:root {
  /* EnerView palette: green = sustainability, dark blue = engineering and trust */
  --ev-navy: #13324D;
  --ev-navy-2: #1E4A6E;
  --ev-blue: #1E6E8C;
  --ev-green: #2E9441;
  --ev-green-2: #62AA35;
  --fervo-green: #2E9441;
  --fervo-lime: #62AA35;
  --fervo-teal: #1E6E8C;
  --fervo-deep: #13324D;
  --fervo-graphite: #13324D;
  --bg: #f4f7f8;
  --surface: rgba(255, 255, 255, .88);
  --surface-solid: #ffffff;
  --ink: #1b2a36;
  --muted: #627180;
  --line: rgba(81, 85, 81, .14);
  --line-strong: rgba(81, 85, 81, .24);
  --success-soft: rgba(46, 148, 65, .16);
  --teal-soft: rgba(30, 110, 140, .14);
  --lime-soft: rgba(98, 170, 53, .18);
  --danger: #ba2f2f;
  --warning: #fff9d8;
  --formula: #f4f7f6;
  --shadow: 0 24px 60px rgba(19, 50, 77, .13);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --font: "Poppins", "Gotham", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 4%, rgba(98, 170, 53, .22) 0, transparent 31rem),
    radial-gradient(circle at 96% 0%, rgba(30, 110, 140, .15) 0, transparent 28rem),
    linear-gradient(135deg, #f9fbf8 0%, var(--bg) 55%, #eef7ef 100%);
  font-family: var(--font);
}

button, input, select, textarea { font: inherit; }
button { color: inherit; }

.ambient {
  position: fixed;
  pointer-events: none;
  z-index: 0;
  border-radius: 999px;
  filter: blur(4px);
}
.ambient-one {
  width: 34rem;
  height: 34rem;
  right: -16rem;
  top: 14rem;
  background: rgba(19, 50, 77, .08);
}
.ambient-two {
  width: 21rem;
  height: 21rem;
  left: 18rem;
  bottom: -12rem;
  background: rgba(98, 170, 53, .14);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
  gap: clamp(1rem, 2vw, 1.4rem);
  width: min(1820px, 100%);
  margin: 0 auto;
  padding: clamp(1rem, 2.2vw, 1.7rem);
}

.side-panel {
  position: sticky;
  top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: calc(100vh - 2rem);
  padding: 1rem;
  background: rgba(255, 255, 255, .74);
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(22px);
}

.brand-card {
  display: grid;
  grid-template-columns: 86px 1fr;
  align-items: center;
  gap: .8rem;
  padding: .8rem;
  background: linear-gradient(145deg, #ffffff 0%, #f5faf6 100%);
  border: 1px solid var(--line);
  border-radius: 24px;
}
.brand-logo {
  display: block;
  width: 82px;
  height: auto;
}
.eyebrow {
  margin: 0 0 .35rem;
  color: var(--fervo-deep);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}
.brand-card h1 {
  margin: 0;
  color: var(--fervo-graphite);
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  line-height: 1.1;
}

.main-nav {
  display: grid;
  gap: .65rem;
  margin-top: .3rem;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  width: 100%;
  padding: .86rem .85rem;
  border: 1px solid transparent;
  border-radius: 18px;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: transform .18s ease, background .18s ease, border-color .18s ease, color .18s ease;
}
.nav-item:hover { transform: translateX(2px); background: rgba(30, 110, 140, .07); }
.nav-item.active {
  color: #ffffff;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
  border-color: rgba(30, 110, 140, .22);
  box-shadow: 0 14px 30px rgba(19, 50, 77, .22);
}
.nav-icon {
  display: inline-grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 12px;
  background: rgba(255,255,255,.76);
  color: var(--fervo-deep);
  font-size: .78rem;
  font-weight: 900;
}
.nav-item.active .nav-icon { background: rgba(255,255,255,.92); }

.save-card {
  margin-top: auto;
  padding: 1rem;
  border-radius: 22px;
  background: linear-gradient(145deg, rgba(98, 170, 53, .16), rgba(46, 148, 65, .12));
  border: 1px solid rgba(46, 148, 65, .24);
}
.save-card p { margin: .65rem 0 0; color: var(--muted); font-size: .82rem; line-height: 1.4; }
.status-dot {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: var(--fervo-deep);
  font-weight: 800;
}
.status-dot::before {
  content: "";
  width: .55rem;
  height: .55rem;
  border-radius: 999px;
  background: var(--fervo-lime);
  box-shadow: 0 0 0 5px rgba(98, 170, 53, .18);
}

