/* NULSIG.NET interface layer. The original experiments remain in style.css. */
:root,
body[data-theme="phspr"] {
  --bg: #111410;
  --panel: #171c14;
  --ink: #edf0e4;
  --muted: #a9b09d;
  --faint: #8b967f;
  --line: #394232;
  --accent: #c5f277;
  --accent-rgb: 197, 242, 119;
  --secondary: #90b9a0;
  --warm: #d4b183;
}
body[data-theme="ambr"] {
  --bg: #19140e;
  --panel: #211a11;
  --ink: #f4eade;
  --muted: #bcaa92;
  --faint: #a38f76;
  --line: #4b3d2c;
  --accent: #ffc57a;
  --accent-rgb: 255, 197, 122;
  --secondary: #e89d62;
  --warm: #f2dbab;
}
body[data-theme="opncrnt"] {
  --bg: #080f25;
  --panel: #101b38;
  --ink: #e2eef4;
  --muted: #9eafc3;
  --faint: #839bb7;
  --line: #2d4264;
  --accent: #6ee3d8;
  --accent-rgb: 110, 227, 216;
  --secondary: #739df6;
  --warm: #f1a181;
}
body[data-theme="mono"] {
  --bg: #111111;
  --panel: #1a1a1a;
  --ink: #ededed;
  --muted: #b2b2b2;
  --faint: #929292;
  --line: #414141;
  --accent: #eeeeee;
  --accent-rgb: 238, 238, 238;
  --secondary: #bcbcbc;
  --warm: #d4d4d4;
}

:root { --channel-clearance: 67px; }
html { scroll-padding-bottom: calc(var(--channel-clearance) + 20px); }
body { padding-bottom: calc(var(--channel-clearance) + env(safe-area-inset-bottom, 0px)); }
.intro { color: var(--muted); }
dialog::backdrop { background: rgba(0, 0, 0, .86); }
.work-thumbnail { background: var(--panel); }
.art-stage {
  background-image: radial-gradient(rgba(var(--accent-rgb), .17) .65px, transparent .65px);
}
.lower-grid { border-top: 1px solid var(--line); }
.site-header { position: relative; z-index: 20; flex-wrap: nowrap; }
.brand { flex-shrink: 0; }
.brand-symbol { letter-spacing: -4px; }
.brand-symbol span { color: var(--warm); }
.brand small { letter-spacing: 1.08px; }
.navigation-control { position: relative; margin-left: auto; flex-shrink: 0; }

/* The three bars shed a few stepped text pixels into the directory below. */
.menu-toggle {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;
  min-height: 48px;
  min-width: 157px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  color: var(--accent);
  background: var(--panel);
  text-align: left;
  transition: border-color .2s, background .2s;
}
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  position: absolute;
  width: 4px;
  height: 4px;
  pointer-events: none;
  border-color: var(--accent);
}
.menu-toggle::before { top: -1px; left: -1px; border-top: 1px solid; border-left: 1px solid; }
.menu-toggle::after { bottom: -1px; right: -1px; border-right: 1px solid; border-bottom: 1px solid; }
.menu-label { color: var(--muted); font-size: 8px; letter-spacing: .7px; white-space: nowrap; }
.menu-state { color: var(--faint); font-size: 7px; letter-spacing: .4px; }
.menu-sigil { position: relative; display: block; flex: 0 0 34px; width: 34px; height: 23px; padding-top: 2px; }
.sigil-line {
  display: block;
  height: 6px;
  overflow: hidden;
  font-size: 5px;
  line-height: 4px;
  letter-spacing: .25px;
  white-space: nowrap;
  transform-origin: left center;
}
.sigil-line:nth-child(2) { color: var(--secondary); }
.sigil-line:nth-child(3) { color: var(--warm); }
.sigil-drips { position: absolute; left: 0; top: 19px; width: 34px; height: 12px; pointer-events: none; }
.sigil-drips i {
  position: absolute;
  display: block;
  top: 0;
  width: 3px;
  height: 3px;
  opacity: .7;
  background: var(--accent);
  animation: signal-drip 2.8s steps(4, end) infinite;
}
.sigil-drips i:nth-child(1) { left: 3px; animation-delay: -.8s; }
.sigil-drips i:nth-child(2) { left: 11px; animation-delay: -2.1s; background: var(--secondary); }
.sigil-drips i:nth-child(3) { left: 17px; animation-delay: -.2s; }
.sigil-drips i:nth-child(4) { left: 24px; animation-delay: -1.7s; background: var(--warm); }
.sigil-drips i:nth-child(5) { left: 31px; animation-delay: -1.1s; }
.menu-toggle:hover,
.menu-toggle[aria-expanded="true"] { border-color: var(--accent); background: rgba(var(--accent-rgb), .055); }
.menu-toggle:hover .sigil-line:nth-child(2) { transform: translateX(3px); }
.menu-toggle[aria-expanded="true"] .menu-label { color: var(--accent); }
.menu-toggle[aria-expanded="true"] .menu-state { color: var(--warm); }
.menu-toggle[aria-expanded="true"] .sigil-line:first-child { transform: translateX(4px); }
.menu-toggle[aria-expanded="true"] .sigil-line:nth-child(2) { transform: translateX(-2px); }
.menu-toggle[aria-expanded="true"] .sigil-line:nth-child(3) { transform: translateX(2px); }

