/* ================================================================
   FensterLex – glaserdiagramm.css
   Glaserdiagramm im FensterLex-Design
   Basiert auf glaser.css von Arne Glaus / ArGla Service
   Angepasst: Farben, Typografie, Header, Footer
   ================================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=DM+Mono:wght@300;400;500&family=Crimson+Pro:ital,wght@0,300;0,400;0,600;1,300;1,400&display=swap');

/* ── Design Tokens (FensterLex Palette) ── */
:root {
  --bg:       #0d0f11;
  --surface:  #141618;
  --surface2: #1a1d20;
  --border:   #2a2e33;
  --accent:   #c8963b;    /* Amber – FensterLex Gold */
  --accent2:  #e6b465;    /* Amber hell */
  --success:  #4fc98a;
  --warn:     #d97b4a;
  --danger:   #c25a5a;
  --text:     #e4e2dc;
  --text2:    #8a8880;
  --text3:    #5a5650;
  --mono:     'DM Mono', monospace;
  --sans:     'Crimson Pro', Georgia, serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }
::selection { background: rgba(200,150,59,0.25); color: var(--text); }

/* ── TOOLTIP ── */
.input-group label { display: block; margin-bottom: 5px; }
.tooltip {
  position: relative;
  display: inline-block;
  cursor: help;
  border-bottom: 1px dotted var(--accent);
}
.tooltip .tooltiptext {
  visibility: hidden;
  background: var(--surface);
  color: var(--accent2);
  text-align: center;
  border-radius: var(--radius, 4px);
  padding: 8px 10px;
  position: absolute;
  z-index: 10;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  opacity: 0;
  transition: opacity 0.2s;
  font-size: 0.82rem;
  font-weight: normal;
  line-height: 1.3;
  pointer-events: none;
  white-space: nowrap;
  border: 1px solid var(--border);
}
.tooltip:hover .tooltiptext,
.tooltip:focus .tooltiptext { visibility: visible; opacity: 1; }
.tooltip .tooltiptext::after {
  content: '';
  position: absolute;
  top: 100%; left: 50%;
  margin-left: -5px;
  border: 5px solid transparent;
  border-top-color: var(--border);
}

/* ================================================================
   HEADER
   ================================================================ */
header {
  background: rgba(13,15,17,0.96);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: 58px;
  position: sticky;
  top: 0;
  z-index: 100;
  overflow-x: auto;
  scrollbar-width: none;
}
header::-webkit-scrollbar { display: none; }

/* Logo */
.fl-logo {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-shrink: 0;
  margin-right: 0.25rem;
}
.fl-logo .logo-window {
  position: relative;
  display: inline-block;
  width: 16px; height: 20px;
  border: 2px solid var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
  margin-right: 7px;
  transform: skewX(-12deg);
}
.fl-logo .logo-window::before {
  content: '';
  position: absolute;
  top: 50%; left: 0; right: 0;
  height: 2px; background: var(--accent);
  transform: translateY(-50%);
}
.fl-logo .logo-window::after {
  content: '';
  position: absolute;
  left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--accent);
  transform: translateX(-50%);
}
.fl-logo em { font-style: italic; color: var(--accent2); }

/* Tag Badge */
header .tag {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  background: var(--accent);
  color: var(--bg);
  padding: 3px 9px;
  border-radius: 2px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

/* Header Titel */
header h1 {
  font-family: var(--mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  white-space: nowrap;
  flex-shrink: 0;
}

/* Tab-Navigation */
header nav {
  margin-left: auto;
  display: flex;
  gap: 0.2rem;
  align-items: center;
}
.tab-nav {
  background: none;
  border: 1px solid transparent;
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.tab-nav:hover { color: var(--text); background: var(--surface2); }
.tab-nav.active { color: var(--accent); border-color: var(--accent); background: rgba(200,150,59,0.08); }

.nav-divider { width: 1px; height: 18px; background: var(--border); margin: 0 0.2rem; }

/* Sidebar-Toggle (Hamburger) */
.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  min-width: 38px; width: 38px; height: 38px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text2);
  flex-shrink: 0;
  transition: all 0.15s;
  order: -1;
  touch-action: manipulation;
}
.sidebar-toggle:hover { color: var(--accent); border-color: var(--accent); }

