:root {
  --ou-blue: #060645;
  --ou-mid-blue: #2449c7;
  --ou-yellow: #fff488;
  --ou-cyan: #66eefa;
  --ou-green: #7df2c7;
  --ou-pink: #ff9df3;
  --ou-orange: #ff8f72;
  --ink: #060645;
  --muted: #4b4c65;
  --line: #d7d9e8;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(90deg, rgba(6, 6, 69, 0.055) 1px, transparent 1px),
    linear-gradient(rgba(6, 6, 69, 0.055) 1px, transparent 1px),
    #f6f7fb;
  background-size: 28px 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 12px 18px;
  border-bottom: 8px solid var(--ou-yellow);
  color: #fff;
  background: var(--ou-blue);
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.llama-badge {
  display: grid;
  justify-items: center;
  gap: 3px;
  padding: 5px;
  border: 2px solid var(--ou-yellow);
  color: var(--ou-blue);
  background: #fff;
}

.llama-badge img {
  width: 54px;
  height: 54px;
  object-fit: contain;
}

.llama-badge span,
.eyebrow {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 950;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.topbar h1,
.topbar p {
  margin: 0;
}

.topbar h1 {
  font-size: clamp(1.7rem, 3vw, 2.45rem);
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

nav a,
button,
.link-button {
  border: 2px solid currentColor;
  padding: 10px 12px;
  color: inherit;
  background: transparent;
  font: inherit;
  font-weight: 950;
  text-decoration: none;
  cursor: pointer;
}

button.primary {
  border-color: var(--ou-mid-blue);
  color: #fff;
  background: var(--ou-mid-blue);
}

button.secondary {
  border-color: #aeb4d4;
  color: var(--ink);
  background: #fff;
}

button:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

.workspace {
  width: 100%;
  padding: 18px;
}

.scenario-panel {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) minmax(420px, 0.8fr);
  gap: 18px;
  align-items: end;
  max-width: 1500px;
  margin: 0 auto 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-top: 8px solid var(--ou-cyan);
  background: #fff;
}

.scenario-panel h2,
.agent-title h2 {
  margin: 0;
}

.scenario-panel p {
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.voice-note {
  font-size: 0.9rem;
  font-weight: 800;
}

.scenario-controls {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto;
  gap: 10px;
  align-items: end;
}

label {
  display: grid;
  gap: 6px;
  font-size: 0.78rem;
  font-weight: 950;
  text-transform: uppercase;
}

select,
textarea {
  width: 100%;
  border: 2px solid var(--line);
  border-radius: 0;
  padding: 12px;
  color: var(--ink);
  background: #fff;
  font: inherit;
  font-weight: 700;
}

textarea {
  min-height: 180px;
  resize: vertical;
  line-height: 1.45;
}

select:focus,
textarea:focus,
button:focus-visible,
nav a:focus-visible {
  outline: 4px solid var(--ou-yellow);
}

.practice-board {
  display: grid;
  grid-template-columns: minmax(150px, 0.18fr) minmax(0, 1fr) minmax(150px, 0.18fr);
  grid-template-areas:
    "top top top"
    "left center right"
    "bottom bottom bottom";
  gap: 14px;
  max-width: 1700px;
  margin: 0 auto;
}

.band-top { grid-area: top; }
.band-left { grid-area: left; }
.band-right { grid-area: right; }
.band-bottom { grid-area: bottom; }
.practice-center { grid-area: center; }

.pillar-band {
  display: grid;
  gap: 12px;
  overflow: visible;
}

.band-top,
.band-bottom {
  grid-template-columns: repeat(4, minmax(170px, 1fr));
}

.pillar-card {
  position: relative;
  display: grid;
  gap: 8px;
  min-height: 136px;
  padding: 16px;
  border: 1px solid var(--line);
  border-top: 7px solid var(--ou-mid-blue);
  background: #fff;
  box-shadow: 0 12px 30px rgba(6, 6, 69, 0.08);
  --pillar-color: var(--ou-mid-blue);
  --pillar-bg: #eef3ff;
}

