@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&display=swap');

html {
  font-size: clamp(18px, 1.45vw, 44px);
}

:root {
  /* Tokyo Night palette */
  --bg-page:    #0d1017;
  --bg-panel:   #1a1b26;
  --bg-surface: #1e2030;

  --border-subtle:  rgba(255,255,255,0.07);
  --border-default: rgba(255,255,255,0.15);

  --color-success: #9ece6a;
  --color-error:   #f7768e;
  --color-amber:   #e0af68;
  --color-blue:    #7aa2f7;
  --color-purple:  #bb9af7;
  --color-cyan:    #7dcfff;

  --text-primary:   #c0caf5;
  --text-secondary: #a9b1d6;
  --text-muted:     #565f89;

  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', ui-monospace, monospace;
  --font-sans: var(--font-mono);

  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 0.35rem;
  --radius-md: 0.55rem;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body { height: 100%; overflow: hidden; }

body {
  background: #000000;
  color: var(--text-primary);
  font-family: var(--font-mono);
  display: flex;
  flex-direction: column;
  padding: 1rem 1.8rem 0.7rem;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 0.15rem; height: 0.15rem; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 4px; }

/* ─── HEADER ─── */
header.slide-header {
  flex-shrink: 0;
  margin-bottom: 0.5rem;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1.5rem;
}

.slide-title {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--text-primary);
}

.slide-underline {
  position: relative;
  display: inline-block;
  color: var(--color-blue);
}
.slide-underline::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0.05rem;
  width: 100%; height: 0.1rem;
  background: var(--color-blue);
  border-radius: 2px;
  opacity: 0.55;
}

.slide-subtitle {
  font-size: 0.52rem;
  color: var(--text-muted);
  font-weight: 400;
  margin-top: 0.15rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Toolbar */
.presenter-toolbar {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.22rem 0.4rem;
  background: rgba(30, 32, 48, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(255,255,255,0.03), 0 4px 16px rgba(0,0,0,0.4);
}

.select-wrapper { position: relative; }
.select-wrapper::after {
  content: '▾'; font-size: 0.42rem; color: var(--text-muted);
  position: absolute; right: 0.4rem; top: 50%; transform: translateY(-50%); pointer-events: none;
}

select {
  appearance: none;
  background: rgba(13, 16, 23, 0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid var(--border-subtle); color: var(--text-secondary);
  padding: 0.2rem 1.2rem 0.2rem 0.45rem;
  border-radius: 3px; font-family: var(--font-mono);
  font-size: 0.5rem; font-weight: 400; cursor: pointer; outline: none;
  transition: border-color 0.2s, background-color 0.2s;
}
select:focus {
  border-color: rgba(122,162,247,0.45);
  background: rgba(13, 16, 23, 0.55);
}

.btn {
  display: inline-flex; align-items: center; gap: 0.2rem;
  background: rgba(13, 16, 23, 0.25);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.5rem; border-radius: 3px;
  font-family: var(--font-mono); font-weight: 500;
  font-size: 0.5rem; cursor: pointer;
  transition: color .12s, border-color .12s, background-color .12s; white-space: nowrap;
  letter-spacing: 0.02em;
}
.btn:hover:not(:disabled) {
  color: var(--color-blue);
  border-color: rgba(122, 162, 247, 0.45);
  background: rgba(122, 162, 247, 0.08);
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.28; cursor: default; }
.btn svg { width: 0.65rem; height: 0.65rem; }

#btn-play-pause {
  color: var(--text-secondary);
  border-color: var(--border-default);
}

.btn-secondary {
  background: transparent; color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}
.btn-icon { padding: 0.2rem; }
.btn-icon svg { width: 0.58rem; height: 0.58rem; }

.speed-control {
  display: flex; align-items: center; gap: 0.25rem;
  font-size: 0.47rem; color: var(--text-muted); padding: 0.15rem 0.3rem;
}
.speed-control input[type="range"] {
  appearance: none; background: rgba(255,255,255,0.08);
  height: 2px; width: 2.5rem; outline: none; border-radius: 2px;
}
.speed-control input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 0.4rem; height: 0.4rem;
  background: var(--text-muted); border-radius: 50%; cursor: pointer;
  transition: background 0.15s;
}
.speed-control input[type="range"]:hover::-webkit-slider-thumb { background: var(--color-blue); }

