:root {
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --accent: #38BDF8;
  --background: #0F172A;
  --surface: #1E293B;
  --surface-alt: #334155;
  --text: #F8FAFC;
  --text-dim: #94A3B8;
  --border: #334155;
  --pill: 9999px;
  --radius-lg: 32px;
  --gradient: linear-gradient(135deg, #3B82F6 0%, #38BDF8 100%);
}

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

body {
  font-family: 'Lexend', sans-serif;
  background-color: var(--background);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.pill {
  border-radius: var(--pill) !important;
}

.pill-container {
  border-radius: 24px !important;
}

.app-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--primary);
}

.user-stats {
  background: var(--surface);
  padding: 0.5rem 1.2rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.central-hub {
  max-width: 620px;
  margin: 2rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 32px;
  padding: 1.5rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.hub-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.hub-badge {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 0.2rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hub-chat-area {
  height: 400px;
  overflow-y: auto;
  padding: 1rem;
  background: rgba(0,0,0,0.2);
  border-radius: 24px;
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.hub-msg.assistant { align-self: flex-start; width: 100%; }
.hub-msg.user { align-self: flex-end; max-width: 85%; }

.msg-bubble {
  background: var(--surface-alt);
  padding: 0.8rem 1.2rem;
  border-radius: 20px;
  font-size: 0.9rem;
}

.hub-msg.user .msg-bubble {
  background: var(--primary);
  color: white;
}

.ai-card-v2 {
  background: var(--background);
  border: 1px solid var(--border);
  overflow: hidden;
  width: 100%;
}

.ai-card-content { padding: 1.5rem; }

.ai-card-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.ai-card-badge {
  align-self: flex-start;
  background: var(--primary);
  padding: 0.2rem 0.8rem;
  font-size: 0.7rem;
  color: white;
}

.meta-row { display: flex; gap: 0.8rem; color: var(--text-dim); font-size: 0.8rem; }

.hub-input {
  display: flex;
  gap: 0.5rem;
}

.hub-input input {
  flex: 1;
  padding: 0.8rem 1.5rem;
  background: var(--background);
  border: 1px solid var(--border);
  color: var(--text);
  outline: none;
}

.active-btn {
  width: 50px;
  background: var(--primary);
  color: white;
  border: none;
  cursor: pointer;
}

.content-wrapper { padding: 0 2rem 4rem; }
.collection { max-width: 1200px; margin: 0 auto; }
.collection-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; flex-wrap: wrap; gap: 1rem; }
.filters { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.filter-chip {
  padding: 0.5rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.8rem;
}

.filter-chip.active { background: var(--primary); color: white; border-color: var(--primary); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.empty-state i { font-size: 3rem; opacity: 0.3; }

.card {
  background: var(--surface);
  overflow: hidden;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: 0.3s ease;
}

.card:hover { transform: translateY(-5px); border-color: var(--primary); }

.card-body { padding: 1.5rem; }

.card-header-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 0.8rem;
}

.tag-inline {
  align-self: flex-start;
  background: var(--primary);
  padding: 0.2rem 0.8rem;
  font-size: 0.7rem;
  color: white;
}

.card-meta { display: flex; gap: 1rem; color: var(--text-dim); font-size: 0.8rem; }

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.modal-inner-compact {
  background: var(--background);
  width: 100%;
  max-width: 550px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  border: none;
  box-shadow: 0 40px 100px rgba(0,0,0,0.8);
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-lg);
}

.modal-content-compact {
  padding: 3rem 2rem 2rem;
}

.modal-title-bar {
  margin-bottom: 2rem;
  text-align: center;
}

.modal-title-bar h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.pill-meta-group {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.tag-pill {
  background: var(--surface);
  padding: 0.4rem 1rem;
  font-size: 0.75rem;
  color: var(--text-dim);
  border: 1px solid var(--border);
}

.section-header-compact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.ing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-bottom: 2rem;
}

.ing-item {
  background: var(--surface);
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  text-align: center;
}

.instructions-list {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.step-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.step-num {
  background: var(--primary);
  color: white;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.step-item p {
  font-size: 0.95rem;
  color: var(--text-dim);
}

.close-btn {
  position: absolute;
  top: 20px; right: 20px;
  width: 40px; height: 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: white;
  cursor: pointer;
  z-index: 1010;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.primary-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  cursor: pointer;
  transition: 0.2s;
  width: 100%;
  font-weight: 600;
}

.primary-btn:hover { background: var(--primary-dark); }

.typing-status {
  font-size: 0.85rem;
  color: var(--primary);
  padding-left: 1rem;
}

footer {
  padding: 2rem;
  text-align: center;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  margin-top: auto;
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .ing-grid { grid-template-columns: 1fr; }
  .modal-inner-compact { max-height: 95vh; }
  .central-hub { margin: 1rem; }
}