/* --- General Setup & Variables --- */
:root {
  --primary-color: #ffffff;
  --secondary-color: #e0e0e0;
  --accent-color: #4a90e2;
  --text-color: #f0f0f0;
  --bg-color: #1a1a2e;
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: 1px solid rgba(255, 255, 255, 0.2);
  --blur-effect: blur(10px);
  --border-radius: 15px;
  --font-family: 'Montserrat', sans-serif;
}

/* --- Base Styles & Typography --- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  background-image: linear-gradient(to right top, #16222a, #203341, #284559, #2e5973, #346d8d);
  color: var(--text-color);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--primary-color);
  margin-bottom: 1rem;
  line-height: 1.3;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover, a:focus {
  color: var(--primary-color);
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

/* --- Layout Containers --- */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 0;
}

.main-content {
  flex: 1;
}

.main-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 992px) {
  .main-layout {
    grid-template-columns: 3fr 1fr;
  }
}

/* --- Glassmorphism Card Style --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-effect);
  -webkit-backdrop-filter: var(--blur-effect);
  border-radius: var(--border-radius);
  border: var(--glass-border);
  padding: 2rem;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

/* --- Header & Navigation --- */
.site-header {
  background: var(--glass-bg);
  backdrop-filter: var(--blur-effect);
  -webkit-backdrop-filter: var(--blur-effect);
  border-bottom: var(--glass-border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.site-title a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-menu ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.nav-menu a {
  color: var(--secondary-color);
  font-weight: 500;
  font-size: 1rem;
  text-decoration: none;
  padding: 0.5rem 0;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-color);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after, .nav-menu a.active::after {
  width: 100%;
}

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

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
}

@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Hide for now, can be implemented with JS */
    }
    .nav-toggle {
        display: block;
    }
}


/* --- Main & Articles --- */
.articles-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .articles-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1200px) {
  .articles-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.article-card {
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.3);
}

.article-card-content {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-card-content h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.article-card-content p {
  flex-grow: 1;
  color: var(--secondary-color);
}

.read-more-btn {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.6rem 1.2rem;
  background-color: var(--accent-color);
  color: var(--primary-color);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  transition: background-color 0.3s ease;
}

.read-more-btn:hover {
  background-color: #3a80d2;
  color: var(--primary-color);
  text-decoration: none;
}

/* Single Article Page */
.article-header {
    margin-bottom: 2rem;
    border-bottom: var(--glass-border);
    padding-bottom: 1.5rem;
}
.article-meta {
    font-size: 0.9rem;
    color: var(--secondary-color);
    margin-top: -0.5rem;
}
.article-content a {
    font-weight: 600;
}
.article-content img {
    margin: 1.5rem 0;
}
.cta-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background-color: rgba(74, 144, 226, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: var(--border-radius);
    text-align: center;
}
.cta-section h3 {
    color: var(--accent-color);
}

/* --- Sidebar --- */
.sidebar-widget {
  margin-bottom: 2rem;
}

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

.sidebar-widget li {
  margin-bottom: 0.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding-bottom: 0.75rem;
}
.sidebar-widget li:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0;
}

.sidebar-widget a {
  color: var(--secondary-color);
}
.sidebar-widget a:hover {
  color: var(--accent-color);
  text-decoration: none;
}

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 2rem 0;
  margin-top: 2rem;
  background: rgba(0, 0, 0, 0.2);
  border-top: var(--glass-border);
  color: var(--secondary-color);
  font-size: 0.9rem;
}

/* --- Contact Form --- */
.contact-form .form-group {
    margin-bottom: 1.5rem;
}
.contact-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}
.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: var(--glass-border);
    border-radius: 8px;
    color: var(--primary-color);
    font-family: var(--font-family);
    font-size: 1rem;
}
.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}
.contact-form button {
    cursor: pointer;
    border: none;
    padding: 0.8rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-radius: 8px;
    transition: background-color 0.3s ease;
}
.contact-form button:hover {
    background-color: #3a80d2;
}