/* ─── WORKSPACE ─── */
.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 31vw;
  gap: 0.8rem;
  min-height: 0;
}

/* ─── PANEL CHROME (shared by canvas + inspector) ─── */
.dots { display: flex; gap: 4px; align-items: center; }
.dot  { width: 0.45rem; height: 0.45rem; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #febc2e; }
.dot-g { background: #28c840; }

/* ─── CANVAS PANEL ─── */
.canvas-panel {
  background: var(--bg-panel);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 28px 72px rgba(0,0,0,0.65),
    0 6px 18px rgba(0,0,0,0.45),
    0 0 80px rgba(122,162,247,0.03);
}

.canvas-panel-header {
  padding: 0.38rem 0.65rem;
  border-bottom: 1px solid rgba(0,0,0,0.4);
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-surface); flex-shrink: 0;
  user-select: none;
}

.canvas-panel-header-left {
  display: flex; align-items: center; gap: 0.5rem;
}

.canvas-panel-title {
  font-size: 0.5rem;
  color: var(--text-muted);
  letter-spacing: 0.01em;
}

.diagram-area-container {
  flex: 1;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  /* subtle dot grid */
  background-image: radial-gradient(circle, rgba(122,162,247,0.05) 1px, transparent 1px);
  background-size: 1.8rem 1.8rem;
}

.diagram-area {
  position: relative;
  width: 92%;
  height: 92%;
}

/* ─── SVG CONNECTORS ─── */
.svg-connectors {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 1;
}

.connection-edge {
  stroke: rgba(255,255,255,0.06); stroke-width: 1.5px;
  fill: none; transition: stroke 0.4s var(--ease-smooth), stroke-width 0.3s;
}
.connection-edge.active-edge {
  stroke: rgba(122,162,247,0.5); stroke-width: 2px;
}

.edge-pulse {
  fill: none; stroke: #7aa2f7; stroke-width: 2px;
  stroke-dasharray: 8, 40; stroke-dashoffset: 0;
  opacity: 0; transition: opacity 0.3s;
}
.edge-pulse.active-flow {
  opacity: 0.85;
  stroke: #7aa2f7;
  stroke-width: 2.2px;
  filter: drop-shadow(0 0 4px rgba(122, 162, 247, 0.6));
  animation: flow-dash 1.3s linear infinite;
}

@keyframes flow-dash {
  from { stroke-dashoffset: 96; }
  to   { stroke-dashoffset: 0;  }
}

/* ─── STATE NODES ─── */
.state-node {
  position: absolute;
  width: 12rem;
  height: 3.2rem;
  background: var(--bg-page);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  cursor: pointer; z-index: 2;
  transform: translate(-50%, -50%);
  transition: border-color 0.3s var(--ease-out),
              box-shadow 0.3s var(--ease-out),
              opacity 0.3s;
}

.state-node-skill       { top: 13%;   left: 50%;   }
.state-node-agent       { top: 43.5%; left: 87%;   }
.state-node-trajectory  { top: 87%;   left: 73%;   }
.state-node-skillgrade  { top: 87%;   left: 27%;   }
.state-node-optimizer   { top: 43.5%; left: 13%;   }

.state-node:hover { border-color: rgba(255,255,255,0.18); }

.state-node.inactive {
  border-color: rgba(255,255,255,0.05);
}
.state-node.inactive:hover {
  border-color: rgba(255,255,255,0.14);
}
.state-node.inactive .node-name {
  color: var(--text-muted);
}
.state-node.inactive .node-step-num {
  border-color: rgba(255,255,255,0.05);
  color: var(--text-muted);
  background: var(--bg-page);
}

