/* =====================================================================
   ARCHER AUTOMATION — VALVE AUTOMATION TECHNICAL HANDBOOK
   Front-end stylesheet. All selectors are scoped under .aa-faq-page
   (or use the .aa-faq- prefix) to avoid collisions with theme/Elementor.
   ===================================================================== */

.aa-faq-page {
  --aa-navy:      #0c1b3a;
  --aa-navy2:     #162040;
  --aa-blue:      #1a6fc4;
  --aa-blue-lt:   #2f8de0;
  --aa-orange:    #d4621a;
  --aa-green:     #4a7c3f;
  --aa-amber:     #c47a1a;
  --aa-red:       #b91c1c;
  --aa-light:     #f4f7fb;
  --aa-lighter:   #eef3fa;
  --aa-border:    #d1dcea;
  --aa-text:      #1a2540;
  --aa-muted:     #5a6a87;
  --aa-white:     #ffffff;
  --aa-grad:      linear-gradient(135deg, #0c1b3a 0%, #162c58 50%, #1a3570 100%);
  --aa-grad-blue: linear-gradient(90deg, #1a6fc4 0%, #2f8de0 100%);
  --aa-shadow:    0 4px 24px rgba(12,27,58,0.12);
  --aa-radius:    6px;
  --aa-radius-lg: 12px;
  --aa-font-h:    'Barlow Condensed', 'Barlow', sans-serif;
  --aa-font-b:    'Source Sans 3', 'Barlow', sans-serif;

  font-family: var(--aa-font-b);
  color: var(--aa-text);
  line-height: 1.6;
}

.aa-faq-page *,
.aa-faq-page *::before,
.aa-faq-page *::after { box-sizing: border-box; }

.aa-faq-page h1,
.aa-faq-page h2,
.aa-faq-page h3,
.aa-faq-page h4 { font-family: var(--aa-font-h); line-height: 1.2; }
.aa-faq-page a { color: var(--aa-blue); text-decoration: none; }
.aa-faq-page a:hover { text-decoration: underline; }
.aa-faq-page p { margin: 0 0 1em; }
.aa-faq-page ul,
.aa-faq-page ol { padding-left: 1.4em; margin: 0 0 1em; }
.aa-faq-page li { margin-bottom: 0.35em; }
.aa-faq-page strong { font-weight: 700; }
.aa-faq-page code { background:#e8f0fa; border-radius:3px; padding:0 4px; font-family:monospace; font-size:.9em; }

/* ── HERO ── */
.aa-faq-hero {
  background: var(--aa-grad);
  padding: 72px 24px 56px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.aa-faq-hero::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='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%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/g%3E%3C/svg%3E");
  pointer-events:none;
}
.aa-faq-hero-inner { max-width:900px; margin:0 auto; position:relative; }
.aa-faq-hero-eyebrow {
  font-family: var(--aa-font-h);
  font-size: 0.95rem; font-weight: 700;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: #64b3f4; margin-bottom: 18px;
}
.aa-faq-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--aa-white);
  margin: 0 0 16px;
  letter-spacing: -0.5px;
}
.aa-faq-hero h1 span { color: #64b3f4; }
.aa-faq-hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 680px;
  margin: 0 auto 28px;
  font-family: var(--aa-font-b);
}
.aa-faq-hero-pills {
  display: flex; flex-wrap: wrap; gap: 10px;
  justify-content: center; margin-bottom: 28px;
}
.aa-faq-hero-pill {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  padding: 5px 14px; border-radius: 20px;
  font-size: 0.82rem; font-weight: 600;
  font-family: var(--aa-font-b); letter-spacing: 0.02em;
}
.aa-faq-hero-standards {
  font-size: 0.78rem; color: rgba(255,255,255,0.45); letter-spacing: 0.02em;
}

/* ── SEARCH ── */
.aa-faq-search-wrap {
  max-width: 600px; margin: -22px auto 0;
  padding: 0 24px; position: relative; z-index: 10;
}
.aa-faq-search {
  width: 100%; padding: 14px 50px 14px 20px;
  border-radius: 32px; border: 2px solid var(--aa-border);
  font-size: 0.97rem; font-family: var(--aa-font-b);
  box-shadow: var(--aa-shadow); background: #fff; color: var(--aa-text); outline: none;
}
.aa-faq-search:focus { border-color: var(--aa-blue); }
.aa-faq-search-icon {
  position: absolute; right: 38px; top: 50%;
  transform: translateY(-50%); color: var(--aa-muted); pointer-events: none;
}
.aa-faq-search-none {
  display: none; text-align: center; padding: 40px 20px;
  color: var(--aa-muted); font-style: italic;
}

