:root {
  --paper: #f4efe6;
  --paper-strong: #fbf7ef;
  --ink: #10223a;
  --muted: #5f6d7b;
  --line: rgba(16, 34, 58, 0.12);
  --signal: #1168d8;
  --signal-soft: rgba(17, 104, 216, 0.12);
  --ember: #dd5b2e;
  --ember-soft: rgba(221, 91, 46, 0.14);
  --fern: #1f8a57;
  --fern-soft: rgba(31, 138, 87, 0.14);
  --gold: #9c7a1d;
  --gold-soft: rgba(156, 122, 29, 0.14);
  --slate: #607184;
  --slate-soft: rgba(96, 113, 132, 0.12);
  --shadow: 0 22px 60px rgba(16, 34, 58, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, rgba(17, 104, 216, 0.14), transparent 30rem),
    radial-gradient(circle at bottom right, rgba(221, 91, 46, 0.16), transparent 28rem),
    linear-gradient(180deg, #fffdf8 0%, var(--paper) 100%);
  color: var(--ink);
  font-family: "Space Grotesk", "Trebuchet MS", sans-serif;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 28rem;
  height: 28rem;
  filter: blur(80px);
  opacity: 0.4;
  pointer-events: none;
}

.ambient-a {
  top: -8rem;
  right: -6rem;
  background: rgba(17, 104, 216, 0.34);
}

.ambient-b {
  bottom: -10rem;
  left: -8rem;
  background: rgba(221, 91, 46, 0.3);
}

.shell {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  align-items: flex-start;
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--ember);
  font: 500 0.78rem/1.2 "IBM Plex Mono", monospace;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero h1,
.monitor-head h2,
.panel-head h2 {
  margin: 0;
  letter-spacing: -0.04em;
}

.hero h1 {
  font-size: clamp(2.3rem, 4vw, 4.8rem);
  line-height: 0.94;
  max-width: 10ch;
}

.hero-text,
.panel-head p,
.role-card p,
.flash {
  color: var(--muted);
  line-height: 1.55;
}

.hero-chip {
  border: 1px solid rgba(16, 34, 58, 0.08);
  background: rgba(255, 255, 255, 0.68);
  border-radius: 999px;
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
  font: 500 0.9rem/1 "IBM Plex Mono", monospace;
  backdrop-filter: blur(16px);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
  gap: 1rem;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 1.6rem;
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.control-panel,
.monitor-panel {
  padding: 1.25rem;
}

.stack {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.45rem;
}

.field span,
.toggle span,
.stat-label,
.role-label {
  font: 500 0.77rem/1.2 "IBM Plex Mono", monospace;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(16, 34, 58, 0.14);
  border-radius: 1rem;
  background: rgba(255, 252, 246, 0.96);
  color: var(--ink);
  padding: 0.9rem 1rem;
  transition: border-color 160ms ease, transform 160ms ease;
}

input:focus,
textarea:focus {
  border-color: var(--signal);
  outline: none;
  transform: translateY(-1px);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

.field-grid,
.button-row,
.role-grid,
.stats-grid {
  display: grid;
  gap: 0.8rem;
}

.field-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.button-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.button {
  appearance: none;
  border: 1px solid rgba(16, 34, 58, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink);
  cursor: pointer;
  padding: 0.85rem 1rem;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(16, 34, 58, 0.12);
}

.button-primary {
  background: var(--ink);
  color: var(--paper-strong);
}

.button-accent {
  background: var(--ember);
  border-color: transparent;
  color: white;
}

.toggle {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.toggle input {
  width: 1.1rem;
  height: 1.1rem;
  padding: 0;
}

.role-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.role-card {
  border-radius: 1.25rem;
  padding: 1rem;
  min-height: 12rem;
}

.role-card h3 {
  margin: 0.35rem 0 0.6rem;
  font-size: 1.4rem;
}

.role-a {
  background: linear-gradient(160deg, rgba(17, 104, 216, 0.18), rgba(17, 104, 216, 0.04));
}

.role-b {
  background: linear-gradient(160deg, rgba(221, 91, 46, 0.2), rgba(221, 91, 46, 0.05));
}

.role-local-a {
  background: linear-gradient(160deg, rgba(31, 138, 87, 0.2), rgba(31, 138, 87, 0.05));
}

.role-local-b {
  background: linear-gradient(160deg, rgba(156, 122, 29, 0.18), rgba(156, 122, 29, 0.04));
}

.monitor-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
}

.stats-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 1rem;
}

.stat-card {
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.64);
  padding: 0.95rem 1rem;
}

.stat-card strong {
  display: block;
  margin-top: 0.55rem;
  font-size: 1.1rem;
}

.progress-rail {
  height: 0.7rem;
  border-radius: 999px;
  margin-top: 1rem;
  background: rgba(16, 34, 58, 0.08);
  overflow: hidden;
}

.progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--signal), var(--ember));
  transition: width 260ms ease;
}

.flash {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.66);
  border: 1px solid var(--line);
}

.flash.info {
  background: var(--signal-soft);
  color: var(--ink);
}

.flash.error {
  background: var(--ember-soft);
  color: #5b2413;
}

.transcript {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.8rem;
  max-height: 62vh;
  overflow: auto;
}

.message {
  border-radius: 1.25rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  animation: rise 220ms ease;
}

.message-a {
  border-left: 6px solid var(--signal);
}

.message-b {
  border-left: 6px solid var(--ember);
}

.message-local {
  border-left: 6px solid var(--fern);
  background: linear-gradient(180deg, rgba(31, 138, 87, 0.08), rgba(255, 255, 255, 0.9));
}

.message-tool {
  border-left: 6px solid var(--slate);
  background: linear-gradient(180deg, rgba(96, 113, 132, 0.08), rgba(255, 255, 255, 0.88));
}

.message-system {
  border-left: 6px solid var(--gold);
  background: linear-gradient(180deg, rgba(156, 122, 29, 0.1), rgba(255, 255, 255, 0.9));
}

.message-head {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.55rem;
}

.message-role {
  font-weight: 700;
}

.message-meta {
  color: var(--muted);
  font: 400 0.8rem/1.2 "IBM Plex Mono", monospace;
}

.message-text {
  margin: 0;
  white-space: pre-wrap;
  line-height: 1.62;
}

.message-tool .message-text {
  font: 400 0.94rem/1.65 "IBM Plex Mono", monospace;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 1rem 0.85rem 2rem;
  }

  .hero,
  .monitor-head {
    flex-direction: column;
  }

  .field-grid,
  .button-row,
  .role-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .transcript {
    max-height: none;
  }
}