:root {
  --bg: #f8fbff;
  --card: #ffffff;
  --accent: #2563eb;   /* Blue */
  --accent-dark: #1e40af;
  --text: #0f172a;
}

body {
  font-family: Inter, system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 24px auto;
  padding: 0 16px;
}

.site-header {
  background: var(--card);
  border-bottom: 2px solid var(--accent);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
}

.brand a {
  display: inline-block;
  text-decoration: none;
  background-color: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1.2rem; /* slightly bigger than Login/Register */
  padding: 10px 20px; /* bigger padding */
  border-radius: 8px;
  transition: background-color 0.3s ease;
}

.brand a:hover {
  background-color: var(--accent-dark);
}


/* .main-nav a {
  margin-left: 12px;
  text-decoration: none;
  color: var(--accent);
  font-weight: 500;
}

.main-nav a:hover {
  color: var(--accent-dark);
} */
.main-nav a {
  margin-left: 12px;
  text-decoration: none;
  color: #fff; /* white text */
  font-weight: 600;
  background-color: var(--accent); /* same as search */
  padding: 6px 14px;
  border-radius: 6px;
  transition: background-color 0.3s ease;
}

.main-nav a:hover {
  background-color: var(--accent-dark);
  color: #fff;
}

h2 {
  color: var(--accent-dark);
}

.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-item {
  background: var(--card);
  padding: 16px;
  margin: 12px 0;
  border-radius: 8px;
  box-shadow: 0 2px 6px rgba(37, 99, 235, 0.1);
  border-left: 4px solid var(--accent);
}

.post-item h3 a {
  text-decoration: none;
  color: var(--accent-dark);
}

.meta {
  font-size: 13px;
  color: #475569;
  margin-bottom: 8px;
}

.auth-form label, .post-form label {
  display: block;
  margin-bottom: 12px;
  font-weight: 500;
  color: var(--accent-dark);
}

input, textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #cbd5e1;
  border-radius: 6px;
  font-size: 14px;
}

textarea {
  resize: vertical;
}

button {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
}

button:hover {
  background: var(--accent-dark);
}

.error {
  background: #fee2e2;
  color: #991b1b;
  padding: 10px;
  border-radius: 6px;
  margin-bottom: 12px;
}

.site-footer {
  margin-top: 40px;
  padding: 16px;
  text-align: center;
  font-size: 14px;
  border-top: 1px solid #e2e8f0;
  color: #475569;
}