/* ═══════════════════════════════════════════════════════════
   ATTIKAHOLZ-RECHNER · Blueprint / Technical Drawing Theme
   ═══════════════════════════════════════════════════════════ */

:root {
  /* Blueprint palette */
  --bg:         #0a1628;
  --bg2:        #0f1f3d;
  --bg3:        #162845;
  --surface:    #0d1a30;
  --surface2:   #132038;
  --surface3:   #1a2d4a;

  --border:     #1e3254;
  --border2:    #264070;
  --border3:    #2e5090;

  --text:       #d4dff0;
  --text-muted: #5a7aaa;
  --text-dim:   #2a4060;

  --cyan:       #00c8e0;
  --cyan-dim:   rgba(0,200,224,0.12);
  --cyan-glow:  rgba(0,200,224,0.08);
  --gold:       #e8b84b;
  --gold-dim:   rgba(232,184,75,0.12);
  --ok:         #3dd68c;
  --ok-dim:     rgba(61,214,140,0.12);
  --warn:       #f59e0b;
  --danger:     #f1545e;

  /* Blueprint grid line color */
  --grid-line:  rgba(0,140,200,0.07);

  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --sans: 'Space Grotesk', system-ui, sans-serif;

  --r:  4px;
  --r2: 8px;
  --r3: 12px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* Blueprint grid background */
.grid-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(rgba(0,140,200,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,140,200,0.025) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 20px 20px, 20px 20px;
}

/* ── HEADER ──────────────────────────────────────────── */
.header {
  position: relative;
  z-index: 10;
  background: linear-gradient(180deg, #08111f 0%, var(--bg2) 100%);
  border-bottom: 1px solid var(--border2);
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--gold) 60%, transparent);
}

.header-inner {
  padding: 20px 32px 20px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.header-top-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
}

.header-title-group {
  flex: 1;
  min-width: 0;
}

.header-badge {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.20em;
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid rgba(0,200,224,0.25);
  padding: 3px 10px;
  border-radius: 99px;
  margin-bottom: 12px;
}

.header h1 {
  font-size: clamp(24px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: #fff;
}

.amp { color: var(--cyan); }

.header-sub {
  margin-top: 8px;
  font-size: 13px;
  font-weight: 300;
  color: var(--text-muted);
}

.header-warn {
  background: rgba(241,84,94,0.08);
  border-top: 1px solid rgba(241,84,94,0.2);
  padding: 9px 40px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.05em;
  color: var(--danger);
  opacity: 0.85;
}

/* ── LAYOUT ──────────────────────────────────────────── */
.app {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 360px 1fr;
  grid-template-areas:
    "inputs  results"
    "drawing drawing"
    "order   order"
    "info    info";
  gap: 1px;
  background: var(--border);
}

.col-inputs  { grid-area: inputs; background: var(--surface); }
.col-results { grid-area: results; background: var(--surface); display: flex; flex-direction: column; gap: 1px; }
.col-full    { grid-area: unset; grid-column: 1 / -1; background: var(--surface); }

.col-results .card { flex: 1; }

/* ── CARDS ───────────────────────────────────────────── */
.card {
  background: var(--surface);
  padding: 28px 32px;
  border: none;
  position: relative;
  animation: fadeIn 0.4s ease both;
}

.card--primary { background: var(--surface2); }
.card--drawing { background: var(--bg); }
.card--info    { background: var(--bg2); }

.card-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 14px;
}

.step {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--cyan);
  background: var(--cyan-dim);
  padding: 2px 7px;
  border-radius: 99px;
  letter-spacing: 0.08em;
}

/* ── INPUTS ──────────────────────────────────────────── */
.field-group {
  margin-bottom: 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.field-group:last-child { border-bottom: none; margin-bottom: 0; }

.field-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  margin-bottom: 10px;
}
.field:last-child { margin-bottom: 0; }

.field-row {
  display: flex;
  gap: 12px;
}
.field-row .field { margin-bottom: 0; }

label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}
label em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-dim);
}

.field-note {
  font-size: 10px;
  color: var(--text-dim);
  font-style: italic;
}

input[type="number"],
input[type="text"],
input[type="date"],
select {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px; /* prevents iOS zoom */
  padding: 10px 12px;
  width: 100%;
  min-height: 44px; /* touch target */
  transition: border-color 0.15s, box-shadow 0.15s;
  -webkit-appearance: none;
  appearance: none;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 5 5-5' stroke='%235a7aaa' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  cursor: pointer;
}

