/* css/site.css — public homepage + shared header/footer components */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: var(--dl-white);
  border-bottom: 1px solid var(--dl-off-white);
}
.site-header .wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--dl-navy);
  font-size: 1.1rem;
  text-decoration: none;
}
.site-header .wordmark small {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-style: italic;
  color: var(--dl-med-gray);
  font-size: 0.75rem;
}

/* ---- Hero (pharma-ad register, per brief) ---- */

.hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-7) var(--space-4);
  background: linear-gradient(135deg, var(--dl-navy) 0%, var(--dl-purple) 55%, var(--dl-pink) 130%);
  color: var(--dl-white);
}

.hero-grid {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-6);
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 999px;
  padding: var(--space-2) var(--space-3);
  margin-bottom: var(--space-4);
}

.hero h1 {
  color: var(--dl-white);
  font-size: clamp(2rem, 5vw, 3.25rem);
  margin-bottom: var(--space-4);
}
.hero h1 em {
  display: block;
  font-style: italic;
  color: var(--dl-teal);
}

.hero p.lede {
  font-family: var(--font-body);
  font-size: 1.15rem;
  max-width: 34rem;
  color: rgba(255, 255, 255, 0.92);
}
.hero p.lede strong { color: var(--dl-teal); font-weight: 600; }

.hero-badge {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  width: 6.5rem;
  height: 6.5rem;
  border-radius: 50%;
  background: var(--dl-navy);
  border: 3px solid var(--dl-pink);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.7rem;
  line-height: 1.2;
  color: var(--dl-white);
}

.hero-portrait {
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, var(--dl-teal), var(--dl-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
  padding: var(--space-4);
  font-size: 0.9rem;
  border: 2px dashed rgba(255, 255, 255, 0.5);
}

.hero-caption {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.7);
  font-style: italic;
  margin-top: var(--space-2);
}

@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-badge { position: static; margin-bottom: var(--space-4); }
}

/* ---- ISI tray (fixed to viewport, expandable, opens by default) ---- */

.isi-tray {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--dl-navy);
  color: var(--dl-white);
  border-top: 2px solid var(--dl-pink);
  z-index: 500;
  box-shadow: 0 -8px 24px rgba(2, 12, 40, 0.35);
  max-height: 80vh;
  overflow-y: auto;
}

/* Reserve room at the bottom of the page so the collapsed tray never
   permanently covers the footer. When expanded it's allowed to overlay
   content, that's the standard pharma-ISI pattern: it's meant to be read,
   then dismissed. */
body.has-isi-tray {
  padding-bottom: 3.5rem;
}

.isi-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  background: transparent;
  border: none;
  color: var(--dl-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color var(--transition-standard);
}
.isi-toggle:hover {
  background-color: rgba(255, 255, 255, 0.06);
}
.isi-toggle .isi-chevron {
  transition: transform var(--transition-standard);
}
.isi-toggle[aria-expanded="true"] .isi-chevron {
  transform: rotate(180deg);
}

.isi-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-standard);
}
.isi-panel[data-open="true"] {
  max-height: 40rem;
}

.isi-panel-inner {
  padding: 0 var(--space-4) var(--space-5);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.isi-panel-inner h3 {
  color: var(--dl-teal);
  font-size: 0.85rem;
  margin-bottom: var(--space-2);
}
.isi-panel-inner p {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
}

@media (max-width: 800px) {
  .isi-panel-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .isi-panel-inner { grid-template-columns: 1fr; }
}

/* ---- Stat bar ---- */

.stat-bar {
  background: var(--dl-off-white);
  padding: var(--space-6) var(--space-4);
}
.stat-grid {
  max-width: 72rem;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  text-align: center;
}
.stat-grid dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.25rem;
  color: var(--dl-purple);
}
.stat-grid dd {
  margin: var(--space-2) 0 0;
  font-size: 0.85rem;
  color: var(--dl-med-gray);
}
@media (max-width: 700px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- Section shell ---- */

.section {
  padding: var(--space-7) var(--space-4);
  max-width: 72rem;
  margin: 0 auto;
}
.section-eyebrow {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dl-pink);
  text-align: center;
  display: block;
  margin-bottom: var(--space-2);
}
.section h2 {
  text-align: center;
  font-size: 1.9rem;
  margin-bottom: var(--space-6);
}