/* Print-Ausrichtung */
.print-orient-toggle {
  display: flex; gap: 2px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
}
.po-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: 4px;
  color: var(--text3);
  cursor: pointer;
  padding: 4px 8px;
  display: flex; align-items: center;
  transition: all 0.15s;
}
.po-btn:hover { color: var(--text2); background: var(--surface); }
.po-btn.active { background: var(--accent); color: var(--bg); border-color: transparent; }

/* Aktions-Buttons */
.header-actions { display: flex; gap: 0.3rem; align-items: center; }
.print-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.05em;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex; align-items: center; gap: 5px;
  white-space: nowrap;
}
.print-btn:hover { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.print-btn svg { flex-shrink: 0; }
.action-export { border-color: rgba(79,201,138,0.4) !important; color: var(--success) !important; }
.action-export:hover { background: var(--success) !important; color: #000 !important; border-color: var(--success) !important; }
.action-import { border-color: rgba(200,150,59,0.4) !important; color: var(--accent) !important; }
.action-import:hover { background: var(--accent) !important; color: var(--bg) !important; }
.home-btn {
  display: flex; align-items: center; gap: 5px;
  padding: 5px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  text-transform: uppercase;
}
.home-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(200,150,59,0.06); }

/* ================================================================
   LAYOUT
   ================================================================ */
.app {
  display: grid;
  grid-template-columns: 320px 1fr;
  height: calc(100vh - 58px);
  overflow: hidden;
}

/* ================================================================
   SIDEBAR
   ================================================================ */
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.section {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.section-title {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  color: var(--text3);
  text-transform: uppercase;
  margin-bottom: 0.9rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.section-title::after {
  content: ''; flex: 1; height: 1px; background: var(--border);
}

/* Klima */
.climate-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.input-group { display: flex; flex-direction: column; gap: 3px; }
.input-group label {
  font-family: var(--mono);
  font-size: 0.67rem;
  letter-spacing: 0.04em;
  color: var(--text2);
}
.input-group input,
.input-group select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  padding: 7px 10px;
  width: 100%;
  transition: border-color 0.15s;
  outline: none;
}
.input-group input:focus,
.input-group select:focus { border-color: var(--accent); }
.input-group select option { background: var(--surface2); }

/* Orientierung */
.orient-toggle { display: flex; gap: 0.4rem; }
.orient-btn {
  flex: 1; padding: 7px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text2);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.15s;
  display: flex; align-items: center; justify-content: center; gap: 4px;
}
.orient-btn.active { background: rgba(200,150,59,0.1); border-color: var(--accent); color: var(--accent); }

/* Schichten */
.layers-list { display: flex; flex-direction: column; gap: 0.45rem; }
.layer-row {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem;
  position: relative;
  transition: border-color 0.15s;
}
.layer-row:hover { border-color: var(--accent); }
.layer-row .layer-num {
  font-family: var(--mono); font-size: 0.58rem;
  color: var(--text3);
  position: absolute; top: 7px; right: 9px;
}
.layer-select-row { display: flex; gap: 5px; margin-bottom: 5px; }
.layer-select-row select {
  flex: 1;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text);
  font-family: var(--sans); font-size: 0.8rem;
  padding: 5px 7px; outline: none; cursor: pointer;
  transition: border-color 0.15s;
}
.layer-select-row select:focus { border-color: var(--accent); }
.del-btn {
  background: none; border: 1px solid var(--border);
  border-radius: 4px; color: var(--text3); cursor: pointer;
  width: 28px; font-size: 1rem; transition: all 0.15s;
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
}
.del-btn:hover { border-color: var(--danger); color: var(--danger); }
.layer-params { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 4px; }
.layer-param { display: flex; flex-direction: column; gap: 2px; }
.layer-param label { font-family: var(--mono); font-size: 0.6rem; color: var(--text3); }
.layer-param input {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 3px; color: var(--text);
  font-family: var(--mono); font-size: 0.78rem;
  padding: 4px 6px; outline: none; width: 100%;
  transition: border-color 0.15s;
}
.layer-param input:focus { border-color: var(--accent); }
.layer-param input.auto { color: var(--success); border-color: rgba(79,201,138,0.3); }
.layer-cat { font-size: 0.63rem; color: var(--text3); font-style: italic; margin-top: 3px; }

