/* ============================================================
   LEGO TRACKER — Stylesheet (Mobile First)
   Breakpoints:
     default   : mobiel  (< 480px)
     min 480px : grote telefoons
     min 640px : tablet-portrait / landschap telefoon
     min 768px : tablet
     min 1024px: desktop
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800;900&display=swap');

/* ============================================================
   CSS VARIABELEN
   ============================================================ */
:root {
  --lego-red:        #DA291C;
  --lego-yellow:     #FFD700;
  --lego-blue:       #006CB7;
  --lego-dark:       #1a1a1a;
  --lego-gray:       #f5f5f5;
  --lego-white:      #ffffff;
  --lego-green:      #00a650;
  --lego-orange:     #f07800;
  --lego-dark-red:   #a3160e;
  --lego-light-blue: #e8f4fd;
  --lego-border:     #e0e0e0;

  --shadow-sm:  0 2px 6px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 14px rgba(0,0,0,0.12);
  --shadow-lg:  0 8px 28px rgba(0,0,0,0.18);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --transition: 0.2s ease;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

@media (min-width: 640px) {
  html { font-size: 16px; }
}

body {
  font-family: 'Nunito', 'Segoe UI', Arial, sans-serif;
  background-color: var(--lego-gray);
  background-image: repeating-radial-gradient(
    circle at 12px 12px,
    rgba(0,0,0,0.04) 0px,
    rgba(0,0,0,0.04) 4px,
    transparent 4px,
    transparent 24px
  );
  color: var(--lego-dark);
  line-height: 1.6;
  min-height: 100vh;
  /* Voorkom horizontaal scrollen op mobiel */
  overflow-x: hidden;
}

a {
  color: var(--lego-blue);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--lego-red);
  text-decoration: underline;
}

ul, ol { list-style: none; }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

input, button, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 14px;
}

/* Smalle container voor formulierpagina's (add_set, login) */
.container-narrow {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 14px;
}

@media (min-width: 640px) {
  .container        { padding: 0 20px; }
  .container-narrow { padding: 0 20px; }
}

/* ============================================================
   NAVBAR — MOBIEL FIRST
   Hamburger zichtbaar op mobiel, verborgen op tablet+
   ============================================================ */
.navbar {
  background-color: var(--lego-red);
  box-shadow: 0 4px 12px rgba(0,0,0,0.25);
  position: sticky;
  top: 0;
  z-index: 1000;
  /* Nodig zodat het uitklapmenu correct positioneert */
  position: relative;
}

@media (min-width: 768px) {
  .navbar { position: sticky; }
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 14px;
  max-width: 1200px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .navbar-inner { height: 64px; padding: 0 20px; }
}

.navbar-logo {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--lego-yellow);
  text-decoration: none;
  letter-spacing: 1px;
  text-shadow: 2px 2px 0 rgba(0,0,0,0.2);
  display: flex;
  align-items: center;
  gap: 6px;
  /* Zorg dat logo niet weggedrukt wordt door nav */
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .navbar-logo { font-size: 1.6rem; }
}

.navbar-logo:hover {
  color: var(--lego-yellow);
  text-decoration: none;
  filter: brightness(1.1);
}

/* Hamburger-knop: standaard zichtbaar op mobiel */
.navbar-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: var(--radius-sm);
  color: var(--lego-white);
  font-size: 1.3rem;
  width: 40px;
  height: 40px;
  cursor: pointer;
  transition: background var(--transition);
  /* Minimale touch-target (44px aanbevolen, 40px acceptabel) */
  min-width: 40px;
}

.navbar-toggle:hover {
  background-color: rgba(255,255,255,0.2);
}

/* Navigatiemenu: standaard verborgen op mobiel (uitklap-dropdown) */
.navbar-nav {
  display: none;
  position: absolute;
  top: 56px;
  left: 0;
  right: 0;
  background-color: var(--lego-red);
  flex-direction: column;
  padding: 12px;
  gap: 2px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.25);
  z-index: 999;
}

