/* PCB Assembly Inquiry Form — v1.0.0
   System font stack, no external font dependencies */

/* ── VARIABLES ─────────────────────────────────────────────────────────────── */
.pcbai-wrap {
  --pcbai-green:        #00a651;
  --pcbai-green-dark:   #007a3d;
  --pcbai-green-deeper: #005a2d;
  --pcbai-green-light:  #e8f5ee;
  --pcbai-green-mid:    #c5e8d5;
  --pcbai-green-accent: #00c060;
  --pcbai-green-glow:   rgba(0,166,81,0.14);
  --pcbai-text-dark:    #1a2a1e;
  --pcbai-text-mid:     #3d5245;
  --pcbai-text-light:   #6b8575;
  --pcbai-border:       #d4eadc;
  --pcbai-bg-page:      #f4faf6;
  --pcbai-bg-card:      #ffffff;
  --pcbai-bg-section:   #f0f8f3;
  --pcbai-radius:       8px;
  --pcbai-radius-lg:    12px;
  --pcbai-shadow-sm:    0 2px 8px rgba(0,100,50,0.08);
  --pcbai-shadow-md:    0 4px 20px rgba(0,100,50,0.12);
  --pcbai-font:         -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --pcbai-font-mono:    ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

/* ── BASE ─────────────────────────────────────────────────────────────────── */
.pcbai-wrap *,
.pcbai-wrap *::before,
.pcbai-wrap *::after {
  box-sizing: border-box;
}
.pcbai-wrap {
  font-family: var(--pcbai-font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--pcbai-text-dark);
  background: var(--pcbai-bg-page);
  max-width: 1400px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

/* ── PAGE HEADER ─────────────────────────────────────────────────────────── */
.pcbai-page-header {
  text-align: center;
  margin-bottom: 32px;
  padding: 36px 40px;
  background: linear-gradient(135deg, var(--pcbai-green-deeper) 0%, var(--pcbai-green-dark) 50%, var(--pcbai-green) 100%);
  border-radius: var(--pcbai-radius-lg);
  position: relative;
  overflow: hidden;
}
.pcbai-page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.pcbai-page-header h1 {
  margin: 0;
  font-size: 30px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 0.5px;
  position: relative;
  font-family: var(--pcbai-font);
}
.pcbai-page-header p {
  color: rgba(255,255,255,0.82);
  font-size: 16px;
  margin: 8px 0 0;
  position: relative;
}
.pcbai-steps-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
  margin-top: 24px;
  position: relative;
  flex-wrap: wrap;
}
.pcbai-step-item {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  font-weight: 500;
}
.pcbai-step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  color: rgba(255,255,255,0.8);
}
.pcbai-step-item.pcbai-active { color: #fff; }
.pcbai-step-item.pcbai-active .pcbai-step-num {
  background: #fff;
  color: var(--pcbai-green-dark);
}
.pcbai-step-sep {
  width: 44px;
  height: 1px;
  background: rgba(255,255,255,0.28);
  margin: 0 6px;
  flex-shrink: 0;
}

/* ── MAIN LAYOUT ─────────────────────────────────────────────────────────── */
.pcbai-main-layout {
  display: grid;
  grid-template-columns: 1fr 310px;
  gap: 22px;
  align-items: start;
}

/* ── CARDS ─────────────────────────────────────────────────────────────────── */
.pcbai-card {
  background: var(--pcbai-bg-card);
  border-radius: var(--pcbai-radius-lg);
  border: 1px solid var(--pcbai-border);
  box-shadow: var(--pcbai-shadow-sm);
  overflow: hidden;
  margin-bottom: 20px;
}
.pcbai-card-header {
  background: linear-gradient(90deg, var(--pcbai-green-light) 0%, #f8fdf9 100%);
  border-bottom: 2px solid var(--pcbai-green);
  padding: 15px 22px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.pcbai-card-icon {
  width: 32px;
  height: 32px;
  background: var(--pcbai-green);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pcbai-card-icon svg {
  fill: #fff;
  width: 17px;
  height: 17px;
  display: block;
}
.pcbai-card-header h2 {
  font-size: 18px;
  font-weight: 700;
  color: var(--pcbai-green-deeper);
  margin: 0;
  letter-spacing: 0.2px;
  font-family: var(--pcbai-font);
}
.pcbai-card-subtitle {
  font-size: 14px;
  color: var(--pcbai-text-light);
  margin-top: 2px;
}
.pcbai-card-body {
  padding: 22px;
}

