:root {
  --bg: #07090d;
  --card: rgba(255, 255, 255, .055);
  --card-b: rgba(255, 255, 255, .09);
  --track: rgba(255, 255, 255, .11);
  --text: #f4f6fb;
  --muted: #8b93a7;
  --accent: #22d3ee;
  --accent2: #6366f1;
  --accent-rgb: 34, 211, 238;
  --accent2-rgb: 99, 102, 241;
  --danger: #ff5d6c;
  --ok: #34d399;
  --r: 22px;
}
:root[data-mode="amoled"] { --bg: #000; --card: rgba(255, 255, 255, .045); }
:root[data-mode="light"] {
  --bg: #eef1f6;
  --card: rgba(255, 255, 255, .72);
  --card-b: rgba(15, 23, 42, .09);
  --track: rgba(15, 23, 42, .12);
  --text: #0f172a;
  --muted: #5b6478;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  -webkit-user-select: none;
  user-select: none;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(700px 420px at 50% -8%, rgba(var(--accent-rgb), .26), transparent 70%),
    radial-gradient(520px 380px at 105% 62%, rgba(var(--accent2-rgb), .15), transparent 70%);
}
.hidden { display: none !important; }

/* iOS: Eingabefelder müssen markier-/tippbar bleiben und dürfen unter 16px nicht reinzoomen */
input, textarea { -webkit-user-select: text; user-select: text; font-size: 16px; }
button, input, select, textarea, .slider { touch-action: manipulation; }
html { touch-action: manipulation; }

#app {
  position: relative;
  z-index: 1;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  padding-top: env(safe-area-inset-top);
  max-width: 560px;
  margin: 0 auto;
}

/* ---------- Kopfzeile ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px 8px;
}
.brand { display: flex; align-items: center; gap: 9px; font-size: 18px; }
.brand .logo { margin: 0; }
.brand b { letter-spacing: .2px; }
.brand small { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: 2px; margin-top: 3px; }
.logo {
  display: block; flex: none; margin: 0 auto;
  width: 26px; height: 26px; border-radius: 9px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 18px rgba(var(--accent-rgb), .55);
  position: relative;
}
.logo::after {
  content: ""; position: absolute; inset: 6px; border-radius: 50%;
  border: 2.5px solid rgba(255, 255, 255, .92); border-bottom-color: transparent;
}
.logo.big { width: 56px; height: 56px; border-radius: 18px; }
.logo.big::after { inset: 13px; border-width: 4px; }

.chip {
  display: flex; align-items: center; gap: 8px;
  background: var(--card); border: 1px solid var(--card-b);
  color: var(--text); font: inherit; font-size: 13px; font-weight: 600;
  padding: 8px 13px; border-radius: 99px; cursor: pointer;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  max-width: 55vw;
}
.chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dot { width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none; }
.chip[data-state="on"] .dot { background: var(--ok); box-shadow: 0 0 10px var(--ok); animation: pulse 2s infinite; }
.chip[data-state="busy"] .dot { background: #fbbf24; animation: pulse 1s infinite; }
.chip[data-state="demo"] .dot { background: var(--accent); box-shadow: 0 0 10px var(--accent); }
@keyframes pulse { 50% { opacity: .35; } }

/* ---------- Ansichten ---------- */
main {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding: 4px 16px 18px;
}
.view { display: none; }
.view.active { display: block; animation: fade .28s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } }
.view-title { margin: 8px 4px 14px; font-size: 26px; letter-spacing: -.3px; }

.card {
  background: var(--card);
  border: 1px solid var(--card-b);
  border-radius: var(--r);
  padding: 18px;
  margin-bottom: 14px;
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.card h3 { margin: 0 0 12px; font-size: 13px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: 1.4px; }
.card h3.sub { margin-top: 18px; }
.card p { margin: 0 0 12px; line-height: 1.45; }
.card.warn { border-color: rgba(255, 93, 108, .5); }
.hint { color: var(--muted); font-size: 14px; }

