@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --primary-color: #0d6efd;
  --primary-hover: #0b5ed7;
  --secondary-color: #6c757d;
  --dark-color: #0f172a;
  --light-color: #f8fafc;
  --text-color: #334155;
  --border-color: #e2e8f0;
  --bg-gradient: linear-gradient(135deg, #f0f4ff 0%, #ffffff 100%);
  --white: #ffffff;
  --font-main: 'Inter', sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --border-radius: 8px;
  --border-radius-lg: 16px;
  --transition: all 0.3s ease;
}

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

body {
  font-family: var(--font-main);
  color: var(--text-color);
  background-color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--dark-color);
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
  border: none;
  gap: 8px;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background-color: transparent;
  color: var(--dark-color);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background-color: #f0f4ff;
}

/* Header & Navbar */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  padding: 10px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo span {
  color: var(--dark-color);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--text-color);
  transition: var(--transition);
}

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

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark-color);
}

/* Main Content Padding */
main {
  padding-top: 80px;
}

/* Dropdown Menu */
.dropdown-parent:hover .dropdown-menu {
  display: block;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  box-shadow: var(--shadow-lg);
  border-radius: var(--border-radius);
  width: 220px;
  padding: 10px 0;
  z-index: 100;
  border: 1px solid var(--border-color);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: var(--transition);
}

.dropdown-menu li a:hover {
  background: var(--light-color);
  color: var(--primary-color) !important;
}

/* Post Content Typography (Single Blog) */
.post-content h2 {
  font-size: 1.8rem;
  color: var(--dark-color);
  margin-top: 40px;
  margin-bottom: 20px;
}

.post-content h3 {
  font-size: 1.4rem;
  color: var(--dark-color);
  margin-top: 30px;
  margin-bottom: 15px;
}

.post-content p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #334155;
  margin-bottom: 20px;
}

.post-content ul, .post-content ol {
  font-size: 1.05rem;
  line-height: 1.7;
  color: #334155;
  margin-bottom: 20px;
  padding-left: 20px;
}

.post-content li {
  margin-bottom: 10px;
}

.post-content .table-of-contents {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  padding: 30px;
  margin: 30px 0;
}

.post-content .notice-box {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: 12px;
  padding: 20px 25px;
  margin: 30px 0;
  display: flex;
  gap: 15px;
  align-items: flex-start;
}

.post-content .notice-box.gray {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-primary { color: var(--primary-color); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 3rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 3rem; }
.py-5 { padding-top: 5rem; padding-bottom: 5rem; }
.section-title { margin-bottom: 3rem; }
.section-subtitle { font-size: 1rem; color: var(--primary-color); font-weight: 600; text-transform: uppercase; letter-spacing: 1px; display: block; margin-bottom: 0.5rem; }

/* Responsive */
@media (max-width: 991px) {
  /* Navigation */
  .nav-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    padding: 20px;
    box-shadow: var(--shadow-md);
    gap: 20px;
    align-items: flex-start;
    border-top: 1px solid var(--border-color);
  }
  
  .nav-menu.active {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
    margin-left: auto;
  }
  
  .nav-menu .btn {
    width: 100%;
    text-align: center;
  }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    padding-left: 20px;
    width: 100%;
    background: transparent;
  }

  /* Typography */
  h1 { font-size: 2.2rem !important; }
  h2 { font-size: 1.8rem !important; }
  h3 { font-size: 1.3rem !important; }
  
  /* Flexbox & Grids inside sections */
  section > .container > div[style*="display: flex"] {
    gap: 30px !important;
  }
  
  /* Post Content Typography */
  .post-content h2 { font-size: 1.5rem; }
  .post-content h3 { font-size: 1.25rem; }
}

@media (max-width: 576px) {
  h1 { font-size: 1.8rem !important; }
  h2 { font-size: 1.5rem !important; }
  
  .container {
    padding: 0 15px;
  }
}

/* WP Post Content Styling */
.post-content {
    font-size: 1.05rem;
    line-height: 1.8;
    color: #334155;
}

.post-content h1, .post-content h2, .post-content h3, .post-content h4, .post-content h5, .post-content h6 {
    color: #0f172a;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    line-height: 1.3;
}

.post-content h2 { font-size: 1.8rem; }
.post-content h3 { font-size: 1.5rem; }
.post-content h4 { font-size: 1.25rem; }

.post-content p {
    margin-bottom: 1.5rem;
}

.post-content a {
    color: #2563eb;
    text-decoration: underline;
}

.post-content a:hover {
    color: #1d4ed8;
}

.post-content blockquote {
    margin: 2rem 0;
    padding: 1.5rem 2rem;
    border-left: 5px solid #3b82f6;
    background: #f8fafc;
    font-style: italic;
    color: #475569;
    border-radius: 0 8px 8px 0;
}

.post-content blockquote p:last-child {
    margin-bottom: 0;
}

.post-content ul, .post-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.post-content li {
    margin-bottom: 0.5rem;
}

.post-content img, .post-content figure {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 2rem 0;
}

.post-content figcaption {
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
    margin-top: 0.5rem;
}

.post-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5rem;
}

.post-content table th, .post-content table td {
    border: 1px solid #e2e8f0;
    padding: 12px 15px;
    text-align: left;
}

.post-content table th {
    background: #f8fafc;
    font-weight: 600;
    color: #0f172a;
}

.post-content pre {
    background: #0f172a;
    color: #f8fafc;
    padding: 1.5rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.post-content code {
    background: #f1f5f9;
    color: #e11d48;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.post-content pre code {
    background: transparent;
    color: inherit;
    padding: 0;
}