/* ============================================================
   HarmoniQ — Sector Page Styles
   Supplements articles.css for sector teaser content.
   ============================================================ */

/* ── Tier Cards ──────────────────────────────────────────── */
.tier-grid {
  display: grid;
  gap: 16px;
  margin: 36px 0 44px;
}
.tier-card {
  padding: 28px 32px;
  background: var(--bg-secondary);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
.tier-card .tier-body { flex: 1; min-width: 0; }
.tier-card .tier-img { width: 200px; flex-shrink: 0; align-self: center; }
.tier-card .tier-img img { width: 100%; height: auto; display: block; }
.tier-card .tier-name {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 8px;
}
.tier-card .tier-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  letter-spacing: -0.3px;
}
.tier-card p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin: 0;
}
.tier-card strong { color: var(--text-primary); }

/* ── Tech Toggle (details/summary) ───────────────────────── */
.tech-toggle {
  margin: 36px 0 44px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.2s;
}
.tech-toggle:hover {
  border-color: var(--border-strong);
}
.tech-toggle summary {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  user-select: none;
  background: var(--bg-secondary);
}
.tech-toggle summary::-webkit-details-marker { display: none; }
.tech-toggle summary .toggle-cta {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: var(--radius-sm);
  margin-left: auto;
  flex-shrink: 0;
  white-space: nowrap;
  transition: background 0.2s;
}
.tech-toggle:hover summary .toggle-cta { background: #156637; }
.tech-toggle summary .toggle-cta .label-closed { display: inline; }
.tech-toggle summary .toggle-cta .label-open { display: none; }
.tech-toggle[open] summary .toggle-cta .label-closed { display: none; }
.tech-toggle[open] summary .toggle-cta .label-open { display: inline; }
.tech-toggle[open] summary .toggle-cta { background: var(--text-muted); }
.tech-toggle .detail {
  padding: 20px 24px 24px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--text-secondary);
  border-top: 1px solid var(--border);
}
.tech-toggle .detail p {
  margin-top: 0;
  margin-bottom: 0;
}

/* ── Steps (3-column) ────────────────────────────────────── */
.sector-steps {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0;
  margin: 36px 0 44px;
}
.sector-step {
  text-align: center;
  padding: 28px 20px;
  position: relative;
}
.sector-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px; height: 48px;
  background: var(--text-primary);
  color: var(--bg-primary);
  border-radius: 50%;
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.sector-step-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.sector-step-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.sector-step-arrow {
  position: absolute;
  right: -10px;
  top: 42px;
  font-size: 1.5rem;
  color: var(--text-muted);
  font-weight: 700;
  z-index: 1;
}
.sector-step:last-child .sector-step-arrow { display: none; }

/* ── Myth/Reality Cards ──────────────────────────────────── */
.myth-grid {
  display: grid;
  gap: 16px;
  margin: 36px 0 44px;
}
.myth-card {
  padding: 28px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}
.myth-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, #dc2626, var(--accent));
}
.myth-label {
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 8px;
}
.myth-label.myth { color: #dc2626; }
.myth-label.reality { color: var(--accent); }
.myth-text {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.5;
}
.reality-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .sector-steps { grid-template-columns: 1fr; gap: 0; }
  .sector-step-arrow { display: none !important; }
  .sector-step { padding: 20px 12px; }
  .tier-card { padding: 20px; flex-direction: column; }
  .tier-card .tier-img { display: none; }
  .myth-card { padding: 20px; }
  .myth-text { font-size: 0.875rem; }
  .reality-text { font-size: 0.875rem; }
  .tech-toggle summary { padding: 14px 16px; font-size: 0.8125rem; gap: 8px; }
  .tech-toggle summary .toggle-cta { padding: 3px 10px; font-size: 0.65rem; }
  .tech-toggle .detail { padding: 16px; font-size: 0.875rem; }
}