/* ================================================================
   hub-pages.css — Shared styles for all 12 footer hub pages
   Supports both light and dark themes via prefers-color-scheme
   ================================================================ */

/* ── Design tokens ─────────────────────────────────────────────── */
:root {
  --hub-bg:             #0a0a0f;
  --hub-surface:        #111118;
  --hub-surface-2:      #1a1a24;
  --hub-border:         rgba(255,255,255,0.08);
  --hub-text:           rgba(255,255,255,0.92);
  --hub-text-muted:     rgba(255,255,255,0.5);
  --hub-text-faint:     rgba(255,255,255,0.28);
  --hub-brand:          #fc9354;
  --hub-brand-gradient: linear-gradient(135deg, #fc9354 0%, #ff725a 100%);
  --hub-primary:        var(--hub-accent, #fc9354);
  --hub-primary-soft:   var(--hub-accent-soft, rgba(252,147,84,0.12));
  --hub-primary-border: var(--hub-accent-border, rgba(252,147,84,0.3));
  --hub-radius-card:    2rem;
  --hub-radius-chip:    9999px;
  --hub-shadow-card:    0 4px 32px rgba(0,0,0,0.35);
  --hub-transition:     0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: light) {
  :root {
    --hub-bg:             #f5f5f7;
    --hub-surface:        #ffffff;
    --hub-surface-2:      #ececf0;
    --hub-border:         rgba(0,0,0,0.08);
    --hub-text:           rgba(0,0,0,0.9);
    --hub-text-muted:     rgba(0,0,0,0.55);
    --hub-text-faint:     rgba(0,0,0,0.35);
    --hub-shadow-card:    0 2px 20px rgba(0,0,0,0.08);
  }
}

html,
.hub-body {
  background: var(--hub-bg);
  color: var(--hub-text);
  font-family: 'Manrope', 'Inter', sans-serif;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
}

/* ── Nav ───────────────────────────────────────────────────────── */
.hub-nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 50;
  background: rgba(10,10,15,0.82);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--hub-border);
}
@media (prefers-color-scheme: light) {
  .hub-nav { background: rgba(245,245,247,0.85); }
}

.hub-nav-inner {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.hub-logo {
  font-size: 1.25rem;
  font-weight: 900;
  color: #fff;
  text-decoration: none;
  letter-spacing: -0.04em;
  transition: opacity var(--hub-transition);
}
.hub-logo:hover { opacity: 0.8; }

.hub-nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  font-size: 0.875rem;
  font-weight: 600;
}
.hub-nav-links a {
  color: var(--hub-text-muted);
  text-decoration: none;
  transition: color var(--hub-transition);
}
.hub-nav-links a:hover,
.hub-nav-links a.active { color: var(--hub-text); }

.hub-nav-cta {
  background: var(--hub-brand-gradient) !important;
  color: #fff !important;
  padding: 0.6rem 1.5rem;
  border-radius: 0.75rem;
  font-weight: 800;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: all var(--hub-transition) !important;
  box-shadow: 0 4px 15px rgba(252, 147, 84, 0.25);
}
.hub-nav-cta:hover { 
  transform: translateY(-2px); 
  box-shadow: 0 8px 25px rgba(252, 147, 84, 0.35);
  opacity: 1;
}

@media (max-width: 640px) {
  .hub-nav-links { gap: 1rem; }
  .hub-nav-links a:not(.hub-nav-cta) { display: none; }
}

/* ── Main ──────────────────────────────────────────────────────── */
.hub-main { 
  padding-top: 4.5rem;
  width: 100%;
  overflow-x: hidden;
}

/* ── Hero ──────────────────────────────────────────────────────── */
.hub-hero {
  max-width: 52rem;
  margin: 0 auto;
  padding: 3rem 1.25rem 2rem;
  text-align: center;
  position: relative;
}
@media (min-width: 640px) {
  .hub-hero { padding: 5rem 1.5rem 3rem; }
}
.hub-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 60% at 50% 0%, var(--hub-primary-soft) 0%, transparent 100%);
  pointer-events: none;
}

.hub-breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--hub-text-muted);
  margin-bottom: 1.25rem;
}
@media (min-width: 640px) {
  .hub-breadcrumb { font-size: 0.8rem; margin-bottom: 1.5rem; }
}
.hub-breadcrumb a {
  color: var(--hub-text-muted);
  text-decoration: none;
  transition: color var(--hub-transition);
}
.hub-breadcrumb a:hover { color: var(--hub-primary); }

.hub-hero-badge {
  display: inline-block;
  background: var(--hub-primary-soft);
  border: 1px solid var(--hub-primary-border);
  color: var(--hub-primary);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.25rem 0.85rem;
  border-radius: var(--hub-radius-chip);
  margin-bottom: 1rem;
}
@media (min-width: 640px) {
  .hub-hero-badge { font-size: 0.75rem; padding: 0.35rem 1rem; margin-bottom: 1.25rem; }
}

