/* ============================================================
   RC-Start — Help Page Styles
   ============================================================ */

/* ---------- Active nav link ---------- */
.nav-link--active {
  color: #ffffff !important;
  font-weight: 700;
}
.mobile-nav-link--active {
  color: #ffffff !important;
  font-weight: 600;
}

/* ---------- Help page layout ---------- */
.help-page {
  min-height: calc(100vh - 68px);
  background: var(--bg);
  padding: 3rem 0 6rem;
}

.help-title-wrap {
  text-align: center;
  margin-bottom: 3rem;
}

.help-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
}

/* ---------- Tabs ---------- */
.help-tabs {
  display: flex;
  justify-content: center;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.help-tabs::-webkit-scrollbar { display: none; }

.help-tab {
  flex-shrink: 0;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-400);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  white-space: nowrap;
}
.help-tab:hover { color: var(--white); }
.help-tab--active {
  color: #60a5fa;
  border-bottom-color: #60a5fa;
}

/* ---------- Tab panels ---------- */
.help-panel {
  outline: none;
}
.help-panel[hidden] { display: none; }


/* ============================================================
   FAQ TAB
   ============================================================ */
.faq-list {
  max-width: 48rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-category-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gray-300);
  padding: 1.5rem 0 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0.25rem;
}
.faq-category-title:first-child { padding-top: 0; }

.faq-item {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.2s;
}
.faq-item:has(.faq-question[aria-expanded="true"]) {
  border-color: rgba(59,130,246,0.35);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  text-align: left;
  color: var(--white);
  font-size: 1rem;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s;
}
.faq-question:hover { background: rgba(255,255,255,0.04); }

.faq-chevron {
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform 0.3s ease;
}
.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.5rem;
}
.faq-answer.open {
  max-height: 400px;
  padding: 0 1.5rem 1.25rem;
}
.faq-answer p {
  color: var(--gray-300);
  font-size: 0.95rem;
  line-height: 1.7;
}


/* ============================================================
   INSTRUCTIONS TAB
   ============================================================ */
.instructions-list {
  max-width: 40rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.instruction-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  transition: background 0.2s, border-color 0.2s;
}
.instruction-item:hover {
  background: rgba(255,255,255,0.07);
  border-color: var(--border-blue);
}

.instruction-info h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.25rem;
}
.instruction-info p {
  color: var(--gray-400);
  font-size: 0.875rem;
}

.btn-download {
  flex-shrink: 0;
  padding: 0.75rem 1.5rem;
  font-size: 0.925rem;
}


/* ============================================================
   CONNECTIONS TAB — Brand/Model/Detail
   ============================================================ */
.conn-view-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--white);
  text-align: center;
  margin-bottom: 2rem;
}

/* Brand selector */
.conn-brands-row {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.conn-brand-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem;
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  width: 180px;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--gray-300);
}
.conn-brand-btn:hover {
  border-color: var(--border-blue);
  background: rgba(255,255,255,0.08);
}

.conn-brand-logo {
  /*width: 80px;*/
  height: 60px;
  margin-bottom: 0.75rem;
  transition: transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.conn-brand-logo img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.conn-brand-btn:hover .conn-brand-logo { transform: scale(1.1); }

.conn-brand-btn span {
  font-size: 0.875rem;
  font-weight: 500;
}

/* Models view */
.conn-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.conn-back {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  color: var(--white);
  cursor: pointer;
  transition: background 0.2s;
  flex-shrink: 0;
}
.conn-back:hover { background: rgba(255,255,255,0.12); }

.conn-brand-label {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--white);
}

.conn-models-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.conn-model-card {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: border-color 0.2s;
  display: flex;
  flex-direction: column;
}
.conn-model-card:hover { border-color: var(--border-blue); }

.conn-model-img {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #0d1117;
  cursor: pointer;
  position: relative;
}
.conn-model-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}
.conn-model-card:hover .conn-model-img img { transform: scale(1.06); }

.conn-model-img-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.2s;
}
.conn-model-img:hover .conn-model-img-overlay { opacity: 1; }
.conn-model-img-overlay svg { color: white; }

.conn-model-body {
  padding: 1.25rem;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
  flex: 1;
}
.conn-model-body:hover { background: rgba(255,255,255,0.04); }

.conn-model-detail-hint {
  position: absolute;
  bottom: 0.75rem;
  right: 0.75rem;
  color: var(--gray-500);
  display: flex;
  transition: color 0.2s, transform 0.2s;
}
.conn-model-body:hover .conn-model-detail-hint {
  color: #60a5fa;
  transform: scale(1.2);
}

.conn-model-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.4rem;
  transition: color 0.2s;
}
.conn-model-body:hover .conn-model-title { color: #60a5fa; }

.conn-model-meta {
  color: var(--gray-400);
  font-size: 0.85rem;
  margin-bottom: 0.2rem;
}

/* Model card — full card is clickable */
.conn-model-card { cursor: pointer; }
.conn-model-body { cursor: inherit; }
.conn-model-img  { cursor: inherit; }

/* Connection detail view */
.conn-detail-wrap { max-width: 56rem; margin: 0 auto; }

.conn-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-400);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.2s;
}
.conn-back-btn:hover { color: var(--white); }

.conn-detail-card {
  background: rgba(255,255,255,0.04);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  padding: 2.5rem;
}

/* Section title inside detail card */
.conn-detail-section-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1.5rem;
}

