/* --- Variables & Reset --- */
:root {
  --primary: #2563eb;
  --secondary: #64748b;
  --dark: #0f172a;
  --light: #f8fafc;
  --white: #ffffff;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --transition: all 0.3s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background-color: var(--light);
  color: var(--dark);
  line-height: 1.6;
}

/* --- Header & Nav --- */
.blog-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 5%;
  background: var(--white);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: bold;
  font-size: 1.2rem;
}

.logo-area img { height: 40px; }

nav a {
  text-decoration: none;
  color: var(--secondary);
  margin-left: 20px;
  font-weight: 500;
  transition: var(--transition);
}

nav a:hover, nav a.active { color: var(--primary); }

/* --- Hero Section --- */
.blog-hero {
  background: linear-gradient(135deg, #1e293b 0%, #2563eb 100%);
  color: var(--white);
  padding: 60px 5%;
  text-align: center;
}

.blog-hero h1 { font-size: 2.5rem; margin-bottom: 10px; }

#searchInput {
  margin-top: 20px;
  padding: 12px 25px;
  width: 100%;
  max-width: 500px;
  border: none;
  border-radius: 30px;
  outline: none;
  font-size: 1rem;
}

/* --- Main Layout --- */
.blog-container {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 30px;
  padding: 40px 5%;
  max-width: 1300px;
  margin: auto;
}

/* --- Sidebar --- */
.blog-sidebar {
  background: var(--white);
  padding: 25px;
  border-radius: 12px;
  height: fit-content;
  box-shadow: var(--shadow);
}

.blog-sidebar h3 { margin-bottom: 15px; border-left: 4px solid var(--primary); padding-left: 10px; }

.blog-sidebar ul { list-style: none; }

.blog-sidebar ul li { margin-bottom: 10px; }

.blog-sidebar ul li a {
  text-decoration: none;
  color: var(--secondary);
  transition: var(--transition);
  display: block;
}

.blog-sidebar ul li a:hover { color: var(--primary); transform: translateX(5px); }

/* --- Blog Cards --- */
.blog-posts {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.blog-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.blog-card:hover { transform: translateY(-10px); }

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-content { padding: 20px; }

.category {
  background: #dbeafe;
  color: var(--primary);
  font-size: 0.75rem;
  padding: 4px 12px;
  border-radius: 20px;
  font-weight: bold;
}

.blog-content h2 { font-size: 1.25rem; margin: 10px 0; }

.blog-content h2 a { text-decoration: none; color: var(--dark); }

.read-more {
  display: inline-block;
  margin-top: 15px;
  color: var(--primary);
  text-decoration: none;
  font-weight: bold;
}

/* --- Footer --- */
.blog-footer {
  background: var(--dark);
  color: #cbd5e1;
  padding: 50px 5% 20px;
  margin-top: 50px;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand img { height: 40px; margin-bottom: 15px; filter: brightness(0) invert(1); }

.footer-links a, .footer-contact a {
  display: block;
  color: #cbd5e1;
  text-decoration: none;
  margin-bottom: 10px;
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid #334155;
  padding-top: 20px;
  font-size: 0.9rem;
}

/* --- Responsive --- */
@media (max-width: 992px) {
  .blog-container { grid-template-columns: 1fr; }
  .blog-sidebar { order: 2; }
  .footer-content { grid-template-columns: 1fr; text-align: center; }
}