/* === tokens / root === */
:root {
  --amber: #ffbf00;
  --amber-dark: #c0901a;
  --greenish: #007828;

  --bg-main: #000;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
}

/* === base layout & typography === */
html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg-main);
  color: var(--amber);
  font-family: var(--font-mono);
  overflow-x: hidden;
}

/* === header / nav === */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  height: 54px;
  padding: 0 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(0, 30, 10, 0.9);
  border-bottom: 1px solid var(--amber-dark);
  z-index: 10;
}

.site-title {
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--amber);
  white-space: nowrap;
}

.site-nav {
  display: flex;
  gap: 1.6rem;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.site-nav a {
  color: var(--amber-dark);
  text-decoration: none;
  opacity: 0.9;
  transition: color 120ms linear, opacity 120ms linear;
}

.site-nav a:hover {
  color: var(--amber);
  opacity: 1;
}

/* === footer === */
.site-footer {
  width: 100%;
  text-align: center;
  padding: 1.2rem 0;
  font-size: 0.85rem;
  color: rgba(0, 180, 90, 0.55);
  letter-spacing: 0.04em;
  position: relative;
  margin-top: 3rem;
}

/* === cards / content system === */
.section-title {
  font-size: 1rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  opacity: 0.9;
  margin: 0 0 1.5rem;
}

.placards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

/* Card: base */
.card {
  --accent: var(--amber);

  border: 1px solid rgba(255, 191, 0, 0.35);
  background: rgba(0, 0, 0, 0.65);
  padding: 1.1rem 1.2rem;
  box-shadow:
    0 0 6px color-mix(in srgb, var(--accent) 20%, transparent),
    inset 0 0 8px color-mix(in srgb, var(--accent) 15%, transparent);
  transition:
    transform 140ms ease-out,
    box-shadow 140ms ease-out,
    border-color 140ms ease-out;
}

.card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid rgba(255, 191, 0, 0.25);
  filter: drop-shadow(0 0 4px rgba(255, 191, 0, 0.25));
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card p {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  opacity: 0.85;
}

.card ul {
  margin: 0.35rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.8rem;
  opacity: 0.8;
}

.card li + li {
  margin-top: 0.1rem;
}

.card a.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

/* Accent variants only set the accent color */
.card.accent-amber   { --accent: #ffbf00; }
.card.accent-emerald { --accent: #00d080; }
.card.accent-cyan    { --accent: #18d7ff; }
.card.accent-violet  { --accent: #6a5cff; }

/* Shared hover logic that uses the accent */
.card:hover {
  transform: translateY(-4px);
  box-shadow:
    0 0 22px var(--accent),
    0 0 12px color-mix(in srgb, var(--accent) 40%, black);
  border-color: var(--accent);
}

.card:hover img {
  filter: drop-shadow(0 0 10px var(--accent));
  transition: filter 0.2s linear;
}

/* Mobile nav trigger */
.cyber-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: transparent;
  border: none;
  padding: 0.4rem;
  cursor: pointer;
  z-index: 12;
}

.cyber-hamburger span {
  width: 22px;
  height: 2px;
  background: var(--amber);
  display: block;
  box-shadow: 0 0 6px var(--amber);
  transition: transform 180ms ease, opacity 180ms ease;
}

.cyber-hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.cyber-hamburger.active span:nth-child(2) {
  opacity: 0;
}
.cyber-hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 750px) {
  .cyber-hamburger {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: 54px;
    left: 0;
    right: 0;
    background: rgba(0, 30, 10, 0.92);
    border-bottom: 1px solid var(--amber-dark);
    flex-direction: column;
    gap: 0;
    padding: 0.75rem 0;
    transform: translateY(-20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  }

  .site-nav a {
    width: 100%;
    padding: 0.85rem 1.6rem;
    text-align: center;
    border-top: 1px solid rgba(255, 191, 0, 0.08);
  }

  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-left {
    gap: 0.6rem;
  }

  .power-btn {
    margin-left: 0.8rem;
    padding: 0.45rem 1rem;
  }
}

/* === Low Power Button (Header Control) === */
.power-btn {
  margin-left: 1.5rem;
  padding: 0.35rem 0.9rem;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--amber);
  color: var(--amber);
  cursor: pointer;
  font-family: var(--font-mono);
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}

.power-btn:hover {
  background: rgba(0,0,0,0.55);
}

.power-btn.active {
  color: #00d080;
  border-color: #00d080;
}

/* Left-grouped header content */
.site-left {
  display: flex;
  align-items: center;
  gap: 1rem;    /* space between title + button */
}