.pillar-card strong {
  font-size: 1.05rem;
}

.pillar-card span {
  color: var(--muted);
  font-weight: 800;
  line-height: 1.28;
}

.pillar-card em {
  position: absolute;
  z-index: 30;
  width: min(280px, 82vw);
  padding: 12px;
  border: 3px solid var(--pillar-color);
  border-top: 10px solid var(--pillar-color);
  color: var(--ink);
  background:
    linear-gradient(90deg, var(--pillar-bg) 0 9px, #fff 9px),
    #fff;
  box-shadow: 0 18px 42px rgba(6, 6, 69, 0.28);
  font-size: 0.92rem;
  font-style: normal;
  font-weight: 850;
  line-height: 1.32;
  opacity: 0;
  pointer-events: none;
  transition: opacity 140ms ease, transform 140ms ease;
}

.pillar-card em b {
  display: block;
  margin-bottom: 6px;
  width: fit-content;
  padding: 3px 7px;
  color: var(--ink);
  background: var(--ou-yellow);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.band-top .pillar-card em {
  left: 50%;
  top: calc(100% + 10px);
  transform: translate(-50%, -6px);
}

.band-right .pillar-card em {
  right: calc(100% + 10px);
  top: 50%;
  transform: translate(6px, -50%);
}

.band-bottom .pillar-card em {
  left: 50%;
  bottom: calc(100% + 10px);
  transform: translate(-50%, 6px);
}

.band-left .pillar-card em {
  left: calc(100% + 10px);
  top: 50%;
  transform: translate(-6px, -50%);
}

.pillar-card:hover,
.pillar-card:focus,
.pillar-card:focus-visible {
  z-index: 35;
  outline: 4px solid var(--ou-yellow);
}

.pillar-card:hover em,
.pillar-card:focus em,
.pillar-card:focus-visible em {
  opacity: 1;
}

.band-top .pillar-card:hover em,
.band-top .pillar-card:focus em,
.band-top .pillar-card:focus-visible em,
.band-bottom .pillar-card:hover em,
.band-bottom .pillar-card:focus em,
.band-bottom .pillar-card:focus-visible em {
  transform: translate(-50%, 0);
}

.band-right .pillar-card:hover em,
.band-right .pillar-card:focus em,
.band-right .pillar-card:focus-visible em,
.band-left .pillar-card:hover em,
.band-left .pillar-card:focus em,
.band-left .pillar-card:focus-visible em {
  transform: translate(0, -50%);
}

.pillar-card.active {
  border-color: var(--ou-blue);
  box-shadow: 0 0 0 5px var(--ou-yellow), 0 18px 42px rgba(6, 6, 69, 0.18);
  animation: pulsePillar 1200ms infinite;
}

.accent-blue { --pillar-color: var(--ou-mid-blue); --pillar-bg: #eef3ff; border-top-color: var(--ou-mid-blue); }
.accent-cyan { --pillar-color: var(--ou-cyan); --pillar-bg: #eaffff; border-top-color: var(--ou-cyan); }
.accent-yellow { --pillar-color: var(--ou-yellow); --pillar-bg: #fffce0; border-top-color: var(--ou-yellow); }
.accent-green { --pillar-color: var(--ou-green); --pillar-bg: #e9fff8; border-top-color: var(--ou-green); }
.accent-pink { --pillar-color: var(--ou-pink); --pillar-bg: #fff0ff; border-top-color: var(--ou-pink); }
.accent-orange { --pillar-color: var(--ou-orange); --pillar-bg: #fff1ee; border-top-color: var(--ou-orange); }

@keyframes pulsePillar {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.practice-center {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.72fr);
  gap: 14px;
}

.prompt-card,
.agent-panel {
  border: 1px solid var(--line);
  border-top: 8px solid var(--ou-mid-blue);
  background: #fff;
  box-shadow: 0 18px 52px rgba(6, 6, 69, 0.12);
}

.prompt-card {
  min-height: 640px;
  padding: clamp(22px, 4vw, 42px);
}

.prompt-kicker {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 950;
  text-transform: uppercase;
}

.prompt-card h2 {
  margin: 0;
  font-size: clamp(2.25rem, 5vw, 5rem);
  line-height: 1;
}

