/* =============================================
   PharmaRegAI — Home Page Styles
   ============================================= */

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-3xl);
  background: var(--dark-bg);
  overflow: hidden;
}

/* Animated gradient mesh background */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(26, 86, 219, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 60% 80%, rgba(26, 86, 219, 0.08) 0%, transparent 40%);
  animation: hero-mesh 12s ease-in-out infinite alternate;
}

@media (prefers-reduced-motion: no-preference) {
  @keyframes hero-mesh {
    0% {
      background:
        radial-gradient(ellipse at 20% 50%, rgba(26, 86, 219, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(6, 182, 212, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 60% 80%, rgba(26, 86, 219, 0.08) 0%, transparent 40%);
    }
    100% {
      background:
        radial-gradient(ellipse at 30% 40%, rgba(6, 182, 212, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 30%, rgba(26, 86, 219, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 70%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
    }
  }
}

/* Grid pattern overlay */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content { max-width: 680px; }

.hero-title {
  font-size: var(--fs-display);
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
  color: var(--text-dark-primary);
}

.hero-subtitle {
  font-size: var(--fs-body);
  color: var(--text-dark-muted);
  margin-bottom: var(--space-lg);
  max-width: 520px;
  line-height: 1.7;
}

/* Trust Signal Row */
.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--dark-border);
}

.hero-trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
  font-weight: 500;
}

.hero-trust-item::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--blue-end);
  flex-shrink: 0;
}

/* Portal Mockup */
.hero-visual {
  position: relative;
  perspective: 1000px;
}

.portal-mockup {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
  padding: var(--space-md);
  transform: rotateY(-4deg) rotateX(2deg);
  transition: transform 0.6s var(--ease-out);
}

.portal-mockup:hover { transform: rotateY(0deg) rotateX(0deg); }

.mockup-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-bottom: var(--space-sm);
  margin-bottom: var(--space-sm);
  border-bottom: 1px solid var(--dark-border);
}

.mockup-dot { width: 10px; height: 10px; border-radius: 50%; }
.mockup-dot:nth-child(1) { background: #ef4444; }
.mockup-dot:nth-child(2) { background: #f59e0b; }
.mockup-dot:nth-child(3) { background: #10b981; }

.mockup-searchbar {
  flex: 1;
  margin-left: 12px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
  border: 1px solid var(--dark-border);
}

.mockup-body { display: grid; gap: var(--space-sm); }

.mockup-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xs);
}

.mockup-metric {
  padding: var(--space-sm);
  background: rgba(6, 182, 212, 0.08);
  border-radius: var(--radius-md);
  text-align: center;
}

.mockup-metric-value {
  font-size: var(--fs-h4);
  font-weight: 700;
  color: var(--blue-end);
  font-family: var(--font-display);
}

.mockup-metric-label {
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
  margin-top: 2px;
}

.mockup-card {
  padding: var(--space-sm) var(--space-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--dark-border);
  border-radius: var(--radius-md);
}

.mockup-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.mockup-card-title {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--text-dark-primary);
}

.mockup-status {
  font-size: var(--fs-xs);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.mockup-status.critical { background: rgba(239, 68, 68, 0.1); color: var(--error); }
.mockup-status.medium { background: rgba(245, 158, 11, 0.1); color: var(--warning); }

.mockup-card-desc {
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
  line-height: 1.5;
}

.mockup-card-meta {
  display: flex;
  gap: 12px;
  margin-top: 6px;
  font-size: var(--fs-xs);
  color: var(--text-dark-muted);
}

/* Hero floating labels */
.hero-float {
  position: absolute;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 10px 16px;
  font-size: var(--fs-xs);
  font-weight: 600;
  color: var(--blue-end);
  box-shadow: var(--glass-dark-shadow);
  white-space: nowrap;
  z-index: 2;
}

@media (prefers-reduced-motion: no-preference) {
  .hero-float-1 {
    top: -10px; right: -20px;
    animation: hero-float 4s ease-in-out infinite;
  }
  .hero-float-2 {
    bottom: 20px; left: -30px;
    animation: hero-float 4s ease-in-out 1s infinite;
  }
  @keyframes hero-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }
}

/* --- Problem Section --- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--space-md);
}

.problem-card {
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
}

.problem-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--blue-end), transparent);
  border-radius: 4px 0 0 4px;
}

.problem-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 182, 212, 0.1);
  border-radius: var(--radius-md);
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.problem-card h3 {
  font-size: var(--fs-h4);
  margin-bottom: var(--space-xs);
}

/* --- How We Help (3-column process) --- */
.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-lg);
  position: relative;
}

.process-step {
  position: relative;
  padding: var(--space-lg);
}

.process-step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: var(--fs-body);
  margin-bottom: var(--space-md);
}

.process-step h3 {
  font-size: var(--fs-h4);
  margin-bottom: var(--space-xs);
}

/* --- Features 4x2 Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: var(--space-md);
}

/* --- Stats Strip --- */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

/* --- Differentiator Cards --- */
.diff-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--space-md);
}

/* --- About Mini Section (on home) --- */
.about-mini {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-mini-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero { min-height: auto; padding-bottom: var(--space-xl); }
  .about-mini { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .about-mini-cards { grid-template-columns: 1fr; }
  .stats-strip { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .stats-strip { grid-template-columns: 1fr; }
  .mockup-metrics { grid-template-columns: 1fr; }
}