.add-layer-btn {
  margin-top: 0.45rem; width: 100%; padding: 8px;
  border-radius: 4px; border: 1px dashed var(--border);
  background: none; color: var(--text3);
  font-family: var(--mono); font-size: 0.72rem;
  cursor: pointer; transition: all 0.15s;
}
.add-layer-btn:hover { border-color: var(--accent); color: var(--accent); }

/* Ergebnisse */
.results-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.result-card {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 6px; padding: 0.7rem; text-align: center;
}
.result-card .val {
  font-family: var(--mono); font-size: 1.05rem;
  color: var(--accent); font-weight: 500;
}
.result-card .val.danger  { color: var(--danger); }
.result-card .val.success { color: var(--success); }
.result-card .lbl {
  font-size: 0.62rem; color: var(--text3);
  margin-top: 3px; font-family: var(--mono); letter-spacing: 0.04em;
}

/* Kondensations-Warnung */
.condensation-warn {
  background: rgba(194,90,90,0.1);
  border: 1px solid var(--danger);
  border-left: 3px solid var(--danger);
  border-radius: 4px;
  padding: 0.7rem 0.85rem;
  font-size: 0.78rem;
  color: var(--danger);
  margin-top: 0.65rem;
  display: none;
  font-family: var(--mono);
  letter-spacing: 0.02em;
}
.condensation-warn.show { display: block; }

/* Sidebar Footer */
.sidebar footer {
  margin-top: auto;
  padding: 0.75rem 1.25rem;
  border-top: 1px solid var(--border);
}
.sidebar footer .tag {
  font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.06em; color: var(--text3);
  background: none;
}

/* ================================================================
   MAIN CONTENT
   ================================================================ */
.main {
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  background: var(--bg);
}
.main::-webkit-scrollbar { width: 4px; }
.main::-webkit-scrollbar-thumb { background: var(--border); }

/* Tabs */
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Chart Panels */
.chart-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
}
.chart-panel h3 {
  font-family: var(--mono); font-size: 0.67rem;
  letter-spacing: 0.1em; color: var(--text3);
  text-transform: uppercase; margin-bottom: 1rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.chart-panel h3::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.chart-wrap { position: relative; height: 265px; }

/* Schematik */
.wall-schematic {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; padding: 1.25rem;
}
.wall-schematic h3 {
  font-family: var(--mono); font-size: 0.67rem;
  letter-spacing: 0.1em; color: var(--text3);
  text-transform: uppercase; margin-bottom: 1.1rem;
}
.schematic-container { position: relative; }
.schematic-h {
  display: flex; align-items: stretch; gap: 0;
  min-height: 120px; border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden;
}
.schematic-v {
  display: flex; flex-direction: column; align-items: stretch; gap: 0;
  border: 1px solid var(--border); border-radius: 4px; overflow: hidden;
}
.layer-block {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 0.5rem; position: relative;
  transition: all 0.25s; cursor: default; min-width: 55px;
}
.layer-block-v {
  display: flex; flex-direction: row;
  align-items: center; padding: 0.5rem 1rem;
  min-height: 50px; position: relative;
}
.layer-block .layer-name,
.layer-block-v .layer-name {
  font-size: 0.62rem; font-weight: 600;
  color: rgba(0,0,0,0.7); text-align: center;
  line-height: 1.3; max-width: 90%; word-break: break-word;
}
.layer-block-v .layer-name { max-width: 200px; text-align: left; }
.layer-block .layer-d,
.layer-block-v .layer-d {
  font-size: 0.58rem; color: rgba(0,0,0,0.5); font-family: monospace; margin-top: 3px;
}
.layer-block-v .layer-d { margin-top: 0; margin-left: auto; }
.schematic-label {
  font-size: 0.68rem; font-family: var(--mono);
  color: var(--text3); display: flex; align-items: center; gap: 0.4rem; padding: 0.4rem 0;
}
.schematic-label.inside  { color: var(--warn); }
.schematic-label.outside { color: var(--accent); }
.schematic-labels-h { display: flex; justify-content: space-between; margin-top: 0.4rem; }
.schematic-labels-v {
  display: flex; flex-direction: column; gap: 0.5rem;
  position: absolute; left: -90px; top: 0; bottom: 0; justify-content: space-between;
}