/* Info box */
.info-box {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-left: 3px solid var(--cyan);
  border-radius: var(--r2);
  padding: 14px 16px;
  margin-top: 20px;
}

.info-box-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.info-kv {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.info-kv:last-child { border-bottom: none; }
.info-kv span { color: var(--text-muted); }
.info-kv strong {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
}

/* ── NORM GRID ───────────────────────────────────────── */
.norm-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 20px;
}

.norm-block {
  background: var(--surface3);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 14px 16px;
}

.norm-block::before {
  content: '';
  display: block;
  height: 2px;
  background: var(--border3);
  border-radius: 99px;
  margin-bottom: 12px;
}

.norm-block-head {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.kv {
  display: flex;
  align-items: baseline;
  gap: 6px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.kv:last-child { border-bottom: none; }
.kv > span { color: var(--text-muted); flex: 1; }
.kv > u    { font-family: var(--mono); font-size: 10px; color: var(--text-dim); text-decoration: none; }

val {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  font-weight: 500;
  text-align: right;
  min-width: 52px;
}

/* Result summary */
.result-summary {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 14px;
  align-items: center;
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  padding: 16px 18px;
}

.result-big {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.result-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.10em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.result-value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1;
}
.result-value.accent { color: var(--gold); }

.ausn-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ausn-bar {
  width: 80px;
  height: 6px;
  background: var(--surface);
  border-radius: 99px;
  overflow: hidden;
}

.ausn-fill {
  height: 100%;
  width: 0%;
  background: var(--ok);
  border-radius: 99px;
  transition: width 0.45s cubic-bezier(0.4,0,0.2,1), background 0.3s;
}

.ausn-pct {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text);
  min-width: 44px;
}

.verdict-wrap { grid-column: 4; }

.verdict {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 99px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  font-weight: 500;
  background: var(--ok-dim);
  color: var(--ok);
  border: 1px solid rgba(61,214,140,0.25);
}
.verdict.warn   { background: var(--gold-dim); color: var(--gold); border-color: rgba(232,184,75,0.25); }
.verdict.danger { background: rgba(241,84,94,0.12); color: var(--danger); border-color: rgba(241,84,94,0.25); }

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

.vtable {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 12px;
}

.vtable th {
  background: var(--surface3);
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  padding: 10px 14px;
  text-align: right;
  border-bottom: 2px solid var(--border2);
  white-space: nowrap;
}
.vtable th:first-child { text-align: left; }

.vtable td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  color: var(--text);
  transition: background 0.1s;
}
.vtable td:first-child { text-align: left; }
.vtable tbody tr:hover td { background: var(--surface3); }

.row-rec    td { background: rgba(61,214,140,0.05) !important; }
.row-rec    td:first-child { color: var(--ok); font-weight: 600; }
.row-active td { background: rgba(232,184,75,0.05) !important; }
.row-active td:first-child { color: var(--gold); }
.row-bad    td { opacity: 0.4; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.04em;
}
.b-ok     { background: rgba(61,214,140,0.15); color: var(--ok); }
.b-warn   { background: rgba(245,158,11,0.15); color: var(--warn); }
.b-danger { background: rgba(241,84,94,0.15);  color: var(--danger); }
.b-info   { background: rgba(0,200,224,0.10);  color: var(--cyan); }

/* ── DRAWING ─────────────────────────────────────────── */
.drawing-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.dtab {
  background: var(--surface3);
  border: 1px solid var(--border2);
  color: var(--text-muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  padding: 7px 18px;
  border-radius: 99px;
  cursor: pointer;
  transition: all 0.15s;
}
.dtab:hover { border-color: var(--cyan); color: var(--cyan); }
.dtab--active {
  background: var(--cyan-dim);
  border-color: rgba(0,200,224,0.4);
  color: var(--cyan);
}

.drawing-area {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--r3);
  overflow: hidden;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drawing-pane {
  width: 100%;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.drawing-pane.hidden { display: none; }

