/* ═══════════════════════════════════════════════════════════
   PCB Quote Manager Pro — Frontend Styles
   Inspired by JLCPCB/ALLPCB — clean, industrial, precise
═══════════════════════════════════════════════════════════ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --pcbq-blue:     #0f4c81;
  --pcbq-blue-lt:  #1a6bb5;
  --pcbq-teal:     #00b5a3;
  --pcbq-teal-dk:  #009688;
  --pcbq-navy:     #1a2e4a;
  --pcbq-text:     #1e293b;
  --pcbq-muted:    #64748b;
  --pcbq-light:    #f1f5f9;
  --pcbq-border:   #e2e8f0;
  --pcbq-white:    #ffffff;
  --pcbq-bg:       #f8fafc;
  --pcbq-error:    #ef4444;
  --pcbq-r:        6px;
  --pcbq-font:     'Inter', -apple-system, sans-serif;
}

.pcbq-app *, .pcbq-app *::before, .pcbq-app *::after { box-sizing:border-box; margin:0; padding:0; }
.pcbq-app {
  font-family: var(--pcbq-font);
  color: var(--pcbq-text);
  font-size: 14px;
  line-height: 1.5;
  background: var(--pcbq-bg);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--pcbq-border);
  box-shadow: 0 2px 16px rgba(0,0,0,.07);
}

/* ── Product Tabs ──────────────────────────────────────── */
.pcbq-product-tabs {
  display: flex;
  overflow-x: auto;
  background: var(--pcbq-white);
  border-bottom: 1px solid var(--pcbq-border);
  padding: 0 4px;
  scrollbar-width: none;
  gap: 2px;
}
.pcbq-product-tabs::-webkit-scrollbar { display:none; }

.pcbq-prod-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px 16px 12px;
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-family: var(--pcbq-font);
  font-size: 12px;
  font-weight: 500;
  color: var(--pcbq-muted);
  white-space: nowrap;
  transition: all .18s;
  min-width: 80px;
}
.pcbq-prod-tab:hover { color: var(--pcbq-blue); background: var(--pcbq-light); }
.pcbq-prod-tab.active {
  color: var(--pcbq-blue);
  border-bottom-color: var(--pcbq-blue);
  font-weight: 700;
  background: #f0f6ff;
}
.pcbq-prod-icon { font-size: 22px; line-height: 1; }
.pcbq-prod-name { font-size: 11px; }

/* ── Main Layout ──────────────────────────────────────── */
.pcbq-main-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 0;
  min-height: 400px;
}
@media (max-width: 720px) { .pcbq-main-layout { grid-template-columns: 1fr; } }

.pcbq-form-col {
  background: var(--pcbq-white);
  border-right: 1px solid var(--pcbq-border);
}

/* ── Sections ─────────────────────────────────────────── */
.pcbq-section {
  border-bottom: 1px solid var(--pcbq-border);
}
.pcbq-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: var(--pcbq-light);
  font-weight: 700;
  font-size: 13px;
  color: var(--pcbq-navy);
  text-transform: uppercase;
  letter-spacing: .04em;
}
.pcbq-toggle-section { cursor: pointer; user-select: none; }
.pcbq-toggle-section:hover { background: #e8edf3; }
.pcbq-chevron { transition: transform .2s; flex-shrink: 0; }
.pcbq-collapsed .pcbq-chevron { transform: rotate(180deg); }

.pcbq-section-body { padding: 4px 0; }

/* ── Field Rows ───────────────────────────────────────── */
.pcbq-field-row-form {
  display: flex;
  align-items: flex-start;
  padding: 12px 20px;
  gap: 16px;
  border-bottom: 1px solid #f1f5f9;
}
.pcbq-field-row-form:last-child { border-bottom: none; }

.pcbq-field-lbl {
  width: 160px;
  flex-shrink: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--pcbq-text);
  padding-top: 6px;
}
.pcbq-help {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 15px;
  height: 15px;
  background: var(--pcbq-muted);
  color: #fff;
  border-radius: 50%;
  font-size: 9px;
  font-weight: 700;
  cursor: help;
  margin-left: 4px;
  vertical-align: middle;
}

/* ── Option Buttons ───────────────────────────────────── */
.pcbq-opts-row, .pcbq-opts-wrap { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

.pcbq-opt {
  padding: 6px 14px;
  background: var(--pcbq-white);
  border: 1.5px solid var(--pcbq-border);
  border-radius: 5px;
  font-family: var(--pcbq-font);
  font-size: 13px;
  font-weight: 500;
  color: var(--pcbq-text);
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  gap: 5px;
}
.pcbq-opt:hover { border-color: var(--pcbq-blue); color: var(--pcbq-blue); background: #f0f6ff; }
.pcbq-opt.active {
  border-color: var(--pcbq-blue);
  color: var(--pcbq-blue);
  background: #e8f0fb;
  font-weight: 700;
  position: relative;
}
.pcbq-opt.active::after {
  content: '✓';
  position: absolute;
  bottom: -1px;
  right: 2px;
  font-size: 8px;
  color: var(--pcbq-blue);
  font-weight: 900;
}
.pcbq-mat-icon { font-size: 14px; }

