:root {
  --mango: #ff9e1a;
  --mango-dark: #e8890b;
  --mango-soft: #fff4e3;
  --ink: #1d2229;
  --ink-2: #4a525c;
  --grey: #737b85;
  --line: #e7e9ec;
  --bg: #f6f7f9;
  --card: #ffffff;
  --green: #1f9d55;
  --green-soft: #e6f6ec;
  --red: #d64545;
  --red-soft: #fdeaea;
  --blue: #2b6cb0;
  --blue-soft: #e8f0fa;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(20, 24, 30, .06), 0 4px 16px rgba(20, 24, 30, .05);
  font-size: 15px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: var(--ink); }
a { color: var(--mango-dark); text-decoration: none; }

/* ---------- Layout ---------- */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: 232px; flex-shrink: 0;
  background: var(--card);
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  padding: 20px 12px;
  position: sticky; top: 0; height: 100vh;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 10px 22px; }
.brand-logo {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--mango), var(--mango-dark));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 17px;
}
.brand-name { font-weight: 700; font-size: 15px; letter-spacing: -.01em; }
.brand-name small { display: block; font-weight: 500; color: var(--grey); font-size: 11px; }

.nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 8px;
  color: var(--ink-2); border: none; background: none; text-align: left;
  font-weight: 500; font-size: 14px; width: 100%;
}
.nav-item:hover { background: var(--bg); color: var(--ink); }
.nav-item.active { background: var(--mango-soft); color: var(--mango-dark); font-weight: 600; }
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-sep { margin: 12px 12px 6px; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--grey); }

.userbox { border-top: 1px solid var(--line); padding: 12px 10px 0; font-size: 13px; }
.userbox .u-name { font-weight: 600; }
.userbox .u-mail { color: var(--grey); font-size: 12px; word-break: break-all; }
.userbox button { margin-top: 8px; }

.main { flex: 1; padding: 28px 36px; max-width: 1240px; }
.page-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; gap: 16px; flex-wrap: wrap; }
.page-head h1 { font-size: 22px; letter-spacing: -.02em; }
.page-head .sub { color: var(--grey); font-size: 13px; margin-top: 3px; }
.head-actions { display: flex; gap: 8px; align-items: center; }

/* ---------- Karten & KPI ---------- */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-pad { padding: 20px; }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 14px; margin-bottom: 22px; }
.kpi { padding: 18px 20px; }
.kpi .k-label { font-size: 12px; color: var(--grey); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.kpi .k-value { font-size: 24px; font-weight: 700; margin-top: 6px; letter-spacing: -.02em; }
.kpi .k-hint { font-size: 12px; color: var(--grey); margin-top: 4px; }
.kpi.accent { border-top: 3px solid var(--mango); }
.kpi.good .k-value { color: var(--green); }
.kpi.bad .k-value { color: var(--red); }

/* ---------- Tabellen ---------- */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--grey); padding: 10px 14px; border-bottom: 1px solid var(--line); font-weight: 600; }
td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfc; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
.empty { padding: 40px; text-align: center; color: var(--grey); }

/* ---------- Badges ---------- */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.draft { background: var(--line); color: var(--ink-2); }
.badge.sent { background: var(--blue-soft); color: var(--blue); }
.badge.paid { background: var(--green-soft); color: var(--green); }
.badge.overdue { background: var(--red-soft); color: var(--red); }
.badge.cancelled { background: #f3f4f6; color: var(--grey); text-decoration: line-through; }
.badge.due { background: var(--mango-soft); color: var(--mango-dark); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--ink); font-weight: 600; font-size: 13.5px;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--bg); }
.btn.primary { background: var(--mango); border-color: var(--mango); color: #fff; }
.btn.primary:hover { background: var(--mango-dark); border-color: var(--mango-dark); }
.btn.danger { color: var(--red); }
.btn.danger:hover { background: var(--red-soft); border-color: var(--red-soft); }
.btn.sm { padding: 5px 10px; font-size: 12.5px; }
.btn.ghost { border-color: transparent; background: transparent; color: var(--ink-2); }
.btn.ghost:hover { background: var(--bg); }
.btn:disabled { opacity: .5; cursor: default; }