/* ── UPLOAD ZONE ─────────────────────────────────────────────────────────── */
.pcbai-upload-zone {
  border: 2px dashed var(--pcbai-green-mid);
  border-radius: var(--pcbai-radius);
  padding: 30px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.25s ease;
  background: var(--pcbai-bg-section);
}
.pcbai-upload-zone:hover,
.pcbai-upload-zone.pcbai-drag-over {
  border-color: var(--pcbai-green);
  background: var(--pcbai-green-light);
}
.pcbai-upload-icon {
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--pcbai-green), var(--pcbai-green-dark));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 14px;
  box-shadow: 0 4px 16px var(--pcbai-green-glow);
}
.pcbai-upload-icon svg {
  fill: #fff;
  width: 24px;
  height: 24px;
  display: block;
}
.pcbai-upload-zone h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--pcbai-text-dark);
  margin: 0 0 6px;
  font-family: var(--pcbai-font);
}
.pcbai-upload-zone p {
  font-size: 14px;
  color: var(--pcbai-text-light);
  margin: 0 0 6px;
}
.pcbai-upload-limit {
  display: inline-block;
  background: var(--pcbai-green-light);
  border: 1px solid var(--pcbai-green-mid);
  color: var(--pcbai-green-dark);
  font-size: 14px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 20px;
  margin-top: 6px;
}
.pcbai-upload-btn-label {
  display: inline-block;
  background: var(--pcbai-green);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 24px;
  border-radius: 6px;
  margin-top: 14px;
  cursor: pointer;
  transition: background 0.2s;
}
.pcbai-upload-btn-label:hover { background: var(--pcbai-green-dark); }
#pcbai-file-input { display: none; }
.pcbai-file-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.pcbai-file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--pcbai-green-light);
  border: 1px solid var(--pcbai-green-mid);
  border-radius: 6px;
  padding: 8px 12px;
}
.pcbai-file-item-icon {
  width: 28px;
  height: 28px;
  background: var(--pcbai-green);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.pcbai-file-item-icon svg {
  fill: #fff;
  width: 14px;
  height: 14px;
}
.pcbai-file-name {
  flex: 1;
  font-size: 14px;
  color: var(--pcbai-text-dark);
  font-weight: 500;
  word-break: break-all;
}
.pcbai-file-size {
  font-size: 13px;
  color: var(--pcbai-text-light);
  flex-shrink: 0;
}
.pcbai-file-remove {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: rgba(255,77,79,0.12);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
  padding: 0;
}
.pcbai-file-remove:hover { background: rgba(255,77,79,0.25); }
.pcbai-file-remove svg {
  fill: #e03535;
  width: 10px;
  height: 10px;
}

/* ── FORM ELEMENTS ─────────────────────────────────────────────────────────── */
.pcbai-form-grid {
  display: grid;
  gap: 18px;
}
.pcbai-grid-2 { grid-template-columns: 1fr 1fr; }
.pcbai-grid-3 { grid-template-columns: 1fr 1fr 1fr; }

.pcbai-form-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.pcbai-form-group.pcbai-span2 { grid-column: span 2; }
.pcbai-form-group.pcbai-span3 { grid-column: span 3; }
#pcbai-country-custom-wrap input { margin-top: 0; }