/* ── Color Row ────────────────────────────────────────── */
.pcbq-color-row { display: flex; flex-wrap: wrap; gap: 6px; }
.pcbq-color-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  background: var(--pcbq-white);
  border: 1.5px solid var(--pcbq-border);
  border-radius: 5px;
  font-family: var(--pcbq-font);
  font-size: 13px;
  font-weight: 500;
  color: #1e293b;        /* always dark text — never inherited */
  cursor: pointer;
  transition: all .15s;
  white-space: nowrap;
}
.pcbq-color-btn:hover {
  border-color: var(--pcbq-blue);
  color: #1e293b;
  background: #f0f6ff;
}
.pcbq-color-btn.active {
  border-color: var(--pcbq-blue);
  background: #e8f0fb;
  font-weight: 700;
  color: #1e293b;        /* keep text dark even when active */
}
/* The color name label inside the button */
.pcbq-color-btn .pcbq-color-label {
  color: #1e293b !important;
  font-size: 13px;
  font-weight: 500;
  display: inline-block;
}
.pcbq-color-swatch {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.15);
}

/* ── Dimensions ───────────────────────────────────────── */
.pcbq-dim-row { display: flex; align-items: center; gap: 8px; }
.pcbq-dim-in {
  width: 90px;
  padding: 7px 10px;
  border: 1.5px solid var(--pcbq-border);
  border-radius: 5px;
  font-family: var(--pcbq-font);
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  transition: border-color .15s;
}
.pcbq-dim-in:focus { outline:none; border-color: var(--pcbq-blue); }
.pcbq-dim-x { font-size: 16px; color: var(--pcbq-muted); font-weight: 700; }
.pcbq-dim-unit {
  padding: 7px 10px;
  border: 1.5px solid var(--pcbq-border);
  border-radius: 5px;
  font-family: var(--pcbq-font);
  font-size: 13px;
  background: var(--pcbq-light);
}

/* ── Quantity ─────────────────────────────────────────── */
.pcbq-qty-wrap { display: flex; align-items: center; gap: 8px; }
.pcbq-qty-sel {
  padding: 7px 12px;
  border: 1.5px solid var(--pcbq-border);
  border-radius: 5px;
  font-family: var(--pcbq-font);
  font-size: 14px;
  font-weight: 600;
  background: var(--pcbq-white);
  cursor: pointer;
}
.pcbq-qty-hint { font-size: 13px; color: var(--pcbq-muted); }

/* ── Upload Zone ──────────────────────────────────────── */
.pcbq-upload-zone {
  margin: 14px 20px;
  border: 2px dashed #93c5fd;
  border-radius: 10px;
  background: #f0f6ff;
  padding: 24px 20px;
  cursor: pointer;
  transition: all .2s;
  position: relative;
}
.pcbq-upload-zone:hover, .pcbq-upload-zone.drag-over {
  background: #e0edff;
  border-color: var(--pcbq-blue);
}
.pcbq-upload-zone input[type=file] {
  position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer;
}
.pcbq-upload-body { display: flex; align-items: center; gap: 16px; }
.pcbq-upload-icon-wrap {
  width: 60px; height: 60px; background: var(--pcbq-white);
  border-radius: 12px; display: flex; align-items: center; justify-content: center;
  box-shadow: 0 2px 8px rgba(15,76,129,.15); flex-shrink: 0;
}
.pcbq-upload-title { font-size: 16px; font-weight: 700; color: var(--pcbq-navy); margin-bottom: 4px; }
.pcbq-upload-hint { font-size: 12px; color: var(--pcbq-muted); margin-bottom: 4px; }
.pcbq-upload-hint a { color: var(--pcbq-blue); text-decoration: none; }
.pcbq-upload-secure { font-size: 11px; color: var(--pcbq-muted); display: flex; align-items: center; gap: 4px; }
.pcbq-file-name {
  margin-top: 10px;
  padding: 8px 12px;
  background: var(--pcbq-white);
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--pcbq-blue);
  border: 1px solid #93c5fd;
}

/* ── Yes/No rows ──────────────────────────────────────── */
.pcbq-yn-row .pcbq-opt { min-width: 54px; justify-content: center; }

/* ── Textarea ─────────────────────────────────────────── */
.pcbq-textarea {
  width: 100%;
  margin: 10px 20px;
  width: calc(100% - 40px);
  padding: 12px;
  border: 1.5px solid var(--pcbq-border);
  border-radius: var(--pcbq-r);
  font-family: var(--pcbq-font);
  font-size: 13px;
  resize: vertical;
  transition: border-color .15s;
}
.pcbq-textarea:focus { outline:none; border-color: var(--pcbq-blue); }

