/* Dark Synapse / G Hub look, matching the GTK desktop app. */

:root {
  --accent-bg: #2ec5b5;
  --accent: #4fd8c9;
  --accent-fg: #08130f;
  --window-bg: #0f1011;
  --header-bg: #0b0c0d;
  --panel-bg: #18191b;
  --card-bg: #202224;
  --card-hover: #2a2c2e;
  --border: rgba(255, 255, 255, 0.07);
  --text: #f2f2f2;
  --text-dim: rgba(255, 255, 255, 0.55);
  --text-faint: rgba(255, 255, 255, 0.5);
  --warning: #f5c211;
  --danger: #ff6b6b;
  --radius: 12px;
  color-scheme: dark;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  background: var(--window-bg);
  color: var(--text);
  font: 14px/1.4 "Inter", "Cantarell", "Noto Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  overflow: hidden;
}

button, select, input { font: inherit; color: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

/* -- header ----------------------------------------------------------------- */

.headerbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  background: var(--header-bg);
}
.header-start { display: flex; gap: 8px; align-items: center; min-width: 0; }
.header-end { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }
.header-title { text-align: center; }
.device-title { font-weight: 800; letter-spacing: 2px; }
.device-subtitle { font-size: 11px; color: var(--text-dim); }

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 8px;
  background: transparent;
}
.icon-button:hover { background: rgba(255, 255, 255, 0.08); }
.icon-button svg { width: 16px; height: 16px; fill: currentColor; }

.linked { display: flex; }
.linked > select { border-radius: 8px 0 0 8px; }
.linked .icon-button { border-radius: 0 8px 8px 0; background: var(--card-bg); }
.linked .icon-button:hover { background: var(--card-hover); }

select {
  min-width: 0;
  max-width: 220px;
  height: 34px;
  padding: 0 28px 0 12px;
  border: 0;
  border-radius: 8px;
  background: var(--card-bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%23ddd' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 8px center / 14px;
  appearance: none;
}
select:hover { background-color: var(--card-hover); }
select:disabled { opacity: 0.5; }

.battery { display: flex; gap: 6px; align-items: center; font-weight: 700; }
.battery-icon { width: 22px; height: 14px; }
.battery.low { color: var(--danger); }
.battery.charging { color: var(--accent); }

.menu-wrap { position: relative; }
.menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 20;
  min-width: 260px;
  padding: 6px;
  border-radius: var(--radius);
  background: #26282a;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}
.menu.end { left: auto; right: 0; }
.menu button {
  display: block;
  width: 100%;
  padding: 8px 12px;
  border: 0;
  border-radius: 8px;
  background: none;
  text-align: left;
}
.menu button:hover, .menu button:focus-visible { background: rgba(255, 255, 255, 0.08); outline: none; }
.menu hr { border: 0; border-top: 1px solid var(--border); margin: 6px 4px; }

/* -- tabs ------------------------------------------------------------------- */

.tabbar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px 12px 10px;
  background: var(--header-bg);
}
.tab {
  padding: 6px 18px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
}
.tab:hover { color: #fff; background: rgba(255, 255, 255, 0.06); }
.tab[aria-selected="true"] { background: var(--accent-bg); color: var(--accent-fg); }
.tabbar.disabled .tab { pointer-events: none; opacity: 0.4; }

/* -- layout ----------------------------------------------------------------- */

main { flex: 1; min-height: 0; display: flex; }

.settings {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 16px;
  padding: 16px;
}
.side-panel {
  flex: 0 0 400px;
  overflow-y: auto;
  scrollbar-width: thin;
  border-radius: 14px;
  background: var(--panel-bg);
}
.panel { display: flex; flex-direction: column; gap: 14px; padding: 22px; }
.panel-title { margin: 0; font-size: 20px; font-weight: 800; letter-spacing: 2px; }
.panel-subtitle { margin: 0; color: var(--text-dim); }
.section-label {
  margin-top: 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.5px;
  color: var(--text-faint);
}
.section-label:empty { display: none; }

.mouse-stage {
  position: relative;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  border-radius: 14px;
  background-image: radial-gradient(circle, rgba(255, 255, 255, 0.08) 1px, transparent 1.6px);
  background-size: 20px 20px;
}

/* -- status page ------------------------------------------------------------ */

