:root {
  --bg: #0a0a0a;
  --fg: #33ff00;
  --fg-dim: #1fbf00;
  --muted: #6ab66a;       /* bright enough to read on black, still reads as dimmed */
  --muted-2: #3f7a3f;     /* lines/dividers only */
  --amber: #ffb000;
  --err: #ff3333;
  --glow: 0 0 4px rgba(51, 255, 0, 0.45);
  --glow-strong: 0 0 8px rgba(51, 255, 0, 0.7);
  --mono: "JetBrains Mono", "Fira Code", "VT323", ui-monospace, SFMono-Regular, Menlo, monospace;
  --serif-mono: "VT323", "JetBrains Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.55;
  text-shadow: var(--glow);
  overflow-x: clip;            /* clip (not hidden) — hidden breaks position:sticky */
  scroll-behavior: smooth;
}
html { scroll-padding-top: 88px; }  /* anchors land below sticky header */

body {
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse at 50% 0%, rgba(51, 255, 0, 0.05) 0%, transparent 60%),
    linear-gradient(rgba(51, 255, 0, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(51, 255, 0, 0.025) 1px, transparent 1px);
  background-size: auto, 24px 24px, 24px 24px;
  background-position: top, 0 0, 0 0;
}

/* CRT + scanline overlays */
.crt-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0) 4px
  );
  mix-blend-mode: multiply;
}
.scanline {
  position: fixed;
  left: 0;
  right: 0;
  height: 140px;
  pointer-events: none;
  z-index: 9998;
  background: linear-gradient(to bottom, transparent, rgba(51, 255, 0, 0.04), transparent);
  animation: scan 8s linear infinite;
}
@keyframes scan {
  0% { transform: translateY(-140px); }
  100% { transform: translateY(100vh); }
}

/* Selection */
::selection { background: var(--fg); color: var(--bg); text-shadow: none; }

/* Links */
a { color: var(--fg); text-decoration: none; }
a:hover { background: var(--fg); color: var(--bg); text-shadow: none; }

/* Topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  /* opaque + slight blur so the canvas behind doesn't bleed through */
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--muted-2);
  padding: 10px 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  align-items: center;
  justify-content: space-between;
}
.topbar-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.topbar .bracket { color: var(--fg); }
.topbar .tag { font-weight: 700; letter-spacing: 0.12em; }
.topbar .v { color: var(--muted); }
.topbar .sep { color: var(--muted); }
.topbar .muted { color: var(--muted); }
.topbar .cmd { color: var(--amber); }
.topbar-nav { display: flex; gap: 16px; flex-wrap: wrap; }
.topbar-nav a { color: var(--fg); }
.topbar-nav .nav-cta { color: var(--amber); }
.topbar-nav .nav-cta:hover { background: var(--amber); color: var(--bg); }

/* Cursor */
.cursor {
  display: inline-block;
  width: 0.6em;
  color: var(--fg);
  animation: blink 1s steps(1) infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* Main */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* Hero */
.hero {
  border: 1px solid var(--muted);
  padding: 28px;
  margin-bottom: 48px;
  position: relative;
  background: var(--bg);
}
.hero::before {
  content: "+--- twin.init ---+";
  position: absolute;
  top: -10px;
  left: 20px;
  background: var(--bg);
  padding: 0 8px;
  color: var(--fg);
  letter-spacing: 0.08em;
  font-size: 13px;
}
.ascii-logo {
  color: var(--fg);
  font-size: 14px;
  line-height: 1.1;
  margin: 0 0 18px 0;
  white-space: pre;
  overflow-x: auto;
  text-shadow: var(--glow-strong);
  animation: flicker 4s infinite;
}
@keyframes flicker {
  0%, 100% { opacity: 1; }
  92% { opacity: 1; }
  93% { opacity: 0.7; }
  94% { opacity: 1; }
  96% { opacity: 0.85; }
  97% { opacity: 1; }
}
.tagline { font-size: 18px; margin: 8px 0 12px; }
.tagline .prompt { color: var(--amber); margin-right: 6px; }
.sub {
  margin: 0 0 20px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
  text-shadow: none;  /* kill the phosphor glow on descriptive copy — it reads as blur */
}
.sub .muted { color: var(--muted); text-shadow: none; }

.cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 28px; }
.btn {
  color: var(--fg);
  border: 0;
  padding: 10px 14px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  background: transparent;
  cursor: pointer;
  display: inline-block;
  transition: all 100ms steps(2);
}
.btn:hover {
  background: var(--fg);
  color: var(--bg);
  text-shadow: none;
}

/* Status panel */
.status-panel {
  color: var(--fg);
  font-size: 13px;
  line-height: 1.6;
}
.status-header, .status-footer { color: var(--muted); }
.status-row .label { color: var(--muted); display: inline-block; min-width: 80px; }
.status-row .v { color: var(--fg); }

/* Sections */
.section { margin-bottom: 56px; }
.section-title {
  font-size: 14px;
  color: var(--amber);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin: 0 0 16px 0;
  font-weight: 500;
}
.section-lead {
  max-width: 78ch;
  margin: 0 0 20px 0;
  color: var(--fg);
}
.section-lead.muted { color: var(--muted); }
.kw { color: var(--amber); }
.hl { background: rgba(51,255,0,0.1); padding: 0 2px; }

