/* ── HERO ────────────────────────────────────────────── */
.inst-hero {
  padding: 160px 48px 72px;
  max-width: 1200px;
  margin: 0 auto;
}

/* ── MATERIALS ───────────────────────────────────────── */
.inst-material {
  padding: 0 48px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.inst-material-inner > .label {
  margin-bottom: 32px;
}

.material-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.material-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 28px 24px;
}

.material-n {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #4caf6e;
  margin-bottom: 12px;
}

.material-card h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: rgba(255,255,255,0.9);
}

.material-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.6;
  margin: 0;
}

/* ── STEPS ───────────────────────────────────────────── */
.inst-steps {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px 80px;
  display: flex;
  flex-direction: column;
  gap: 100px;
}

.inst-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.inst-step-rev {
  direction: rtl;
}

.inst-step-rev > * {
  direction: ltr;
}

.inst-step-img {
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: rgba(255,255,255,0.04);
}

.inst-step-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.inst-step-label {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 16px;
}

.inst-step-num {
  font-size: 32px;
  font-weight: 800;
  color: rgba(76,175,110,0.2);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.inst-step-content h2 {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.95);
}

.inst-step-content p {
  font-size: 16px;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  margin-bottom: 20px;
}

.inst-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.inst-bullets li {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.inst-bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  background: #4caf6e;
  border-radius: 50%;
}

/* ── PRODUCT NOTES ───────────────────────────────────── */
.inst-notes {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 48px 80px;
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.note-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 12px;
  padding: 32px 28px;
}

.note-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #4caf6e;
  margin-bottom: 12px;
}

.note-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: rgba(255,255,255,0.9);
  margin-bottom: 12px;
}

.note-card p {
  font-size: 14px;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  margin-bottom: 20px;
}

.note-link {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s;
}

.note-link:hover {
  color: #4caf6e;
}

/* ── B2B CTA SPLIT ───────────────────────────────────── */
.cta-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  text-align: left;
  max-width: 1000px;
}

.cta-main .title {
  text-align: left;
}

.cta-main .subtitle {
  text-align: left;
  margin: 0 0 32px;
}

.cta-secondary {
  border-left: 1px solid rgba(255,255,255,0.08);
  padding-left: 72px;
}

.cta-secondary-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: 12px;
}

.cta-secondary p:last-of-type {
  font-size: 15px;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
  margin-bottom: 28px;
}

.btn-outline {
  display: inline-block;
  padding: 14px 28px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
  letter-spacing: 0.02em;
}

.btn-outline:hover {
  border-color: rgba(255,255,255,0.4);
  color: rgba(255,255,255,0.9);
}

/* ── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .material-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .inst-step,
  .inst-step-rev {
    grid-template-columns: 1fr;
    gap: 36px;
    direction: ltr;
  }

  .inst-step-img {
    aspect-ratio: 16/9;
  }

  .notes-grid {
    grid-template-columns: 1fr;
  }

  .cta-split {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .cta-main .title,
  .cta-main .subtitle {
    text-align: center;
  }

  .cta-secondary {
    border-left: none;
    border-top: 1px solid rgba(255,255,255,0.08);
    padding-left: 0;
    padding-top: 48px;
    text-align: center;
  }
}

@media (max-width: 640px) {
  .inst-hero {
    padding: 120px 24px 56px;
  }

  .inst-material,
  .inst-steps,
  .inst-notes {
    padding-left: 24px;
    padding-right: 24px;
  }

  .material-grid {
    grid-template-columns: 1fr;
  }

  .inst-steps {
    gap: 64px;
  }
}