/* Datentabelle */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.data-table th {
  font-family: var(--mono); font-size: 0.6rem;
  letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--text3); padding: 8px 10px;
  border-bottom: 1px solid var(--border); text-align: left;
  background: var(--surface); position: sticky; top: 0;
}
.data-table td {
  padding: 7px 10px; border-bottom: 1px solid rgba(42,46,51,0.6);
  font-family: var(--mono); font-size: 0.75rem; color: var(--text2);
}
.data-table tr:hover td { background: var(--surface2); }
.data-table td.condensation { color: var(--danger); font-weight: 600; }
.data-table td.ok { color: var(--success); }
.data-table td.highlight { color: var(--text); }

/* Materialdatenbank */
.mat-lib {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; overflow: hidden;
}
.mat-lib-header {
  padding: 1rem 1.25rem; display: flex; align-items: center;
  gap: 0.85rem; border-bottom: 1px solid var(--border);
}
.mat-lib-header h3 {
  font-family: var(--mono); font-size: 0.67rem;
  letter-spacing: 0.1em; color: var(--text3); text-transform: uppercase;
}
.mat-search {
  flex: 1; background: var(--surface2); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); font-family: var(--mono);
  font-size: 0.8rem; padding: 6px 10px; outline: none;
  transition: border-color 0.15s;
}
.mat-search:focus { border-color: var(--accent); }
.mat-add-btn {
  background: var(--accent); color: var(--bg); border: none;
  border-radius: 4px; padding: 6px 12px; font-family: var(--mono);
  font-size: 0.72rem; letter-spacing: 0.04em; cursor: pointer;
  transition: opacity 0.15s; white-space: nowrap;
}
.mat-add-btn:hover { opacity: 0.85; }

.cat-filter {
  display: flex; gap: 0.35rem; padding: 0.65rem 1.25rem;
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.cat-pill {
  padding: 3px 10px; border-radius: 100px;
  border: 1px solid var(--border); background: none;
  color: var(--text3); font-size: 0.68rem; cursor: pointer;
  transition: all 0.15s; font-family: var(--mono);
}
.cat-pill:hover { color: var(--text); border-color: var(--text3); }
.cat-pill.active { background: rgba(200,150,59,0.1); border-color: var(--accent); color: var(--accent); }

.mat-table-wrap { overflow-x: auto; max-height: 420px; overflow-y: auto; }
.mat-table { width: 100%; border-collapse: collapse; font-size: 0.78rem; }
.mat-table th {
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--text3); padding: 8px 12px;
  border-bottom: 1px solid var(--border); text-align: left;
  background: var(--surface); position: sticky; top: 0; white-space: nowrap;
}
.mat-table td {
  padding: 7px 12px; border-bottom: 1px solid rgba(42,46,51,0.6);
  color: var(--text2); font-family: var(--mono); white-space: nowrap;
}
.mat-table tr:hover td { background: var(--surface2); }
.mat-table td.mat-name { color: var(--text); font-family: var(--sans); font-size: 0.82rem; }
.mat-table td.cat-cell { font-family: var(--mono); font-size: 0.72rem; }
.mat-table .use-btn {
  background: rgba(200,150,59,0.1); border: 1px solid rgba(200,150,59,0.3);
  border-radius: 3px; color: var(--accent); font-size: 0.68rem;
  padding: 3px 8px; cursor: pointer; transition: all 0.15s; font-family: var(--mono);
}
.mat-table .use-btn:hover { background: rgba(200,150,59,0.2); }
.mat-table .del-mat-btn {
  background: none; border: 1px solid transparent; border-radius: 3px;
  color: var(--text3); font-size: 0.75rem; padding: 3px 6px; cursor: pointer; transition: all 0.15s;
}
.mat-table .del-mat-btn:hover { border-color: var(--danger); color: var(--danger); }
.mat-table .edit-btn {
  background: none; border: 1px solid transparent; border-radius: 3px;
  color: var(--text3); font-size: 0.75rem; padding: 3px 6px; cursor: pointer; transition: all 0.15s;
}
.mat-table .edit-btn:hover { border-color: var(--warn); color: var(--warn); }

.cat-dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 4px; vertical-align: middle; }