/* ── Contact Section ──────────────────────────────────── */
.pcbq-contact-section .pcbq-section-body { padding: 16px 20px; }
.pcbq-contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 20px; }
@media (max-width: 500px) { .pcbq-contact-grid { grid-template-columns: 1fr; } }
.pcbq-clabel { display: block; font-size: 12px; font-weight: 600; color: var(--pcbq-muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 5px; }
.pcbq-req { color: var(--pcbq-error); }
.pcbq-cinput {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--pcbq-border);
  border-radius: var(--pcbq-r);
  font-family: var(--pcbq-font);
  font-size: 14px;
  transition: border-color .15s, box-shadow .15s;
}
.pcbq-cinput:focus { outline:none; border-color: var(--pcbq-blue); box-shadow: 0 0 0 3px rgba(15,76,129,.08); }
.pcbq-cinput.err { border-color: var(--pcbq-error); }

.pcbq-submit-btn {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  width: 100%; padding: 14px 24px;
  background: linear-gradient(135deg, var(--pcbq-blue), #1a6bb5);
  color: #fff; border: none; border-radius: 8px;
  font-family: var(--pcbq-font); font-size: 15px; font-weight: 700;
  cursor: pointer; transition: all .2s;
  box-shadow: 0 4px 14px rgba(15,76,129,.3);
}
.pcbq-submit-btn:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(15,76,129,.4); }
.pcbq-submit-btn:disabled { opacity: .65; cursor: not-allowed; transform: none; }

.pcbq-privacy { font-size: 11px; color: var(--pcbq-muted); text-align:center; margin-top:10px; }

/* ── Right Sidebar ────────────────────────────────────── */
.pcbq-sidebar-col { background: #fafcff; padding: 16px; }
.pcbq-sidebar-card {
  background: var(--pcbq-white);
  border: 1px solid var(--pcbq-border);
  border-radius: 10px;
  overflow: hidden;
  position: sticky;
  top: 20px;
}
.pcbq-sidebar-head {
  background: var(--pcbq-navy);
  color: #fff; font-size: 14px; font-weight: 700;
  padding: 14px 16px;
}
.pcbq-charge-rows { padding: 10px 16px; }
.pcbq-charge-row { display: flex; justify-content: space-between; padding: 6px 0; font-size: 13px; color: var(--pcbq-text); border-bottom: 1px solid #f1f5f9; }
.pcbq-charge-row:last-child { border-bottom: none; }
.pcbq-charge-val { font-weight: 700; color: var(--pcbq-teal); }
.pcbq-sidebar-divider { height: 1px; background: var(--pcbq-border); margin: 2px 0; }
.pcbq-build-time-head { padding: 10px 16px 6px; font-size: 12px; font-weight: 700; color: var(--pcbq-navy); text-transform: uppercase; letter-spacing: .05em; }
.pcbq-build-options { padding: 4px 16px 10px; display:flex; flex-direction:column; gap:6px; }
.pcbq-build-opt { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.pcbq-build-opt input { accent-color: var(--pcbq-blue); }
.pcbq-bt-days { font-size: 11px; color: var(--pcbq-muted); }
.pcbq-bt-price { margin-left: auto; font-size: 12px; color: var(--pcbq-muted); font-style: italic; }

.pcbq-price-note {
  margin: 8px 12px;
  padding: 10px 12px;
  background: #f0f6ff;
  border-radius: 8px;
  font-size: 11px;
  color: var(--pcbq-blue);
  line-height: 1.5;
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.pcbq-summary-preview { padding: 12px 16px; border-top: 1px solid var(--pcbq-border); }
.pcbq-sum-head { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--pcbq-muted); margin-bottom: 8px; }
.pcbq-sum-row { display: flex; justify-content: space-between; font-size: 12px; padding: 4px 0; border-bottom: 1px solid #f1f5f9; }
.pcbq-sum-row:last-child { border:none; }
.pcbq-sum-row span:first-child { color: var(--pcbq-muted); }
.pcbq-sum-row span:last-child  { font-weight: 700; color: var(--pcbq-text); }

/* ── Success Screen ───────────────────────────────────── */
.pcbq-success {
  padding: 60px 32px; text-align: center;
  background: var(--pcbq-white);
}
.pcbq-success-icon { font-size: 54px; margin-bottom: 16px; }
.pcbq-success h2 { font-size: 24px; font-weight: 800; color: var(--pcbq-navy); margin-bottom: 12px; }
.pcbq-success p  { font-size: 15px; color: var(--pcbq-muted); max-width: 440px; margin: 0 auto; }

/* ── Toast ────────────────────────────────────────────── */
.pcbq-toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: #1e293b; color: #fff;
  padding: 13px 20px; border-radius: 8px;
  display: flex; align-items: center; gap: 14px;
  font-size: 14px; font-weight: 500;
  box-shadow: 0 8px 32px rgba(0,0,0,.2);
  z-index: 99999; max-width: 90vw;
  animation: pcbq-toast-in .3s ease;
}
@keyframes pcbq-toast-in { from{opacity:0;transform:translateX(-50%) translateY(16px)} to{opacity:1;transform:translateX(-50%) translateY(0)} }
#pcbq-toast-close { background:none;border:none;color:#fff;font-size:20px;cursor:pointer;line-height:1;flex-shrink:0; }