:root {
  --bg: #080B12;
  --panel: #111827;
  --text: #E5E7EB;
  --muted: #9CA3AF;
  --blue: #38BDF8;
  --purple: #A855F7;
  --red: #EF4444;
  --border: #1F2937;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top left, rgba(168, 85, 247, 0.16), transparent 35%),
              radial-gradient(circle at top right, rgba(56, 189, 248, 0.12), transparent 30%),
              var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

a {
  color: var(--blue);
  text-decoration: none;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 1000;

  backdrop-filter: blur(18px);

  background:
    linear-gradient(
      to bottom,
      rgba(8, 11, 18, 0.96),
      rgba(8, 11, 18, 0.88)
    );

  border-bottom: 1px solid rgba(56, 189, 248, 0.12);
}

.topbar-inner {
  max-width: 1350px;

  margin: 0 auto;

  padding: 1rem 1.4rem;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;

  text-decoration: none;
}

.brand-icon {
  width: 58px;
  height: 58px;

  display: grid;
  place-items: center;

  border-radius: 18px;

  font-size: 1.9rem;

  color: white;

  background:
    linear-gradient(
      135deg,
      rgba(56, 189, 248, 0.22),
      rgba(168, 85, 247, 0.18)
    );

  border: 1px solid rgba(56, 189, 248, 0.3);

  box-shadow:
    0 0 18px rgba(56, 189, 248, 0.18),
    inset 0 0 14px rgba(168, 85, 247, 0.15);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 0.85;
}

.brand-main {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: 0.04em;

  color: var(--blue);

  text-shadow:
    0 0 14px rgba(56, 189, 248, 0.45);
}

.brand-sub {
  margin-top: 0.2rem;

  color: var(--purple);

  font-size: 0.95rem;

  letter-spacing: 0.45em;

  text-transform: uppercase;

  text-shadow:
    0 0 12px rgba(168, 85, 247, 0.45);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  position: relative;

  color: var(--text);

  text-decoration: none;

  text-transform: uppercase;

  font-size: 0.88rem;

  letter-spacing: 0.08em;

  opacity: 0.82;

  transition:
    opacity 0.2s ease,
    color 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--blue);
}

.nav-links a.active {
  opacity: 1;
  color: var(--blue);
}

.nav-links a.active::after {
  content: "";

  position: absolute;

  left: 0;
  bottom: -0.7rem;

  width: 100%;
  height: 2px;

  background: var(--blue);

  box-shadow:
    0 0 10px rgba(56, 189, 248, 0.8);
}

.blog-btn {
  padding: 0.8rem 1.2rem;

  border-radius: 12px;

  border: 1px solid rgba(168, 85, 247, 0.45);

  background:
    rgba(168, 85, 247, 0.08);

  color: var(--purple);

  text-decoration: none;

  text-transform: uppercase;

  font-size: 0.85rem;

  letter-spacing: 0.08em;

  font-weight: 700;

  transition:
    transform 0.18s ease,
    background 0.2s ease;
}

.blog-btn:hover {
  transform: translateY(-2px);

  background:
    rgba(168, 85, 247, 0.16);
}

@media (max-width: 980px) {

  .topbar-inner {
    flex-direction: column;
    gap: 1.2rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
  }

  .brand-main {
    font-size: 1.6rem;
  }

  .brand-sub {
    letter-spacing: 0.3em;
  }
}

@media (max-width: 600px) {

  .nav-links {
    display: none;
  }

  .blog-btn {
    width: 100%;
    text-align: center;
  }

  .topbar-inner {
    align-items: stretch;
  }

  .brand {
    justify-content: center;
  }
}

.logo {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
}

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

nav a {
  margin-left: 1rem;
  color: var(--muted);
}

nav a:hover {
  color: var(--blue);
}

.hero {
  padding: 5rem 0;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1;
  max-width: 900px;
  margin-bottom: 1rem;
}

.hero p {
  color: var(--muted);
  max-width: 700px;
  font-size: 1.2rem;
}

.button-row {
  margin-top: 2rem;
}

.button {
  display: inline-block;
  margin-right: 1rem;
  padding: 0.8rem 1.1rem;
  border: 1px solid var(--blue);
  border-radius: 10px;
  color: var(--text);
  background: rgba(56, 189, 248, 0.08);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