/* Dimmed fail/pass when not active */
.state-node.inactive.node-fail {
  border-color: rgba(247,118,142,0.22) !important;
  box-shadow: none !important;
}
.state-node.inactive.node-fail .node-step-num {
  border-color: rgba(247,118,142,0.22) !important;
  color: rgba(247,118,142,0.38) !important;
}
.state-node.inactive.node-pass {
  border-color: rgba(158,206,106,0.22) !important;
  box-shadow: none !important;
}
.state-node.inactive.node-pass .node-step-num {
  border-color: rgba(158,206,106,0.22) !important;
  color: rgba(158,206,106,0.38) !important;
}

/* Active state — blue glow */
.state-node.active-node {
  border-color: var(--color-blue);
  border-width: 1.5px;
  box-shadow:
    0 0 0 1px rgba(122,162,247,0.1),
    0 0 1.8rem rgba(122,162,247,0.22),
    inset 0 0 1rem rgba(122,162,247,0.04);
}

/* Fail / pass colorings */
.state-node.node-fail,
.state-node.active-node.node-fail {
  border-color: var(--color-error) !important;
  box-shadow: 0 0 1.4rem rgba(247,118,142,0.22) !important;
}
.state-node.node-pass,
.state-node.active-node.node-pass {
  border-color: var(--color-success) !important;
  box-shadow: 0 0 1.4rem rgba(158,206,106,0.22) !important;
}

.node-name {
  font-size: 0.65rem; font-weight: 500;
  color: var(--text-primary); letter-spacing: 0.01em;
}

.node-step-num {
  position: absolute; top: -0.5rem; left: -0.5rem;
  width: 1.1rem; height: 1.1rem;
  background: var(--bg-page);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.42rem; font-weight: 600; color: var(--text-muted);
  transition: all 0.3s;
}
.state-node.active-node .node-step-num {
  border-color: var(--color-blue);
  color: var(--color-blue);
  background: var(--bg-panel);
  box-shadow: 0 0 0.5rem rgba(122,162,247,0.3);
}
.state-node.node-fail .node-step-num  { border-color: var(--color-error) !important;   color: var(--color-error) !important; }
.state-node.node-pass .node-step-num  { border-color: var(--color-success) !important; color: var(--color-success) !important; }

/* ─── INSPECTOR PANEL ─── */
.inspector-panel {
  background: var(--bg-panel);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-md);
  display: flex; flex-direction: column;
  overflow: hidden; transition: border-color 0.3s;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04),
    0 28px 72px rgba(0,0,0,0.65),
    0 6px 18px rgba(0,0,0,0.45);
}
.inspector-panel.panel-highlight {
  border-color: rgba(122,162,247,0.28);
  box-shadow:
    0 0 0 1px rgba(122,162,247,0.08),
    0 0 2.5rem rgba(122,162,247,0.08),
    0 6px 18px rgba(0,0,0,0.45);
}

.inspector-header {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--bg-surface);
  border-bottom: 1px solid rgba(0,0,0,0.4);
  padding: 0.38rem 0.6rem; flex-shrink: 0;
  user-select: none;
}

.inspector-header-left {
  display: flex; align-items: center; gap: 0.5rem;
}

.card-state-title {
  font-size: 0.65rem; font-weight: 500; letter-spacing: 0.01em;
  color: var(--text-muted);
  white-space: nowrap;
}

.inspector-tabs { display: none !important; }

.inspector-tab-btn {
  background: transparent; border: 1px solid transparent;
  color: var(--text-muted);
  padding: 0.12rem 0.2rem;
  font-family: var(--font-mono); font-size: 0.65rem; font-weight: 500;
  border-radius: 3px; cursor: pointer; transition: color 0.12s, border-color 0.12s, background-color 0.12s;
  letter-spacing: 0.01em;
}
.inspector-tab-btn:hover { color: var(--text-secondary); }
.inspector-tab-btn.active { color: var(--text-secondary); }

.inspector-tab-btn.tab-focused-now {
  background: rgba(122,162,247,0.12);
  color: var(--color-blue) !important;
  border-color: rgba(122,162,247,0.28);
}
.inspector-tab-btn.tab-focused-now.tab-fail {
  background: rgba(247,118,142,0.1);
  color: var(--color-error) !important;
  border-color: rgba(247,118,142,0.28);
}
.inspector-tab-btn.tab-focused-now.tab-pass {
  background: rgba(158,206,106,0.1);
  color: var(--color-success) !important;
  border-color: rgba(158,206,106,0.28);
}

