:root {
  --bg:        #07080a;
  --panel:     #0b0d10;
  --panel-2:   #0f1217;
  --panel-3:   #151a22;
  --line:      #191d24;
  --line-2:    #2a313b;
  --text:      #d7dce3;
  --text-2:    #99a2ae;
  --muted:     #626b78;
  --sig:       #f5a84b;
  --sig-2:     #ffc27a;
  --sig-deep:  #6f4514;
  --sig-wash:  #171513;
  --ok:        #4fd18b;
  --sig-live:  #38f28e;
  --warn:      #e0b341;
  --danger:    #ff5f52;
  --r:         3px;
  --plate-x:   1.25rem;
  --font-ui:   system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --ease:      cubic-bezier(.2, .7, .3, 1);
  --ease-signal: cubic-bezier(.4, 0, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .022) 1px, transparent 1px),
    linear-gradient(90deg, transparent 0, rgba(245, 168, 75, .05) 50%, transparent 100%);
  background-size: 32px 32px, 32px 32px, 100% 100%;
}

::selection {
  background: var(--sig);
  color: #07080a;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  background: var(--sig);
  color: #07080a;
  padding: .6rem 1rem;
  font: 600 .8rem/1 var(--font-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.skip-link:focus {
  left: 0;
}

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

/* ===================== MASTHEAD ===================== */

.masthead {
  position: relative;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(255, 255, 255, .014), transparent);
}

.masthead::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, var(--sig), var(--sig-deep) 22%, transparent 55%);
}

.masthead-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: .85rem clamp(1rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem 1.5rem;
  flex-wrap: wrap;
}

.lockup {
  display: flex;
  align-items: baseline;
  gap: .7rem;
  text-decoration: none;
  color: inherit;
}

.lockup-mark {
  font: 700 .95rem/1 var(--font-mono);
  letter-spacing: .1em;
  color: var(--text);
}

.lockup-tick { color: var(--sig); }

.lockup-name {
  font: 500 .7rem/1 var(--font-mono);
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--muted);
}

.readout {
  display: flex;
  margin: 0;
  padding: 0;
  list-style: none;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.readout-cell {
  display: flex;
  align-items: baseline;
  gap: .45rem;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.readout-key { color: var(--muted); }

.readout-key::after {
  content: "/";
  margin-left: .45rem;
  color: var(--line-2);
}

.readout-val { color: var(--sig); }

/* ===================== HERO ===================== */

.hero {
  position: relative;
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(3.5rem, 9vw, 7rem) clamp(1rem, 5vw, 3rem) clamp(3rem, 7vw, 5rem);
  text-align: center;
  scroll-margin-top: 2rem;
}

.hero-eyebrow {
  margin: 0 0 clamp(1.5rem, 3vw, 2.2rem);
  font: 500 .7rem/1 var(--font-mono);
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--muted);
  animation: rise .7s var(--ease) both;
}

.wordmark {
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2rem, 8.4vw, 6.2rem);
  letter-spacing: -.03em;
  line-height: 1;
  color: var(--text);
  animation: rise .7s .08s var(--ease) both;
}

@supports (-webkit-text-stroke: 1px black) {
  .wordmark {
    -webkit-text-stroke: 1px var(--text-2);
    color: transparent;
  }
}

.wordmark-sup {
  font-size: .4em;
  vertical-align: .72em;
  margin: 0 .04em;
  color: var(--sig);
  -webkit-text-stroke-width: 0;
}

.hero-sub {
  margin: clamp(1.2rem, 2.5vw, 1.8rem) 0 0;
  font: 500 clamp(.82rem, 1.5vw, 1rem)/1.4 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-2);
  animation: rise .7s .16s var(--ease) both;
}

.hero-sub .arrow {
  color: var(--sig);
  padding: 0 .35em;
}

.hero-claim {
  max-width: 56ch;
  margin: clamp(1.4rem, 3vw, 2rem) auto 0;
  color: var(--muted);
  font-size: .98rem;
  line-height: 1.75;
  animation: rise .7s .24s var(--ease) both;
}

.hero-claim strong { color: var(--text); font-weight: 600; }

.hero-actions {
  display: flex;
  gap: .75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: clamp(1.8rem, 4vw, 2.6rem);
  animation: rise .7s .32s var(--ease) both;
}

