:root {
  --primary: #00B4C5;
  --primary-dark: #008a98;
  --primary-light: #4dd0df;
  --accent: #ff6b6b;
  --dark: #1a2332;
  --gray: #667085;
  --light: #f5f9fb;
  --border: #e4ecf1;
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow-sm: 0 1px 3px rgba(26,35,50,0.06);
  --shadow-md: 0 4px 16px rgba(0,180,197,0.08);
  --shadow-lg: 0 12px 40px rgba(0,180,197,0.18);
  --gradient-primary: linear-gradient(135deg, #00B4C5 0%, #0090a8 100%);
  --gradient-hero: linear-gradient(135deg, #00B4C5 0%, #0090a8 50%, #007585 100%);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Calibri', 'Carlito', 'Segoe UI', sans-serif;
  color: var(--dark);
  background: var(--light);
  background-image:
    radial-gradient(circle at 10% 0%, rgba(0,180,197,0.06) 0%, transparent 35%),
    radial-gradient(circle at 90% 10%, rgba(0,180,197,0.04) 0%, transparent 30%);
  min-height: 100vh;
}

/* ================= FANCY HEADER ================= */
header {
  background: #fff;
  border-bottom: none;
  padding: 20px 40px;
  display: flex;
  align-items: center;
  gap: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 10;
}
header::before {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 4px;
  background: var(--gradient-hero);
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand-logo {
  width: 48px; height: 48px;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
  image-rendering: -webkit-optimize-contrast;
  filter: drop-shadow(0 6px 14px rgba(0,180,197,0.32));
  transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
}
.brand-logo:hover { transform: scale(1.05) rotate(-2deg); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-title { font-size: 20px; font-weight: 700; color: var(--dark); letter-spacing: -0.3px; }
.brand-title span { color: var(--primary); }
.brand-subtitle { font-size: 12px; color: var(--gray); font-weight: 500; margin-top: 2px; }
nav { display: flex; gap: 10px; margin-left: auto; align-items: center; }
nav button {
  padding: 10px 18px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  color: var(--dark);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  position: relative;
}
nav button .btn-icon { font-size: 16px; line-height: 1; }
nav button:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0,180,197,0.28);
}
nav button.active {
  background: var(--gradient-primary);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(0,180,197,0.32);
}
#nav-logout { border-color: #fecaca; color: #ef4444; }
#nav-logout:hover { background: #ef4444; color: #fff; border-color: #ef4444; box-shadow: 0 8px 20px rgba(239,68,68,0.28); }