.status-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: safe center;
  overflow-y: auto;
  gap: 12px;
  padding: 24px 16px;
  text-align: center;
}
.status-page h1 { margin: 12px 0 0; font-size: 26px; }
.status-page p { margin: 0; max-width: 560px; color: var(--text-dim); }
.status-icon { opacity: 0.9; }
.linux-help { width: min(640px, 100%); text-align: left; }
.steps { margin: 8px 0 0; padding-left: 22px; display: flex; flex-direction: column; gap: 14px; color: var(--text-dim); }
.steps li::marker { color: var(--accent); font-weight: 800; }
.steps strong { display: block; color: var(--text); margin-bottom: 2px; }
.command {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 8px;
  padding: 10px 10px 10px 14px;
  border-radius: 8px;
  background: var(--card-bg);
}
.command pre {
  flex: 1;
  min-width: 0;
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  color: var(--text);
  font: 12px/1.6 ui-monospace, "JetBrains Mono", monospace;
  user-select: all;
}
.command .button { flex: none; padding: 5px 12px; font-size: 12px; }
.small-print { margin: 16px 0 0 !important; font-size: 12px; text-align: left; }
.small-print a { color: var(--accent); }

/* -- widgets ---------------------------------------------------------------- */

.button {
  padding: 7px 14px;
  border: 0;
  border-radius: 8px;
  background: var(--card-hover);
  font-weight: 600;
}
.button:hover { background: #34373a; }
.button.suggested, .pill.suggested { background: var(--accent-bg); color: var(--accent-fg); }
.button.suggested:hover, .pill.suggested:hover { background: var(--accent); }
.button.destructive { background: #c01c28; color: #fff; }
.pill { margin-top: 12px; padding: 10px 28px; border: 0; border-radius: 999px; font-weight: 700; }
.flat-button {
  align-self: flex-start;
  padding: 7px 12px;
  border: 0;
  border-radius: 8px;
  background: none;
  font-weight: 600;
}
.flat-button:hover { background: rgba(255, 255, 255, 0.07); }

.boxed-list {
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--card-bg);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
}
.row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 54px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
}
.row:first-child { border-top: 0; }
.row-text { flex: 1; min-width: 0; }
.row-subtitle { font-size: 12px; color: var(--text-dim); }
button.row {
  width: 100%;
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
  background: none;
  text-align: left;
}
button.row:first-child { border-top: 0; }
button.row:hover { background: rgba(255, 255, 255, 0.04); }
.row.current { background: rgba(46, 197, 181, 0.14); }
.row .check { width: 16px; height: 16px; color: var(--accent); visibility: hidden; }
.row.current .check { visibility: visible; }
.row.disabled-row { opacity: 0.45; }
.row select { max-width: 160px; }

.spin { display: flex; align-items: center; gap: 4px; }
.spin input {
  width: 64px;
  height: 32px;
  padding: 0 8px;
  border: 0;
  border-radius: 8px 0 0 8px;
  background: rgba(255, 255, 255, 0.06);
  text-align: left;
  -moz-appearance: textfield;
}
.spin input::-webkit-inner-spin-button, .spin input::-webkit-outer-spin-button { -webkit-appearance: none; margin: 0; }
.spin input:focus { outline: 2px solid var(--accent-bg); outline-offset: -2px; }
.spin button {
  width: 32px;
  height: 32px;
  border: 0;
  background: rgba(255, 255, 255, 0.06);
  font-size: 18px;
  line-height: 1;
}
.spin button:last-child { border-radius: 0 8px 8px 0; }
.spin button:hover { background: rgba(255, 255, 255, 0.12); }
.spin button:disabled { opacity: 0.35; cursor: default; }
.spin.compact input { width: 70px; }

.color-input {
  width: 40px;
  height: 32px;
  padding: 4px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  cursor: pointer;
}
.color-input::-webkit-color-swatch-wrapper { padding: 0; }
.color-input::-webkit-color-swatch { border: 0; border-radius: 4px; }
.color-input::-moz-color-swatch { border: 0; border-radius: 4px; }

.radio {
  appearance: none;
  flex: none;
  width: 20px;
  height: 20px;
  margin: 0;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  cursor: pointer;
}
.radio:checked { border-color: var(--accent-bg); background: radial-gradient(circle, var(--accent-fg) 0 3.5px, var(--accent-bg) 4px); }

