/* ==========================================================================
   HVAC Sizing (BTU) Calculator
   Editorial dossier, location lookup + design-conditions card, grouped house
   inputs, load breakdown with bars, Pro rooms / upgrades / balance point /
   printable report.
   ========================================================================== */

/* ---- Editorial ---------------------------------------------------------- */
.hvc-ed { display: grid; grid-template-columns: 104px 1fr; gap: 1.5rem; align-items: start; }
.hvc-ed-art { display: flex; flex-direction: column; align-items: center; color: var(--cluster-dark, #114F8D); }
.hvc-ed-code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
  margin-top: 0.6rem; opacity: 0.65; border: 1px solid currentColor;
  padding: 0.15rem 0.45rem; border-radius: 2px;
}
.hvc-ed-head { display: flex; align-items: baseline; gap: 0.7rem; flex-wrap: wrap; margin-bottom: 0.55rem; }
.hvc-ed-head h2 { font-weight: 600; letter-spacing: -0.01em; }
.hvc-ed-badge {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase;
  padding: 0.22rem 0.6rem; background: var(--cluster-dark, #114F8D); color: var(--cluster-on-dark); border-radius: 2px;
}
.hvc-ed p { margin: 0 0 0.7rem 0; }
.hvc-ed-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 0.55rem 1.4rem; padding-top: 0.8rem; font-size: 0.78rem;
  border-top: 1px dashed color-mix(in srgb, var(--cluster-dark, #114F8D) 35%, transparent);
}
.hvc-ed-meta span {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.6rem; letter-spacing: 0.14em; text-transform: uppercase;
  opacity: 0.6; display: block; margin-bottom: 0.1rem;
}
@media (max-width: 575.98px) {
  .hvc-ed { grid-template-columns: 1fr; gap: 1rem; }
  .hvc-ed-art { flex-direction: row; gap: 0.8rem; align-items: center; }
  .hvc-ed-code { margin-top: 0; }
}

/* ---- Location ----------------------------------------------------------- */
.hvc-loc-row { display: flex; gap: 0.6rem; align-items: stretch; }
.hvc-loc-wrap { flex: 1; min-width: 0; }
.hvc-loc-input { font-size: 1.02rem !important; }
.hvc-go-btn {
  border: 0; border-radius: var(--evvy-radius-lg, 12px); white-space: nowrap;
  background: var(--cluster-dark, #114F8D); color: var(--cluster-on-dark);
  padding: 0 1.2rem; font-weight: 700; font-size: 0.9rem; cursor: pointer;
  transition: background 0.15s ease, transform 0.12s ease;
}
.hvc-go-btn:hover { background: var(--cluster-hover, #0D3F70); transform: translateY(-1px); }
.hvc-go-btn:disabled { opacity: 0.6; cursor: default; transform: none; }
@media (max-width: 575.98px) {
  .hvc-loc-row { flex-direction: column; }
  .hvc-go-btn { padding: 0.7rem 1.2rem; }
}
.hvc-samples { display: flex; gap: 0.4rem; flex-wrap: wrap; margin-top: 0.7rem; align-items: center; }
.hvc-samples-label {
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase;
  color: var(--evvy-text-secondary, #6C757D);
}
.hvc-sample {
  border: 1px solid var(--evvy-border-color, #DEE2E6); background: transparent;
  border-radius: 999px; padding: 0.22rem 0.7rem; font-size: 0.76rem; cursor: pointer;
  color: var(--evvy-text-secondary, #6C757D);
}
.hvc-sample:hover { border-color: var(--cluster-dark, #114F8D); color: var(--cluster-dark, #114F8D); }

.hvc-loading, .hvc-error {
  display: flex; align-items: center; gap: 0.6rem; padding: 0.9rem 1rem; margin-top: 1rem;
  border-radius: var(--evvy-radius-lg, 12px); background: var(--cluster-surface, #EAF0F7); font-size: 0.88rem;
}
[data-bs-theme="dark"] .hvc-loading, [data-bs-theme="dark"] .hvc-error { background: var(--evvy-gray-100, #1E1E1E); }
.hvc-error { color: #C62828; }
[data-bs-theme="dark"] .hvc-error { color: #FF8A80; }
.hvc-spinner {
  width: 1rem; height: 1rem; border-radius: 50%; flex: none; display: inline-block;
  border: 2px solid color-mix(in srgb, var(--cluster-dark, #114F8D) 30%, transparent);
  border-top-color: var(--cluster-dark, #114F8D); animation: hvc-spin 0.8s linear infinite;
}
@keyframes hvc-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .hvc-spinner { animation-duration: 3s; } }

