.start-overlay-btn:hover {
  background: var(--accent-hover);
}

.start-overlay-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.start-overlay-skip {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 8px;
  border: none;
  background: transparent;
  color: var(--start-overlay-fg-dim);
  font: inherit;
  font-size: 12px;
  text-align: center;
  cursor: var(--cursor-default);
  border-radius: 4px;
}

.start-overlay-skip:hover {
  color: var(--start-overlay-fg);
  background: rgba(255, 255, 255, 0.06);
}

/* ========== GNOME top bar ========== */

.top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--panel-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 8px;
  background: var(--panel-bg);
  color: var(--panel-fg);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
}

.top-bar-left {
  justify-self: start;
  display: flex;
  align-items: center;
  height: 100%;
  padding-left: 4px;
}

.app-menu-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  color: var(--panel-fg);
  transition: background-color var(--transition-fast);
}

.app-menu-btn:hover,
.app-menu-btn[aria-expanded="true"] {
  background-color: rgba(255, 255, 255, 0.12);
}

.clock-display {
  justify-self: center;
  height: 24px;
  padding: 0 12px;
  display: flex;
  align-items: center;
  font-variant-numeric: tabular-nums;
  pointer-events: none;
  user-select: none;
}

.status-area {
  justify-self: end;
  display: flex;
  align-items: center;
  height: 100%;
  padding-right: 6px;
}

.system-menu-btn {
  display: flex;
  align-items: center;
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  transition: background-color var(--transition-fast);
}

.system-menu-btn:hover,
.system-menu-btn[aria-expanded="true"] {
  background-color: rgba(255, 255, 255, 0.12);
}

.status-icons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-icon,
.sym {
  display: block;
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  filter: var(--panel-sym-filter);
  opacity: 0.95;
}

.sym-sm {
  width: 12px;
  height: 12px;
}

/* ========== Quick Settings ========== */

.quick-settings,
.network-menu,
.power-menu,
.app-menu {
  position: fixed;
  top: calc(var(--panel-height) + 8px);
  right: 10px;
  z-index: 200;
  background: var(--surface);
  color: var(--surface-fg);
  backdrop-filter: blur(40px) saturate(1.2);
  -webkit-backdrop-filter: blur(40px) saturate(1.2);
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  box-shadow: var(--shadow);
  animation: pop-in 140ms ease;
}

.quick-settings {
  width: 340px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.quick-settings .sym,
.network-menu .sym,
.power-menu .sym,
.app-menu .sym {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.quick-settings[hidden],
.network-menu[hidden],
.power-menu[hidden],
.app-menu[hidden],
.app-window[hidden],
.backdrop[hidden],
.modal[hidden],
.toast[hidden],
.screen[hidden] {
  display: none !important;
}

@keyframes pop-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.qs-toolbar {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.qs-toolbar-group {
  display: flex;
  gap: 10px;
}

.qs-round-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background-color: var(--surface-muted);
  transition: background-color var(--transition-fast);
}

.qs-round-btn:hover:not(:disabled) {
  background-color: var(--surface-muted-hover);
}

.qs-round-btn .sym {
  width: 18px;
  height: 18px;
}

.qs-toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.qs-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  min-height: 48px;
  padding: 10px 12px;
  border-radius: 999px;
  background-color: var(--surface-muted);
  color: var(--surface-fg);
  text-align: left;
  transition: background-color var(--transition-fast);
}

.qs-toggle:hover {
  background-color: var(--surface-muted-hover);
}

.qs-toggle.active {
  background-color: var(--accent);
  color: #fff;
}

.qs-toggle.active .sym {
  filter: brightness(0) invert(1) !important;
  opacity: 1;
}

.qs-toggle-main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.qs-toggle-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
  line-height: 1.15;
}

.qs-toggle-label {
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.qs-toggle-sub {
  font-size: 11px;
  font-weight: 500;
  opacity: 0.9;
  margin-top: 1px;
}

.qs-slider-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 2px 4px 2px 0;
}

.qs-slider-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: background-color var(--transition-fast);
}

.qs-slider-icon:hover {
  background-color: var(--surface-muted);
}

.qs-slider-icon .sym {
  width: 16px;
  height: 16px;
}

.qs-slider {
  flex: 1;
  min-width: 0;
  height: 18px;
  margin: 0;
  padding: 0;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.qs-slider:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 999px;
}

.qs-slider::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--accent) var(--qs-vol, 70%),
    var(--surface-muted) var(--qs-vol, 70%)
  );
}

.qs-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: #f6f5f4;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

.qs-slider::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: var(--surface-muted);
}

.qs-slider::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: var(--accent);
}