.navbar-nav.is-open {
  display: flex;
}

.navbar-nav a {
  color: var(--lego-white);
  font-weight: 700;
  /* Touch-target: minimaal 44px hoogte */
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  text-decoration: none;
  font-size: 0.95rem;
  display: block;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  background-color: rgba(255,255,255,0.2);
  color: var(--lego-yellow);
  text-decoration: none;
}

.navbar-nav a.nav-btn {
  background-color: var(--lego-yellow);
  color: var(--lego-dark);
  margin-top: 4px;
}

.navbar-nav a.nav-btn:hover {
  background-color: #e6c200;
  color: var(--lego-dark);
}

/* Tablet en groter: hamburgermenu verborgen, nav horizontaal */
@media (min-width: 768px) {
  .navbar-toggle { display: none; }

  .navbar-nav {
    display: flex;
    position: static;
    flex-direction: row;
    background: none;
    padding: 0;
    gap: 6px;
    box-shadow: none;
    z-index: auto;
    /* Reset top */
    top: auto;
  }

  .navbar-nav a {
    padding: 6px 14px;
    display: inline-flex;
    align-items: center;
  }

  .navbar-nav a.nav-btn {
    padding: 6px 16px;
    margin-top: 0;
  }
}

/* ============================================================
   PAGINA-INHOUD
   ============================================================ */
.main-content {
  padding: 20px 0 40px;
}

@media (min-width: 1024px) {
  .main-content { padding: 32px 0 60px; }
}

/* ============================================================
   PAGINA-HEADER
   ============================================================ */
.page-header {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 20px;
}

.page-header h1,
.page-header h2 {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--lego-dark);
}

.page-header .header-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .page-header {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 28px;
  }

  .page-header h1,
  .page-header h2 { font-size: 2rem; }
}

/* ============================================================
   BROODKRUIMELS
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: #888;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--lego-blue); }
.breadcrumb-sep { color: #bbb; }

/* ============================================================
   STATS-BAR — mobiel: 2 kolommen naast elkaar
   ============================================================ */
.stats-bar {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .stats-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 32px;
  }
}

.stat-card {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 16px 14px;
  text-align: center;
  border-bottom: 4px solid var(--lego-red);
  transition: transform var(--transition), box-shadow var(--transition);
}

@media (min-width: 640px) {
  .stat-card {
    flex: 1;
    min-width: 130px;
    padding: 20px 28px;
  }
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-card:nth-child(2) { border-bottom-color: var(--lego-blue); }
.stat-card:nth-child(3) { border-bottom-color: var(--lego-green); }
.stat-card:nth-child(4) { border-bottom-color: var(--lego-yellow); }

/* Classes die in de PHP worden gebruikt */
.stat-card.stat-built   { border-bottom-color: var(--lego-blue); }
.stat-card.stat-unbuilt { border-bottom-color: var(--lego-green); }

.stat-card .stat-number,
.stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--lego-red);
  line-height: 1;
}

.stat-card:nth-child(2) .stat-number,
.stat-card:nth-child(2) .stat-value { color: var(--lego-blue); }
.stat-card:nth-child(3) .stat-number,
.stat-card:nth-child(3) .stat-value { color: var(--lego-green); }
.stat-card:nth-child(4) .stat-number,
.stat-card:nth-child(4) .stat-value { color: var(--lego-dark); }

.stat-card.stat-built   .stat-number { color: var(--lego-blue); }
.stat-card.stat-unbuilt .stat-number { color: var(--lego-green); }

@media (min-width: 640px) {
  .stat-card .stat-number,
  .stat-card .stat-value { font-size: 2.2rem; }
}

.stat-card .stat-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: #888;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

/* ============================================================
   GRID — sets-tegels
   mobiel: 1 kolom → tablet: 2 → desktop: 3
   ============================================================ */
.grid,
.sets-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

@media (min-width: 480px) {
  .grid,
  .sets-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid,
  .sets-grid { grid-template-columns: repeat(3, 1fr); gap: 22px; }
}

