/* ============================================================
   HVAC Calculators — Shared Component CSS
   Loaded by WordPress for all calculator shortcodes/blocks.
   Per-calculator color overrides stay in each HTML file's :root
   ============================================================ */

/* ── Reset ── */
.fc-calculator-wrapper *, .fc-calculator-wrapper *::before, .fc-calculator-wrapper *::after {
  box-sizing: border-box; margin: 0; padding: 0;
}

/* ── Layout ── */
.fc-calculator-wrapper .container { max-width: 680px; margin: 0 auto; }
.fc-calculator-wrapper .card {
  background: var(--white, #fff);
  border-radius: var(--radius, 10px);
  box-shadow: 0 2px 16px rgba(0,0,0,.10);
  overflow: hidden;
}

/* ── Progress bar ── */
.fc-calculator-wrapper .progress-wrap { padding: 18px 28px 0; }
.fc-calculator-wrapper .progress-meta {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--muted, #666);
  margin-bottom: 6px; font-weight: 500;
}
.fc-calculator-wrapper .progress-bar-bg {
  height: 6px; background: #eee; border-radius: 99px; overflow: hidden;
}
.fc-calculator-wrapper .progress-bar-fill {
  height: 100%; background: var(--red, #c0392b);
  border-radius: 99px; transition: width .4s ease;
}

/* ── Screens ── */
.fc-calculator-wrapper .screen { display: none; padding: 28px 28px 24px; }
.fc-calculator-wrapper .screen.active { display: block; }

/* ── Start screen ── */
.fc-calculator-wrapper .start-icon {
  width: 100%; height: 200px;
  background: linear-gradient(135deg, var(--red, #c0392b) 0%, var(--red-dark, #96281b) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 72px; border-radius: 8px; margin-bottom: 24px;
}
.fc-calculator-wrapper .start-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 30px; font-weight: 700; margin-bottom: 12px; line-height: 1.2;
}
.fc-calculator-wrapper .start-desc {
  font-size: 15px; color: var(--muted, #666); line-height: 1.6; margin-bottom: 28px;
}

/* ── Question ── */
.fc-calculator-wrapper .question-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 22px; font-weight: 700; margin-bottom: 6px; line-height: 1.3;
}
.fc-calculator-wrapper .question-sub {
  font-size: 13px; color: var(--muted, #666); margin-bottom: 18px; line-height: 1.5;
}

/* ── Options ── */
.fc-calculator-wrapper .options { display: flex; flex-direction: column; gap: 10px; }
.fc-calculator-wrapper .opt-label {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--border, #e0e0e0);
  border-radius: var(--radius, 10px);
  cursor: pointer; transition: border-color .2s, background .2s;
  font-size: 15px; font-weight: 500; color: var(--text, #1a1a1a);
}
.fc-calculator-wrapper .opt-label:hover {
  border-color: var(--red, #c0392b); background: rgba(0,0,0,.03);
}
.fc-calculator-wrapper .opt-label input { display: none; }
.fc-calculator-wrapper .opt-circle {
  width: 22px; height: 22px;
  border: 2px solid var(--border, #e0e0e0); border-radius: 50%;
  flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s;
}
.fc-calculator-wrapper .opt-label.selected {
  border-color: var(--red, #c0392b); background: rgba(0,0,0,.03);
}
.fc-calculator-wrapper .opt-label.selected .opt-circle {
  border-color: var(--red, #c0392b); background: var(--red, #c0392b);
}
.fc-calculator-wrapper .opt-circle-dot {
  width: 8px; height: 8px; background: white; border-radius: 50%; display: none;
}
.fc-calculator-wrapper .opt-label.selected .opt-circle-dot { display: block; }

/* ── Slider ── */
.fc-calculator-wrapper .slider-wrap { margin: 12px 0 24px; }
.fc-calculator-wrapper .slider-value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 32px; font-weight: 700; color: var(--red, #c0392b); margin-bottom: 10px;
}
.fc-calculator-wrapper input[type=range] {
  width: 100%; -webkit-appearance: none; height: 6px;
  border-radius: 99px; background: #eee; outline: none;
}
.fc-calculator-wrapper input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 22px; height: 22px;
  border-radius: 50%; background: var(--red, #c0392b);
  cursor: pointer; border: 3px solid white; box-shadow: 0 1px 4px rgba(0,0,0,.2);
}
.fc-calculator-wrapper .slider-labels {
  display: flex; justify-content: space-between;
  font-size: 12px; color: var(--muted, #666); margin-top: 6px;
}

/* ── Buttons ── */
.fc-calculator-wrapper .btn-red {
  display: inline-block;
  background: var(--red, #c0392b); color: #fff;
  border: none; border-radius: 6px; padding: 14px 32px;
  font-size: 16px; font-weight: 700;
  font-family: 'Rajdhani', sans-serif;
  letter-spacing: .5px; cursor: pointer;
  transition: background .2s, transform .15s;
  text-transform: uppercase;
}
.fc-calculator-wrapper .btn-red:hover {
  background: var(--red-dark, #96281b); transform: translateY(-1px);
}
.fc-calculator-wrapper .btn-red:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.fc-calculator-wrapper .btn-red.pulse { animation: hvac-pulse 2s infinite ease-in-out; }
.fc-calculator-wrapper .btn-outline {
  background: transparent; color: var(--muted, #666);
  border: 2px solid var(--border, #e0e0e0); border-radius: 6px;
  padding: 12px 24px; font-size: 15px; font-weight: 600;
  font-family: 'Rajdhani', sans-serif;
  cursor: pointer; transition: border-color .2s;
  text-transform: uppercase;
}
.fc-calculator-wrapper .btn-outline:hover { border-color: var(--red, #c0392b); }
.fc-calculator-wrapper .nav-row {
  display: flex; justify-content: space-between; margin-top: 24px; gap: 12px;
}

