/* The Buzzer — audio-reactive browser film */
:root {
  --bz-black: #050604;
  --bz-paper: #e4e1ce;
  --bz-acid: #c6ff1a;
  --bz-red: #ff3b21;
  --bz-dim: rgba(228, 225, 206, 0.58);
  --bz-line: rgba(228, 225, 206, 0.24);
  --bz-energy: 0;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html,
.bz-body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bz-black);
  color: var(--bz-paper);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

.bz-body {
  min-height: 100dvh;
  overflow: hidden;
}

button,
input { font: inherit; }

button,
a { -webkit-tap-highlight-color: transparent; }

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--bz-acid);
  outline-offset: 3px;
}

.bz-app {
  position: relative;
  width: 100vw;
  height: 100dvh;
  min-height: 32rem;
  overflow: hidden;
  isolation: isolate;
  background: var(--bz-black);
}

.bz-butterchurn,
.bz-film,
.bz-scanlines,
.bz-grain {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.bz-butterchurn {
  z-index: 0;
  opacity: 0;
  pointer-events: none;
  filter: saturate(1.55) contrast(1.2) brightness(0.68);
  transform: scale(1.025);
  transition: opacity 1.8s ease;
}

.is-entered.has-butterchurn .bz-butterchurn {
  opacity: calc(0.17 + var(--bz-energy) * 0.3);
}

.bz-film {
  z-index: 1;
  mix-blend-mode: screen;
}

.bz-scanlines {
  z-index: 5;
  pointer-events: none;
  opacity: 0.34;
  background: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent 2px,
    rgba(0, 0, 0, 0.34) 3px,
    rgba(0, 0, 0, 0.34) 4px
  );
  mix-blend-mode: multiply;
}

.bz-grain {
  z-index: 6;
  pointer-events: none;
  opacity: calc(0.035 + var(--bz-energy) * 0.08);
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.9'/%3E%3C/svg%3E");
  background-size: 180px 180px;
  animation: bz-grain 190ms steps(2) infinite;
  mix-blend-mode: screen;
}

@keyframes bz-grain {
  0% { transform: translate3d(-2%, -3%, 0) scale(1.05); }
  25% { transform: translate3d(3%, 1%, 0) scale(1.08); }
  50% { transform: translate3d(-1%, 4%, 0) scale(1.06); }
  75% { transform: translate3d(2%, -2%, 0) scale(1.07); }
  100% { transform: translate3d(-3%, 2%, 0) scale(1.05); }
}

.bz-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding: max(1rem, env(safe-area-inset-top)) 1.2rem 0;
  color: var(--bz-dim);
  font-size: 0.67rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.bz-exit {
  width: max-content;
  color: var(--bz-paper);
  text-decoration: none;
}

.bz-exit:hover { color: var(--bz-acid); }

.bz-signal { display: flex; align-items: center; gap: 0.55rem; }
.bz-signal-dot {
  width: 0.48rem;
  height: 0.48rem;
  border-radius: 50%;
  background: #545448;
  box-shadow: 0 0 0 transparent;
  transition: background 200ms ease, box-shadow 200ms ease;
}

.is-playing .bz-signal-dot {
  background: var(--bz-red);
  box-shadow: 0 0 0.9rem var(--bz-red);
  animation: bz-pulse 1.6s ease-in-out infinite;
}

@keyframes bz-pulse { 50% { opacity: 0.32; } }

.bz-header-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.bz-about-button {
  border: 0;
  border-bottom: 1px solid rgba(198, 255, 26, 0.45);
  padding: 0 0 0.15rem;
  background: transparent;
  color: var(--bz-acid);
  cursor: pointer;
  font-size: 0.67rem;
  letter-spacing: 0.14em;
}

.bz-about-button:hover { color: var(--bz-paper); border-color: var(--bz-paper); }

.bz-intro {
  position: absolute;
  z-index: 15;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 5rem 1.2rem 6rem;
  text-align: center;
  background: radial-gradient(circle at center, rgba(32, 38, 20, 0.14), rgba(5, 6, 4, 0.72) 62%, rgba(5, 6, 4, 0.94));
  transition: opacity 900ms ease, visibility 900ms step-end;
}

.is-entered .bz-intro {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.bz-eyebrow {
  margin: 0 0 1.25rem;
  color: var(--bz-acid);
  font-size: clamp(0.62rem, 1.3vw, 0.75rem);
  line-height: 1.5;
  letter-spacing: 0.27em;
  text-transform: uppercase;
}

.bz-intro h1 {
  margin: 0;
  color: var(--bz-paper);
  font-size: clamp(3.3rem, 13vw, 9.5rem);
  font-weight: 800;
  line-height: 0.78;
  letter-spacing: -0.095em;
  text-transform: uppercase;
  text-shadow: 0 0 4rem rgba(198, 255, 26, 0.12);
}

