/* EPD+ Kalkulator Beton Towarowy — v1.0.0
   Scoped under .beton-epd-kalkulator to avoid theme conflicts */

/* Demo mode pulse animation */
@keyframes pulse-demo {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* ── CSS VARIABLES ── */
.beton-epd-kalkulator {
  --hbg:#0F172A; --htxt:#F8FAFC; --primary:#1E293B; --accent:#1E40AF; --accent-h:#1E3A5F;
  --bg:#F1F5F9; --card:#FFFFFF; --border:#E2E8F0; --bh:#CBD5E1;
  --text:#1E293B; --ts:#475569; --tm:#64748B;
  --sh:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
  --r:10px; --rs:6px;
}

/* ── RESET (scoped) ── */
.beton-epd-kalkulator,
.beton-epd-kalkulator *,
.beton-epd-kalkulator *::before,
.beton-epd-kalkulator *::after {
  box-sizing: border-box;
}
.beton-epd-kalkulator * {
  margin: 0;
  padding: 0;
}

/* ── ROOT ELEMENT ── */
.beton-epd-kalkulator {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}

/* ── HEADER ── */
.beton-epd-kalkulator .app-header {
  background: var(--hbg);
  color: var(--htxt);
  padding: 13px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
  gap: 16px;
  z-index: 100;
}
.beton-epd-kalkulator .logo {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.4px;
  white-space: nowrap;
}
.beton-epd-kalkulator .logo span { color: var(--accent); }
.beton-epd-kalkulator .hbadges { display: flex; gap: 6px; flex-wrap: wrap; }
.beton-epd-kalkulator .badge {
  padding: 4px 10px;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  border-radius: var(--rs);
  font-size: 10px;
  font-weight: 500;
}
.beton-epd-kalkulator .badge.acc {
  background: transparent;
  border-color: var(--accent);
  color: var(--accent);
}

/* ── LAYOUT ── */
.beton-epd-kalkulator .app-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  flex: 1;
  overflow: hidden;
  min-height: 0;
}
.beton-epd-kalkulator .sidebar {
  background: var(--card);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}
.beton-epd-kalkulator .main-content {
  padding: 20px 24px;
  background: var(--bg);
  overflow-y: auto;
}

/* ── SECTIONS ── */
.beton-epd-kalkulator .ss {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
}
/* Unified section border — professional monochrome */
.beton-epd-kalkulator .ss[data-m="a1"],
.beton-epd-kalkulator .ss[data-m="a2"],
.beton-epd-kalkulator .ss[data-m="a3"],
.beton-epd-kalkulator .ss[data-m="a4"],
.beton-epd-kalkulator .ss[data-m="c"],
.beton-epd-kalkulator .ss[data-m="d"],
.beton-epd-kalkulator .ss[data-m="decl"],
.beton-epd-kalkulator .ss[data-m="dpp"] { border-left: 3px solid #CBD5E1; }
.beton-epd-kalkulator .ss[data-m="a1"] { border-left-color: #1E293B; }
.beton-epd-kalkulator .ss h3 {
  font-size: 10px;
  font-weight: 600;
  color: var(--ts);
  text-transform: uppercase;
  letter-spacing: .5px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
}
.beton-epd-kalkulator .ss h3::after {
  content: '';
  margin-left: auto;
  border: 4px solid transparent;
  border-top: 5px solid var(--tm);
  transition: transform .2s;
}
.beton-epd-kalkulator .ss.col h3::after { transform: rotate(-90deg); }
.beton-epd-kalkulator .sc {
  overflow: hidden;
  max-height: 3000px;
  opacity: 1;
  transition: max-height .3s ease, opacity .25s ease;
}
.beton-epd-kalkulator .ss.col .sc { max-height: 0; opacity: 0; }

/* ── MODULE TAGS ── */
.beton-epd-kalkulator .mt {
  padding: 2px 7px;
  border-radius: 3px;
  font-size: 9px;
  font-weight: 600;
  text-transform: uppercase;
  background: var(--bg);
  color: var(--ts);
  border: 1px solid var(--border);
}
.beton-epd-kalkulator .mt.a { background: #EFF6FF; color: #1E40AF; border-color: #93C5FD; }
.beton-epd-kalkulator .mt.b { background: #FEF3C7; color: #92400E; border-color: #FCD34D; }
.beton-epd-kalkulator .mt.c { background: #FEE2E2; color: #991B1B; border-color: #FCA5A5; }
.beton-epd-kalkulator .mt.d { background: #DCFCE7; color: #166534; border-color: #86EFAC; }