/* Material-Formular */
.add-mat-form {
  padding: 1rem 1.25rem; border-top: 1px solid var(--border);
  display: none; animation: slideDown 0.2s ease;
}
.add-mat-form.show { display: block; }
@keyframes slideDown { from { opacity:0; transform:translateY(-6px); } to { opacity:1; transform:translateY(0); } }
.add-mat-form h4 {
  font-family: var(--mono); font-size: 0.65rem;
  color: var(--text3); letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 0.7rem;
}
.form-row { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 0.45rem; align-items: end; }
.form-row .fi { display: flex; flex-direction: column; gap: 3px; }
.form-row label { font-size: 0.63rem; color: var(--text3); font-family: var(--mono); }
.form-row input, .form-row select {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 4px; color: var(--text); font-family: var(--mono);
  font-size: 0.8rem; padding: 6px 8px; outline: none;
  transition: border-color 0.15s; width: 100%;
}
.form-row input:focus, .form-row select:focus { border-color: var(--accent); }
.form-actions { display: flex; gap: 0.45rem; margin-top: 0.65rem; }
.btn-primary {
  background: var(--accent); color: var(--bg); border: none;
  border-radius: 4px; padding: 7px 14px; font-family: var(--mono);
  font-size: 0.72rem; font-weight: 500; cursor: pointer; transition: opacity 0.15s;
}
.btn-primary:hover { opacity: 0.85; }
.btn-ghost {
  background: none; border: 1px solid var(--border); border-radius: 4px;
  padding: 7px 12px; color: var(--text2); font-family: var(--mono);
  font-size: 0.72rem; cursor: pointer; transition: all 0.15s;
}
.btn-ghost:hover { border-color: var(--text2); color: var(--text); }

/* Schraffur-Picker */
.hatch-opt {
  display: inline-flex; flex-direction: column; align-items: center;
  padding: 3px; border: 2px solid var(--border); border-radius: 4px;
  cursor: pointer; transition: all 0.15s; background: var(--surface2);
}
.hatch-opt:hover { border-color: var(--accent); transform: scale(1.08); }
.hatch-opt.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(200,150,59,0.3);
  background: rgba(200,150,59,0.08);
}
.hatch-opt svg { border-radius: 2px; display: block; }

/* ── Kategorie-Farben ── */
.c-putz      { background: #c4a200; }
.c-mauerwerk { background: #c8963b; }
.c-beton     { background: #7a8faa; }
.c-daemmung  { background: #4fc98a; }
.c-holz      { background: #d47f4a; }
.c-trockenbau{ background: #9a9aaa; }
.c-boden     { background: #a07cc0; }
.c-folie     { background: #e05a5a; }
.c-fassade   { background: #5aaa7a; }
.c-sonstige  { background: #555; }

/* ── Layer-Farb-Palette ── */
.lc-0 { background:rgba(200,150,59,0.18); border-left:3px solid #c8963b; }
.lc-1 { background:rgba(249,123,79,0.18); border-left:3px solid #f97b4f; }
.lc-2 { background:rgba(79,201,138,0.18); border-left:3px solid #4fc98a; }
.lc-3 { background:rgba(90,154,181,0.18); border-left:3px solid #5a9ab5; }
.lc-4 { background:rgba(190,79,249,0.18); border-left:3px solid #be4ff9; }
.lc-5 { background:rgba(230,180,101,0.18);border-left:3px solid #e6b465; }
.lc-6 { background:rgba(249,79,149,0.18); border-left:3px solid #f94f95; }
.lc-7 { background:rgba(160,249,79,0.18); border-left:3px solid #a0f94f; }

.wall-lc-0 { background:rgba(200,150,59,0.35); }
.wall-lc-1 { background:rgba(249,123,79,0.35); }
.wall-lc-2 { background:rgba(79,201,138,0.35); }
.wall-lc-3 { background:rgba(90,154,181,0.35); }
.wall-lc-4 { background:rgba(190,79,249,0.35); }
.wall-lc-5 { background:rgba(230,180,101,0.35);}
.wall-lc-6 { background:rgba(249,79,149,0.35); }
.wall-lc-7 { background:rgba(160,249,79,0.35); }

.empty-state {
  text-align: center; padding: 3rem; color: var(--text3);
  font-size: 0.8rem; font-family: var(--mono);
}

