:root {
  --page-bg: #000;
  --panel-bg: rgba(4, 8, 6, 0.94);
  --card-bg: rgba(12, 18, 14, 0.94);
  --line: #526057;
  --text: #f1f5f2;
  --muted: #aab5ae;
  --green: #39ff88;
  --green-soft: rgba(57, 255, 136, 0.12);
}

html,
body {
  min-height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: clip;
  background: var(--page-bg);
  color: var(--text);
  font-family: "Courier New", Courier, monospace;
}

html {
  scroll-behavior: smooth;
}

body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
}

#particles-js {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

main,
.site-footer,
.cookie-banner {
  position: relative;
  z-index: 1;
}

main {
  flex: 1 0 auto;
  pointer-events: none;
}

main a,
main button,
.site-footer a,
.cookie-banner button {
  pointer-events: auto;
}

a {
  color: var(--text);
  text-decoration-color: var(--green);
  text-underline-offset: 0.2em;
}

a:hover,
a:focus-visible {
  color: var(--green);
}

.hero {
  max-width: 1000px;
  margin: 0 auto;
  padding: 6vh 0 2rem;
  text-align: center;
}

.hero img {
  width: 180px;
  max-width: 55%;
  height: auto;
  margin-bottom: 1rem;
}

.hero h1 {
  margin-bottom: 0.75rem;
  color: var(--green);
  font-size: clamp(2rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: 0.035em;
  text-shadow: 0 0 18px rgba(57, 255, 136, 0.28);
}

.hero .lead {
  margin-bottom: 1rem;
  line-height: 1.65;
}

.hero .objective {
  max-width: 900px;
  margin: 1.4rem auto 0;
  padding: 1rem 1.2rem;
  border: 1px dashed var(--green);
  background: var(--green-soft);
  line-height: 1.65;
  text-align: left;
}

.badge-terminal {
  display: inline-block;
  margin: 0.25rem;
  padding: 0.35rem 0.65rem;
  border: 1px solid var(--text);
  background: transparent;
  color: var(--text);
}

.terminal-box {
  margin-bottom: 1.5rem;
  border: 1px solid var(--text);
  background: var(--panel-bg);
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.07);
}

.terminal-title {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--text);
  color: var(--green);
  font-weight: 700;
  letter-spacing: 0.025em;
}

.category-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 1rem;
}

#areas {
  scroll-margin-top: 1rem;
}

.category-nav a {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  background: #090d0a;
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
}

.category-nav a:hover,
.category-nav a:focus-visible,
.category-nav a.is-active {
  border-color: var(--green);
  color: var(--green);
}

.resource-section {
  scroll-margin-top: 1rem;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
}

.section-heading h2 {
  margin: 0;
  color: var(--green);
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  font-weight: 700;
}

.section-count {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
}

.section-tools {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.8rem;
}

.back-to-areas {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  text-decoration: none;
  white-space: nowrap;
}

.back-to-areas:hover,
.back-to-areas:focus-visible {
  border-color: var(--green);
  color: var(--green);
}

.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.resource-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
  padding: 1rem;
  border: 1px solid var(--line);
  background: var(--card-bg);
  transition: border-color 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease;
}

.resource-card:hover {
  border-color: var(--green);
  box-shadow: 0 0 18px rgba(57, 255, 136, 0.09);
  transform: translateY(-2px);
}

.resource-id {
  margin-bottom: 0.65rem;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.resource-card h3 {
  margin-bottom: 0.7rem;
  font-size: 1.16rem;
  font-weight: 700;
}

.resource-card p {
  flex: 1 1 auto;
  margin-bottom: 1rem;
  color: var(--muted);
  line-height: 1.6;
}

.retro-btn {
  display: inline-block;
  align-self: flex-start;
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--green);
  background: transparent;
  color: var(--green);
  font-weight: 700;
  text-decoration: none;
}

.retro-btn:hover,
.retro-btn:focus-visible {
  background: var(--green);
  color: #000;
}

.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  padding: 15px 10px;
  border-top: 1px solid #555;
  background: #111;
  color: #ccc;
  text-align: center;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  z-index: 1000;
  display: none;
  width: 100%;
  padding: 10px 20px;
  border-top: 1px solid #555;
  background: #111;
  color: #fff;
  text-align: center;
  font-size: 0.9rem;
}

.cookie-banner.is-visible {
  display: block;
}

.cookie-button {
  margin: 0.35rem 0 0.35rem 0.75rem;
  padding: 5px 10px;
  border: 1px solid #fff;
  background: #222;
  color: #fff;
  cursor: pointer;
}

.cookie-button:hover,
.cookie-button:focus-visible {
  background: #fff;
  color: #000;
}

.cookie-button.cookie-reject {
  background: #550000;
}

@media (max-width: 767.98px) {
  .hero {
    padding-top: 3vh;
  }

  .resource-grid {
    grid-template-columns: 1fr;
  }

  .category-nav {
    display: grid;
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .section-tools {
    width: 100%;
    justify-content: space-between;
  }
}

@media print {
  #particles-js,
  .category-nav,
  .cookie-banner,
  .site-footer,
  .hero img {
    display: none !important;
  }

  html,
  body,
  .terminal-box,
  .resource-card {
    background: #fff !important;
    color: #000 !important;
  }

  .resource-grid {
    grid-template-columns: 1fr 1fr;
  }

  .terminal-box,
  .resource-card {
    break-inside: avoid;
    box-shadow: none;
  }
}