/* ── FORMS ── */
.beton-epd-kalkulator .fg { display: flex; flex-direction: column; gap: 3px; }
.beton-epd-kalkulator .fg.full { grid-column: 1/-1; }
.beton-epd-kalkulator .fl { font-size: 11px; font-weight: 500; color: var(--ts); }
.beton-epd-kalkulator .fi,
.beton-epd-kalkulator .fse {
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: var(--rs);
  font-size: 13px;
  background: var(--card);
  color: var(--text);
  transition: border .15s;
  font-family: inherit;
  width: 100%;
}
.beton-epd-kalkulator .fi:focus,
.beton-epd-kalkulator .fse:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(16,185,129,.1);
}
.beton-epd-kalkulator .fse {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}
.beton-epd-kalkulator .fh { font-size: 10px; color: var(--tm); margin-top: 1px; }
.beton-epd-kalkulator .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.beton-epd-kalkulator .grid3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.beton-epd-kalkulator .grid4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 8px; }

/* ── CLASS CARDS ── */
.beton-epd-kalkulator .class-cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  margin-bottom: 12px;
}
.beton-epd-kalkulator .cc {
  padding: 9px 4px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--rs);
  text-align: center;
  cursor: pointer;
  transition: all .15s;
}
.beton-epd-kalkulator .cc:hover { border-color: var(--bh); }
.beton-epd-kalkulator .cc.act { background: var(--primary); border-color: var(--primary); }
.beton-epd-kalkulator .cc-code { font-size: 12px; font-weight: 700; color: var(--text); }
.beton-epd-kalkulator .cc.act .cc-code { color: #fff; }
.beton-epd-kalkulator .cc-ref { font-size: 9px; color: var(--tm); margin-top: 1px; }
.beton-epd-kalkulator .cc.act .cc-ref { color: rgba(255,255,255,.6); }

/* ── INFO BOX ── */
.beton-epd-kalkulator .ib {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--rs);
  padding: 9px 11px;
  font-size: 11px;
  color: var(--ts);
  margin-top: 8px;
}
.beton-epd-kalkulator .ib.warn { background: #FFFBEB; border-color: #FCD34D; color: #92400E; }
.beton-epd-kalkulator .ib.info { background: #EFF6FF; border-color: #93C5FD; color: #1E40AF; }

/* ── DENSITY ROW ── */
.beton-epd-kalkulator .dr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border-radius: var(--rs);
  padding: 7px 11px;
  margin-top: 8px;
  font-size: 11px;
  color: var(--tm);
}
.beton-epd-kalkulator .dr-val { font-weight: 700; color: var(--text); font-size: 15px; }
.beton-epd-kalkulator .dr-wc { font-size: 11px; color: var(--ts); }

/* ── GWP HERO ── */
.beton-epd-kalkulator .gwp-hero {
  background: var(--primary);
  color: #fff;
  border-radius: var(--r);
  padding: 18px 22px;
  margin-bottom: 14px;
}
.beton-epd-kalkulator .gwp-row1 { display: flex; justify-content: space-between; align-items: flex-start; }
.beton-epd-kalkulator .gwp-lbl { font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .5px; opacity: .6; margin-bottom: 4px; }
.beton-epd-kalkulator .gwp-val { font-size: 52px; font-weight: 800; font-variant-numeric: tabular-nums; line-height: 1; letter-spacing: -2px; }
.beton-epd-kalkulator .gwp-unit { font-size: 13px; opacity: .6; margin-top: 3px; }
.beton-epd-kalkulator .gwp-ecv-badge { padding: 8px 16px; border-radius: 8px; font-size: 13px; font-weight: 700; text-align: center; }
.beton-epd-kalkulator .gwp-mods {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(255,255,255,.15);
}
.beton-epd-kalkulator .gm { text-align: center; }
.beton-epd-kalkulator .gm-v { font-size: 18px; font-weight: 700; font-variant-numeric: tabular-nums; }
.beton-epd-kalkulator .gm-l { font-size: 9px; font-weight: 600; text-transform: uppercase; opacity: .55; margin-top: 2px; }
.beton-epd-kalkulator .gm-l.d { color: var(--accent); opacity: 1; }
.beton-epd-kalkulator .gwp-net-row {
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid rgba(255,255,255,.15);
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.beton-epd-kalkulator .gwp-net-val { font-size: 26px; font-weight: 700; font-variant-numeric: tabular-nums; }
.beton-epd-kalkulator .gwp-net-lbl { font-size: 11px; opacity: .6; }

