/* Neo-Brutalism theme — based on design-system reference */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700;800&display=swap');

:root {
  --color-primary: #000000;
  --color-secondary: #FFFFFF;
  --color-cta: #00C2CB;
  --color-accent-magenta: #FF00FF;
  --color-accent-yellow: #FFD700;
  --color-background: #F5F5DC;
  --color-text: #000000;
  --color-card-bg: #FFFFFF;
  --color-muted: #333333;
  --border-width: 3px;
  --border-color: #000000;

  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  --shadow-sm: 4px 4px 0 0 #000000;
  --shadow-md: 8px 8px 0 0 #000000;
  --shadow-lg: 12px 12px 0 0 #000000;
  --shadow-xl: 16px 16px 0 0 #000000;
}

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

body {
  background-color: var(--color-background);
  color: var(--color-text);
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  margin-bottom: var(--space-md);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
  font-weight: 700;
}

a:hover {
  color: var(--color-cta);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  width: 100%;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.hero {
  text-align: center;
  padding: var(--space-3xl) 0;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--color-text);
  -webkit-text-fill-color: currentColor;
  background: none;
  margin-bottom: var(--space-md);
  text-shadow: 4px 4px 0 var(--color-cta);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 auto;
  font-weight: 500;
}

.card {
  background: var(--color-card-bg);
  border-radius: 0;
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transition: transform 120ms ease, box-shadow 120ms ease;
  border: var(--border-width) solid var(--border-color);
}

.card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 14px 14px 0 0 #000000;
}

.input, .select {
  padding: 12px 16px;
  background-color: #FFFFFF;
  border: var(--border-width) solid var(--border-color);
  border-radius: 0;
  font-size: 16px;
  color: var(--color-text);
  transition: transform 120ms ease, box-shadow 120ms ease;
  width: 100%;
  font-family: inherit;
  box-shadow: var(--shadow-sm);
}

.input:focus, .select:focus {
  border-color: var(--border-color);
  outline: none;
  box-shadow: var(--shadow-md);
  transform: translate(-1px, -1px);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-size: 1rem;
  cursor: pointer;
  text-decoration: none;
  border: var(--border-width) solid var(--border-color);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn-primary {
  background: var(--color-cta);
  color: #000000;
  padding: 12px 24px;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn-primary:hover {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.btn-secondary {
  background: var(--color-accent-yellow);
  color: #000000;
  padding: 12px 24px;
  border-radius: 0;
  box-shadow: var(--shadow-sm);
  transition: transform 120ms ease, box-shadow 120ms ease;
}

.btn-secondary:hover {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.w-full { width: 100%; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-md { gap: var(--space-md); }

.progress-container {
  width: 100%;
  background-color: #FFFFFF;
  border-radius: 0;
  height: 20px;
  overflow: hidden;
  margin-top: var(--space-md);
  position: relative;
  border: var(--border-width) solid var(--border-color);
  display: none;
  box-shadow: var(--shadow-sm);
}

.progress-bar {
  height: 100%;
  background-color: var(--color-cta);
  width: 0%;
  transition: width 0.3s ease;
  border-radius: 0;
}

.status-text {
  font-size: 0.875rem;
  color: var(--color-muted);
  margin-top: var(--space-sm);
  white-space: pre-wrap;
  min-height: 1.5em;
  font-weight: 600;
}

.file-upload-wrapper {
  position: relative;
  width: 100%;
  height: 150px;
  border: var(--border-width) dashed var(--border-color);
  border-radius: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: transform 120ms ease, box-shadow 120ms ease;
  background: #FFFFFF;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.file-upload-wrapper:hover {
  border-color: var(--border-color);
  background: var(--color-accent-yellow);
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-md);
}

.file-upload-wrapper input[type="file"] {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  opacity: 0;
  cursor: pointer;
}

.icon-upload {
  width: 48px;
  height: 48px;
  color: #000000;
  margin-bottom: var(--space-sm);
}

/* LLM Router chat */
.container:has(.chat-container) {
  max-width: 800px;
}

.chat-container {
  background: var(--color-card-bg);
  border-radius: 0;
  border: var(--border-width) solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

#chatHistory {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  background: var(--color-background);
}

.chat-input-area {
  padding: var(--space-md);
  background: var(--color-card-bg);
  display: flex;
  gap: var(--space-sm);
  border-top: var(--border-width) solid var(--border-color);
}