/* ---------- Formulare ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid .full { grid-column: 1 / -1; }
.field label { display: block; font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin-bottom: 5px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line); border-radius: 8px; background: #fff;
  outline: none; transition: border-color .12s, box-shadow .12s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--mango); box-shadow: 0 0 0 3px rgba(255, 158, 26, .15);
}
.field textarea { resize: vertical; min-height: 70px; }
.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: auto; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(15, 18, 22, .45);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 5vh 16px; z-index: 50; overflow-y: auto;
}
.modal {
  background: var(--card); border-radius: 14px; width: 100%; max-width: 680px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25); animation: pop .15s ease-out;
}
.modal.wide { max-width: 900px; }
@keyframes pop { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }
.modal-head { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.modal-head h2 { font-size: 17px; }
.modal-body { padding: 22px; }
.modal-foot { padding: 16px 22px; border-top: 1px solid var(--line); display: flex; justify-content: flex-end; gap: 8px; }
.x-btn { border: none; background: none; font-size: 22px; color: var(--grey); line-height: 1; }

/* ---------- Rechnungseditor Positionen ---------- */
.items-table input { padding: 7px 9px; border: 1px solid var(--line); border-radius: 6px; width: 100%; }
.items-table td { padding: 6px 6px; }
.items-table th { padding: 6px 6px; }

/* ---------- Login ---------- */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; background: linear-gradient(160deg, var(--mango-soft), var(--bg) 55%); }
.auth-card { width: 100%; max-width: 400px; padding: 34px; }
.auth-card .brand { justify-content: center; padding-bottom: 10px; }
.auth-card h1 { font-size: 20px; text-align: center; margin-bottom: 4px; }
.auth-card .sub { text-align: center; color: var(--grey); font-size: 13px; margin-bottom: 22px; }
.auth-card .field { margin-bottom: 14px; }
.auth-card .btn { width: 100%; justify-content: center; padding: 11px; }
.sso-row { display: flex; flex-direction: column; gap: 8px; margin-top: 14px; }
.divider { display: flex; align-items: center; gap: 12px; color: var(--grey); font-size: 12px; margin: 18px 0 4px; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.auth-switch { text-align: center; font-size: 13px; color: var(--grey); margin-top: 18px; }
.form-error { background: var(--red-soft); color: var(--red); border-radius: 8px; padding: 10px 12px; font-size: 13px; margin-bottom: 14px; }

/* ---------- Toast ---------- */
#toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 10px;
  font-size: 14px; font-weight: 500; box-shadow: var(--shadow); z-index: 100;
  opacity: 0; pointer-events: none; transition: opacity .2s;
}
#toast.show { opacity: 1; }

/* ---------- Report ---------- */
.report-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.bar-row { display: grid; grid-template-columns: 44px 1fr 90px; gap: 10px; align-items: center; font-size: 12.5px; padding: 4px 0; }
.bar-track { background: var(--bg); border-radius: 6px; height: 18px; overflow: hidden; display: flex; }
.bar-inc { background: var(--green); height: 100%; }
.bar-exp { background: var(--red); height: 100%; opacity: .75; }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- Kalender ---------- */
.cal-head { display: grid; grid-template-columns: repeat(7, 1fr); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--grey); border-bottom: 1px solid var(--line); }
.cal-head div { padding: 10px 8px; }
.cal-body { display: grid; grid-template-columns: repeat(7, 1fr); }
.cal-cell { min-height: 92px; border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); padding: 6px; position: relative; }
.cal-cell:nth-child(7n) { border-right: none; }
.cal-cell.today { background: var(--mango-soft); }
.cal-cell.empty-cell { background: #fafbfc; }
.cal-day { font-size: 12px; font-weight: 600; color: var(--grey); display: block; margin-bottom: 4px; }
.cal-cell.today .cal-day { color: var(--mango-dark); }
.cal-appt { display: block; width: 100%; text-align: left; border: none; border-radius: 6px; padding: 3px 6px; margin-bottom: 3px; font-size: 11px; font-weight: 500; cursor: pointer; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cal-appt.s-planned { background: var(--blue-soft); color: var(--blue); }
.cal-appt.s-done { background: var(--green-soft); color: var(--green); }
.cal-appt.s-billed { background: var(--line); color: var(--ink-2); }
.cal-appt.s-cancelled { background: #f3f4f6; color: var(--grey); text-decoration: line-through; }
.toolbar select, .toolbar input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; }

@media (max-width: 900px) {
  .layout { flex-direction: column; }
  .sidebar { width: 100%; height: auto; position: static; flex-direction: row; align-items: center; overflow-x: auto; }
  .nav { flex-direction: row; }
  .userbox { border: none; padding: 0; }
  .main { padding: 18px; }
  .form-grid, .report-grid { grid-template-columns: 1fr; }
}