.inspector-body {
  flex: 1; padding: 0.5rem;
  overflow-y: auto; background: #0a0c14; min-height: 0;
}

.inspector-section {
  display: none; flex-direction: column; gap: 0.35rem; height: 100%;
}
.inspector-section.active-section {
  display: flex; animation: section-in 0.2s var(--ease-out);
}

@keyframes section-in {
  from { opacity: 0; transform: translateY(0.15rem); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Skill editor */
.skill-name-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-subtle);
  padding: 0.2rem 0.4rem; border-radius: 3px;
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--color-cyan);
}

.skill-editor-container { display: flex; flex-direction: column; flex: 1; min-height: 0; }

.skill-editor {
  flex: 1; background: var(--bg-panel);
  border: 1px solid var(--border-subtle); border-radius: 3px;
  color: var(--text-primary);
  padding: 0.4rem 0.45rem;
  font-family: var(--font-mono); font-size: 0.75rem; line-height: 1.65;
  resize: none; outline: none;
}
.skill-editor:focus { border-color: rgba(122,162,247,0.3); }

/* ─── TERMINAL CARD ─── */
.terminal-card {
  background: var(--bg-page);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  flex: 1; display: flex; flex-direction: column;
  overflow: hidden; min-height: 0;
}

.terminal-card-header {
  background: var(--bg-surface);
  padding: 0.22rem 0.35rem;
  border-bottom: 1px solid rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}

.terminal-dots { display: flex; gap: 0.2rem; }
.terminal-dots span { width: 0.32rem; height: 0.32rem; border-radius: 50%; }
.terminal-dots span:nth-child(1) { background: #ff5f57; opacity: 0.7; }
.terminal-dots span:nth-child(2) { background: #febc2e; opacity: 0.7; }
.terminal-dots span:nth-child(3) { background: #28c840; opacity: 0.7; }

.terminal-card-body {
  flex: 1; padding: 0.35rem;
  overflow-y: auto;
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex; flex-direction: column; gap: 0.25rem;
  min-height: 0; line-height: 1.55;
}

/* Trajectory steps */
.traj-step {
  border-left: 2px solid rgba(255,255,255,0.05);
  padding-left: 0.35rem; margin-left: 0.1rem;
  animation: step-in 0.18s var(--ease-out);
}
@keyframes step-in {
  from { opacity: 0; transform: translateX(-0.15rem); }
  to   { opacity: 1; transform: translateX(0); }
}
.traj-step-active { border-left-color: rgba(122,162,247,0.35); }

.traj-step-type {
  font-size: 0.7rem; text-transform: uppercase;
  font-weight: 600; letter-spacing: 0.07em; margin-bottom: 0.08rem;
}

.traj-step-thought { font-style: italic; color: var(--text-secondary); line-height: 1.45; }

.traj-step-tool {
  background: rgba(224,175,104,0.06);
  padding: 0.15rem 0.3rem; border-radius: 3px;
  color: var(--color-amber); border: 1px solid rgba(224,175,104,0.18);
  font-size: 0.75rem;
}

.traj-step-output {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.04);
  padding: 0.15rem 0.3rem; border-radius: 3px;
  white-space: pre-wrap; font-size: 0.72rem; line-height: 1.45;
}
.traj-step-output.err {
  color: var(--color-error);
  border-left: 2px solid var(--color-error);
  background: rgba(247,118,142,0.04);
}

.terminal-prompt { display: flex; gap: 0.25rem; color: var(--text-secondary); }

.cursor {
  display: inline-block; width: 0.25rem; height: 0.7rem;
  background: var(--text-muted);
  animation: blink 1s step-end infinite; vertical-align: middle;
}
@keyframes blink { from, to { opacity: 0; } 50% { opacity: 1; } }

/* ─── SCORECARD ─── */
.scorecard-box {
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.4rem; display: flex; flex-direction: column; gap: 0.3rem;
}

