@font-face {
  font-family: "Grotesk";
  src: url("/Grotesk.otf") format("opentype");
  font-display: swap;
}

:root {
  --ink: #202020;
  --muted: #777;
  --paper: #fafafa;
  --panel: #f1f1ed;
  --line: #d5d5d0;
  --line-dark: #202020;
  --border-strong: #e5e5e5;
  --signal: #b01919;
  --accent: #444;
  --font-grotesk: "Grotesk", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Mono", Consolas, "Liberation Mono", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  min-height: 100%;
  max-width: 100%;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
}

body {
  width: 100%;
  max-width: 100%;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 76% 18%, rgba(0, 0, 0, 0.025), transparent 27rem),
    var(--paper);
  font-family: var(--font-grotesk);
}

button,
textarea {
  font: inherit;
}

button,
a {
  color: inherit;
}

button {
  border-radius: 0;
}

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

.skip-link,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link:focus {
  z-index: 100;
  top: 8px;
  left: 8px;
  width: auto;
  height: auto;
  padding: 8px 12px;
  clip: auto;
  background: var(--paper);
  border: 1px solid var(--ink);
}

#main-nav {
  position: fixed;
  top: env(safe-area-inset-top, 0);
  left: 0;
  z-index: 1000;
  width: 100%;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--border-strong);
  box-sizing: border-box;
  opacity: 0;
  font-family: var(--font-grotesk);
  backdrop-filter: blur(8px);
  transition: opacity 0.4s ease;
}

#main-nav.visible {
  opacity: 1;
}

#main-nav ul#nav-list {
  display: flex;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

#main-nav a {
  padding: 6px 12px;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: color 0.2s ease;
}

#main-nav a:hover {
  color: var(--ink);
  text-decoration: none;
}

@supports (padding: max(0px)) {
  #main-nav {
    padding-left: max(24px, env(safe-area-inset-left));
    padding-right: max(24px, env(safe-area-inset-right));
  }
}

.transmissions-page {
  width: min(1500px, calc(100% - 48px));
  max-width: calc(100vw - 48px);
  margin: 0 auto;
  padding: calc(56px + clamp(38px, 5vw, 72px)) 0 32px;
}

[data-transmission-animate] {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition:
    opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: opacity, transform;
}

.transmissions-page.is-visible [data-transmission-animate] {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

.transmissions-page.is-visible [data-transmission-animate]:nth-child(2) {
  transition-delay: 0.08s;
}

.transmissions-page.is-visible [data-transmission-animate]:nth-child(3) {
  transition-delay: 0.16s;
}

.transmissions-header {
  margin-bottom: 14px;
}

.section-label {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-grotesk);
  font-size: clamp(1.6rem, 3.2vh, 2.3rem);
  font-weight: 400;
  letter-spacing: 0.15em;
}

.caption-kicker,
.gate-kicker {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.section-description {
  max-width: 680px;
  margin: 7px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 1.35vh, 0.78rem);
  line-height: 1.45;
  text-align: left;
}

.archive-rule,
.receiver-bar,
.panel-header,
.runtime-notice {
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.archive-rule {
  min-height: 34px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.archive-rule b,
.panel-header b {
  font-weight: inherit;
}

.transmissions-layout {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(235px, 0.28fr) minmax(0, 1fr);
  border-bottom: 1px solid var(--line-dark);
}

.work-index {
  min-width: 0;
  border-right: 1px solid var(--line-dark);
}

.piece-list {
  position: sticky;
  top: 56px;
}

.loading-copy {
  padding: 24px 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.piece-entry {
  width: 100%;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr) 16px;
  gap: 10px;
  align-items: start;
  padding: 16px 14px 16px 0;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  text-align: left;
  cursor: pointer;
}

.piece-entry:hover,
.piece-entry[aria-current="true"] {
  background: var(--panel);
}

.piece-number,
.piece-medium,
.piece-mark {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  line-height: 1.4;
}

.piece-entry strong {
  display: block;
  margin-bottom: 5px;
  font-size: 0.92rem;
  font-weight: 400;
  line-height: 1.15;
}