.hvc-design {
  margin-top: 1rem; padding: 0.9rem 1rem; border-radius: var(--evvy-radius-lg, 12px);
  border: 1px solid color-mix(in srgb, var(--cluster-dark, #114F8D) 30%, transparent);
  background: color-mix(in srgb, var(--cluster-dark, #114F8D) 4%, transparent); font-size: 0.86rem;
}
.hvc-design-head { margin-bottom: 0.6rem; display: flex; gap: 0.4rem; align-items: center; flex-wrap: wrap; }
.hvc-design-head i { color: var(--cluster-dark, #114F8D); }
[data-bs-theme="dark"] .hvc-design-head i { color: var(--cluster-text, #9EC5F0); }
.hvc-design-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 0.6rem 1rem; }
.hvc-design-grid > div { font-weight: 700; font-variant-numeric: tabular-nums; }
.hvc-design-grid span {
  display: block; font-size: 0.64rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--evvy-text-secondary, #6C757D);
}
.hvc-design-grid small { font-weight: 400; color: var(--evvy-text-secondary, #6C757D); }
.hvc-tag {
  font-size: 0.66rem; font-weight: 700; padding: 0.1rem 0.5rem; border-radius: 999px;
  background: rgba(239, 108, 0, 0.14); color: #C75100;
}
[data-bs-theme="dark"] .hvc-tag { color: #FFB74D; }
.hvc-manual { margin-top: 0.9rem; font-size: 0.86rem; }
.hvc-manual summary { cursor: pointer; color: var(--cluster-dark, #114F8D); font-weight: 600; }
[data-bs-theme="dark"] .hvc-manual summary { color: var(--cluster-text, #9EC5F0); }

/* ---- Inputs ------------------------------------------------------------- */
.hvc-group-title {
  font-weight: 700; font-size: 0.8rem; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--cluster-dark, #114F8D); margin-bottom: 0.7rem; display: flex; gap: 0.45rem; align-items: center;
}
[data-bs-theme="dark"] .hvc-group-title { color: var(--cluster-text, #9EC5F0); }
.hvc-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.hvc-span-2 { grid-column: span 2; }
@media (max-width: 991.98px) { .hvc-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 575.98px) { .hvc-grid-4 { grid-template-columns: 1fr; } .hvc-span-2 { grid-column: auto; } }
.hvc-check-cell { display: flex; flex-direction: column; justify-content: flex-end; gap: 0.3rem; }
.hvc-check { font-size: 0.85rem; display: flex; gap: 0.45rem; align-items: center; cursor: pointer; }
.hvc-link-btn {
  border: 0; background: none; padding: 0; text-align: left; font-size: 0.78rem;
  color: var(--cluster-dark, #114F8D); text-decoration: underline; cursor: pointer;
}
[data-bs-theme="dark"] .hvc-link-btn { color: var(--cluster-text, #9EC5F0); }

/* ---- Results ------------------------------------------------------------ */
.hvc-results { display: none; }
.hvc-results.show { display: block; }
.hvc-hero-sub {
  font-size: 0.85rem; line-height: 1.55; margin-top: 0.5rem;
  color: var(--evvy-text-secondary, #6C757D); max-width: 62ch; margin-inline: auto;
}
.hvc-note { font-size: 0.74rem; line-height: 1.4; margin-top: 0.35rem; color: var(--evvy-text-secondary, #6C757D); }
.hvc-row-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 991.98px) { .hvc-row-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575.98px) { .hvc-row-4 { grid-template-columns: 1fr; } }

.hvc-caveat {
  display: flex; gap: 0.6rem; align-items: flex-start; margin-top: 1rem;
  padding: 0.7rem 0.9rem; border-radius: var(--evvy-radius-lg, 12px);
  background: var(--cluster-surface, #EAF0F7); font-size: 0.82rem; line-height: 1.55;
}
.hvc-caveat i { color: var(--cluster-dark, #114F8D); font-size: 1rem; flex: none; margin-top: 0.1rem; }
[data-bs-theme="dark"] .hvc-caveat { background: var(--evvy-gray-100, #1E1E1E); }

.hvc-panel {
  border: 1px solid var(--evvy-border-color, #DEE2E6); border-radius: var(--evvy-radius-lg, 12px);
  padding: 1.1rem 1.2rem; margin-top: 1.25rem; background: var(--bs-body-bg, #fff);
}
[data-bs-theme="dark"] .hvc-panel { background: var(--evvy-gray-100, #1E1E1E); }
.hvc-panel-title {
  font-weight: 700; font-size: 0.95rem; margin-bottom: 0.8rem;
  display: flex; align-items: center; gap: 0.45rem; color: var(--cluster-dark, #114F8D);
}
[data-bs-theme="dark"] .hvc-panel-title { color: var(--cluster-text, #9EC5F0); }
.hvc-muted { font-size: 0.8rem; color: var(--evvy-text-secondary, #6C757D); line-height: 1.55; }
.hvc-outline-btn {
  border: 1px solid var(--cluster-dark, #114F8D); background: transparent;
  color: var(--cluster-dark, #114F8D); border-radius: 999px;
  padding: 0.35rem 0.95rem; font-size: 0.82rem; font-weight: 600; cursor: pointer;
}
.hvc-outline-btn:hover { background: var(--cluster-dark, #114F8D); color: var(--cluster-on-dark); }
[data-bs-theme="dark"] .hvc-outline-btn { color: var(--cluster-text, #9EC5F0); border-color: currentColor; }
.hvc-icon-btn { border: 0; background: none; color: var(--evvy-text-secondary, #6C757D); cursor: pointer; padding: 0.2rem 0.4rem; }
.hvc-icon-btn:hover { color: #C62828; }