/* ---- Mechanism / ingredients ---- */

.mechanism-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-4);
}
.mechanism-card {
  background: var(--dl-off-white);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  border-top: 4px solid var(--dl-purple);
}
.mechanism-card h3 {
  font-size: 1rem;
  margin-bottom: var(--space-3);
}
.mechanism-card ul { margin: 0; padding-left: 1.2rem; }
.mechanism-card.result {
  border-top-color: var(--dl-teal);
  text-align: center;
}
.mechanism-card .big-stat {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.5rem;
  color: var(--dl-navy);
  display: block;
}
@media (max-width: 800px) {
  .mechanism-grid { grid-template-columns: 1fr; }
}

/* ---- Process steps ---- */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-6);
}
.process-step {
  text-align: center;
}
.process-step .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: var(--dl-purple);
  color: var(--dl-white);
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.process-step h3 { font-size: 1rem; }
.process-step p { font-size: 0.9rem; color: var(--dl-med-gray); }
@media (max-width: 800px) {
  .process-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- Case study grid ---- */

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.case-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--dl-navy);
  border: 2px solid transparent;
  transition: transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow var(--transition-standard),
              border-color var(--transition-standard);
}
.case-card:hover,
.case-card:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(2, 12, 40, 0.3);
  border-color: var(--dl-teal);
}
.case-card:hover .case-thumb img,
.case-card:hover .case-thumb::before {
  transform: scale(1.04);
}
.case-card:hover .case-lock-overlay {
  background: rgba(2, 12, 40, 0.4);
}
.case-card:hover .lock-icon {
  transform: scale(1.15) rotate(-4deg);
}
.case-card:hover h3 {
  color: var(--dl-teal);
}
.case-thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  background: linear-gradient(135deg, var(--dl-purple), var(--dl-navy));
  overflow: hidden;
}
.case-thumb::before {
  content: "";
  position: absolute;
  inset: 0;
  background: inherit;
  transition: transform 300ms ease;
}
.case-thumb.locked::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.06) 0 2px, transparent 2px 14px);
  filter: blur(1px);
}
.case-lock-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  text-align: center;
  padding: var(--space-3);
  background: rgba(2, 12, 40, 0.55);
  transition: background var(--transition-standard);
}
.case-lock-overlay .lock-icon {
  font-size: 1.75rem;
  display: inline-block;
  transition: transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1);
}
.case-lock-overlay .lock-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  color: var(--dl-white);
  letter-spacing: 0.02em;
}

.case-body { padding: var(--space-4); }
.case-body .case-client {
  font-family: var(--font-display);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--dl-teal);
  display: block;
  margin-bottom: var(--space-2);
}
.case-body h3 {
  color: var(--dl-white);
  font-size: 1.1rem;
  margin-bottom: var(--space-2);
  transition: color var(--transition-standard);
}
.case-body .case-stat { color: var(--dl-pink); font-weight: 600; font-size: 0.9rem; }
@media (max-width: 900px) {
  .case-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .case-grid { grid-template-columns: 1fr; }
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
.case-card {
  animation: card-in 500ms ease both;
}
.case-grid .case-card:nth-child(1) { animation-delay: 40ms; }
.case-grid .case-card:nth-child(2) { animation-delay: 100ms; }
.case-grid .case-card:nth-child(3) { animation-delay: 160ms; }
.case-grid .case-card:nth-child(4) { animation-delay: 220ms; }
.case-grid .case-card:nth-child(5) { animation-delay: 280ms; }
.case-grid .case-card:nth-child(6) { animation-delay: 340ms; }

/* ---- Recognition ---- */

.recognition-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-5);
}
.recognition-badge {
  border: 1px solid var(--dl-light-gray);
  border-radius: 999px;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--dl-navy);
}

.bio-block {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-5);
  align-items: center;
  margin-top: var(--space-6);
  background: var(--dl-off-white);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}
.bio-portrait {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, var(--dl-pink), var(--dl-purple));
}
@media (max-width: 700px) {
  .bio-block { grid-template-columns: 1fr; }
}

/* ---- Footer CTA ---- */

.footer-cta {
  background: var(--dl-navy);
  color: var(--dl-white);
  text-align: center;
  padding: var(--space-7) var(--space-4);
}
.footer-cta h2 { color: var(--dl-white); }
.footer-cta p { color: rgba(255, 255, 255, 0.8); margin-bottom: var(--space-5); }

.site-footer {
  background: var(--dl-charcoal);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.8rem;
  padding: var(--space-5) var(--space-4);
  text-align: center;
}
.site-footer a { color: rgba(255, 255, 255, 0.85); }