.switch {
  appearance: none;
  flex: none;
  position: relative;
  width: 46px;
  height: 26px;
  margin: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: background 0.15s;
}
.switch::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.15s;
}
.switch:checked { background: var(--accent-bg); }
.switch:checked::after { transform: translateX(20px); }

.segmented {
  display: flex;
  overflow: hidden;
  border-radius: 8px;
  background: var(--card-bg);
}
.segmented button {
  flex: 1;
  min-width: 0;
  padding: 8px 4px;
  border: 0;
  border-left: 1px solid rgba(0, 0, 0, 0.35);
  background: none;
  font-weight: 700;
  white-space: nowrap;
}
.segmented button:first-child { border-left: 0; }
.segmented button:hover { background: rgba(255, 255, 255, 0.06); }
.segmented button[aria-pressed="true"] { background: var(--accent-bg); color: var(--accent-fg); }

.big-value { font-size: 34px; font-weight: 800; }
.level-bar { height: 8px; border-radius: 999px; background: rgba(255, 255, 255, 0.1); overflow: hidden; }
.level-fill { height: 100%; width: 0; border-radius: inherit; background: var(--accent-bg); transition: width 0.3s; }
.level-fill.low { background: var(--danger); }

button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent-bg); outline-offset: 2px; }

/* -- mouse view ------------------------------------------------------------- */

.mouse-svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.region > * { fill: transparent; cursor: pointer; transition: fill 0.12s; }
.no-callouts .region > * { cursor: default; }
.region.hovered > * { fill: rgba(46, 197, 181, 0.28); }
.region.selected > * { fill: rgba(46, 197, 181, 0.45); }
.callout-lines polyline { fill: none; stroke: #737373; stroke-width: 1; }
.callout-lines circle { fill: #737373; }
.callout-lines .active polyline { stroke: var(--accent-bg); }
.callout-lines .active circle { fill: var(--accent-bg); }
.callout {
  position: absolute;
  max-width: 34%;
  padding: 4px 8px;
  border: 0;
  border-radius: 6px;
  background: none;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.callout:hover, .callout.selected { color: var(--accent); }
.dpi-badge {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 26px;
  font-weight: 800;
  color: #eee;
  pointer-events: none;
}
.dpi-badge .dot { width: 16px; height: 16px; border-radius: 50%; }

/* -- toasts and dialogs ----------------------------------------------------- */

.toasts {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: max-content;
  max-width: calc(100vw - 32px);
  transform: translateX(-50%);
  pointer-events: none;
}
.toast {
  padding: 10px 18px;
  border-radius: 999px;
  background: #2f3133;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
  font-weight: 600;
  animation: toast-in 0.18s ease-out;
}
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

dialog {
  width: min(420px, calc(100vw - 32px));
  padding: 24px;
  border: 0;
  border-radius: 16px;
  background: #242628;
  color: var(--text);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.55); }
dialog h3 { margin: 0 0 14px; font-size: 18px; text-align: center; }
dialog p { color: var(--text-dim); text-align: center; }
dialog input[type="text"] {
  width: 100%;
  height: 38px;
  padding: 0 12px;
  border: 0;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}
dialog input[type="text"]:focus { outline: 2px solid var(--accent-bg); }
.dialog-buttons { display: flex; gap: 10px; margin-top: 20px; }
.dialog-buttons.reverse { flex-direction: row-reverse; }
.dialog-buttons .button { flex: 1; padding: 9px 14px; }
.about form { display: flex; flex-direction: column; align-items: center; }
.about h3 { margin: 10px 0 0; }
.about .version { margin: 4px 0 8px; }
.about .small { font-size: 12px; }
.about a { color: var(--accent); }

/* -- narrow screens --------------------------------------------------------- */

@media (max-width: 860px) {
  body { overflow: auto; }
  .settings { flex-direction: column; padding: 12px 16px; }
  .side-panel { flex: none; overflow: visible; }
  .mouse-stage { flex: none; height: 380px; order: -1; }
  .headerbar { grid-template-columns: 1fr auto; }
  .header-title { grid-column: 1 / -1; grid-row: 1; }
  .header-start select { max-width: 150px; }
}
@media (max-width: 420px) {
  .panel { padding: 16px; }
  .tabbar { gap: 2px; }
  .tab { padding: 6px 9px; font-size: 11px; letter-spacing: 0.5px; }
  .segmented button { font-size: 12px; }
}