/* ── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --sidebar-w:   240px;
  --topbar-h:    60px;
  --sidebar-bg:  #1e293b;
  --sidebar-txt: #94a3b8;
  --sidebar-act: #ffffff;
  --accent:      #2563eb;
  --accent-soft: #eff6ff;
  --accent-mid:  #dbeafe;
  --accent-2:    #7c3aed;
  --bg:          #f1f5f9;
  --surface:     #ffffff;
  --border:      #e2e8f0;
  --border-2:    #cbd5e1;
  --text:        #0f172a;
  --text-m:      #475569;
  --text-d:      #94a3b8;
  --success:     #059669;
  --success-bg:  #d1fae5;
  --warning:     #d97706;
  --warning-bg:  #fef3c7;
  --danger:      #dc2626;
  --danger-bg:   #fee2e2;
  --purple:      #7c3aed;
  --purple-bg:   #f5f3ff;
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:   0 4px 16px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.05);
  --shadow-lg:   0 12px 40px rgba(0,0,0,.12);
}

html, body { height: 100%; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  font-size: 14px;
  line-height: 1.5;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── Sidebar ──────────────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 10;
}

.sidebar-logo {
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}

.logo-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -.02em;
  color: #fff;
}

.logo-text span {
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-txt);
  font-size: .87rem;
  font-weight: 500;
  transition: background .15s, color .15s;
}

.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }

.nav-item:hover { background: rgba(255,255,255,.06); color: #e2e8f0; }

.nav-item.active {
  background: rgba(37,99,235,.25);
  color: #fff;
}

.nav-item.active svg { color: #60a5fa; }

.sidebar-footer {
  padding: 14px 10px;
  border-top: 1px solid rgba(255,255,255,.06);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
}

.user-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  color: #fff;
  flex-shrink: 0;
}

.user-name  { font-size: .82rem; font-weight: 600; color: #e2e8f0; }
.user-role  { font-size: .72rem; color: var(--sidebar-txt); }

/* ── Main ─────────────────────────────────────────────────── */
#main {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Topbar ───────────────────────────────────────────────── */
#topbar {
  height: var(--topbar-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 5;
}

#page-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.search-wrap svg {
  position: absolute;
  left: 10px;
  width: 16px; height: 16px;
  color: var(--text-d);
  pointer-events: none;
}

#globalSearch {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 12px 7px 34px;
  font-size: .84rem;
  width: 220px;
  outline: none;
  color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}

#globalSearch:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.btn-icon {
  width: 34px; height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  transition: background .2s;
}

.btn-icon:hover { background: #1d4ed8; }
.btn-icon svg { width: 18px; height: 18px; }

/* ── Content ──────────────────────────────────────────────── */
#content { flex: 1; padding: 28px; }

/* ── Cards ────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-header h1 { font-size: 1.4rem; font-weight: 700; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text);
}

.card-body { padding: 20px; }

/* ── Stat Cards ───────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.stat-info { display: flex; flex-direction: column; gap: 4px; }
.stat-label { font-size: .78rem; font-weight: 600; color: var(--text-d); text-transform: uppercase; letter-spacing: .05em; }
.stat-value { font-size: 1.9rem; font-weight: 800; letter-spacing: -.03em; color: var(--text); line-height: 1; }
.stat-sub   { font-size: .78rem; color: var(--text-m); margin-top: 2px; }

.stat-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { width: 22px; height: 22px; }
.stat-icon.blue   { background: var(--accent-soft); color: var(--accent); }
.stat-icon.green  { background: var(--success-bg); color: var(--success); }
.stat-icon.amber  { background: var(--warning-bg); color: var(--warning); }
.stat-icon.purple { background: var(--purple-bg); color: var(--purple); }

/* ── Dash Grid ────────────────────────────────────────────── */
.dash-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ── Tables ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .855rem;
}

thead th {
  text-align: left;
  padding: 10px 16px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-d);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-m);
  vertical-align: middle;
}

tbody tr:last-child td { border-bottom: none; }

tbody tr { transition: background .12s; }
tbody tr:hover { background: #fafbfd; }

.td-primary { color: var(--text) !important; font-weight: 600; }

.td-link {
  color: var(--accent) !important;
  font-weight: 600;
  cursor: pointer;
}

.td-link:hover { text-decoration: underline; }

/* ── Badges / Status ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .03em;
  white-space: nowrap;
}

.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.badge-green  { background: var(--success-bg);  color: var(--success); }
.badge-blue   { background: var(--accent-soft); color: var(--accent); }
.badge-amber  { background: var(--warning-bg);  color: var(--warning); }
.badge-red    { background: var(--danger-bg);   color: var(--danger); }
.badge-purple { background: var(--purple-bg);   color: var(--purple); }
.badge-gray   { background: #f1f5f9; color: var(--text-d); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 600;
  border: none;
  transition: background .15s, transform .1s, box-shadow .15s;
  cursor: pointer;
}

.btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #1d4ed8; box-shadow: 0 4px 12px rgba(37,99,235,.3); }

