/* ── DESIGN TOKENS ────────────────────────────────────────── */
:root {
  --bg: #0d1117;
  --bg2: #161b22;
  --bg3: #1e2430;
  --border: #2a3145;
  --accent: #1a5eff;
  --accent2: #6c63ff;
  --green: #2dba6b;
  --red: #e74c3c;
  --yellow: #f0a500;
  --text: #e6edf3;
  --text2: #8892b0;
  --sidebar-bg: #161b22;
  --sidebar-text: #8892b0;
  --sidebar-active-text: #1a5eff;
  --sidebar-active-bg: rgba(26,94,255,.1);
  --sidebar-border: #2a3145;
  --shadow: 0 2px 8px rgba(0,0,0,.4);
  --sidebar-w: 230px;
}

[data-theme="light"] {
  --bg: #f0f4fc;
  --bg2: #ffffff;
  --bg3: #eef2fb;
  --border: #dde4f0;
  --accent: #1a44c5;
  --accent2: #5a52d5;
  --green: #059669;
  --red: #dc2626;
  --yellow: #d97706;
  --text: #111827;
  --text2: #6b7280;
  --sidebar-bg: #1a44c5;
  --sidebar-text: rgba(255,255,255,.75);
  --sidebar-active-text: #ffffff;
  --sidebar-active-bg: rgba(255,255,255,.15);
  --sidebar-border: rgba(255,255,255,.12);
  --shadow: 0 2px 8px rgba(26,68,197,.12);
}

/* ── RESET ──────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
  background: var(--bg); color: var(--text);
  display: flex; min-height: 100vh; font-size: 14px;
  transition: background .2s, color .2s;
}

/* ── SIDEBAR ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  display: flex; flex-direction: column;
  position: fixed; height: 100vh; z-index: 10;
  transition: background .2s;
}
.logo {
  padding: 18px 16px 16px;
  font-size: 20px; font-weight: 800; letter-spacing: -.5px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex; align-items: center; gap: 6px;
}
.logo-d { color: #fff; }
.logo-eenge { color: rgba(255,255,255,.8); }
.logo-ai {
  color: #fff; font-size: 10px; font-weight: 700;
  background: rgba(255,255,255,.2); padding: 2px 6px;
  border-radius: 4px; letter-spacing: .5px;
}
[data-theme="light"] .logo-d { color: #fff; }
[data-theme="light"] .logo-eenge { color: rgba(255,255,255,.85); }

.nav-links { list-style: none; padding: 8px 0; flex: 1; overflow-y: auto; }
.nav-links li a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 16px; color: var(--sidebar-text);
  text-decoration: none; transition: all .15s;
  border-left: 3px solid transparent; font-size: 13.5px;
}
.nav-links li a:hover { color: var(--sidebar-active-text); background: var(--sidebar-active-bg); }
.nav-links li a.active {
  color: var(--sidebar-active-text); background: var(--sidebar-active-bg);
  border-left-color: var(--sidebar-active-text); font-weight: 600;
}
.nav-section { padding: 16px 16px 4px; font-size: 10px; font-weight: 700;
  color: var(--sidebar-text); text-transform: uppercase; letter-spacing: 1px; opacity: .6; }
.icon { font-size: 15px; width: 20px; text-align: center; }
.sidebar-footer {
  padding: 12px 16px; font-size: 11px; color: var(--sidebar-text);
  border-top: 1px solid var(--sidebar-border);
  display: flex; align-items: center; justify-content: space-between;
}
.theme-toggle {
  background: var(--sidebar-active-bg); border: 1px solid var(--sidebar-border);
  color: var(--sidebar-active-text); padding: 4px 10px; border-radius: 20px;
  cursor: pointer; font-size: 12px; transition: all .15s;
}
.theme-toggle:hover { background: rgba(255,255,255,.2); }

/* ── CONTENT ────────────────────────────────────────────── */
.content { margin-left: var(--sidebar-w); flex: 1; padding: 24px; min-height: 100vh; }
.page { display: none; }
.page.active { display: block; }