.site-menu {
  position: absolute;
  top: calc(100% - 9px);
  right: 0;
  z-index: 30;
  width: 390px;
  max-width: calc(100vw - 8.4vw);
  max-height: calc(100dvh - 150px - var(--channel-clearance) - env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--line) var(--bg);
  scrollbar-width: thin;
  padding: 0 16px 0 24px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  background: var(--bg);
  box-shadow: 0 18px 45px #0008, -5px 5px 0 var(--panel);
  animation: directory-reveal .26s steps(5, end) both;
}
.site-menu[hidden] { display: none !important; }
.site-menu::before {
  content: "";
  position: absolute;
  top: 18px;
  bottom: 18px;
  left: 7px;
  width: 4px;
  background: repeating-linear-gradient(to bottom, var(--line) 0 3px, transparent 3px 6px);
  pointer-events: none;
}
.site-menu::after {
  content: "";
  position: absolute;
  top: -2px;
  right: 0;
  width: 36px;
  height: 2px;
  background: var(--warm);
}
.menu-topline {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 15px 0 13px;
  border-bottom: 1px solid var(--line);
  font-size: 7px;
  line-height: 1.6;
  letter-spacing: .45px;
  color: var(--accent);
}
#menu-status { text-align: right; color: var(--faint); }
.site-header .menu-pages { display: grid; gap: 0; width: 100%; padding: 5px 0; }
.menu-page {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) 22px;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 53px;
  padding: 9px 11px 9px 4px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  position: relative;
  color: var(--muted);
  transition: color .15s, background .15s;
}
.menu-page:last-child { border-bottom-color: transparent; }
.menu-index { color: var(--faint); font-size: 8px; letter-spacing: .6px; }
.menu-name { font-size: 17px; letter-spacing: 2px; }
.menu-arrow { font-size: 19px; line-height: 1; text-align: right; color: var(--faint); }
.menu-page:hover { color: var(--accent); background: rgba(var(--accent-rgb), .045); }
.menu-page[aria-pressed="true"] { color: var(--accent); background: rgba(var(--accent-rgb), .07); }
.menu-page[aria-pressed="true"]::before {
  content: "";
  position: absolute;
  left: -17px;
  top: calc(50% - 2px);
  width: 4px;
  height: 4px;
  background: var(--accent);
  box-shadow: 0 0 8px rgba(var(--accent-rgb), .35);
}
.menu-page[aria-pressed="true"] .menu-index,
.menu-page[aria-pressed="true"] .menu-arrow { color: var(--warm); }
.menu-footnote {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 7px;
  margin: 0;
  padding: 12px 0 14px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 7px;
  letter-spacing: 1px;
}

.menu-footnote span { color: var(--warm); font-size: 6px; letter-spacing: .4px; }
body.motion-paused .site-menu { animation: none !important; }

/* A persistent instrument rail. The document reserves its complete height. */
.open-channel {
  position: fixed;
  z-index: 40;
  inset: auto 0 0;
  padding-bottom: env(safe-area-inset-bottom, 0px);
  border-top: 1px solid var(--line);
  background: var(--bg);
  box-shadow: 0 -8px 24px #0003;
}
.open-channel::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 4.2%;
  width: 52px;
  height: 1px;
  background: var(--accent);
}
.channel-inner {
  display: grid;
  grid-template-columns: auto minmax(40px, 1fr) auto auto;
  align-items: center;
  gap: 18px;
  width: 100%;
  max-width: 1600px;
  min-height: 58px;
  padding: 6px 4.2%;
  margin-inline: auto;
}
.channel-title { color: var(--accent); font-size: 8px; letter-spacing: .7px; white-space: nowrap; }
.channel-title .status-dot { width: 4px; height: 4px; margin-right: 7px; vertical-align: 1px; }
.channel-scroll { min-width: 0; overflow: hidden; border-inline: 1px solid var(--line); color: var(--faint); }
.channel-scroll p {
  width: max-content;
  padding-block: 8px;
  font-size: 7px;
  line-height: 1.6;
  letter-spacing: .8px;
  white-space: nowrap;
  animation: channel-transmission 54s linear infinite;
}
.channel-themes { display: flex; align-items: center; gap: 3px; min-width: 0; }
.theme-label { color: var(--faint); font-size: 7px; letter-spacing: .7px; padding-right: 5px; }
.theme-option {
  position: relative;
  min-width: 44px;
  min-height: 40px;
  padding: 0 8px;
  color: var(--muted);
  font-size: 8px;
  letter-spacing: .45px;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: border-color .15s, color .15s, background .15s;
}
.theme-option:hover { color: var(--accent); border-color: var(--line); }
.theme-option[aria-pressed="true"] { color: var(--accent); border-color: var(--line); background: rgba(var(--accent-rgb), .055); }
.theme-option[aria-pressed="true"]::after {
  content: "";
  position: absolute;
  bottom: 5px;
  left: calc(50% - 2px);
  width: 4px;
  height: 2px;
  background: var(--accent);
}
.channel-motion {
  min-height: 40px;
  min-width: 96px;
  padding: 0 0 0 14px;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-size: 7px;
  line-height: 1.5;
  letter-spacing: .4px;
  text-align: right;
  white-space: nowrap;
}
.channel-motion span { color: var(--accent); font-size: 12px; vertical-align: -1px; margin-left: 6px; }
.channel-motion:hover,
.channel-motion[aria-pressed="true"] { color: var(--accent); }
.menu-toggle:focus-visible,
.menu-page:focus-visible,
.theme-option:focus-visible,
.channel-motion:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.menu-page:focus-visible { outline-offset: -2px; }