.content-area {
  display: grid;
  gap: 1rem;
  min-width: 0;
}
.hero-panel,
.panel,
.tool-strip,
.solution-card,
.catalog-section,
.totals-panel,
.sheet-wrap,
.matrix-toolbar {
  border: 1px solid rgba(255,255,255,.78);
  border-radius: var(--radius-xl);
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.hero-panel {
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1.2rem;
  overflow: hidden;
  padding: clamp(1.2rem, 2vw, 1.8rem);
  min-height: 205px;
}
.hero-panel::before {
  content: "";
  position: absolute;
  right: -5.5rem;
  top: -6.5rem;
  width: 23rem;
  height: 23rem;
  border-radius: 999px;
  background: linear-gradient(145deg, rgba(30, 110, 140, .18), rgba(19, 50, 77, .26));
}
.hero-panel::after {
  content: "";
  position: absolute;
  left: 2rem;
  bottom: 0;
  width: 14rem;
  height: .34rem;
  border-radius: 999px;
  background: var(--fervo-lime);
}
.hero-copy,
.hero-actions { position: relative; z-index: 1; }
.hero-copy h2 {
  max-width: 900px;
  margin: 0;
  color: var(--fervo-graphite);
  font-size: clamp(1.75rem, 3vw, 3.1rem);
  line-height: .98;
  letter-spacing: -.04em;
}
.hero-copy p:not(.eyebrow) {
  max-width: 830px;
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.55;
}
.hero-actions { display: flex; gap: .7rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 2.7rem;
  padding: .68rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #ffffff;
  color: var(--ink);
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 24px rgba(31, 40, 37, .09); }
.btn.primary {
  color: #ffffff;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
  border-color: transparent;
}
.btn.ghost { background: rgba(255,255,255,.72); }
.btn.danger { color: var(--danger); border-color: rgba(186,47,47,.22); background: rgba(255,255,255,.84); }
.btn.small { min-height: 2.2rem; padding: .48rem .78rem; font-size: .82rem; }
.file-btn { position: relative; overflow: hidden; }
.file-btn input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.top-grid {
  display: grid;
  grid-template-columns: minmax(320px, .78fr) minmax(520px, 1.22fr);
  gap: 1rem;
}
.panel { padding: 1rem; }
.panel-heading {
  margin-bottom: .9rem;
}
.panel-heading.inline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}
.panel h3,
.section-header h3 {
  margin: 0;
  color: var(--fervo-graphite);
  font-size: clamp(1.1rem, 1.5vw, 1.45rem);
  letter-spacing: -.02em;
}
.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1.2rem;
  margin: .35rem 0 1rem;
  padding: 0 .2rem;
}
.section-header p:not(.eyebrow) {
  max-width: 680px;
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}
.field {
  display: grid;
  gap: .38rem;
}
.field.full { grid-column: 1 / -1; }
.field label,
.data-field label {
  color: var(--muted);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .035em;
  text-transform: uppercase;
}
.input,
.select,
.textarea {
  width: 100%;
  min-height: 2.55rem;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: rgba(255,255,255,.86);
  color: var(--ink);
  padding: .65rem .75rem;
  outline: none;
  transition: border-color .16s ease, box-shadow .16s ease, background .16s ease;
}
.textarea { min-height: 5.1rem; resize: vertical; line-height: 1.35; }
.input:focus,
.select:focus,
.textarea:focus {
  border-color: var(--fervo-teal);
  box-shadow: 0 0 0 4px rgba(30,110,140,.12);
  background: #ffffff;
}
.input[disabled], .select[disabled], .textarea[disabled] {
  color: #777f7a;
  background: var(--formula);
  cursor: not-allowed;
}
.input.number { text-align: right; }
.input.edited, .textarea.edited { box-shadow: inset 0 0 0 2px rgba(98, 170, 53, .75); }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .75rem;
}
.kpi-card {
  position: relative;
  overflow: hidden;
  min-height: 7.8rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: linear-gradient(155deg, #ffffff 0%, #f8fbf9 100%);
}
.kpi-card::after {
  content: "";
  position: absolute;
  right: -.8rem;
  top: -.8rem;
  width: 4.7rem;
  height: 4.7rem;
  border-radius: 999px;
  background: var(--teal-soft);
}
.kpi-card.lime::after { background: var(--lime-soft); }
.kpi-card.green::after { background: var(--success-soft); }
.kpi-card .label { color: var(--muted); font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .06em; }
.kpi-card .value { margin-top: .7rem; font-size: clamp(1.25rem, 2vw, 1.75rem); font-weight: 900; letter-spacing: -.03em; }
.kpi-card .note { margin-top: .45rem; color: var(--muted); font-size: .78rem; line-height: 1.35; }

.tool-strip {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: .65rem .8rem;
  padding: .8rem;
  box-shadow: 0 16px 34px rgba(19, 50, 77, .08);
}
.switch-row {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  min-height: 2.35rem;
  padding: .42rem .74rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.7);
  color: var(--fervo-graphite);
  font-size: .86rem;
  font-weight: 760;
}
.switch-row input { accent-color: var(--fervo-deep); }

.view { display: none; }
.view.active { display: block; }
.section-pills {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .9rem;
}
.pill-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  min-height: 2.2rem;
  padding: .42rem .72rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.68);
  color: var(--fervo-graphite);
  font-size: .82rem;
  font-weight: 800;
  cursor: pointer;
}
.pill-link strong { color: var(--fervo-deep); }

.solutions-wrap,
.catalog-wrap,
.totals-wrap {
  display: grid;
  gap: 1rem;
}
.solution-card,
.catalog-section,
.totals-panel { padding: 1rem; }
.solution-head,
.catalog-head,
.totals-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: .9rem;
}
.solution-title {
  display: flex;
  align-items: center;
  gap: .75rem;
}
.solution-badge {
  display: grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 18px;
  color: #ffffff;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
  font-weight: 900;
}
.solution-head h4,
.catalog-head h4,
.totals-head h4 {
  margin: 0;
  color: var(--fervo-graphite);
  font-size: 1.1rem;
}
.solution-head p,
.catalog-head p,
.totals-head p { margin: .25rem 0 0; color: var(--muted); font-size: .86rem; }
.section-totals {
  display: flex;
  align-items: stretch;
  gap: .55rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.total-chip {
  display: grid;
  gap: .2rem;
  min-width: 8.8rem;
  padding: .6rem .75rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255,255,255,.7);
}
.total-chip span { color: var(--muted); font-size: .68rem; font-weight: 850; letter-spacing: .05em; text-transform: uppercase; }
.total-chip strong { font-size: .95rem; }

.line-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: .8rem;
}
.line-card {
  display: grid;
  gap: .75rem;
  padding: .85rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.78)),
    radial-gradient(circle at top right, rgba(98,170,53,.12), transparent 9rem);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.line-card:hover {
  transform: translateY(-2px);
  border-color: rgba(30,110,140,.22);
  box-shadow: 0 18px 38px rgba(19,50,77,.1);
}
.line-card.active-line { border-color: rgba(19,50,77,.34); }
.line-top {
  display: flex;
  justify-content: space-between;
  gap: .7rem;
}
.line-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 12px;
  background: var(--teal-soft);
  color: var(--fervo-deep);
  font-weight: 900;
  font-size: .8rem;
  flex: 0 0 auto;
}
.line-main { min-width: 0; flex: 1; }
.line-label { margin: 0; color: var(--fervo-graphite); font-size: .92rem; font-weight: 850; }
.line-desc { margin: .22rem 0 0; color: var(--muted); font-size: .78rem; line-height: 1.35; }
.line-fields {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, .8fr) minmax(82px, .42fr);
  gap: .55rem;
}
.line-fields.two { grid-template-columns: 1fr 100px; }
.metrics-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: .45rem;
}
.metric {
  min-height: 4rem;
  padding: .55rem;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(244, 247, 246, .68);
}
.metric span { display: block; color: var(--muted); font-size: .66rem; font-weight: 850; text-transform: uppercase; letter-spacing: .04em; }
.metric strong { display: block; margin-top: .28rem; font-size: .93rem; letter-spacing: -.01em; }
.metric.total { background: linear-gradient(135deg, rgba(46,148,65,.16), rgba(98,170,53,.12)); }
.metric.internal { display: none; }
body.show-internal .metric.internal { display: block; }
body.show-internal .metrics-row { grid-template-columns: repeat(5, minmax(0, 1fr)); }

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(335px, 1fr));
  gap: .8rem;
}
.product-card {
  display: grid;
  gap: .8rem;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.78);
}
.product-card .product-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .75rem;
  align-items: start;
}
.product-code {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.4rem;
  height: 2.2rem;
  padding: 0 .55rem;
  border-radius: 12px;
  background: var(--lime-soft);
  color: var(--fervo-deep);
  font-size: .78rem;
  font-weight: 900;
}
.product-sections {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .65rem;
}
.price-box {
  display: grid;
  gap: .52rem;
  padding: .7rem;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(244, 247, 246, .6);
}
.price-box h5 {
  margin: 0;
  color: var(--fervo-graphite);
  font-size: .78rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.product-note { grid-column: 1 / -1; }
.data-field {
  display: grid;
  gap: .3rem;
}
.formula-hint {
  color: var(--muted);
  font-size: .7rem;
  line-height: 1.3;
}
.formula-hint strong { color: var(--fervo-deep); }

