:root{ --bg:#fff; --text:#111; --muted:#666; --accent:#111; --gap:24px; }
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.site-header{border-bottom:1px solid #eee;margin-bottom:24px}
.nav{display:flex;align-items:center;justify-content:space-between;padding:16px 0;flex-wrap:wrap;gap:16px}
.brand{font-weight:700;font-size:1.25rem;letter-spacing:.02em}
.menu{list-style:none;margin:0;padding:0;display:flex;gap:16px;flex-wrap:wrap ;align-items: baseline ;}
.menu a{color:var(--text)}
.section-header{display:flex;align-items:baseline;justify-content:space-between;margin:24px 0;flex-wrap:wrap;gap:12px}
.section-header a{color: darkblue;}
.muted{color:var(--muted);font-size:.95rem}
.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap)}
.card{grid-column:span 4;display:flex;flex-direction:column;gap:12px}
.card img{width:100%;height:320px;object-fit:cover;border:1px solid #eee}
.card .meta{font-size:.95rem;color:var(--muted)}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{font-size:.75rem;border:1px solid #ccc;padding:2px 6px;border-radius:999px;color:#333}
.card.recommended{border-top:4px solid #111;padding-top:8px}
.card .featured{font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.08em}
.table{width:100%;border-collapse:collapse;font-size:.95rem}
.table th,.table td{  padding:10px;text-align:left;vertical-align:top}
.table th{font-weight:600}
.table img{width:60px;height:80px;object-fit:cover;border:1px solid #eee}
.filters{display:flex;flex-wrap:wrap;gap:12px;margin:8px 0 16px}
.filters input[type=text],.filters select{padding:8px;border:1px solid #ccc;border-radius:6px;min-width:160px}
.filters button{padding:8px 12px;border:1px solid #111;background:#111;color:#fff;border-radius:6px;cursor:pointer}
.filters .ghost{background:transparent;color:#111}
.form{display:grid;gap:12px;max-width:720px}
.form input[type=text],.form input[type=number],.form input[type=email],.form input[type=password],.form textarea,.form select,.form input[type=file]{padding:10px;border:1px solid #ccc;border-radius:6px;width:100%}
.form button{padding:10px 14px;border:1px solid #111;background:#111;color:#fff;border-radius:6px;cursor:pointer}
.actions{display:flex;gap:8px;align-items:center;}
.actions button,.actions a{white-space:nowrap}
.notice{padding:10px 12px;border:1px solid #eee;border-radius:6px}
.valok{background-color:green;color:white;}
.valnok{background-color:red;color:white;}
.knopoverzicht{
  color:white; padding:8px 12px; border-radius:4px; cursor:pointer; font-size:.9rem;
  }
.alwayspadding {padding-top:24px; border-top:1px solid gray; ;}

/* Button uniform styling */
button{border:none;cursor:pointer;font-family:inherit;transition:opacity 0.2s}
button:hover{opacity:0.9}

/* Mobile menu toggle button */
.menu-toggle{display:none;background:none;border:none;font-size:1.5rem;cursor:pointer;padding:0;color:var(--text)}
.menu-toggle:hover{opacity:0.7}

/* Custom Dropdown */
.dropdown-item-custom{position:relative;display:flex;align-items:center}
.dropdown-toggle-custom{color:var(--text);cursor:pointer;display:flex;align-items:center;padding:4px 8px}
.dropdown-toggle-custom:hover{opacity:0.7;text-decoration:none}
.dropdown-menu-custom{list-style:none;margin:0;padding:8px 0;position:absolute;top:100%;left:0;background:#fff;border:1px solid #ddd;border-radius:6px;min-width:180px;box-shadow:0 2px 8px rgba(0,0,0,0.1);display:none;z-index:1000}
.dropdown-menu-custom.open{display:block}
.dropdown-menu-custom li{margin:0}
.dropdown-menu-custom a{display:block;padding:10px 16px;color:var(--text);text-decoration:none}
.dropdown-menu-custom a:hover{background:#f5f5f5;text-decoration:none}




/* Book detail page */
.book-detail h1{font-size:2rem;margin-bottom:8px}
.book-detail .meta{font-size:1.1rem;color:var(--muted)}
.book-detail ul{padding-left:18px}
.book-detail ul li{margin-bottom:4px}

