:root {
  --cyber-cyan: #00D9FF;
  --cyber-pink: #FF006E;
  --cyber-purple: #8B5CF6;
  --dark-navy: #0A0E27;
  --darker-navy: #050813;
  --text-white: #FFFFFF;
  --text-gray: #A0AEC0;
  --border-glow: rgba(0, 217, 255, 0.3);
  --s1: 0.5rem;
  --s2: 1rem;
  --s3: 1.5rem;
  --s4: 2rem;
  --s5: 3rem;
  --r1: 4px;
  --r2: 8px;
  --r3: 12px;
}

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

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--dark-navy);
  color: var(--text-white);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.875rem; }

a {
  color: var(--cyber-cyan);
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

a:hover {
  color: var(--cyber-pink);
  text-shadow: 0 0 10px var(--cyber-pink);
}

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

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--s3);
}

.top-bar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(10, 14, 39, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glow);
  z-index: 999;
  padding: var(--s2) 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  font-size: 1.625rem;
  font-weight: 800;
  font-family: 'Space Grotesk', sans-serif;
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(0, 217, 255, 0.5);
}

.brand img {
  width: 45px;
  height: 45px;
  filter: drop-shadow(0 0 8px var(--cyber-cyan));
}

.nav-links ul {
  display: flex;
  list-style: none;
  gap: var(--s4);
}

.nav-links a {
  color: var(--text-gray);
  font-weight: 600;
  font-size: 0.9375rem;
  position: relative;
  transition: all 0.3s;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyber-cyan), var(--cyber-pink));
  transition: width 0.3s;
}

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

.nav-links a:hover,
.nav-links a.active {
  color: var(--cyber-cyan);
}

.cta-btns {
  display: flex;
  gap: var(--s2);
}

.cyber-btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  border-radius: var(--r1);
  font-weight: 700;
  font-size: 0.9375rem;
  transition: all 0.3s;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.cyber-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.cyber-btn:hover::before {
  left: 100%;
}

.cyber-btn-primary {
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-purple));
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 217, 255, 0.4);
}

.cyber-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 217, 255, 0.6);
}

.cyber-btn-ghost {
  background: transparent;
  color: var(--cyber-pink);
  border: 2px solid var(--cyber-pink);
  box-shadow: 0 0 10px rgba(255, 0, 110, 0.3);
}

.cyber-btn-ghost:hover {
  background: var(--cyber-pink);
  color: var(--dark-navy);
  box-shadow: 0 0 20px rgba(255, 0, 110, 0.6);
}

.hero-zone {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 90px;
  background: linear-gradient(135deg, var(--darker-navy) 0%, var(--dark-navy) 100%);
  position: relative;
  overflow: hidden;
}

.hero-zone::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60%;
  height: 100%;
  background: url('../images/hero-cyber-bg.png') center/cover no-repeat;
  opacity: 0.4;
  z-index: 0;
}

.hero-zone::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 217, 255, 0.15) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.15; }
  50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.25; }
}

.hero-text {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-heading {
  font-size: 4.5rem;
  margin-bottom: var(--s3);
  line-height: 1.1;
  text-shadow: 0 0 30px rgba(0, 217, 255, 0.5);
}

.glow-text {
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 15px var(--cyber-cyan));
}

.hero-desc {
  font-size: 1.25rem;
  color: var(--text-gray);
  margin-bottom: var(--s5);
  line-height: 1.8;
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--s4);
  margin-top: var(--s5);
}

.cyber-card {
  background: rgba(10, 14, 39, 0.6);
  border: 1px solid var(--border-glow);
  border-radius: var(--r2);
  padding: var(--s4);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.cyber-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyber-cyan), var(--cyber-pink));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s;
}

.cyber-card:hover::before {
  transform: scaleX(1);
}

.cyber-card:hover {
  border-color: var(--cyber-cyan);
  transform: translateY(-8px);
  box-shadow: 0 15px 40px rgba(0, 217, 255, 0.3);
}

.card-icon {
  font-size: 3rem;
  margin-bottom: var(--s2);
  filter: drop-shadow(0 0 10px var(--cyber-cyan));
}

.card-heading {
  font-size: 1.625rem;
  margin-bottom: var(--s2);
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.card-desc {
  color: var(--text-gray);
  line-height: 1.7;
}

.section-block {
  padding: var(--s5) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--s5);
}

.gray-text {
  color: var(--text-gray);
}

.center-align {
  text-align: center;
}

.highlight-panel {
  background: linear-gradient(135deg, rgba(0, 217, 255, 0.1), rgba(255, 0, 110, 0.1));
  border: 1px solid var(--cyber-cyan);
  border-radius: var(--r2);
  padding: var(--s4);
  margin: var(--s5) 0;
  box-shadow: 0 0 30px rgba(0, 217, 255, 0.2);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: var(--s4);
}

.post-item {
  background: rgba(10, 14, 39, 0.6);
  border: 1px solid var(--border-glow);
  border-radius: var(--r2);
  overflow: hidden;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}

.post-item:hover {
  border-color: var(--cyber-pink);
  transform: translateY(-6px);
  box-shadow: 0 12px 35px rgba(255, 0, 110, 0.3);
}

.post-thumb {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.post-body {
  padding: var(--s3);
}

.post-label {
  display: inline-block;
  background: linear-gradient(135deg, var(--cyber-cyan), var(--cyber-purple));
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--r1);
  font-size: 0.875rem;
  font-weight: 700;
  margin-bottom: var(--s2);
}

.post-heading {
  font-size: 1.5rem;
  margin-bottom: var(--s2);
  color: var(--text-white);
}

.post-info {
  color: var(--text-gray);
  font-size: 0.875rem;
  margin-bottom: var(--s2);
}

.post-summary {
  color: var(--text-gray);
  line-height: 1.6;
}

.bottom-bar {
  background: var(--darker-navy);
  border-top: 1px solid var(--border-glow);
  padding: var(--s5) 0 var(--s2);
  margin-top: var(--s5);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--s4);
  margin-bottom: var(--s4);
}

.footer-section h4 {
  color: var(--cyber-pink);
  margin-bottom: var(--s2);
  font-size: 1.125rem;
}

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

.footer-section ul li {
  margin-bottom: 0.75rem;
}

.footer-section a {
  color: var(--text-gray);
}

.footer-section a:hover {
  color: var(--cyber-cyan);
}

.footer-end {
  text-align: center;
  padding-top: var(--s3);
  border-top: 1px solid var(--border-glow);
  color: var(--text-gray);
  font-size: 0.875rem;
}

@media (max-width: 768px) {
  .hero-heading {
    font-size: 2.75rem;
  }
  .nav-links {
    display: none;
  }
  .grid-cards {
    grid-template-columns: 1fr;
  }
  .post-grid {
    grid-template-columns: 1fr;
  }
}

.m-b-1 { margin-bottom: var(--s1); }
.m-b-2 { margin-bottom: var(--s2); }
.m-b-3 { margin-bottom: var(--s3); }
.m-b-4 { margin-bottom: var(--s4); }
.m-b-5 { margin-bottom: var(--s5); }
.m-t-1 { margin-top: var(--s1); }
.m-t-2 { margin-top: var(--s2); }
.m-t-3 { margin-top: var(--s3); }
.m-t-4 { margin-top: var(--s4); }
.m-t-5 { margin-top: var(--s5); }