.totals-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: .75rem;
}
.breakdown-card {
  display: grid;
  gap: .65rem;
  padding: .9rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.76);
}
.breakdown-card.highlight {
  color: #fff;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
  border-color: transparent;
}
.breakdown-card.highlight .muted,
.breakdown-card.highlight .breakdown-label { color: rgba(255,255,255,.82); }
.breakdown-label { color: var(--muted); font-size: .72rem; font-weight: 850; text-transform: uppercase; letter-spacing: .05em; }
.breakdown-title { margin: 0; font-size: .95rem; font-weight: 850; line-height: 1.28; }
.breakdown-value { font-size: 1.25rem; font-weight: 900; letter-spacing: -.03em; }
.breakdown-meta { display: flex; gap: .45rem; flex-wrap: wrap; }
.breakdown-meta span {
  display: inline-flex;
  padding: .25rem .45rem;
  border-radius: 999px;
  background: rgba(255,255,255,.56);
  color: var(--fervo-graphite);
  font-size: .72rem;
  font-weight: 800;
}
.breakdown-card.highlight .breakdown-meta span { color: #fff; background: rgba(255,255,255,.18); }

.matrix-toolbar {
  display: inline-flex;
  gap: .45rem;
  padding: .45rem;
  margin-bottom: .8rem;
  box-shadow: none;
}
.tab-btn {
  border: 0;
  border-radius: 999px;
  background: transparent;
  padding: .62rem .9rem;
  cursor: pointer;
  font-weight: 850;
}
.tab-btn.active { color: #fff; background: var(--fervo-deep); }
.sheet-wrap {
  overflow: auto;
  max-height: calc(100vh - 15rem);
  padding: .7rem;
}
.excel-table {
  border-collapse: separate;
  border-spacing: 0;
  width: max-content;
  min-width: 100%;
  table-layout: fixed;
  font-size: .8rem;
}
.excel-table th,
.excel-table td {
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  min-height: 2rem;
  height: 2rem;
  padding: .18rem .25rem;
  vertical-align: middle;
  background: #fff;
}
.excel-table thead th {
  position: sticky;
  top: 0;
  z-index: 4;
  background: #ecf3f1;
  color: var(--fervo-graphite);
  text-align: center;
  font-size: .72rem;
  font-weight: 850;
}
.row-header {
  position: sticky;
  left: 0;
  z-index: 3;
  width: 3rem;
  min-width: 3rem;
  background: #ecf3f1 !important;
  color: var(--muted);
  text-align: right;
  font-size: .72rem;
  font-weight: 850;
}
.corner { left: 0; z-index: 5 !important; }
.cell-content { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cell-content.wrap { white-space: normal; line-height: 1.25; }
.excel-table td.header-cell { background: var(--fervo-graphite); color: #fff; font-weight: 850; text-align: center; }
.excel-table td.subheader-cell { background: rgba(46,148,65,.14); color: var(--fervo-graphite); font-weight: 850; }
.excel-table td.section-cell { background: var(--fervo-deep); color: #fff; font-weight: 850; }
.excel-table td.subtotal-cell { background: rgba(30,110,140,.08); font-weight: 850; }
.excel-table td.total-cell { background: rgba(98,170,53,.22); font-weight: 900; }
.excel-table td.formula-cell { background: var(--formula); }
.excel-table td.editable-cell { background: var(--warning); }
.excel-table td.override-cell { box-shadow: inset 0 0 0 2px var(--fervo-lime); }
.excel-table td.blank-cell { background: rgba(255,255,255,.66); }
.excel-table td.internal-col { background-image: repeating-linear-gradient(-45deg, rgba(81,85,81,.06), rgba(81,85,81,.06) 6px, transparent 6px, transparent 12px); }
body:not(.show-internal) .internal-col { display: none !important; }
.cell-input, .cell-select {
  width: 100%;
  height: 1.65rem;
  border: 1px solid transparent;
  border-radius: .45rem;
  background: rgba(255,255,255,.72);
  color: var(--ink);
  padding: .15rem .32rem;
  outline: none;
}
.cell-input:focus, .cell-select:focus { border-color: var(--fervo-teal); box-shadow: 0 0 0 3px rgba(30,110,140,.13); background: #fff; }
.cell-input.number { text-align: right; }
.align-center { text-align: center; }
.align-right { text-align: right; }
.bold { font-weight: 850; }
.percent { text-align: right; }
.error-value { color: var(--danger); font-weight: 850; }

.empty-note {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.4;
}

@media (max-width: 1260px) {
  .app-shell { grid-template-columns: 1fr; }
  .side-panel {
    position: relative;
    top: auto;
    height: auto;
    display: grid;
    grid-template-columns: 1fr;
  }
  .main-nav { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .nav-item { justify-content: center; }
  .save-card { display: none; }
  .top-grid { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .app-shell { padding: .75rem; }
  .side-panel,
  .hero-panel,
  .panel,
  .solution-card,
  .catalog-section,
  .totals-panel { border-radius: 22px; }
  .brand-card { grid-template-columns: 72px 1fr; }
  .brand-logo { width: 68px; }
  .main-nav { grid-template-columns: 1fr; }
  .hero-panel { align-items: flex-start; flex-direction: column; }
  .section-header { align-items: flex-start; flex-direction: column; }
  .form-grid, .kpi-grid, .product-sections, .line-fields, .line-fields.two { grid-template-columns: 1fr; }
  .metrics-row, body.show-internal .metrics-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .line-grid, .catalog-grid { grid-template-columns: 1fr; }
}
@media print {
  body { background: #fff; }
  .ambient, .side-panel, .tool-strip, .hero-actions, .section-pills, .matrix-toolbar { display: none !important; }
  .app-shell { display: block; padding: 0; }
  .hero-panel, .panel, .solution-card, .catalog-section, .totals-panel, .sheet-wrap {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
  }
  .view { display: block !important; }
  #costView, #matrixView { display: none !important; }
}