.card {
  background: rgba(17, 24, 39, 0.82);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.5rem;
}

.card h3 {
  margin-top: 0;
}

.tag {
  color: var(--purple);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.25rem;
  text-align: center;
  color: var(--muted);
}

.course-img {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--border);
  margin-bottom: 1rem;
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
  padding: 0.25rem 0.25rem 0.5rem;
  max-width: 1250px;
  margin: 0 auto;
}

.eyebrow {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
  font-size: 0.85rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 3.0rem);
  line-height: 0.96;
  margin: 1rem 0 1.5rem;
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.hero h1 span:nth-child(1) {
  color: var(--red);
}

.hero h1 span:nth-child(2) {
  color: var(--blue);
}

.hero h1 span:nth-child(3) {
  color: var(--purple);
}

.hero-subtitle {
  color: var(--muted);
  max-width: 680px;
  font-size: 1.2rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.85rem;
}

.btn-blue {
  border: 1px solid var(--blue);
  color: var(--blue);
  background: rgba(56, 189, 248, 0.08);
}

.btn-purple {
  border: 1px solid var(--purple);
  color: var(--purple);
  background: rgba(168, 85, 247, 0.08);
}

.btn-red {
  border: 1px solid var(--red);
  color: var(--red);
  background: rgba(239, 68, 68, 0.08);
}

.hero-visual {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--border);
  border-radius: 28px;
  background:
    radial-gradient(circle at 50% 25%, rgba(56, 189, 248, 0.22), transparent 28%),
    radial-gradient(circle at 60% 60%, rgba(168, 85, 247, 0.18), transparent 35%),
    linear-gradient(135deg, rgba(17, 24, 39, 0.92), rgba(8, 11, 18, 0.95));
  overflow: hidden;
  box-shadow: 0 0 50px rgba(56, 189, 248, 0.12);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(56, 189, 248, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent);
}

.threat-panel p {
  color: var(--red);
  margin: 0 0 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.hero-logo-panel {
  position: relative;

  display: flex;
  align-items: center;
  justify-content: center;

  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;

  background-image:
    linear-gradient(rgba(56, 189, 248, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, 0.08) 1px, transparent 1px);

  background-size: 48px 48px;

  mask-image:
    linear-gradient(to bottom, black, transparent);
}

.hero-logo-wrapper {
  position: relative;

  z-index: 2;

  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-logo {
  width: min(420px, 80%);
  height: auto;

  position: relative;
  z-index: 3;

  filter:
    drop-shadow(0 0 25px rgba(56, 189, 248, 0.28))
    drop-shadow(0 0 55px rgba(168, 85, 247, 0.18));
}

.hero-logo-glow {
  position: absolute;

  width: 420px;
  height: 420px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(56, 189, 248, 0.18),
      rgba(168, 85, 247, 0.12),
      transparent 70%
    );

  filter: blur(30px);

  z-index: 1;
}

.hero-panel-overlay {
  position: absolute;

  bottom: 35px;
  left: 35px;

  display: flex;
  flex-direction: column;
  gap: 0.5rem;

  z-index: 4;
}

.hero-panel-overlay span {
  color: rgba(229, 231, 235, 0.72);

  font-size: 0.78rem;

  letter-spacing: 0.18em;

  text-transform: uppercase;

  padding: 0.45rem 0.7rem;

  border: 1px solid rgba(56, 189, 248, 0.18);

  background: rgba(8, 11, 18, 0.5);

  backdrop-filter: blur(12px);
}

@media (max-width: 900px) {

  .hero-logo {
    width: min(320px, 78%);
  }

  .hero-logo-glow {
    width: 300px;
    height: 300px;
  }
}

@media (max-width: 600px) {

  .hero-panel-overlay {
    display: none;
  }

  .hero-logo {
    width: min(260px, 72%);
  }
}

.threat-panel span {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-top: 0.35rem;
}

.feature-strip {
  max-width: 1250px;
  margin: 0 auto 4rem;
  padding: 1.5rem 1.25rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.feature {
  border-left: 1px solid var(--border);
  padding: 1.25rem;
}