.pcbai-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--pcbai-text-mid);
  display: flex;
  align-items: center;
  gap: 5px;
}
.pcbai-required {
  color: #e03535;
  font-size: 15px;
  line-height: 1;
}
.pcbai-tip {
  width: 15px;
  height: 15px;
  background: var(--pcbai-green-mid);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--pcbai-green-dark);
  cursor: help;
  flex-shrink: 0;
  position: relative;
}
.pcbai-tip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0,30,15,0.9);
  color: #fff;
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 5px;
  white-space: nowrap;
  z-index: 9999;
  max-width: 220px;
  white-space: normal;
  text-align: center;
  font-weight: 400;
}

.pcbai-wrap input[type="text"],
.pcbai-wrap input[type="number"],
.pcbai-wrap input[type="email"],
.pcbai-wrap select,
.pcbai-wrap textarea {
  width: 100%;
  padding: 9px 13px;
  border: 1.5px solid var(--pcbai-border);
  border-radius: var(--pcbai-radius);
  font-family: var(--pcbai-font);
  font-size: 16px;
  color: var(--pcbai-text-dark);
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  margin: 0;
  box-shadow: none;
}
.pcbai-wrap input[type="text"]:focus,
.pcbai-wrap input[type="number"]:focus,
.pcbai-wrap input[type="email"]:focus,
.pcbai-wrap select:focus,
.pcbai-wrap textarea:focus {
  border-color: var(--pcbai-green);
  box-shadow: 0 0 0 3px var(--pcbai-green-glow);
}
.pcbai-wrap select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2300a651' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 11px center;
  padding-right: 34px;
  cursor: pointer;
}
.pcbai-wrap textarea { resize: vertical; min-height: 90px; }
.pcbai-wrap input[type="number"] { -moz-appearance: textfield; }
.pcbai-wrap input[type="number"]::-webkit-outer-spin-button,
.pcbai-wrap input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }

.pcbai-input-unit {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--pcbai-border);
  border-radius: var(--pcbai-radius);
  overflow: hidden;
  background: #fff;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.pcbai-input-unit:focus-within {
  border-color: var(--pcbai-green);
  box-shadow: 0 0 0 3px var(--pcbai-green-glow);
}
.pcbai-input-unit input {
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  flex: 1;
  min-width: 0;
}
.pcbai-unit-label {
  background: var(--pcbai-bg-section);
  padding: 9px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--pcbai-text-light);
  border-left: 1px solid var(--pcbai-border);
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* ── BUTTON GROUPS ─────────────────────────────────────────────────────────── */
.pcbai-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.pcbai-btn-opt {
  padding: 7px 15px;
  border: 1.5px solid var(--pcbai-border);
  border-radius: 6px;
  background: #fff;
  color: var(--pcbai-text-mid);
  font-family: var(--pcbai-font);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.18s;
  white-space: nowrap;
}
.pcbai-btn-opt:hover {
  border-color: var(--pcbai-green);
  color: var(--pcbai-green);
  background: var(--pcbai-green-light);
}
.pcbai-btn-opt.pcbai-active {
  border-color: var(--pcbai-green);
  background: var(--pcbai-green);
  color: #fff;
  box-shadow: 0 2px 8px var(--pcbai-green-glow);
}