/* ============================================================
   SET-KAARTEN
   ============================================================ */
.set-card {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.set-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  text-decoration: none;
  color: inherit;
}

@media (min-width: 1024px) {
  .set-card:hover { transform: translateY(-6px); }
}

.set-card-image {
  position: relative;
  width: 100%;
  height: 180px;
  background: #f9f9f9;
  border-bottom: 1px solid var(--lego-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.set-card-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 10px;
}

.set-card-no-image {
  font-size: 3rem;
  color: #ccc;
}

.set-card-image .badge {
  position: absolute;
  top: 8px;
  right: 8px;
}

.set-card-body {
  padding: 14px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.set-card-name {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--lego-dark);
  line-height: 1.3;
}

.set-card-number {
  font-size: 0.8rem;
  color: #999;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.set-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 10px;
  margin-top: 4px;
}

/* Legacy klassen (dashboard gebruikt deze nog) */
.set-image {
  width: 100%;
  height: 180px;
  object-fit: contain;
  background-color: #f9f9f9;
  border-bottom: 1px solid var(--lego-border);
  padding: 10px;
}

.set-image-placeholder {
  width: 100%;
  height: 180px;
  background: linear-gradient(135deg, #f0f0f0 0%, #e0e0e0 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: #ccc;
  border-bottom: 1px solid var(--lego-border);
}

@media (min-width: 640px) {
  .set-image,
  .set-image-placeholder { height: 200px; }
  .set-card-image         { height: 200px; }
  .set-card-body          { padding: 16px; }
  .set-card-name          { font-size: 1rem; }
}

/* ============================================================
   LIJST-WEERGAVE (dashboard)
   ============================================================ */
.sets-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.set-list-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 12px;
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--transition), transform var(--transition);
}

.set-list-item:hover {
  box-shadow: var(--shadow-md);
  text-decoration: none;
  color: inherit;
}

@media (min-width: 640px) {
  .set-list-item { padding: 14px 18px; gap: 16px; }
  .set-list-item:hover { transform: translateX(3px); }
}

.set-list-thumb {
  width: 60px;
  height: 46px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--lego-gray);
  display: flex;
  align-items: center;
  justify-content: center;
}

.set-list-thumb img { width: 100%; height: 100%; object-fit: contain; }
.set-list-thumb .no-img { font-size: 1.4rem; }

@media (min-width: 640px) {
  .set-list-thumb { width: 72px; height: 54px; }
}

.set-list-info { flex: 1; min-width: 0; }

.set-list-name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--lego-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.set-list-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 3px;
  font-size: 0.8rem;
  color: #666;
}

.set-list-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  flex-shrink: 0;
}

/* ============================================================
   KAART / PANEEL
   ============================================================ */
.card {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.card-header {
  padding: 14px 16px;
  border-bottom: 2px solid var(--lego-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.card-header h3 {
  font-weight: 900;
  font-size: 1rem;
  color: var(--lego-dark);
}

.card-body,
.card-content {
  padding: 16px;
}

@media (min-width: 640px) {
  .card-header  { padding: 16px 20px; }
  .card-body,
  .card-content { padding: 20px; }
}

.card-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--lego-border);
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 8px;
  flex-wrap: wrap;
}

@media (min-width: 480px) {
  .card-footer {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.card-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.card-title {
  font-size: 1rem;
  font-weight: 800;
  color: var(--lego-dark);
  line-height: 1.3;
}

.card-subtitle { font-size: 0.85rem; color: #666; font-weight: 600; }
.card-number   { font-size: 0.8rem; color: #999; font-weight: 700; letter-spacing: 0.5px; text-transform: uppercase; }

/* ============================================================
   BADGES
   ============================================================ */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.badge-built    { background-color: #d4f7e0; color: #006b2b; }
.badge-unbuilt  { background-color: #fff3cd; color: #8a5c00; }
.badge-wishlist { background-color: #e8f0fe; color: #1a56b0; }
.badge-for-sale { background-color: #fde8e8; color: #b01a1a; }
.badge-parts-only { background-color: #f0e8fe; color: #6b1ab0; }

