:root {
  --paper: #FBF5EC;
  --cream: #F5ECDC;
  --cocoa: #3A2A1E;
  --cocoa-70: rgba(58, 42, 30, 0.70);
  --cocoa-50: rgba(58, 42, 30, 0.50);
  --cocoa-15: rgba(58, 42, 30, 0.15);
  --terracotta: #A9522F;
  --terracotta-100: #F4D9CC;
  --terracotta-700: #7A3A20;
  --avocado: #6B7A3A;
  --avocado-100: #DDE4C4;
  --avocado-700: #4A5525;
  --mustard: #D8A72E;
  --mustard-100: #F4E2B0;
  --mustard-700: #8A6412;
  --ring: rgba(169, 82, 47, 0.35);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--cocoa);
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px 32px;
}

.app__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.app__eyebrow {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--avocado-700);
  margin: 0 0 4px;
  font-weight: 600;
}

.app__title {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  margin: 0;
  letter-spacing: -0.01em;
}

.app__endpoint {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--cocoa-70);
}

.app__endpoint select {
  border: 1px solid var(--cocoa-15);
  background: #fff;
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--cocoa);
}

.app__live-config {
  margin-bottom: 16px;
}

.live-config {
  background: #fff;
  border: 1px solid var(--cocoa-15);
  border-radius: 16px;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.live-config__row {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 10px;
  align-items: center;
  font-size: 12px;
  color: var(--cocoa-70);
}

.live-config__row input {
  border: 1px solid var(--cocoa-15);
  background: #fff;
  border-radius: 10px;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--cocoa);
  font-family: inherit;
}

.live-config__hint {
  margin: 2px 0 0;
  font-size: 12px;
  color: var(--cocoa-50);
  line-height: 1.45;
}

.app__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 860px) {
  .app__grid { grid-template-columns: 1fr; }
}

.panel {
  background: #fff;
  border: 1px solid var(--cocoa-15);
  border-radius: 16px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  min-height: 420px;
}

.panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.panel__count {
  font-size: 12px;
  color: var(--cocoa-50);
  font-variant-numeric: tabular-nums;
}

.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
}
.pill--terracotta { background: var(--terracotta-100); color: var(--terracotta-700); border-color: #e6c2b0; }
.pill--avocado { background: var(--avocado-100); color: var(--avocado-700); border-color: #c9d4a5; }
.pill--mustard { background: var(--mustard-100); color: var(--mustard-700); border-color: #e6ce8e; }

/* Lesson */
.lesson {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.lesson__step {
  animation: fadeIn 220ms ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: none; }
}

.lesson__kicker {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cocoa-50);
  font-weight: 600;
  margin: 0 0 8px;
}

.lesson__heading {
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  font-size: 22px;
  margin: 0 0 10px;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.lesson__heading em {
  font-style: italic;
  color: var(--terracotta);
}

.lesson__body {
  margin: 0 0 18px;
  color: var(--cocoa-70);
}

.lesson__choices {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 8px;
}

.choice {
  text-align: left;
  background: var(--cream);
  border: 1px solid var(--cocoa-15);
  border-radius: 12px;
  padding: 12px 14px;
  font-size: 14px;
  color: var(--cocoa);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 150ms, background 150ms, transform 80ms;
}
.choice:hover { border-color: var(--terracotta); background: #fff; }
.choice:active { transform: translateY(1px); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border-radius: 10px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 80ms, background 150ms, border-color 150ms;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--terracotta); color: #fff; }
.btn--primary:hover { background: #8A4124; }
.btn--ghost { background: transparent; color: var(--cocoa-70); border-color: var(--cocoa-15); }
.btn--ghost:hover { color: var(--cocoa); border-color: var(--cocoa-50); }

.lesson__progress {
  display: flex;
  gap: 6px;
  margin-top: 18px;
  justify-content: center;
}

.progress-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--cocoa-15);
  transition: background 200ms;
}
.progress-dot[data-active="true"] { background: var(--terracotta); }

/* Feed */
.feed {
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 520px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feed__empty {
  color: var(--cocoa-50);
  font-size: 13px;
  text-align: center;
  padding: 48px 16px;
  border: 1px dashed var(--cocoa-15);
  border-radius: 12px;
}