/* ── SUPPLY CARDS ─────────────────────────────────────────────────────────── */
.pcbai-supply-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.pcbai-supply-card {
  border: 2px solid var(--pcbai-border);
  border-radius: var(--pcbai-radius);
  padding: 16px 12px;
  cursor: pointer;
  transition: all 0.2s;
  background: #fff;
  text-align: center;
}
.pcbai-supply-card:hover {
  border-color: var(--pcbai-green);
  background: var(--pcbai-green-light);
}
.pcbai-supply-card.pcbai-active {
  border-color: var(--pcbai-green);
  background: linear-gradient(135deg, var(--pcbai-green-light), #fff);
  box-shadow: 0 4px 16px var(--pcbai-green-glow);
}
.pcbai-sc-icon {
  width: 36px;
  height: 36px;
  background: var(--pcbai-bg-section);
  border: 1px solid var(--pcbai-border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 10px;
  transition: background 0.2s;
}
.pcbai-sc-icon svg {
  fill: var(--pcbai-green-dark);
  width: 18px;
  height: 18px;
}
.pcbai-supply-card.pcbai-active .pcbai-sc-icon {
  background: var(--pcbai-green);
  border-color: var(--pcbai-green);
}
.pcbai-supply-card.pcbai-active .pcbai-sc-icon svg { fill: #fff; }
.pcbai-sc-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--pcbai-text-dark);
  margin-bottom: 4px;
}
.pcbai-supply-card.pcbai-active .pcbai-sc-title { color: var(--pcbai-green-dark); }
.pcbai-sc-desc {
  font-size: 13px;
  color: var(--pcbai-text-light);
  line-height: 1.4;
}
.pcbai-sc-check {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--pcbai-border);
  margin: 10px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.pcbai-supply-card.pcbai-active .pcbai-sc-check {
  background: var(--pcbai-green);
  border-color: var(--pcbai-green);
}
.pcbai-supply-card.pcbai-active .pcbai-sc-check::after {
  content: '';
  display: block;
  width: 8px;
  height: 5px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg) translateY(-1px);
}

/* ── TOGGLE ROWS ─────────────────────────────────────────────────────────── */
.pcbai-toggle-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.pcbai-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 13px;
  background: var(--pcbai-bg-section);
  border-radius: var(--pcbai-radius);
  border: 1px solid var(--pcbai-border);
  gap: 8px;
}
.pcbai-toggle-label {
  font-size: 14px;
  color: var(--pcbai-text-mid);
  font-weight: 500;
  flex: 1;
}
.pcbai-toggle-btns { display: flex; gap: 5px; flex-shrink: 0; }
.pcbai-toggle-btn {
  padding: 4px 12px;
  border: 1.5px solid var(--pcbai-border);
  border-radius: 4px;
  background: #fff;
  color: #888;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s;
  font-family: var(--pcbai-font);
}
.pcbai-toggle-btn:hover { border-color: var(--pcbai-green); color: var(--pcbai-green); }
.pcbai-toggle-btn.pcbai-yes {
  background: var(--pcbai-green);
  border-color: var(--pcbai-green);
  color: #fff;
}
.pcbai-toggle-btn.pcbai-no {
  background: #00a651;
  border-color: #00a651;
  color: #fff;
}

/* ── PARTS GRID ─────────────────────────────────────────────────────────── */
.pcbai-parts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.pcbai-part-box {
  background: var(--pcbai-bg-section);
  border: 1px solid var(--pcbai-border);
  border-radius: var(--pcbai-radius);
  padding: 14px 10px;
  text-align: center;
}
.pcbai-part-box-icon {
  width: 34px;
  height: 34px;
  background: var(--pcbai-green-light);
  border: 1px solid var(--pcbai-green-mid);
  border-radius: 6px;
  margin: 0 auto 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.pcbai-part-box-icon svg {
  fill: var(--pcbai-green-dark);
  width: 18px;
  height: 18px;
}
.pcbai-part-box label {
  display: block;
  font-size: 13px;
  color: var(--pcbai-text-light);
  font-weight: 600;
  margin-bottom: 7px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.pcbai-part-box input { text-align: center; font-weight: 600; }

/* ── SECTION DIVIDER ─────────────────────────────────────────────────────── */
.pcbai-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 14px;
}
.pcbai-divider span {
  font-size: 14px;
  font-weight: 700;
  color: var(--pcbai-green-dark);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.pcbai-divider::before,
.pcbai-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--pcbai-green-mid);
}

/* ── NOTE BOX ─────────────────────────────────────────────────────────────── */
.pcbai-note {
  background: #fffbe6;
  border: 1px solid #ffe58f;
  border-radius: var(--pcbai-radius);
  padding: 11px 15px;
  font-size: 14px;
  color: #7c5e00;
  line-height: 1.6;
  margin-top: 12px;
  display: flex;
  align-items: flex-start;
  gap: 9px;
}
.pcbai-note-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 1px;
  fill: #c68a00;
}

