/* ============================================================
   Boekenkast — volgt de design tokens van de hoofdsite (style.css)
   ============================================================ */
:root {
  --bg: #080808;
  --bg-2: #0d0d0d;
  --bg-card: #111111;
  --bg-card-hover: #161616;
  --border: #1a1a1a;
  --border-bright: #262626;
  --accent: #00ff88;
  --red: #ff4757;
  --yellow: #ffd93d;
  --accent-glow: rgba(0, 255, 136, 0.2);
  --accent-dim: rgba(0, 255, 136, 0.08);
  --accent2: #00ccff;
  --text: #c8c8c8;
  --text-dim: #444;
  --text-muted: #777;
  --text-bright: #f0f0f0;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --font-sans: 'Inter', system-ui, sans-serif;
  --radius: 8px;
  --radius-sm: 4px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { font-weight: 800; color: var(--text-bright); line-height: 1.2; }
img { max-width: 100%; display: block; }

.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* === LAYOUT === */
.bk-container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; width: 100%; }
.bk-main { flex: 1; padding: 100px 0 4rem; }

/* === NAV === */
.bk-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  padding: 0 2rem;
  background: rgba(8, 8, 8, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.bk-nav-inner {
  width: 100%; max-width: 1200px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center;
  gap: 1.5rem;
}
.bk-nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  font-weight: 700;
  white-space: nowrap;
}
.bk-nav-logo span { color: var(--text-muted); font-weight: 400; }
.bk-nav-links { display: flex; gap: 1.5rem; flex: 1; flex-wrap: wrap; }
.bk-nav-links a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color 0.2s;
}
.bk-nav-links a:hover, .bk-nav-links a.active { color: var(--accent); }
.bk-nav-actions { display: flex; gap: 0.75rem; align-items: center; }
.bk-nav-user {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-bright) !important;
}

/* === BUTTONS === */
.btn-primary, .btn-ghost, .btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.2s;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.btn-primary:hover { background: transparent; color: var(--accent); box-shadow: 0 0 24px var(--accent-glow); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border-bright);
  font-weight: 400;
}
.btn-ghost:hover { color: var(--text-bright); border-color: var(--text-muted); }
.btn-danger {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
  font-weight: 400;
}
.btn-danger:hover { background: var(--red); color: #000; }
.btn-sm { padding: 0.45rem 1rem; font-size: 0.78rem; }
button.btn-primary, button.btn-ghost, button.btn-danger { font-family: var(--font-mono); }

/* === FLASH MESSAGES === */
.bk-flash {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-bright);
}
.bk-flash-success { color: var(--accent); border-color: var(--accent-glow); background: var(--accent-dim); }
.bk-flash-error { color: var(--red); border-color: rgba(255,71,87,0.3); background: rgba(255,71,87,0.06); }

/* === PAGE HEADER === */
.bk-page-header {
  display: flex; justify-content: space-between; align-items: flex-end; flex-wrap: wrap;
  gap: 1rem; margin-bottom: 2rem;
}
.bk-page-header h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -1px; }
.bk-page-sub { color: var(--text-muted); font-size: 0.95rem; margin-top: 0.4rem; }
.bk-page-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.bk-section { margin: 3rem 0; }
.bk-section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

/* === CARD === */
.bk-card {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 2rem;
}

/* === FORMS === */
.bk-form { display: flex; flex-direction: column; gap: 1.25rem; max-width: 560px; }
.bk-form.bk-form-wide { max-width: 100%; }
.bk-field { display: flex; flex-direction: column; gap: 0.4rem; }
.bk-field label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); }
.bk-field .bk-hint { font-size: 0.78rem; color: var(--text-dim); }
.bk-field input,
.bk-field select,
.bk-field textarea {
  background: var(--bg-2);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  color: var(--text-bright);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  width: 100%;
}
.bk-field input:focus,
.bk-field select:focus,
.bk-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.bk-field textarea { resize: vertical; min-height: 120px; }
.bk-checkbox-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.5rem;
  background: var(--bg-2);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius-sm);
  padding: 0.9rem;
  max-height: 220px;
  overflow-y: auto;
}
.bk-checkbox-grid label {
  display: flex; align-items: center; gap: 0.4rem;
  font-family: var(--font-sans); font-size: 0.85rem; color: var(--text);
}
.bk-form-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.5rem; }
.bk-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 640px) { .bk-form-row { grid-template-columns: 1fr; } }

/* === STARS === */
.bk-stars {
  position: relative;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--border-bright);
  letter-spacing: 2px;
}
.bk-stars::before { content: '★★★★★'; }
.bk-stars-fill {
  position: absolute; top: 0; left: 0;
  overflow: hidden;
  width: 0;
  white-space: nowrap;
  color: var(--yellow);
}
.bk-stars-fill::before { content: '★★★★★'; }
.bk-rating-num { font-family: var(--font-mono); color: var(--text-muted); font-size: 0.85rem; margin-left: 0.4rem; }

