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

:root {
  --mint: #91C6BC;
  --teal: #4B9DA9;
  --cream: #F6F3C2;
  --orange: #E37434;
  --white: #ffffff;
  --text-dark: #2d4a47;
  --text-light: #fdfcf5;
  --teal-dark: #3d8490;
  --orange-dark: #c9612a;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: linear-gradient(135deg, var(--cream) 0%, #e8e5b0 100%);
  min-height: 100vh;
  color: var(--text-dark);
}

/* ============ PUBLIC PAGES ============ */

.container {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  color: var(--teal);
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.subtitle {
  color: var(--text-dark);
  font-size: 1.1rem;
  opacity: 0.8;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.category-selector {
  background: var(--white);
  padding: 1rem 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(75, 157, 169, 0.15);
  display: flex;
  align-items: center;
  gap: 1rem;
  border: 2px solid var(--mint);
}

.category-selector label {
  font-weight: 500;
  white-space: nowrap;
  color: var(--text-dark);
}

.category-selector select {
  padding: 0.5rem 1rem;
  border: 2px solid var(--mint);
  border-radius: 8px;
  font-size: 1rem;
  background: var(--white);
  cursor: pointer;
  min-width: 200px;
  color: var(--text-dark);
  transition: border-color 0.2s;
}

.category-selector select:focus {
  outline: none;
  border-color: var(--teal);
}

.fact-display {
  background: var(--white);
  padding: 2.5rem;
  border-radius: 16px;
  box-shadow: 0 8px 24px rgba(75, 157, 169, 0.15);
  max-width: 100%;
  width: 100%;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 2px solid var(--mint);
  border-left: 5px solid var(--orange);
}

.fact-display:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(75, 157, 169, 0.2);
}

.fact-display.loading {
  opacity: 0.7;
}

.fact-text {
  font-size: 1.4rem;
  line-height: 1.7;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.fact-meta {
  font-size: 0.9rem;
  color: var(--teal);
}

.btn {
  padding: 0.75rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
  box-shadow: 0 4px 12px rgba(227, 116, 52, 0.3);
}

.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(227, 116, 52, 0.4);
}

.btn-secondary {
  background: var(--mint);
  color: var(--text-dark);
}

.btn-secondary:hover {
  background: var(--teal);
  color: var(--white);
}

.btn-danger {
  background: #e57373;
  color: var(--white);
}

.btn-danger:hover {
  background: #d32f2f;
}

.btn-small {
  padding: 0.4rem 0.8rem;
  font-size: 0.85rem;
  border-radius: 6px;
}

footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1rem;
}

footer a {
  color: var(--teal);
  text-decoration: none;
  transition: color 0.2s;
}

footer a:hover {
  color: var(--orange);
}

/* ============ LOGIN PAGE ============ */

.login-form {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(75, 157, 169, 0.15);
  width: 100%;
  max-width: 400px;
  border: 2px solid var(--mint);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--mint);
  border-radius: 8px;
  font-size: 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(75, 157, 169, 0.2);
}

.error-message {
  color: #d32f2f;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  min-height: 1.2rem;
}

/* ============ ADMIN PAGES ============ */

.admin-container {
  display: flex;
  min-height: 100vh;
}

.admin-nav {
  width: 240px;
  background: var(--teal);
  color: var(--white);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.admin-nav h2 {
  margin-bottom: 2rem;
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 600;
}

.admin-nav ul {
  list-style: none;
  flex: 1;
}

.admin-nav li {
  margin-bottom: 0.25rem;
}

.admin-nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  transition: all 0.2s;
  font-weight: 500;
}

.admin-nav a:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--white);
}

.admin-nav a.active {
  background: var(--orange);
  color: var(--white);
}

.nav-footer {
  padding-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-footer a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
}

.nav-footer a:hover {
  color: var(--white);
}

.nav-footer .btn {
  width: 100%;
  text-align: center;
  padding: 0.5rem;
}

.admin-main {
  flex: 1;
  background: var(--cream);
  padding: 2rem;
}

.admin-main h1 {
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  font-weight: 600;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.header-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(75, 157, 169, 0.1);
  border: 2px solid var(--mint);
}

.stat-card h3 {
  font-size: 0.85rem;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--orange);
}

.quick-actions {
  background: var(--white);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(75, 157, 169, 0.1);
  border: 2px solid var(--mint);
}

.quick-actions h2 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: var(--text-dark);
  font-weight: 600;
}

.action-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ============ TABLES ============ */

.table-container {
  background: var(--white);
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(75, 157, 169, 0.1);
  overflow: hidden;
  border: 2px solid var(--mint);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--mint);
}

th {
  background: var(--cream);
  font-weight: 600;
  color: var(--text-dark);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

tr:hover {
  background: rgba(246, 243, 194, 0.5);
}

tr:last-child td {
  border-bottom: none;
}

.content-cell {
  max-width: 400px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ============ MODAL ============ */

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(75, 157, 169, 0.5);
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal.active {
  display: flex;
}

.modal-content {
  background: var(--white);
  padding: 2rem;
  border-radius: 12px;
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.2);
  border: 2px solid var(--mint);
}

.modal-content h2 {
  margin-bottom: 1.5rem;
  color: var(--text-dark);
  font-weight: 600;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 1.5rem;
}

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

@media (max-width: 768px) {
  .container {
    padding: 1rem;
  }

  header h1 {
    font-size: 2rem;
  }

  .fact-display {
    padding: 1.5rem;
  }

  .fact-text {
    font-size: 1.2rem;
  }

  .category-selector {
    flex-direction: column;
    border-radius: 12px;
    padding: 1rem;
  }

  .admin-container {
    flex-direction: column;
  }

  .admin-nav {
    width: 100%;
    padding: 1rem;
  }

  .admin-nav ul {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
  }

  .admin-nav li {
    margin-bottom: 0;
  }

  .page-header {
    flex-direction: column;
    gap: 1rem;
    align-items: flex-start;
  }

  .table-container {
    overflow-x: auto;
  }

  table {
    min-width: 600px;
  }
}