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

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

body {
  background: #000;
  color: #f0f0f0;
  font-family: Consolas, "Lucida Console", monospace;
  height: 100vh;
  overflow: hidden; /* prevent page-level scrollbar; inner areas scroll */
}

#idle-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: linear-gradient(90deg, #00cc66, #009944);
  transform-origin: left;
  z-index: 1200;
  pointer-events: none;
}

/* Uniform scrollbar styling */
body,
.console,
#keyboard-panel {
  scrollbar-width: thin;
  scrollbar-color: #333 #0a0a0a;
}

body::-webkit-scrollbar,
.console::-webkit-scrollbar,
#keyboard-panel::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-track,
.console::-webkit-scrollbar-track,
#keyboard-panel::-webkit-scrollbar-track {
  background: #0a0a0a;
}

body::-webkit-scrollbar-thumb,
.console::-webkit-scrollbar-thumb,
#keyboard-panel::-webkit-scrollbar-thumb {
  background: #333;
}

body::-webkit-scrollbar-thumb:hover,
.console::-webkit-scrollbar-thumb:hover,
#keyboard-panel::-webkit-scrollbar-thumb:hover {
  background: #444;
}

/* Overall layout: main area + right sidebar */
#layout {
  display: grid;
  grid-template-columns: 3fr 1fr; /* 75% main, 25% about */
  height: 100vh;
}

/* Outer: vertical split (top / bottom) */
#split-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Top row: 2 columns (payload / RAG) */
#top-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  flex: 1 1 50%;
  min-height: 0;
  border-bottom: 1px solid #333;
}

.pane {
  display: flex;
  flex-direction: column;
  border: 2px solid #555;
  min-height: 0;
  transition: border-color 0.5s ease, box-shadow 0.5s ease;
}

.pane-bottom {
  flex: 1 1 50%;
  border-bottom: 2px solid #555;
}

.pane-title {
  padding: 0.35rem 0.75rem;
  font-size: 1.6rem;
  font-weight: 700;
  background: #1a1115; /* slight pink tint for headers */
  border-bottom: 2px solid #555;
  color: #aaa;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  flex: 0 0 auto;
}

.pane-top:first-child {
  border-right: 2px solid #555;
}

.pane.highlight-panel {
  border-color: #fff;
  box-shadow: 0 0 0 1px #fff;
}

.pane.highlight-panel .pane-title {
  background: #f0f0f0;
  color: #000;
  border-color: #fff;
}

.about-pane {
  display: flex;
  flex-direction: column;
  border-left: 2px solid #555;
  background: rgba(255, 105, 180, 0.1); /* subtle pink tint */
}

.about-pane .pane-title {
  background: rgba(255, 105, 180, 0.1); /* match body tint */
}

.about-body {
  flex: 1 1 auto;
  padding: 0.75rem;
  overflow-y: auto;
  line-height: 1.35;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.about-body p {
  margin: 0 0 0.25rem;
}

.about-body ol {
  margin: 0.1rem 0 0.3rem 1.25rem;
  padding: 0;
  list-style: none;
  counter-reset: about-steps;
}

.about-body li {
  margin-bottom: 0.1rem;
}

.about-body p:first-child {
  margin-top: 0;
}

.about-step {
  position: relative;
  padding: 0.05rem 0.25rem 0.05rem 2rem;
  border-radius: 0;
  color: inherit;
  line-height: 1.3;
  transition: background 0.5s ease, color 0.5s ease;
}

.about-step::before {
  counter-increment: about-steps;
  content: counter(about-steps) ".";
  position: absolute;
  left: 0;
  top: 0.15rem;
  width: 1.5rem;
  text-align: right;
  color: currentColor;
  font-variant-numeric: tabular-nums;
}

.about-step.highlight-step {
  background: #f0f0f0;
  color: #000;
}

/* Terminal / consoles */
.console {
  box-sizing: border-box;
  padding: 0.5rem;
  flex: 1 1 auto;
  overflow-y: auto;
  margin: 0;
  font-size: 1.1rem; /* bumped up for slightly larger console text */
  outline: none;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: break-word;
  caret-color: transparent;
  min-height: 0;
}

#request-console,
#rag-console {
  background: #000;
  color: #808080; /* 50% white to indicate read-only */
}

.line {
  white-space: pre-wrap;
}

.spacer-line {
  line-height: 1.2;
}

/* Prompt caret: block-style like a console cursor */
#prompt {
  position: relative;
  display: inline-block;
  padding-right: 0.1ch; /* keeps caret flush to text without overlap */
}

#prompt::after {
  content: "";
  position: absolute;
  left: 100%;
  top: 0.02em;
  width: 0.7ch;
  height: 1.05em;
  background: #f0f0f0;
  border-radius: 1px;
  animation: block-blink 1s steps(1) infinite;
}

#prompt.waiting::after {
  content: "";
  animation: none;
  opacity: 0;
}

#prompt.input-blocked {
  color: transparent;
}

#prompt.input-blocked::after {
  background: transparent;
}

@keyframes block-blink {
  0%,
  50% {
    opacity: 1;
  }
  50.01%,
  100% {
    opacity: 0;
  }
}

/* Highlight for query tokens in RAG chunks */
.rag-highlight {
  background: #003300;
  color: #ccffcc;
  text-decoration: underline;
}