.chat-input-area .input {
  flex: 1;
  width: auto;
}

.btn-send {
  background: var(--color-cta);
  color: #000000;
  border: var(--border-width) solid var(--border-color);
  padding: 12px 24px;
  border-radius: 0;
  font-weight: 800;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 120ms ease, box-shadow 120ms ease;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn-send:hover {
  transform: translate(4px, 4px);
  box-shadow: none;
}

.message {
  max-width: 85%;
  padding: 12px 16px;
  border-radius: 0;
  position: relative;
  animation: fadeIn 0.3s ease;
  border: 2px solid var(--border-color);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-user {
  align-self: flex-end;
  background: var(--color-cta);
  color: #000000;
}

.message-ai {
  align-self: flex-start;
  background: #FFFFFF;
  color: #000000;
}

.tool-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: var(--color-accent-yellow);
  border: 2px solid var(--border-color);
  border-radius: 0;
  margin-right: 8px;
  font-size: 14px;
}

.markdown-body {
  font-size: 0.95rem;
}

.markdown-body p {
  margin-bottom: 0.5rem;
}

.markdown-body pre {
  background: var(--color-background);
  padding: 0.75rem;
  border: 2px solid var(--border-color);
  border-radius: 0;
  margin: 0.5rem 0;
  overflow-x: auto;
}

/* RAG module shared components */
.section-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-text);
}

.text-muted {
  color: var(--color-muted);
}

.label-muted {
  color: var(--color-muted);
  font-size: 0.875rem;
}

.block {
  display: block;
}

.result-panel {
  margin-top: 1rem;
  white-space: pre-wrap;
  background-color: var(--color-card-bg);
  padding: 1rem;
  border-radius: 0;
  border: var(--border-width) solid var(--border-color);
  display: none;
  max-height: 400px;
  overflow-y: auto;
  font-family: monospace;
  font-size: 0.875rem;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.result-summary {
  cursor: pointer;
  color: var(--color-text);
  margin-bottom: 10px;
  font-weight: bold;
}

.result-item {
  background: #FFFFFF;
  color: #000000;
  padding: 10px;
  margin-bottom: 5px;
  border-radius: 0;
  border: 2px solid var(--border-color);
  border-left: 4px solid var(--color-cta);
}

.result-item-embedding {
  border-left-color: var(--color-accent-yellow);
}

.embedding-preview {
  margin-top: 5px;
  background: var(--color-background);
  padding: 5px;
  border-radius: 0;
  border: 2px solid var(--border-color);
  font-family: monospace;
  font-size: 0.75rem;
}

.chat-panel {
  background: var(--color-card-bg);
  border-radius: 0;
  border: var(--border-width) solid var(--border-color);
  padding: 1rem;
  height: 500px;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-md);
}

.chat-history {
  flex: 1;
  overflow-y: auto;
  margin-bottom: 1rem;
  padding: 15px;
  background: var(--color-background);
  border: 2px solid var(--border-color);
  border-radius: 0;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

.chat-message {
  margin-bottom: 12px;
  padding: 12px;
  border-radius: 0;
  max-width: 85%;
  border: 2px solid var(--border-color);
}

.chat-message-user {
  background: var(--color-cta);
  color: #000000;
  align-self: flex-end;
  margin-left: auto;
}

.chat-message-ai {
  background: #FFFFFF;
  color: #000000;
  margin-right: auto;
}

.chat-message-system {
  background: #FF00FF;
  color: #000000;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
  margin-top: 1rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--color-text);
}

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.markdown-body li {
  margin-bottom: 0.25rem;
}

.markdown-body code {
  background-color: var(--color-background);
  padding: 0.2em 0.4em;
  border-radius: 0;
  border: 1px solid var(--border-color);
  font-family: monospace;
  font-size: 0.85em;
}

.markdown-body pre code {
  background-color: transparent;
  padding: 0;
  border: none;
  font-size: 0.9em;
  color: var(--color-text);
}

.markdown-body blockquote {
  border-left: 4px solid var(--color-cta);
  padding-left: 1rem;
  margin-left: 0;
  margin-bottom: 0.75rem;
  color: var(--color-muted);
}

.markdown-body a {
  color: var(--color-primary);
  text-decoration: underline;
}

.callout {
  padding: 1rem;
  margin-bottom: 1rem;
  border-left: 4px solid var(--color-cta);
  background-color: #FFFFFF;
  border: 2px solid var(--border-color);
  border-radius: 0;
}

.gap-sm {
  gap: var(--space-sm);
}