.qs-slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: none;
  border-radius: 50%;
  background: #f6f5f4;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}

html[data-theme="light"] .qs-slider::-webkit-slider-thumb,
html[data-theme="light"] .qs-slider::-moz-range-thumb {
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
}

/* Network menu */
.network-menu {
  width: 340px;
  padding: 12px;
}

.menu-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 12px;
  padding: 4px 4px 10px;
  border-bottom: 1px solid var(--border);
}

.menu-back {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background-color: var(--surface-muted);
  transition: background-color var(--transition-fast);
}

.menu-back:hover {
  background-color: var(--surface-muted-hover);
}

.net-block {
  margin-bottom: 10px;
}

.net-section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--surface-fg-dim);
  margin: 8px 4px 6px;
}

.net-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: var(--surface-muted);
}

.net-name {
  font-size: 13px;
  font-weight: 600;
}

.net-detail {
  font-size: 12px;
  color: var(--surface-fg-dim);
  margin-top: 2px;
}

.btn-pill {
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--surface-muted);
  transition: background-color var(--transition-fast);
}

.btn-pill:hover {
  background-color: var(--surface-muted-hover);
}

.wifi-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
}

.wifi-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 13px;
  text-align: left;
}

.wifi-item:hover {
  background-color: var(--surface-muted);
}

.wifi-item.active {
  background: rgba(53, 132, 228, 0.25);
  color: #fff;
}

.wifi-item-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wifi-item .sym {
  width: 16px;
  height: 16px;
}

/* Applications menu */
.app-menu {
  right: auto;
  left: 10px;
  width: 240px;
  padding: 8px;
  border-radius: 18px;
}

.app-menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
}

.app-menu-item:hover {
  background-color: var(--surface-muted);
}

.app-menu-item-icon {
  width: 24px;
  height: 24px;
  object-fit: contain;
  border-radius: 5px;
  flex-shrink: 0;
}

/* Power menu */
.power-menu {
  width: 220px;
  padding: 8px;
  border-radius: 18px;
}

.power-menu-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px 8px;
  font-weight: 600;
  font-size: 13px;
  color: var(--surface-fg-dim);
}

.power-menu-item {
  display: block;
  width: 100%;
  text-align: left;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
}

.power-menu-item:hover {
  background-color: var(--surface-muted);
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: transparent;
}

/* ========== Main chooser ========== */

.main {
  box-sizing: border-box;
  width: 100%;
  max-width: 980px;
  min-height: calc(100vh - var(--panel-height));
  min-height: calc(100dvh - var(--panel-height));
  margin: 0 auto;
  padding: 48px 24px 72px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
}

.main h1 {
  margin: 0 0 32px;
  text-align: center;
  font-size: clamp(1.75rem, 3.5vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.section-title {
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: -0.01em;
}

.chooser-heading {
  margin: 0 0 12px;
  padding: 10px 16px;
  text-align: left;
  border-radius: 0;
  background: linear-gradient(90deg, var(--card-glass) 0%, transparent 50%);
}

.chooser-heading h2,
.chooser-heading p {
  margin: 0;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.15;
  color: var(--text);
}

.chooser-heading p {
  font-size: 0.8rem;
  font-weight: 300;
  color: #5e6772;
}

html[data-theme="dark"] .chooser-heading h2 {
  color: #797979;
}

html[data-theme="dark"] .chooser-heading p {
  color: #5a5a5a;
}

.distro-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.distro-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 22px 12px 18px;
  background-color: var(--card-glass);
  border: 1px solid var(--card-glass-border);
  border-radius: 16px;
  color: inherit;
  /* No per-tile backdrop-filter: sibling hover promotes layers and
     the first tile's cached backdrop redraws in the padding. */
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.18);
  transition: background-color 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.distro-card:hover,
.distro-card:focus-visible {
  background-color: var(--card-glass-hover);
  border-color: var(--card-glass-border-hover);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
  outline: none;
}

.distro-card:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(53, 132, 228, 0.3);
}

.distro-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 12px;
  flex-shrink: 0;
}

.distro-logo.large {
  width: 80px;
  height: 80px;
  border-radius: 16px;
}

.distro-card .card-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  width: 100%;
}

.distro-card h3 {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.distro-card .card-desktop {
  margin: 0;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.15;
}

.distro-card .card-version {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text-muted);
  opacity: 0.8;
  line-height: 1.15;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  transition: background-color 0.15s, color 0.15s, border-color 0.15s;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
  padding: 12px 28px;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.btn-secondary {
  color: var(--text);
}