/* Model output in dark green */
.model-line {
  color: #ffe600;
}

.error-line {
  color: #ff4d4f;
}

.intro-line {
  color: #ffe600;
}

/* Row under the chat console */
#input-row {
  display: flex;
  justify-content: center;
  position: relative;
  padding: 0.5rem 0.5rem 0.75rem;
  border-top: 1px solid #333;
  flex: 0 0 auto;
  align-items: center;
}

#kb-toggle {
  width: 25%;
  min-width: 8rem;
  padding: 0.65rem 1rem;
  background: #222;
  color: #f0f0f0;
  border: 1px solid #555;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

#kb-toggle.chat-cta {
  animation: kb-cta 2s ease-in-out infinite;
}

#kb-toggle.hidden-during-stream {
  opacity: 0;
  pointer-events: none;
}

@keyframes kb-cta {
  0% {
    background: #222;
    color: #f0f0f0;
    border-color: #555;
  }
  50% {
    background: #f0f0f0;
    color: #000;
    border-color: #aaa;
  }
  100% {
    background: #222;
    color: #f0f0f0;
    border-color: #555;
  }
}

#kb-toggle:hover,
#kb-toggle:focus-visible {
  background: #333;
  border-color: #888;
  outline: none;
}

body.keyboard-visible #kb-toggle {
  background: #f0f0f0;
  color: #000;
  border-color: #aaa;
}

#reset-button {
  position: absolute;
  left: 0.5rem;
  width: auto;
  min-width: 0;
  padding: 0.65rem 1rem; /* match CHAT height */
  background: #111;
  color: #f0f0f0;
  border: 1px solid #555;
  font-family: inherit;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

#reset-button:hover,
#reset-button:focus-visible {
  background: #222;
  border-color: #888;
  outline: none;
}

#keyboard-panel {
  display: flex;
  flex-direction: column;
  flex: 0 0 0;
  max-height: 0;
  height: 0;
  overflow: hidden;
  background: #0a0a0a;
  border-top: 2px solid #555;
  transform: translateY(100%);
  opacity: 0;
  pointer-events: none;
  transition:
    transform 0.3s ease,
    opacity 0.3s ease,
    max-height 0.3s ease,
    height 0.3s ease,
    flex-basis 0.3s ease;
}

body.keyboard-visible #keyboard-panel {
  flex: 0 0 33vh;
  max-height: 33vh;
  height: 33vh;
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
  border-top: 2px solid #555;
}

#keyboard-panel .pane-title {
  flex: 0 0 auto;
}

.keyboard-body {
  flex: 1 1 auto;
  padding: 0.5rem;
  background: #111;
  color: #ccc;
  display: flex;
  align-items: stretch;
  justify-content: center;
  font-size: 0.95rem;
  border-top: 1px solid #222;
}

/* simple-keyboard overrides for dark theme */
#simple-keyboard {
  width: 100%;
  height: 100%;
  margin: 0;
}

.hg-theme-default {
  background: #111;
  border-radius: 0;
  box-shadow: none;
}

.hg-row .hg-button {
  background: #222;
  color: #f0f0f0;
  border: 1px solid #333;
}

.hg-button:active,
.hg-button.hg-activeButton {
  background: #333;
}

/* Highlight send key in green (aligns with existing model text color) */
.simple-keyboard .hg-button.hg-send {
  background: #00aa00;
  border-color: #00aa00;
  color: #000;
}

.simple-keyboard .hg-button.hg-send:hover,
.simple-keyboard .hg-button.hg-send:focus-visible,
.simple-keyboard .hg-button.hg-send.hg-activeButton,
.simple-keyboard .hg-button.hg-send:active {
  background: #00cc00;
  border-color: #00cc00;
  color: #000;
}

/* Narrower space bar */
.simple-keyboard .hg-button.hg-space {
  flex: 0 0 80%;
  max-width: 80%;
}

/* Intro overlay */
.intro-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.67);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  z-index: 1000;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

@supports (backdrop-filter: blur(4px)) {
  .intro-overlay {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }
}

.intro-overlay.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-card {
  width: min(840px, 94vw);
  max-height: 82vh;
  overflow-y: auto;
  background: #0a0a0a;
  border: 1px solid #444;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.7);
  padding: 2rem 2.25rem;
  color: #f0f0f0;
  will-change: transform, opacity;
}

.intro-card h1 {
  margin: 0 0 0.75rem;
  font-size: 1.6rem;
}

.intro-card p {
  margin: 0 0 0.75rem;
  line-height: 1.5;
  color: #ddd;
}

.intro-list {
  margin: 0 0 1rem 1.25rem;
  padding-left: 0.5rem;
  line-height: 1.5;
  color: #ddd;
}

.intro-list li {
  margin: 0 0 0.35rem;
}

#intro-continue {
  margin-top: 1.25rem;
  background: #00aa00;
  color: #000;
  border: 1px solid #00aa00;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

#intro-continue:hover,
#intro-continue:focus-visible {
  background: #00cc00;
  border-color: #00cc00;
  outline: none;
}

.intro-card.intro-exit {
  animation: intro-drift-fade 0.9s ease forwards;
}

.intro-overlay.intro-exit {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease 0.5s, visibility 0.4s ease 0.5s;
}

@keyframes intro-drift-fade {
  0% {
    transform: translateY(0);
    opacity: 1;
  }
  60% {
    transform: translateY(32vh);
    opacity: 0.7;
  }
  100% {
    transform: translateY(40vh);
    opacity: 0;
  }
}