.drawing-pane svg {
  width: 100%;
  max-width: 860px;
  height: auto;
}

/* SVG drawing elements via CSS */
.dim-line { stroke: rgba(0,200,224,0.6); stroke-width: 1; }
.dim-arrow { stroke: rgba(0,200,224,0.6); fill: none; }
.dim-text { fill: #00c8e0; font-family: 'JetBrains Mono', monospace; font-size: 10px; }
.wood-board { fill: #8B6233; stroke: #6B4820; stroke-width: 1.5; }
.wood-grain { stroke: #7A5628; stroke-width: 0.4; fill: none; opacity: 0.6; }
.screw-body { fill: #607080; stroke: #455060; stroke-width: 1; }
.screw-head { fill: #7890A0; stroke: #556070; stroke-width: 1; }
.pilot-hole { fill: #2a3a50; stroke: rgba(0,200,224,0.4); stroke-width: 0.8; }
.sink-cone  { fill: #a09070; stroke: #8B7050; stroke-width: 0.8; }
.sep-line   { stroke: rgba(200,220,255,0.35); stroke-width: 1.5; stroke-dasharray: 6 3; }
.thread-line { stroke: #506070; stroke-width: 0.5; }
.countersink-ring { fill: none; stroke: rgba(0,200,224,0.3); stroke-width: 0.8; stroke-dasharray: 3 3; }
.fiber-arrow { stroke: #8B6233; fill: #8B6233; stroke-width: 1; }
.row-guide  { stroke: rgba(232,184,75,0.3); stroke-width: 0.6; stroke-dasharray: 4 4; }
.row-guide2 { stroke: rgba(0,200,224,0.2); stroke-width: 0.6; stroke-dasharray: 4 4; }

.drawing-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

/* ── ORDER / MONTAGE ─────────────────────────────────── */
.order-cols {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}

.order-sub {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 14px;
  font-family: var(--mono);
}

.order-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.order-row {
  display: flex;
  justify-content: space-between;
  padding: 7px 0;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.order-row:last-child { border-bottom: none; }
.order-row span { color: var(--text-muted); }
.order-row strong {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
}
.order-row.hl strong { color: var(--gold); font-size: 14px; }

.montage-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-left: 0;
  counter-reset: montage;
}

.montage-list li {
  counter-increment: montage;
  display: flex;
  gap: 12px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.montage-list li::before {
  content: counter(montage, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 10px;
  color: var(--cyan);
  background: var(--cyan-dim);
  padding: 2px 7px;
  border-radius: 99px;
  flex-shrink: 0;
  height: 20px;
  display: flex;
  align-items: center;
  margin-top: 1px;
}

.qa-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.qa-list li {
  display: flex;
  gap: 10px;
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.4;
}

.qa-list li::before {
  content: '✓';
  color: var(--ok);
  font-family: var(--mono);
  font-weight: 600;
  flex-shrink: 0;
}

/* ── ACCORDION ───────────────────────────────────────── */
.info-accordion {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.accordion-item {
  border: 1px solid var(--border2);
  border-radius: var(--r2);
  overflow: hidden;
}

.accordion-btn {
  width: 100%;
  background: var(--surface3);
  border: none;
  padding: 14px 18px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  transition: background 0.15s;
}

.accordion-btn:hover { background: var(--surface); }
.accordion-btn .chevron { transition: transform 0.2s; color: var(--text-muted); }
.accordion-btn.open .chevron { transform: rotate(180deg); }

.accordion-body {
  display: none;
  padding: 16px 18px;
  background: var(--surface);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
  border-top: 1px solid var(--border);
}
.accordion-body.open { display: block; }

.accordion-body table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 11px;
  margin-top: 10px;
}
.accordion-body th {
  background: var(--surface3);
  padding: 6px 12px;
  text-align: left;
  color: var(--text-muted);
  font-size: 10px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border2);
}
.accordion-body td {
  padding: 6px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.accordion-body tr:last-child td { border-bottom: none; }

/* ── FOOTER ──────────────────────────────────────────── */
.site-footer {
  position: relative;
  z-index: 1;
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 16px 40px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
}

.site-footer span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

/* ── ANIMATIONS ──────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes flashPulse {
  0%   { color: var(--cyan); }
  100% { color: inherit; }
}

.flashed { animation: flashPulse 0.5s ease; }

/* ── RESPONSIVE ──────────────────────────────────────── */

/* Tablet (≤ 1024px) */
@media (max-width: 1024px) {
  .app {
    grid-template-columns: 320px 1fr;
  }
}

/* Tablet-Portrait / großes Phone (≤ 960px) */
@media (max-width: 960px) {
  .app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "inputs"
      "results"
      "drawing"
      "order"
      "info";
  }
  .col-results { display: block; }
  .norm-grid { grid-template-columns: 1fr 1fr; }
  .result-summary { grid-template-columns: 1fr 1fr; }
  .verdict-wrap { grid-column: 1 / -1; }
  .order-cols { grid-template-columns: 1fr; }
  .bestell-header-grid { grid-template-columns: 1fr 1fr; }
}