/* Car model photo — full width, no click */
.conn-detail-brand-wrap {
  margin-bottom: 1.75rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}
.conn-detail-brand-img {
  display: block;
  width: 100%;
  height: auto;
  pointer-events: none;
  user-select: none;
}

/* Car info block */
.conn-detail-car-info {
  margin-bottom: 0.5rem;
}
.conn-detail-name {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.3rem;
}
.conn-detail-year {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-200, #e5e7eb);
  margin-bottom: 0;
}
.conn-detail-equipment {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--gray-400);
  margin-top: 0.2rem;
  margin-bottom: 0;
}
.conn-detail-equipment[hidden] {
  display: none;
}

/* Models loading / states */
.conn-models-loader {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
  padding: 3rem 0;
}
.conn-models-loader span {
  width: 36px;
  height: 36px;
  border: 3px solid rgba(255,255,255,0.12);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: conn-spin 0.7s linear infinite;
}
@keyframes conn-spin { to { transform: rotate(360deg); } }

.conn-models-error,
.conn-models-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--gray-400);
  font-size: 0.95rem;
}

/* Model card without image */
.conn-model-img--empty {
  cursor: default;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
}
.conn-model-img--empty:hover .conn-model-img-overlay { display: none; }


/* img-modal styles moved to style.css (global) */


/* ============================================================
   CONN POINTS — Interface accordion + wire bars
   ============================================================ */
.conn-detail-points {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Loading spinner */
.cp-loader {
  display: flex;
  justify-content: center;
  padding: 2.5rem 0;
}
.cp-loader span {
  width: 32px;
  height: 32px;
  border: 3px solid rgba(255,255,255,0.12);
  border-top-color: #3b82f6;
  border-radius: 50%;
  animation: conn-spin 0.7s linear infinite;
}

.cp-no-data {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--gray-400);
  font-size: 0.95rem;
}

/* Interface section (CAN-A, CAN-B …) */
.cp-section {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cp-section-header {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.25rem;
  background: rgba(255,255,255,0.04);
  color: var(--white);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s;
}
.cp-section-header:hover { background: rgba(255,255,255,0.08); }

.cp-section-chevron {
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform 0.25s ease;
  transform: rotate(-90deg); /* right = closed */
}
.cp-section--open .cp-section-chevron {
  transform: rotate(0deg); /* down = open */
}

.cp-section-body {
  padding: 1.25rem 1.5rem 1.5rem;
  border-top: 1px solid var(--border);
}

/* Variant heading */
.cp-variant-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-300);
  margin: 1.25rem 0 0.875rem;
}
.cp-variant-title:first-child { margin-top: 0; }

.cp-variant-desc {
  color: var(--gray-300);
  font-size: 0.9rem;
  margin-bottom: 1rem;
  line-height: 1.55;
}

/* Wire row */
.cp-wire-row {
  display: flex;
  align-items: center;
  margin-bottom: 0.625rem;
}

.cp-wire-label {
  width: 52px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--gray-400);
  flex-shrink: 0;
  text-align: right;
  padding-right: 0.75rem;
  white-space: nowrap;
}

.cp-wire-track {
  flex: 1;
  height: 26px;
  border-radius: 13px;
  /* Automotive wire: base colour (c1) with a longitudinal stripe (c2) along the wire */
  background: linear-gradient(
    to bottom,
    var(--c1, #888) 0%,
    var(--c1, #888) 35%,
    var(--c2, #888) 35%,
    var(--c2, #888) 65%,
    var(--c1, #888) 65%,
    var(--c1, #888) 100%
  );
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 1;
}

.cp-wire-pill {
  background: rgba(255,255,255,0.93);
  color: #1c1c1c;
  border-radius: 99px;
  padding: 1px 11px;
  font-size: 0.75rem;
  font-weight: 400;
  border: 1px solid rgba(0,0,0,0.12);
  white-space: nowrap;
  pointer-events: none;
  flex-shrink: 0;
}

/* Photos */
.cp-photos {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.cp-photo-thumb {
  width: 148px;
  height: 111px;
  object-fit: cover;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid var(--border);
  transition: opacity 0.2s, border-color 0.2s;
  display: block;
}
.cp-photo-thumb:hover {
  opacity: 0.85;
  border-color: var(--border-blue);
}

/* Commentary note */
.cp-commentary {
  margin-top: 0.875rem;
  padding: 0.75rem 1rem;
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: var(--radius-sm);
  color: #60a5fa;
  font-size: 0.85rem;
  line-height: 1.55;
}

@media (max-width: 768px) {
  .cp-wire-pill { font-size: 0.7rem; padding: 1px 8px; }
  .cp-photo-thumb { width: 120px; height: 90px; }
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .help-page { padding: 2rem 0 4rem; }

  .help-tabs { justify-content: flex-start; }
  .help-tab { padding: 0.875rem 1rem; font-size: 0.875rem; }

  .instruction-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .btn-download { width: 100%; justify-content: center; }

  .conn-brands-row { gap: 1rem; }
  .conn-brand-btn  { width: 140px; padding: 1.25rem; }

  .conn-models-grid { grid-template-columns: 1fr; }

  .conn-detail-card { padding: 1.5rem; }
  .conn-detail-name { font-size: 1.5rem; }
}

@media (max-width: 480px) {
  .conn-brands-row { flex-direction: column; align-items: center; }
  .conn-brand-btn  { width: 100%; max-width: 240px; }
}