/* ── CHAPTER NAV ── */
.aa-faq-chapnav-wrap {
  background: var(--aa-navy);
  position: sticky; top: 0; z-index: 100;
  box-shadow: 0 2px 16px rgba(0,0,0,0.35);
  margin-top: 24px;
}
.aa-faq-chapnav {
  max-width: 1200px; margin: 0 auto; display: flex;
  overflow-x: auto; scrollbar-width: none; gap: 2px; padding: 0 12px;
}
.aa-faq-chapnav::-webkit-scrollbar { display:none; }
.aa-faq-chapbtn {
  flex: 0 0 auto; padding: 14px 18px;
  font-family: var(--aa-font-h); font-size: 0.8rem; font-weight: 700;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: rgba(255,255,255,0.6); background: transparent; border: none;
  border-bottom: 3px solid transparent; cursor: pointer;
  transition: color .2s, border-color .2s; white-space: nowrap;
}
.aa-faq-chapbtn:hover,
.aa-faq-chapbtn.active { color: #64b3f4; border-bottom-color: #64b3f4; }

/* ── LAYOUT ── */
.aa-faq-main { max-width: 1100px; margin: 0 auto; padding: 0 24px 80px; }

/* ── CHAPTER ── */
.aa-faq-chapter { margin-top: 64px; scroll-margin-top: 56px; }
.aa-faq-chapter-header {
  background: var(--aa-grad);
  border-radius: var(--aa-radius-lg) var(--aa-radius-lg) 0 0;
  padding: 28px 32px 24px; position: relative; overflow: hidden;
}
.aa-faq-chapter-header::after {
  content:''; position:absolute; right:-20px; top:-20px;
  width:120px; height:120px; border-radius:50%;
  background: rgba(255,255,255,0.04); pointer-events:none;
}
.aa-faq-chapter-num {
  font-family: var(--aa-font-h); font-size: 0.72rem; font-weight: 700;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(100,179,244,0.8); margin-bottom: 6px;
}
.aa-faq-chapter-title {
  font-size: clamp(1.25rem, 3vw, 1.7rem); font-weight: 800;
  color: var(--aa-white); margin: 0; letter-spacing: -0.2px;
}
.aa-faq-chapter-body {
  border: 1px solid var(--aa-border); border-top: none;
  border-radius: 0 0 var(--aa-radius-lg) var(--aa-radius-lg);
  overflow: hidden; background: var(--aa-white);
}
.aa-faq-chapter-intro {
  padding: 20px 28px 0; font-size: 0.95rem; color: var(--aa-muted);
  font-style: italic; border-bottom: 1px solid var(--aa-border); line-height: 1.65;
}
.aa-faq-chapter-intro p { margin: 0 0 16px; }

/* ── ACCORDION ── */
.aa-faq-item { border-bottom: 1px solid var(--aa-border); }
.aa-faq-item:last-child { border-bottom: none; }
.aa-faq-question {
  display: flex; align-items: center; gap: 14px; width: 100%;
  background: none; border: none; text-align: left; padding: 20px 28px;
  cursor: pointer; font-family: var(--aa-font-b); font-size: 1.02rem;
  font-weight: 700; color: var(--aa-navy); transition: background .18s; line-height: 1.4;
}
.aa-faq-question:hover { background: var(--aa-lighter); }
.aa-faq-question.open { background: var(--aa-lighter); color: var(--aa-blue); }
.aa-faq-qnum {
  flex: 0 0 auto; width: 30px; height: 30px;
  background: var(--aa-grad-blue); border-radius: 50%;
  color: #fff; font-size: 0.72rem; font-weight: 800; font-family: var(--aa-font-h);
  display: flex; align-items: center; justify-content: center;
}
.aa-faq-qtext { flex: 1; }
.aa-faq-qicon {
  flex: 0 0 auto; width: 24px; height: 24px; border-radius: 50%;
  border: 2px solid var(--aa-border); display: flex; align-items: center;
  justify-content: center; transition: transform .25s, border-color .2s, background .2s;
  color: var(--aa-muted);
}
.aa-faq-question.open .aa-faq-qicon {
  transform: rotate(180deg); border-color: var(--aa-blue);
  background: var(--aa-blue); color: #fff;
}
.aa-faq-answer {
  display: none; padding: 0 28px 24px 72px;
  font-size: 0.97rem; color: #2a3550; line-height: 1.72;
}
.aa-faq-answer.open { display: block; }
.aa-faq-answer > p:first-child { margin-top: 0; }
.aa-faq-answer > p:last-child { margin-bottom: 0; }

/* ── CALLOUTS ── */
.aa-faq-warning, .aa-faq-tip, .aa-faq-note {
  display: flex; gap: 14px; border-radius: var(--aa-radius);
  padding: 16px 18px; margin: 18px 0; font-size: 0.93rem;
}
.aa-faq-warning { background: #fff7f5; border-left: 4px solid var(--aa-red); }
.aa-faq-tip     { background: #f0f9f0; border-left: 4px solid var(--aa-green); }
.aa-faq-note    { background: #f0f6ff; border-left: 4px solid var(--aa-blue); }
.aa-faq-callout-icon { flex: 0 0 auto; font-size: 1.3rem; line-height: 1; margin-top: 1px; }
.aa-faq-callout-body strong { display: block; margin-bottom: 4px; }