/* ================= TOOLTIP-INFOBOX ================= */
.nav-item { position: relative; display: inline-flex; }
.nav-tip {
  position: absolute;
  top: calc(100% + 14px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  min-width: 300px;
  max-width: 360px;
  background: #fff;
  color: var(--dark);
  padding: 16px 18px;
  border-radius: 14px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0,180,197,0.08);
  font-size: 13px;
  line-height: 1.55;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 50;
  text-align: left;
  font-weight: 400;
  white-space: normal;
}
.nav-tip::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 14px; height: 14px;
  background: #fff;
  border-top: 1px solid rgba(0,180,197,0.1);
  border-left: 1px solid rgba(0,180,197,0.1);
}
.nav-tip-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
  letter-spacing: -0.2px;
}
.nav-tip-body { color: var(--gray); font-size: 12.5px; line-height: 1.6; }
.nav-tip-body strong { color: var(--dark); }
.nav-item:hover .nav-tip,
.nav-item:focus-within .nav-tip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}
/* Logout-Tooltip nach links verschieben (am Rand) */
.nav-item.nav-item-right .nav-tip { left: auto; right: 0; transform: translateX(0) translateY(-6px); }
.nav-item.nav-item-right .nav-tip::before { left: auto; right: 22px; transform: rotate(45deg); }
.nav-item.nav-item-right:hover .nav-tip { transform: translateX(0) translateY(0); }
main { max-width: 1200px; margin: 28px auto; padding: 0 24px; }
.card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 28px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}
.card:hover { box-shadow: var(--shadow-md); }
.card h2 { font-size: 19px; margin-bottom: 18px; color: var(--dark); font-weight: 700; letter-spacing: -0.2px; display: flex; align-items: center; gap: 10px; }
.card h2::before { content: ""; width: 4px; height: 20px; background: var(--gradient-primary); border-radius: 2px; }
.card h3 { font-size: 15px; margin-bottom: 12px; color: var(--gray); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 12px; background: var(--light); border-bottom: 2px solid var(--border); color: var(--gray); font-weight: 600; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: #f0f9fa; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 12px; font-weight: 600; }
.badge-gray { background: #e5e7eb; color: #374151; }
.badge-blue { background: #dbeafe; color: #1d4ed8; }
.badge-yellow { background: #fef3c7; color: #92400e; }
.badge-green { background: #d1fae5; color: #065f46; }
.badge-purple { background: #ede9fe; color: #5b21b6; }
.badge-red { background: #fee2e2; color: #991b1b; }
input, select, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 16px; font-family: inherit; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(0,180,197,0.1); }
label { display: block; font-size: 13px; font-weight: 600; color: var(--gray); margin-bottom: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.btn { padding: 11px 22px; border: none; border-radius: 10px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all 0.2s cubic-bezier(0.4,0,0.2,1); letter-spacing: -0.1px; }
.btn-primary { background: var(--gradient-primary); color: #fff; box-shadow: 0 4px 12px rgba(0,180,197,0.25); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(0,180,197,0.35); }
.btn-secondary { background: #fff; color: var(--dark); border: 1.5px solid var(--border); }
.btn-secondary:hover { background: var(--light); border-color: var(--primary); color: var(--primary); }
.btn-success { background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%); color: #fff; box-shadow: 0 4px 12px rgba(34,197,94,0.25); }
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(34,197,94,0.35); }
.btn-warning { background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%); color: #fff; box-shadow: 0 4px 12px rgba(245,158,11,0.25); }
.btn-warning:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(245,158,11,0.35); }
.btn-sm { padding: 7px 14px; font-size: 13px; border-radius: 8px; }
.actions { display: flex; gap: 8px; }
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 100; align-items: center; justify-content: center; }
.modal-overlay.active { display: flex; }
.modal { background: #fff; border-radius: 12px; padding: 32px; max-width: 720px; width: 92%; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.modal h2 { margin-bottom: 16px; font-size: 20px; color: var(--dark); border-bottom: 2px solid var(--primary); padding-bottom: 12px; }
.modal h3 { font-size: 14px; font-weight: 700; color: var(--primary); margin: 16px 0 8px 0; text-transform: uppercase; letter-spacing: 0.5px; }
.modal table { margin-bottom: 12px; }
.modal table td { padding: 6px 10px; font-size: 13px; border-bottom: 1px solid #f0f0f0; }
.modal table td strong { color: var(--gray); font-weight: 600; }
.info-box { background: #f0f9fa; border-left: 4px solid var(--primary); padding: 12px 16px; margin-bottom: 16px; font-size: 13px; border-radius: 0 6px 6px 0; line-height: 1.5; }
.lohn-preview { background: var(--light); padding: 16px; border-radius: 8px; margin-top: 12px; }
.lohn-preview .big { font-size: 28px; font-weight: 700; color: var(--primary); }
.lohn-preview .detail { font-size: 13px; color: var(--gray); margin-top: 4px; }
.status-flow { display: flex; gap: 3px; align-items: center; margin-bottom: 20px; flex-wrap: wrap; padding: 12px 0; }
.status-step { padding: 5px 12px; border-radius: 14px; font-size: 11px; font-weight: 600; background: #e5e7eb; color: #6b7280; white-space: nowrap; }
.status-step.done { background: #d1fae5; color: #065f46; }
.status-step.current { background: var(--primary); color: #fff; box-shadow: 0 2px 8px rgba(0,180,197,0.3); }
.status-arrow { color: #d1d5db; font-size: 14px; }
.modal .actions { margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.modal .termin-row { display: inline-flex; align-items: center; gap: 8px; background: var(--light); padding: 6px 12px; border-radius: 8px; margin-right: 8px; }
.modal .termin-row input { width: 140px; padding: 6px 8px; font-size: 13px; }
.modal .termin-row span { font-size: 12px; color: var(--gray); white-space: nowrap; }
.empty-state { text-align: center; padding: 60px; color: var(--gray); }
.empty-state h3 { margin-bottom: 8px; }
.hidden { display: none; }

/* ================= KPI-Kacheln ================= */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.kpi-card {
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.kpi-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.kpi-label { font-size: 12px; color: var(--gray); font-weight: 600; text-transform: uppercase; letter-spacing: 0.4px; }
.kpi-value { font-size: 30px; font-weight: 800; color: var(--dark); margin-top: 4px; letter-spacing: -0.8px; }
.kpi-value .unit { font-size: 14px; color: var(--gray); font-weight: 500; margin-left: 4px; }
.kpi-card.highlight .kpi-value { color: var(--primary); }
.kpi-card.warn .kpi-value { color: var(--warning); }
.kpi-card.alert .kpi-value { color: var(--error); }

/* ================= Filter-Leiste ================= */
.filter-bar {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
  background: #fff;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.filter-bar input, .filter-bar select {
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 8px;
  border: 1.5px solid var(--border);
  background: var(--light);
}
.filter-bar input[type="search"] { flex: 1 1 240px; min-width: 180px; }
.filter-bar select { min-width: 140px; }
.filter-bar .filter-reset { background: transparent; border: 1.5px solid var(--border); border-radius: 8px; padding: 8px 12px; font-size: 13px; color: var(--gray); cursor: pointer; }
.filter-bar .filter-reset:hover { background: var(--light); color: var(--dark); }

/* ================= Warning Badge fuer rejected fields ================= */
.badge-warning-inline {
  display: inline-flex; align-items: center; gap: 4px;
  background: #fef3c7; color: #92400e;
  padding: 3px 8px; border-radius: 10px; font-size: 11px; font-weight: 600;
  margin-left: 6px;
}
.warning-box {
  background: #fffbeb; border-left: 4px solid var(--warning);
  padding: 12px 16px; margin: 12px 0; border-radius: 0 8px 8px 0; font-size: 13px;
}
.warning-box strong { color: #92400e; }
.warning-box ul { margin: 6px 0 0 18px; color: #78350f; }