.scorecard-box-header {
  display: flex; justify-content: space-between; align-items: center;
  padding-bottom: 0.2rem; border-bottom: 1px solid var(--border-subtle);
}

.badge {
  font-size: 0.7rem; padding: 0.06rem 0.28rem; border-radius: 3px;
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--text-muted); border: 1px solid var(--border-subtle);
}
.badge-fail { background: rgba(247,118,142,0.07); color: var(--color-error);   border-color: rgba(247,118,142,0.28); }
.badge-pass { background: rgba(158,206,106,0.07); color: var(--color-success); border-color: rgba(158,206,106,0.28); }

.scorecard-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0.25rem; }

.score-card-metric {
  background: var(--bg-page); border: 1px solid var(--border-subtle);
  padding: 0.3rem; border-radius: 3px; text-align: center;
}
.score-card-metric span {
  display: block; font-size: 0.65rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600;
}
.score-card-metric strong {
  display: block; font-size: 1.2rem; color: var(--text-primary);
  margin-top: 0.06rem; font-weight: 600;
}

/* Findings */
.findings-list { display: flex; flex-direction: column; gap: 0.22rem; overflow-y: auto; }

.finding-item {
  background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle);
  padding: 0.3rem 0.4rem; border-radius: 3px;
  display: flex; gap: 0.3rem; align-items: flex-start;
  animation: section-in 0.2s var(--ease-out);
}
.finding-item.violation { border-left: 2px solid var(--color-error);   background: rgba(247,118,142,0.03); }
.finding-item.success   { border-left: 2px solid var(--color-success); background: rgba(158,206,106,0.03); }
.finding-item svg { width: 0.55rem; height: 0.55rem; flex-shrink: 0; margin-top: 0.05rem; }
.finding-item.violation svg { color: var(--color-error); }
.finding-item.success   svg { color: var(--color-success); }

.finding-item-content h5 { font-size: 0.75rem;  font-weight: 600; margin-bottom: 0.06rem; color: var(--text-primary); }
.finding-item-content p  { font-size: 0.7rem; color: var(--text-secondary); line-height: 1.45; }

/* ─── DIFF ─── */
.diff-card {
  display: flex; flex-direction: column;
  border: 1px solid var(--border-subtle); border-radius: var(--radius-sm);
  background: var(--bg-page); overflow: hidden;
  font-family: var(--font-mono); font-size: 0.72rem;
  flex: 1; min-height: 0;
}
.diff-card-header {
  background: var(--bg-surface);
  padding: 0.22rem 0.4rem; border-bottom: 1px solid rgba(0,0,0,0.4);
  color: var(--text-muted); font-size: 0.7rem; font-weight: 500; flex-shrink: 0;
}
.diff-card-body { padding: 0.35rem; overflow-y: auto; line-height: 1.7; }
.diff-card-line { display: flex; white-space: pre-wrap; padding: 0.04rem 0.2rem; border-radius: 2px; }
.diff-card-line.added   { color: var(--color-success); background: rgba(158,206,106,0.05); }
.diff-card-line.removed { color: var(--color-error);   background: rgba(247,118,142,0.05); }
.diff-line-number {
  width: 0.8rem; color: var(--text-muted); text-align: center;
  user-select: none; flex-shrink: 0; font-size: 0.68rem;
}

/* ─── ITERATION INDICATOR ─── */
.iter-indicator-pill {
  background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle);
  border-radius: 1rem; padding: 0.1rem 0.4rem;
  display: flex; align-items: center; gap: 0.22rem;
}
.iter-dot   { width: 0.35rem; height: 0.35rem; border-radius: 50%; background: var(--color-error); }
.iter-indicator-pill.iter-2 .iter-dot { background: var(--color-success); }
.iter-label { font-size: 0.46rem; font-weight: 500; color: var(--text-secondary); }

/* ─── FOOTER ─── */
.slide-footer {
  flex-shrink: 0; padding: 0.35rem 0 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.46rem; color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 0.2rem;
}
.footer-center { font-size: 0.2rem; color: rgba(255,255,255,0.06); }

/* ─── ANIMATIONS ─── */
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }