/* ==========================================================================
   Shared Sub-Page Styles — CSI Dry Eye
   ========================================================================== */

/* ---------- Page Hero ---------- */
.page-hero {
  position: relative;
  min-height: clamp(350px, 40vh, 500px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-navy);
  overflow: hidden;
  padding-top: var(--header-height);
}

.page-hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 40%, rgba(0, 60, 100, 0.6) 0%, transparent 60%),
    radial-gradient(ellipse at 70% 60%, rgba(0, 40, 80, 0.5) 0%, transparent 55%);
  pointer-events: none;
}

.page-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.03;
  pointer-events: none;
}

.page-hero__inner {
  position: relative;
  z-index: var(--z-content);
  text-align: center;
  max-width: 800px;
  margin-inline: auto;
  padding-block: var(--space-4xl) var(--space-2xl);
  padding-inline: var(--space-lg);
}

.page-hero__pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  background: rgba(250, 187, 0, 0.12);
  border: 1px solid rgba(250, 187, 0, 0.25);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  padding: 0.4em 1.2em;
  margin-bottom: var(--space-lg);
}

.page-hero__pill::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  animation: pulse-dot 2s ease-in-out infinite;
}

.page-hero h1 {
  color: #fff;
  font-size: clamp(2rem, 1.5rem + 3vw, 3rem);
  font-weight: var(--fw-extrabold);
  line-height: var(--lh-tight);
  margin-bottom: var(--space-md);
}

.page-hero h1 em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-accent), #FFD54F);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  color: rgba(255, 255, 255, 0.65);
  font-size: var(--fs-lg);
  max-width: 640px;
  margin-inline: auto;
  line-height: var(--lh-relaxed);
}

.page-hero .btn-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

/* ---------- Step Cards ---------- */
.step-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

.step-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
}

.step-card__number {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--fw-bold);
  font-size: var(--fs-sm);
  margin-bottom: var(--space-md);
}

@media (min-width: 768px) {
  .step-card:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -18px;
    transform: translateY(-50%);
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 10px solid var(--color-primary);
  }
}

/* ---------- Value Cards ---------- */
.value-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--color-accent);
}

/* ---------- Pain Cards ---------- */
.pain-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-card);
}

.pain-card__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: rgba(220, 53, 69, 0.1);
  color: var(--color-error);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
}

/* ---------- Resource Links ---------- */
.resource-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: transform var(--transition-base);
  text-decoration: none;
  color: var(--color-text);
}

.resource-link:hover {
  transform: translateX(4px);
}

/* ---------- Check List ---------- */
.check-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.check-list li svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 3px;
}

/* ---------- CTA Banner Dark ---------- */
.cta-banner-dark {
  background: var(--color-bg-navy);
  border-radius: var(--radius-xl);
  padding: var(--space-4xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner-dark__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(0, 60, 100, 0.5) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 40%, rgba(250, 187, 0, 0.08) 0%, transparent 50%);
  pointer-events: none;
}

.cta-banner-dark__inner {
  position: relative;
  z-index: var(--z-content);
  max-width: 600px;
  margin-inline: auto;
}

.cta-banner-dark h2 {
  color: #fff;
}

.cta-banner-dark p {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-2xl);
}

/* ---------- Feature Split ---------- */
.feature-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

@media (min-width: 768px) {
  .feature-split {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-split--reverse {
  direction: rtl;
}

.feature-split--reverse > * {
  direction: ltr;
}

.feature-split__media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ---------- Pulse Dot Keyframes (shared) ---------- */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.4; }
}