#scenarioText,
#stepBody {
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.5;
}

.choices {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.instruction-list {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding: 16px;
  border: 2px solid var(--ou-cyan);
  background: #f4fdff;
  color: var(--muted);
  line-height: 1.45;
}

.instruction-list strong {
  color: var(--ou-blue);
  font-size: 1.05rem;
}

.ai-conflict-box {
  display: grid;
  gap: 8px;
  margin-top: 18px;
  padding: 16px;
  border: 2px solid var(--ou-green);
  border-left: 8px solid var(--ou-mid-blue);
  background: #f4fff9;
  color: var(--muted);
  line-height: 1.45;
}

.ai-conflict-box strong {
  color: var(--ou-blue);
  font-size: 1.05rem;
}

.ai-conflict-box p {
  margin: 0;
  color: var(--ink);
  font-weight: 750;
}

.choice {
  display: grid;
  gap: 5px;
  width: 100%;
  border: 2px solid var(--line);
  padding: 14px;
  color: var(--ink);
  background: #fff;
  text-align: left;
}

.choice.selected {
  border-color: var(--ou-mid-blue);
  background: #eef3ff;
  box-shadow: inset 8px 0 0 var(--ou-mid-blue);
}

.choice span {
  color: var(--muted);
  font-weight: 700;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 18px;
}

.agent-panel {
  display: grid;
  grid-template-rows: auto minmax(260px, 52vh) auto auto;
  gap: 12px;
  padding: 18px;
  border-top-color: var(--ou-green);
  min-height: 0;
}

.agent-title {
  display: flex;
  gap: 12px;
  align-items: center;
}

.agent-title img {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border: 2px solid var(--ou-yellow);
  background: #fff;
}

.agent-messages {
  display: grid;
  align-content: start;
  gap: 10px;
  min-height: 260px;
  max-height: 52vh;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 12px;
  border: 1px solid var(--line);
  background: #f8faff;
}

.message {
  padding: 12px;
  border-left: 5px solid var(--ou-mid-blue);
  background: #fff;
  line-height: 1.45;
  white-space: pre-wrap;
}

.message.user {
  border-left-color: var(--ou-yellow);
}

.agent-chat {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: end;
  padding-top: 10px;
  border-top: 1px solid var(--line);
}

.agent-chat textarea {
  min-height: 88px;
  max-height: 150px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  max-width: min(520px, calc(100vw - 28px));
  padding: 12px 14px;
  color: #fff;
  background: var(--ou-blue);
  opacity: 0;
  transform: translate(-50%, 12px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.site-footer {
  margin: 18px auto 26px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
}

@media (max-width: 1100px) {
  .scenario-panel,
  .practice-center,
  .scenario-controls {
    grid-template-columns: 1fr;
  }

  .practice-board {
    grid-template-columns: 1fr;
    grid-template-areas:
      "top"
      "center"
      "left"
      "right"
      "bottom";
  }

  .band-top,
  .band-bottom,
  .band-left,
  .band-right {
    grid-template-columns: repeat(2, minmax(150px, 1fr));
  }

  .pillar-card em,
  .band-top .pillar-card em,
  .band-right .pillar-card em,
  .band-bottom .pillar-card em,
  .band-left .pillar-card em {
    left: 50%;
    right: auto;
    top: calc(100% + 10px);
    bottom: auto;
    transform: translate(-50%, -6px);
  }

  .pillar-card:hover em,
  .pillar-card:focus em,
  .pillar-card:focus-visible em,
  .band-top .pillar-card:hover em,
  .band-top .pillar-card:focus em,
  .band-top .pillar-card:focus-visible em,
  .band-right .pillar-card:hover em,
  .band-right .pillar-card:focus em,
  .band-right .pillar-card:focus-visible em,
  .band-bottom .pillar-card:hover em,
  .band-bottom .pillar-card:focus em,
  .band-bottom .pillar-card:focus-visible em,
  .band-left .pillar-card:hover em,
  .band-left .pillar-card:focus em,
  .band-left .pillar-card:focus-visible em {
    transform: translate(-50%, 0);
  }
}