/* ---- Tables ------------------------------------------------------------- */
.hvc-scroll { overflow-x: auto; }
.hvc-table { width: 100%; border-collapse: collapse; font-size: 0.84rem; min-width: 520px; }
.hvc-table th {
  text-align: left; font-size: 0.66rem; letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--evvy-text-secondary, #6C757D); font-weight: 700; white-space: nowrap;
  padding: 0.4rem 0.7rem 0.4rem 0; border-bottom: 1px solid var(--evvy-border-color, #DEE2E6);
}
.hvc-table td {
  padding: 0.5rem 0.7rem 0.5rem 0; vertical-align: middle;
  border-bottom: 1px solid color-mix(in srgb, var(--evvy-border-color, #DEE2E6) 55%, transparent);
}
.hvc-table th.hvc-num, .hvc-num { text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.hvc-tr-total td { font-weight: 700; border-top: 2px solid var(--evvy-border-color, #DEE2E6); border-bottom: 0; }
.hvc-tr-sub td { color: var(--evvy-text-secondary, #6C757D); }
.hvc-note-cell { font-size: 0.74rem; color: var(--evvy-text-secondary, #6C757D); }
.hvc-bar-cell { width: 22%; min-width: 70px; }
.hvc-bar { display: block; height: 0.55rem; border-radius: 999px; min-width: 2px; }
.hvc-bar-h { background: #D9480F; }
.hvc-bar-c { background: var(--cluster-dark, #114F8D); }
[data-bs-theme="dark"] .hvc-bar-c { background: #5C9BD6; }
.hvc-rooms { min-width: 720px; }
.hvc-rooms input.form-control-sm, .hvc-rooms select { min-width: 64px; }
.hvc-rooms td:first-child input { min-width: 130px; }

/* ---- Balance point ------------------------------------------------------ */
.hvc-bp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0.6rem 1rem; margin: 1rem 0 0.6rem; }
.hvc-bp-grid span {
  display: block; font-size: 0.64rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--evvy-text-secondary, #6C757D);
}
.hvc-bp-grid strong { font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.hvc-chart svg { width: 100%; height: auto; display: block; }
.hvc-grid-line { stroke: var(--evvy-border-color, #DEE2E6); stroke-width: 1; }
.hvc-axis { font-size: 11px; fill: var(--evvy-text-secondary, #6C757D); }
.hvc-line-load { stroke: #D9480F; stroke-width: 2.5; }
.hvc-line-cap { stroke: var(--cluster-dark, #114F8D); stroke-width: 2.5; }
[data-bs-theme="dark"] .hvc-line-cap { stroke: #5C9BD6; }
.hvc-line-design { stroke: var(--evvy-text-secondary, #6C757D); stroke-width: 1.2; stroke-dasharray: 4 4; }
.hvc-dot { fill: var(--bs-body-bg, #fff); stroke: #D9480F; stroke-width: 2.5; }
.hvc-legend { display: flex; gap: 0.5rem 1rem; flex-wrap: wrap; font-size: 0.76rem; color: var(--evvy-text-secondary, #6C757D); margin: 0.4rem 0 0.8rem; align-items: center; }
.hvc-legend span { display: inline-block; width: 18px; height: 3px; border-radius: 2px; vertical-align: middle; }
.hvc-lg-load { background: #D9480F; }
.hvc-lg-cap { background: var(--cluster-dark, #114F8D); }
[data-bs-theme="dark"] .hvc-lg-cap { background: #5C9BD6; }
.hvc-lg-design { background: var(--evvy-text-secondary, #6C757D); }

/* ---- Print -------------------------------------------------------------- */
.hvc-print-area { display: none; }
@media print {
  body.hvc-printing .evvy-tool-ui > :not(.hvc-print-area),
  body.hvc-printing .evvy-tool-content, body.hvc-printing header, body.hvc-printing footer,
  body.hvc-printing nav, body.hvc-printing .evvy-tool-header, body.hvc-printing .evvy-ad-leaderboard { display: none !important; }
  body.hvc-printing .hvc-print-area { display: block !important; }
  .hvc-sheet h1 { font-size: 14pt; margin: 0 0 8pt; }
  .hvc-sheet p { font-size: 9pt; margin: 0 0 6pt; }
  .hvc-sheet table { width: 100%; border-collapse: collapse; font-size: 9.5pt; margin: 6pt 0; }
  .hvc-sheet th, .hvc-sheet td { border-top: 1px solid #999; padding: 3pt 6pt; text-align: left; }
  .hvc-sheet td:not(:first-child), .hvc-sheet th:not(:first-child) { text-align: right; }
  .hvc-sheet tr:last-child td { border-top: 2px solid #000; font-weight: 700; }
  .hvc-sheet-f { font-size: 7.5pt; color: #555; margin-top: 6pt; }
}