/* V3 - sicurezza, storico celle e layout verticale configuratore */
.control-with-history,
.matrix-control-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  gap: .35rem;
}
.history-btn {
  width: 2.35rem;
  min-width: 2.35rem;
  border: 1px solid rgba(30,110,140,.22);
  border-radius: 13px;
  background: rgba(30,110,140,.08);
  color: var(--fervo-deep);
  font-size: .72rem;
  font-weight: 900;
  cursor: pointer;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
}
.history-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 18px rgba(31, 40, 37, .10);
  background: rgba(30,110,140,.14);
}
.history-btn.has-history {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
}
.line-grid {
  grid-template-columns: 1fr;
  gap: .9rem;
}
.line-card {
  width: 100%;
}
.add-row-btn {
  justify-self: start;
  margin-top: .9rem;
}
.all-rows-visible {
  margin: .8rem 0 0;
  color: var(--muted);
  font-size: .84rem;
  font-weight: 700;
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(23, 33, 30, .48);
  backdrop-filter: blur(10px);
}
.modal-card {
  position: relative;
  width: min(680px, 96vw);
  max-height: min(82vh, 760px);
  overflow: auto;
  padding: 1.2rem;
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 28px;
  background: linear-gradient(160deg, #ffffff, #f7fbf9);
  box-shadow: 0 28px 90px rgba(23, 33, 30, .28);
}
.modal-card h3 {
  margin: .15rem 2.4rem .55rem 0;
  color: var(--fervo-graphite);
  font-size: 1.25rem;
}
.modal-card p {
  color: var(--muted);
  line-height: 1.5;
}
.modal-close {
  position: absolute;
  top: .8rem;
  right: .8rem;
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--fervo-graphite);
  cursor: pointer;
  font-size: 1.25rem;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .65rem;
  margin-top: 1rem;
}
.history-current {
  padding: .75rem .85rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
}
.history-list {
  display: grid;
  gap: .65rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}
.history-list li {
  display: grid;
  grid-template-columns: minmax(140px, .7fr) 1fr 1fr;
  gap: .65rem;
  align-items: stretch;
  padding: .75rem;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(244, 247, 246, .72);
}
.history-list time {
  color: var(--fervo-deep);
  font-size: .78rem;
  font-weight: 900;
}
.history-list div {
  display: grid;
  gap: .16rem;
}
.history-list span {
  color: var(--muted);
  font-size: .68rem;
  font-weight: 850;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.history-list strong {
  overflow-wrap: anywhere;
  color: var(--fervo-graphite);
  font-size: .86rem;
}
.history-list .history-empty {
  grid-template-columns: 1fr;
  color: var(--muted);
  font-weight: 750;
}
@media (max-width: 900px) {
  .line-fields,
  .line-fields.two,
  .metrics-row,
  body.show-internal .metrics-row,
  .history-list li {
    grid-template-columns: 1fr;
  }
}

.row-delete-btn {
  align-self: start;
  flex: 0 0 auto;
  border: 1px solid rgba(179, 42, 42, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .86);
  color: #9b2c2c;
  cursor: pointer;
  font-size: .72rem;
  font-weight: 900;
  letter-spacing: .03em;
  padding: .42rem .62rem;
  text-transform: uppercase;
  transition: transform .16s ease, border-color .16s ease, background .16s ease;
}
.row-delete-btn:hover {
  transform: translateY(-1px);
  border-color: rgba(179, 42, 42, .36);
  background: rgba(179, 42, 42, .08);
}
.voice-card { width: min(760px, 96vw); }
.voice-textarea {
  width: 100%;
  min-height: 9rem;
  resize: vertical;
  margin-top: .8rem;
  padding: .9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.84);
  color: var(--fervo-graphite);
  font: inherit;
  line-height: 1.45;
  outline: none;
}
.voice-textarea:focus {
  border-color: rgba(30,110,140,.48);
  box-shadow: 0 0 0 4px rgba(30,110,140,.10);
}
.voice-status {
  margin-top: .65rem;
  color: var(--muted);
  font-size: .86rem;
  font-weight: 800;
}
.voice-result {
  min-height: 2.5rem;
  margin: .9rem 0 0;
  padding: .85rem;
  white-space: pre-wrap;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(19,50,77,.06);
  color: var(--fervo-graphite);
  font-family: inherit;
  font-size: .86rem;
}
.voice-result.has-clarifications {
  border-color: rgba(98, 170, 53, .65);
  background: rgba(255, 249, 216, .82);
}
@media (max-width: 720px) {
  .line-top { align-items: flex-start; }
  .row-delete-btn { margin-left: auto; }
}


/* v8 refinements */
.catalog-grid { grid-template-columns: 1fr !important; }
.product-card { grid-template-columns: minmax(220px,.9fr) 1.7fr auto; align-items:start; }
.product-card .product-top { grid-template-columns: 1fr; }
.product-sections { grid-template-columns: repeat(3, minmax(0,1fr)); align-items: stretch; }
.price-box.margin-box { background: linear-gradient(135deg, rgba(46,148,65,.15), rgba(30,110,140,.09)); }
.cost-actions { display:flex; gap:.5rem; justify-content:flex-end; align-items:flex-start; }
.cost-delete-btn { white-space:nowrap; }
.margin-value { font-size:1.25rem; font-weight:950; letter-spacing:-.03em; color:var(--fervo-deep); }
.margin-detail { color: var(--muted); font-size:.78rem; font-weight:750; line-height:1.35; }
.triple-margin { gap:.65rem; }
.margin-line { display:grid; grid-template-columns: 1fr auto; gap:.2rem .8rem; padding:.55rem .65rem; border:1px solid var(--border); border-radius:16px; background:rgba(255,255,255,.62); }
.margin-line strong { color:var(--fervo-graphite); font-size:.78rem; }
.margin-line span { font-weight:950; color:var(--fervo-deep); }
.margin-line small { grid-column:1 / -1; color:var(--muted); font-size:.72rem; line-height:1.35; }
.currency-note { display:inline-flex; align-items:center; gap:.35rem; padding:.35rem .55rem; border-radius:999px; background:rgba(30,110,140,.10); color:var(--fervo-deep); font-size:.75rem; font-weight:900; }
.solution-text-panel { margin-bottom: 1rem; }
.solution-description-input { width:100%; min-height: 9.5rem; resize:vertical; padding:1rem; border:1px solid var(--line); border-radius:22px; background:rgba(255,255,255,.82); color:var(--fervo-graphite); font:inherit; line-height:1.45; outline:none; }
.solution-description-input:focus { border-color: rgba(30,110,140,.55); box-shadow:0 0 0 4px rgba(30,110,140,.10); }
.matrix-toolbar { gap:.55rem; flex-wrap:wrap; }
@media (max-width: 980px) { .product-card, .product-sections { grid-template-columns: 1fr; } .cost-actions { justify-content:flex-start; } }