/* ---------- Tacho ---------- */
.gauge-card { position: relative; padding: 10px 6px 14px; }
#gauge { width: 100%; height: auto; display: block; }
.g-track { fill: none; stroke: var(--track); stroke-width: 14; stroke-linecap: round; }
.g-arc {
  fill: none; stroke-width: 14; stroke-linecap: round;
  filter: drop-shadow(0 0 9px rgba(var(--accent-rgb), .75));
}
.g-tick { stroke: var(--muted); stroke-width: 1.4; opacity: .4; transition: stroke .2s, opacity .2s; }
.g-tick.major { stroke-width: 2.4; opacity: .7; }
.g-tick.on { stroke: var(--accent); opacity: 1; }
.g-lbl { fill: var(--muted); font-size: 11px; font-weight: 600; text-anchor: middle; dominant-baseline: central; }
.g-knob { fill: #fff; filter: drop-shadow(0 0 7px var(--accent)); }

.gauge-readout { position: absolute; left: 0; right: 0; top: 36%; text-align: center; pointer-events: none; }
#speedNum {
  font-size: 92px; line-height: 1; font-weight: 800; letter-spacing: -3px;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 0 34px rgba(var(--accent-rgb), .45);
}
#speedUnit { margin-top: 2px; font-size: 14px; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--muted); }
.gauge-foot { position: absolute; left: 0; right: 0; bottom: 16px; display: flex; justify-content: center; }
.pill {
  background: rgba(var(--accent-rgb), .14); border: 1px solid rgba(var(--accent-rgb), .45);
  color: var(--text); font: inherit; font-size: 12px; font-weight: 700; letter-spacing: 1px;
  padding: 7px 14px; border-radius: 99px; cursor: pointer; text-transform: uppercase;
}

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
.stat {
  background: var(--card); border: 1px solid var(--card-b); border-radius: 16px;
  padding: 11px 6px; text-align: center; min-width: 0;
}
.stat span { display: block; font-size: 10px; letter-spacing: 1.2px; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.stat b { font-size: 16px; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- Regler ---------- */
.control .card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.control .card-head h3 { margin: 0; }
.stepper { display: flex; align-items: center; gap: 12px; }
.level-val { min-width: 74px; text-align: center; }
.level-val b { font-size: 40px; font-weight: 800; font-variant-numeric: tabular-nums; }
.level-val span { font-size: 15px; color: var(--muted); margin-left: 2px; }
.round {
  width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--card-b);
  background: var(--card); color: var(--text); font-size: 24px; line-height: 1; cursor: pointer;
}
.round:active { background: rgba(var(--accent-rgb), .25); }

.slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 44px; margin: 8px 0 0; background: transparent; --r: .45;
  --p: calc(17px + (100% - 34px) * var(--r));
}
.slider:focus { outline: none; }
.slider::-webkit-slider-runnable-track {
  height: 12px; border-radius: 99px;
  background: linear-gradient(90deg, var(--accent2), var(--accent)) left / var(--p) 100% no-repeat, var(--track);
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none; width: 34px; height: 34px; margin-top: -11px; border-radius: 50%;
  background: #fff; border: 0;
  box-shadow: 0 2px 10px rgba(0, 0, 0, .45), 0 0 0 6px rgba(var(--accent-rgb), .28), 0 0 18px rgba(var(--accent-rgb), .6);
}
.slider::-moz-range-track { height: 12px; border-radius: 99px; background: var(--track); }
.slider::-moz-range-progress { height: 12px; border-radius: 99px; background: linear-gradient(90deg, var(--accent2), var(--accent)); }
.slider::-moz-range-thumb { width: 34px; height: 34px; border-radius: 50%; background: #fff; border: 0; box-shadow: 0 0 0 6px rgba(var(--accent-rgb), .28); }
.slider-ends { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; font-weight: 600; padding: 0 4px; margin-bottom: 8px; }

.row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 0 2px; border-top: 1px solid var(--card-b); margin-top: 6px; }
.row.slim { border-top: 0; padding: 6px 0 10px; margin: 0; }
.row-text b { display: block; font-size: 16px; }
.row-text small { color: var(--muted); font-size: 12.5px; }