/* Smartphone (≤ 640px) */
@media (max-width: 640px) {
  .header-inner { padding: 14px 16px 14px; }
  .header-warn  { padding: 8px 16px; font-size: 9px; }
  .header h1    { font-size: 22px; }
  .header-sub   { font-size: 12px; }

  .card { padding: 16px; }
  .card-title { font-size: 11px; margin-bottom: 16px; }

  /* Eingaben: alle field-rows stacken */
  .field-row { flex-direction: column; gap: 0; }
  .field-row .field { margin-bottom: 10px; }
  .field-row .field:last-child { margin-bottom: 0; }

  /* Norm-Grid: 1 Spalte */
  .norm-grid { grid-template-columns: 1fr; }

  /* Ergebnis-Zusammenfassung: 2 Spalten */
  .result-summary {
    grid-template-columns: 1fr 1fr;
    padding: 14px;
    gap: 12px;
  }
  .result-value { font-size: 20px; }
  .verdict-wrap { grid-column: 1 / -1; }
  .ausn-bar { width: 60px; }

  /* Tabelle: horizontal scrollbar */
  .table-wrap { -webkit-overflow-scrolling: touch; }
  .vtable { font-size: 11px; }
  .vtable th, .vtable td { padding: 7px 8px; }

  /* Toolbar: horizontal scroll statt wrap */
  .toolbar {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .toolbar::-webkit-scrollbar { display: none; }
  .tbtn .tbtn-label { display: none; } /* nur Icon auf Mobile */
  .tbtn { padding: 10px 12px; min-width: 44px; justify-content: center; }
  .tbtn svg { flex-shrink: 0; }

  /* Zeichnung */
  .drawing-area { min-height: 240px; border-radius: var(--r2); }
  .drawing-tabs { flex-wrap: wrap; gap: 6px; }
  .dtab { font-size: 10px; padding: 6px 12px; }

  /* Bestell-Header */
  .bestell-header-grid { grid-template-columns: 1fr; }

  /* Footer */
  .site-footer { padding: 12px 16px; gap: 6px 16px; }
  .site-footer span { font-size: 9px; }

  /* Logo */
  .logo { width: 52px; height: 48px; }
  .logotxt { font-size: 10px; }
}

/* Sehr kleines Phone (≤ 380px) */
@media (max-width: 380px) {
  .header h1 { font-size: 18px; }
  .result-summary { grid-template-columns: 1fr; }
  .norm-block--screw .diam-manual-wrap { flex-wrap: wrap; }
}

/* ── TOOLBAR ─────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.tbtn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--r2);
  border: 1px solid rgba(0,200,224,0.4);
  background: var(--cyan-dim);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
  min-height: 44px; /* touch target */
}

.tbtn:hover {
  background: rgba(0,200,224,0.2);
  border-color: var(--cyan);
  box-shadow: 0 0 16px rgba(0,200,224,0.15);
}

.tbtn:active {
  transform: translateY(1px);
}

.tbtn--secondary {
  border-color: var(--border2);
  background: var(--surface3);
  color: var(--text-muted);
}

.tbtn--secondary:hover {
  border-color: var(--border3);
  color: var(--text);
  background: var(--surface);
  box-shadow: none;
}

.toolbar-status {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ok);
  opacity: 0;
  transition: opacity 0.3s;
  letter-spacing: 0.05em;
}

.toolbar-status.visible {
  opacity: 1;
}

/* ═══════════════════════════════════════════════════════════
   DRUCK-CSS  ·  @media print
   ═══════════════════════════════════════════════════════════ */
@media print {
  /* Grundeinstellung */
  *, *::before, *::after {
    -webkit-print-color-adjust: exact !important;
    print-color-adjust: exact !important;
  }

  body {
    background: #fff !important;
    color: #111 !important;
    font-size: 11pt;
    font-family: 'Space Grotesk', Arial, sans-serif;
  }

  /* Verbergen was nicht gedruckt werden soll */
  .grid-bg,
  .toolbar,
  .drawing-tabs,
  .header-warn,
  .dtab,
  #btn-print,
  #btn-save-html,
  #btn-copy-summary {
    display: none !important;
  }

  /* Header anpassen */
  .header {
    background: #1a2a4a !important;
    color: #fff !important;
    border-bottom: 3px solid #00a8c0 !important;
    page-break-after: avoid;
    break-after: avoid;
  }