.hub-hero-title {
  font-size: clamp(2rem, 8vw, 4rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0 0 1rem;
  background: linear-gradient(135deg, var(--hub-text) 0%, var(--hub-text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
@media (min-width: 640px) {
  .hub-hero-title { margin: 0 0 1.25rem; }
}

.hub-hero-subtitle {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--hub-text-muted);
  max-width: 40rem;
  margin: 0 auto;
}
@media (min-width: 640px) {
  .hub-hero-subtitle { font-size: 1.1rem; line-height: 1.7; }
}

/* ── Cards section ─────────────────────────────────────────────── */
.hub-cards-section {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

.hub-cards-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 1.25rem;
}
@media (min-width: 640px)  { .hub-cards-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .hub-cards-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1280px) { .hub-cards-grid { grid-template-columns: repeat(4, 1fr); } }

/* ── Card ──────────────────────────────────────────────────────── */
.hub-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--hub-surface);
  border: 1px solid var(--hub-border);
  border-radius: var(--hub-radius-card);
  padding: 1.75rem;
  text-decoration: none;
  color: var(--hub-text);
  overflow: hidden;
  transition: border-color var(--hub-transition), transform var(--hub-transition), box-shadow var(--hub-transition), background var(--hub-transition);
  box-shadow: var(--hub-shadow-card);
}
.hub-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(80% 60% at 50% 0%, var(--hub-primary-soft) 0%, transparent 100%);
  opacity: 0;
  transition: opacity var(--hub-transition);
  pointer-events: none;
}
.hub-card:hover {
  border-color: var(--hub-primary-border);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25), 0 0 0 1px var(--hub-primary-border);
}
.hub-card:hover::before { opacity: 1; }

/* Glass shimmer effect */
.hub-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.15) 50%, transparent 100%);
}

.hub-card-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
  line-height: 1;
}

.hub-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
  color: var(--hub-text);
}

.hub-card-desc {
  font-size: 0.875rem;
  line-height: 1.65;
  color: var(--hub-text-muted);
  margin: 0 0 1.25rem;
  flex: 1;
}

.hub-card-related {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  margin-bottom: 1rem;
}
.hub-card-related a {
  font-size: 0.78rem;
  color: var(--hub-primary);
  text-decoration: none;
  font-weight: 600;
  transition: opacity var(--hub-transition);
  pointer-events: none; /* parent <a> handles navigation */
}
.hub-card:hover .hub-card-related a { pointer-events: auto; }
.hub-card-related a:hover { opacity: 0.75; }

.hub-card-arrow {
  display: block;
  font-size: 1.1rem;
  color: var(--hub-primary);
  font-weight: 700;
  transition: transform var(--hub-transition);
  align-self: flex-end;
}
.hub-card:hover .hub-card-arrow { transform: translateX(4px); }

/* ── Related hubs strip ────────────────────────────────────────── */
.hub-related-section {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem 4rem;
  text-align: center;
}

.hub-related-title {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--hub-text-faint);
  margin-bottom: 1rem;
}

.hub-related-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.6rem;
}

.hub-chip {
  display: inline-block;
  background: var(--hub-surface-2);
  border: 1px solid var(--hub-border);
  color: var(--hub-text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 1.1rem;
  border-radius: var(--hub-radius-chip);
  text-decoration: none;
  transition: color var(--hub-transition), border-color var(--hub-transition), background var(--hub-transition), transform var(--hub-transition);
}
.hub-chip:hover {
  color: var(--hub-primary);
  border-color: var(--hub-primary-border);
  background: var(--hub-primary-soft);
  transform: translateY(-1px);
}

/* ── FAQ ───────────────────────────────────────────────────────── */
.hub-faq-section {
  max-width: 52rem;
  margin: 0 auto;
  padding: 0 1.5rem 5rem;
}

.hub-faq-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
  text-align: center;
}

.hub-faq-list { display: flex; flex-direction: column; gap: 0.75rem; }

.hub-faq-item {
  background: var(--hub-surface);
  border: 1px solid var(--hub-border);
  border-radius: 0.875rem;
  overflow: hidden;
  transition: border-color var(--hub-transition);
}
.hub-faq-item:hover { border-color: var(--hub-primary-border); }

.hub-faq-item summary {
  padding: 1.1rem 1.4rem;
  font-size: 0.9375rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--hub-text);
  user-select: none;
}
.hub-faq-item summary::-webkit-details-marker { display: none; }
.hub-faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--hub-primary);
  transition: transform var(--hub-transition);
  flex-shrink: 0;
}
.hub-faq-item[open] summary::after { transform: rotate(45deg); }

