/* Farb- und Größensystem — Dark Mode definiert nur Variablen um. */
:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --text: #1c1c1e;
  --text-dim: #8a8a8e;
  --border: #e4e4e2;
  --accent: #2f9e6e;
  --accent-soft: #e7f4ee;
  --danger: #d64545;
  --danger-soft: #fbeaea;
  --radius: 12px;
  --touch: 44px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161618;
    --surface: #1f1f22;
    --text: #f2f2f4;
    --text-dim: #8a8a90;
    --border: #2c2c30;
    --accent: #3db683;
    --accent-soft: #1d3229;
    --danger: #e06060;
    --danger-soft: #3a2020;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { font: inherit; color: inherit; background: none; border: none; padding: 0; cursor: pointer; }

.screen { max-width: 480px; margin: 0 auto; min-height: 100dvh; }

/* --- PIN-Screen --- */
#pin-screen { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2rem; }
#pin-screen[hidden] { display: none; }
.pin-title { color: var(--text-dim); margin: 0; }
.pin-dots { display: flex; gap: 1rem; }
.pin-dot {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--text-dim);
}
.pin-dot.filled { background: var(--accent); border-color: var(--accent); }
.pin-dots.shake { animation: shake 0.35s; }
@keyframes shake {
  20% { transform: translateX(-8px); } 40% { transform: translateX(8px); }
  60% { transform: translateX(-6px); } 80% { transform: translateX(6px); }
}
.numpad { display: grid; grid-template-columns: repeat(3, 72px); gap: 0.75rem; }
.numpad button {
  height: 72px; border-radius: 50%;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 1.5rem;
}
.numpad button:active { background: var(--accent-soft); }

/* --- Header --- */
.header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: center; gap: 0.25rem;
  padding: 0.75rem 1rem calc(0.75rem);
  padding-top: max(0.75rem, env(safe-area-inset-top));
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.nav-btn { width: var(--touch); height: var(--touch); font-size: 1.75rem; color: var(--text-dim); }
.nav-btn:disabled { opacity: 0.3; }
.date-wrap { position: relative; flex: 1; text-align: center; }
.date-label { min-height: var(--touch); font-size: 1.1rem; font-weight: 600; padding: 0 0.5rem; }
.date-picker-hidden { position: absolute; inset: 0; opacity: 0; pointer-events: none; }
.sync-dot {
  position: absolute; right: 1rem; top: 50%; transform: translateY(-50%);
  width: 9px; height: 9px; border-radius: 50%; background: var(--text-dim); opacity: 0.4;
}
.sync-dot[data-state="pending"] { background: var(--accent); opacity: 1; animation: pulse 1s infinite; }
.sync-dot[data-state="error"] { background: var(--danger); opacity: 1; }
@keyframes pulse { 50% { opacity: 0.3; } }

/* --- Parameterliste --- */
.param-list { padding: 0.5rem 1rem 3rem; }
.category-title {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-dim); margin: 1.5rem 0 0.5rem;
}
.row {
  display: flex; align-items: center; justify-content: space-between; gap: 0.75rem;
  min-height: 56px; padding: 0.4rem 0.9rem; margin-bottom: 0.5rem;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
}
.row-filled { border-color: var(--accent); }
.row[data-action="toggle"] { cursor: pointer; -webkit-tap-highlight-color: transparent; }
.row-label { flex: 1; }

/* Toggle */
.toggle-state {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 50%; font-size: 1.1rem; font-weight: 700;
  border: 2px solid var(--border); color: var(--text-dim);
}
.toggle-on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* Chips (Counter & Mood) */
.chips { display: flex; gap: 0.4rem; }
.chip {
  min-width: var(--touch); height: var(--touch); padding: 0 0.6rem;
  border-radius: 22px; border: 1px solid var(--border);
  color: var(--text-dim); font-weight: 600;
}
.chip-active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.chip-mood { font-size: 1.35rem; border: none; opacity: 0.45; transition: transform 0.1s; }
.chip-mood.chip-active { background: var(--accent-soft); opacity: 1; transform: scale(1.15); }

/* Slider */
.slider-wrap { display: flex; align-items: center; gap: 0.6rem; flex: 1; max-width: 60%; }
.slider-wrap input[type="range"] { flex: 1; accent-color: var(--accent); height: var(--touch); }
.slider-value { min-width: 1.5rem; text-align: center; font-weight: 700; color: var(--accent); }
.slider-value-default { color: var(--text-dim); font-weight: 400; }

.offline-hint { text-align: center; color: var(--text-dim); padding: 2rem 1rem; }