/* ── ECV PANEL ── */
.beton-epd-kalkulator .ecv-panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px 20px;
  margin-bottom: 14px;
}
.beton-epd-kalkulator .ecv-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.beton-epd-kalkulator .ecv-title { font-size: 13px; font-weight: 600; }
.beton-epd-kalkulator .ecv-bands { display: grid; gap: 5px; }
.beton-epd-kalkulator .ecvb {
  display: grid;
  grid-template-columns: 38px 110px 1fr 90px;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: var(--rs);
  border: 1px solid transparent;
  font-size: 12px;
  transition: all .15s;
}
.beton-epd-kalkulator .ecvb.active { border-width: 2px; box-shadow: 0 2px 8px rgba(0,0,0,.12); }
.beton-epd-kalkulator .ecvb-name { font-weight: 700; font-size: 14px; }
.beton-epd-kalkulator .ecvb-info { font-size: 11px; opacity: .8; }
.beton-epd-kalkulator .ecvb-bar { background: rgba(0,0,0,.15); border-radius: 3px; height: 6px; overflow: hidden; }
.beton-epd-kalkulator .ecvb-fill { height: 100%; border-radius: 3px; transition: width .5s ease; }
.beton-epd-kalkulator .ecvb-val { text-align: right; font-weight: 600; font-variant-numeric: tabular-nums; font-size: 12px; }

/* ECV bands — professional monochrome with subtle accent */
.beton-epd-kalkulator .baa { background: #1E293B; color: #fff; }
.beton-epd-kalkulator .ba  { background: #334155; color: #fff; }
.beton-epd-kalkulator .bb  { background: #475569; color: #fff; }
.beton-epd-kalkulator .bc  { background: #64748B; color: #fff; }
.beton-epd-kalkulator .bd  { background: #94A3B8; color: #fff; }
.beton-epd-kalkulator .be  { background: #CBD5E1; color: #1E293B; }
.beton-epd-kalkulator .bf  { background: #E2E8F0; color: #475569; }
.beton-epd-kalkulator .bg  { background: #F1F5F9; color: #64748B; border: 1px solid #CBD5E1; }

/* ── RESULTS PANEL ── */
.beton-epd-kalkulator .rp {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px 20px;
  margin-bottom: 14px;
}
.beton-epd-kalkulator .rh {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}
.beton-epd-kalkulator .rt { font-size: 13px; font-weight: 600; }
.beton-epd-kalkulator .rcards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}
.beton-epd-kalkulator .rcard {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--rs);
  padding: 11px;
  text-align: center;
}
.beton-epd-kalkulator .rcard.hl { border-color: var(--primary); background: #F8FAFC; }
.beton-epd-kalkulator .rl { font-size: 9px; font-weight: 600; text-transform: uppercase; color: var(--tm); letter-spacing: .3px; margin-bottom: 3px; }
.beton-epd-kalkulator .rv { font-size: 17px; font-weight: 700; font-variant-numeric: tabular-nums; }
.beton-epd-kalkulator .rv.g { color: #059669; }
.beton-epd-kalkulator .ru { font-size: 9px; color: var(--tm); margin-top: 1px; }

/* ── TABLE ── */
.beton-epd-kalkulator .mt2 { width: 100%; border-collapse: collapse; font-size: 12px; }
.beton-epd-kalkulator .mt2 th {
  background: var(--bg);
  font-weight: 600;
  padding: 8px 11px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  color: var(--ts);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .3px;
}
.beton-epd-kalkulator .mt2 td { padding: 8px 11px; border-bottom: 1px solid var(--border); }
.beton-epd-kalkulator .mt2 tr:last-child td { border-bottom: none; }
.beton-epd-kalkulator .mt2 tr:hover td { background: var(--bg); }
.beton-epd-kalkulator .mt2 .n { text-align: right; font-variant-numeric: tabular-nums; font-weight: 500; }
.beton-epd-kalkulator .mt2 .tot { font-weight: 700; }
.beton-epd-kalkulator .mt2 .rowtot td { background: var(--bg); font-weight: 700; }
.beton-epd-kalkulator .mt2 .rowhl td { background: #F0FDF4; color: #065F46; font-weight: 600; }