/* ===================== CHAIN ===================== */

.chain {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin: clamp(2.4rem, 5vw, 3.6rem) 0 0;
  padding: 0;
  list-style: none;
  text-align: left;
  animation: rise .7s .4s var(--ease) both;
}

.chain-node {
  position: relative;
  padding: 2.5rem .25rem 0 0;
}

.chain-node::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--line-2);
}

.chain-node:first-child::before { left: 9px; }

.chain-node:last-child::before { right: calc(100% - 9px); }

.chain-node::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 1px solid var(--line-2);
  background: var(--bg);
}

.chain-node[data-stage="human"]::after {
  border-color: var(--sig);
  background: var(--sig);
}

.chain-pulse {
  position: absolute;
  top: 6px;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--sig) 50%, transparent);
  animation: traverse 3.4s linear infinite;
}

.chain-node:nth-child(2) .chain-pulse { animation-delay: .3s; }
.chain-node:nth-child(3) .chain-pulse { animation-delay: .6s; }
.chain-node:nth-child(4) .chain-pulse { animation-delay: .9s; }

.chain-index {
  display: block;
  font: 500 .66rem/1 var(--font-mono);
  letter-spacing: .22em;
  color: var(--muted);
}

.chain-name {
  display: block;
  margin-top: .5rem;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(.8rem, 1.4vw, .95rem);
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-2);
}

.chain-role {
  display: block;
  margin-top: .35rem;
  font: 400 .72rem/1.5 var(--font-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
}

.chain-node[data-stage="human"] .chain-name,
.chain-node[data-stage="human"] .chain-index { color: var(--sig); }

/* ===================== PAGE HEADER / CONTRACT ===================== */

.page-header {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  scroll-margin-top: 2rem;
}

.page-header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.75rem clamp(1rem, 4vw, 2.5rem) 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-bottom: 1rem;
}

.brand-mark {
  font: 700 .85rem/1 var(--font-mono);
  letter-spacing: .14em;
  color: var(--sig);
  border: 1px solid var(--sig-deep);
  background: rgba(245, 168, 75, .05);
  padding: .4rem .55rem;
  border-radius: var(--r);
}

.brand-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .01em;
}

.tagline {
  max-width: 74ch;
  margin: 0;
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.7;
}

.tagline strong { color: var(--text); font-weight: 600; }
.tagline em { color: var(--text-2); font-style: italic; }

.contract {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  margin: 1.4rem 0 0;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
}

.contract > div {
  background: var(--panel-2);
  padding: .7rem .85rem;
}

.contract dt {
  font: 500 .64rem/1 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.contract dd {
  margin: .45rem 0 0;
  font: 400 .84rem/1.3 var(--font-mono);
  color: var(--text);
}

/* ===================== LAYOUT / FORM ===================== */

.layout {
  max-width: 1080px;
  margin: 0 auto;
  padding: 2.5rem clamp(1rem, 4vw, 2.5rem) 5rem;
  outline: none;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.form-warning,
.notice {
  background: rgba(224, 179, 65, .05);
  border: 1px solid rgba(224, 179, 65, .26);
  border-left: 2px solid var(--warn);
  color: #e8d49a;
  padding: .85rem 1rem;
  border-radius: var(--r);
  font-size: .86rem;
  line-height: 1.65;
}

.form-warning {
  position: relative;
  margin: 0 0 .3rem;
  padding-top: 2.1rem;
}

.form-warning::before {
  content: "SECRET POLICY / NONE ACCEPTED";
  position: absolute;
  top: .7rem;
  left: 1rem;
  font: 600 .62rem/1 var(--font-mono);
  letter-spacing: .2em;
  color: var(--warn);
}

.form-warning strong,
.notice strong { color: #fff3d6; font-weight: 600; }

.notice {
  background: rgba(245, 168, 75, .04);
  border-color: var(--line);
  border-left-color: var(--sig);
  color: var(--text-2);
  margin: 0 0 1.1rem;
  padding: .7rem .9rem;
  font-size: .84rem;
}

.notice em { color: var(--sig); font-style: normal; }

.notice.warn {
  background: rgba(224, 179, 65, .05);
  border-left-color: var(--warn);
  color: #e8d49a;
}

/* ===================== INCIDENT ID BANNER ===================== */

.banner {
  position: relative;
  display: flex;
  align-items: center;
  gap: .85rem;
  flex-wrap: wrap;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: .8rem 1rem;
}