.btn-secondary:hover {
  background-color: var(--surface-muted-hover);
}

.btn-secondary[aria-expanded="true"] {
  color: var(--accent-hover);
}

.btn-secondary[aria-expanded="true"] .chevron {
  transform: rotate(180deg);
}

.btn-secondary .chevron {
  width: 16px;
  height: 16px;
  transition: transform 0.2s var(--ease);
}

.btn-ghost {
  color: var(--text-muted);
  padding: 10px 14px;
}

.btn-ghost:hover {
  background-color: var(--surface-muted);
  color: var(--text);
}

.btn-danger {
  background-color: var(--danger);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
}

.catalog {
  margin-top: 0;
  padding-top: 0;
}

@keyframes fade-up {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.catalog-scroll {
  max-height: min(320px, 42vh);
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 4px;
  border-radius: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.22) transparent;
}

.catalog-scroll::-webkit-scrollbar {
  width: 8px;
}

.catalog-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.22);
  border-radius: 999px;
}

.catalog-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.catalog-row {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 10px 14px;
  background-color: var(--card-glass);
  border: 1px solid var(--card-glass-border);
  border-radius: 12px;
  text-align: left;
  color: inherit;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.14);
  transition: background-color 0.12s, box-shadow 0.12s, border-color 0.12s;
}

.catalog-row:hover,
.catalog-row:focus-visible {
  background-color: var(--card-glass-hover);
  border-color: var(--card-glass-border-hover);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.22);
  outline: none;
}

.catalog-row .distro-logo {
  width: 40px;
  height: 40px;
  border-radius: 8px;
}

.catalog-row h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
}

.catalog-row .meta {
  margin-left: auto;
  font-size: 0.78rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Detail popover (overlays chooser with blurred backdrop) */
.screen-detail {
  position: fixed;
  top: var(--panel-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 24px 48px;
  overflow-y: auto;
  background: rgba(14, 16, 20, 0.35);
  backdrop-filter: blur(28px) saturate(1.15);
  -webkit-backdrop-filter: blur(28px) saturate(1.15);
  animation: pop-in 160ms ease;
}

body.detail-open,
body.install-open,
body.done-open {
  overflow: hidden;
}

html[data-theme="light"] .screen-detail,
html[data-theme="light"] .screen-install,
html[data-theme="light"] .screen-done {
  background: rgba(240, 242, 245, 0.4);
}

.detail-popover {
  width: min(520px, 100%);
  margin: 0 auto;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 16px;
  padding: 4px 0;
}

.back-link:hover {
  color: var(--text);
}

.back-link svg {
  width: 18px;
  height: 18px;
}

.detail-card {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
  animation: fade-up 0.25s var(--ease);
}

.detail-hero {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 16px;
}

.detail-hero h1 {
  margin: 0;
  text-align: left;
  font-size: 1.45rem;
  line-height: 1.2;
}

.detail-desktop {
  margin: 2px 0 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.2;
}

.detail-desktop[hidden] {
  display: none !important;
}

.detail-version {
  margin: 2px 0 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.2;
}

.detail-tagline {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.detail-desc {
  margin: 0 0 20px;
  color: var(--text-muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.de-options {
  margin: 0 0 16px;
}

.de-options-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.de-options-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: min(280px, 40vh);
  overflow-y: auto;
  padding-right: 2px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.22) transparent;
}

.de-option {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 12px;
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  text-align: left;
  color: inherit;
}

.de-option-meta {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.de-option-name {
  font-size: 0.9rem;
  font-weight: 600;
}

.de-option-size {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.de-option-action {
  flex-shrink: 0;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
  background-color: var(--accent);
  color: #fff;
  transition: background-color 0.12s, opacity 0.12s;
}

.de-option-action:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

.de-option-action:disabled {
  opacity: 0.45;
}

.de-option-action.local {
  background-color: var(--accent);
}

.de-option.downloading .de-option-action {
  display: none;
}

.de-option-progress {
  flex: 1 1 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-muted);
  overflow: hidden;
}

.de-option-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #57e389);
  border-radius: 999px;
  transition: width 0.3s ease;
}

html[data-theme="light"] .de-option {
  background: rgba(0, 0, 0, 0.02);
}

html[data-theme="light"] .de-option-progress {
  background: rgba(0, 0, 0, 0.08);
}

.detail-actions.catalog-mode {
  display: none;
}

.detail-warn {
  padding: 10px 12px;
  margin-bottom: 16px;
  border-radius: 10px;
  background: rgba(245, 165, 36, 0.12);
  border: 1px solid rgba(245, 165, 36, 0.28);
  color: #f5a524;
  font-size: 0.85rem;
  line-height: 1.4;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.detail-progress {
  flex: 1 1 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--surface-muted);
  overflow: hidden;
}