.feature .icon {
  font-size: 2.2rem;
  color: var(--blue);
  margin-bottom: 0.8rem;
}

.feature h3 {
  margin: 0 0 0.5rem;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: 3rem;
  }

  .hero-visual {
    min-height: 420px;
  }

  .feature-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }

  .hero-visual {
    min-height: 360px;
  }

  .logo-orb {
    width: 155px;
    height: 155px;
    top: 105px;
  }

  .skull {
    font-size: 4rem;
  }

  .threat-panel {
    display: none;
  }

  .feature-strip {
    grid-template-columns: 1fr;
  }
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 15, 25, 0.92);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(96, 165, 250, 0.15);
  }

  .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
  }

  .site-logo {
    width: 52px;
    height: 52px;
    object-fit: contain;
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(96, 165, 250, 0.35);
  }

  .logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    color: #f8fafc;
    letter-spacing: 0.5px;
  }

  nav {
    display: flex;
    gap: 24px;
  }

  nav a {
    color: #cbd5e1;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
  }

  nav a:hover {
    color: #60a5fa;
  }

  @media (max-width: 768px) {
    .logo-text {
      display: none;
    }

    nav {
      gap: 16px;
    }
  }

.page-hero {
  max-width: 1250px;

  margin: 0 auto;

  padding:
    1.25rem
    1.25rem
    1.5rem;

  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-hero .tag {
  display: block;

  margin: 0 0 0.5rem;

  color: var(--purple);

  font-size: 0.82rem;

  text-transform: uppercase;

  letter-spacing: 0.14em;

  font-weight: 700;
}

.page-hero h1 {
  width: 100%;

  margin: 0;

  font-size: clamp(2.5rem, 5vw, 4rem);

  line-height: 0.95;

  text-transform: uppercase;

  letter-spacing: -0.04em;

  color: var(--text);
}

.page-hero p {
  margin-top: 0.85rem;

  max-width: 760px;

  color: var(--muted);

  font-size: 1.05rem;
}

.about-hero-layout {
  display: flex;
  align-items: center;
  gap: 2.5rem;

  width: 100%;
}

.about-logo-wrapper {
  flex-shrink: 0;
}

.about-logo {
  width: 210px;
  height: 210px;

  object-fit: cover;

  border-radius: 50%;

  border: 1px solid rgba(56, 189, 248, 0.22);

  box-shadow:
    0 0 40px rgba(56, 189, 248, 0.18),
    0 0 70px rgba(168, 85, 247, 0.12);
}

.about-hero-content {
  flex: 1;
}

.about-hero-content h1 {
  margin-top: 0.35rem;
}

.about-hero-content p:last-child {
  max-width: 720px;
}

@media (max-width: 850px) {

  .about-hero-layout {
    flex-direction: column;
    align-items: flex-start;
  }

  .about-logo {
    width: 160px;
    height: 160px;
  }
}

.lab-hero {
  display: grid;
  grid-template-columns: 1.4fr 0.7fr;
  align-items: center;
  gap: 2rem;
}

.hero-logo img {
  max-width: 260px;
  width: 100%;
  display: block;
  margin-left: auto;
  filter: drop-shadow(0 0 20px rgba(0, 229, 255, 0.35));
}

.feature-list {
  margin-top: 0.5rem;
  padding-left: 1.5rem;
}

.feature-list li {
  margin-bottom: 0.5rem;
}

.quote-block {
  margin: 2rem 0;
  padding: 1.5rem;
  border-left: 4px solid #00e5ff;
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
}

th,
td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  text-align: left;
}

th {
  color: #00e5ff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

@media (max-width: 900px) {
  .lab-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-logo img {
    margin: 0 auto;
  }
}
.article-hero {
  margin-bottom: 0.1rem;
}

.article-title-row {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  margin-bottom: 0.1rem;
}

.article-logo {
  width: 100px;
  height: auto;
  flex-shrink: 0;
}

.article-title-block {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.article-title-block h1 {
  margin-bottom: 0.1rem;
  line-height: 1.1;
}

.article-title-block .tag {
  margin: 0;
}

.hero-description {
  max-width: 850px;
  margin-top: 0.25rem;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .article-title-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .article-logo {
    width: 85px;
  }
}