  .header-inner {
    padding: 16px 24px 14px !important;
  }

  .header h1 {
    font-size: 22pt !important;
    color: #fff !important;
  }

  .header-badge {
    color: #7fdde8 !important;
    border-color: #3a6080 !important;
    background: rgba(0,160,200,0.25) !important;
  }

  .header-sub { color: #a0b8d0 !important; }

  /* Layout: alles einspaltlig */
  .app {
    display: block !important;
    background: transparent !important;
  }

  /* Cards */
  .card {
    background: #fff !important;
    border: 1px solid #cbd5e1 !important;
    border-radius: 6px !important;
    margin-bottom: 14pt !important;
    padding: 14pt 16pt !important;
    page-break-inside: avoid;
    break-inside: avoid;
  }

  .card--primary { background: #f8fafc !important; }
  .card--drawing { background: #f0f4f8 !important; }
  .card--info    { background: #f8fafc !important; }

  .card-title {
    color: #1e3a5f !important;
    border-bottom: 1px solid #cbd5e1 !important;
    font-size: 10pt;
  }

  .step {
    background: #dbeafe !important;
    color: #1d4ed8 !important;
  }

  /* Inputs Spalte — kompakt drucken */
  .col-inputs {
    background: transparent !important;
  }

  /* Normgrid */
  .norm-block {
    background: #f1f5f9 !important;
    border-color: #cbd5e1 !important;
  }

  .norm-block-head { color: #475569 !important; }
  .kv > span { color: #475569 !important; }
  val { color: #0f172a !important; }

  /* Ergebnis-Summary */
  .result-summary {
    background: #e0f2fe !important;
    border-color: #0284c7 !important;
  }

  .result-value { color: #0f172a !important; }
  .result-value.accent { color: #92400e !important; }
  .result-label { color: #475569 !important; }

  .verdict {
    background: #dcfce7 !important;
    color: #166534 !important;
    border-color: #86efac !important;
  }
  .verdict.warn   { background: #fef3c7 !important; color: #92400e !important; border-color: #fcd34d !important; }
  .verdict.danger { background: #fee2e2 !important; color: #991b1b !important; border-color: #fca5a5 !important; }

  /* Ausn-Bar für Druck */
  .ausn-bar { background: #e2e8f0 !important; }

  /* Tabelle */
  .vtable th { background: #f1f5f9 !important; color: #334155 !important; border-color: #94a3b8 !important; }
  .vtable td { color: #0f172a !important; border-color: #e2e8f0 !important; }
  .row-rec td { background: #f0fdf4 !important; }
  .row-bad td { opacity: 0.5; }

  /* Info Box */
  .info-box {
    background: #f0f9ff !important;
    border-color: #38bdf8 !important;
  }
  .info-kv span { color: #475569 !important; }
  .info-kv strong { color: #0f172a !important; }

  /* Drawings: beide Panes sichtbar machen */
  .drawing-pane.hidden {
    display: flex !important;
  }

  .drawing-area {
    background: #f0f4f8 !important;
    border-color: #cbd5e1 !important;
    min-height: auto !important;
  }

  /* SVG Elemente für hellen Druck umfärben */
  .wood-board   { fill: #c8a06a !important; stroke: #8B6233 !important; }
  .wood-grain   { stroke: #a07840 !important; }
  .screw-body   { fill: #607080 !important; }
  .pilot-hole   { fill: #b0c8e0 !important; }
  .dim-line     { stroke: #0066aa !important; }
  .dim-text     { fill: #0044aa !important; }
  .sep-line     { stroke: #6688aa !important; }

  /* Order/Bestellliste */
  .order-cols { display: grid !important; grid-template-columns: 1fr 1fr 1fr !important; }
  .order-row { border-color: #e2e8f0 !important; }
  .order-row span { color: #475569 !important; }
  .order-row strong { color: #0f172a !important; }
  .order-row.hl strong { color: #92400e !important; }
  .order-sub { color: #0369a1 !important; }

  /* Montage / QA */
  .montage-list li { color: #374151 !important; }
  .montage-list li::before { background: #dbeafe !important; color: #1d4ed8 !important; }
  .qa-list li { color: #374151 !important; }
  .qa-list li::before { color: #16a34a !important; }

  /* Accordion: alle öffnen */
  .accordion-body {
    display: block !important;
  }
  .accordion-btn {
    background: #f1f5f9 !important;
    color: #0f172a !important;
  }
  .accordion-body {
    background: #fff !important;
    color: #374151 !important;
    border-color: #e2e8f0 !important;
  }
  .accordion-body th { background: #f1f5f9 !important; color: #334155 !important; }
  .accordion-body td { color: #374151 !important; border-color: #e2e8f0 !important; }