.bz-intro h1 span {
  display: block;
  margin: 0 0 0.24em 0.08em;
  color: var(--bz-red);
  font-size: 0.18em;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.8em;
}

.bz-deck {
  margin: 2rem 0 1.6rem;
  color: var(--bz-dim);
  font-size: clamp(0.72rem, 1.5vw, 0.88rem);
  line-height: 1.7;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.bz-enter {
  border: 1px solid var(--bz-paper);
  background: rgba(5, 6, 4, 0.74);
  color: var(--bz-paper);
  cursor: pointer;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.bz-enter {
  min-width: min(25rem, 88vw);
  padding: 1rem 1.4rem 0.8rem;
}

.bz-enter span { display: block; font-size: 0.84rem; }
.bz-enter small {
  display: block;
  margin-top: 0.38rem;
  color: var(--bz-dim);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
}

.bz-enter:hover {
  border-color: var(--bz-acid);
  background: var(--bz-acid);
  color: var(--bz-black);
}

.bz-warning,
.bz-noscript {
  margin: 1.1rem 0 0;
  color: rgba(228, 225, 206, 0.42);
  font-size: 0.58rem;
  line-height: 1.5;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.bz-noscript a { color: var(--bz-acid); }

.bz-quote {
  position: absolute;
  z-index: 12;
  top: 50%;
  left: clamp(24rem, 44vw, 50rem);
  width: min(48vw, 41rem);
  transform: translateY(-45%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 1.1s ease, transform 1.1s cubic-bezier(0.2, 0.75, 0.2, 1), visibility 1.1s step-end;
  pointer-events: none;
}

.bz-quote.is-visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(-50%);
  transition: opacity 1.1s ease, transform 1.1s cubic-bezier(0.2, 0.75, 0.2, 1), visibility 0s;
}

.bz-quote-index {
  margin: 0 0 1rem;
  color: var(--bz-red);
  font-size: 0.65rem;
  letter-spacing: 0.25em;
}

.bz-quote blockquote {
  margin: 0;
  max-width: 18ch;
  color: var(--bz-paper);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 5.7vw, 5.3rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.042em;
  text-wrap: balance;
  text-shadow: 0.04em 0 rgba(255, 59, 33, calc(0.12 + var(--bz-energy) * 0.25));
}

.bz-quote-source {
  max-width: 38rem;
  margin: 1.3rem 0 0;
  color: var(--bz-acid);
  font-size: clamp(0.62rem, 1.3vw, 0.76rem);
  line-height: 1.55;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.bz-live-wire {
  position: absolute;
  z-index: 11;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 700ms ease;
}

.is-entered .bz-live-wire { opacity: 1; }

.bz-markets {
  position: absolute;
  top: 3.25rem;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 1.4rem;
  min-height: 1.75rem;
  padding: 0.35rem 1.2rem;
  overflow: hidden;
  border-top: 1px solid rgba(228, 225, 206, 0.08);
  border-bottom: 1px solid rgba(228, 225, 206, 0.12);
  background: rgba(5, 6, 4, 0.38);
  color: rgba(228, 225, 206, 0.48);
  font-size: 0.58rem;
  letter-spacing: 0.09em;
  white-space: nowrap;
}

.bz-market::before {
  content: "▲";
  margin-right: 0.35rem;
  color: var(--bz-acid);
}

.bz-market.is-down::before {
  content: "▼";
  color: var(--bz-red);
}

.bz-live-label,
.bz-cutup {
  position: absolute;
  left: clamp(1.2rem, 5vw, 5rem);
  margin: 0;
  transition: opacity 500ms ease;
}

.bz-live-label {
  top: 45%;
  color: var(--bz-red);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
}

.bz-cutup {
  top: calc(45% + 1.45rem);
  width: min(34rem, 36vw);
  color: rgba(228, 225, 206, 0.6);
  font-size: clamp(0.7rem, 1.6vw, 1rem);
  line-height: 1.35;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.has-quote .bz-live-label,
.has-quote .bz-cutup { opacity: 0.12; }

.bz-phase {
  position: absolute;
  z-index: 10;
  top: 16%;
  right: clamp(1.2rem, 5vw, 5rem);
  width: min(22rem, 42vw);
  text-align: right;
  opacity: 0;
  transform: translateX(1rem);
  transition: opacity 700ms ease, transform 700ms ease;
  pointer-events: none;
}

