/* ==========================================================================
   VTI PARTNER PRODUCTS SECTION (css/partner-products.css)
   Showcasing Rugged Monitoring (Canada), Dynamic Ratings (USA), Broadsens (USA)
   Strictly compliant with REFERENCES_SENSOR_VN.md §2, §5, §6
   ========================================================================== */

.vti-partner-products-section {
  background-color: var(--vti-navy-dark, #071524);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(14, 165, 233, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 80%, rgba(229, 147, 36, 0.07) 0%, transparent 50%);
  color: var(--vti-text-on-dark, #f8fafc);
  padding: clamp(60px, 8vw, 100px) 0;
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--vti-border-dark, rgba(255, 255, 255, 0.1));
  border-bottom: 1px solid var(--vti-border-dark, rgba(255, 255, 255, 0.1));
}

.vti-partner-products-header {
  text-align: center;
  max-width: 860px;
  margin: 0 auto clamp(40px, 5vw, 64px);
  padding: 0 16px;
}

.vti-partner-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.35);
  color: #38bdf8;
  font-size: var(--vti-text-xs, 0.75rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.vti-partner-pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #38bdf8;
  box-shadow: 0 0 8px rgba(56, 189, 248, 0.9);
}

.vti-partner-products-title {
  font-size: clamp(1.65rem, 3.2vw + 0.2rem, 2.5rem);
  font-weight: 800;
  line-height: 1.25;
  color: #ffffff;
  margin: 0 0 16px;
  letter-spacing: -0.015em;
}

.vti-partner-products-desc {
  font-size: clamp(0.95rem, 1.3vw, 1.1rem);
  color: var(--vti-text-on-dark-muted, #94a3b8);
  line-height: 1.6;
  margin: 0 auto;
  max-width: 760px;
}

/* CARDS GRID */
.vti-partner-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(20px, 2.5vw, 32px);
  margin-bottom: clamp(40px, 6vw, 60px);
}

@media (max-width: 1024px) {
  .vti-partner-cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .vti-partner-cards-grid {
    grid-template-columns: 1fr;
  }
}

/* INDIVIDUAL PARTNER CARD */
.vti-partner-card-prod {
  background: rgba(13, 34, 56, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.28s ease,
              box-shadow 0.28s ease;
  position: relative;
}

.vti-partner-card-prod:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35), 0 0 20px rgba(14, 165, 233, 0.12);
}

.vti-partner-brand-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-wrap: wrap;
}

.vti-partner-brand-logo-box {
  background: #ffffff;
  padding: 8px 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  min-width: 130px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.vti-partner-brand-logo-box img {
  max-height: 36px;
  max-width: 140px;
  width: auto;
  object-fit: contain;
  display: block;
}

.vti-partner-country-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #e2e8f0;
  font-size: 0.76rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}

.vti-partner-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0 0 8px;
  line-height: 1.35;
}

.vti-partner-card-lead {
  font-size: 0.88rem;
  color: #94a3b8;
  line-height: 1.55;
  margin: 0 0 20px;
}

/* PRODUCT BULLETS LIST */
.vti-partner-item-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.vti-partner-item-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.86rem;
  line-height: 1.5;
  color: #cbd5e1;
}

.vti-partner-item-bullet {
  color: #38bdf8;
  flex-shrink: 0;
  margin-top: 2px;
}

.vti-partner-item-list strong {
  color: #f1f5f9;
  font-weight: 700;
}

/* INTEGRATION NOTICE */
.vti-partner-compat-box {
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.25);
  border-radius: 8px;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
  font-size: 0.8rem;
  color: #86efac;
  line-height: 1.4;
}

.vti-partner-compat-box svg {
  flex-shrink: 0;
  color: #4ade80;
}

/* CARD ACTIONS */
.vti-partner-card-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

.vti-btn-partner-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--vti-amber-warm, #e59324);
  color: #071524;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
}

.vti-btn-partner-cta:hover {
  background: var(--vti-amber-hover, #d28116);
  color: #000000;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(229, 147, 36, 0.3);
}

.vti-link-partner-portal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: transparent;
  color: #94a3b8;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px;
  border-radius: 6px;
  text-decoration: none;
  transition: color 0.2s ease;
}

.vti-link-partner-portal:hover {
  color: #38bdf8;
}

/* VALUE ASSURANCES STRIP */
.vti-partner-assurances {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: rgba(13, 34, 56, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 24px;
}

@media (max-width: 900px) {
  .vti-partner-assurances {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .vti-partner-assurances {
    grid-template-columns: 1fr;
  }
}

.vti-assurance-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.vti-assurance-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(14, 165, 233, 0.12);
  border: 1px solid rgba(14, 165, 233, 0.25);
  color: #38bdf8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.vti-assurance-text h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: #f1f5f9;
  margin: 0 0 4px;
}

.vti-assurance-text p {
  font-size: 0.8rem;
  color: #94a3b8;
  line-height: 1.45;
  margin: 0;
}

/* REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  .vti-partner-card-prod,
  .vti-btn-partner-cta,
  .vti-link-partner-portal {
    transition: none !important;
    transform: none !important;
  }
}