/* ================================================
   Formulations page — single-window dosage layout
   ================================================ */

/* Section wrapper */
.form-dev-sections {
  display: flex;
  flex-direction: column;
}

/* Individual dosage-form block */
.form-dev-block {
  padding: 48px 0;
}

/* Numbered category label */
.form-dev-label {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.form-dev-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: 0;
  flex-shrink: 0;
}

/* Horizontal rule between blocks */
.form-dev-rule {
  height: 1px;
  background: var(--border);
}

/* OSD 3-up grid (Tablets / Capsules / MR) */
.form-osd-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* ── OSD Dosage Form Cards ──────────────────────────────────────────────── */
.osd-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.osd-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: #fff;
  display: flex;
  flex-direction: column;
}
.osd-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
}
.osd-head-teal { background: linear-gradient(135deg, #0e3a6e 0%, #0D9488 100%); }
.osd-head-blue { background: linear-gradient(135deg, #0e3a6e 0%, #1356A8 100%); }
.osd-card-icon {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,.16);
  border-radius: 8px;
  flex-shrink: 0;
}
.osd-card-icon svg { width: 18px; height: 18px; color: #fff; }
.osd-card-label {
  font-size: .82rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: .01em;
  line-height: 1.3;
}
.osd-list {
  list-style: none;
  padding: 16px 18px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
}
.osd-list li {
  font-size: .82rem;
  color: var(--text);
  padding-left: 15px;
  position: relative;
  line-height: 1.5;
}
.osd-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 7px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--teal);
}

/* ── Packaging card spec tags ───────────────────────────────────────────── */
.pkg-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
  justify-content: center;
}
.pkg-specs span {
  font-size: .68rem;
  font-weight: 700;
  color: var(--teal);
  background: rgba(13,148,136,.08);
  border: 1px solid rgba(13,148,136,.2);
  border-radius: 4px;
  padding: 2px 7px;
  letter-spacing: .02em;
}

/* ── OSD Complex Challenges strip ───────────────────────────────────────── */
.osd-challenges {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
}
.osd-challenge-hdr {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 20px;
}
.osd-challenge-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.osd-challenge-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.osd-challenge-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: rgba(13,148,136,.1);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.osd-challenge-icon svg { width: 18px; height: 18px; color: var(--teal); }
.osd-challenge-title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--navy);
  margin: 0 0 6px;
}
.osd-challenge-text {
  font-size: .8rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

/* ── Packaging list style ─────────────────────────────────────────────────── */
.pkg-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 8px;
}
.pkg-list-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.pkg-list-item:hover {
  box-shadow: 0 6px 24px rgba(11,30,68,.1);
  transform: translateY(-3px);
}
.pkg-list-img {
  width: 100%;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: #f0f4f8;
}
.pkg-list-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transition: transform .35s ease;
}
.pkg-list-item:hover .pkg-list-img img { transform: scale(1.05); }
.pkg-list-img-svg {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #f8fafc;
}
.pkg-list-body {
  padding: 14px 14px 16px;
  border-top: 2px solid var(--teal);
}
.pkg-list-title {
  font-size: .88rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 4px;
}
.pkg-list-sub {
  font-size: .75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.pkg-list-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}
.pkg-list-specs span {
  font-size: .65rem;
  font-weight: 700;
  color: var(--teal);
  background: rgba(13,148,136,.08);
  border: 1px solid rgba(13,148,136,.2);
  border-radius: 4px;
  padding: 2px 6px;
}
@media (max-width: 1024px) { .pkg-list { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 640px)  { .pkg-list { grid-template-columns: 1fr 1fr; } }

/* ---- Legacy sub-tab classes kept for safety (unused) ---- */
.sub-tab-nav  { display: none; }
.sub-tab-pane { display: block; }

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .osd-card-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .form-dev-block { padding: 32px 0; }
  .osd-challenge-grid { grid-template-columns: 1fr; gap: 20px; }
  .osd-challenges { padding: 20px; }
}
@media (max-width: 580px) {
  .osd-card-grid { grid-template-columns: 1fr; }
  .form-osd-grid  { grid-template-columns: 1fr; gap: 12px; }
}