* {
  box-sizing: border-box;
}

:root {
  --admin-dark: #050b18;
  --admin-navy: #163c7a;
  --admin-blue: #1f6feb;
  --admin-blue-hover: #1757b7;
  --admin-red: #ff3b3b;
  --admin-red-hover: #c62828;
  --admin-cyan: #60d8ff;
  --admin-gold: #ffe45c;
  --admin-text: #182033;
  --admin-muted: #64748b;
  --admin-panel: rgba(255, 255, 255, 0.96);
  --admin-border: rgba(255, 255, 255, 0.45);
  --admin-success: #138a4b;
  --admin-error: #c62828;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", Arial, sans-serif;
  background:
    radial-gradient(
      circle at 10% 10%,
      rgba(255, 59, 59, 0.24),
      transparent 28%
    ),
    radial-gradient(
      circle at 90% 5%,
      rgba(31, 111, 235, 0.35),
      transparent 30%
    ),
    radial-gradient(
      circle at 50% 100%,
      rgba(96, 216, 255, 0.16),
      transparent 35%
    ),
    linear-gradient(
      145deg,
      var(--admin-dark),
      var(--admin-navy) 55%,
      #020611
    );
  color: white;
}

/* =========================
   HEADER
========================= */

.admin-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.5rem 2rem;
  border-bottom: 2px solid rgba(255, 255, 255, 0.15);
  background: rgba(5, 11, 24, 0.85);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
}

.admin-menu-header h1 {
  margin: 0 0 0.4rem;
  font-size: clamp(1.8rem, 5vw, 2.7rem);
}

.admin-menu-header p {
  margin: 0;
  color: rgba(255, 255, 255, 0.72);
}

.admin-header-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.back-btn,
.logout-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.8rem 1.1rem;
  border-radius: 14px;
  color: white;
  text-decoration: none;
  font-weight: 900;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.back-btn {
  background:
    linear-gradient(
      145deg,
      var(--admin-blue),
      var(--admin-cyan)
    );
}

.logout-btn {
  background:
    linear-gradient(
      145deg,
      var(--admin-red),
      var(--admin-red-hover)
    );
}

.back-btn:hover,
.logout-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

/* =========================
   MAIN
========================= */

.coloring-admin-wrapper {
  width: min(1200px, calc(100% - 2rem));
  margin: 2rem auto 4rem;
}

.coloring-admin-panel {
  margin-bottom: 2rem;
  padding: 2rem;
  border: 3px solid var(--admin-border);
  border-radius: 28px;
  color: var(--admin-text);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.98),
      rgba(235, 245, 255, 0.94)
    );
  box-shadow:
    0 25px 65px rgba(0, 0, 0, 0.35),
    inset 0 0 25px rgba(255, 255, 255, 0.65);
}

.coloring-admin-panel h2 {
  margin: 0 0 1.5rem;
  color: var(--admin-text);
  font-size: 1.8rem;
}

/* =========================
   FEEDBACK
========================= */

.admin-feedback {
  margin: 0 0 1.5rem;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  font-weight: 800;
  line-height: 1.5;
}

.admin-feedback.success {
  border: 2px solid rgba(19, 138, 75, 0.25);
  color: var(--admin-success);
  background: rgba(19, 138, 75, 0.1);
}

.admin-feedback.error {
  border: 2px solid rgba(198, 40, 40, 0.25);
  color: var(--admin-error);
  background: rgba(198, 40, 40, 0.1);
}

/* =========================
   UPLOAD FORM
========================= */

.coloring-upload-form {
  display: grid;
  gap: 1rem;
}

.coloring-upload-form label {
  margin-top: 0.5rem;
  color: var(--admin-text);
  font-weight: 900;
}

.coloring-upload-form input[type="text"],
.coloring-upload-form textarea,
.coloring-upload-form input[type="file"] {
  width: 100%;
  padding: 1rem;
  border: 2px solid #c7d8f5;
  border-radius: 16px;
  color: var(--admin-text);
  background: white;
  font: inherit;
}

.coloring-upload-form textarea {
  min-height: 120px;
  resize: vertical;
}

.coloring-upload-form input:focus,
.coloring-upload-form textarea:focus {
  outline: none;
  border-color: var(--admin-blue);
  box-shadow:
    0 0 0 4px rgba(31, 111, 235, 0.14);
}

.coloring-upload-form small {
  color: var(--admin-muted);
  line-height: 1.5;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.6rem;
  cursor: pointer;
}