/* v9 NanOMeter product and document assistant */
.product-card.nano-protected {
  border-color: rgba(30, 110, 140, .30);
  background: linear-gradient(145deg, #ffffff 0%, #f6fbfb 100%);
}
.nano-product-media {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: .8rem;
  align-items: center;
  grid-column: 1 / -1;
  margin-top: .75rem;
  padding: .85rem;
  border: 1px solid rgba(30,110,140,.18);
  border-radius: 20px;
  background: rgba(30,110,140,.055);
}
.nano-product-media img {
  display: block;
  width: 104px;
  max-height: 110px;
  object-fit: contain;
  mix-blend-mode: multiply;
}
.nano-product-media strong { color: var(--fervo-deep); }
.nano-product-media p { margin: .18rem 0 .55rem; color: var(--muted); font-size: .82rem; line-height: 1.35; }
.nano-lock-note {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .45rem .65rem;
  border: 1px solid rgba(81,85,81,.14);
  border-radius: 999px;
  background: rgba(81,85,81,.06);
  color: var(--fervo-graphite);
  font-size: .75rem;
  font-weight: 900;
  white-space: nowrap;
}
.line-nano-preview {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: .75rem;
  align-items: center;
  margin: .7rem 0 0;
  padding: .7rem .75rem;
  border: 1px solid rgba(30,110,140,.16);
  border-radius: 18px;
  background: rgba(30,110,140,.06);
}
.line-nano-preview img { width: 72px; max-height: 76px; object-fit: contain; mix-blend-mode: multiply; }
.line-nano-preview p { margin: .08rem 0; color: var(--muted); font-size: .78rem; line-height: 1.35; }
.nano-doc-card { width: min(860px, 96vw); }
.nano-doc-search { display:grid; gap:.65rem; margin-top: .9rem; }
.nano-doc-search textarea {
  width: 100%;
  min-height: 6.2rem;
  resize: vertical;
  padding: .9rem 1rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.84);
  color: var(--fervo-graphite);
  font: inherit;
  line-height: 1.45;
  outline: none;
}
.nano-doc-answer {
  min-height: 3.2rem;
  padding: .9rem;
  white-space: pre-wrap;
  border: 1px solid rgba(30,110,140,.18);
  border-radius: 18px;
  background: rgba(30,110,140,.06);
  color: var(--fervo-graphite);
  font-size: .9rem;
  line-height: 1.45;
}
.nano-doc-quick { display:flex; gap:.5rem; flex-wrap:wrap; margin-top:.6rem; }

.product-pdf-frame {
  width: 100%;
  min-height: 72vh;
  border: 1px solid rgba(81,85,81,.18);
  border-radius: 18px;
  background: #fff;
  margin-top: .85rem;
}
.pdf-doc-card { width: min(1120px, 96vw); }

@media (max-width: 680px) { .nano-product-media, .line-nano-preview { grid-template-columns: 1fr; } }



    .pricing-structure-blocks { display: grid; grid-template-columns: repeat(3, minmax(220px, 1fr)); gap: 14px; width: 100%; }
    .pricing-tier-box { border-left: 4px solid var(--fervo-teal); }
    .pricing-tier-box:nth-child(1) { border-left-color: var(--fervo-lime); }
    .pricing-tier-box:nth-child(2) { border-left-color: var(--fervo-green); }
        @media (max-width: 1100px) { .pricing-structure-blocks { grid-template-columns: 1fr; } }


/* v14 Cost Table responsive layout refinement */
.cost-table-layout-note {
  margin: .45rem 0 0;
  color: var(--muted);
  font-size: .78rem;
}
.catalog-grid {
  grid-template-columns: 1fr !important;
  gap: 1rem;
}
.product-card {
  position: relative;
  display: grid !important;
  grid-template-columns: minmax(320px, 390px) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  overflow: hidden;
  padding: 1rem 1rem 1.05rem;
}
.product-card .product-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: .75rem;
  align-items: start;
  min-width: 0;
  align-self: stretch;
}
.product-card .product-top .data-field { grid-column: 1 / -1; }
.product-card .product-top .product-code { grid-column: 1; width: 100%; }
.product-card .product-top .currency-note { grid-column: 1; width: 100%; justify-content: flex-start; }
.product-sections {
  display: grid !important;
  grid-template-columns: minmax(230px, .76fr) minmax(360px, 1.68fr) minmax(250px, .82fr);
  gap: .8rem;
  align-items: stretch;
  min-width: 0;
}
.product-sections > .price-box:first-child { grid-column: 1; }
.product-sections > .pricing-structure-blocks { grid-column: 2; }
.product-sections > .margin-box { grid-column: 3; }
.product-sections > .data-field,
.product-sections > .product-note { grid-column: 1 / -1; }
.pricing-structure-blocks {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: .75rem !important;
  min-width: 0;
}
.pricing-tier-box {
  display: grid !important;
  grid-template-columns: minmax(160px, .62fr) repeat(3, minmax(145px, 1fr));
  gap: .6rem .75rem;
  align-items: end;
  min-width: 0;
  border-left-width: 5px;
}
.pricing-tier-box h5 {
  align-self: center;
  min-width: 0;
  line-height: 1.25;
}
.pricing-tier-box .formula-hint {
  grid-column: 2 / -1;
  margin-top: -.15rem;
}
.price-box.margin-box {
  min-width: 0;
  align-content: start;
}
.margin-line {
  padding: .54rem .62rem;
}
.margin-line span {
  font-size: 1rem;
  white-space: nowrap;
}
.margin-line small { font-size: .68rem; }
.nano-product-media {
  grid-column: 1 / -1;
  grid-template-columns: minmax(150px, 190px) minmax(0,1fr) !important;
  min-height: 170px;
  padding: 1rem;
  align-items: center;
}
.nano-product-media img {
  width: 100% !important;
  max-width: 190px;
  max-height: 175px !important;
  object-fit: contain;
  justify-self: center;
}
.nano-product-media strong {
  display: block;
  font-size: 1rem;
  margin-bottom: .15rem;
}
.nano-product-media p {
  font-size: .86rem;
  line-height: 1.42;
}
.cost-actions {
  position: absolute !important;
  top: .9rem;
  right: .9rem;
  z-index: 2;
  max-width: min(270px, 34vw);
}
.cost-actions .btn,
.nano-lock-note {
  box-shadow: 0 10px 22px rgba(0,0,0,.06);
}
.product-card.custom-product-card .product-sections {
  grid-template-columns: minmax(230px, .76fr) minmax(360px, 1.68fr) minmax(250px, .82fr);
}
@media (max-width: 1420px) {
  .product-card { grid-template-columns: minmax(280px, 350px) minmax(0,1fr); }
  .product-sections { grid-template-columns: minmax(220px,.75fr) minmax(330px,1.55fr) minmax(240px,.8fr); }
  .pricing-tier-box { grid-template-columns: 1fr repeat(3, minmax(130px, 1fr)); }
}
@media (max-width: 1180px) {
  .product-card {
    grid-template-columns: 1fr;
    padding-top: 3.2rem;
  }
  .product-card .product-top {
    grid-template-columns: minmax(260px, .8fr) minmax(360px, 1.2fr);
    align-items: stretch;
  }
  .product-card .product-top .data-field { grid-column: 1; }
  .product-card .product-top .product-code,
  .product-card .product-top .currency-note { grid-column: 1; }
  .nano-product-media { grid-column: 2; grid-row: 1 / span 3; }
  .product-sections,
  .product-card.custom-product-card .product-sections { grid-template-columns: minmax(220px,.7fr) minmax(0,1.4fr); }
  .product-sections > .price-box:first-child { grid-column: 1; }
  .product-sections > .pricing-structure-blocks { grid-column: 2; }
  .product-sections > .margin-box { grid-column: 1 / -1; }
  .price-box.margin-box { grid-template-columns: repeat(3, minmax(0,1fr)); }
  .price-box.margin-box h5 { grid-column: 1 / -1; }
}
@media (max-width: 860px) {
  .product-card { padding: 3.2rem .82rem .9rem; border-radius: 18px; }
  .product-card .product-top,
  .product-sections,
  .product-card.custom-product-card .product-sections,
  .pricing-tier-box,
  .price-box.margin-box { grid-template-columns: 1fr !important; }
  .product-card .product-top .data-field,
  .product-card .product-top .product-code,
  .product-card .product-top .currency-note,
  .nano-product-media,
  .product-sections > .price-box:first-child,
  .product-sections > .pricing-structure-blocks,
  .product-sections > .margin-box,
  .pricing-tier-box .formula-hint { grid-column: 1 / -1; grid-row: auto; }
  .nano-product-media { min-height: 0; grid-template-columns: 1fr !important; }
  .nano-product-media img { max-height: 220px !important; }
  .cost-actions { max-width: calc(100% - 1.6rem); }
}
@media (max-width: 520px) {
  .pricing-tier-box { padding: .72rem; }
  .price-box { padding: .68rem; }
  .cost-actions { position: static !important; grid-row: 3; max-width: 100%; justify-content: flex-start; }
  .product-card { padding-top: .82rem; }
}


