:root {
  --bg:     #f4f6f9;
  --card:   #ffffff;
  --dark:   #1e2d3d;
  --accent: #2c6fad;
  --good:   #1a7f4b;
  --warn:   #b45309;
  --bad:    #b91c1c;
  --border: #d1d8e0;
  --text:   #1a202c;
  --muted:  #6b7280;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Arial, sans-serif; background: var(--bg); color: var(--text); font-size: 15px; }

/* ── Topbar ── */
.topbar {
  background: var(--dark);
  color: #fff;
  padding: 14px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand strong { font-size: 18px; letter-spacing: 1px; }
.brand .subtitle { margin-left: 14px; color: #9baab8; font-size: 12px; }
nav a { color: #9baab8; text-decoration: none; font-size: 13px; }
nav a:hover { color: #fff; }

/* ── Layout ── */
main { max-width: 960px; margin: 32px auto; padding: 0 16px; }
footer { text-align: center; padding: 24px; color: var(--muted); font-size: 12px; }

/* ── Card ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 28px 32px;
  margin-bottom: 24px;
  box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.card h1 { font-size: 22px; color: var(--dark); margin-bottom: 4px; }
.card h2 { font-size: 18px; color: var(--dark); margin-bottom: 16px; }
.card h3 { font-size: 14px; color: var(--muted); margin: 16px 0 8px; text-transform: uppercase; letter-spacing: .5px; }
.subtitle { color: var(--muted); font-size: 13px; margin-bottom: 22px; }

/* ── IFC Import ── */
.ifc-card { border-left: 4px solid #e67e22; padding: 16px 24px; margin-bottom: 16px; }
.ifc-header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.ifc-icon { font-size: 22px; color: #e67e22; }
.ifc-sub { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; }
.ifc-drop {
  border: 2px dashed var(--border); border-radius: 8px;
  padding: 18px; text-align: center; cursor: pointer;
  transition: border-color .2s, background .2s;
}
.ifc-drop:hover, .ifc-drop.drag-over {
  border-color: #e67e22; background: #fff8f0;
}
.ifc-drop-label { cursor: pointer; font-size: 14px; color: var(--accent); display: block; }
.ifc-hint { display: block; font-size: 11px; color: var(--muted); margin-top: 4px; }
.ifc-loading { padding: 8px 0; color: var(--muted); font-size: 13px; }
.ifc-ok  { padding: 8px 0; color: var(--good); font-size: 13px; font-weight: 600; }
.ifc-warn { padding: 4px 0; color: var(--warn); font-size: 12px; }
.ifc-error { padding: 8px 0; color: var(--bad); font-size: 13px; }
.ifc-layers { font-size: 12px; color: var(--muted); padding: 3px 0; }

/* ── Formular ── */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
fieldset { border: 1px solid var(--border); border-radius: 6px; padding: 14px 16px; }
legend { font-size: 13px; font-weight: 600; color: var(--accent); padding: 0 6px; }
label { display: block; font-size: 13px; color: var(--muted); margin-top: 10px; }
label:first-child { margin-top: 0; }
input[type=number], input[type=text] {
  display: block; width: 100%; margin-top: 4px;
  padding: 7px 10px; border: 1px solid var(--border); border-radius: 5px;
  font-size: 14px; color: var(--text);
}
input:focus { outline: 2px solid var(--accent); border-color: transparent; }
small { display: block; margin-top: 3px; font-size: 11px; color: #9baab8; }

/* ── Buttons ── */
.btn-row { margin-top: 20px; display: flex; align-items: center; gap: 16px; }
.btn-primary {
  background: var(--accent); color: #fff; border: none;
  padding: 10px 28px; border-radius: 6px; font-size: 15px; cursor: pointer;
}
.btn-primary:hover { background: #1a5a96; }
.btn-pdf {
  background: var(--dark); color: #fff; border: none;
  padding: 9px 22px; border-radius: 6px; font-size: 14px; cursor: pointer;
}
.btn-pdf:hover { background: #0f1c2a; }

/* ── HTMX Spinner ── */
.htmx-indicator { display: none; color: var(--muted); font-size: 13px; }
.htmx-request .htmx-indicator { display: inline; }

/* ── Kennwert-Boxen ── */
.kennwerte { display: flex; gap: 16px; margin-bottom: 24px; }
.kw-box {
  flex: 1; border-radius: 8px; padding: 16px 20px; text-align: center;
  border: 2px solid;
}
.kw-box.gut    { background: #f0fdf4; border-color: #16a34a; }
.kw-box.mittel { background: #fffbeb; border-color: #d97706; }
.kw-box.schlecht { background: #fef2f2; border-color: #dc2626; }
.kw-label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; color: var(--muted); }
.kw-value { font-size: 32px; font-weight: 700; margin: 6px 0 2px; }
.kw-unit  { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.kw-norm  { font-size: 12px; }
.gut    .kw-norm { color: var(--good); }
.mittel .kw-norm { color: var(--warn); }
.schlecht .kw-norm { color: var(--bad); }
.gut    .kw-value { color: var(--good); }
.mittel .kw-value { color: var(--warn); }
.schlecht .kw-value { color: var(--bad); }

/* ── IPROconsult-Bar ── */
.ipc-bar {
  background: #1a4a7a;
  color: #fff;
  padding: 7px 32px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 13px;
  border-bottom: 3px solid #e67e22;
}
.ipc-logo {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 1.5px;
  color: #fff;
}
.ipc-divider { color: #e67e22; font-weight: 700; }
.ipc-text { color: #b8d0e8; font-size: 12px; flex: 1; }
.ipc-badge {
  background: #e67e22;
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  letter-spacing: 1px;
}

/* ── Plot ── */
.plots-row { display: flex; gap: 16px; margin: 16px 0; }
.plot-col { flex: 1; min-width: 0; }
.plot-label { font-size: 12px; font-weight: 600; color: var(--muted); margin-bottom: 6px; text-align: center; }
.plot-wrap { text-align: center; margin: 16px 0; }
.plot-img { max-width: 100%; border: 1px solid var(--border); border-radius: 6px; }

/* ── Normtabelle ── */
.norm-box { margin-bottom: 20px; }
.norm-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.norm-table th { background: #1a4a7a; color: #fff; padding: 7px 12px; text-align: left; }
.norm-table td { padding: 6px 12px; border-bottom: 1px solid var(--border); }
.norm-table tr.row-ok td { background: #f0fdf4; }
.norm-table tr.row-fail td { background: #fef2f2; }

/* ── Parametertabelle ── */
.param-table table { width: 100%; border-collapse: collapse; font-size: 13px; }
.param-table th { background: var(--dark); color: #fff; padding: 7px 12px; text-align: left; }
.param-table td { padding: 6px 12px; border-bottom: 1px solid var(--border); }
.param-table tr:nth-child(even) td { background: #f8f9fb; }