/* ============================================================
   THEMA-TAG
   ============================================================ */
.theme-tag {
  display: inline-block;
  background-color: var(--lego-yellow);
  color: var(--lego-dark);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 9px;
  border-radius: var(--radius-sm);
  letter-spacing: 0.3px;
}

.theme-tag.theme-city      { background-color: #c8e6ff; color: #004e8c; }
.theme-tag.theme-technic   { background-color: #ffd6b0; color: #7a3600; }
.theme-tag.theme-star-wars { background-color: #2a2a2a; color: #ffe600; }
.theme-tag.theme-creator   { background-color: #d0f5e0; color: #005c28; }
.theme-tag.theme-ninjago   { background-color: #ffe0f0; color: #8c004e; }
.theme-tag.theme-friends   { background-color: #ffe0f8; color: #8c0070; }

/* ============================================================
   META-ITEM (set-kaart details)
   ============================================================ */
.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  color: #555;
  font-weight: 700;
}

.meta-label {
  color: #aaa;
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.5px;
}

/* ============================================================
   KNOPPEN
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.9rem;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: transform var(--transition), box-shadow var(--transition),
              background var(--transition), filter var(--transition);
  white-space: nowrap;
  letter-spacing: 0.3px;
  /* Touch-target: minimaal 44px hoogte */
  min-height: 44px;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.btn:active {
  transform: translateY(0);
  box-shadow: none;
}

/* Op mobiel volledige breedte wanneer .btn-block */
.btn-block {
  width: 100%;
  display: flex;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
  min-height: 36px;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 1rem;
}

@media (min-width: 640px) {
  .btn    { padding: 9px 20px; }
  .btn-lg { padding: 12px 28px; }
}

.btn-primary   { background-color: var(--lego-red);      color: var(--lego-white); }
.btn-primary:hover { background-color: #c02318; color: var(--lego-white); }

.btn-secondary { background-color: var(--lego-blue);     color: var(--lego-white); }
.btn-secondary:hover { background-color: #005a9c; color: var(--lego-white); }

.btn-danger    { background-color: var(--lego-dark-red); color: var(--lego-white); }
.btn-danger:hover { background-color: #7d100a; color: var(--lego-white); }

.btn-warning   { background-color: var(--lego-yellow);   color: var(--lego-dark); }
.btn-warning:hover { background-color: #e6c200; color: var(--lego-dark); }

.btn-success   { background-color: var(--lego-green);    color: var(--lego-white); }
.btn-success:hover { background-color: #008540; color: var(--lego-white); }

.btn-outline {
  background-color: transparent;
  border: 2px solid var(--lego-blue);
  color: var(--lego-blue);
}

.btn-outline:hover {
  background-color: var(--lego-blue);
  color: var(--lego-white);
}

.btn-ghost {
  background-color: transparent;
  color: #666;
  border: 2px solid #ddd;
}

.btn-ghost:hover {
  background-color: #f0f0f0;
  color: var(--lego-dark);
}

/* ============================================================
   FORMULIEREN
   ============================================================ */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 800;
  margin-bottom: 6px;
  color: var(--lego-dark);
  font-size: 0.9rem;
}

.form-group label .required {
  color: var(--lego-red);
  margin-left: 2px;
}

.form-control,
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--lego-border);
  border-radius: var(--radius-sm);
  background-color: var(--lego-white);
  color: var(--lego-dark);
  font-size: 1rem;  /* Voorkomt auto-zoom op iOS (Safari zoomt in bij < 16px) */
  font-weight: 600;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  /* Touch-target: min 44px hoogte */
  min-height: 44px;
}

.form-control:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--lego-blue);
  box-shadow: 0 0 0 3px rgba(0,108,183,0.15);
}

.form-control.is-invalid { border-color: var(--lego-red);   box-shadow: 0 0 0 3px rgba(218,41,28,0.12); }
.form-control.is-valid   { border-color: var(--lego-green); }

.form-error {
  color: var(--lego-red);
  font-size: 0.82rem;
  font-weight: 700;
  margin-top: 4px;
  display: none;
}

