:root {
  --bg: #ffffff;
  --text: #222222;
  --card-bg: #f9f9f9;
  --border: #dddddd;
  --accent: #007bff;
}

html {
  scroll-behavior: smooth;
}

body.theme-dark {
  --bg: #1e1e2f;
  --text: #f0f0f0;
  --card-bg: #2a2a3d;
  --border: #444;
  --accent: #4dabf7;
}

/*  BASE STYLES */
body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background 0.3s, color 0.3s;
}

.container {
  padding: 2rem;
  max-width: 1200px;
  margin: auto;
}

/* NAVBAR */
.navbar {
  display: flex;
  align-items: center;
  background: var(--card-bg);
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  justify-content: flex-start; 
  gap: 1rem; 
}

.navbar a {
  margin-right: 1rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  transition: color 0.2s;
}
.navbar a:hover {
  color: var(--accent);
}
.navbar button {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}
.card:hover {
  transform: translateY(-5px);
}
.card h2 {
  margin: 0;
  font-size: 2.5rem;
  color: var(--accent);
}
.card p {
  margin-top: 0.5rem;
  font-size: 1.1rem;
  opacity: 0.8;
}

/* LOADER */
.loader {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: var(--bg);
  z-index: 2000;
}
.loader.hidden {
  display: none;
}
.loader::after {
  content: "";
  width: 50px;
  height: 50px;
  border: 5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  100% { transform: rotate(360deg); }
}

/* BUTTONS */
button {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}
button:hover {
  background: var(--accent);
  color: #fff;
}
button:active {
  transform: scale(0.97);
}
/* DataTables overrides */
.dataTables_wrapper .dataTables_filter input {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  background: var(--card-bg);
  color: var(--text);
}
.dataTables_wrapper .dataTables_length select {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px;
  background: var(--card-bg);
  color: var(--text);
}
table.dataTable tbody tr:hover {
  background: rgba(77, 171, 247, 0.08);
}

/* Buttons */
.btn {
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}
.btn:hover {
  opacity: 0.9;
}
.btn-primary {
  background: var(--accent);
  color: white;
  border: none;
}
.btn-danger {
  background: #e03131;
  color: white;
  border: none;
}
.btn-fav {
  background: transparent;
  border: none;
  font-size: 1.2rem;
  color: gold;
}

/* Modal polish */
.modal-content {
  background: var(--card-bg);
  color: var(--text);
  border-radius: 12px;
  padding: 20px;
}
.modal-header {
  font-weight: bold;
  margin-bottom: 10px;
}
.posts-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.post-card {
  width: 100%;
  padding: 1.5rem;
  border-radius: 12px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.post-actions {
  margin-top: 1rem;
  display: flex;
  gap: 0.5rem;
}

.comments {
  margin-top: 0.5rem;
  padding-left: 1rem;
  list-style: disc;
}
/* User Detail Section */
.user-detail-section {
  position: relative; 
  padding: 1.5rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border);
  background: var(--card-bg);
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.user-detail-section.hidden {
  display: none;
}
.user-detail-section h2 {
  margin-top: 0;
}
.user-detail-section input {
  width: 100%;
  padding: 6px 10px;
  margin: 5px 0;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
}
.post-form-section {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  margin-top: 2rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  transition: transform 0.2s;
}

.post-form-section h2 {
  margin-top: 0;
  font-size: 1.8rem;
  color: var(--accent);
}

.post-form-section label {
  display: block;
  margin-top: 1rem;
  font-weight: 500;
}

.post-form-section input,
.post-form-section textarea {
  width: 100%;
  padding: 0.6rem;
  margin-top: 0.3rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  resize: vertical;
}

.post-form-section button {
  margin-top: 1.5rem;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
}

.post-form-section button:hover {
  opacity: 0.9;
}