.tool-hero {
  background: linear-gradient(135deg, #7c3aed 0%, #4f46e5 100%);
  padding: 5rem 1.5rem 3rem;
  margin-top: 68px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.tool-hero::before {
  content: ''; position: absolute;
  width: 400px; height: 400px; border-radius: 50%;
  background: rgba(255,255,255,0.06); top: -150px; right: -100px;
}
.tool-hero::after {
  content: ''; position: absolute;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,0.04); bottom: -100px; left: -50px;
}
.tool-hero-content { position: relative; z-index: 1; }
.tool-hero-icon {
  width: 72px; height: 72px; border-radius: 20px;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(10px);
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; margin: 0 auto 1.25rem;
  border: 1px solid rgba(255,255,255,0.2);
}
.tool-hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800; color: white;
  letter-spacing: -1px; margin-bottom: 0.75rem;
}
.tool-hero p { font-size: 1rem; color: rgba(255,255,255,0.78); max-width: 500px; margin: 0 auto; }
.tool-main { max-width: 960px; margin: 0 auto; padding: 2.5rem 1.5rem 5rem; }

.pce-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 1.5rem; align-items: start; }

.form-panel {
  background: white; border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow); overflow: hidden;
}
.form-panel-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  display: flex; align-items: center; gap: 0.75rem;
}
.form-panel-icon {
  width: 36px; height: 36px; border-radius: 10px;
  background: rgba(124,58,237,0.12);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.form-panel-title { font-size: 0.95rem; font-weight: 700; color: var(--text); }
.form-panel-body { padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }

.field-group { display: flex; flex-direction: column; gap: 0.4rem; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.875rem; }
.field-label {
  font-size: 0.78rem; font-weight: 600;
  color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.4px;
}
.field-input-wrap { position: relative; }
.field-prefix {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  font-size: 0.9rem; font-weight: 600; color: var(--text-muted); pointer-events: none;
}
.field-suffix {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 0.85rem; font-weight: 600; color: var(--text-muted); pointer-events: none;
}
.field-input {
  width: 100%; padding: 0.7rem 2.5rem 0.7rem 2rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem; font-family: 'Inter', sans-serif;
  color: var(--text); outline: none;
  transition: var(--transition); background: var(--bg);
}
.field-input.no-prefix { padding-left: 0.9rem; }
.field-input.no-suffix { padding-right: 0.9rem; }
.field-input:focus {
  border-color: #7c3aed; background: white;
  box-shadow: 0 0 0 3px rgba(124,58,237,0.1);
}
.field-input::placeholder { color: var(--text-light); }
.field-select {
  width: 100%; padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  font-size: 0.9rem; font-family: 'Inter', sans-serif;
  color: var(--text); outline: none;
  transition: var(--transition); background: var(--bg); cursor: pointer;
}
.field-select:focus { border-color: #7c3aed; background: white; box-shadow: 0 0 0 3px rgba(124,58,237,0.1); }

.toggle-group {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.875rem 1rem;
  background: var(--bg); border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
}
.toggle-label-wrap {}
.toggle-label { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.toggle-sub { font-size: 0.75rem; color: var(--text-muted); margin-top: 1px; }
.toggle-switch {
  position: relative; width: 44px; height: 24px;
  cursor: pointer; flex-shrink: 0;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: #cbd5e1; border-radius: 100px;
  transition: var(--transition);
}
.toggle-slider::before {
  content: ''; position: absolute;
  width: 18px; height: 18px; border-radius: 50%;
  left: 3px; top: 3px; background: white;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.toggle-switch input:checked + .toggle-slider { background: #7c3aed; }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); }

.btn-calc {
  width: 100%; padding: 0.9rem;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  color: white; border: none; border-radius: var(--radius);
  font-size: 0.95rem; font-weight: 700; font-family: 'Inter', sans-serif;
  cursor: pointer; transition: var(--transition);
  box-shadow: 0 4px 12px rgba(124,58,237,0.3);
}
.btn-calc:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(124,58,237,0.4); }
.btn-reset-small {
  width: 100%; padding: 0.7rem;
  background: transparent; color: var(--text-muted);
  border: 1.5px solid var(--border); border-radius: var(--radius);
  font-size: 0.875rem; font-weight: 600; font-family: 'Inter', sans-serif;
  cursor: pointer; transition: var(--transition);
}
.btn-reset-small:hover { border-color: var(--text-muted); color: var(--text); }

/* Summary Card */
.summary-card {
  background: white; border-radius: var(--radius-lg);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  overflow: hidden; display: none;
}
.summary-card.show { display: block; }
.summary-header {
  padding: 1.5rem;
  background: linear-gradient(135deg, #7c3aed, #4f46e5);
  color: white; position: relative; overflow: hidden;
}
.summary-header::before {
  content: ''; position: absolute;
  width: 150px; height: 150px; border-radius: 50%;
  background: rgba(255,255,255,0.06); top: -60px; right: -40px;
}
.summary-header-top { position: relative; z-index: 1; }
.summary-project-type { font-size: 0.8rem; color: rgba(255,255,255,0.7); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 0.25rem; }
.summary-price { font-size: 3rem; font-weight: 900; letter-spacing: -2px; line-height: 1; margin-bottom: 0.4rem; }
.summary-price-label { font-size: 0.85rem; color: rgba(255,255,255,0.75); }
.summary-badges { display: flex; gap: 0.5rem; margin-top: 1rem; flex-wrap: wrap; position: relative; z-index: 1; }
.summary-badge {
  padding: 3px 10px; border-radius: 100px;
  background: rgba(255,255,255,0.15); backdrop-filter: blur(4px);
  font-size: 0.72rem; font-weight: 700; color: white;
  border: 1px solid rgba(255,255,255,0.2);
}

.summary-body { padding: 1.25rem 1.5rem; display: flex; flex-direction: column; gap: 0; }
.summary-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.65rem 0; border-bottom: 1px solid var(--border-light);
  font-size: 0.875rem;
}
.summary-row:last-child { border-bottom: none; }
.summary-row-label { color: var(--text-muted); }
.summary-row-value { font-weight: 700; color: var(--text); }
.summary-row-value.discount { color: #10b981; }
.summary-row-value.highlight { color: #7c3aed; font-size: 1rem; }

.summary-total {
  margin: 0 1.5rem 1.25rem;
  padding: 1rem 1.25rem;
  background: rgba(124,58,237,0.06);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: var(--radius);
  display: flex; justify-content: space-between; align-items: center;
}
.summary-total-label { font-size: 0.875rem; font-weight: 700; color: var(--text); }
.summary-total-value { font-size: 1.5rem; font-weight: 900; letter-spacing: -1px; color: #7c3aed; }

.summary-actions { padding: 1.25rem 1.5rem; border-top: 1px solid var(--border-light); display: flex; gap: 0.75rem; }
.btn-copy {
  flex: 1; padding: 0.7rem;
  background: rgba(124,58,237,0.1); color: #7c3aed;
  border: 1.5px solid rgba(124,58,237,0.25); border-radius: var(--radius);
  font-size: 0.85rem; font-weight: 700; font-family: 'Inter', sans-serif;
  cursor: pointer; transition: var(--transition);
}
.btn-copy:hover { background: rgba(124,58,237,0.16); }

.placeholder-card {
  background: white; border-radius: var(--radius-lg);
  border: 1px solid var(--border); padding: 3rem 2rem;
  text-align: center; color: var(--text-light);
  box-shadow: var(--shadow);
}
.placeholder-icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.35; }
.placeholder-text { font-size: 0.875rem; }

@media (max-width: 720px) {
  .pce-layout { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
}