.switch { position: relative; width: 52px; height: 32px; flex: none; display: inline-block; }
.switch input { position: absolute; inset: 0; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; z-index: 2; }
.switch span {
  position: absolute; inset: 0; border-radius: 99px; background: var(--track); transition: background .2s;
}
.switch span::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 26px; height: 26px; border-radius: 50%;
  background: #fff; transition: transform .2s; box-shadow: 0 1px 4px rgba(0, 0, 0, .4);
}
.switch input:checked + span { background: linear-gradient(135deg, var(--accent2), var(--accent)); box-shadow: 0 0 14px rgba(var(--accent-rgb), .5); }
.switch input:checked + span::after { transform: translateX(20px); }

.banner {
  font-size: 13.5px; line-height: 1.45; color: var(--muted);
  border: 1px dashed var(--card-b); border-radius: 16px; padding: 12px 14px; margin-bottom: 8px;
}
.banner:empty { display: none; }
.banner b { color: var(--text); }

/* ---------- Einstellungen ---------- */
.swatches { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; margin-bottom: 14px; }
.swatch {
  aspect-ratio: 1; border-radius: 50%; border: 3px solid transparent; cursor: pointer; padding: 0;
  background: linear-gradient(135deg, var(--a), var(--b));
}
.swatch.sel { border-color: var(--text); box-shadow: 0 0 14px var(--a); }

.field { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; font-size: 15.5px; }
.field > span:first-child { flex: none; }
.field input[type="color"] { width: 54px; height: 34px; border: 0; border-radius: 10px; background: none; padding: 0; cursor: pointer; }
.num {
  width: 90px; background: var(--card); border: 1px solid var(--card-b); color: var(--text);
  font: inherit; font-size: 16px; padding: 8px 10px; border-radius: 12px; text-align: right;
}
.seg { display: flex; background: var(--track); border-radius: 12px; padding: 3px; gap: 2px; }
.seg button {
  border: 0; background: transparent; color: var(--muted); font: inherit; font-size: 13.5px; font-weight: 600;
  padding: 7px 12px; border-radius: 9px; cursor: pointer;
}
.seg button.sel { background: linear-gradient(135deg, var(--accent2), var(--accent)); color: #fff; box-shadow: 0 2px 10px rgba(var(--accent-rgb), .35); }

.btn {
  display: inline-block; text-align: center; text-decoration: none;
  background: linear-gradient(135deg, var(--accent2), var(--accent)); color: #fff;
  border: 0; border-radius: 14px; padding: 13px 18px; font: inherit; font-size: 15px; font-weight: 700;
  cursor: pointer; box-shadow: 0 6px 22px rgba(var(--accent-rgb), .3);
}
.btn:disabled { opacity: .4; cursor: default; box-shadow: none; }
.btn.ghost { background: var(--track); color: var(--text); box-shadow: none; }
.btn.small { padding: 9px 13px; font-size: 13px; border-radius: 11px; }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.btn-row .btn { flex: 1 1 auto; }
.card > .btn { width: 100%; margin-top: 4px; }
.link { background: none; border: 0; color: var(--muted); font: inherit; font-size: 13px; text-decoration: underline; cursor: pointer; margin-top: 14px; }
.about { text-align: center; color: var(--muted); font-size: 12px; margin: 16px 0 6px; }

/* ---------- Bluetooth ---------- */
details { margin-top: 6px; color: var(--muted); font-size: 14px; }
details summary { cursor: pointer; padding: 6px 0; }
textarea {
  width: 100%; margin-top: 6px; background: var(--card); border: 1px solid var(--card-b); color: var(--text);
  border-radius: 12px; padding: 10px; font: 16px ui-monospace, Menlo, Consolas, monospace; resize: vertical;
  -webkit-user-select: text; user-select: text;
}
.kv { font-size: 14px; display: grid; grid-template-columns: auto 1fr; gap: 4px 12px; }
.kv span:nth-child(odd) { color: var(--muted); }
.kv span:nth-child(even) { word-break: break-all; -webkit-user-select: text; user-select: text; }

