/* BookSkill Studio — Stylesheet conforming to DESIGN.md */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --canvas-base: #090A0F;
  --surface-panel: #0F121C;
  --surface-card: #161A28;
  --surface-elevated: #1E2438;
  --surface-input: #0B0E17;
  
  --border-hairline: rgba(255, 255, 255, 0.08);
  --border-subtle: rgba(255, 255, 255, 0.14);
  --border-focus: rgba(16, 185, 129, 0.5);
  
  --accent-emerald: #10B981;
  --accent-emerald-hover: #059669;
  --accent-emerald-muted: rgba(16, 185, 129, 0.12);
  --accent-teal: #14B8A6;
  --accent-teal-muted: rgba(20, 184, 166, 0.12);
  
  --text-primary: #F1F5F9;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--canvas-base);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 18, 28, 0.6);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Code & Mono */
.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

/* Hairline borders */
.border-hairline {
  border-color: var(--border-hairline);
}
.border-subtle {
  border-color: var(--border-subtle);
}

/* Surface backgrounds */
.bg-canvas {
  background-color: var(--canvas-base);
}
.bg-surface-panel {
  background-color: var(--surface-panel);
}
.bg-surface-card {
  background-color: var(--surface-card);
}
.bg-surface-elevated {
  background-color: var(--surface-elevated);
}
.bg-surface-input {
  background-color: var(--surface-input);
}

/* Pulse animation for running conversion */
@keyframes pulse-subtle {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}
.animate-pulse-subtle {
  animation: pulse-subtle 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Markdown rendered typography */
.prose-dark {
  color: #CBD5E1;
  font-size: 13.5px;
  line-height: 1.68;
}
.prose-dark h1, .prose-dark h2, .prose-dark h3, .prose-dark h4 {
  color: #F8FAFC;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin-top: 1.5em;
  margin-bottom: 0.6em;
}
.prose-dark h1 { font-size: 1.5rem; border-bottom: 1px solid var(--border-hairline); padding-bottom: 0.4em; }
.prose-dark h2 { font-size: 1.25rem; border-bottom: 1px solid var(--border-hairline); padding-bottom: 0.3em; }
.prose-dark h3 { font-size: 1.05rem; }
.prose-dark p { margin-top: 0.6em; margin-bottom: 0.8em; }
.prose-dark ul, .prose-dark ol {
  padding-left: 1.5em;
  margin-top: 0.4em;
  margin-bottom: 0.8em;
}
.prose-dark li {
  margin-bottom: 0.3em;
}
.prose-dark strong {
  color: #F1F5F9;
  font-weight: 600;
}
.prose-dark a {
  color: var(--accent-emerald);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.prose-dark code:not(pre code) {
  font-family: 'JetBrains Mono', monospace;
  background-color: rgba(255, 255, 255, 0.08);
  color: #34D399;
  padding: 0.15em 0.35em;
  border-radius: 4px;
  font-size: 0.88em;
}
.prose-dark pre {
  background-color: #06080D;
  border: 1px solid var(--border-hairline);
  border-radius: 6px;
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 12px;
  margin: 1em 0;
}
.prose-dark pre code {
  font-family: 'JetBrains Mono', monospace;
  color: #E2E8F0;
  background: transparent;
  padding: 0;
}
.prose-dark blockquote {
  border-left: 3px solid var(--accent-emerald);
  background: rgba(16, 185, 129, 0.05);
  padding: 8px 14px;
  margin: 1em 0;
  border-radius: 0 4px 4px 0;
  color: #94A3B8;
}
.prose-dark table {
  width: 100%;
  border-collapse: collapse;
  margin: 1em 0;
  font-size: 12.5px;
}
.prose-dark th, .prose-dark td {
  border: 1px solid var(--border-hairline);
  padding: 8px 12px;
  text-align: left;
}
.prose-dark th {
  background-color: rgba(255, 255, 255, 0.04);
  color: #F8FAFC;
  font-weight: 600;
}
.prose-dark tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.015);
}

/* Status dots */
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.active {
  background-color: #10B981;
  box-shadow: 0 0 8px rgba(16, 185, 129, 0.6);
}
.status-dot.idle {
  background-color: #64748B;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}