/* Graph */
.graph-wrap {
  border: 1px solid var(--muted);
  padding: 0;
  position: relative;
  background: radial-gradient(circle at 50% 50%, rgba(51,255,0,0.03) 0%, transparent 70%);
}
.graph-header {
  border-bottom: 1px solid var(--muted);
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.1em;
}
.graph-header .title { color: var(--fg); }
#graph-canvas {
  display: block;
  width: 100%;
  height: 520px;
  background: transparent;
}
.graph-legend {
  display: flex;
  gap: 20px;
  padding: 10px 14px;
  border-top: 1px solid var(--muted);
  font-size: 12px;
  color: var(--muted);
  flex-wrap: wrap;
}
.graph-legend .sw {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 6px;
  vertical-align: middle;
  border: 1px solid var(--fg);
}
.sw-core { background: var(--fg); }
.sw-area { background: var(--fg); opacity: 0.55; }
.sw-entity { background: transparent; }
.sw-daily { background: var(--amber); border-color: var(--amber); }
.sw-pulse { background: #bfffb0; border-color: #bfffb0; box-shadow: 0 0 6px #bfffb0; }

/* CLI Demo */
.cli-demo {
  margin-top: 28px;
  border: 1px solid var(--fg);
  box-shadow: 0 0 18px rgba(51, 255, 0, 0.12);
  background: var(--bg);
  position: relative;
}
.cli-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--muted-2);
  background: rgba(51, 255, 0, 0.035);
}
.cli-tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-right: 1px solid var(--muted-2);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 10px 14px;
  cursor: pointer;
  text-shadow: none;
  transition: color 120ms steps(2), background 120ms steps(2);
  white-space: nowrap;
}
.cli-tab:hover { color: var(--fg); background: rgba(51, 255, 0, 0.06); }
.cli-tab.active {
  color: var(--fg);
  background: rgba(51, 255, 0, 0.1);
  text-shadow: var(--glow);
  border-top: 2px solid var(--fg);
  margin-top: -1px;
  padding-top: 8px;
}
.cli-tab:focus-visible { outline: 1px dashed var(--amber); outline-offset: -3px; }

.cli-window { display: block; }
.cli-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-bottom: 1px dashed var(--muted-2);
  font-size: 12px;
  color: var(--muted);
}
.cli-dot {
  width: 10px;
  height: 10px;
  border: 1px solid var(--muted-2);
  display: inline-block;
}
.cli-dot-r { background: #552222; }
.cli-dot-y { background: #554422; }
.cli-dot-g { background: #224422; }
.cli-title { margin-left: 8px; color: var(--muted); }
.cli-timer {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.cli-timer.running { color: var(--amber); }
.cli-screen {
  padding: 16px 18px 20px;
  min-height: 340px;
  font-size: 13px;
  line-height: 1.55;
  background:
    linear-gradient(rgba(51,255,0,0.02) 1px, transparent 1px) 0 0 / 100% 3px,
    transparent;
}
.cli-prompt-line { margin-bottom: 6px; white-space: pre-wrap; word-break: break-word; }
.cli-user { color: var(--fg); text-shadow: var(--glow); }
.cli-sep { color: var(--muted); }
.cli-path { color: var(--amber); }
.cli-cmd { margin-left: 6px; color: var(--fg); text-shadow: var(--glow); }
.cli-cursor {
  display: inline-block;
  width: 0.55em;
  color: var(--fg);
  animation: blink 1s steps(1) infinite;
  margin-left: 2px;
  vertical-align: baseline;
}
.cli-output {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--fg);
}
.cli-output .l {
  display: block;
  opacity: 0;
  transform: translateY(2px);
  animation: cli-in 90ms steps(2) forwards;
}
@keyframes cli-in {
  from { opacity: 0; transform: translateY(2px); }
  to   { opacity: 1; transform: translateY(0); }
}
.cli-output .tok-header { color: var(--amber); text-shadow: 0 0 4px rgba(255,176,0,0.4); }
.cli-output .tok-ok     { color: var(--fg); }
.cli-output .tok-warn   { color: var(--amber); }
.cli-output .tok-err    { color: var(--err); }
.cli-output .tok-muted  { color: var(--muted); text-shadow: none; }
.cli-output .tok-wl     { color: var(--amber); }  /* [[wikilinks]] */
.cli-output .tok-arrow  { color: var(--muted); }
.cli-output .tok-num    { color: #bfffb0; }

@media (max-width: 640px) {
  .cli-tab { font-size: 11px; padding: 8px 10px; }
  .cli-screen { font-size: 12px; min-height: 320px; }
}

/* Two column */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }

.pane {
  border: 1px solid var(--muted);
  padding: 16px;
  position: relative;
}
.pane-header {
  color: var(--muted);
  font-size: 13px;
  margin: -16px -16px 12px -16px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--muted);
  background: rgba(51,255,0,0.03);
}
.pane p { margin: 0; color: var(--fg); }
.layers { margin: 0; font-size: 14px; }

