:root {
  --paper: #f2eddf;
  --paper-deep: #e7dfcc;
  --ink: #17211c;
  --ink-soft: #465047;
  --line: #b8ae98;
  --line-strong: #716a5c;
  --signal: #d85734;
  --signal-dark: #96381f;
  --teal: #006a61;
  --teal-pale: #d5e6df;
  --white: #fffdf7;
  --shadow: 0 24px 70px rgba(29, 35, 29, 0.14);
  --display: "Bodoni 72", "Baskerville", "Book Antiqua", Georgia, serif;
  --body: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  --mono: "Aptos Mono", "Cascadia Code", "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  min-width: 320px;
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 4%, rgba(216, 87, 52, 0.12), transparent 24rem),
    linear-gradient(135deg, var(--paper) 0%, #f7f2e6 47%, var(--paper-deep) 100%);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.5;
}

.paper-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  opacity: 0.33;
  background-image:
    linear-gradient(rgba(23, 33, 28, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 33, 28, 0.08) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, black, transparent 88%);
}

a {
  color: inherit;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
input,
select,
textarea {
  border-radius: 0;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--signal);
  outline-offset: 3px;
}

.masthead {
  width: min(1440px, calc(100% - 48px));
  min-height: 84px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line-strong);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  box-shadow: 5px 5px 0 var(--signal);
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  font-family: var(--display);
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.brand small {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.environment-mark {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-dot {
  width: 9px;
  height: 9px;
  background: var(--signal);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(217, 79, 48, 0.13);
}

.environment-mark[data-state="ready"] .status-dot {
  background: var(--teal);
  box-shadow: 0 0 0 5px rgba(0, 106, 97, 0.13);
}

main {
  width: min(1440px, calc(100% - 48px));
  margin: 0 auto;
}

.auth-layout {
  min-height: calc(100vh - 85px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(340px, 0.75fr);
  align-items: center;
  gap: clamp(48px, 8vw, 140px);
  padding: 72px 5vw 84px;
}

.auth-statement {
  position: relative;
  max-width: 780px;
  animation: reveal-up 600ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
}

.auth-statement::before {
  content: "";
  position: absolute;
  width: 94px;
  height: 7px;
  top: -26px;
  left: 0;
  background: var(--signal);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--signal-dark);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.05;
}

h1,
h2 {
  font-family: var(--display);
  font-weight: 600;
}

.auth-statement h1 {
  max-width: 780px;
  margin-bottom: 28px;
  font-size: clamp(3.7rem, 7.5vw, 7.7rem);
  letter-spacing: -0.065em;
}

.lede {
  max-width: 650px;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(1.04rem, 1.7vw, 1.35rem);
}

.control-strip {
  max-width: 680px;
  margin: 48px 0 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.control-strip div {
  padding: 16px 18px 18px 0;
}

.control-strip div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.control-strip dt {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.control-strip dd {
  margin: 4px 0 0;
  font-weight: 700;
}

.auth-card {
  position: relative;
  padding: clamp(30px, 4vw, 54px);
  background: var(--ink);
  color: var(--white);
  box-shadow: 14px 14px 0 var(--signal), var(--shadow);
  animation: reveal-up 600ms 120ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
}

.auth-card .eyebrow {
  color: #f29a79;
}

.auth-card h2 {
  margin-bottom: 34px;
  font-size: clamp(2.1rem, 4vw, 3.2rem);
}

.folio {
  position: absolute;
  top: 16px;
  right: 18px;
  color: #aeb9b2;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

label {
  display: block;
  margin: 17px 0 7px;
  font-size: 0.82rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 47px;
  padding: 10px 12px;
  border: 1px solid var(--line-strong);
  background: var(--white);
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.auth-card input {
  border-color: #687269;
  background: #fbf7eb;
}

.button {
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background-color 140ms ease;
}

.button:hover:not(:disabled) {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--ink);
}

.button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.button-primary {
  border-color: var(--signal);
  background: var(--signal);
  color: var(--white);
}

.button-primary:hover:not(:disabled) {
  box-shadow: 4px 4px 0 #6f2818;
}

.auth-card .button-primary {
  width: 100%;
  margin-top: 26px;
}

.button-secondary {
  border-color: var(--teal);
  background: var(--teal);
  color: var(--white);
}

.button-quiet {
  border-color: currentColor;
}

.auth-card .button-quiet {
  width: 100%;
  margin-top: 10px;
  color: var(--white);
}

.form-note {
  margin: 18px 0 0;
  color: #bdc6c0;
  font-size: 0.78rem;
}

.status-line {
  min-height: 24px;
  margin: 18px 0 0;
  color: #ffd7c6;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.workspace {
  padding: 52px 0 72px;
  animation: reveal-up 500ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
}

.workspace-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
}

.workspace-header h1 {
  margin-bottom: 0;
  font-size: clamp(3rem, 6vw, 6.3rem);
  letter-spacing: -0.055em;
}

.session-block {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
  text-align: right;
}

.mono,
code {
  font-family: var(--mono);
}

.role-list {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.role-list span {
  padding: 3px 7px;
  border: 1px solid var(--line-strong);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.phase-rail {
  margin: 40px 0 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line-strong);
  border-bottom: 1px solid var(--line-strong);
}

.phase-rail span {
  padding: 14px 18px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.phase-rail span + span {
  border-left: 1px solid var(--line);
}

.phase-rail b {
  margin-right: 8px;
  color: var(--signal);
}

.workspace-status {
  min-height: 30px;
  margin: 20px 0;
  padding-left: 13px;
  border-left: 5px solid var(--teal);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.workspace-status[data-kind="error"] {
  border-left-color: var(--signal);
  color: var(--signal-dark);
}

