/* denialperch.com — green-on-black terminal. No external fonts, no CDN, no network calls. */

:root {
  color-scheme: dark;

  --bg: #050705;
  --panel: #0b0f0c;
  --panel-2: #111710;
  --line: #1d2a1f;
  --line-soft: #16201800;

  --fg: #c6d6c8;
  --fg-dim: #7d8f82;
  --fg-faint: #55655a;

  --green: #3fb950;
  --green-bright: #56d364;
  --green-glow: rgba(63, 185, 80, 0.18);
  --amber: #d29922;

  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", Menlo, Consolas,
    "DejaVu Sans Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 13px/1.5 var(--mono);
}

body {
  background-image: radial-gradient(
    ellipse 80% 60% at 50% -10%,
    rgba(63, 185, 80, 0.06),
    transparent 70%
  );
  background-attachment: fixed;
}

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

/* ---------- top bar ---------- */
.topbar {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 {
  font-size: 14px;
  margin: 0;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green-bright);
  font-weight: 600;
}
.topbar .sub { color: var(--fg-faint); font-size: 11px; }
.spacer { flex: 1; }

.prompt::before {
  content: "$ ";
  color: var(--green);
}

.cursor {
  display: inline-block;
  width: 7px;
  height: 13px;
  background: var(--green);
  vertical-align: text-bottom;
  animation: blink 1.15s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
}

.chip {
  font-size: 11px;
  padding: 2px 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--fg-dim);
  background: var(--panel-2);
  white-space: nowrap;
}

/* ---------- shell ---------- */
main {
  width: min(1000px, 92vw);
  margin: 0 auto;
  padding: 26px 0 60px;
}

.lede {
  color: var(--fg-faint);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  margin: 0 0 22px;
}

.sec-label {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin: 0 0 12px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 7px;
}

/* ---------- flip card grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (max-width: 640px) {
  .grid { grid-template-columns: 1fr; }
}

.card {
  display: block;
  perspective: 1100px;
  height: 132px;
  border-radius: 4px;
  outline: none;
}

.card-inner {
  /* display:block is load-bearing: this is a <span>, and inline boxes ignore
     width/height. Without it the flip container collapses to one line box,
     the absolutely-positioned faces resolve against that, and every card
     renders as just its index number on hover-capable browsers. */
  display: block;
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s cubic-bezier(0.22, 0.61, 0.36, 1);
  transform-style: preserve-3d;
}

.card:hover .card-inner,
.card:focus-visible .card-inner { transform: rotateY(180deg); }

.card-face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 14px 15px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--panel);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
  overflow: hidden;
}

.card:hover .card-face,
.card:focus-visible .card-face {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green-glow), 0 0 22px var(--green-glow);
}

.card-back {
  transform: rotateY(180deg);
  background: var(--panel-2);
}

.card-idx {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--fg-faint);
}

.card-name {
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--green-bright);
  margin: 0;
  font-weight: 600;
}

.card-meta {
  font-size: 10.5px;
  color: var(--fg-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-blurb {
  display: block;
  font-size: 12px;
  line-height: 1.55;
  color: var(--fg-dim);
  margin: 0;
  overflow: hidden;
}
.card-blurb:empty::before {
  content: "— no description yet —";
  color: var(--fg-faint);
  font-style: italic;
}

.card-go {
  font-size: 11px;
  color: var(--green);
  letter-spacing: 0.08em;
}

/* Touch / no-hover devices: never hide content behind a flip. */
@media (hover: none) {
  .card { height: auto; perspective: none; }
  .card-inner { transform: none !important; transform-style: flat; }
  .card-face { position: static; backface-visibility: visible; }
  .card-back {
    transform: none;
    border-top: 0;
    border-radius: 0 0 4px 4px;
    margin-top: -1px;
  }
  .card-front { border-radius: 4px 4px 0 0; }
}

@media (prefers-reduced-motion: reduce) {
  .card-inner { transition: none; }
}

/* ---------- section menu pages ---------- */
.menu { list-style: none; padding: 0; margin: 0; }
.menu li { border-top: 1px solid var(--line); }
.menu li:last-child { border-bottom: 1px solid var(--line); }

.menu a {
  display: block;
  padding: 15px 12px;
  color: var(--fg);
  border-left: 2px solid transparent;
  transition: background 0.12s linear, border-color 0.12s linear;
}
.menu a:hover, .menu a:focus-visible {
  background: var(--panel);
  border-left-color: var(--green);
  color: var(--green-bright);
  outline: none;
}
.menu a::before { content: "› "; color: var(--fg-faint); }
.menu a:hover::before { color: var(--green); }
.menu .note {
  display: block;
  color: var(--fg-faint);
  font-size: 11px;
  margin-top: 3px;
  padding-left: 13px;
}

.empty-state {
  border: 1px dashed var(--line);
  border-radius: 4px;
  padding: 30px 18px;
  text-align: center;
  color: var(--fg-faint);
  font-size: 12px;
}

/* ---------- breadcrumb / footer ---------- */
.crumb { font-size: 11px; color: var(--fg-faint); margin: 0 0 18px; }
.crumb a { color: var(--fg-dim); }
.crumb a:hover { color: var(--green); }

footer {
  margin-top: 40px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 10.5px;
  color: var(--fg-faint);
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}