/* === FILTER BAR === */
.bk-filter-bar {
  display: flex; flex-wrap: wrap; gap: 0.75rem;
  margin-bottom: 2rem;
  align-items: flex-end;
}
.bk-filter-bar .bk-field { min-width: 160px; flex: 1; }
.bk-filter-bar input, .bk-filter-bar select { padding: 0.6rem 0.8rem; font-size: 0.85rem; }

/* === BOOK GRID === */
.bk-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.5rem;
}
.bk-book-card {
  background: var(--bg-card);
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all 0.2s;
}
.bk-book-card:hover { border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.4); }
.bk-book-cover {
  width: 100%; aspect-ratio: 2/3;
  background: var(--bg-2);
  object-fit: cover;
  border-bottom: 1px solid var(--border-bright);
}
.bk-book-info { padding: 0.9rem 1rem 1.1rem; display: flex; flex-direction: column; gap: 0.35rem; flex: 1; }
.bk-book-title { font-size: 0.95rem; color: var(--text-bright); font-weight: 700; }
.bk-book-title a { color: inherit; }
.bk-book-title a:hover { color: var(--accent); }
.bk-book-authors { font-size: 0.8rem; color: var(--text-muted); font-family: var(--font-mono); }
.bk-book-rating { margin-top: auto; display: flex; align-items: center; }

/* === EMPTY STATE === */
.bk-empty {
  text-align: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 3rem 1rem;
  border: 1px dashed var(--border-bright);
  border-radius: var(--radius);
}

/* === TAGS / BADGES === */
.bk-tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.bk-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  background: var(--accent-dim);
  color: var(--accent);
  border-radius: 4px;
}
.bk-tag a { color: inherit; }
.bk-status-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--border-bright);
  color: var(--text-muted);
  white-space: nowrap;
}
.bk-status-wil_lezen { color: var(--accent2); border-color: rgba(0,204,255,0.3); }
.bk-status-aan_het_lezen { color: var(--yellow); border-color: rgba(255,217,61,0.3); }
.bk-status-uitgelezen { color: var(--accent); border-color: var(--accent-glow); }
.bk-status-gestopt { color: var(--red); border-color: rgba(255,71,87,0.3); }

/* === BOOK DETAIL === */
.bk-book-detail {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}
@media (max-width: 720px) { .bk-book-detail { grid-template-columns: 1fr; } }
.bk-book-detail-cover {
  width: 100%; aspect-ratio: 2/3; object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border-bright);
  background: var(--bg-card);
}
.bk-meta-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0.75rem 1.5rem; margin: 1.25rem 0; }
.bk-meta-row span { display: block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.2rem; }
.bk-meta-row b { color: var(--text-bright); font-weight: 600; font-size: 0.92rem; }
.bk-description { color: var(--text); font-size: 0.95rem; margin: 1rem 0; }

/* === REVIEWS === */
.bk-review {
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  background: var(--bg-card);
}
.bk-review-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.5rem; }
.bk-review-user { font-family: var(--font-mono); color: var(--text-bright); font-weight: 700; font-size: 0.9rem; }
.bk-review-date { font-family: var(--font-mono); color: var(--text-dim); font-size: 0.75rem; }
.bk-review-body { font-size: 0.92rem; color: var(--text); }
.bk-review-actions { margin-top: 0.75rem; display: flex; gap: 0.75rem; }
.bk-review-actions a, .bk-review-actions button { font-size: 0.75rem; }

/* === TABLES (admin) === */
.bk-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.bk-table th, .bk-table td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.bk-table th { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }
.bk-table tr:hover td { background: var(--bg-card-hover); }
.bk-table-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.bk-table-wrap { overflow-x: auto; }

/* === SHELF === */
.bk-shelf-item {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  gap: 1.25rem;
  align-items: center;
  padding: 1rem;
  border: 1px solid var(--border-bright);
  border-radius: var(--radius);
  background: var(--bg-card);
  margin-bottom: 0.75rem;
}
.bk-shelf-item img { width: 70px; aspect-ratio: 2/3; object-fit: cover; border-radius: var(--radius-sm); }
.bk-shelf-actions { display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-end; }
.bk-shelf-actions form { display: flex; gap: 0.5rem; align-items: center; }
@media (max-width: 600px) {
  .bk-shelf-item { grid-template-columns: 56px 1fr; }
  .bk-shelf-actions { grid-column: 1 / -1; align-items: stretch; }
}

/* === FOOTER === */
.bk-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0;
  margin-top: auto;
}
.bk-footer .bk-container {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 0.75rem;
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-dim);
}