:root {
  /* Legal Design System - Modern Palette */
  --legal-navy: #002366;       /* Primary Brand Color */
  --legal-graphite: #222222;   /* Primary Text */
  --legal-royal: #4169e1;      /* Accents/Focus */
  --legal-gold: #d4af37;       /* Premium Details */
  --legal-bg: #f0f2f5;         /* Page Background */
  --legal-card: #ffffff;       /* Card Background */
  --legal-border: #e2e8f0;     /* Borders */
  --legal-muted: #64748b;      /* Secondary Text */
  --legal-success: #10b981;    /* Success State */
  --legal-danger: #ef4444;     /* Error State */
  
  /* Semantic Variables Mapped to Design System */
  --bg: var(--legal-bg);
  --fg: var(--legal-graphite);
  --card-bg: var(--legal-card);
  --border-color: var(--legal-border);
  --primary: var(--legal-navy);
  --accent: var(--legal-royal);
  --muted: var(--legal-muted);
}

* {
  box-sizing: border-box;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px; /* Slightly smaller for density */
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--legal-navy);
  margin-top: 0;
  font-weight: 600;
  letter-spacing: -0.02em;
}

h1 { font-size: 1.8rem; margin-bottom: 1.5rem; }
h2 { font-size: 1.5rem; margin-bottom: 1.2rem; }
h3 { font-size: 1.25rem; margin-bottom: 1rem; }

a {
  color: var(--legal-royal);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--legal-navy);
  text-decoration: underline;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Header & Navigation */
.header {
  background: var(--legal-navy);
  color: white;
  height: 64px;
  width: 100%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 1.5rem;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.brand {
  font-family: 'Playfair Display', serif; /* Legal feel */
  font-weight: 700;
  font-size: 1.5rem;
  color: white;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  letter-spacing: 0.02em;
}

.brand:hover {
  text-decoration: none;
  color: var(--legal-gold);
}

.nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav a {
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  padding: 0.5rem 0;
  position: relative;
  transition: all 0.3s ease;
}

.nav a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--legal-gold);
  transition: width 0.3s ease;
}

.nav a:hover, .nav a.active {
  color: white;
}

.nav a:hover::after, .nav a.active::after {
  width: 100%;
}

.nav-divider {
  height: 24px;
  width: 1px;
  background-color: rgba(255,255,255,0.2);
  margin: 0 0.5rem;
}

.btn-nav-action {
  background: var(--legal-gold);
  color: var(--legal-navy);
  padding: 0.5rem 1.2rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.btn-nav-action:hover {
  background: #f0c44b;
  color: var(--legal-navy);
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.btn-nav-action::after {
  display: none; /* No underline for button */
}

/* Components */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.card h2 {
  font-size: 1.1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.8rem;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-size: 0.9rem;
  text-decoration: none;
  gap: 0.5rem;
}

.btn:hover { text-decoration: none; }

.btn-primary {
  background: var(--legal-navy);
  color: white;
}

.btn-primary:hover {
  background: #001a4d;
  box-shadow: 0 2px 4px rgba(0,35,102,0.2);
}

.btn-secondary {
  background: white;
  border: 1px solid var(--border-color);
  color: var(--fg);
}

.btn-secondary:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.btn-danger {
  background: #fee2e2;
  color: #991b1b;
}

.btn-danger:hover {
  background: #fecaca;
}

/* Forms */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background: white;
  color: var(--fg);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--legal-royal);
  box-shadow: 0 0 0 3px rgba(65, 105, 225, 0.1);
}

label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 500;
  color: var(--legal-navy);
  font-size: 0.9rem;
}

.form-group {
  margin-bottom: 1rem;
}

/* Tables */
table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin: 1rem 0;
}

th {
  background: #f8fafc;
  color: var(--legal-navy);
  font-weight: 600;
  text-align: left;
  padding: 0.8rem 1rem;
  border-bottom: 2px solid var(--border-color);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: #f8fafc;
}

/* Utilities */
.text-muted { color: var(--muted); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.flex { display: flex; gap: 1rem; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.5rem; }

/* Alerts */
.alert {
  padding: 0.8rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.alert-info { background: #eff6ff; color: #1e40af; border: 1px solid #dbeafe; }
.alert-success { background: #ecfdf5; color: #065f46; border: 1px solid #d1fae5; }
.alert-error { background: #fef2f2; color: #991b1b; border: 1px solid #fee2e2; }