.form-error.visible { display: block; }

.form-hint {
  color: #888;
  font-size: 0.82rem;
  margin-top: 4px;
}

select.form-control,
.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

textarea.form-control,
.form-group textarea {
  resize: vertical;
  min-height: 100px;
  min-height: auto; /* Overschrijf min-height van form-control */
}

/* Form-rij: standaard gestapeld op mobiel, naast elkaar op tablet+ */
.form-row {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-row .form-group { flex: 1; }

@media (min-width: 640px) {
  .form-row {
    flex-direction: row;
    gap: 16px;
  }
}

/* Input met knop naast elkaar (setnummer invoer) */
.input-with-button {
  display: flex;
  gap: 8px;
}

.input-with-button input { flex: 1; }

/* ============================================================
   FORMULIERPAGINA: STAPPER (add_set)
   ============================================================ */
.steps-indicator {
  display: flex;
  align-items: center;
  margin-bottom: 24px;
  gap: 0;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--lego-border);
  color: #888;
  font-weight: 900;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.step-active .step-number {
  background: var(--lego-red);
  color: var(--lego-white);
}

.step-done .step-number {
  background: var(--lego-green);
  color: var(--lego-white);
}

.step-label { font-size: 0.85rem; font-weight: 700; color: #888; }
.step-active .step-label { color: var(--lego-red); }
.step-done   .step-label { color: var(--lego-green); }

.step-connector {
  flex: 1;
  height: 2px;
  background: var(--lego-border);
  margin: 0 8px;
}

/* Set-preview (bevestigingsstap) */
.set-preview {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 20px;
}

.set-preview-image {
  width: 100%;
  max-width: 240px;
  margin: 0 auto;
}

.set-preview-img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
  border: 2px solid var(--lego-border);
}

.set-preview-no-img {
  width: 100%;
  aspect-ratio: 4/3;
  background: #f0f0f0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.set-preview-info h3 {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 12px;
}

@media (min-width: 640px) {
  .set-preview {
    flex-direction: row;
    align-items: flex-start;
  }

  .set-preview-image {
    width: 200px;
    flex-shrink: 0;
    margin: 0;
  }

  .set-preview-info { flex: 1; }
}

.info-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.info-table th { text-align: left; padding: 5px 12px 5px 0; color: #888; font-weight: 700; width: 40%; white-space: nowrap; }
.info-table td { padding: 5px 0; font-weight: 700; }

.form-intro { color: #555; margin-bottom: 18px; font-size: 0.95rem; }
.divider { border: none; border-top: 1px solid var(--lego-border); margin: 20px 0; }
.form-actions { display: flex; gap: 10px; justify-content: flex-end; flex-wrap: wrap; }

/* ============================================================
   INLOGPAGINA / AUTH
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 14px;
}

.auth-container {
  width: 100%;
  max-width: 440px;
}

.auth-card {
  background: var(--lego-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px 20px;
  width: 100%;
}

@media (min-width: 480px) {
  .auth-card { padding: 36px 40px; }
}

.auth-logo {
  text-align: center;
  margin-bottom: 24px;
}

/* Lego stud decoratie-element */
.lego-stud-logo {
  width: 56px;
  height: 56px;
  background: var(--lego-red);
  border-radius: 50%;
  margin: 0 auto 12px;
  box-shadow: 0 4px 0 rgba(0,0,0,0.3), inset 0 2px 4px rgba(255,255,255,0.2);
  position: relative;
}

.lego-stud-logo::after {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.2);
}

.auth-logo h1 {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--lego-red);
  letter-spacing: 2px;
  text-shadow: 3px 3px 0 var(--lego-yellow);
}

.auth-tagline {
  font-size: 0.88rem;
  color: #888;
  font-weight: 700;
  margin-top: 4px;
}

.auth-logo .logo-text {
  font-size: 2rem;
  font-weight: 900;
  color: var(--lego-red);
  letter-spacing: 2px;
  text-shadow: 3px 3px 0 var(--lego-yellow);
}