/* ── PAGE HEADER ────────────────────────────────────────── */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.page-header h1 { font-size: 22px; font-weight: 700; }
.page-header .actions { display: flex; gap: 8px; align-items: center; }

/* ── KPI CARDS ──────────────────────────────────────────── */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 24px; }
.kpi-card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 10px; padding: 16px;
  box-shadow: var(--shadow); transition: transform .15s;
}
.kpi-card:hover { transform: translateY(-1px); }
.kpi-card .kpi-label { color: var(--text2); font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.kpi-card .kpi-value { font-size: 28px; font-weight: 800; color: var(--text); line-height: 1; }
.kpi-card .kpi-sub { color: var(--text2); font-size: 11px; margin-top: 6px; }
.kpi-card.accent { border-color: var(--accent); border-top: 3px solid var(--accent); }
.kpi-card.green { border-color: var(--green); border-top: 3px solid var(--green); }
.kpi-card.red { border-color: var(--red); border-top: 3px solid var(--red); }
.kpi-card.yellow { border-color: var(--yellow); border-top: 3px solid var(--yellow); }

/* ── GRID ───────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; }

/* ── CARDS ──────────────────────────────────────────────── */
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px; margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.card-title {
  font-size: 12px; font-weight: 700; color: var(--text2);
  margin-bottom: 16px; text-transform: uppercase; letter-spacing: .6px;
}

/* ── PANEL GRID (like d-connect 4-column) ───────────────── */
.panel-grid { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.panel-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; margin-bottom: 16px; }
@media (max-width: 1400px) { .panel-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 900px)  { .panel-grid { grid-template-columns: 1fr; } }

/* ── TABLE ──────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left; padding: 9px 12px;
  font-size: 11px; color: var(--text2); font-weight: 700;
  text-transform: uppercase; letter-spacing: .5px;
  border-bottom: 2px solid var(--border); white-space: nowrap;
  background: var(--bg3);
}
td { padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:hover td { background: rgba(26,94,255,.04); }
tr:last-child td { border-bottom: none; }
.table-empty { text-align: center; color: var(--text2); padding: 28px; }

/* ── BADGES ─────────────────────────────────────────────── */
.badge { display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 11px; font-weight: 600; }
.badge-green { background: rgba(45,186,107,.12); color: var(--green); }
.badge-red { background: rgba(231,76,60,.12); color: var(--red); }
.badge-yellow { background: rgba(240,165,0,.12); color: var(--yellow); }
.badge-blue { background: rgba(26,94,255,.12); color: var(--accent); }
.badge-gray { background: rgba(136,146,176,.12); color: var(--text2); }
.badge-purple { background: rgba(108,99,255,.12); color: var(--accent2); }

/* ── BUTTONS ────────────────────────────────────────────── */
.btn { padding: 8px 16px; border-radius: 7px; border: none; cursor: pointer; font-size: 13px; font-weight: 600; transition: all .15s; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--bg3); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger { background: rgba(231,76,60,.1); color: var(--red); border: 1px solid rgba(231,76,60,.25); }
.btn-danger:hover { background: var(--red); color: #fff; }
.btn-success { background: var(--green); color: #fff; }
.btn-success:hover { filter: brightness(1.1); }
.btn-icon { background: none; border: none; cursor: pointer; color: var(--text2); font-size: 15px; padding: 4px 8px; border-radius: 5px; }
.btn-icon:hover { color: var(--text); background: var(--bg3); }
.btn-sm { padding: 4px 10px; font-size: 12px; }

/* ── SEARCH & FILTER ────────────────────────────────────── */
.search-bar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.search-bar input, .search-bar select {
  background: var(--bg2); border: 1px solid var(--border);
  color: var(--text); padding: 8px 12px; border-radius: 7px; font-size: 13px;
}
.search-bar input { flex: 1; min-width: 180px; }
.search-bar input:focus, .search-bar select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(26,94,255,.1); }