/* Dashboard Specifics */
.hero-card {
  background: linear-gradient(135deg, var(--legal-navy) 0%, #1a3a7a 100%);
  color: white;
  padding: 3rem 2rem;
  border-radius: 12px;
  margin-bottom: 2rem;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.hero-title {
  color: white;
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero-text {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
}

.btn-hero-primary {
  background: var(--legal-gold);
  color: var(--legal-navy);
  border: none;
  padding: 0.8rem 1.5rem;
  font-weight: 600;
}

.btn-hero-secondary {
  background: rgba(255,255,255,0.1);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.8rem 1.5rem;
}

.stat-card {
  text-align: center;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--legal-navy);
  line-height: 1;
  margin: 0.5rem 0;
}

.stat-label {
  color: var(--muted);
  font-size: 0.9rem;
  text-transform: uppercase;
}

/* Full Width Layout */
.full-width-main {
  width: 100%;
  max-width: 100%;
  padding: 0;
  margin: 0;
  background: white;
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
}

/* Chat Interface Integration */
/* Ensure Chat Viewport takes full height without footer */
body:has(.chat-interface) {
  overflow: hidden;
  background: var(--legal-bg);
}

body:has(.chat-interface) .footer {
  display: none;
}

body:has(.chat-interface) .main.container,
body:has(.chat-interface) main {
  max-width: 100%;
  padding: 0;
  height: calc(100vh - 60px); /* Adjust for header height */
  display: flex;
  flex-direction: column;
}

.chat-interface {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: white;
  max-width: 1000px;
  margin: 0 auto;
  width: 100%;
  box-shadow: 0 0 20px rgba(0,0,0,0.05);
  border-left: 1px solid var(--legal-border);
  border-right: 1px solid var(--legal-border);
}

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.8rem 1.5rem;
  border-bottom: 1px solid var(--legal-border);
  background: white;
}

.chat-header-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.avatar-circle {
  width: 40px;
  height: 40px;
  background: var(--legal-navy);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.chat-header h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--legal-navy);
  font-weight: 600;
}

.status-indicator {
  font-size: 0.8rem;
  color: var(--legal-success);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.status-indicator .dot {
  width: 8px;
  height: 8px;
  background: var(--legal-success);
  border-radius: 50%;
}

.security-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--muted);
  background: #f8fafc;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  border: 1px solid var(--legal-border);
}

.header-actions {
  display: flex;
  gap: 0.5rem;
  margin-left: auto;
  margin-right: 1rem;
}

.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  padding: 0.4rem;
  border-radius: 0.4rem;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.action-btn:hover {
  background: rgba(0,0,0,0.05);
  color: var(--legal-navy);
}

/* Split View Layout */
.chat-viewport.split-view {
  display: flex;
  flex-direction: row;
  gap: 0;
  padding: 0;
  overflow: hidden; /* Main container doesn't scroll, columns do */
}

.split-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.col-left {
  border-right: 1px solid var(--legal-border);
  background: #fff;
  resize: horizontal;
  overflow: hidden; /* Required for resize */
  min-width: 300px;
  max-width: 70%;
  z-index: 1; /* Ensure handle is clickable */
}

.col-right {
  background: #f8fafc;
}

.col-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--legal-border);
  background: white;
  font-weight: 600;
  color: var(--legal-navy);
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.col-content {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  scroll-behavior: smooth;
}

/* User Messages in Left Column */
.col-left .message-wrapper.user {
  justify-content: flex-start; /* Align left in its own column */
}
.col-left .message-bubble {
  background: #f1f5f9;
  color: var(--legal-graphite);
  border: 1px solid transparent;
  max-width: 100%; /* Use full width of column if needed, or keeping bubble look */
  border-radius: 0.5rem;
}
.col-left .message-meta { color: var(--muted); }

/* AI Messages in Right Column */
.col-right .message-wrapper.ai {
  justify-content: flex-start;
}
.col-right .message-bubble {
  max-width: 95%;
  background: white;
  box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

/* Input Area in Left Column */
.chat-input-area.fixed-bottom {
  border-top: 1px solid var(--legal-border);
  padding: 1rem;
  background: white;
}