@keyframes signal-drip {
  0%, 54% { transform: translateY(0) scaleY(1); opacity: .65; }
  55%, 72% { transform: translateY(4px) scaleY(1.7); opacity: .85; }
  73%, 88% { transform: translateY(9px) scaleY(.7); opacity: .3; }
  89%, 100% { transform: translateY(12px) scaleY(.5); opacity: 0; }
}
@keyframes directory-reveal {
  from { clip-path: inset(0 0 100% 0); transform: translateY(-6px); }
  to { clip-path: inset(0); transform: translateY(0); }
}
@keyframes channel-transmission { to { transform: translateX(-50%); } }

@media (max-width: 1100px) {
  .channel-inner { gap: 12px; }
  .theme-option { padding-inline: 6px; font-size: 7px; }
  .channel-motion { min-width: 90px; padding-left: 10px; }
}
@media (max-width: 800px) {
  .site-header { align-items: center; gap: 14px; }
  .site-header .menu-pages { justify-content: initial; font-size: inherit; }
  .site-menu { max-width: 90vw; }
  .channel-inner { padding-inline: 5%; gap: 9px; }
  .open-channel::before { left: 5%; }
  .channel-title { font-size: 7px; letter-spacing: .3px; }
}
@media (max-width: 760px) {
  :root { --channel-clearance: 101px; }
  .channel-inner {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-rows: 30px 45px;
    column-gap: 12px;
    row-gap: 0;
    min-height: 88px;
    padding-block: 5px 8px;
  }
  .channel-title { grid-area: 1 / 1 / 2 / 2; font-size: 7px; }
  .channel-scroll { grid-area: 1 / 2 / 2 / 4; border-right: 0; padding-left: 12px; }
  .channel-scroll p { padding-block: 4px; font-size: 6px; }
  .channel-themes { grid-area: 2 / 1 / 3 / 3; gap: 3px; }
  .channel-motion { grid-area: 2 / 3 / 3 / 4; }
  .theme-option { min-width: 44px; padding-inline: 7px; font-size: 8px; }
  .theme-label { padding-right: 7px; }
  .channel-motion { min-width: 97px; font-size: 7px; padding-left: 14px; }
}
@media (max-width: 600px) {
  .site-header { gap: 10px; padding-block: 23px; }
  .brand { gap: 12px; font-size: 15px; letter-spacing: 1.7px; }
  .brand small { font-size: 5.5px; letter-spacing: .7px; margin-top: 7px; }
  .brand-symbol { font-size: 31px; padding-right: 15px; letter-spacing: -4px; }
  .menu-toggle { min-width: 76px; min-height: 46px; gap: 9px; padding-inline: 9px; }
  .menu-label { display: none; }
  .menu-state { font-size: 6px; letter-spacing: 0; }
  .menu-sigil { flex-basis: 31px; width: 31px; }
  .site-menu { padding-right: 13px; padding-left: 22px; top: calc(100% - 7px); }
  .menu-topline { font-size: 6px; gap: 8px; letter-spacing: .1px; }
  .menu-page { min-height: 49px; grid-template-columns: 25px minmax(0, 1fr) 20px; gap: 10px; }
  .menu-name { font-size: 15px; }
  .menu-footnote { font-size: 6px; letter-spacing: .7px; }
}
@media (max-width: 440px) {
  .channel-inner { column-gap: 8px; }
  .channel-themes { gap: 1px; }
  .theme-label { padding-right: 3px; font-size: 6px; }
  .theme-option { min-width: 40px; padding-inline: 5px; font-size: 7px; letter-spacing: .2px; }
  .channel-motion { min-width: 75px; padding-left: 7px; font-size: 6px; letter-spacing: .1px; }
  .channel-motion span { font-size: 10px; margin-left: 3px; }
  .channel-title { letter-spacing: .2px; }
}
@media (prefers-reduced-motion: reduce) {
  .sigil-drips i { animation: none !important; opacity: .55; }
  .site-menu { animation: none !important; }
  .channel-scroll p { animation: none !important; }
}