.piece-mark {
  text-align: right;
}

.receiver {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  overflow: hidden;
}

.receiver-bar {
  min-height: 34px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 0 12px;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}

.engine-state {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.engine-state i {
  width: 7px;
  height: 7px;
  display: inline-block;
  background: var(--muted);
  border-radius: 50%;
}

.engine-state[data-tone="busy"] i {
  background: #bb7600;
  animation: status-pulse 0.8s steps(2, end) infinite;
}

.engine-state[data-tone="running"] i {
  background: #147a37;
  box-shadow: 0 0 0 3px rgba(20, 122, 55, 0.12);
}

.engine-state[data-tone="error"] i {
  background: var(--signal);
}

@keyframes status-pulse {
  50% {
    opacity: 0.25;
  }
}

.receiver-display {
  position: relative;
  min-height: clamp(235px, 31vw, 460px);
  overflow: hidden;
  background: #e9e9e4;
  border-bottom: 1px solid var(--line-dark);
}

#signal-scope,
.scope-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

#signal-scope {
  z-index: 2;
}

.scope-grid {
  background-image:
    linear-gradient(to right, rgba(0, 0, 0, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 0, 0, 0.07) 1px, transparent 1px);
  background-size: 8.333% 25%;
}

.scope-grid::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  border-top: 1px solid rgba(0, 0, 0, 0.22);
}

.scope-readout {
  position: absolute;
  z-index: 3;
  right: 12px;
  bottom: 9px;
  left: 12px;
  display: flex;
  justify-content: space-between;
  color: rgba(0, 0, 0, 0.58);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
}

.engine-gate {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 12px;
  padding: 28px;
  background: rgba(233, 233, 228, 0.9);
  text-align: center;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.engine-gate.is-open {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.engine-gate p {
  max-width: 520px;
  margin: 0;
}

#gate-copy {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.55;
}

.gate-note {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.58rem;
}

.engine-gate button,
.transport button,
.action-button,
.panel-header button {
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
}

.engine-gate button {
  min-width: 190px;
  padding: 12px 20px;
}

.engine-gate button:hover,
.transport button:hover:not(:disabled),
.action-button:hover:not(:disabled) {
  color: var(--paper);
  background: var(--ink);
}

.transport {
  display: flex;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--line-dark);
}

.transport button {
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-right: 1px solid var(--line-dark);
}

.transport button:disabled,
.action-button:disabled {
  color: #aaa;
  cursor: not-allowed;
}

#debug-toggle {
  margin-left: auto;
  border-right: 0;
  border-left: 1px solid var(--line-dark);
}

#debug-toggle.is-active {
  color: var(--paper);
  background: var(--ink);
}

.piece-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 1px solid var(--line-dark);
}

.control-group {
  min-width: 180px;
  display: grid;
  grid-template-columns: auto minmax(100px, 1fr) 42px;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.control-group input {
  width: 100%;
  accent-color: var(--ink);
}

.control-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.action-group {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
}

.control-label {
  margin-right: 4px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.action-button {
  padding: 7px 10px;
}

.source-console {
  width: 100%;
  max-width: 100%;
  height: clamp(360px, 58vh, 620px);
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}

.source-console[hidden] {
  display: none;
}

.source-panel,
.console-panel {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: 32px minmax(0, 1fr) auto;
}

.source-panel {
  border-right: 1px solid var(--line-dark);
}

.console-panel {
  grid-template-rows: 32px minmax(0, 1fr);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 0 10px;
  border-bottom: 1px solid var(--line);
}

.panel-header button {
  padding: 3px 6px;
  border-color: var(--line);
  background: transparent;
}

#source-editor,
#post-window {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  min-height: 0;
  height: 100%;
  margin: 0;
  padding: 14px;
  color: #252525;
  background: #f6f6f2;
  border: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 0.85vw, 0.76rem);
  line-height: 1.55;
  tab-size: 4;
}

#source-editor {
  display: block;
  overflow: auto;
  resize: none;
  outline: none;
}