/* Tablet (768px - 1024px) */
@media (max-width:1024px){
  .card{grid-column:span 6}
  .card img{height:280px}
  .menu{gap:12px;font-size:.95rem}
  .table{font-size:.9rem}
  .table th,.table td{padding:8px}
}

/* Mobile (max 768px) */
@media (max-width:768px){
  .card{grid-column:span 12}
  .card img{height:240px}
  .nav{padding:12px 0}
  .brand{font-size:1.1rem}
  .menu{gap:8px;font-size:.9rem}
  .menu li{flex:1}
  .menu a{display:block}
  .section-header{flex-direction:column-reverse;align-items:flex-start}

  
  /* Responsive table - show as blocks on mobile */
  .table{font-size:.85rem;width:100%;display:block;overflow:visible}
  .table thead{display:none}
  .table tbody{display:block;width:100%}
  .table tr{display:block;border:1px solid #ddd;margin-bottom:16px;border-radius:6px;overflow:hidden}
  .table td{font-weight: bold;display:block;text-align:right;padding:8px 12px;position:relative;border:none;min-height:40px;word-break:break-word}
  .table td:before{content:attr(data-label);position:absolute;left:12px;font-weight:600;color:#666;text-align:left;font-size:.85rem}
  .table img{width:60px;height:80px;margin:4px 0}
  
  .actions{gap:4px}
  .actions button,.actions a{padding:6px 10px;font-size:.9rem}
  .form{max-width:100%}
  .filters input[type=text],.filters select{min-width:120px;font-size:.9rem}
  .filters{flex-direction:column}
  .filters input[type=text],.filters select{width:100%}
  .filters button{width:100%}
  .responsive-grid{grid-template-columns:1fr !important;gap:24px !important}
    .nav{flex-direction:row;align-items:center;justify-content:space-between;gap:12px}
  .brand{width:auto;margin-bottom:0;padding-bottom:0;border-bottom:none;order:1}
  .menu-toggle{display:block;order:2}
  .menu{flex-direction:column;width:100%;gap:0;display:none;order:3;flex-basis:100%}
  .menu.active{display:flex}
  .menu li{border-bottom:1px solid #eee;width:100%}
  .menu li:last-child{border-bottom:none}
  .menu a{display:block;padding:12px 0}
  .knopoverzicht{
  color:white; padding:8px 12px; border-radius:4px; cursor:pointer; font-size:.9rem; width:100%; display: flex; text-align: center 
  ; flex-direction: column; margin: 3px;}
  .paddingborder {padding-top: 24px; border-top: 1px solid gray;}
  
}


/* Small mobile (max 480px) */
@media (max-width:480px){
  .a {width: 100%;}
  .container{padding:0 12px}
  .brand{font-size:1rem}
  .menu{flex-direction:column;gap:6px}
  .menu li{width:100%}
  .site-header{margin-bottom:16px}
  .section-header{margin:16px 0;gap:8px}
  .grid{gap:12px}
  .table{font-size:.8rem}
  .table td{font-weight: bold;}
  .table th,.table td{padding:4px}
  .table img{max-width: 160px;max-height: 240px}
  .actions{gap:2px;flex-direction:column; width:100%;}
  .actions button,.actions a{padding:8px 6px;font-size:.8rem}
  .form{gap:10px}
  .form input[type=text],.form input[type=number],.form input[type=email],.form input[type=password],.form textarea,.form select,.form input[type=file]{padding:8px;font-size:16px}
  .form button{padding:12px 8px}
  h1{font-size:1.5rem}
  h2{font-size:1.2rem}
  h3{font-size:1.1rem}
  .responsive-grid{grid-template-columns:1fr !important;gap:24px !important}
  .knopoverzicht{
  color:white; padding:8px 12px; border-radius:4px; cursor:pointer; font-size:.9rem; width:100%; display: flex; text-align: center 
  ; flex-direction: column; margin: 3px;}
  .paddingborder {padding-top: 24px; border-top: 1px solid gray;}

}

/* Responsive grid for two-column layouts */
.responsive-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;max-width:1000px}