/* ── Form ── */
.fc-calculator-wrapper .form-header {
  font-family: 'Rajdhani', sans-serif;
  font-size: 22px; font-weight: 700; margin-bottom: 6px;
}
.fc-calculator-wrapper .form-subtext {
  font-size: 13px; color: var(--muted, #666); margin-bottom: 20px; line-height: 1.5;
}
.fc-calculator-wrapper .form-group { margin-bottom: 14px; }
.fc-calculator-wrapper .form-group label {
  display: block; font-size: 12px; font-weight: 600;
  color: var(--muted, #666); margin-bottom: 5px;
  text-transform: uppercase; letter-spacing: .4px;
}
.fc-calculator-wrapper .form-group input {
  width: 100%; padding: 11px 13px;
  border: 2px solid var(--border, #e0e0e0); border-radius: 8px;
  font-size: 15px; outline: none; font-family: inherit;
  transition: border-color .2s;
}
.fc-calculator-wrapper .form-group input:focus { border-color: var(--red, #c0392b); }
.fc-calculator-wrapper .form-group input.error { border-color: #e74c3c; }
.fc-calculator-wrapper .form-disclaimer {
  font-size: 11px; color: #aaa; text-align: center;
  margin: 8px 0 16px; line-height: 1.5;
}
.fc-calculator-wrapper .btn-submit {
  width: 100%; background: var(--red, #c0392b); color: #fff;
  border: none; border-radius: 6px; padding: 15px;
  font-size: 17px; font-weight: 700;
  font-family: 'Rajdhani', sans-serif;
  cursor: pointer; transition: background .2s; text-transform: uppercase;
}
.fc-calculator-wrapper .btn-submit:hover { background: var(--red-dark, #96281b); }

/* ── Result ── */
.fc-calculator-wrapper .result-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'Rajdhani', sans-serif; font-size: 13px; font-weight: 700;
  letter-spacing: 1px; text-transform: uppercase;
  padding: 6px 14px; border-radius: 4px; margin-bottom: 16px;
  background: rgba(0,0,0,.06); color: var(--result-badge, var(--red, #c0392b));
}
.fc-calculator-wrapper .result-title {
  font-family: 'Rajdhani', sans-serif;
  font-size: 28px; font-weight: 700; margin-bottom: 20px; line-height: 1.2;
}
.fc-calculator-wrapper .result-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px;
}
.fc-calculator-wrapper .result-card {
  background: #f9f9f9; border-radius: 8px;
  padding: 16px; border-left: 4px solid var(--result-card, var(--red, #c0392b));
}
.fc-calculator-wrapper .result-card .label {
  font-size: 11px; color: var(--muted, #666);
  text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; font-weight: 600;
}
.fc-calculator-wrapper .result-card .value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 26px; font-weight: 700; color: var(--text, #1a1a1a);
}
.fc-calculator-wrapper .result-note {
  font-size: 13px; color: var(--muted, #666); line-height: 1.6; margin-bottom: 20px;
}

/* ── CTA box ── */
.fc-calculator-wrapper .cta-box {
  background: linear-gradient(135deg, var(--result-cta1, var(--red, #c0392b)), var(--result-cta2, var(--red-dark, #96281b)));
  border-radius: var(--radius, 10px); padding: 24px; text-align: center; margin-bottom: 16px;
}
.fc-calculator-wrapper .cta-box h3 {
  font-family: 'Rajdhani', sans-serif;
  color: #fff; font-size: 20px; font-weight: 700; margin-bottom: 8px;
}
.fc-calculator-wrapper .cta-box p {
  color: rgba(255,255,255,.9); font-size: 13px; margin-bottom: 14px; line-height: 1.5;
}
.fc-calculator-wrapper .btn-white {
  display: inline-block; background: white; color: var(--result-cta1, var(--red, #c0392b));
  border: none; border-radius: 6px; padding: 12px 28px;
  font-size: 15px; font-weight: 700;
  font-family: 'Rajdhani', sans-serif;
  cursor: pointer; text-decoration: none;
  transition: opacity .2s; text-transform: uppercase;
}
.fc-calculator-wrapper .btn-white:hover { opacity: .92; }
.fc-calculator-wrapper .restart-link {
  display: block; text-align: center; margin-top: 10px;
  font-size: 13px; color: var(--muted, #666);
  cursor: pointer; text-decoration: underline; background: none; border: none;
}

/* ── Pulse animation ── */
@keyframes hvac-pulse {
  0%,100% { transform: scale(1); }
  50%      { transform: scale(1.04); }
}

/* ── Responsive ── */
@media (max-width: 480px) {
  .fc-calculator-wrapper .screen { padding: 20px 16px; }
  .fc-calculator-wrapper .result-grid { grid-template-columns: 1fr; }
  .fc-calculator-wrapper .start-title { font-size: 24px; }
  .fc-calculator-wrapper .question-title { font-size: 18px; }
}