.banner::before,
.banner::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 7px;
  border: 1px solid var(--line-2);
  pointer-events: none;
}

.banner::before {
  top: 5px;
  left: 5px;
  border-right: 0;
  border-bottom: 0;
}

.banner::after {
  right: 5px;
  bottom: 5px;
  border-left: 0;
  border-top: 0;
}

.rec {
  width: 7px;
  height: 7px;
  background: var(--sig);
  box-shadow: 0 0 8px rgba(245, 168, 75, .7);
  animation: blink 1.9s var(--ease) infinite;
}

.banner-label {
  font: 500 .68rem/1 var(--font-mono);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
}

.banner #incident_id {
  flex: 1;
  min-width: 210px;
  color: var(--sig);
  border-style: dashed;
  border-color: var(--sig-deep);
  background: rgba(245, 168, 75, .04);
}

/* ===================== SECTIONS ===================== */

.section {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 0 var(--plate-x) 1.35rem;
  scroll-margin-top: 1.5rem;
}

.section::after {
  content: "";
  position: absolute;
  right: 7px;
  bottom: 7px;
  width: 8px;
  height: 8px;
  border-left: 1px solid var(--line-2);
  border-top: 1px solid var(--line-2);
  pointer-events: none;
}

fieldset { border: none; margin: 0; padding: 0; }

.section > legend {
  display: flex;
  align-items: center;
  gap: .55rem;
  margin: 0 calc(-1 * var(--plate-x) - 1px) 1rem;
  min-width: calc(100% + 2 * var(--plate-x) + 2px);
  padding: 1.1rem calc(var(--plate-x) + 1px) .85rem;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .74rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-2);
}

.section > legend::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--line-2);
}

.report-section {
  border-color: var(--sig-deep);
  background: linear-gradient(180deg, var(--sig-wash), var(--panel) 220px);
}

.report-section > legend {
  background: var(--sig-wash);
  color: var(--sig);
}

.report-section > legend::before {
  background: var(--sig);
  box-shadow: 0 0 8px rgba(245, 168, 75, .6);
}

.report-section::before,
.report-section::after { border-color: var(--sig-deep); }

/* ===================== FIELDS ===================== */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: .95rem 1.1rem;
}

.field.full { grid-column: 1 / -1; }

.field {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  min-width: 0;
}

label {
  font-family: var(--font-mono);
  font-size: .7rem;
  font-weight: 500;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--muted);
}

.req { color: var(--danger); font-weight: 700; }

input, select, textarea {
  width: 100%;
  min-width: 0;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: .55rem .7rem;
  font-family: var(--font-mono);
  font-size: .84rem;
  transition: border-color .15s var(--ease), box-shadow .15s var(--ease), background .15s var(--ease);
}

textarea {
  font-family: var(--font-ui);
  font-size: .9rem;
  line-height: 1.65;
  resize: vertical;
  min-height: 6rem;
}

select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%237d8794' stroke-width='1.3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .7rem center;
  background-size: 9px 6px;
  cursor: pointer;
}

select:hover {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23f5a84b' stroke-width='1.3'/%3E%3C/svg%3E");
}

input::placeholder, textarea::placeholder { color: #4d545e; }

input:hover, select:hover, textarea:hover { border-color: var(--line-2); }

input:focus, select:focus, textarea:focus {
  outline: none;
  background: var(--panel-3);
  border-color: var(--sig);
  box-shadow: inset 2px 0 0 var(--sig), 0 0 0 3px rgba(245, 168, 75, .13);
}

input[readonly] { cursor: default; }

input[type="date"], input[type="datetime-local"] { padding-right: .35rem; }

input[type="date"]::-webkit-calendar-picker-indicator,
input[type="datetime-local"]::-webkit-calendar-picker-indicator {
  filter: invert(.65) sepia(1) saturate(4) hue-rotate(-15deg);
  cursor: pointer;
  opacity: .7;
}

input[type="date"]::-webkit-calendar-picker-indicator:hover,
input[type="datetime-local"]::-webkit-calendar-picker-indicator:hover { opacity: 1; }

input:not(:placeholder-shown):invalid,
select:not(:placeholder-shown):invalid,
textarea:not(:placeholder-shown):invalid {
  border-color: var(--danger);
  box-shadow: inset 2px 0 0 var(--danger), 0 0 0 3px rgba(255, 95, 82, .12);
}