/* --- V2: zweite Chart-Farbe --- */
:root { --chart-2: #5b7fd4; }
@media (prefers-color-scheme: dark) { :root { --chart-2: #7495e0; } }

/* --- Tab-Bar --- */
.tab-bar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 20;
  display: flex; justify-content: center; gap: 0.5rem;
  background: var(--bg); border-top: 1px solid var(--border);
  padding: 0.35rem 1rem calc(0.35rem + env(safe-area-inset-bottom));
}
.tab {
  display: flex; flex-direction: column; align-items: center; gap: 0.1rem;
  min-width: 96px; min-height: 52px; justify-content: center;
  color: var(--text-dim); font-size: 1.15rem; border-radius: var(--radius);
}
.tab span { font-size: 0.7rem; font-weight: 600; }
.tab-active { color: var(--accent); background: var(--accent-soft); }
#day-screen, #dashboard-screen { padding-bottom: 76px; } /* Platz für die Tab-Bar — nicht auf dem PIN-Screen */

/* --- Dashboard-Grundgerüst --- */
.dash-header { justify-content: center; }
.status-line {
  display: flex; align-items: center; justify-content: center; gap: 0.5rem;
  color: var(--text-dim); font-size: 0.8rem; padding: 0.5rem 1rem 0;
  max-width: 480px; margin: 0 auto;
}
.status-line button { color: var(--accent); font-weight: 600; min-height: var(--touch); }
.status-line .sync-now.spinning { animation: spin 1s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.segmented {
  position: sticky; top: 0; z-index: 10;
  display: flex; gap: 0.25rem; max-width: 480px; margin: 0 auto;
  padding: 0.5rem 1rem; background: var(--bg);
}
.segmented button {
  flex: 1; min-height: var(--touch); border-radius: var(--radius);
  border: 1px solid var(--border); color: var(--text-dim); font-weight: 600;
}
.segmented .seg-active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

/* --- Karten & Skeleton --- */
.dash-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0.9rem; margin-bottom: 0.75rem;
}
.dash-card h3 { margin: 0 0 0.15rem; font-size: 0.9rem; }
.dash-card .card-sub { color: var(--text-dim); font-size: 0.78rem; margin: 0 0 0.6rem; }
/* Chart.js responsive+maintainAspectRatio:false needs a positioned ancestor with a fixed
   height, otherwise the ResizeObserver feedback-loops the canvas to unbounded height. */
.chart-wrap { position: relative; height: 180px; }
.chart-wrap canvas { width: 100% !important; height: 100% !important; }
.skeleton {
  border-radius: var(--radius); background: var(--border);
  animation: pulse 1.2s ease-in-out infinite; min-height: 120px; margin-bottom: 0.75rem;
}
@media (prefers-reduced-motion: reduce) {
  .skeleton, .status-line .sync-now.spinning { animation: none; }
}

/* --- Score-Ringe --- */
.score-rings { display: flex; justify-content: space-between; gap: 0.5rem; }
.ring { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 0.2rem; text-align: center; }
.ring svg { width: 84px; height: 84px; }
.ring .ring-bg { stroke: var(--border); }
.ring .ring-fg { stroke: var(--accent); transition: stroke-dashoffset 0.3s; }
.ring .ring-num { font-size: 1.3rem; font-weight: 700; font-variant-numeric: tabular-nums; fill: var(--text); }
.ring .ring-label { font-size: 0.72rem; color: var(--text-dim); font-weight: 600; }
.ring .ring-delta { font-size: 0.72rem; font-weight: 600; }
.delta-up { color: var(--accent); }
.delta-down { color: var(--danger); }

/* --- Korrelationen --- */
.corr-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 0.75rem; }
.corr-row { margin-bottom: 0.8rem; }
.corr-row .corr-title { display: flex; justify-content: space-between; font-size: 0.82rem; margin-bottom: 0.25rem; }
.corr-bar { display: flex; align-items: center; gap: 0.5rem; font-size: 0.78rem; color: var(--text-dim); margin-bottom: 0.2rem; }
.corr-bar .bar { height: 10px; border-radius: 5px; background: var(--accent); min-width: 2px; }
.corr-bar.bar-ohne .bar { background: var(--border); }
.corr-note { color: var(--text-dim); font-size: 0.72rem; margin-top: 0.6rem; }
.empty-card { text-align: center; padding: 2rem 1rem; }
.empty-card p { color: var(--text-dim); }
.error-banner { border-color: var(--danger); }
.error-banner p { color: var(--text); margin: 0 0 0.6rem; }
.btn-primary {
  display: inline-block; min-height: var(--touch); padding: 0.6rem 1.4rem;
  border-radius: var(--radius); background: var(--accent); color: #fff; font-weight: 600;
}