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

:root {
  --font-ui: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Newsreader", Georgia, serif;
  --c-bg: #faf9f7;
  --c-surface: #ffffff;
  --c-surface-alt: #f7f6f3;
  --c-border: #e8e6e1;
  --c-border-subtle: #f0eee9;
  --c-text: #1a1a1a;
  --c-text-secondary: #4a4a4a;
  --c-text-tertiary: #8a8a8a;
  --c-accent: #1d4ed8;
  --c-accent-muted: #3b82f6;
  --c-accent-soft: #eff6ff;
  --radius: 6px;
  --radius-lg: 12px;
  --radius-xl: 16px;
}

html {
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  min-height: 100vh;
}

.face-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Hero header */
.face-header {
  padding: 80px 48px 0;
  max-width: 860px;
  margin: 0 auto;
  width: 100%;
  animation: face-fade-up 0.6s ease both;
}

@keyframes face-fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.face-brand {
  display: flex;
  align-items: center;
  gap: 20px;
}

.face-brand-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #1d4ed8 0%, #7c3aed 50%, #a855f7 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 1.125rem;
  font-weight: 700;
  color: white;
  letter-spacing: -0.02em;
  box-shadow: 0 8px 24px rgba(29, 78, 216, 0.25), 0 2px 8px rgba(124, 58, 237, 0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.face-brand:hover .face-brand-icon {
  transform: scale(1.05) rotate(-2deg);
  box-shadow: 0 12px 32px rgba(29, 78, 216, 0.3), 0 4px 12px rgba(124, 58, 237, 0.2);
}

.face-brand-title {
  font-family: var(--font-ui);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: var(--c-text);
  line-height: 1.1;
}

.face-brand-subtitle {
  font-family: var(--font-ui);
  font-size: 0.875rem;
  color: var(--c-text-tertiary);
  margin-top: 4px;
  letter-spacing: -0.01em;
}

/* Main grid */
.face-main {
  flex: 1;
  max-width: 860px;
  margin: 0 auto;
  width: 100%;
  padding: 56px 48px 80px;
}

.face-loading {
  text-align: center;
  color: var(--c-text-tertiary);
  padding: 64px 0;
  font-family: var(--font-ui);
  font-size: 0.875rem;
}

.face-loading a {
  color: var(--c-accent);
  text-decoration: none;
}

.face-loading a:hover { text-decoration: underline; }

/* Category sections */
.face-category {
  margin-bottom: 48px;
  animation: face-fade-up 0.6s ease both;
}

.face-category:nth-child(1) { animation-delay: 0.1s; }
.face-category:nth-child(2) { animation-delay: 0.2s; }
.face-category:nth-child(3) { animation-delay: 0.3s; }

.face-category-label {
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-text-tertiary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--c-border-subtle);
  display: flex;
  align-items: center;
  gap: 8px;
}

.face-category-label::before {
  content: "";
  width: 3px;
  height: 14px;
  border-radius: 2px;
  background: var(--c-accent-muted);
}

.face-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

/* Topic card */
.topic-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-xl);
  padding: 28px 32px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: border-color 0.25s ease, box-shadow 0.3s ease, transform 0.25s ease;
}

.topic-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--topic-color, #1d4ed8), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.topic-card:hover {
  border-color: var(--c-accent-muted);
  box-shadow: 0 12px 40px rgba(29, 78, 216, 0.08), 0 4px 12px rgba(0, 0, 0, 0.03);
  transform: translateY(-3px);
}

.topic-card:hover::before {
  opacity: 1;
}

.topic-card:active {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(29, 78, 216, 0.06), 0 2px 8px rgba(0, 0, 0, 0.02);
}

.topic-card-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.topic-card-icon {
  width: 44px;
  height: 44px;
  border-radius: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  transition: transform 0.3s ease;
}

.topic-card:hover .topic-card-icon {
  transform: scale(1.08);
}

.topic-card-title {
  font-family: var(--font-ui);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.topic-card-status {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.5625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 4px;
  margin-top: 6px;
}

.topic-card-status.active {
  background: var(--c-accent-soft);
  color: var(--c-accent);
}

.topic-card-status.complete {
  background: #ecfdf5;
  color: #059669;
}

.topic-card-status.draft {
  background: #fffbeb;
  color: #d97706;
}

.topic-card-desc {
  font-size: 0.9375rem;
  color: var(--c-text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
  max-width: 560px;
}

.topic-card-stats {
  display: flex;
  gap: 20px;
  font-family: var(--font-ui);
  font-size: 0.6875rem;
  color: var(--c-text-tertiary);
}

.topic-stat {
  display: flex;
  align-items: center;
  gap: 4px;
}

.topic-stat-num {
  font-weight: 700;
  color: var(--c-text-secondary);
  font-variant-numeric: tabular-nums;
}

.topic-card-arrow {
  position: absolute;
  right: 28px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5rem;
  color: var(--c-border);
  transition: color 0.25s ease, transform 0.25s ease;
  font-weight: 300;
}

.topic-card:hover .topic-card-arrow {
  color: var(--c-accent);
  transform: translateY(-50%) translateX(6px);
}

/* Footer */
.face-footer {
  text-align: center;
  padding: 36px 48px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--c-text-tertiary);
  border-top: 1px solid var(--c-border-subtle);
  animation: face-fade-up 0.6s ease 0.4s both;
}

/* Responsive */
@media (max-width: 640px) {
  .face-header { padding: 48px 20px 0; }
  .face-main { padding: 40px 20px 64px; }
  .face-brand-icon { width: 44px; height: 44px; font-size: 0.9375rem; border-radius: 11px; }
  .face-brand-title { font-size: 1.5rem; }
  .topic-card { padding: 22px; }
  .topic-card-title { font-size: 1.0625rem; }
}