.checkbox-row input {
  width: 20px;
  height: 20px;
  accent-color: var(--admin-blue);
}

.coloring-upload-form button[type="submit"] {
  margin-top: 1rem;
  padding: 1rem 1.4rem;
  border: none;
  border-radius: 18px;
  color: white;
  background:
    linear-gradient(
      90deg,
      var(--admin-red),
      var(--admin-blue)
    );
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 9px 0 rgba(0, 0, 0, 0.25);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.coloring-upload-form button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 0 rgba(0, 0, 0, 0.2);
}

/* =========================
   EXISTING COLORING PAGES
========================= */
.coloring-admin-card[hidden] {
  display: none !important;
}

.coloring-admin-grid {
  display: grid !important;
  grid-template-columns: repeat(
    auto-fill,
    180px
  );
  justify-content: start;
  align-items: start;
  gap: 1rem;
  width: 100%;
}

.coloring-admin-card {
  display: flex;
  flex-direction: column;
  width: 180px;
  min-width: 0;
  overflow: hidden;
  border: 2px solid #d9e5f6;
  border-radius: 16px;
  background: white;
  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.14);
}

.coloring-admin-card > img {
  width: 100%;
  height: 130px;
  display: block;
  object-fit: cover;
}

.coloring-admin-card-content {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 0.7rem;
}

.coloring-admin-card-content h3 {
  margin: 0;
  font-size: 0.95rem;
}

.coloring-admin-card-content p {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.3;
}

.coloring-admin-card-content a {
  display: inline-flex;
  width: fit-content;
  color: var(--admin-blue);
  font-weight: 900;
  text-decoration: none;
}

.coloring-admin-card-content a:hover {
  text-decoration: underline;
}

.coloring-admin-card-content a,
.coloring-admin-card-content button {
  font-size: 0.75rem;
}

.coloring-admin-card-content form {
  margin-top: auto;
}

.danger-btn {
  width: 100%;
  padding: 0.85rem 1rem;
  border: none;
  border-radius: 14px;
  color: white;
  background:
    linear-gradient(
      145deg,
      var(--admin-red),
      var(--admin-red-hover)
    );
  font: inherit;
  font-weight: 900;
  cursor: pointer;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.danger-btn:hover {
  transform: translateY(-2px);
  box-shadow:
    0 10px 24px rgba(198, 40, 40, 0.3);
}

.kleurplaatsearchbar {
  border-radius: 25px;
  width: 100%;
  padding: 10px 10px;
  margin-bottom: 10px;
  border: var(--admin-navy) 2px solid;
  box-shadow: inset 0px 0px 2px 2px;
}


/* =========================
   SEARCH
========================= */

.coloring-search {
  max-width: 700px;
  margin: 0 auto 2rem;
}

.coloring-search label {
  display: block;
  margin-bottom: 0.6rem;
  color: white;
  font-weight: 900;
  text-align: center;
}

.coloring-search input {
  width: 100%;
  padding: 1rem 1.2rem;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 18px;
  color: #182033;
  background: rgba(255, 255, 255, 0.96);
  font: inherit;
  box-shadow:
    0 12px 30px rgba(0, 0, 0, 0.25);
}

.coloring-search input:focus {
  outline: none;
  border-color: var(--coloring-cyan);
  box-shadow:
    0 0 0 4px rgba(96, 216, 255, 0.2),
    0 12px 30px rgba(0, 0, 0, 0.25);
}

.coloring-search-empty {
  margin: 1rem auto 2rem;
  padding: 1rem;
  max-width: 700px;
  border-radius: 16px;
  text-align: center;
  color: #182033;
  background: rgba(255, 255, 255, 0.94);
  font-weight: 800;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 760px) {
  .admin-menu-header {
    flex-direction: column;
    align-items: stretch;
    padding: 1.25rem;
    text-align: center;
  }

  .admin-header-actions {
    justify-content: center;
  }

  .coloring-admin-wrapper {
    width: min(100% - 1rem, 1200px);
    margin-top: 1rem;
  }

  .coloring-admin-panel {
    padding: 1.25rem;
    border-radius: 22px;
  }
}

@media (max-width: 520px) {
  .admin-header-actions {
    flex-direction: column;
  }

  .back-btn,
  .logout-btn {
    width: 100%;
  }

  .coloring-admin-grid {
    grid-template-columns: 1fr;
  }
}