:root {
  --bg: #f3f4f6;
  --card: #ffffff;
  --ink: #111827;
  --muted: #6b7280;
  --line: #e5e7eb;
  --primary: #1f2937;
  --accent: #2563eb;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --radius: 14px;
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--ink); font-size: 16px;
  padding-bottom: env(safe-area-inset-bottom);
}
#app { max-width: 720px; margin: 0 auto; }

/* Header */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--primary); color: #fff;
  padding: calc(14px + env(safe-area-inset-top)) 16px 14px;
  display: flex; align-items: center; justify-content: space-between;
}
.topbar h1 { font-size: 18px; margin: 0; font-weight: 600; }
.topbar .right { display: flex; gap: 10px; align-items: center; }
.linkbtn { background: none; border: none; color: #cbd5e1; font-size: 14px; cursor: pointer; padding: 6px; }

/* Content */
.content { padding: 16px; }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; margin-bottom: 12px;
}
.card.tap { cursor: pointer; }
.card.tap:active { background: #fafafa; }

h2 { font-size: 16px; margin: 0 0 12px; }
.muted { color: var(--muted); font-size: 14px; }
.row { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.stack > * + * { margin-top: 4px; }

/* Forms */
label { display: block; font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
input, select, textarea {
  width: 100%; padding: 12px; font-size: 16px; border: 1px solid var(--line);
  border-radius: 10px; background: #fff; color: var(--ink); font-family: inherit;
}
textarea { min-height: 70px; resize: vertical; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.grid3 { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 8px; align-items: end; }

/* Buttons */
button.btn {
  width: 100%; padding: 14px; font-size: 16px; font-weight: 600;
  border: none; border-radius: 12px; background: var(--accent); color: #fff; cursor: pointer;
}
button.btn:active { opacity: .85; }
button.btn.secondary { background: #e5e7eb; color: var(--ink); }
button.btn.danger { background: var(--red); }
button.btn.small { width: auto; padding: 8px 12px; font-size: 14px; }
.btnrow { display: flex; gap: 8px; margin-top: 14px; }
.btnrow > * { flex: 1; }

/* Badges */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.offen { background: #fef3c7; color: var(--amber); }
.badge.bezahlt { background: #dcfce7; color: var(--green); }
.badge.storniert { background: #fee2e2; color: var(--red); }

/* Bottom nav */
.tabbar {
  position: sticky; bottom: 0; display: flex; background: #fff;
  border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom);
}
.tabbar button {
  flex: 1; background: none; border: none; padding: 10px 4px; font-size: 11px;
  color: var(--muted); cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.tabbar button.active { color: var(--accent); }
.tabbar .ico { display: flex; align-items: center; justify-content: center; height: 24px; }
.tabbar .ico svg { width: 23px; height: 23px; display: block; }

/* Item rows in invoice form */
.item { border: 1px dashed var(--line); border-radius: 10px; padding: 10px; margin-bottom: 10px; }
.item .top { display: flex; justify-content: space-between; align-items: center; }
.item .del { background: none; border: none; color: var(--red); font-size: 14px; cursor: pointer; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.login-card { width: 100%; max-width: 360px; }

.amount { font-variant-numeric: tabular-nums; font-weight: 600; }
.empty { text-align: center; color: var(--muted); padding: 40px 20px; }
.toast {
  position: fixed; left: 50%; bottom: 80px; transform: translateX(-50%);
  background: #111827; color: #fff; padding: 10px 16px; border-radius: 10px;
  font-size: 14px; z-index: 100; opacity: 0; transition: opacity .2s; pointer-events: none;
}
.toast.show { opacity: 1; }
.fab {
  position: fixed; right: 18px; bottom: 78px; width: 56px; height: 56px; border-radius: 50%;
  background: var(--accent); color: #fff; border: none; font-size: 28px; cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,.2); z-index: 20;
}

/* Checkbox-Zeile */
.check { display: flex; align-items: center; gap: 10px; margin-top: 14px; font-size: 15px; color: var(--ink); cursor: pointer; }
.check input { width: auto; margin: 0; transform: scale(1.2); }

/* Bezahlt-Hinweis */
.paidnote {
  margin-top: 10px; background: #f0fdf4; border: 1px solid #bbf7d0; color: #166534;
  padding: 9px 12px; border-radius: 10px; font-size: 14px; font-weight: 600;
}

/* Menü (Verwaltung) */
.menu { display: flex; flex-direction: column; gap: 8px; }
.menurow {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px; cursor: pointer; text-align: left; font: inherit; color: var(--ink); width: 100%;
}
.menurow:active { background: #fafafa; }
.menurow .chev { color: var(--muted); font-size: 22px; }

/* Filter-/Buchstaben-Leiste */
.azbar { display: flex; gap: 6px; overflow-x: auto; padding: 4px 0 12px; -webkit-overflow-scrolling: touch; }
.azbar::-webkit-scrollbar { display: none; }
.chip {
  flex: 0 0 auto; border: 1px solid var(--line); background: #fff; color: var(--soft, #555);
  border-radius: 999px; padding: 6px 12px; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.chip.on { background: var(--primary); color: #fff; border-color: var(--primary); }
.azhead {
  font-size: 12px; font-weight: 700; color: var(--muted); letter-spacing: 1px;
  padding: 12px 4px 4px;
}

/* PDF-Overlay mit Schließen-Button */
.pdfov { position: fixed; inset: 0; background: #fff; z-index: 300; display: flex; flex-direction: column; }
.pdfbar {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--primary); color: #fff; padding: calc(12px + env(safe-area-inset-top)) 16px 12px;
}
.pdfbar button, .pdfbar a { background: none; border: none; color: #fff; font-size: 15px; text-decoration: none; cursor: pointer; padding: 4px; }
.pdfbar .pdftitle { font-weight: 600; }
.pdfframe { flex: 1; width: 100%; border: 0; background: #525659; }