/* Google Fonts - Inter & Outfit */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;800&display=swap');

:root {
  /* Color Palette - Premium Dark Mode */
  --bg-main: #0B0C10;
  --bg-secondary: #1F2833;
  --accent-primary: #66FCF1;
  --accent-secondary: #45A29E;
  --text-primary: #FFFFFF;
  --text-secondary: #C5C6C7;
  
  /* Deep purple/blue aesthetic matching the hero image */
  --glow-purple: rgba(138, 43, 226, 0.4);
  --glow-blue: rgba(65, 105, 225, 0.4);
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

  /* Typography */
  --font-primary: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;

  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

:root.light-theme {
  --bg-main: #f4f6f9;
  --bg-secondary: #ffffff;
  --accent-primary: #05d9e8;
  --accent-secondary: #019ea8;
  --text-primary: #1a1a24;
  --text-secondary: #5a5a6b;
  --glass-bg: rgba(0, 0, 0, 0.03);
  --glass-border: rgba(0, 0, 0, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  /* Copy Protection */
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

img {
  -webkit-user-drag: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
  background: var(--bg-secondary);
  border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--accent-secondary);
}

/* Typography Utilities */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.2;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-smooth);
}

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

/* Navbar (Glassmorphism) */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  background: rgba(11, 12, 16, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: 1px;
}

.nav-logo span {
  color: var(--accent-primary);
}

.nav-links {
  display: flex;
  gap: 30px;
  list-style: none;
}

.nav-links li a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
}

.nav-links li a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--accent-primary);
  transition: var(--transition-smooth);
}

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

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

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
  color: var(--bg-main);
  box-shadow: 0 4px 15px rgba(102, 252, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 252, 241, 0.5);
}

.btn-glass {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  background: radial-gradient(circle at 10% 20%, var(--glow-purple) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, var(--glow-blue) 0%, transparent 40%);
}

.hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: url('../assets/images/hero_bg.png') no-repeat center center/cover;
  opacity: 0.3;
  z-index: -1;
}

.hero-content {
  max-width: 600px;
  z-index: 1;
}

.hero h1 {
  font-size: 4.5rem;
  margin-bottom: 20px;
  background: linear-gradient(to right, #ffffff, var(--accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-buttons {
  display: flex;
  gap: 20px;
}

/* Blog Section */
.blog-section {
  padding: 100px 0;
  background-color: var(--bg-main);
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 10px;
}

.section-header p {
  color: var(--text-secondary);
}

/* Filter Tags */
.filter-tags {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-tag {
  padding: 8px 20px;
  border-radius: 50px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-smooth);
  font-size: 0.9rem;
  border: 1px solid transparent;
}

.filter-tag:hover, .filter-tag.active {
  background: var(--glass-bg);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

/* Blog Grid */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
}

/* Blog Card (Glassmorphism) */
.blog-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
}

.blog-card:hover {
  transform: translateY(-10px);
  border-color: rgba(102, 252, 241, 0.3);
  box-shadow: 0 15px 40px rgba(0,0,0,0.5);
}

.card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.blog-card:hover .card-img {
  transform: scale(1.05);
}

.card-img-wrapper {
  overflow: hidden;
  position: relative;
}

.category-badge {
  position: absolute;
  top: 15px;
  left: 15px;
  background: rgba(11, 12, 16, 0.8);
  color: var(--accent-primary);
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  backdrop-filter: blur(5px);
  border: 1px solid var(--glass-border);
}

.card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  gap: 15px;
}

.card-meta i {
  color: var(--accent-primary);
  margin-right: 5px;
}

.card-title {
  font-size: 1.4rem;
  margin-bottom: 15px;
  line-height: 1.4;
}

.card-title a {
  background-image: linear-gradient(to right, var(--accent-primary), var(--accent-primary));
  background-size: 0% 2px;
  background-repeat: no-repeat;
  background-position: left bottom;
  transition: background-size 0.3s ease;
}

.card-title a:hover {
  background-size: 100% 2px;
}

.card-excerpt {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 25px;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--glass-border);
  padding-top: 15px;
}

.author-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.author-avatar {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--accent-primary);
}

.read-more {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 5px;
}

.read-more:hover {
  gap: 10px;
}

/* Footer */
footer {
  background-color: var(--bg-secondary);
  padding: 60px 0 20px;
  border-top: 1px solid var(--glass-border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  max-width: 300px;
}

.footer-brand p {
  color: var(--text-secondary);
  margin-top: 15px;
  font-size: 0.9rem;
}

.footer-links h4 {
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-primary);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* About Section */
.about-section {
  padding: 100px 0;
  background-color: var(--bg-secondary);
}

.about-content {
  display: flex;
  gap: 50px;
  align-items: center;
  flex-wrap: wrap;
}

.about-text {
  flex: 1;
  min-width: 320px;
}

.about-text h3 {
  font-size: 2.2rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.about-features {
  flex: 1;
  min-width: 320px;
}

.feature-box {
  background: var(--glass-bg);
  padding: 40px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(10px);
}

.feature-box ul {
  list-style: none;
}

.feature-box li {
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-secondary);
  font-size: 1.1rem;
  font-weight: 500;
}

.feature-box li:last-child {
  margin-bottom: 0;
}

.feature-box .icon {
  background: rgba(102, 252, 241, 0.1);
  color: var(--accent-primary);
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 1.2rem;
}

/* Contact Section */
.contact-section {
  padding: 100px 0;
  background-color: var(--bg-main);
}

.contact-content {
  display: flex;
  gap: 50px;
  flex-wrap: wrap;
}

.contact-info {
  flex: 1;
  min-width: 320px;
}

.contact-info h3 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.info-item {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.info-item i {
  color: var(--accent-primary);
  font-size: 1.5rem;
  width: 30px;
  text-align: center;
}

.contact-form-wrapper {
  flex: 1;
  min-width: 320px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--glass-bg);
  padding: 40px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.contact-form input,
.contact-form textarea {
  padding: 18px 20px;
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  outline: none;
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent-primary);
  background: rgba(255,255,255,0.06);
}

.contact-form button {
  align-self: flex-start;
  margin-top: 10px;
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 3rem;
  }
  .nav-links {
    display: none;
  }
  .footer-content {
    flex-direction: column;
  }
}