/* v15 Cost Table compact anti-overlap refinement */
.catalog-grid { grid-template-columns: 1fr !important; gap: .82rem !important; }
.product-card {
  overflow: visible !important;
  grid-template-columns: minmax(260px, 310px) minmax(0, 1fr) !important;
  gap: .75rem !important;
  padding: .78rem !important;
  border-radius: 18px !important;
}
.product-card .product-top { gap: .55rem !important; min-width:0 !important; }
.product-card .product-top .input,
.product-card .product-top .select,
.product-card .product-top .textarea,
.product-sections .input,
.product-sections .select,
.product-sections .textarea {
  min-height: 2.05rem !important;
  padding: .34rem .48rem !important;
  border-radius: 11px !important;
  font-size: .86rem !important;
  line-height: 1.2 !important;
}
.product-card .product-top .textarea,
.product-sections .textarea { min-height: 4rem !important; }
.product-card .product-top .data-field,
.product-sections .data-field { gap: .18rem !important; }
.product-card .product-top label,
.product-sections label,
.pricing-tier-box h5,
.price-box h5 {
  font-size: .64rem !important;
  letter-spacing: .035em !important;
  line-height: 1.15 !important;
}
.product-code { height: 1.82rem !important; min-width: 2rem !important; border-radius: 10px !important; font-size: .68rem !important; }
.currency-note { min-height: 1.55rem !important; font-size: .67rem !important; padding: .3rem .45rem !important; }
.control-with-history { gap: .22rem !important; }
.history-btn { width: 1.92rem !important; min-width: 1.92rem !important; border-radius: 10px !important; font-size: .65rem !important; }
.product-sections {
  grid-template-columns: minmax(190px, 220px) minmax(0, 1fr) !important;
  gap: .62rem !important;
  align-items: start !important;
  min-width: 0 !important;
}
.product-sections > .price-box:first-child { grid-column: 1 !important; grid-row: 1 !important; }
.product-sections > .pricing-structure-blocks { grid-column: 2 !important; grid-row: 1 !important; min-width: 0 !important; }
.product-sections > .margin-box { grid-column: 1 / -1 !important; grid-row: 2 !important; }
.product-sections > .data-field,
.product-sections > .product-note { grid-column: 1 / -1 !important; }
.price-box { padding: .55rem !important; gap: .42rem !important; border-radius: 15px !important; }
.pricing-structure-blocks { gap: .48rem !important; min-width: 0 !important; }
.pricing-tier-box {
  grid-template-columns: minmax(125px, 155px) repeat(3, minmax(88px, 1fr)) !important;
  gap: .36rem .46rem !important;
  padding: .5rem .55rem !important;
  border-radius: 15px !important;
  border-left-width: 4px !important;
  align-items: end !important;
  min-width: 0 !important;
}
.pricing-tier-box h5 { align-self: center !important; overflow-wrap: anywhere !important; }
.pricing-tier-box .formula-hint { grid-column: 2 / -1 !important; font-size: .62rem !important; line-height: 1.15 !important; margin-top: -.1rem !important; }
.formula-hint { font-size: .63rem !important; line-height: 1.2 !important; }
.price-box.margin-box {
  display: grid !important;
  grid-template-columns: repeat(3, minmax(0,1fr)) !important;
  gap: .45rem !important;
  align-content: start !important;
}
.price-box.margin-box h5 { grid-column: 1 / -1 !important; }
.margin-line { padding: .42rem .5rem !important; border-radius: 12px !important; gap: .12rem .35rem !important; }
.margin-line strong { font-size: .68rem !important; }
.margin-line span { font-size: .92rem !important; }
.margin-line small { font-size: .61rem !important; line-height: 1.18 !important; }
.nano-product-media {
  grid-template-columns: minmax(130px, 165px) minmax(0,1fr) !important;
  min-height: 145px !important;
  padding: .75rem !important;
  border-radius: 17px !important;
}
.nano-product-media img { max-width: 165px !important; max-height: 145px !important; }
.nano-product-media strong { font-size: .92rem !important; }
.nano-product-media p { font-size: .74rem !important; line-height: 1.25 !important; margin-bottom: .35rem !important; }
.nano-product-media .btn { padding: .42rem .58rem !important; font-size: .72rem !important; }
.cost-actions { top: .65rem !important; right: .65rem !important; max-width: 220px !important; }
.cost-actions .btn,
.nano-lock-note { padding: .4rem .58rem !important; font-size: .7rem !important; border-radius: 999px !important; }
@media (max-width: 1280px) {
  .product-card { grid-template-columns: minmax(235px, 285px) minmax(0,1fr) !important; }
  .product-sections { grid-template-columns: minmax(175px, 205px) minmax(0,1fr) !important; }
  .pricing-tier-box { grid-template-columns: minmax(115px, 140px) repeat(3, minmax(78px, 1fr)) !important; }
}
@media (max-width: 1060px) {
  .product-card { grid-template-columns: 1fr !important; padding-top: 2.75rem !important; }
  .product-card .product-top { grid-template-columns: minmax(220px, .8fr) minmax(260px, 1fr) !important; }
  .nano-product-media { grid-column: 2 !important; grid-row: 1 / span 3 !important; }
  .product-sections { grid-template-columns: 1fr !important; }
  .product-sections > .price-box:first-child,
  .product-sections > .pricing-structure-blocks,
  .product-sections > .margin-box { grid-column: 1 / -1 !important; grid-row: auto !important; }
}
@media (max-width: 760px) {
  .product-card { padding: .7rem !important; }
  .product-card .product-top,
  .nano-product-media,
  .pricing-tier-box,
  .price-box.margin-box { grid-template-columns: 1fr !important; }
  .nano-product-media { grid-column: 1 !important; grid-row: auto !important; min-height:0 !important; }
  .nano-product-media img { max-height: 185px !important; }
  .pricing-tier-box .formula-hint { grid-column: 1 / -1 !important; }
  .cost-actions { position: static !important; max-width: 100% !important; justify-content: flex-start !important; }
}