.detail-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #57e389);
  border-radius: 999px;
  transition: width 0.3s ease;
}

html[data-theme="light"] .detail-progress {
  background: rgba(0, 0, 0, 0.08);
}

/* Install / done overlays (blurred backdrop + panel) */
.screen-install,
.screen-done {
  position: fixed;
  top: var(--panel-height);
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px 48px;
  overflow-y: auto;
  background: rgba(14, 16, 20, 0.35);
  backdrop-filter: blur(28px) saturate(1.15);
  -webkit-backdrop-filter: blur(28px) saturate(1.15);
  animation: pop-in 160ms ease;
}

.install-panel,
.done-panel {
  width: min(420px, 100%);
  margin: 0 auto;
  padding: 32px 28px 28px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  animation: fade-up 0.28s var(--ease);
}

.install-panel .distro-logo,
.done-panel .done-check {
  margin: 0 auto 18px;
}

.install-panel h1,
.done-panel h1 {
  margin: 0 0 8px;
  font-size: 1.5rem;
  text-align: center;
}

.install-sub,
.done-msg {
  margin: 0 0 24px;
  color: var(--text-muted);
  line-height: 1.5;
}

.progress-wrap {
  text-align: left;
}

.progress-track {
  height: 8px;
  background: var(--surface-muted);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #57e389);
  border-radius: 999px;
  transition: width 0.25s ease;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
}

.done-check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: rgba(87, 227, 137, 0.14);
  color: #57e389;
  display: grid;
  place-items: center;
}

.done-check svg {
  width: 32px;
  height: 32px;
}

/* Modal / toast */
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  padding: 20px;
}

.modal-card {
  width: min(360px, 100%);
  background: var(--surface-solid);
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow);
}

.modal-card h2 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.modal-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 18px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 400;
  background: var(--surface-solid);
  border: 1px solid var(--border-strong);
  padding: 10px 16px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  font-size: 0.88rem;
  font-weight: 500;
  max-width: min(400px, calc(100vw - 32px));
  text-align: center;
  animation: pop-in 0.15s ease;
}

/* ========== GNOME Terminal ========== */

.term-window {
  position: fixed;
  z-index: 80;
  top: 72px;
  left: 50%;
  transform: translateX(-50%);
  width: min(720px, calc(100vw - 48px));
  height: min(420px, calc(100vh - var(--panel-height) - 96px));
  display: flex;
  flex-direction: column;
  background: var(--term-win-bg);
  color: var(--term-body-fg);
  border-radius: 12px;
  border: 1px solid var(--term-win-border);
  box-shadow: var(--term-win-shadow);
  overflow: hidden;
  animation: pop-in 160ms ease;
  transition: box-shadow 0.2s ease;
}

.term-window[hidden] {
  display: none !important;
}

.term-window.maximized,
.app-window.maximized {
  top: var(--panel-height) !important;
  left: 0 !important;
  right: 0 !important;
  bottom: 0 !important;
  width: 100vw !important;
  height: calc(100vh - var(--panel-height)) !important;
  max-height: none !important;
  transform: none !important;
  border-radius: 0;
  border: none;
}

.term-headerbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  height: 42px;
  padding: 0 8px 0 12px;
  background: var(--term-header-bg);
  color: var(--term-title-fg);
  border-bottom: 1px solid var(--term-header-border);
  cursor: var(--cursor-default);
  user-select: none;
  flex-shrink: 0;
  transition: background 0.2s ease, color 0.2s ease;
}

.term-window.maximized .term-headerbar {
  cursor: var(--cursor-default);
}

.term-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.term-title-wrap img {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  flex-shrink: 0;
}

.term-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--term-title-fg);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.term-window-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.term-wc {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  transition: background-color var(--transition-fast);
}

.term-wc:hover {
  background-color: var(--term-wc-hover);
}

.term-wc .sym {
  width: 14px;
  height: 14px;
  filter: var(--term-wc-sym-filter);
  opacity: 0.85;
}

.term-max {
  position: relative;
}

.term-max::before {
  content: "";
  width: 10px;
  height: 10px;
  border: 1.5px solid var(--term-max-border);
  border-radius: 2px;
  box-sizing: border-box;
}

.term-window.maximized .term-max::before {
  width: 8px;
  height: 8px;
  box-shadow: 1.5px -1.5px 0 -0.5px var(--term-max-border);
}

