/* ═══════════════════════════════════════════════════════════
   Caravan Leveler — Tesla Dark Mode
   Diepzwart canvas, dunne lijnen, veel witruimte.
   Kleuren:
     --ok    Tesla-groen  → binnen tolerantie (waterpas)
     --warn  amber        → bijna goed
     --crit  Tesla-rood   → duidelijk scheef
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #111111;
  --panel: #1a1a1a;
  --line: #2e2e2e;
  --line-soft: #222222;
  --text: #f4f4f4;
  --text-dim: #8a8a8a;
  --ok: #12b76a;
  --warn: #e8b931;
  --crit: #e82127;

  /* schaal van de waterpas: hoeveel graden = rand van de cirkel */
  --bubble-size: clamp(28px, 5vmin, 44px);
}

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

/* Het hidden-attribuut moet winnen van .screen { display: flex },
   anders zijn beide schermen tegelijk "zichtbaar". */
[hidden] { display: none !important; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Gotham SSm", "Inter", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
  user-select: none;
}

.screen {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 2rem;
}

.brand {
  font-size: clamp(1.1rem, 2.5vw, 1.6rem);
  font-weight: 300;
  letter-spacing: 0.55em;
  text-indent: 0.55em; /* compenseert letter-spacing van laatste letter */
  color: var(--text);
}
.brand.small { font-size: 0.85rem; letter-spacing: 0.45em; }

.subtitle {
  color: var(--text-dim);
  font-weight: 300;
  font-size: 1rem;
  letter-spacing: 0.05em;
}

/* ── Pincode-invoer ─────────────────────────────────────── */
.pin-row { display: flex; gap: 1rem; }

.pin-digit {
  width: clamp(3.2rem, 9vw, 4.5rem);
  height: clamp(4rem, 11vw, 5.5rem);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  font-weight: 300;
  text-align: center;
  outline: none;
  caret-color: transparent;
  transition: border-color 0.2s;
}
.pin-digit:focus { border-color: var(--text-dim); }

.pair-error {
  color: var(--crit);
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  min-height: 1.2em;
}

.btn-primary {
  background: transparent;
  border: 1px solid var(--text);
  border-radius: 999px;
  color: var(--text);
  padding: 0.9rem 4rem;
  font-size: 0.9rem;
  letter-spacing: 0.35em;
  text-indent: 0.35em;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
}
.btn-primary:hover { background: var(--text); color: var(--bg); }
.btn-primary:disabled { opacity: 0.35; cursor: default; }

/* ── Dashboard-layout ───────────────────────────────────── */
#screen-level { justify-content: space-between; gap: 0; padding: 1.2rem 2rem; }

.topbar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.conn-status {
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  color: var(--ok);
}
.conn-status.lost { color: var(--crit); }

/* ── De waterpas zelf ───────────────────────────────────── */
.level-stage {
  position: relative;
  flex: 1;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
}

.level-circle {
  position: relative;
  /* zo groot mogelijk maar altijd rond en passend op het scherm */
  width: min(62vmin, 100%);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--line);
  transition: border-color 0.4s, box-shadow 0.4s;
}
.level-circle.ok {
  border-color: var(--ok);
  box-shadow: 0 0 60px rgba(18, 183, 106, 0.15) inset, 0 0 40px rgba(18, 183, 106, 0.08);
}
.level-circle.crit { border-color: rgba(232, 33, 39, 0.55); }

.ring {
  position: absolute;
  inset: 0;
  margin: auto;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  pointer-events: none;
}
.ring-outer { width: 75%; height: 75%; }
.ring-mid   { width: 45%; height: 45%; }
/* de "target"-zone: bubbel hierbinnen = waterpas */
.ring-target {
  width: 18%; height: 18%;
  border-color: var(--line);
  transition: border-color 0.4s, background 0.4s;
}
.level-circle.ok .ring-target {
  border-color: var(--ok);
  background: rgba(18, 183, 106, 0.08);
}

.crosshair { position: absolute; background: var(--line-soft); pointer-events: none; }
.crosshair-h { top: 50%; left: 4%; right: 4%; height: 1px; }
.crosshair-v { left: 50%; top: 4%; bottom: 4%; width: 1px; }

/* ── De bubbel ──────────────────────────────────────────── */
.bubble {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--bubble-size);
  height: var(--bubble-size);
  margin: calc(var(--bubble-size) / -2) 0 0 calc(var(--bubble-size) / -2);
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #ffffff 0%, #e8e8e8 55%, #c9c9c9 100%);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.6), 0 0 22px rgba(255, 255, 255, 0.18);
  /* positie wordt via transform gezet in JS (gesmoothed met rAF) */
  will-change: transform;
}
.level-circle.ok .bubble {
  background: radial-gradient(circle at 32% 30%, #ffffff 0%, #b8f5d5 55%, #12b76a 130%);
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.6), 0 0 28px rgba(18, 183, 106, 0.45);
}

/* ── Richtingshints (◀ LINKS OMHOOG etc.) ───────────────── */
.hint {
  position: absolute;
  font-size: clamp(0.8rem, 1.8vw, 1.05rem);
  font-weight: 400;
  letter-spacing: 0.25em;
  color: var(--warn);
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
  pointer-events: none;
}
.hint.visible { opacity: 1; }
.hint.crit { color: var(--crit); }
.hint-top    { top: 4%;    left: 50%; transform: translateX(-50%); }
.hint-bottom { bottom: 4%; left: 50%; transform: translateX(-50%); }
.hint-left   { left: 3%;   top: 50%;  transform: translateY(-50%); }
.hint-right  { right: 3%;  top: 50%;  transform: translateY(-50%); }

/* ── Numerieke uitlezing onderin ────────────────────────── */
.readouts {
  width: 100%;
  max-width: 900px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 2rem;
  padding: 1rem 0 0.5rem;
  border-top: 1px solid var(--line-soft);
}

.readout { display: flex; flex-direction: column; align-items: center; gap: 0.3rem; }

.readout-label {
  font-size: 0.7rem;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
  color: var(--text-dim);
}

.readout-value {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 200;
  font-variant-numeric: tabular-nums; /* voorkomt 'dansen' van cijfers */
}
.readout-value.ok   { color: var(--ok); }
.readout-value.warn { color: var(--warn); }
.readout-value.crit { color: var(--crit); }

.readout-hint {
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  min-height: 1em;
}

.status-text {
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  letter-spacing: 0.45em;
  text-indent: 0.45em;
  font-weight: 300;
  color: var(--text-dim);
  transition: color 0.4s;
}
.status-text.ok { color: var(--ok); }