/* v16 Cost Table width and action placement refinement */
.app-shell {
  grid-template-columns: minmax(210px, 260px) minmax(0, 1fr) !important;
  width: min(1960px, 100%) !important;
  padding-left: clamp(.65rem, 1.2vw, 1.25rem) !important;
  padding-right: clamp(.65rem, 1.2vw, 1.25rem) !important;
}
.cost-table-view .catalog-grid,
#costTableList.catalog-grid,
.catalog-grid {
  width: 100% !important;
  max-width: none !important;
}
.product-card {
  grid-template-columns: minmax(300px, 360px) minmax(0, 1fr) !important;
  grid-template-rows: auto auto !important;
  column-gap: .95rem !important;
  row-gap: .58rem !important;
  padding: .58rem .72rem .78rem !important;
  overflow: visible !important;
}
.product-card .cost-actions {
  position: relative !important;
  grid-column: 1 / -1 !important;
  grid-row: 1 !important;
  justify-self: end !important;
  align-self: start !important;
  top: -.18rem !important;
  right: auto !important;
  max-width: none !important;
  min-height: 1.55rem !important;
  z-index: 5 !important;
  margin: 0 0 -.22rem 0 !important;
}
.product-card .cost-actions .btn,
.product-card .cost-actions .nano-lock-note {
  min-height: 1.55rem !important;
  padding: .26rem .62rem !important;
  font-size: .66rem !important;
  line-height: 1 !important;
  box-shadow: 0 8px 20px rgba(0,0,0,.07) !important;
}
.product-card .product-top {
  grid-column: 1 !important;
  grid-row: 2 !important;
}
.product-card .product-sections {
  grid-column: 2 !important;
  grid-row: 2 !important;
}
.product-sections {
  grid-template-columns: minmax(185px, 215px) minmax(0, 1fr) !important;
  gap: .55rem !important;
}
.pricing-tier-box {
  grid-template-columns: minmax(118px, 145px) repeat(3, minmax(96px, 1fr)) !important;
  gap: .30rem .40rem !important;
  padding: .43rem .50rem !important;
}
.product-sections .input,
.product-sections .select,
.product-sections .textarea,
.product-card .product-top .input,
.product-card .product-top .select,
.product-card .product-top .textarea {
  min-height: 1.92rem !important;
  padding: .28rem .42rem !important;
  font-size: .82rem !important;
}
.history-btn {
  width: 1.75rem !important;
  min-width: 1.75rem !important;
  height: 1.92rem !important;
}
.nano-product-media {
  min-height: 165px !important;
  grid-template-columns: minmax(150px, 180px) minmax(0,1fr) !important;
}
.nano-product-media img {
  max-width: 180px !important;
  max-height: 162px !important;
}
.price-box.margin-box {
  margin-top: .08rem !important;
}
@media (max-width: 1220px) {
  .app-shell { grid-template-columns: minmax(190px, 235px) minmax(0, 1fr) !important; }
  .product-card { grid-template-columns: minmax(260px, 320px) minmax(0,1fr) !important; }
  .product-sections { grid-template-columns: 1fr !important; }
  .product-sections > .price-box:first-child,
  .product-sections > .pricing-structure-blocks,
  .product-sections > .margin-box { grid-column: 1 / -1 !important; grid-row: auto !important; }
}
@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr !important; }
  .product-card { grid-template-columns: 1fr !important; }
  .product-card .cost-actions,
  .product-card .product-top,
  .product-card .product-sections { grid-column: 1 !important; grid-row: auto !important; }
  .product-card .cost-actions { justify-self: start !important; top: 0 !important; margin-bottom: .2rem !important; }
}
@media (max-width: 760px) {
  .pricing-tier-box,
  .price-box.margin-box,
  .nano-product-media { grid-template-columns: 1fr !important; }
}



/* v18: show quote input, executive summary and pricing toolbar only in End User Pricing */
/* v20: clean baseline, required sale type and improved accessories handling */
body:not(.view-pricing) .top-grid,
body:not(.view-pricing) .tool-strip {
  display: none !important;
}
body:not(.view-pricing) .hero-panel {
  min-height: 145px;
}
  

/* v20: clean baseline, required sale type, accessory costing simplification and spacing fixes */
#saleTypeSelect:invalid { border-color: rgba(186,47,47,.42); box-shadow: 0 0 0 4px rgba(186,47,47,.08); }
#totalsWrap { margin-top: 1.35rem !important; padding-top: .35rem !important; clear: both !important; position: relative !important; z-index: 2 !important; }
#solutionsWrap { margin-bottom: 1.25rem !important; }
#solutionsWrap .solution-card:last-child { margin-bottom: 1rem !important; }
.totals-panel { position: relative !important; z-index: 3 !important; }
.product-sections > .price-box:first-child .data-field:only-of-type { align-self: start; }
.select.data-input { min-height: 2.05rem; }



/* v23: Cost Table protection and Excel master import/export */
.cost-header-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  justify-content: flex-end;
  align-items: center;
}
.cost-master-file {
  position: relative;
  overflow: hidden;
}
.cost-master-file input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.cost-master-note {
  margin-top: .35rem;
  color: var(--muted);
  font-size: .76rem;
  line-height: 1.35;
}
@media (max-width: 820px) {
  .cost-header-actions { justify-content: flex-start; }
}

  

