/* ==========================================================
   BMP360 PLATFORM IDENTITY + HELP CENTER
   Component: bmp360_platform_banner.php
   Layer: 03-sections supplement
   ========================================================== */

/* ── SECTION SHELL ── */
.bmp-platform-section {
  position: relative;
  background: var(--mt-neutral-900);
  padding: var(--mt-space-16) 0 var(--mt-space-20);
  overflow: hidden;
}

/* subtle dot-grid overlay */
.bmp-platform-grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(30,107,227,0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

/* faint radial glow top-right */
.bmp-platform-section::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(30,107,227,0.12) 0%,
    transparent 70%
  );
  pointer-events: none;
}

/* ── EYEBROW ── */
.bmp-platform-eyebrow {
  text-align: center;
  margin-bottom: var(--mt-space-10);
}

.bmp-platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.72rem;
  font-weight: var(--mt-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mt-accent);
  background: rgba(56, 189, 248, 0.10);
  border: 1px solid rgba(56, 189, 248, 0.22);
  border-radius: var(--mt-radius-full);
  padding: 0.35rem 1rem;
}

/* ── IDENTITY CARD (Left) ── */
.bmp-identity-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--mt-radius-xl);
  padding: var(--mt-space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--mt-duration-slow) ease;
}

.bmp-identity-card:hover {
  border-color: rgba(30,107,227,0.35);
}

.bmp-identity-logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--mt-space-4);
  margin-bottom: var(--mt-space-5);
}

.bmp-logo-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--mt-radius-lg);
  background: linear-gradient(135deg, var(--mt-brand-primary), #0f4aad);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 18px rgba(30,107,227,0.35);
}

.bmp-logo-icon i {
  font-size: 1.3rem;
  color: #fff;
}

.bmp-identity-title {
  font-size: 1.45rem;
  font-weight: var(--mt-weight-extrabold);
  color: var(--mt-text-inverse);
  margin: 0;
  line-height: 1.2;
}

.bmp-identity-title span {
  color: var(--mt-accent);
}

.bmp-identity-subtitle {
  font-size: 0.75rem;
  color: var(--mt-neutral-400);
  margin: 0;
  letter-spacing: 0.05em;
}

.bmp-identity-desc {
  font-size: 0.9rem;
  color: var(--mt-neutral-300);
  line-height: 1.7;
  margin-bottom: var(--mt-space-5);
}

.bmp-identity-meta {
  display: flex;
  flex-direction: column;
  gap: var(--mt-space-2);
  margin-top: auto;
}

.bmp-meta-item {
  display: flex;
  align-items: center;
  gap: var(--mt-space-2);
  font-size: 0.82rem;
  color: var(--mt-neutral-300);
}

.bmp-meta-item i {
  color: var(--mt-success);
  font-size: 0.75rem;
  flex-shrink: 0;
}

.bmp-identity-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mt-space-3);
}

/* ── HELP CENTER CARD (Right) ── */
.bmp-helpcenter-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--mt-radius-xl);
  padding: var(--mt-space-8);
  display: flex;
  flex-direction: column;
  transition: border-color var(--mt-duration-slow) ease;
}

.bmp-helpcenter-card:hover {
  border-color: rgba(30,107,227,0.35);
}

.bmp-helpcenter-header {
  display: flex;
  align-items: center;
  gap: var(--mt-space-4);
  margin-bottom: var(--mt-space-4);
}

.bmp-hc-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--mt-radius-lg);
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bmp-hc-icon-wrap i {
  font-size: 1.35rem;
  color: var(--mt-accent);
}

.bmp-hc-title {
  font-size: 1.2rem;
  font-weight: var(--mt-weight-bold);
  color: var(--mt-text-inverse);
  margin: 0;
}

.bmp-hc-sub {
  font-size: 0.73rem;
  color: var(--mt-neutral-400);
  margin: 0;
  letter-spacing: 0.04em;
}

.bmp-hc-desc {
  font-size: 0.87rem;
  color: var(--mt-neutral-400);
  line-height: 1.65;
  margin-bottom: var(--mt-space-5);
}

/* ── TOPIC LINKS ── */
.bmp-hc-topics {
  display: flex;
  flex-direction: column;
  gap: var(--mt-space-2);
  margin-bottom: var(--mt-space-6);
}

.bmp-hc-topic {
  display: flex;
  align-items: center;
  gap: var(--mt-space-3);
  padding: var(--mt-space-3) var(--mt-space-4);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--mt-radius-lg);
  text-decoration: none;
  transition:
    background var(--mt-duration-fast) ease,
    border-color var(--mt-duration-fast) ease,
    transform var(--mt-duration-fast) ease;
}