/* Print-Frame */
#print-frame {
  display: none; position: fixed; top: 0; left: 0;
  width: 100%; height: 100%; border: none; z-index: 99999; background: #fff;
}
@media print {
  body > *:not(#print-frame) { display: none !important; }
  #print-frame { display: block !important; position: static !important; width: 100% !important; height: auto !important; }
}

/* Sidebar-Backdrop */
.sidebar-backdrop {
  display: none; position: fixed;
  inset: 58px 0 0 0;
  background: rgba(0,0,0,0.6);
  z-index: 199; backdrop-filter: blur(2px);
}
.sidebar-backdrop.show { display: block; }

/* Bottom Nav */
.bottom-nav {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  height: 56px; background: var(--surface); border-top: 1px solid var(--border);
  z-index: 300; align-items: stretch;
}
.bottom-nav-btn {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 2px; background: none; border: none;
  color: var(--text3); font-size: 0.55rem; font-family: var(--mono);
  cursor: pointer; transition: color 0.15s; padding: 6px 2px 8px;
  border-top: 2px solid transparent; letter-spacing: 0.02em;
  text-transform: uppercase; touch-action: manipulation;
}
.bottom-nav-btn svg { width: 20px; height: 20px; }
.bottom-nav-btn.active { color: var(--accent); border-top-color: var(--accent); }

/* ================================================================
   RESPONSIVE
   ================================================================ */
@media (max-width: 1100px) {
  .app { grid-template-columns: 280px 1fr; }
}

@media (max-width: 800px) {
  header { padding: 0 0.75rem; gap: 0.45rem; height: 52px; }
  header .fl-logo span:not(.logo-window):not(em) { display: none; }
  .sidebar-toggle { display: flex !important; }
  .app { grid-template-columns: 1fr; height: calc(100vh - 52px); }
  .sidebar {
    position: fixed; top: 52px; left: 0;
    width: min(300px, 88vw); height: calc(100vh - 52px);
    z-index: 200; transform: translateX(-100%);
    transition: transform 0.26s cubic-bezier(.4,0,.2,1);
    box-shadow: 4px 0 28px rgba(0,0,0,0.5);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-backdrop { inset: 52px 0 0 0; }
  .main { padding: 1rem; }
  .print-btn span { display: none; }
  .print-orient-toggle { display: none; }
  .climate-grid { grid-template-columns: 1fr 1fr 1fr 1fr; }
  .chart-wrap { height: 210px; }
  .home-btn span { display: none; }
}

@media (max-width: 480px) {
  header { padding: 0 0.5rem; gap: 0.3rem; height: 50px; }
  header h1 { font-size: 0.72rem; }
  .app { height: calc(100vh - 50px - 56px); overflow: hidden; }
  .sidebar { top: 50px; height: calc(100vh - 50px - 56px); width: min(290px, 92vw); }
  .sidebar-backdrop { inset: 50px 0 56px 0; }
  header nav { display: none; }
  .home-btn { display: none; }
  .nav-divider { display: none; }
  .bottom-nav { display: flex !important; }
  .climate-grid { grid-template-columns: 1fr 1fr; gap: 0.55rem; }
  .chart-wrap { height: 190px; }
  .results-grid { grid-template-columns: 1fr 1fr; gap: 0.45rem; }
  .section { padding: 0.85rem; }
  .mat-table th:nth-child(2), .mat-table td:nth-child(2),
  .mat-table th:nth-child(6), .mat-table td:nth-child(6) { display: none; }
  .form-row { grid-template-columns: 1fr 1fr !important; gap: 0.35rem; }
  .form-row .fi:first-child { grid-column: span 2; }
  .input-group input, .layer-select-row select, .layer-param input { font-size: 1rem; }
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .bottom-nav {
    padding-bottom: env(safe-area-inset-bottom);
    height: calc(56px + env(safe-area-inset-bottom));
  }
  @media (max-width: 480px) {
    .app { height: calc(100vh - 50px - 56px - env(safe-area-inset-bottom)); }
    .sidebar { height: calc(100vh - 50px - 56px - env(safe-area-inset-bottom)); }
  }
}