  /* Footer */
  .site-footer {
    background: #f8fafc !important;
    border-color: #e2e8f0 !important;
  }
  .site-footer span { color: #64748b !important; }

  /* Seitenränder & Seitenumbrüche */
  @page {
    size: A4 portrait;
    margin: 15mm 12mm 15mm 12mm;
  }

  .col-full { page-break-before: always; break-before: page; }
  .card--drawing { page-break-before: auto; break-before: auto; }
  .drawing-pane svg { max-width: 100% !important; height: auto !important; }

  /* Druckkopf (Zeitstempel, wird per JS hinzugefügt) */
  .print-stamp {
    display: block !important;
    text-align: right;
    font-size: 8pt;
    color: #94a3b8;
    padding: 6pt 0 2pt;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 10pt;
  }
}

/* ═══════════════════════════════════════════════════════════
   HELL-MODUS  ·  body.light-mode
   ═══════════════════════════════════════════════════════════ */
body.light-mode {
  --bg:         #f0f4f8;
  --bg2:        #e8edf5;
  --bg3:        #dde4ef;
  --surface:    #ffffff;
  --surface2:   #f8fafc;
  --surface3:   #eef2f7;

  --border:     #d1dae8;
  --border2:    #b8c5d8;
  --border3:    #9aaec8;

  --text:       #1a2535;
  --text-muted: #4a6080;
  --text-dim:   #8a9fba;

  --cyan:       #0070a0;
  --cyan-dim:   rgba(0,112,160,0.10);
  --cyan-glow:  rgba(0,112,160,0.06);
  --gold:       #92600a;
  --gold-dim:   rgba(146,96,10,0.10);
  --ok:         #1a7a40;
  --ok-dim:     rgba(26,122,64,0.10);
  --warn:       #a06010;
  --danger:     #c02030;

  --grid-line:  rgba(0,80,160,0.07);

  background: var(--bg);
  color: var(--text);
}

body.light-mode .grid-bg {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px),
    linear-gradient(rgba(0,80,160,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,80,160,0.03) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px, 20px 20px, 20px 20px;
}

body.light-mode .header {
  background: linear-gradient(180deg, #1a2a4a 0%, #243555 100%);
}

body.light-mode .header-warn {
  background: rgba(192,32,48,0.07);
  border-top-color: rgba(192,32,48,0.2);
}

body.light-mode input[type="number"],
body.light-mode input[type="text"],
body.light-mode input[type="date"],
body.light-mode select {
  background: #ffffff;
  border-color: var(--border2);
  color: var(--text);
}

body.light-mode select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 5 5-5' stroke='%234a6080' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
}

body.light-mode .drawing-area {
  background: #e8edf5;
  border-color: var(--border2);
}

body.light-mode .dim-line  { stroke: rgba(0,80,160,0.55); }
body.light-mode .dim-text  { fill: #0055aa; }
body.light-mode .wood-board { fill: #c09050; stroke: #7a5830; }
body.light-mode .wood-grain { stroke: #9a7040; }
body.light-mode .screw-body { fill: #5a6878; stroke: #3a4858; }
body.light-mode .screw-head { fill: #7090a8; stroke: #4a6070; }
body.light-mode .pilot-hole { fill: #c8d8e8; stroke: rgba(0,80,160,0.4); }
body.light-mode .sink-cone  { fill: #c0a878; stroke: #9a8050; }
body.light-mode .sep-line   { stroke: rgba(80,100,140,0.4); }
body.light-mode .thread-line { stroke: #788898; }
body.light-mode .countersink-ring { stroke: rgba(0,80,160,0.3); }
body.light-mode .fiber-arrow { stroke: #8B6233; fill: #8B6233; }
body.light-mode .row-guide  { stroke: rgba(146,96,10,0.35); }
body.light-mode .row-guide2 { stroke: rgba(0,80,160,0.2); }

body.light-mode .vtable th {
  background: var(--surface3);
  color: var(--text-muted);
  border-color: var(--border2);
}
body.light-mode .vtable td {
  color: var(--text);
  border-color: var(--border);
}
body.light-mode .vtable tbody tr:hover td { background: var(--surface3); }

body.light-mode .accordion-body {
  background: var(--surface);
  color: var(--text-muted);
  border-top-color: var(--border);
}
body.light-mode .accordion-btn {
  background: var(--surface3);
  color: var(--text);
}
body.light-mode .accordion-body th { background: var(--surface3); color: var(--text-muted); }
body.light-mode .accordion-body td { color: var(--text); border-color: var(--border); }