/* ===================== BUTTONS ===================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .62rem 1.1rem;
  border-radius: var(--r);
  border: 1px solid var(--line-2);
  background: var(--panel-2);
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: transform .08s var(--ease), background .15s var(--ease),
              border-color .15s var(--ease), color .15s var(--ease);
}

.btn:hover {
  background: var(--panel-3);
  border-color: var(--sig-deep);
  color: var(--sig-2);
}

.btn:active { transform: translateY(1px); }

.btn.primary {
  background: var(--sig);
  border-color: var(--sig);
  color: #07080a;
  font-weight: 700;
}

.btn.primary::after { content: "\2193"; }

.btn.primary:hover {
  background: var(--sig-2);
  border-color: var(--sig-2);
  color: #07080a;
}

.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text-2);
}

.btn.ghost:hover {
  background: rgba(245, 168, 75, .06);
  border-color: var(--sig-deep);
  color: var(--sig);
}

.btn.danger {
  color: var(--danger);
  border-color: rgba(255, 95, 82, .32);
  background: transparent;
}

.btn.danger:hover {
  background: rgba(255, 95, 82, .1);
  border-color: var(--danger);
  color: #ff8a80;
}

.btn-sm { padding: .45rem .7rem; font-size: .66rem; }

#add-timeline, #add-evidence { margin-top: .2rem; }

#timeline-container:empty::after,
#evidence-container:empty::after {
  content: "NO RECORDS";
  display: block;
  margin-bottom: .75rem;
  padding: 1.1rem .75rem;
  border: 1px dashed var(--line);
  border-radius: var(--r);
  font: 500 .66rem/1 var(--font-mono);
  letter-spacing: .22em;
  text-align: center;
  color: var(--muted);
}

/* ===================== ENTRIES ===================== */

.entry {
  position: relative;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-left: 2px solid var(--line-2);
  border-radius: var(--r);
  padding: .9rem 1rem 1rem;
  margin-bottom: .75rem;
  animation: rise .3s var(--ease) both;
}

.entry:hover { border-left-color: var(--sig-deep); }

.entry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .85rem;
  padding-bottom: .6rem;
  border-bottom: 1px dashed var(--line);
}

.entry-title {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sig);
}

.entry .grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }

/* ===================== EXPORT / HUMAN HANDOFF ===================== */

.export-bar {
  position: sticky;
  bottom: .6rem;
  z-index: 20;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem 2rem;
  flex-wrap: wrap;
  background: var(--panel-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r);
  padding: 1rem 1.15rem;
  box-shadow: 0 -1px 0 rgba(245, 168, 75, .12), 0 18px 40px rgba(0, 0, 0, .65);
}

.export-head { flex: 1 1 320px; min-width: 0; }

.export-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin: 0 0 .5rem;
  font: 600 .66rem/1 var(--font-mono);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sig);
}

.export-label::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--sig);
  box-shadow: 0 0 8px rgba(245, 168, 75, .6);
}

.export-note {
  margin: 0;
  color: var(--muted);
  font-size: .82rem;
  line-height: 1.6;
}

.export-actions {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
}

/* ===================== TOAST ===================== */

#toast {
  position: fixed;
  top: 1.1rem;
  left: 50%;
  z-index: 60;
  max-width: min(92vw, 560px);
  transform: translateX(-50%) translateY(-160%);
  background: var(--panel-3);
  color: var(--ok);
  border: 1px solid rgba(79, 209, 139, .4);
  border-left: 2px solid var(--ok);
  border-radius: var(--r);
  padding: .7rem 1.1rem;
  font: 600 .74rem/1.4 var(--font-mono);
  letter-spacing: .1em;
  text-transform: uppercase;
  box-shadow: 0 18px 40px rgba(0, 0, 0, .7);
  transition: transform .25s var(--ease);
}

#toast.show { transform: translateX(-50%) translateY(0); }

#toast.error {
  color: #ff8a80;
  border-color: rgba(255, 95, 82, .4);
  border-left-color: var(--danger);
}

/* ===================== FOOTER ===================== */

.page-footer {
  border-top: 1px solid var(--line);
  background: var(--panel);
}