/* ================================================================
   PRINT
   ================================================================ */
@media print {
  @page { size: A4 portrait; margin: 15mm; }
  * { -webkit-print-color-adjust: exact !important; print-color-adjust: exact !important; }
  body { background: #fff !important; color: #111 !important; font-family: Arial, sans-serif; font-size: 10pt; display: block !important; }
  header, .sidebar, .print-btn { display: none !important; }
  .app { display: block !important; height: auto !important; overflow: visible !important; }
  .main { display: block !important; overflow: visible !important; padding: 0 !important; }
  .tab-content { display: block !important; }
  .print-header {
    display: flex !important; justify-content: space-between;
    align-items: flex-start; border-bottom: 2px solid #8a6030;
    padding-bottom: 6mm; margin-bottom: 6mm;
  }
  .print-header h1 { font-size: 16pt; color: #8a6030; letter-spacing: 0.05em; margin: 0; }
  .print-header .print-meta { text-align: right; font-size: 8pt; color: #666; line-height: 1.6; }
  .print-section-title {
    display: block !important; font-size: 7pt; letter-spacing: 0.12em;
    text-transform: uppercase; color: #888; border-bottom: 1px solid #ddd;
    padding-bottom: 2mm; margin: 5mm 0 3mm;
  }
  .print-results { display: grid !important; grid-template-columns: repeat(4,1fr); gap: 3mm; margin-bottom: 5mm; }
  .print-result-card { border: 1px solid #ddd; border-radius: 3px; padding: 3mm; text-align: center; background: #f9f7f3 !important; }
  .print-result-card .pval { font-size: 13pt; font-weight: bold; color: #8a6030; }
  .print-result-card .pval.pdanger { color: #c00; }
  .print-result-card .pval.psuccess { color: #2a7a2a; }
  .print-result-card .plbl { font-size: 7pt; color: #888; margin-top: 1mm; }
  .print-layer-table { width: 100%; border-collapse: collapse; font-size: 9pt; margin-bottom: 4mm; }
  .print-layer-table th { background: #8a6030 !important; color: #fff !important; font-size: 7pt; letter-spacing: 0.06em; padding: 2mm 3mm; text-align: left; }
  .print-layer-table td { padding: 2mm 3mm; border-bottom: 1px solid #eee; color: #333; }
  .print-layer-table tr:nth-child(even) td { background: #faf8f4 !important; }
  .print-layer-table td.cond-yes { color: #c00; font-weight: bold; }
  .print-layer-table td.cond-no  { color: #2a7a2a; }
  .print-charts { display: grid !important; grid-template-columns: 1fr 1fr; gap: 5mm; page-break-inside: avoid; margin-bottom: 5mm; }
  .print-chart-box { border: 1px solid #ddd; border-radius: 3px; padding: 3mm; }
  .print-chart-box h4 { font-size: 8pt; color: #8a6030; margin-bottom: 2mm; }
  .print-chart-box canvas { width: 100% !important; height: 180px !important; }
  .print-schematic { border: 1px solid #ddd; border-radius: 3px; padding: 4mm; margin-bottom: 5mm; }
  .print-schematic h4 { font-size: 8pt; color: #8a6030; margin-bottom: 3mm; }
  .print-warn { background: #fff0f0 !important; border: 1.5px solid #c00; border-radius: 3px; padding: 3mm 4mm; color: #c00; font-size: 9pt; font-weight: bold; margin: 3mm 0; }
  .print-footer { display: block !important; margin-top: 8mm; border-top: 1px solid #ddd; padding-top: 3mm; font-size: 7pt; color: #aaa; display: flex; justify-content: space-between; }
  .chart-panel, .wall-schematic, .data-table, .mat-lib { display: none !important; }
}

/* ── HILFE-BUTTON in der Nav ─────────────────────────────── */
.help-nav-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 11px;
  border-radius: 4px;
  border: 1px solid rgba(200,150,59,0.25);
  background: rgba(200,150,59,0.06);
  color: var(--accent2);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.help-nav-btn:hover {
  background: rgba(200,150,59,0.14);
  border-color: var(--accent);
  color: var(--accent);
}
.help-nav-btn svg { flex-shrink: 0; }

@media (max-width: 800px) {
  .help-nav-btn span { display: none; }
  .help-nav-btn { padding: 5px 9px; }
}