/* ================= Dokumentenart-Kacheln ================= */
.doctype-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.doctype-tile {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.4,0,0.2,1);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.doctype-tile:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,180,197,0.18);
}
.doctype-tile:active { transform: translateY(-1px); }
.doctype-tile .tile-icon { font-size: 28px; line-height: 1; }
.doctype-tile .tile-name { font-size: 14px; font-weight: 700; color: var(--dark); line-height: 1.25; }
.doctype-tile .tile-desc { font-size: 11.5px; color: var(--gray); line-height: 1.4; }
.doctype-tile.tile-highlight {
  background: linear-gradient(135deg, #f0fafb 0%, #e6f5f7 100%);
  border-color: var(--primary);
}
.doctype-tile.tile-highlight .tile-name { color: var(--primary); }
@media (max-width: 640px) {
  .doctype-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .doctype-tile { padding: 12px; }
  .doctype-tile .tile-icon { font-size: 22px; }
  .doctype-tile .tile-name { font-size: 13px; }
  .doctype-tile .tile-desc { font-size: 10.5px; }
}

@media (max-width: 640px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .kpi-card { padding: 14px; }
  .kpi-value { font-size: 24px; }
  .filter-bar { padding: 10px; gap: 8px; }
  .filter-bar input[type="search"] { flex: 1 1 100%; }
}
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--dark); color: #fff; padding: 12px 20px; border-radius: 8px; font-size: 14px; z-index: 200; display: none; }
.toast.success { background: var(--success); }
.toast.error { background: var(--error); }

/* Scroll-Container für breite Tabellen */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ============================================================ */
/* RESPONSIVE: Tablet (<= 1024px) */
/* ============================================================ */
@media (max-width: 1024px) {
  main { padding: 0 16px; margin: 16px auto; }
  header { padding: 12px 16px; }
  .modal { max-width: 95%; padding: 24px; }
  .form-row-3 { grid-template-columns: 1fr 1fr; }
}

/* ============================================================ */
/* RESPONSIVE: Smartphone (<= 640px) */
/* ============================================================ */
@media (max-width: 640px) {
  header { padding: 12px 14px; flex-wrap: wrap; gap: 10px; }
  .brand-logo { width: 40px; height: 40px; }
  .brand-title { font-size: 16px; }
  .brand-subtitle { display: none; }
  nav { width: 100%; margin-left: 0; gap: 6px; flex-wrap: wrap; }
  nav button { flex: 1 1 auto; padding: 10px 12px; font-size: 13px; min-height: 44px; border-radius: 8px; }
  nav button .btn-icon { font-size: 15px; }
  /* Tooltips auf Mobile deaktivieren (Touch-Geraete) */
  .nav-tip { display: none !important; }
  #nav-user { display: none !important; }
  main { padding: 0 12px; margin: 12px auto; }
  .card { padding: 16px; border-radius: 6px; }
  .card h2 { font-size: 16px; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; gap: 12px; margin-bottom: 12px; }
  .btn { padding: 12px 18px; font-size: 15px; min-height: 44px; }
  .btn-sm { padding: 10px 14px; font-size: 13px; min-height: 40px; }
  .actions { flex-direction: column; align-items: stretch; }
  .actions .btn { width: 100%; }
  /* Modal = Fullscreen auf Handy */
  .modal-overlay { padding: 0; }
  .modal { width: 100%; height: 100vh; max-width: 100%; max-height: 100vh; border-radius: 0; padding: 16px; padding-bottom: 32px; }
  .modal h2 { font-size: 17px; padding-bottom: 10px; }
  .modal .actions { flex-direction: column; align-items: stretch; }
  .modal .actions .btn { width: 100%; }
  .modal .termin-row { display: flex; margin-right: 0; width: 100%; flex-wrap: wrap; }
  .modal .termin-row input { flex: 1; width: auto; }
  /* Dashboard-Tabelle */
  table { font-size: 13px; }
  th, td { padding: 8px 6px; }
  th:nth-child(5), td:nth-child(5) { display: none; } /* Datum auf Handy ausblenden */
  /* Status-Flow kompakter */
  .status-flow { gap: 2px; padding: 8px 0; }
  .status-step { padding: 4px 8px; font-size: 10px; }
  .status-arrow { display: none; }
  /* Toast volle Breite */
  .toast { left: 12px; right: 12px; bottom: 12px; text-align: center; }
  /* PDF-Preview iframes */
  #vertrag-pdf-frame { height: 70vh; }
  #k-modal-content iframe, #modal-content iframe { height: 70vh !important; }
  /* Lohn-Preview kompakter */
  .lohn-preview .big { font-size: 22px; }
}

/* Touch-optimierung generell */
@media (hover: none) and (pointer: coarse) {
  nav button:hover { background: #fff; color: var(--dark); border-color: var(--border); }
  nav button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
  tr:hover td { background: inherit; }
}