.hub-faq-item p {
  padding: 0 1.4rem 1.25rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--hub-text-muted);
  margin: 0;
}

.hub-cta-section {
  padding: 0 1.25rem 4rem;
}
@media (min-width: 640px) {
  .hub-cta-section { padding: 0 1.5rem 6rem; }
}

.hub-cta-box {
  max-width: 60rem;
  margin: 0 auto;
  background: #111118;
  border: 1px solid var(--hub-border);
  border-radius: 2rem;
  padding: 3.5rem 1.5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.3);
}
@media (min-width: 640px) {
  .hub-cta-box { border-radius: 2.5rem; padding: 5rem 2rem; }
}
.hub-cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, var(--hub-primary-soft) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.6;
}

.hub-cta-title {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 900;
  color: #fff;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}
.hub-cta-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.78);
  margin: 0 0 2rem;
  line-height: 1.6;
}
.hub-cta-btn {
  display: inline-block;
  background: var(--hub-brand-gradient);
  color: #fff;
  font-size: 1.1rem;
  font-weight: 800;
  padding: 1rem 2.5rem;
  border-radius: 1rem;
  text-decoration: none;
  transition: all var(--hub-transition);
  box-shadow: 0 10px 30px rgba(252, 147, 84, 0.3);
}

.hub-cta-btn:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 15px 40px rgba(252, 147, 84, 0.4);
}

/* ── Footer ────────────────────────────────────────────────────── */
.hub-footer {
  border-top: 1px solid var(--hub-border);
  padding: 2.5rem 1.5rem;
  background: var(--hub-surface);
}
.hub-footer-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  text-align: center;
}
@media (min-width: 768px) {
  .hub-footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}
.hub-footer-logo {
  font-weight: 800;
  color: #fc9354;
  text-decoration: none;
  font-size: 1rem;
}
.hub-footer-copy {
  font-size: 0.78rem;
  color: var(--hub-text-faint);
  margin: 0;
}
.hub-footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
}
@media (min-width: 768px) {
  .hub-footer-links { justify-content: flex-end; }
}
.hub-footer-links a {
  font-size: 0.78rem;
  color: var(--hub-text-faint);
  text-decoration: none;
  transition: color var(--hub-transition);
}
.hub-footer-links a:hover { color: var(--hub-text-muted); }

/* ── Discovery Mesh ─────────────────────────────────────────── */
.discovery-section {
  max-width: 80rem;
  margin: 0 auto 8rem;
  padding: 0 1.5rem;
}

.discovery-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 3rem;
}

.discovery-header-info {
  display: flex;
  flex-direction: column;
}

.discovery-badge {
  color: var(--hub-primary);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: 0.5rem;
}

.discovery-title {
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin: 0;
  color: var(--hub-text);
}

.discovery-divider {
  height: 1px;
  flex-grow: 1;
  margin-left: 2rem;
  background: var(--hub-border);
}

@media (max-width: 768px) {
  .discovery-divider { display: none; }
}

.discovery-grid {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 3rem 1.5rem;
  align-items: stretch;
}

@media (min-width: 640px)  { .discovery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .discovery-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 1280px) { .discovery-grid { grid-template-columns: repeat(4, 1fr); } }

.discovery-card {
  position: relative;
  background: var(--hub-surface);
  border: 1px solid var(--hub-border);
  border-radius: 2rem;
  padding: 2.5rem;
  text-decoration: none;
  color: var(--hub-text);
  overflow: hidden;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.discovery-card::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 8rem; height: 8rem;
  background: radial-gradient(circle at center, var(--hub-primary-soft) 0%, transparent 70%);
  filter: blur(40px);
  opacity: 0.3;
  transition: opacity 0.5s;
}

.discovery-card:hover {
  border-color: var(--hub-primary-border);
  transform: translateY(-8px);
  background: var(--hub-surface-2);
  box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

.discovery-card:hover::before { opacity: 0.6; }

.discovery-card-content {
  position: relative;
  z-index: 10;
}

.discovery-card-icon-wrapper {
  width: 3.5rem;
  height: 3.5rem;
  background: var(--hub-surface-2);
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--hub-primary);
  margin-bottom: 2rem;
  transition: all 0.5s;
  box-shadow: inset 0 0 0 1px var(--hub-border);
}

.discovery-card:hover .discovery-card-icon-wrapper {
  background: var(--hub-primary-soft);
  transform: scale(1.1) rotate(5deg);
}

.discovery-card-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--hub-text);
}

.discovery-card-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--hub-text-muted);
  margin: 0;
}

.discovery-card-footer {
  position: relative;
  z-index: 10;
  margin-top: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--hub-primary);
  opacity: 0.6;
  transition: all 0.3s;
}

.discovery-card:hover .discovery-card-footer {
  opacity: 1;
  gap: 0.75rem;
}