:root {
  --bg-color: #0A0A0A;
  --surface-color: #121212;
  --text-main: #F4F4F4;
  --text-muted: #888888;
  --border-color: #2A2A2A;
  --accent-gold: #BBA14F;
  --accent-gold-hover: #D4B65E;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Jost', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  background: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Background Gradients & Animation */
.bg-layer {
  position: fixed;
  inset: -20%;
  filter: blur(100px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.25; /* Subtle for luxury dark mode */
}
.bg1 { background: radial-gradient(circle at 20% 30%, #BBA14F 0%, transparent 35%); animation: drift 25s infinite alternate; }
.bg2 { background: radial-gradient(circle at 80% 70%, #2A2A2A 0%, transparent 40%); animation: drift2 30s infinite alternate; }
.bg3 { background: radial-gradient(circle at 50% 50%, #1A1A1A 0%, transparent 50%); animation: drift3 20s infinite alternate; }

@keyframes drift { from { transform: translate(-5%, -5%);} to { transform: translate(5%, 5%);} }
@keyframes drift2 { from { transform: translate(5%, -5%);} to { transform: translate(-5%, 5%);} }
@keyframes drift3 { from { transform: translate(0%, 5%);} to { transform: translate(0%, -5%);} }

/* Typography */
h1, h2, h3, h4 { font-weight: 300; letter-spacing: 0.05em; margin: 0; text-transform: uppercase; }

/* Top Nav */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 48px;
  background: var(--surface-color);
  border-bottom: 1px solid var(--border-color);
}
.logo { font-size: 1.2rem; font-weight: 500; letter-spacing: 0.15em; }
.nav-links a { text-decoration: none; color: var(--text-main); font-size: 0.85rem; letter-spacing: 0.1em; }

/* Core Layout */
.shell { max-width: 1400px; margin: 0 auto; padding: 60px 48px; position: relative; z-index: 1; }

.hero { margin-bottom: 40px; }
.hero h1 { font-size: 4rem; line-height: 1.1; margin-bottom: 16px; }
.accent-text { color: var(--accent-gold); }
.subtitle { font-size: 1.2rem; color: var(--text-muted); max-width: 600px; font-weight: 300; }

.divider { height: 1px; background: var(--border-color); margin: 40px 0; }

/* Controls */
.controls { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }
.controls-left { display: flex; align-items: center; gap: 24px; }
.mode-label { font-size: 0.75rem; letter-spacing: 0.1em; color: var(--text-muted); }
.mode-toggle { display: inline-flex; border: 1px solid var(--border-color); background: var(--surface-color); border-radius: 4px; overflow: hidden; }
.mode { background: transparent; border: none; padding: 10px 24px; font-family: 'Jost', sans-serif; font-size: 0.8rem; letter-spacing: 0.1em; cursor: pointer; transition: all 0.2s; color: var(--text-muted); }
.mode.active { background: var(--border-color); color: var(--text-main); font-weight: 500; }
.mode:not(.active):hover { color: var(--text-main); }

.actions { display: flex; gap: 16px; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  padding: 12px 24px;
  font-family: 'Jost', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  color: var(--text-main);
  transition: all 0.3s ease;
  border-radius: 4px;
}
.btn-outline:hover { border-color: var(--accent-gold); color: var(--accent-gold); }

/* Pulse Animation for Guided Tour */
.pulse-btn {
  position: relative;
  animation: pulse-glow 2s infinite;
  border-color: var(--accent-gold);
  color: var(--accent-gold);
}
@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(187, 161, 79, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(187, 161, 79, 0); }
  100% { box-shadow: 0 0 0 0 rgba(187, 161, 79, 0); }
}

/* Grid Layout */
.panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.col-left, .col-right { display: flex; flex-direction: column; gap: 40px; }

/* Panels */
.panel { 
  display: flex; 
  flex-direction: column;
  background: rgba(18, 18, 18, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
.panel-header { margin-bottom: 20px; }
.panel-header h3 { font-size: 1rem; color: var(--accent-gold); margin-bottom: 8px; }
.panel-desc { font-size: 0.9rem; color: var(--text-muted); margin: 0; }

