/* ---------- tokens ---------- */
:root {
  --glass: #17120d;      /* warm CRT glass */
  --phosphor: #ffb547;   /* amber phosphor */
  --ember: #a8783c;      /* dimmed phosphor: secondary text, rules */
  --paper: #efe1c6;      /* body text */
  --alert: #ff6b57;      /* "open" state only */
  --rule: #3b2e20;

  --mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", monospace;
  --crt: "VT323", var(--mono);

  --step-0: 1rem;
  --step-1: 1.125rem;
  --display: clamp(3rem, 11vw, 7.5rem);
  --measure: 72ch;
}

* { box-sizing: border-box; }

html { background: var(--glass); }

body {
  margin: 0;
  background: var(--glass);
  color: var(--paper);
  font-family: var(--mono);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* faint scanlines over the whole page */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(0, 0, 0, .18) 2px 3px);
}

::selection { background: var(--phosphor); color: var(--glass); }

a { color: var(--phosphor); text-underline-offset: 3px; }
a:hover { color: var(--paper); }

:focus-visible { outline: 2px solid var(--phosphor); outline-offset: 3px; }

.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--phosphor); color: var(--glass); padding: 4px 8px; z-index: 10; }

/* ---------- session layout ---------- */
.session {
  max-width: calc(var(--measure) + 32px);
  margin: 0 auto;
  padding: clamp(32px, 8vh, 96px) 16px 48px;
}

section { margin-top: 72px; }

p { margin: 0 0 12px; max-width: var(--measure); }

.cmd {
  font-size: var(--step-1);
  font-weight: 500;
  color: var(--paper);
  margin: 0 0 16px;
}
.ps1 { color: var(--phosphor); margin-right: .6ch; }
.out { color: var(--paper); }
.dim { color: var(--ember); }
strong { color: var(--phosphor); font-weight: 600; }

/* ---------- hero ---------- */
.report h1 { margin: 28px 0 20px; font-weight: 400; }
.report-label {
  display: block;
  font-size: var(--step-1);
  color: var(--ember);
}
.name {
  display: block;
  font-family: var(--crt);
  font-size: var(--display);
  line-height: .9;
  color: var(--phosphor);
  text-shadow: 0 0 18px rgba(255, 181, 71, .35);
  letter-spacing: .01em;
}

/* port table */
.ports {
  margin: 28px 0 10px;
  overflow-x: auto;
}
.row {
  display: grid;
  grid-template-columns: 9ch 9ch 17ch minmax(18ch, 1fr);
  gap: 0 1.5ch;
  min-width: 56ch;
}
.row.head { color: var(--ember); }
.st.open { color: var(--alert); }
.st.filtered { color: var(--ember); }
.legend { font-size: .875rem; }

/* line-by-line scan reveal (one moment, on load) */
.reveal { opacity: 0; }
.reveal.on { opacity: 1; }

/* ---------- listings ---------- */
.listing { list-style: none; margin: 0; padding: 0; }
.listing li {
  padding: 14px 0;
  border-top: 1px solid var(--rule);
}
.listing li:last-child { border-bottom: 1px solid var(--rule); }
.entry-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0 2ch;
  align-items: baseline;
}
.perm { color: var(--ember); }
.entry-name { color: var(--phosphor); font-weight: 600; }
.entry-desc { margin: 4px 0 0; }
.tags { margin: 4px 0 0; color: var(--ember); font-size: .875rem; }
.empty { color: var(--ember); border: 0 !important; padding-left: 0; }

/* ---------- contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 12ch 1fr;
  gap: 6px 2ch;
  margin: 0;
}
.contact dt { color: var(--ember); }
.contact dd { margin: 0; word-break: break-word; }

/* ---------- interactive shell ---------- */
.shell {
  border-top: 1px dashed var(--ember);
  padding-top: 24px;
}
.shell h2 { font-size: var(--step-0); font-weight: 400; margin: 0 0 12px; }
kbd { font-family: var(--mono); color: var(--phosphor); }
.shell-log { white-space: pre-wrap; }
.shell-log .echo { color: var(--paper); }
.shell-log .res { color: var(--ember); margin-bottom: 8px; }
.shell-line { display: flex; align-items: baseline; gap: 0; }
.shell-line input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 0;
  color: var(--paper);
  font: inherit;
  caret-color: var(--phosphor);
  padding: 0;
}
.shell-line input:focus-visible { outline: none; }
.shell-line:focus-within .ps1 { text-shadow: 0 0 10px rgba(255, 181, 71, .6); }

footer { margin-top: 56px; font-size: .875rem; }

/* ---------- rickroll overlay ---------- */
.tape {
  position: fixed;
  inset: 0;
  z-index: 20;
  background: rgba(10, 8, 5, .92);
  display: grid;
  place-items: center;
  padding: 16px;
}
.tape[hidden] { display: none; }
.tape-frame {
  width: min(900px, 100%);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--phosphor);
}
.tape-frame iframe { width: 100%; height: 100%; border: 0; display: block; }
.tape-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: transparent;
  color: var(--phosphor);
  border: 1px solid var(--phosphor);
  font: inherit;
  padding: 4px 10px;
  cursor: pointer;
}
.tape-close:hover { background: var(--phosphor); color: var(--glass); }

/* ---------- small screens & motion ---------- */
@media (max-width: 560px) {
  .row { grid-template-columns: 9ch 9ch 1fr; min-width: 0; }
  .row > :nth-child(4) { grid-column: 1 / -1; color: var(--ember); padding-bottom: 6px; }
  .row.head > :nth-child(4) { display: none; }
  .contact { grid-template-columns: 1fr; gap: 0; }
  .contact dd { margin-bottom: 10px; }
  .shell-line { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; }
}