/* ── DURCHSUCHBARES SELECT ──────────────────────────────── */
.ss-wrap { position: relative; }
.search-bar .ss-wrap { flex: 1; min-width: 180px; }
.ss-input {
  width: 100%; background: var(--bg2); border: 1px solid var(--border);
  color: var(--text); padding: 8px 12px; border-radius: 7px; font-size: 13px;
}
.form-group .ss-input {
  background: var(--bg3); padding: 9px 12px;
}
.ss-input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(26,94,255,.1); }
.ss-list {
  position: absolute; top: calc(100% + 2px); left: 0; right: 0;
  background: var(--card, var(--bg2)); border: 1px solid var(--border);
  border-radius: 7px; max-height: 220px; overflow-y: auto;
  z-index: 2000; box-shadow: 0 6px 20px rgba(0,0,0,.35);
}
.ss-item {
  padding: 8px 12px; cursor: pointer; font-size: 13px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.ss-item:hover, .ss-item.active { background: var(--accent); color: #fff; }

/* ── FORMS ──────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; font-weight: 600; color: var(--text2); margin-bottom: 5px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  color: var(--text); padding: 9px 12px; border-radius: 7px;
  font-size: 13px; font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(26,94,255,.1);
}
.form-group textarea { min-height: 80px; resize: vertical; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border); }

/* ── MODAL ──────────────────────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); z-index: 100; display: flex; align-items: center; justify-content: center; backdrop-filter: blur(2px); }
.modal-overlay.hidden { display: none; }
.modal { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px; width: 640px; max-width: 95vw; max-height: 90vh; overflow-y: auto; box-shadow: 0 20px 60px rgba(0,0,0,.4); }
.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); }
.modal-header h3 { font-size: 16px; font-weight: 700; }
#modal-body { padding: 20px; }

/* ── TOAST ──────────────────────────────────────────────── */
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--bg2); border: 1px solid var(--border); padding: 12px 20px; border-radius: 8px; z-index: 200; font-size: 13px; transition: opacity .3s; box-shadow: var(--shadow); }
.toast.hidden { display: none; }
.toast.success { border-color: var(--green); color: var(--green); }
.toast.error { border-color: var(--red); color: var(--red); }

/* ── KANBAN ─────────────────────────────────────────────── */
.kanban { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kanban-col { background: var(--bg3); border-radius: 8px; padding: 12px; min-height: 300px; }
.kanban-col-header { font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 12px; display: flex; justify-content: space-between; }
.kanban-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 7px; padding: 10px; margin-bottom: 8px; cursor: pointer; }
.kanban-card:hover { border-color: var(--accent); }
.kanban-card .card-title { font-size: 13px; color: var(--text); margin-bottom: 4px; }
.kanban-card .card-meta { font-size: 11px; color: var(--text2); }

/* ── TABS ───────────────────────────────────────────────── */
.tab-bar { display: flex; gap: 0; border-bottom: 2px solid var(--border); margin-bottom: 20px; }
.tab-btn { padding: 9px 16px; background: none; border: none; cursor: pointer; color: var(--text2); font-size: 13px; font-weight: 600; border-bottom: 2px solid transparent; margin-bottom: -2px; transition: all .15s; }
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── PROVISION CALC ─────────────────────────────────────── */
.provision-result { background: var(--bg3); border: 1px solid var(--border); border-radius: 8px; padding: 16px; margin-top: 16px; }
.provision-result .prov-row { display: flex; justify-content: space-between; padding: 4px 0; font-size: 13px; }
.provision-result .prov-row.total { border-top: 1px solid var(--border); margin-top: 8px; padding-top: 8px; font-weight: 800; font-size: 15px; color: var(--green); }
.provision-result .prov-row.deduct { color: var(--red); }
.provision-result .prov-row.db { color: var(--accent); }

/* ── SPARTE ICONS ───────────────────────────────────────── */
.sparte-strom { color: var(--yellow); }
.sparte-gas   { color: #64dfdf; }
.sparte-wasser{ color: var(--accent); }

/* ── STATUS DOT ─────────────────────────────────────────── */
.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 5px; }
.dot-green  { background: var(--green); }
.dot-red    { background: var(--red); }
.dot-yellow { background: var(--yellow); }
.dot-gray   { background: var(--text2); }

