/* Plus Jakarta Sans & Instrument Serif Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-serif: 'Instrument Serif', Georgia, serif;
  
  /* Brand Theme: Figma Heala Imperial Purple & Pure Light Neutral */
  --purple-brand: #5B4DDF;
  --purple-brand-hover: #4838cc;
  --purple-subtle: #f5f4fd;
  --purple-border: rgba(91, 77, 223, 0.18);
  
  --amber-brand: #d97706;
  --amber-subtle: #fffbeb;
  --amber-border: rgba(217, 119, 6, 0.2);
  
  --emerald-brand: #059669;
  --emerald-subtle: #ecfdf5;
  --emerald-border: rgba(5, 150, 105, 0.2);
  
  --blue-brand: #2563eb;
  --blue-subtle: #eff6ff;
  --blue-border: rgba(37, 99, 235, 0.2);

  --bg-gradient-start: #fbfbfd;
  --bg-gradient-end: #f4f3fb;
  --color-card-bg: rgba(255, 255, 255, 0.95);
  --color-text-main: #18181b;
  --color-text-muted: #71717a;
  
  --border-hairline: rgba(0, 0, 0, 0.07);
  --border-medium: rgba(0, 0, 0, 0.12);
  
  --shadow-sm: 0 4px 10px rgba(91, 77, 223, 0.03);
  --shadow-md: 0 10px 30px rgba(91, 77, 223, 0.06);
  --shadow-lg: 0 20px 50px rgba(91, 77, 223, 0.1);
  
  --border-radius-lg: 20px;
  --border-radius-md: 12px;
  --border-radius-sm: 8px;
  
  --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background: linear-gradient(180deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  color: var(--color-text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.hub-container {
  max-width: 860px;
  width: 100%;
  text-align: center;
  animation: fadeIn 0.8s ease-out;
}

header {
  margin-bottom: 32px;
}

.hub-subtitle {
  font-family: var(--font-sans);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--purple-brand);
  font-weight: 700;
  margin-bottom: 8px;
}

.hub-title {
  font-family: var(--font-serif);
  font-size: 3.4rem;
  font-weight: 400;
  line-height: 1.15;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.hub-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Card Styling */
.project-card {
  background: var(--color-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(91, 77, 223, 0.15);
  border-radius: var(--border-radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
  text-align: left;
}

.project-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 24px 60px rgba(91, 77, 223, 0.12);
  border-color: rgba(91, 77, 223, 0.25);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #ec4899, var(--purple-brand), #3b82f6);
}

.project-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--purple-subtle);
  color: var(--purple-brand);
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  border: 1px solid var(--purple-border);
}

.card-title {
  font-family: var(--font-serif);
  font-size: 2.6rem;
  font-weight: 400;
  color: var(--color-text-main);
  margin-bottom: 14px;
}

.card-description {
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 28px;
}

/* Specs Info Grid */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

.spec-item {
  background: #fbfbfd;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: var(--border-radius-md);
  padding: 14px 12px;
  transition: var(--transition-smooth);
}

.spec-item:hover {
  background: #ffffff;
  border-color: var(--purple-border);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(91, 77, 223, 0.08);
}

.spec-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  font-weight: 700;
}

.spec-value {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--color-text-main);
}

/* Action Buttons */
.actions-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.primary-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--purple-brand) 0%, #4838cc 100%);
  color: white;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05rem;
  padding: 15px 28px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 15px rgba(91, 77, 223, 0.3);
  transition: var(--transition-smooth);
}

.primary-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(91, 77, 223, 0.4);
  filter: brightness(1.05);
}

.secondary-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.secondary-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: white;
  color: var(--color-text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 13px 18px;
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(0, 0, 0, 0.1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
  transition: var(--transition-smooth);
}

.secondary-btn:hover {
  background: #fbfbfd;
  border-color: var(--purple-brand);
  color: var(--purple-brand);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(91, 77, 223, 0.12);
}

.accent-btn {
  background: #fffcf0 !important;
  color: #b45309 !important;
  border-color: #d97706 !important;
  font-weight: 800 !important;
}

.accent-btn:hover {
  background: #fef3c7 !important;
  color: #92400e !important;
  border-color: #b45309 !important;
}

footer {
  margin-top: 40px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 680px) {
  .specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .secondary-grid {
    grid-template-columns: 1fr;
  }
  
  .project-card {
    padding: 24px;
  }
  
  .hub-title {
    font-size: 2.5rem;
  }
}