.page-footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 1.6rem clamp(1rem, 4vw, 2.5rem) 2.2rem;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: .6rem 1.5rem;
  flex-wrap: wrap;
}

.footer-mark {
  margin: 0;
  font: 700 .82rem/1 var(--font-mono);
  letter-spacing: .06em;
  color: var(--text-2);
}

.footer-note {
  margin: 0;
  font: 400 .68rem/1.4 var(--font-mono);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ===================== LIVE INPUT SIGNAL ===================== */

.live-signal-layer {
  position: fixed;
  inset: 0;
  z-index: 3;
  overflow: hidden;
  pointer-events: none;
  perspective: 560px;
}

.live-node {
  position: absolute;
  left: 0;
  top: 0;
  width: 9px;
  height: 9px;
  margin: -4.5px 0 0 -4.5px;
  border-radius: 50%;
  background: var(--sig-live);
  animation: live-node 620ms var(--ease-signal) both;
}

.live-vector {
  position: absolute;
  left: 0;
  top: 0;
  width: 460px;
  height: 120px;
  margin: -60px 0 0 0;
  transform-origin: 0 50%;
}

.live-proj {
  position: absolute;
  inset: 0;
  transform-origin: 0 50%;
  background: linear-gradient(180deg, transparent, rgba(56, 242, 142, .05) 50%, transparent);
  -webkit-mask-image: linear-gradient(90deg, #000 0 8%, rgba(0, 0, 0, .45) 52%, transparent 88%);
  mask-image: linear-gradient(90deg, #000 0 8%, rgba(0, 0, 0, .45) 52%, transparent 88%);
  animation: live-proj 820ms var(--ease-signal) both;
}

.live-proj::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--sig-live), rgba(56, 242, 142, .18) 52%, transparent 86%);
}

.live-cell {
  position: absolute;
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 1px solid var(--sig-live);
  animation: live-cell 300ms var(--ease-signal) both;
}

@keyframes live-node {
  0%   { opacity: 0;   transform: scale(.45); }
  15%  { opacity: 1;   transform: scale(1); }
  70%  { opacity: 1;   transform: scale(1); }
  100% { opacity: 0;   transform: scale(.05); }
}

@keyframes live-proj {
  0%   { opacity: 0;   transform: scale(1); }
  12%  { opacity: 1;   transform: scale(1); }
  58%  { opacity: .85; transform: scale(1); }
  100% { opacity: 0;   transform: scale(.26); }
}

@keyframes live-cell {
  0%   { opacity: 0;    transform: translateX(34px); }
  30%  { opacity: .92; }
  100% { opacity: 0;    transform: translateX(0); }
}

/* ===================== MOTION ===================== */

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: none; }
}

@keyframes traverse {
  from { transform: translateX(0); }
  to   { transform: translateX(100%); }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: .25; }
}

/* ===================== RESPONSIVE ===================== */

@media (max-width: 860px) {
  .chain {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem 1.25rem;
  }
  .chain-node { padding-top: 1.75rem; }
  .chain-node::before,
  .chain-node:first-child::before,
  .chain-node:last-child::before { display: none; }
  .chain-node::after { top: 0; }
  .chain-pulse { display: none; }
}

@media (max-width: 620px) {
  .masthead-inner { padding-top: .7rem; padding-bottom: .7rem; }
  .readout { gap: 1rem; }
  .chain { grid-template-columns: minmax(0, 1fr); gap: 1.1rem; }
  .chain-node { padding-top: 0; padding-left: 1.4rem; }
  .chain-node::after { top: 4px; }
  .export-bar { bottom: .35rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
}

@media print {
  :root { --bg: #fff; --panel: #fff; --panel-2: #fff; --panel-3: #fff; --text: #000; --text-2: #222; --muted: #555; --line: #bbb; --line-2: #999; --sig: #000; }
  *, *::before, *::after { animation: none !important; }
  body { background: #fff; color: #000; }
  body::before,
  .masthead,
  .page-footer,
  .hero-actions,
  #toast,
  .live-signal-layer,
  .rec { display: none !important; }
  .hero { padding: 0 0 1.5rem; }
  .wordmark { -webkit-text-stroke: 0; color: #000; }
  .section, .banner, .entry, .export-bar {
    break-inside: avoid;
    box-shadow: none;
    position: static;
  }
  input, select, textarea { border-color: #999; background: #fff; color: #000; }
}