/* print-stamp normalerweise unsichtbar */
.print-stamp { display: none; }

/* Logo  */
.logo {
  border-radius: 10px;
  opacity: 1;
  border: rgba(255, 174, 0, 0.293) 4px double;
  background-clip: border-box;
  filter: drop-shadow(rgb(255, 204, 0) 0px 10px 50px);
  width: 64px;
  height: 60px;
  flex-shrink: 0;
}

.logotxt {
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  white-space: nowrap;
  color: var(--text-muted);
  transition: all 0.3s ease;
  align-self: flex-end;
  margin-bottom: 4px;
}
.logotxt:hover {
  color: var(--cyan);
  text-shadow: 0 0 8px rgba(0, 200, 224, 0.7);
}
/* ═══════════════════════════════════════════════════════════
   NEUE ERWEITERUNGEN
   ═══════════════════════════════════════════════════════════ */

/* ── AUFTRAGS-CARD ────────────────────────────────────── */
.card--auftrag {
  background: linear-gradient(135deg, var(--surface) 0%, rgba(0,200,224,0.04) 100%);
  border-bottom: 2px solid var(--border2);
}
.card--auftrag .card-title { border-bottom-color: var(--cyan); }
.card--auftrag .step { background: rgba(232,184,75,0.15); color: var(--gold); border: 1px solid rgba(232,184,75,0.3); }
.card--auftrag input { font-size: 13px; }

/* ── CUSTOM HOLZ FIELDS ────────────────────────────────── */
.custom-wood-fields {
  margin-top: 10px;
  padding: 12px 14px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-left: 3px solid var(--gold);
  border-radius: var(--r2);
  animation: fadeIn 0.25s ease;
}

/* ── WARN-BANNER ────────────────────────────────────────── */
.warn-banner {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 9px 13px;
  border-radius: var(--r);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.5;
  margin-top: 8px;
  border: 1px solid;
  animation: fadeIn 0.2s ease;
}
.warn-banner--danger {
  background: rgba(241,84,94,0.10);
  border-color: rgba(241,84,94,0.35);
  color: var(--danger);
}
.warn-banner--warn {
  background: rgba(245,158,11,0.10);
  border-color: rgba(245,158,11,0.35);
  color: var(--warn);
}
.warn-banner--ok {
  background: rgba(61,214,140,0.08);
  border-color: rgba(61,214,140,0.3);
  color: var(--ok);
}
.warn-banner--info {
  background: rgba(0,200,224,0.07);
  border-color: rgba(0,200,224,0.25);
  color: var(--cyan);
}

/* ── BESTELLFORMULAR SECTION ─────────────────────────── */
.card--bestell {
  background: var(--surface2);
  border-top: 2px solid var(--gold);
}
.card--bestell .card-title { color: var(--gold); border-bottom-color: rgba(232,184,75,0.3); }
.card--bestell .step { background: rgba(232,184,75,0.12); color: var(--gold); }

.bestell-auftragsnr-badge {
  font-family: var(--mono);
  font-size: 10px;
  background: rgba(232,184,75,0.15);
  color: var(--gold);
  border: 1px solid rgba(232,184,75,0.35);
  padding: 2px 10px;
  border-radius: 99px;
  letter-spacing: 0.06em;
  margin-left: 10px;
}

.bestell-header-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}
@media (max-width: 960px) { .bestell-header-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 640px) { .bestell-header-grid { grid-template-columns: 1fr; } }

.bestell-block {
  background: var(--surface3);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 14px 16px;
}

.bestell-block-title {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}

.bestell-table { margin-top: 8px; }
.bestell-table td { font-size: 12px; }
.bestell-table td:nth-child(3) { color: var(--gold); font-weight: 700; font-size: 14px; font-family: var(--mono); }

.bestell-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* Auftragsnummer Input hervorheben */
#inp-auftragsnr {
  border-color: rgba(232,184,75,0.4);
  font-weight: 600;
  letter-spacing: 0.04em;
}
#inp-auftragsnr:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-dim);
}

/* Print: Bestellformular-Sektion hervorheben */
@media print {
  .card--bestell { background: #fffbf0 !important; border-top: 3px solid #b45309 !important; }
  .warn-banner { display: flex !important; border: 1px solid #f59e0b !important; }
  .warn-banner--danger { background: #fee2e2 !important; color: #991b1b !important; }
  .warn-banner--ok { background: #dcfce7 !important; color: #166534 !important; }
  .bestell-block { background: #f8fafc !important; border-color: #cbd5e1 !important; }
  .bestell-table td:nth-child(3) { color: #92400e !important; }
  .custom-wood-fields { display: none; }
}