.chat-input-area.fixed-bottom .input-container {
  max-width: 100%;
  margin: 0;
}

.chat-input-area.fixed-bottom .input-wrapper {
  flex-direction: column;
  align-items: stretch;
  gap: 0.5rem;
  padding: 0.5rem;
  background: white;
  border: 1px solid var(--legal-border);
}

.chat-input-area.fixed-bottom textarea {
  min-height: 80px;
  padding: 0.5rem;
  font-size: 1rem;
  line-height: 1.5;
}

.chat-input-area.fixed-bottom .attach-btn,
.chat-input-area.fixed-bottom .send-btn {
  align-self: flex-end;
}

/* Responsive */
@media (max-width: 768px) {
  .chat-viewport.split-view {
    flex-direction: column;
  }
  .col-left {
    border-right: none;
    border-bottom: 1px solid var(--legal-border);
    height: 40vh; /* Fixed height for input area on mobile? */
  }
  .col-right {
    height: 60vh;
  }
  .chat-input-area.fixed-bottom textarea {
    min-height: 50px;
  }
}

.message-wrapper {
  display: flex;
  width: 100%;
}

.message-wrapper.user { justify-content: flex-end; }
.message-wrapper.ai { justify-content: flex-start; }

.message-bubble {
  max-width: 80%;
  padding: 1rem 1.5rem;
  border-radius: 1rem;
  position: relative;
  line-height: 1.6;
  font-size: 0.95rem;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.message-wrapper.user .message-bubble {
  background: var(--legal-navy);
  color: white;
  border-bottom-right-radius: 0.2rem;
}

.message-wrapper.ai .message-bubble {
  background: #f8fafc;
  color: var(--legal-graphite);
  border: 1px solid var(--legal-border);
  border-bottom-left-radius: 0.2rem;
}

.message-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.4rem;
  font-size: 0.7rem;
  opacity: 0.8;
}

.message-wrapper.user .message-meta { color: rgba(255,255,255,0.7); }
.message-wrapper.ai .message-meta { color: var(--muted); }

.chat-input-area {
  padding: 1.5rem;
  background: white;
  border-top: 1px solid var(--legal-border);
}

.input-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.input-wrapper {
  display: flex;
  align-items: flex-end;
  gap: 0.8rem;
  background: #f8fafc;
  padding: 0.8rem;
  border-radius: 1rem;
  border: 1px solid var(--legal-border);
  transition: all 0.2s;
}

.input-wrapper:focus-within {
  border-color: var(--legal-royal);
  box-shadow: 0 0 0 3px rgba(65, 105, 225, 0.1);
  background: white;
}

.input-wrapper textarea {
  background: transparent;
  border: none;
  padding: 0;
  box-shadow: none;
}

.input-wrapper textarea:focus {
  box-shadow: none;
}

.attach-btn, .send-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 0.5rem;
  color: var(--muted);
  transition: all 0.2s;
}

.attach-btn:hover { color: var(--legal-navy); background: rgba(0,0,0,0.05); }

.send-btn { background: var(--legal-navy); color: white; }
.send-btn:hover { background: var(--legal-royal); }

/* Typing Indicator & Markdown */
.typing-indicator { padding: 1rem; display: flex; gap: 0.4rem; margin-left: 1rem; }
.typing-indicator .dot { width: 8px; height: 8px; background: #cbd5e1; border-radius: 50%; animation: bounce 1.4s infinite ease-in-out both; }
.typing-indicator .dot:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator .dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce { 0%, 80%, 100% { transform: scale(0); } 40% { transform: scale(1); } }

.message-content pre { background: #1e1e1e; color: #d4d4d4; padding: 1rem; border-radius: 0.5rem; overflow-x: auto; }
.message-content code { background: rgba(0,0,0,0.05); padding: 0.2rem 0.4rem; border-radius: 0.3rem; font-family: monospace; }
.message-content h3 { font-size: 1.1rem; margin-top: 1rem; }

/* Login/Register Specifics */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 120px);
}

.auth-card {
  width: 100%;
  max-width: 400px;
  background: white;
  padding: 2.5rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--legal-border);
}

.auth-title {
  text-align: center;
  font-size: 1.8rem;
  color: var(--legal-navy);
  margin-bottom: 2rem;
}

.footer {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--legal-border);
  background: white;
}