/* ── CLICKABLE ROW ──────────────────────────────────────── */
.clickable { cursor: pointer; }
.clickable:hover td { background: rgba(26,94,255,.04); }

/* ── DETAIL VIEW ────────────────────────────────────────── */
.detail-back { display: flex; align-items: center; gap: 8px; cursor: pointer; color: var(--text2); font-size: 13px; margin-bottom: 16px; width: fit-content; }
.detail-back:hover { color: var(--accent); }
.detail-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 20px; }
.info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.info-item .info-label { font-size: 11px; color: var(--text2); font-weight: 600; text-transform: uppercase; letter-spacing: .3px; margin-bottom: 3px; }
.info-item .info-value { font-size: 13px; color: var(--text); }
.info-item .info-value.mono { font-family: monospace; font-size: 12px; }

/* ── COST TABLE (Netzbetreiber / Umlagen) ───────────────── */
.cost-table { width: 100%; }
.cost-table tr td:first-child { color: var(--text2); font-size: 12px; font-weight: 500; padding: 5px 0; }
.cost-table tr td:last-child { text-align: right; font-weight: 600; font-size: 13px; padding: 5px 0; }
.cost-table tr { border-bottom: 1px solid var(--border); }
.cost-table tr:last-child { border-bottom: none; }

/* ── EMPTY STATE ────────────────────────────────────────── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text2); }
.empty-state .empty-icon { font-size: 48px; margin-bottom: 16px; }
.empty-state p { margin-bottom: 16px; }

/* ── SETTINGS ───────────────────────────────────────────── */
.settings-section { margin-bottom: 32px; }
.settings-section h2 { font-size: 16px; font-weight: 700; margin-bottom: 16px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.setting-row { display: flex; align-items: center; justify-content: space-between; padding: 12px 0; border-bottom: 1px solid var(--border); }
.setting-row:last-child { border-bottom: none; }
.setting-label { font-size: 14px; font-weight: 500; }
.setting-desc { font-size: 12px; color: var(--text2); margin-top: 2px; }
.toggle-switch { position: relative; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; cursor: pointer; inset: 0; background: var(--border); border-radius: 24px; transition: .2s; }
.toggle-slider:before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; bottom: 3px; background: #fff; border-radius: 50%; transition: .2s; }
.toggle-switch input:checked + .toggle-slider { background: var(--accent); }
.toggle-switch input:checked + .toggle-slider:before { transform: translateX(20px); }

/* ── IMPORT/EXPORT ──────────────────────────────────────── */
.import-result { background: var(--bg3); border-radius: 8px; padding: 14px; margin-top: 12px; }
.export-btn-row { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }

/* ── DOKUMENTENABLAGE ───────────────────────────────────── */
.dok-drop {
  border: 2px dashed var(--border);
  border-radius: 8px;
  padding: 20px 16px;
  text-align: center;
  cursor: default;
  transition: border-color .2s, background .2s;
  color: var(--text2);
  font-size: 13px;
}
.dok-drop:hover, .dok-drop.dragover {
  border-color: var(--accent);
  background: rgba(26, 94, 255, 0.05);
}
.dok-label {
  color: var(--accent);
  cursor: pointer;
  text-decoration: underline;
}
.dok-controls {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 10px;
}
.dok-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 4px;
  border-bottom: 1px solid var(--border);
}
.dok-item:last-child { border-bottom: none; }
.dok-icon { font-size: 22px; flex-shrink: 0; }
.dok-meta { flex: 1; min-width: 0; }
.dok-name { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.dok-info { font-size: 11px; color: var(--text2); margin-top: 2px; }

/* ── DOKUMENT-VORSCHAU OVERLAY ──────────────────────────── */
#dok-preview-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.dok-preview-panel {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 1100px;
  height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.6);
}
.dok-preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  gap: 12px;
}
.dok-preview-title {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.dok-preview-body {
  flex: 1;
  overflow: hidden;
  background: #fff;
}
.dok-preview-body iframe {
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}
.dok-preview-image {
  background: #1a1a1a;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
}
.dok-preview-image img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}

/* ── SCROLLBAR ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text2); }