/* Architecture two-column layout */
.arch-cols { align-items: start; }
.arch-stack { display: flex; flex-direction: column; gap: 12px; }
.arch-body {
  margin: 0;
  font-size: 12px;
  line-height: 1.55;
  color: var(--fg);
  white-space: pre;
  overflow-x: auto;
}

/* Man page table */
.man-page {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  border: 1px solid var(--muted);
}
.man-page th, .man-page td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px dashed var(--muted);
  vertical-align: top;
}
.man-page th {
  text-transform: uppercase;
  font-weight: 500;
  color: var(--amber);
  letter-spacing: 0.1em;
  background: rgba(51,255,0,0.03);
  border-bottom: 1px solid var(--muted);
}
.man-page td:first-child { color: var(--fg); white-space: nowrap; }
.man-page td:nth-child(2) { color: var(--muted); white-space: nowrap; }
.man-page td:nth-child(3) { color: var(--fg-dim); }
.man-page tr:hover td { background: rgba(51,255,0,0.05); }

/* Phases */
.phases {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.phase {
  border: 1px solid var(--muted);
  padding: 14px;
  position: relative;
}
.phase.active { border-color: var(--fg); box-shadow: 0 0 10px rgba(51,255,0,0.15); }
.phase .phase-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.phase.active .phase-head .state { color: var(--amber); }
.phase .phase-title {
  font-size: 18px;
  color: var(--fg);
  text-transform: lowercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.phase .phase-body { font-size: 13px; color: var(--fg-dim); margin-bottom: 12px; }
.phase .phase-progress { font-size: 13px; color: var(--muted); }
.phase.active .phase-progress { color: var(--fg); }

/* Waitlist */
.waitlist { margin: 0; }
.waitlist-frame {
  border: 1px solid var(--fg);
  background: radial-gradient(ellipse at 50% 0%, rgba(51,255,0,0.04) 0%, transparent 70%);
  box-shadow: 0 0 16px rgba(51,255,0,0.12);
  position: relative;
}
.waitlist-header {
  padding: 10px 16px;
  border-bottom: 1px solid var(--muted);
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.05em;
}
.waitlist-header .title { color: var(--fg); }
.waitlist-header .bracket { color: var(--fg); }
.waitlist-body { padding: 20px 18px 16px; }
.wl-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 16px;
}
.wl-prompt { color: var(--amber); }
.wl-label { color: var(--muted); text-transform: lowercase; letter-spacing: 0.05em; }
.wl-sep { color: var(--muted); }
.wl-row + .wl-row { margin-top: 10px; }
.wl-row input[type="email"],
.wl-row input[type="text"] {
  flex: 1;
  min-width: 180px;
  background: transparent;
  border: 0;
  outline: none;
  color: var(--fg);
  font-family: var(--mono);
  font-size: 16px;
  padding: 4px 0;
  caret-color: var(--fg);
  text-shadow: var(--glow);
  border-bottom: 1px dashed var(--muted-2);
}
.wl-row input::placeholder { color: var(--muted-2); }
.wl-row input:focus { border-bottom-color: var(--fg); }
.wl-label { color: var(--muted); text-transform: lowercase; letter-spacing: 0.05em; min-width: 46px; display: inline-block; }
.wl-cursor {
  color: var(--fg);
  animation: blink 1s steps(1) infinite;
}
.wl-row input[type="email"]:focus + .wl-cursor { color: var(--amber); }
.wl-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed var(--muted);
}
.wl-actions .btn { padding: 8px 14px; }
.wl-hint { font-size: 12px; }
.wl-output {
  margin-top: 12px;
  min-height: 20px;
  font-size: 14px;
  color: var(--fg);
  white-space: pre-wrap;
  word-break: break-word;
}
.wl-output.err { color: var(--err); }
.wl-output.ok { color: var(--fg); }
.waitlist-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 12px;
}
.waitlist-footer .sep { color: var(--muted-2); }

/* Field log */
.field-log {
  margin: 0;
  padding: 16px;
  border: 1px solid var(--muted);
  font-size: 13px;
  color: var(--fg);
  overflow-x: auto;
  white-space: pre;
}
.field-log .muted { color: var(--muted); }
.field-log .ok { color: var(--amber); }

/* Footer */
.foot {
  border-top: 1px solid var(--muted);
  padding: 18px 24px 40px;
  max-width: 1200px;
  margin: 0 auto;
  font-size: 12px;
}
.foot-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 4px; color: var(--muted); align-items: center; }
.foot .sep { color: var(--muted-2); }
.foot-link { color: var(--amber); border-bottom: 1px dashed var(--muted-2); padding: 2px 4px; }
.foot-link:hover { background: var(--amber); color: var(--bg); text-shadow: none; border-bottom-color: transparent; }

/* Mobile tweaks */
@media (max-width: 640px) {
  main { padding: 20px 14px 60px; }
  .hero { padding: 18px 14px; }
  .ascii-logo { font-size: 9px; }
  #graph-canvas { height: 400px; }
  .topbar { padding: 8px 14px; font-size: 13px; }
  .topbar-nav { gap: 8px; font-size: 12px; }
}