/* ── SUBMIT BAR ───────────────────────────────────────────────────────────── */
.pcbai-submit-bar {
  background: linear-gradient(135deg, var(--pcbai-green-deeper), var(--pcbai-green-dark));
  border-radius: var(--pcbai-radius-lg);
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 4px;
}
.pcbai-agree-wrap { flex: 1; }
.pcbai-agree-check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin-bottom: 8px;
}
.pcbai-agree-check input[type="checkbox"] {
  width: 15px;
  height: 15px;
  margin-top: 2px;
  accent-color: var(--pcbai-green-accent);
  flex-shrink: 0;
  border: none;
  box-shadow: none;
  padding: 0;
}
.pcbai-agree-check label {
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  cursor: pointer;
  line-height: 1.5;
}
.pcbai-agree-check label a { color: var(--pcbai-green-accent); }
.pcbai-agree-note {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  line-height: 1.5;
}
.pcbai-submit-btn {
  padding: 13px 36px;
  background: linear-gradient(135deg, var(--pcbai-green-accent), var(--pcbai-green));
  color: #fff;
  border: none;
  border-radius: 8px;
  font-family: var(--pcbai-font);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.22s;
  box-shadow: 0 4px 20px rgba(0,192,96,0.38);
  white-space: nowrap;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.pcbai-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,192,96,0.5);
}
.pcbai-submit-btn svg { fill: #fff; width: 18px; height: 18px; }

/* ── SIDEBAR ─────────────────────────────────────────────────────────────── */
.pcbai-sidebar { position: sticky; top: 24px; }
.pcbai-summary-card {
  background: var(--pcbai-bg-card);
  border-radius: var(--pcbai-radius-lg);
  border: 1px solid var(--pcbai-border);
  box-shadow: var(--pcbai-shadow-md);
  overflow: hidden;
}
.pcbai-summary-head {
  background: linear-gradient(135deg, var(--pcbai-green-dark), var(--pcbai-green-deeper));
  padding: 16px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.pcbai-summary-head svg { fill: #fff; width: 20px; height: 20px; }
.pcbai-summary-head h3 {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  margin: 0;
  letter-spacing: 0.3px;
}
.pcbai-summary-body { padding: 18px; }
.pcbai-sum-section { margin-bottom: 16px; }
.pcbai-sum-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--pcbai-green);
  border-bottom: 1px solid var(--pcbai-green-mid);
  padding-bottom: 5px;
  margin-bottom: 8px;
}
.pcbai-sum-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 6px;
  padding: 4px 0;
  border-bottom: 1px dashed var(--pcbai-border);
}
.pcbai-sum-row:last-child { border-bottom: none; }
.pcbai-sum-key {
  font-size: 14px;
  color: var(--pcbai-text-light);
  flex-shrink: 0;
  max-width: 100px;
}
.pcbai-sum-val {
  font-size: 14px;
  font-weight: 600;
  color: var(--pcbai-text-dark);
  text-align: right;
  word-break: break-all;
}
.pcbai-sum-val.pcbai-filled { color: var(--pcbai-green); }
em.pcbai-empty {
  font-style: italic;
  font-weight: 400;
  color: #ccc;
  font-size: 14px;
}
.pcbai-feat-tags { display: flex; flex-wrap: wrap; gap: 4px; }
.pcbai-feat-tag {
  background: var(--pcbai-green-light);
  border: 1px solid var(--pcbai-green-mid);
  color: var(--pcbai-green-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
}
.pcbai-help-box {
  background: var(--pcbai-bg-section);
  border: 1px solid var(--pcbai-border);
  border-radius: var(--pcbai-radius);
  padding: 13px;
  margin-top: 14px;
  font-size: 14px;
  color: var(--pcbai-text-light);
  line-height: 1.6;
}
.pcbai-help-box strong { color: var(--pcbai-green-dark); }
.pcbai-help-box a { color: var(--pcbai-green); text-decoration: none; }
.pcbai-help-box a:hover { text-decoration: underline; }