/* ── CHART ── */
.beton-epd-kalkulator .chartrow { display: flex; align-items: center; gap: 8px; margin-bottom: 7px; font-size: 12px; }
.beton-epd-kalkulator .crl { width: 60px; text-align: right; font-weight: 600; color: var(--ts); font-size: 11px; }
.beton-epd-kalkulator .crw { flex: 1; background: #E2E8F0; border-radius: 3px; height: 18px; overflow: hidden; }
.beton-epd-kalkulator .crb {
  height: 100%;
  border-radius: 3px;
  transition: width .5s;
  display: flex;
  align-items: center;
  padding: 0 7px;
  font-size: 10px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
}
.beton-epd-kalkulator .crv { width: 60px; text-align: left; font-variant-numeric: tabular-nums; font-weight: 600; font-size: 11px; }

/* ── BUTTONS ── */
.beton-epd-kalkulator .btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: var(--rs);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  background: var(--card);
  color: var(--text);
  font-family: inherit;
}
.beton-epd-kalkulator .btn:hover { border-color: var(--bh); background: var(--bg); }
.beton-epd-kalkulator .btn-p { background: var(--accent); border-color: var(--accent); color: #fff; }
.beton-epd-kalkulator .btn-p:hover { background: var(--accent-h); }
.beton-epd-kalkulator .abtns { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }

/* ── EPD OUTPUT ── */
.beton-epd-kalkulator #epd-out {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  margin-top: 14px;
  overflow: hidden;
}
.beton-epd-kalkulator #epd-out:empty { display: none; }
.beton-epd-kalkulator .epd-doc { padding: 0; font-size: 12px; line-height: 1.8; color: #1E293B; max-width: none; }
.beton-epd-kalkulator .epd-doc h1 { font-size: 20px; font-weight: 800; margin-bottom: 6px; }
.beton-epd-kalkulator .epd-doc h2 { font-size: 14px; font-weight: 700; margin: 18px 0 7px; padding-bottom: 5px; border-bottom: 2px solid var(--border); }
.beton-epd-kalkulator .epd-doc .epd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 10px; }
.beton-epd-kalkulator .epd-doc .ef-l { font-size: 10px; font-weight: 600; text-transform: uppercase; color: var(--tm); }
.beton-epd-kalkulator .epd-doc .ef-v { font-weight: 600; }

/* ── SECTION NAV ── */
.beton-epd-kalkulator .snav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 6px 12px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: thin;
}
.beton-epd-kalkulator .snl {
  padding: 4px 9px;
  font-size: 10px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: var(--card);
  color: var(--ts);
  cursor: pointer;
  white-space: nowrap;
  transition: all .15s;
}
.beton-epd-kalkulator .snl:hover { background: var(--bg); }
.beton-epd-kalkulator .snl.act { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ── MISC ── */
.beton-epd-kalkulator .sep { height: 1px; background: var(--border); margin: 10px 0; }
.beton-epd-kalkulator .subsec-lbl {
  font-size: 10px;
  font-weight: 700;
  color: var(--ts);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin: 10px 0 7px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.beton-epd-kalkulator .subsec-lbl::before {
  content: '';
  display: block;
  width: 3px;
  height: 12px;
  background: var(--accent);
  border-radius: 2px;
}
.beton-epd-kalkulator .kobize-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 5px;
  padding: 6px 10px;
  background: var(--bg);
  border-radius: var(--rs);
  font-size: 11px;
  color: var(--ts);
}
.beton-epd-kalkulator .kobize-badge {
  background: var(--primary);
  color: #fff;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 700;
}
.beton-epd-kalkulator .src-note { font-size: 10px; color: var(--tm); margin-top: 6px; font-style: italic; }

/* ── TOAST ── */
.beton-epd-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 10px 18px;
  background: #1E293B;
  color: #fff;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  z-index: 9999;
  animation: beton-epd-fadein .2s ease;
}
@keyframes beton-epd-fadein {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .beton-epd-kalkulator .app-layout {
    grid-template-columns: 1fr;
    overflow: visible;
  }
  .beton-epd-kalkulator .sidebar,
  .beton-epd-kalkulator .main-content {
    overflow: visible;
  }
  .beton-epd-kalkulator .gwp-val { font-size: 38px; }
  .beton-epd-kalkulator { height: auto !important; overflow: visible !important; }
}