.auth-logo .logo-sub {
  font-size: 0.9rem;
  color: #888;
  font-weight: 700;
  margin-top: 4px;
}

.auth-card h2 {
  font-size: 1.4rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: 20px;
  color: var(--lego-dark);
}

.auth-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 0.88rem;
  color: #666;
}

.auth-footer {
  text-align: center;
  margin-top: 18px;
  font-size: 0.88rem;
  color: #666;
}

.auth-divider {
  text-align: center;
  margin: 18px 0;
  color: #aaa;
  font-size: 0.85rem;
  font-weight: 700;
  position: relative;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 42%;
  height: 1px;
  background: var(--lego-border);
}

.auth-divider::before { left: 0; }
.auth-divider::after  { right: 0; }

/* ============================================================
   FLASH-BERICHTEN
   ============================================================ */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.92rem;
  margin-bottom: 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border-left: 5px solid transparent;
  transition: opacity 0.5s ease;
}

.alert.fade-out { opacity: 0; }

.alert-icon  { font-size: 1.2rem; flex-shrink: 0; margin-top: 1px; }
.alert-text  { flex: 1; }

.alert-close {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  color: inherit;
  opacity: 0.6;
  padding: 0 4px;
  transition: opacity var(--transition);
  flex-shrink: 0;
}

.alert-close:hover { opacity: 1; }

.alert-success { background-color: #d4edda; color: #155724; border-left-color: var(--lego-green); }
.alert-error   { background-color: #f8d7da; color: #721c24; border-left-color: var(--lego-red); }
.alert-info    { background-color: var(--lego-light-blue); color: #0c5464; border-left-color: var(--lego-blue); }
.alert-warning { background-color: #fff3cd; color: #856404; border-left-color: var(--lego-yellow); }

/* ============================================================
   SET-DETAIL PAGINA
   mobiel: gestapeld, desktop: image links / info rechts
   ============================================================ */
.set-detail {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

@media (min-width: 768px) {
  .set-detail { grid-template-columns: 320px 1fr; gap: 28px; }
}

@media (min-width: 1024px) {
  .set-detail { grid-template-columns: 380px 1fr; }
}

.set-detail-image {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.set-detail-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: contain;
  padding: 16px;
  background: #f9f9f9;
}

.set-detail-info {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
}

@media (min-width: 640px) {
  .set-detail-info { padding: 28px; }
}

.set-detail-info h1 {
  font-size: 1.4rem;
  font-weight: 900;
  margin-bottom: 6px;
}

@media (min-width: 640px) {
  .set-detail-info h1 { font-size: 1.7rem; }
}

.set-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

/* ============================================================
   HANDLEIDINGEN LIJST
   ============================================================ */
.manual-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
}

.manual-list li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--lego-gray);
  border-radius: var(--radius-sm);
  color: var(--lego-blue);
  font-weight: 700;
  font-size: 0.9rem;
  border: 2px solid var(--lego-border);
  transition: background var(--transition), border-color var(--transition);
  /* Touch-target */
  min-height: 44px;
}

.manual-list li a:hover {
  background: var(--lego-light-blue);
  border-color: var(--lego-blue);
  text-decoration: none;
}

.manual-list li a .pdf-icon {
  color: var(--lego-red);
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* ============================================================
   TABEL (onderdelen)
   ============================================================ */
.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--lego-white);
  font-size: 0.85rem;
}

@media (min-width: 640px) {
  table { font-size: 0.9rem; }
}

thead {
  background-color: var(--lego-red);
  color: var(--lego-white);
}

thead th {
  padding: 11px 12px;
  text-align: left;
  font-weight: 800;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

@media (min-width: 640px) {
  thead th { padding: 13px 16px; font-size: 0.82rem; }
}

tbody tr {
  border-bottom: 1px solid var(--lego-border);
  transition: background var(--transition);
}

tbody tr:hover { background-color: #fafafa; }

tbody td {
  padding: 10px 12px;
  color: var(--lego-dark);
  font-weight: 600;
  vertical-align: middle;
}