.statement {
  border: 1px solid var(--cocoa-15);
  border-left-width: 3px;
  border-radius: 12px;
  background: #fff;
  font-size: 13px;
  animation: slideIn 240ms ease-out;
  overflow: hidden;
}

.statement--start { border-left-color: var(--mustard); }
.statement--answer { border-left-color: var(--cocoa-50); }
.statement--pass { border-left-color: var(--avocado); }
.statement--fail { border-left-color: var(--terracotta); }
.statement--complete { border-left-color: var(--cocoa); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(6px); }
  to { opacity: 1; transform: none; }
}

.statement__plain {
  display: flex;
  gap: 12px;
  padding: 12px 14px;
}

.statement__icon {
  font-size: 22px;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 1px;
}

.statement__main {
  flex: 1;
  min-width: 0;
}

.statement__headline {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 8px;
}

.statement__who {
  font-weight: 600;
  color: var(--cocoa);
  font-size: 13px;
}

.statement__action {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid transparent;
}

.statement__action--start { background: var(--mustard-100); color: var(--mustard-700); border-color: #e6ce8e; }
.statement__action--answer { background: var(--cream); color: var(--cocoa); border-color: var(--cocoa-15); }
.statement__action--pass { background: var(--avocado-100); color: var(--avocado-700); border-color: #c9d4a5; }
.statement__action--fail { background: var(--terracotta-100); color: var(--terracotta-700); border-color: #e6c2b0; }
.statement__action--complete { background: var(--cocoa); color: var(--cream); border-color: var(--cocoa); }

.statement__what {
  margin: 4px 0 0;
  color: var(--cocoa);
  line-height: 1.4;
}

.statement__detail {
  margin: 4px 0 0;
  color: var(--cocoa-70);
  font-size: 12px;
  line-height: 1.4;
}

.statement__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  gap: 8px;
}

.statement__ts {
  font-size: 10.5px;
  color: var(--cocoa-50);
  font-variant-numeric: tabular-nums;
}

.statement__toggle {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--cream);
  border: 1px solid var(--cocoa-15);
  border-radius: 999px;
  padding: 4px 10px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 600;
  color: var(--cocoa-70);
  cursor: pointer;
  transition: background 150ms, color 150ms, border-color 150ms;
}
.statement__toggle:hover {
  background: var(--cocoa);
  color: var(--cream);
  border-color: var(--cocoa);
}
.statement__toggle[aria-expanded="true"] {
  background: var(--cocoa);
  color: var(--cream);
  border-color: var(--cocoa);
}

.statement__raw {
  border-top: 1px solid var(--cocoa-15);
  background: #2E1F14;
  padding: 12px 14px;
}

.statement__raw[hidden] { display: none; }

.statement__raw-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.statement__raw-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(243, 228, 198, 0.55);
}

.statement__raw-verb {
  font-family: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  font-size: 10.5px;
  color: var(--mustard-100);
}

.statement__raw-json {
  margin: 0;
  font-family: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  font-size: 11.5px;
  color: rgba(243, 228, 198, 0.85);
  background: transparent;
  padding: 0;
  overflow-x: auto;
  white-space: pre;
  line-height: 1.5;
}

.statement__raw-json .k { color: #E6B85A; }
.statement__raw-json .s { color: #F4D9CC; }
.statement__raw-json .n { color: #DDE4C4; }

/* Dashboard */
.dashboard {
  margin-top: 18px;
  background: #fff;
  border: 1px solid var(--cocoa-15);
  border-radius: 16px;
  padding: 18px;
}

.dashboard__header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.dashboard__hint {
  margin: 0;
  color: var(--cocoa-50);
  font-size: 12px;
}

.dashboard__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

@media (max-width: 640px) {
  .dashboard__grid { grid-template-columns: repeat(2, 1fr); }
}

.metric {
  background: var(--cream);
  border-radius: 12px;
  padding: 14px;
  border: 1px solid var(--cocoa-15);
}

.metric__label {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cocoa-50);
  margin: 0 0 6px;
  font-weight: 600;
}

.metric__value {
  margin: 0;
  font-family: 'Fraunces', Georgia, serif;
  font-size: 26px;
  font-weight: 600;
  color: var(--cocoa);
  letter-spacing: -0.01em;
  font-variant-numeric: lining-nums tabular-nums;
}