.workspace-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.ledger-panel {
  padding: clamp(24px, 3vw, 42px);
  border: 1px solid var(--line-strong);
  background: rgba(255, 253, 247, 0.72);
  box-shadow: 8px 8px 0 rgba(23, 33, 28, 0.08);
}

.span-two {
  grid-column: 1 / -1;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 14px;
}

.panel-heading h2 {
  margin: 0;
  font-size: clamp(2rem, 3.3vw, 3.5rem);
  letter-spacing: -0.035em;
}

.panel-intro {
  max-width: 780px;
  color: var(--ink-soft);
}

.control-tag {
  flex: 0 0 auto;
  padding: 7px 9px;
  border: 1px solid var(--teal);
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.control-tag-dark {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.source-table {
  margin-top: 28px;
  border-top: 1px solid var(--line-strong);
}

.source-row {
  display: grid;
  grid-template-columns: 42px minmax(190px, 1.2fr) minmax(190px, 0.85fr) auto minmax(190px, 0.9fr);
  align-items: center;
  gap: 18px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.source-index,
.step-number {
  color: var(--signal);
  font-family: var(--display);
  font-size: 2rem;
  line-height: 1;
}

.source-row h3,
.handoff h3,
.operator-step h3 {
  margin-bottom: 4px;
  font-family: var(--display);
  font-size: 1.35rem;
}

.source-row p,
.handoff p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.file-control {
  margin: 0;
  padding: 10px 12px;
  border: 1px dashed var(--line-strong);
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-align: center;
  text-transform: uppercase;
}

.file-control:hover {
  background: var(--teal-pale);
}

.file-control input {
  position: absolute;
  width: 1px;
  height: 1px;
  min-height: 0;
  padding: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  overflow: hidden;
  white-space: nowrap;
}

.source-state {
  min-width: 0;
}

.source-status,
.source-id {
  display: block;
}

.source-status {
  font-size: 0.76rem;
  font-weight: 700;
}

.source-id,
#engagement-id,
#queued-run-id {
  margin-top: 4px;
  color: var(--ink-soft);
  font-size: 0.66rem;
  overflow-wrap: anywhere;
}

.handoff {
  display: grid;
  grid-template-columns: minmax(180px, 0.8fr) minmax(280px, 1.4fr) auto;
  align-items: center;
  gap: 20px;
  margin-top: 28px;
  padding: 20px;
  background: var(--teal-pale);
}

.handoff textarea {
  min-height: 116px;
  font-family: var(--mono);
  font-size: 0.7rem;
}

.operator-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: 28px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}

.operator-step {
  padding: clamp(22px, 3vw, 38px);
  background: var(--white);
}

.operator-step code {
  display: block;
}

.operator-step .button {
  margin-top: 20px;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0;
}

.packet-view {
  max-height: 450px;
  margin: 20px 0;
  padding: 18px;
  overflow: auto;
  border: 1px solid var(--line-strong);
  background: var(--ink);
  color: #e7eadf;
  font-family: var(--mono);
  font-size: 0.72rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

.attestations {
  margin: 18px 0;
  padding: 15px 18px 18px;
  border: 1px solid var(--line);
}

.attestations legend {
  padding: 0 7px;
  font-family: var(--mono);
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.attestations label {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  margin: 10px 0 0;
}

.attestations input {
  width: 18px;
  min-height: 18px;
  margin: 2px 0 0;
}

.run-state {
  min-height: 58px;
  margin-top: 20px;
  padding: 14px;
  border-left: 5px solid var(--teal);
  background: var(--teal-pale);
  font-family: var(--mono);
  font-size: 0.74rem;
}

.workspace-footer {
  margin-top: 34px;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 30px;
  border-top: 1px solid var(--line-strong);
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.workspace-footer p {
  max-width: 640px;
  margin: 0;
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .auth-layout {
    grid-template-columns: 1fr;
    padding-right: 3vw;
    padding-left: 3vw;
  }

  .auth-statement {
    padding-top: 20px;
  }

  .auth-card {
    width: min(600px, 100%);
  }

  .source-row {
    grid-template-columns: 38px 1fr 1fr;
  }

  .source-row .source-state {
    grid-column: 2 / -1;
  }

  .source-row .button {
    justify-self: stretch;
  }

  .handoff {
    grid-template-columns: 1fr;
  }

  .handoff .button {
    justify-self: start;
  }
}

@media (max-width: 760px) {
  .masthead,
  main {
    width: min(100% - 28px, 1440px);
  }

  .environment-mark {
    display: none;
  }

  .auth-layout {
    min-height: auto;
    gap: 48px;
    padding: 64px 0 76px;
  }

  .auth-statement h1 {
    font-size: clamp(3.25rem, 17vw, 5.3rem);
  }

  .control-strip {
    grid-template-columns: 1fr;
  }

  .control-strip div + div {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .auth-card {
    padding: 30px 22px;
    box-shadow: 8px 8px 0 var(--signal);
  }

  .workspace {
    padding-top: 36px;
  }

  .workspace-header,
  .session-block,
  .workspace-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .session-block {
    text-align: left;
  }

  .role-list {
    justify-content: flex-start;
  }

  .phase-rail {
    grid-template-columns: 1fr 1fr;
  }

  .phase-rail span:nth-child(3) {
    border-left: 0;
  }

  .phase-rail span:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .workspace-grid,
  .operator-grid {
    grid-template-columns: 1fr;
  }

  .ledger-panel {
    grid-column: 1;
    padding: 24px 18px;
  }

  .panel-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .source-row {
    grid-template-columns: 34px 1fr;
    gap: 13px;
  }

  .source-row .file-control,
  .source-row .button,
  .source-row .source-state {
    grid-column: 2;
    width: 100%;
  }

  .button-row .button {
    width: 100%;
  }
}

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