.is-entered .bz-phase { opacity: 0.82; transform: none; }
.bz-phase p { margin: 0; }
.bz-phase p:first-child {
  color: var(--bz-red);
  font-size: 0.64rem;
  letter-spacing: 0.3em;
}
.bz-phase #bz-phase-line {
  margin-top: 0.75rem;
  color: var(--bz-dim);
  font-size: clamp(0.58rem, 1vw, 0.7rem);
  line-height: 1.55;
  letter-spacing: 0.15em;
}

.bz-bc-preset {
  margin-top: 0.65rem;
  overflow: hidden;
  color: rgba(74, 178, 255, 0.62);
  font-size: 0.52rem;
  line-height: 1.4;
  letter-spacing: 0.08em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bz-readout {
  position: absolute;
  z-index: 10;
  left: 1.2rem;
  right: 1.2rem;
  bottom: max(1rem, env(safe-area-inset-bottom));
  display: flex;
  justify-content: space-between;
  color: rgba(228, 225, 206, 0.44);
  font-size: 0.61rem;
  letter-spacing: 0.15em;
  opacity: 0;
  pointer-events: none;
  transition: opacity 500ms ease;
}
.is-entered .bz-readout { opacity: 1; }

.bz-context button {
  border: 0;
  background: transparent;
  color: var(--bz-paper);
  cursor: pointer;
  font-size: 0.62rem;
  letter-spacing: 0.11em;
  white-space: nowrap;
}
.bz-context button:hover { color: var(--bz-acid); }

.bz-context {
  position: absolute;
  z-index: 50;
  inset: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  background: rgba(5, 6, 4, 0.96);
  backdrop-filter: blur(18px);
}

.bz-context-inner {
  position: relative;
  width: min(48rem, 100%);
  margin: 0 auto;
  padding: max(5.5rem, calc(env(safe-area-inset-top) + 4rem)) 1.4rem 8rem;
}

.bz-context-close {
  position: fixed;
  z-index: 2;
  top: max(1.2rem, env(safe-area-inset-top));
  right: 1.4rem;
  font-size: 1.8rem !important;
}

.bz-context h2 {
  max-width: 12ch;
  margin: 0 0 2rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 8vw, 5.8rem);
  font-weight: 400;
  line-height: 0.88;
  letter-spacing: -0.055em;
}

.bz-context h3 {
  margin: 3.5rem 0 1.4rem;
  color: var(--bz-acid);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.bz-context p,
.bz-sources {
  color: rgba(228, 225, 206, 0.76);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.04rem, 2vw, 1.25rem);
  line-height: 1.65;
}

.bz-context-note {
  margin: 2rem 0;
  padding-left: 1rem;
  border-left: 1px solid var(--bz-red);
  color: var(--bz-dim) !important;
  font-family: inherit !important;
  font-size: 0.7rem !important;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.bz-sources { margin: 0; padding-left: 1.5rem; }
.bz-sources li { margin-bottom: 1rem; padding-left: 0.4rem; }
.bz-sources li::marker { color: var(--bz-red); font-family: monospace; }
.bz-context-credit { margin-top: 3rem; color: var(--bz-dim) !important; font-family: inherit !important; font-size: 0.72rem !important; text-transform: uppercase; }
.bz-context a { color: var(--bz-acid); }

.bz-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.low-motion .bz-grain,
.low-motion .bz-signal-dot { animation: none; }
.low-motion.has-butterchurn .bz-butterchurn { opacity: 0.12; }
.low-motion .bz-quote,
.low-motion .bz-phase { transition-duration: 0s; }

@media (max-width: 900px) {
  .bz-header-title { display: none; }
  .bz-quote { left: 40vw; width: 56vw; }
  .bz-phase { top: 15%; width: 62vw; }
  .bz-markets { gap: 1rem; }
  .bz-cutup { width: 38vw; }
}

@media (max-width: 600px) {
  .bz-app { min-height: 28rem; }
  .bz-intro { padding-bottom: 7.5rem; }
  .bz-deck br { display: none; }
  .bz-quote { top: 49%; left: 1.1rem; width: calc(100vw - 2.2rem); }
  .bz-quote blockquote { max-width: 16ch; font-size: clamp(2.15rem, 10.5vw, 4rem); }
  .bz-phase { top: 16%; right: 1rem; width: 75vw; }
  .bz-markets { top: 2.9rem; padding-inline: 0.8rem; font-size: 0.52rem; }
  .bz-live-label { top: 45%; }
  .bz-cutup { top: calc(45% + 1.35rem); width: calc(100vw - 2.2rem); font-size: 0.64rem; }
  .bz-readout { bottom: max(0.7rem, env(safe-area-inset-bottom)); }
}

@media (prefers-reduced-motion: reduce) {
  .bz-grain,
  .bz-signal-dot { animation: none; }
  .bz-intro,
  .bz-quote,
  .bz-phase { transition-duration: 0.01ms; }
}