/* ── TABLES ── */
.aa-faq-tbl-wrap {
  overflow-x: auto; margin: 18px 0;
  border-radius: var(--aa-radius); border: 1px solid var(--aa-border);
}
.aa-faq-tbl {
  width: 100%; border-collapse: collapse;
  font-size: 0.9rem; font-family: var(--aa-font-b);
}
.aa-faq-tbl thead th {
  background: var(--aa-navy); color: #fff; padding: 11px 14px; text-align: left;
  font-family: var(--aa-font-h); font-weight: 700; font-size: 0.82rem;
  letter-spacing: 0.05em; white-space: nowrap;
}
.aa-faq-tbl tbody tr:nth-child(even) { background: var(--aa-lighter); }
.aa-faq-tbl tbody tr:hover { background: #e8f0fa; }
.aa-faq-tbl td {
  padding: 10px 14px; border-bottom: 1px solid var(--aa-border);
  vertical-align: top; line-height: 1.45;
}
.aa-faq-tbl td:first-child { font-weight: 700; color: var(--aa-navy); }
.aa-faq-tbl .aa-faq-ok   { color: #166534; font-weight: 700; }
.aa-faq-tbl .aa-faq-no   { color: #9f1239; font-weight: 700; }
.aa-faq-tbl .aa-faq-warn { color: #92400e; font-weight: 700; }

/* badges */
.aa-faq-badge {
  display: inline-block; padding: 2px 8px; border-radius: 12px;
  font-size: 0.78rem; font-weight: 700; font-family: var(--aa-font-h); letter-spacing: 0.04em;
}
.aa-faq-badge-blue  { background: #dbeafe; color: #1e40af; }
.aa-faq-badge-green { background: #dcfce7; color: #166534; }
.aa-faq-badge-red   { background: #fee2e2; color: #991b1b; }
.aa-faq-badge-amber { background: #fef3c7; color: #92400e; }
.aa-faq-badge-gray  { background: #f1f5f9; color: #475569; }

/* ── QUICK REFERENCE MATRIX ── */
.aa-faq-matrix-section { margin-top: 64px; scroll-margin-top: 56px; }
.aa-faq-matrix-header {
  background: linear-gradient(90deg, #1a3570 0%, #1a6fc4 100%);
  border-radius: var(--aa-radius-lg) var(--aa-radius-lg) 0 0; padding: 24px 32px;
}
.aa-faq-matrix-header h2 { margin: 0; color: #fff; font-size: 1.5rem; font-weight: 800; }
.aa-faq-matrix-header p  { margin: 6px 0 0; color: rgba(255,255,255,0.7); font-size:0.9rem; }
.aa-faq-matrix-body {
  border: 1px solid var(--aa-border); border-top: none;
  border-radius: 0 0 var(--aa-radius-lg) var(--aa-radius-lg);
  padding: 24px 28px; background: #fff;
}
.aa-faq-matrix-h3 {
  margin: 28px 0 12px; font-family: var(--aa-font-h); font-weight: 700;
  font-size: 1.2rem; color: var(--aa-navy);
}
.aa-faq-matrix-h3:first-child { margin-top: 4px; }
.aa-faq-matrix-disclaimer {
  margin-top: 24px; padding: 14px 16px; background: var(--aa-lighter);
  border-left: 4px solid var(--aa-amber); border-radius: var(--aa-radius);
  font-size: 0.85rem; color: var(--aa-muted);
}

/* ── CTA ── */
.aa-faq-cta {
  background: var(--aa-grad); border-radius: var(--aa-radius-lg);
  padding: 52px 40px; text-align: center; margin-top: 72px;
}
.aa-faq-cta h2 { color: #fff; font-size: clamp(1.5rem,3vw,2.2rem); font-weight: 800; margin: 0 0 12px; }
.aa-faq-cta p  { color: rgba(255,255,255,0.75); margin: 0 auto 28px; font-size:1.05rem; max-width:560px; }
.aa-faq-cta-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.aa-faq-btn {
  display: inline-block; padding: 13px 28px; border-radius: var(--aa-radius);
  font-family: var(--aa-font-h); font-weight: 700; font-size: 1rem;
  letter-spacing: 0.04em; text-transform: uppercase; cursor: pointer;
  border: none; transition: transform .15s, box-shadow .15s; text-decoration: none;
}
.aa-faq-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.2); text-decoration:none; }
.aa-faq-btn-primary { background: var(--aa-orange); color: #fff; }
.aa-faq-btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.aa-faq-btn-outline:hover { border-color: #fff; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .aa-faq-hero { padding: 48px 16px 36px; }
  .aa-faq-main { padding: 0 14px 60px; }
  .aa-faq-question { padding: 16px 16px; font-size: 0.95rem; }
  .aa-faq-answer { padding: 0 16px 18px 54px; }
  .aa-faq-chapter-header { padding: 20px 20px 18px; }
  .aa-faq-cta { padding: 36px 20px; }
  .aa-faq-matrix-body { padding: 16px; }
}
@media (max-width: 480px) {
  .aa-faq-answer { padding: 0 12px 16px 12px; }
  .aa-faq-qnum { display: none; }
}

/* ── PRINT ── */
@media print {
  .aa-faq-chapnav-wrap, .aa-faq-search-wrap, .aa-faq-cta { display: none; }
  .aa-faq-answer { display: block !important; }
  .aa-faq-chapter { page-break-inside: avoid; }
}