/* Inputs & Content Boxes */
textarea, .content-box {
  width: 100%;
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 24px;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  transition: border-color 0.3s;
  white-space: pre-wrap; 
  word-wrap: break-word;
  word-break: normal;
  overflow-y: visible; 
  height: auto;
  border-radius: 4px;
}
textarea { min-height: 300px; resize: vertical; }
textarea:focus { outline: none; border-color: var(--accent-gold); }

.output-panel { min-height: 200px; }
.content-box { min-height: 100px; }
.soap-box { font-style: italic; color: #D4D4D4; }

/* Highlighting */
mark {
  color: #FAFAFA !important; /* High contrast text for dark mode highlighting */
  border: 1px solid rgba(255,255,255,0.15) !important;
  font-weight: 400;
}
mark b { font-size: 0.7em; letter-spacing: 0.05em; opacity: 0.7; text-transform: uppercase; margin-left: 6px; font-weight: 500; }

/* Entity Chips */
.chips-container { display: flex; flex-wrap: wrap; gap: 12px; }
.entity-chip {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 8px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-family: 'Helvetica Neue', sans-serif;
  color: var(--text-main);
}
.entity-chip .chip-type { font-family: 'Jost', sans-serif; font-size: 0.7rem; letter-spacing: 0.05em; color: var(--accent-gold); text-transform: uppercase; }
.entity-chip .chip-conf { font-size: 0.75rem; color: var(--text-muted); border-left: 1px solid var(--border-color); padding-left: 8px; }

/* Tooltips */
[data-tooltip] { position: relative; }
[data-tooltip]:hover::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--surface-color);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-family: 'Helvetica Neue', sans-serif;
  font-weight: 400;
  white-space: pre-wrap;
  width: max-content;
  max-width: 250px;
  z-index: 100;
  box-shadow: 0 10px 25px rgba(0,0,0,0.8);
  border: 1px solid var(--border-color);
  pointer-events: none;
  animation: fadeUp 0.2s ease forwards;
}
.tooltip-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: help;
  transition: all 0.2s;
  margin-left: 8px;
  vertical-align: middle;
}
.tooltip-icon:hover { background: var(--accent-gold); color: #000; }
.hero-instructions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 999px;
  cursor: help;
  margin-top: 16px;
  transition: all 0.2s;
}
.hero-instructions:hover { border-color: var(--accent-gold); }

/* Audio Controls */
.audio-section { margin-top: 24px; }
.audio-label { font-size: 0.75rem; letter-spacing: 0.1em; color: var(--text-muted); display: block; margin-bottom: 12px; }
.audio-row { display: flex; align-items: center; gap: 16px; }
.file-input { font-size: 0.85rem; }
.file-input::file-selector-button {
  background: var(--surface-color); border: 1px solid var(--border-color); padding: 8px 16px; color: var(--text-main); cursor: pointer; margin-right: 12px; font-family: 'Jost', sans-serif; letter-spacing: 0.05em; transition: all 0.2s; border-radius: 4px;
}
.file-input::file-selector-button:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.custom-audio { height: 40px; flex-grow: 1; filter: invert(1) hue-rotate(180deg); } /* Dark mode audio player hack */

/* Actions */
.pipeline-row { margin-top: 40px; display: flex; align-items: center; justify-content: space-between; padding-top: 24px; border-top: 1px solid var(--border-color); }
.btn-primary {
  background: var(--text-main);
  border: none;
  color: var(--bg-color);
  padding: 16px 32px;
  font-family: 'Jost', sans-serif;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 4px;
}
.btn-primary:hover { background: var(--accent-gold); color: #000; }

.checkbox-label { display: flex; align-items: center; gap: 12px; cursor: pointer; }
.checkbox-text { font-size: 0.75rem; letter-spacing: 0.1em; }
.checkbox-label input { width: 16px; height: 16px; accent-color: var(--accent-gold); }

.status-text { font-size: 0.85rem; margin-top: 16px; color: var(--text-muted); }

/* Footer */
.footer { padding: 40px; text-align: center; border-top: 1px solid var(--border-color); margin-top: 80px; }
.footer p { font-size: 0.75rem; letter-spacing: 0.1em; color: var(--text-muted); text-transform: uppercase; margin: 0; }

/* Animations */
.fade-in { animation: fadeIn 0.8s ease forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* Responsive */
@media (max-width: 1024px) { 
  .panel-grid { grid-template-columns: 1fr; } 
  .controls { flex-direction: column; align-items: flex-start; gap: 24px; }
}