/* Textbereich */
textarea {
  background: var(--bg);
  border: 1px solid var(--border2);
  border-radius: var(--r);
  color: var(--text);
  font-family: var(--mono);
  font-size: 12px;
  padding: 8px 12px;
  width: 100%;
  resize: vertical;
  line-height: 1.5;
  transition: border-color 0.15s, box-shadow 0.15s;
}
textarea:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px var(--cyan-dim);
}
body.light-mode textarea {
  background: #ffffff;
  border-color: var(--border2);
  color: var(--text);
}

/* ── Geometrie-Skizze ─────────────────────────────────────── */
.geom-hint {
  background: var(--surface2);
  border: 1px solid var(--border1);
  border-radius: var(--r);
  padding: 10px 8px 6px;
  margin-bottom: 12px;
}
.field-tip {
  display: inline-block;
  color: var(--cyan);
  font-size: 11px;
  cursor: help;
  margin-left: 3px;
  opacity: 0.8;
}
/* Empfohlene Länge fett hervorheben */
#r-lschr-emp {
  color: var(--cyan);
  font-weight: 700;
}

/* ── Durchmesser-Vergleichstabelle ───────────────────────────── */
.norm-block--screw { grid-column: span 1; }

.diam-manual-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
  cursor: default;
}
.dc-head {
  font-size: 10px;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin: 8px 0 4px;
  border-top: 1px solid var(--border1);
  padding-top: 6px;
}
.diam-compare { display: flex; flex-direction: column; gap: 3px; }
.dc-row {
  display: grid;
  grid-template-columns: 70px 52px 46px 1fr;
  gap: 4px;
  align-items: center;
  font-size: 11px;
  font-family: var(--mono);
  padding: 3px 6px;
  border-radius: 4px;
  background: var(--surface2);
  border: 1px solid transparent;
  color: var(--text-dim);
  transition: background .15s;
}
.dc-row--active {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  color: var(--text);
  font-weight: 600;
}
.dc-d  { color: var(--text); }
.dc-ok   { color: #3dd68c; }
.dc-warn { color: #f59e0b; }
.dc-err  { color: #f1545e; }
.dc-fvrd { color: var(--text-dim); text-align: right; }

/* ── MOBILE ZUSÄTZE ──────────────────────────────────── */

/* Verhindert iOS-Doppel-Tap-Zoom auf Buttons */
button, input, select, textarea { touch-action: manipulation; }

/* Sanftes Scrollen auf iOS */
.table-wrap, .toolbar { -webkit-overflow-scrolling: touch; }

/* Scrollbare Tabellen auf Mobile besser kenntlich */
@media (max-width: 640px) {
  .table-wrap::after {
    content: '→ scrollen';
    display: block;
    text-align: right;
    font-family: var(--mono);
    font-size: 9px;
    color: var(--text-dim);
    padding: 4px 2px 0;
  }
  /* vtable: min Spaltenbreite damit scrollen Sinn macht */
  .vtable { min-width: 520px; }

  /* Info-Box stackt besser */
  .info-kv { flex-wrap: wrap; gap: 2px; }

  /* Norm-block beim Schraubenblock: diam-compare kompakter */
  .dc-row { grid-template-columns: 56px 44px 40px 1fr; font-size: 10px; }

  /* result-value nicht zu groß */
  .result-big .result-value { font-size: 22px; }

  /* Bestellformular Tabelle */
  .bestell-table { min-width: 480px; }

  /* geom-hint SVG volle Breite */
  .geom-hint svg { max-width: 100% !important; }

  /* Zeichnungs-SVG: kein overflow clip */
  .drawing-pane { padding: 8px; }
  .drawing-pane svg { max-width: 100%; height: auto; }
}

/* Sticky Toolbar auf kleinen Screens für bessere Erreichbarkeit */
@media (max-width: 640px) {
  .toolbar {
    position: sticky;
    bottom: 0;
    background: var(--surface);
    border-top: 1px solid var(--border2);
    padding: 8px 16px;
    margin-top: 0;
    z-index: 100;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.3);
  }
}

/* Licht-Modus: sticky toolbar */
@media (max-width: 640px) {
  body.light-mode .toolbar {
    background: var(--surface);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.08);
  }
}