#source-editor[readonly] {
  caret-color: transparent;
  cursor: text;
}

#source-editor:focus {
  box-shadow: inset 0 0 0 2px var(--ink);
}

#post-window {
  max-height: 100%;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  background: #252525;
  color: #d8d8d2;
}

.panel-note {
  margin: 0;
  padding: 7px 10px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.58rem;
  line-height: 1.45;
}

.audio-snippet {
  display: grid;
  grid-template-columns: minmax(190px, 0.35fr) minmax(0, 1fr);
  align-items: center;
  gap: 24px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-dark);
  background: var(--panel);
  font-family: var(--font-mono);
}

.audio-snippet[hidden] {
  display: none;
}

.audio-snippet p,
.audio-snippet span {
  margin: 0;
  font-size: 0.62rem;
  letter-spacing: 0.09em;
}

.audio-snippet span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}

.audio-snippet audio {
  width: 100%;
  height: 34px;
  border-radius: 0;
}

.work-caption {
  display: grid;
  grid-template-columns: minmax(230px, 0.65fr) minmax(0, 1fr);
  gap: 30px;
  padding: clamp(20px, 3vw, 34px) 0 clamp(24px, 4vw, 46px) 28px;
}

.work-caption h2 {
  margin: 8px 0 0;
  font-size: clamp(1.8rem, 3.8vw, 3.8rem);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 0.95;
}

#piece-description {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.6;
}

details {
  max-width: 650px;
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  line-height: 1.55;
}

summary {
  color: var(--ink);
  cursor: pointer;
  letter-spacing: 0.06em;
}

details ul {
  margin: 9px 0 0;
  padding-left: 18px;
}

.runtime-notice {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.runtime-notice p {
  margin: 0;
}

.runtime-notice a {
  color: var(--ink);
}

noscript {
  display: block;
  padding: 20px;
  background: #ffe9e9;
  font-family: var(--font-mono);
}

button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible,
pre:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (max-width: 980px) {
  .transmissions-layout {
    grid-template-columns: 1fr;
  }

  .work-index {
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
    overflow: hidden;
  }

  .piece-list {
    position: static;
    display: flex;
    min-width: max-content;
    overflow-x: auto;
  }

  .piece-entry {
    width: 255px;
    padding-left: 10px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .source-console {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(300px, 1fr) minmax(180px, 0.72fr);
    height: min(760px, 78vh);
  }

  .source-panel {
    border-right: 0;
    border-bottom: 1px solid var(--line-dark);
  }

  .console-panel #post-window {
    min-height: 0;
    max-height: 100%;
  }
}

@media (max-width: 768px) {
  #main-nav ul#nav-list {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    width: 100%;
    height: 100vh;
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 30px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
  }

  #main-nav ul#nav-list.mobile-nav-open {
    display: flex;
  }
}

@media (min-width: 769px) {
  #main-nav ul#nav-list {
    position: static;
    width: auto;
    height: auto;
    display: flex;
    padding: 0;
    background: transparent;
    box-shadow: none;
    visibility: visible;
    transform: none;
  }
}

@media (max-width: 640px) {
  .transmissions-page {
    width: min(100% - 24px, 1500px);
    max-width: calc(100vw - 24px);
    padding-top: 88px;
  }

  .section-label {
    font-size: 2rem;
  }

  .archive-rule {
    font-size: 0.56rem;
  }

  .receiver-bar {
    align-items: flex-start;
    padding-top: 8px;
    padding-bottom: 8px;
  }

  .receiver-display {
    min-height: 270px;
  }

  .transport {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .transport button {
    border-bottom: 1px solid var(--line);
  }

  #debug-toggle {
    margin-left: 0;
    border-left: 0;
  }

  .control-group {
    width: 100%;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .work-caption {
    grid-template-columns: 1fr;
    gap: 20px;
    padding-left: 0;
  }

  .runtime-notice {
    flex-direction: column;
  }

  .audio-snippet {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  [data-transmission-animate] {
    transition-duration: 0.01ms;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}