.bmp-hc-topic:hover {
  background: rgba(30,107,227,0.12);
  border-color: rgba(30,107,227,0.3);
  transform: translateX(4px);
  text-decoration: none;
}

.bmp-hc-topic-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--mt-radius-md);
  background: rgba(30,107,227,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.bmp-hc-topic-icon i {
  font-size: 0.85rem;
  color: var(--mt-brand-primary);
}

.bmp-hc-topic:hover .bmp-hc-topic-icon {
  background: rgba(30,107,227,0.25);
}

.bmp-hc-topic-body {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.bmp-hc-topic-body strong {
  font-size: 0.85rem;
  font-weight: var(--mt-weight-semibold);
  color: var(--mt-text-inverse);
}

.bmp-hc-topic-body small {
  font-size: 0.73rem;
  color: var(--mt-neutral-400);
  margin-top: 1px;
}

.bmp-hc-topic-arrow {
  font-size: 0.65rem;
  color: var(--mt-neutral-500);
  flex-shrink: 0;
  transition: color var(--mt-duration-fast) ease;
}

.bmp-hc-topic:hover .bmp-hc-topic-arrow {
  color: var(--mt-brand-primary);
}

/* ── FULL HELP CENTER BUTTON ── */
.bmp-hc-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.4rem;
  background: linear-gradient(135deg,
    rgba(30,107,227,0.18),
    rgba(30,107,227,0.08)
  );
  border: 1px solid rgba(30,107,227,0.35);
  border-radius: var(--mt-radius-lg);
  color: var(--mt-accent);
  font-size: 0.875rem;
  font-weight: var(--mt-weight-semibold);
  text-decoration: none;
  margin-top: auto;
  transition:
    background var(--mt-duration-fast) ease,
    border-color var(--mt-duration-fast) ease,
    color var(--mt-duration-fast) ease;
}

.bmp-hc-cta:hover {
  background: rgba(30,107,227,0.28);
  border-color: rgba(30,107,227,0.55);
  color: #fff;
  text-decoration: none;
}

.bmp-hc-cta-arrow {
  transition: transform var(--mt-duration-fast) ease;
}

.bmp-hc-cta:hover .bmp-hc-cta-arrow {
  transform: translateX(4px);
}

/* ==========================================================
   FLOATING HELP BUTTON
   ========================================================== */
.bmp-float-help {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 1080;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1rem 0.6rem 0.7rem;
  background: var(--mt-neutral-900);
  border: 1px solid rgba(30,107,227,0.45);
  border-radius: var(--mt-radius-full);
  box-shadow:
    0 4px 24px rgba(0,0,0,0.35),
    0 0 0 3px rgba(30,107,227,0.08);
  color: var(--mt-accent);
  font-size: 0.8rem;
  font-weight: var(--mt-weight-semibold);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition:
    background var(--mt-duration-fast) ease,
    border-color var(--mt-duration-fast) ease,
    box-shadow var(--mt-duration-fast) ease,
    transform var(--mt-duration-fast) ease;
}

.bmp-float-help:hover {
  background: var(--mt-brand-primary);
  border-color: var(--mt-brand-primary);
  color: #fff;
  box-shadow:
    0 8px 32px rgba(30,107,227,0.45),
    0 0 0 4px rgba(30,107,227,0.12);
  transform: translateY(-2px);
  text-decoration: none;
}

.bmp-float-help-icon {
  font-size: 1.05rem;
}

.bmp-float-help-label {
  white-space: nowrap;
}

/* Pulse animation on load — subtle attention signal */
@keyframes bmp-help-pulse {
  0%, 100% { box-shadow: 0 4px 24px rgba(0,0,0,0.35), 0 0 0 3px rgba(30,107,227,0.08); }
  50%       { box-shadow: 0 4px 24px rgba(0,0,0,0.35), 0 0 0 7px rgba(30,107,227,0.14); }
}

.bmp-float-help {
  animation: bmp-help-pulse 3s ease-in-out 2s 3;
}

/* ── Mobile ── */
@media (max-width: 768px) {
  .bmp-platform-section {
    padding: var(--mt-space-12) 0 var(--mt-space-14);
  }

  .bmp-identity-card,
  .bmp-helpcenter-card {
    padding: var(--mt-space-6);
  }

  .bmp-identity-actions {
    flex-direction: column;
  }

  .bmp-identity-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .bmp-float-help-label {
    display: none;
  }

  .bmp-float-help {
    padding: 0.7rem;
    border-radius: 50%;
  }
}