.svc { border-top: 1px solid var(--card-b); padding: 10px 0 4px; }
.svc-name { font-weight: 700; font-size: 14px; }
.svc-name small { display: block; font-weight: 500; color: var(--muted); font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 11.5px; word-break: break-all; }
.chr { padding: 8px 0 8px 10px; border-left: 2px solid rgba(var(--accent-rgb), .4); margin: 8px 0 8px 4px; }
.chr-id { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px; word-break: break-all; }
.props { display: flex; flex-wrap: wrap; gap: 5px; margin: 6px 0; }
.prop { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; padding: 2px 8px; border-radius: 99px; background: var(--track); color: var(--muted); }
.prop.w { color: #fbbf24; }
.prop.n { color: var(--accent); }
.chr-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.chr-actions .btn { padding: 6px 11px; font-size: 12px; border-radius: 9px; }
.chr-write { display: flex; gap: 6px; margin-top: 6px; }
.chr-write input {
  flex: 1; min-width: 0; background: var(--card); border: 1px solid var(--card-b); color: var(--text);
  border-radius: 9px; padding: 7px 9px; font: 16px ui-monospace, Menlo, Consolas, monospace;
  -webkit-user-select: text; user-select: text;
}
.chr-val { font: 12px ui-monospace, Menlo, Consolas, monospace; color: var(--ok); margin-top: 5px; word-break: break-all; -webkit-user-select: text; user-select: text; }

.log {
  height: 250px; overflow-y: auto; background: rgba(0, 0, 0, .28); border-radius: 12px; padding: 9px 10px; margin-bottom: 12px;
  font: 11.5px/1.5 ui-monospace, Menlo, Consolas, monospace; -webkit-user-select: text; user-select: text;
}
:root[data-mode="light"] .log { background: rgba(15, 23, 42, .06); }
.log div { word-break: break-all; }
.log .t { color: var(--muted); }
.log .rx { color: var(--ok); }
.log .tx { color: #fbbf24; }
.log .err { color: var(--danger); }
.log .info { color: var(--accent); }

/* ---------- Tab-Leiste ---------- */
.tabbar {
  display: flex; gap: 6px; padding: 8px 12px calc(8px + env(safe-area-inset-bottom));
  background: var(--card); border-top: 1px solid var(--card-b);
  backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px);
}
.tab {
  flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
  background: none; border: 0; color: var(--muted); font: inherit; font-size: 11px; font-weight: 600;
  padding: 7px 0; border-radius: 14px; cursor: pointer;
}
.tab svg { width: 24px; height: 24px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tab.active { color: var(--accent); background: rgba(var(--accent-rgb), .12); }

/* ---------- PIN-Sperre ---------- */
.lock {
  position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center;
  background:
    radial-gradient(700px 420px at 50% -8%, rgba(var(--accent-rgb), .3), transparent 70%),
    var(--bg);
  padding: env(safe-area-inset-top) 20px env(safe-area-inset-bottom);
}
.lock-inner { width: 100%; max-width: 330px; text-align: center; }
.lock-inner h2 { margin: 16px 0 4px; font-size: 24px; }
.lock-inner p { margin: 0 0 18px; min-height: 20px; color: var(--muted); font-size: 14px; }
.dots { display: flex; justify-content: center; gap: 14px; margin-bottom: 26px; min-height: 16px; }
.dots i { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--muted); transition: all .15s; }
.dots i.on { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 12px var(--accent); }
.dots.shake { animation: shake .4s; }
@keyframes shake { 20%, 60% { transform: translateX(-10px); } 40%, 80% { transform: translateX(10px); } }
.keypad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; justify-items: center; margin-bottom: 18px; }
.keypad button {
  width: 76px; height: 76px; border-radius: 50%; border: 1px solid var(--card-b); background: var(--card);
  color: var(--text); font: inherit; font-size: 28px; font-weight: 500; cursor: pointer;
}
.keypad button:active { background: rgba(var(--accent-rgb), .3); }
.keypad button.aux { font-size: 14px; border-color: transparent; background: transparent; color: var(--muted); }
.lock .btn { width: 100%; }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: calc(90px + env(safe-area-inset-bottom)); transform: translate(-50%, 20px);
  background: var(--text); color: var(--bg); padding: 11px 18px; border-radius: 99px; font-size: 14px; font-weight: 600;
  opacity: 0; pointer-events: none; transition: all .25s; z-index: 60; max-width: 88vw; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (max-height: 700px) {
  #speedNum { font-size: 76px; }
  .keypad button { width: 64px; height: 64px; font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}