/* v25 Economic Summary CAPEX/OPEX grouped layout */
.economic-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .95rem;
  align-items: stretch;
}
.economic-group-card {
  display: grid;
  gap: .75rem;
  padding: .95rem;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.78);
}
.economic-group-card.capex {
  border-left: 6px solid var(--fervo-deep);
}
.economic-group-card.opex {
  border-left: 6px solid var(--fervo-lime);
}
.economic-group-head {
  display: flex;
  justify-content: space-between;
  gap: .8rem;
  align-items: flex-start;
}
.economic-group-title {
  margin: 0;
  color: var(--fervo-graphite);
  font-size: 1.02rem;
  font-weight: 950;
  letter-spacing: -.02em;
}
.economic-group-subtitle {
  margin: .18rem 0 0;
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.35;
}
.economic-total-chip {
  display: grid;
  gap: .12rem;
  min-width: 9.2rem;
  padding: .55rem .65rem;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(19,50,77,.10), rgba(30,110,140,.08));
  text-align: right;
}
.economic-total-chip span {
  color: var(--muted);
  font-size: .64rem;
  font-weight: 900;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.economic-total-chip strong {
  color: var(--fervo-deep);
  font-size: 1.06rem;
  font-weight: 950;
}
.economic-lines {
  display: grid;
  gap: .42rem;
}
.economic-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: .65rem;
  align-items: center;
  padding: .55rem .62rem;
  border: 1px solid var(--line);
  border-radius: 15px;
  background: rgba(244,247,246,.58);
}
.economic-line-name {
  min-width: 0;
  color: var(--fervo-graphite);
  font-size: .84rem;
  font-weight: 880;
  line-height: 1.25;
}
.economic-line-qty {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 4.8rem;
  padding: .28rem .5rem;
  border-radius: 999px;
  background: rgba(98,170,53,.18);
  color: var(--fervo-deep);
  font-size: .72rem;
  font-weight: 950;
  white-space: nowrap;
}
.economic-line-value {
  min-width: 7.2rem;
  text-align: right;
  font-size: .84rem;
  font-weight: 920;
  color: var(--ink);
  white-space: nowrap;
}
.economic-grand-total {
  margin-top: .05rem;
  padding: .65rem .72rem;
  border-radius: 17px;
  color: #fff;
  background: linear-gradient(135deg, var(--fervo-deep), var(--fervo-teal));
}
.economic-grand-total .economic-line-name,
.economic-grand-total .economic-line-value { color: #fff; }
.economic-grand-total .economic-line-qty { background: rgba(255,255,255,.18); color: #fff; }
@media (max-width: 1180px) {
  .economic-summary-grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .economic-group-head, .economic-line { grid-template-columns: 1fr; }
  .economic-total-chip { text-align: left; }
  .economic-line-qty, .economic-line-value { justify-self: start; min-width: 0; text-align: left; }
}


/* v26 language selector */
.language-card {
  display: grid;
  gap: .42rem;
  padding: .82rem;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255,255,255,.68);
}
.language-card label {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.language-card .select { min-height: 2.25rem; }

  

/* v27: product preview images - avoid cropping in End User Pricing */
.line-nano-preview {
  grid-template-columns: minmax(112px, 132px) minmax(0, 1fr) !important;
  min-height: 98px !important;
  align-items: center !important;
  overflow: visible !important;
  padding: .72rem .9rem !important;
}
.line-nano-preview img {
  width: 100% !important;
  max-width: 124px !important;
  height: auto !important;
  max-height: 92px !important;
  object-fit: contain !important;
  object-position: center center !important;
  justify-self: center !important;
  mix-blend-mode: normal !important;
}
.line-main { overflow: visible !important; }
.line-card { overflow: visible !important; }
@media (max-width: 760px) {
  .line-nano-preview { grid-template-columns: 1fr !important; }
  .line-nano-preview img { max-width: 180px !important; max-height: 130px !important; }
}


/* v28: stronger image containment, signatures and log */
.line-nano-preview {
  display: grid !important;
  grid-template-columns: minmax(150px, 190px) minmax(0, 1fr) !important;
  min-height: 154px !important;
  height: auto !important;
  overflow: visible !important;
  align-items: center !important;
  padding: 1rem 1.1rem !important;
}
.line-nano-preview img {
  display: block !important;
  width: auto !important;
  height: auto !important;
  max-width: 180px !important;
  max-height: 138px !important;
  object-fit: contain !important;
  object-position: center center !important;
  overflow: visible !important;
  mix-blend-mode: normal !important;
}
.nano-product-media { overflow: visible !important; height: auto !important; }
.nano-product-media img { width: auto !important; height: auto !important; object-fit: contain !important; object-position: center center !important; overflow: visible !important; }
.line-card, .line-main, .product-card, .solution-card, .catalog-section { overflow: visible !important; }
.signature-panel, .log-panel { margin-top: 1rem; }
.signature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .85rem; }
.signature-card { display: grid; gap: .65rem; padding: .95rem; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.74); }
.signature-card h5 { margin: 0; color: var(--fervo-graphite); font-size: .92rem; text-transform: uppercase; letter-spacing: .04em; }
.signature-input.textarea { min-height: 6.2rem; }
.log-table { display: grid; gap: .45rem; max-height: 360px; overflow: auto; padding-right: .2rem; }
.log-head, .log-row { display: grid; grid-template-columns: minmax(150px,.35fr) minmax(220px,.75fr) minmax(0,1fr); gap: .65rem; align-items: start; }
.log-head { position: sticky; top: 0; z-index: 1; padding: .55rem .7rem; border-radius: 14px; background: #ecf3f1; color: var(--fervo-graphite); font-size: .72rem; font-weight: 900; letter-spacing: .05em; text-transform: uppercase; }
.log-row { padding: .65rem .7rem; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,.68); }
.log-date { color: var(--fervo-deep); font-size: .78rem; font-weight: 900; }
.log-action { color: var(--fervo-graphite); font-size: .82rem; font-weight: 850; overflow-wrap: anywhere; }
.log-details { color: var(--muted); font-size: .78rem; overflow-wrap: anywhere; }
@media (max-width: 820px) {
  .signature-grid, .log-head, .log-row { grid-template-columns: 1fr; }
  .line-nano-preview { grid-template-columns: 1fr !important; }
  .line-nano-preview img { max-width: 220px !important; max-height: 170px !important; justify-self: start !important; }
}


/* v29: removed third pricing structure and added cost rationale fields */
.pricing-structure-blocks { grid-template-columns: 1fr !important; }
.pricing-tier-box:nth-child(1) { border-left-color: var(--fervo-lime) !important; }
.pricing-tier-box:nth-child(2) { border-left-color: var(--fervo-green) !important; }
.cost-rationale-field { grid-column: 1 / -1; margin-top: .15rem; }
.cost-rationale-input.textarea { min-height: 5.2rem !important; resize: vertical; }
.price-box .cost-rationale-field label { color: var(--fervo-deep); }