:root {
  --primary: #0f172a;
  --secondary: #1e293b;
  --accent: #3b82f6;
  --text: #f1f5f9;
  --card-bg: #334155;
  --shadow: rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--primary);
  color: var(--text);
  min-height: 100vh;
  padding: 2rem;
  display: flex;
  justify-content: center;
}

.container {
  width: 100%;
  max-width: 900px;
}

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

header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

header input {
  width: 100%;
  max-width: 500px;
  padding: 12px 16px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  background: var(--secondary);
  color: var(--text);
  outline: none;
  box-shadow: 0 2px 5px var(--shadow);
}

.posts {
  display: grid;
  gap: 1.5rem;
  animation: fadeIn 0.5s ease-in;
}

.post {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 10px var(--shadow);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.post:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px var(--shadow);
}

.post h2 {
  font-size: 1.25rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.post p {
  line-height: 1.6;
  font-size: 1rem;
  color: #e2e8f0;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 2rem;
  gap: 1rem;
}

.pagination button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 18px;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.2s ease;
}

.pagination button:hover {
  background: #2563eb;
}

.pagination button:disabled {
  background: #475569;
  cursor: default;
}

#pageInfo {
  font-weight: bold;
  font-size: 1rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}