.term-close:hover {
  background-color: #e01b24;
}

.term-close:hover .sym {
  filter: brightness(0) invert(1);
  opacity: 1;
}

.term-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 12px 14px;
  background: var(--term-body-bg);
  font-family: "Source Code Pro", "DejaVu Sans Mono", "Noto Sans Mono", "Liberation Mono", ui-monospace, monospace;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--term-body-fg);
  cursor: var(--cursor-text) !important;
  outline: none;
  scrollbar-width: thin;
  scrollbar-color: var(--term-scrollbar) transparent;
  transition: background 0.2s ease, color 0.2s ease;
}

.term-body * {
  cursor: var(--cursor-text) !important;
}

.term-body::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.term-body::-webkit-scrollbar-track {
  background: transparent;
}

.term-body::-webkit-scrollbar-thumb {
  background: var(--term-scrollbar-thumb);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

.term-body::-webkit-scrollbar-thumb:hover {
  background: var(--term-scrollbar-thumb-hover);
  border: 2px solid transparent;
  background-clip: padding-box;
}

.term-body::-webkit-scrollbar-corner {
  background: transparent;
}

.term-scroll {
  white-space: pre-wrap;
  word-break: break-word;
}

.term-line {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.term-line.term-out {
  color: var(--term-out);
}

.term-line.term-err {
  color: var(--term-err);
}

.term-cmd {
  color: var(--term-cmd);
}

.term-input-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0;
  margin-top: 0;
}

.term-prompt-user {
  color: var(--term-prompt-user);
  font-weight: 700;
}

.term-prompt-colon {
  color: var(--term-body-fg);
}

.term-prompt-path {
  color: var(--term-prompt-path);
  font-weight: 600;
}

.term-prompt-dollar {
  color: var(--term-body-fg);
  margin-right: 0.5ch;
}

.term-typed {
  color: var(--term-body-fg);
  white-space: pre-wrap;
  word-break: break-all;
}

.term-cursor {
  display: inline-block;
  color: var(--term-cursor);
  margin-left: 1px;
  animation: term-blink 1s step-end infinite;
  line-height: 1;
}

@keyframes term-blink {
  50% {
    opacity: 0;
  }
}

/* ========== App windows (Web browser, System details) ========== */

.app-window {
  position: fixed;
  z-index: 80;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  color: var(--text);
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: var(--term-win-shadow);
  overflow: hidden;
  animation: pop-in 160ms ease;
}

.app-window[hidden] {
  display: none !important;
}

.app-window .term-headerbar {
  background: var(--term-header-bg);
  color: var(--term-title-fg);
  border-bottom-color: var(--border);
}

.epi-window {
  top: 64px;
  left: 72px;
  width: min(760px, calc(100vw - 96px));
  height: min(500px, calc(100vh - var(--panel-height) - 80px));
}

.epi-toolbar {
  display: flex;
  align-items: center;
  padding: 8px 12px;
  background: var(--term-header-bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.epi-url {
  width: 100%;
  height: 30px;
  padding: 0 12px;
  border: none;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--text);
  font-size: 13px;
}

.epi-page {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--bg);
}

.epi-start {
  max-width: 420px;
  margin: 64px auto;
  padding: 0 24px;
  text-align: center;
}

.epi-start h1 {
  margin: 0 0 10px;
  font-size: 1.45rem;
}

.epi-start p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.5;
  font-size: 0.95rem;
}

.info-window {
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: min(640px, calc(100vw - 48px));
  max-height: calc(100vh - var(--panel-height) - 72px);
}

.info-window .term-title-wrap .sym {
  width: 18px;
  height: 18px;
  filter: var(--term-wc-sym-filter);
  opacity: 0.9;
}

.info-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 8px 20px 20px;
}

.info-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 28px;
}

.info-cols h2 {
  margin: 8px 0 12px;
  font-size: 15px;
  font-weight: 700;
}

.info-sw-brand {
  margin: 0 0 8px;
}

.info-sw-brand img {
  display: none;
  width: 100%;
  max-width: 280px;
  height: auto;
  object-fit: contain;
  object-position: left center;
}

html[data-theme="dark"] .info-sw-brand .logo-dark,
html[data-theme="light"] .info-sw-brand .logo-light {
  display: block;
}

.info-field {
  padding: 8px 0;
}

.info-field-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 2px;
  line-height: 1.3;
}

.info-field-value {
  font-size: 14px;
  font-weight: 500;
  line-height: 1.35;
}

@media (max-width: 560px) {
  .info-cols {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .term-cursor {
    animation: none;
  }
}

/* Responsive */
@media (max-width: 900px) {
  .distro-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 560px) {
  .distro-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .main {
    padding: 32px 16px 64px;
  }

  .qs-toggles {
    grid-template-columns: 1fr;
  }

  .catalog-row .meta {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}