.btn-secondary { background: var(--bg); color: var(--text-m); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--border-2); color: var(--text); background: #fff; }

.btn-danger { background: var(--danger-bg); color: var(--danger); }
.btn-danger:hover { background: #fca5a5; }

.btn-ghost { background: transparent; color: var(--text-m); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg); }

.btn-sm { padding: 5px 11px; font-size: .78rem; }

.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Toolbar / Filters ────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.toolbar-search {
  position: relative;
  flex: 1;
  max-width: 320px;
}

.toolbar-search svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 15px; height: 15px;
  color: var(--text-d);
  pointer-events: none;
}

.toolbar-search input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: .84rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.toolbar-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.toolbar select {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: .84rem;
  outline: none;
  color: var(--text);
  cursor: pointer;
}

/* ── Forms ────────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-full  { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 5px; }

.form-group label {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-m);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: .875rem;
  color: var(--text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ── Detail Layout ────────────────────────────────────────── */
.detail-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.detail-header-left { display: flex; align-items: flex-start; gap: 16px; }

.detail-avatar {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-soft), var(--purple-bg));
  border: 1px solid var(--accent-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--accent);
  flex-shrink: 0;
}

.detail-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 4px; }
.detail-sub   { font-size: .84rem; color: var(--text-m); display: flex; align-items: center; gap: 12px; }
.detail-sub .sep { color: var(--text-d); }

/* ── Tabs ─────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tab {
  padding: 10px 18px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-m);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  margin-bottom: -1px;
}

.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ── Info Grid ────────────────────────────────────────────── */
.info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.info-field {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.info-label { font-size: .72rem; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--text-d); margin-bottom: 3px; }
.info-value { font-size: .9rem; font-weight: 500; color: var(--text); }

/* ── Empty State ──────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-d);
}

.empty-state svg {
  width: 44px; height: 44px;
  margin: 0 auto 12px;
  display: block;
  opacity: .4;
}

.empty-state p { font-size: .9rem; color: var(--text-m); }

/* ── Modal ────────────────────────────────────────────────── */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.35);
  backdrop-filter: blur(3px);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn .15s ease;
}

#modal-overlay.hidden { display: none; }

#modal {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  animation: slideUp .2s ease;
}

@keyframes fadeIn  { from { opacity: 0 } to { opacity: 1 } }
@keyframes slideUp { from { transform: translateY(16px); opacity: 0 } to { transform: translateY(0); opacity: 1 } }

#modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--surface);
  z-index: 1;
}

#modal-title { font-size: 1rem; font-weight: 700; }

#modal-close {
  width: 30px; height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--bg);
  border-radius: var(--radius-sm);
  color: var(--text-m);
  transition: background .15s;
}

#modal-close:hover { background: var(--danger-bg); color: var(--danger); }
#modal-close svg { width: 16px; height: 16px; }

#modal-body { padding: 22px; }

/* ── Toast ────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 100;
}

.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--text);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: .84rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: slideUp .2s ease;
  min-width: 240px;
}

.toast svg { width: 16px; height: 16px; flex-shrink: 0; }
.toast.success { background: var(--success); }
.toast.error   { background: var(--danger); }
.toast.info    { background: var(--accent); }

/* ── Loading ──────────────────────────────────────────────── */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  color: var(--text-d);
  gap: 10px;
  font-size: .9rem;
}

/* ── Document item ────────────────────────────────────────── */
.doc-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.doc-item:last-child { border-bottom: none; }

.doc-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.doc-icon svg { width: 18px; height: 18px; }
.doc-icon.notiz     { background: #f0fdf4; color: var(--success); }
.doc-icon.angebot   { background: var(--accent-soft); color: var(--accent); }
.doc-icon.rechnung  { background: var(--warning-bg); color: var(--warning); }
.doc-icon.serviceschein { background: var(--purple-bg); color: var(--purple); }
.doc-icon.sonstig   { background: var(--bg); color: var(--text-d); }

.doc-content { flex: 1; min-width: 0; }
.doc-title   { font-weight: 600; font-size: .88rem; margin-bottom: 2px; }
.doc-meta    { font-size: .76rem; color: var(--text-d); }
.doc-text    { font-size: .84rem; color: var(--text-m); margin-top: 6px; white-space: pre-wrap; word-break: break-word; }

.doc-actions { display: flex; gap: 6px; flex-shrink: 0; }

/* ── Misc ─────────────────────────────────────────────────── */
.number-badge {
  display: inline-block;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
  font-size: .75rem;
  font-weight: 700;
  color: var(--text-m);
  font-family: 'SF Mono', monospace;
  letter-spacing: .02em;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .82rem;
  font-weight: 500;
  color: var(--text-m);
  margin-bottom: 16px;
  cursor: pointer;
  transition: color .15s;
}

.back-link:hover { color: var(--accent); }
.back-link svg   { width: 14px; height: 14px; }

.section-title {
  font-size: .82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-d);
  margin-bottom: 12px;
}