@media (min-width: 640px) {
  tbody td { padding: 12px 16px; }
}

/* ============================================================
   ZOEKBALK
   ============================================================ */
.search-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-direction: column;
}

.search-bar .form-control { width: 100%; }

@media (min-width: 480px) {
  .search-bar {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .search-bar .form-control {
    flex: 1;
    min-width: 180px;
  }
}

.filter-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar label {
  font-weight: 800;
  font-size: 0.85rem;
  color: #666;
  white-space: nowrap;
}

/* ============================================================
   PROFIELPAGINA
   ============================================================ */
.profile-section {
  background: var(--lego-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  margin-bottom: 20px;
}

@media (min-width: 640px) {
  .profile-section { padding: 28px; margin-bottom: 24px; }
}

.profile-section h2 {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--lego-border);
  color: var(--lego-dark);
}

.qr-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

@media (min-width: 480px) {
  .qr-container {
    flex-direction: row;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
  }
}

.qr-code {
  border: 3px solid var(--lego-border);
  border-radius: var(--radius-sm);
  padding: 8px;
  background: var(--lego-white);
  flex-shrink: 0;
}

.qr-uri-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.qr-uri-input {
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  color: #444;
  background: #f5f5f5;
  border: 1px solid #ddd;
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============================================================
   PAGINERING
   ============================================================ */
.pagination {
  display: flex;
  gap: 4px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 10px;
  border-radius: var(--radius-sm);
  font-weight: 800;
  font-size: 0.88rem;
  transition: background var(--transition), color var(--transition);
  border: 2px solid var(--lego-border);
  color: var(--lego-dark);
  background: var(--lego-white);
  text-decoration: none;
}

@media (min-width: 640px) {
  .pagination a,
  .pagination span {
    min-width: 38px;
    height: 38px;
    padding: 0 12px;
    font-size: 0.9rem;
  }
}

.pagination a:hover {
  background: var(--lego-red);
  color: var(--lego-white);
  border-color: var(--lego-red);
  text-decoration: none;
}

.pagination .current {
  background: var(--lego-red);
  color: var(--lego-white);
  border-color: var(--lego-red);
}

.pagination .disabled {
  opacity: 0.4;
  pointer-events: none;
}

.pagination span.dots {
  border: none;
  color: #aaa;
  min-width: auto;
}

/* ============================================================
   LEGE STAAT
   ============================================================ */
.empty-state {
  text-align: center;
  padding: 40px 16px;
  color: #aaa;
}

.empty-state .empty-icon,
.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: 14px;
}

.empty-state h3 {
  font-size: 1.2rem;
  font-weight: 900;
  color: #888;
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.9rem;
  margin-bottom: 18px;
}

@media (min-width: 640px) {
  .empty-state { padding: 60px 20px; }
  .empty-state .empty-icon,
  .empty-state-icon { font-size: 4rem; }
}

/* ============================================================
   LAADSPINNER
   ============================================================ */
.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 4px solid rgba(0,108,183,0.2);
  border-top-color: var(--lego-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm { width: 18px; height: 18px; border-width: 3px; }
.spinner-lg { width: 52px; height: 52px; border-width: 5px; }

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 40px 20px;
  color: #888;
  font-weight: 700;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer,
.footer {
  background: var(--lego-dark);
  color: rgba(255,255,255,0.6);
  text-align: center;
  padding: 18px 14px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-top: auto;
}

.site-footer a,
.footer a { color: var(--lego-yellow); }

/* ============================================================
   UTILITY KLASSEN
   ============================================================ */
.text-center  { text-align: center; }
.text-right   { text-align: right; }
.text-muted   { color: #888; font-size: 0.88rem; }
.text-small   { font-size: 0.82rem; }
.font-bold    { font-weight: 800; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.gap-1        { gap: 8px; }
.gap-2        { gap: 16px; }
.flex-wrap    { flex-wrap: wrap; }
.w-100        { width: 100%; }
.hidden       { display: none !important; }