.pcbai-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.52);
  z-index: 99999;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.pcbai-modal-overlay.pcbai-show { display: flex; }
.pcbai-modal-box {
  background: #ffffff;
  border-radius: 12px;
  border: 1px solid #e0e0e0;
  width: 100%;
  max-width: 460px;
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  animation: pcbaiModalIn 0.28s ease;
}
@keyframes pcbaiModalIn {
  from { transform: scale(0.88) translateY(12px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}
.pcbai-modal-header {
  background: #00a651;
  padding: 32px 28px 24px;
  text-align: center;
  position: relative;
}
.pcbai-modal-close-x {
  position: absolute;
  top: 12px; right: 12px;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  border: 1px solid rgba(255,255,255,0.35);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  padding: 0;
  color: #ffffff;
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  transition: background 0.18s;
}
.pcbai-modal-close-x:hover { background: rgba(255,255,255,0.32); }
.pcbai-modal-check {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: rgba(255,255,255,0.18);
  border: 2px solid rgba(255,255,255,0.5);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}
.pcbai-modal-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.2px;
}
.pcbai-modal-subtitle {
  margin: 7px 0 0;
  font-size: 14px;
  color: rgba(255,255,255,0.78);
  font-weight: 400;
}
.pcbai-modal-body { padding: 24px 28px 28px; }
.pcbai-modal-msg {
  margin: 0 0 20px;
  font-size: 16px;
  color: #4a5568;
  line-height: 1.65;
  font-weight: 400;
}
.pcbai-modal-msg strong { color: #007a3d; font-weight: 600; }
.pcbai-modal-steps { display: flex; flex-direction: column; gap: 14px; margin-bottom: 24px; }
.pcbai-modal-step { display: flex; align-items: flex-start; gap: 12px; }
.pcbai-step-dot {
  width: 32px; height: 32px;
  flex-shrink: 0;
  border-radius: 50%;
  background: #e8f5ee;
  border: 1px solid #c5e8d5;
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.pcbai-step-title {
  margin: 0 0 3px;
  font-size: 14px;
  font-weight: 600;
  color: #1a202c;
}
.pcbai-step-desc {
  margin: 0;
  font-size: 14px;
  color: #718096;
  line-height: 1.55;
  font-weight: 400;
}
.pcbai-modal-divider { border-top: 1px solid #e8edf2; margin-bottom: 20px; }
.pcbai-modal-close-btn {
  width: 100%;
  padding: 12px;
  border-radius: 8px;
  background: #00a651;
  border: none;
  cursor: pointer;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.3px;
  transition: background 0.2s;
}
.pcbai-modal-close-btn:hover { background: #007a3d; }

/* ── NOTICE ─────────────────────────────────────────────────────────────── */
.pcbai-notice {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 14px;
  display: none;
}
.pcbai-notice.pcbai-error {
  background: #fff2f2;
  border: 1px solid #ffccc7;
  color: #cf1322;
  display: block;
}
.pcbai-notice.pcbai-success {
  background: var(--pcbai-green-light);
  border: 1px solid var(--pcbai-green-mid);
  color: var(--pcbai-green-deeper);
  display: block;
}

/* ── RESPONSIVE ─────────────────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .pcbai-main-layout {
    grid-template-columns: 1fr;
  }
  .pcbai-sidebar { position: static; }
  .pcbai-supply-cards { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 700px) {
  .pcbai-grid-2,
  .pcbai-grid-3,
  .pcbai-contact-grid { grid-template-columns: 1fr; }
  .pcbai-supply-cards  { grid-template-columns: 1fr 1fr; }
  .pcbai-parts-grid    { grid-template-columns: 1fr 1fr; }
  .pcbai-toggle-grid   { grid-template-columns: 1fr; }
  .pcbai-submit-bar    { flex-direction: column; }
  .pcbai-wrap          { padding: 16px 12px 40px; }
  .pcbai-page-header   { padding: 24px 20px; }
  .pcbai-page-header h1 { font-size: 22px; }
  .pcbai-step-sep      { width: 20px; }
}