/* ==========================================================================
   ChatBot.com Design System Theme
   Inspired by ChatBot.com (doc/DESIGN-chatbot-com.md)
   ========================================================================== */

:root {
  --color-primary: #0066ff;
  --color-primary-hover: #0052cc;
  --color-primary-light: #eef5ff;
  --color-secondary: #ee0007;
  --color-secondary-hover: #cc0006;
  --color-secondary-light: #fff0f1;
  --color-success: #10b981;
  --color-success-light: #ecfdf5;
  --color-warning: #f59e0b;
  --color-warning-light: #fffbeb;
  --color-bg: #ffffff;
  --color-bg-secondary: #f6f6f7;
  --color-bg-card: #ffffff;
  --color-surface: #f9fafb;
  --color-text: #1b1b20;
  --color-text-secondary: #666666;
  --color-text-muted: #9ca3af;
  --color-border: #eaeaea;
  --color-border-hover: #d1d5db;
  --color-dark: #0f0f10;

  --radius-xs: 6px;
  --radius-sm: 8px;
  --radius-btn: 10px;
  --radius-md: 12px;
  --radius-card: 16px;
  --radius-lg: 20px;
  --radius-pill: 9999px;

  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-low: rgba(0, 0, 0, 0.04) 0px 4px 12px 0px;
  --shadow-mid: rgba(0, 0, 0, 0.08) 0px 8px 24px 0px;
  --shadow-high: rgba(0, 0, 0, 0.12) 0px 16px 36px 0px;

  --font-family: 'Plus Jakarta Sans', 'Colfax', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-secondary);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

h1 { font-size: 28px; line-height: 34px; }
h2 { font-size: 22px; line-height: 28px; }
h3 { font-size: 18px; line-height: 24px; }
h4 { font-size: 16px; line-height: 22px; }

/* Buttons from Design System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-btn);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  border: 1px solid transparent;
  outline: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--color-primary);
  color: #ffffff !important;
  border: 1px solid var(--color-primary);
  box-shadow: 0 2px 6px rgba(0, 102, 255, 0.25);
}
.btn-primary:hover {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

.btn-secondary {
  background-color: var(--color-secondary);
  color: #ffffff !important;
}
.btn-secondary:hover {
  background-color: var(--color-secondary-hover);
}

.btn-filled {
  background: #ffffff;
  color: var(--color-dark) !important;
  border: 1.5px solid #d1d5db;
}
.btn-filled:hover {
  background: #f9fafb;
  border-color: #9ca3af;
}

.btn-filled-dark {
  background: var(--color-dark);
  color: #ffffff !important;
  border: 1px solid var(--color-dark);
}
.btn-filled-dark:hover {
  background: #232328;
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
}
.btn-ghost:hover {
  background: rgba(0, 0, 0, 0.05);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 12px 24px;
  font-size: 16px;
  border-radius: var(--radius-btn);
}

/* Cards & Containers */
.cb-card {
  background: var(--color-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  padding: 24px;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.cb-card-hover:hover {
  box-shadow: var(--shadow-low);
  border-color: var(--color-border-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  line-height: 1;
}

.badge-blue { background: var(--color-primary-light); color: var(--color-primary); }
.badge-green { background: #dcfce7; color: #15803d; }
.badge-red { background: var(--color-secondary-light); color: var(--color-secondary); }
.badge-orange { background: #ffedd5; color: #c2410c; }
.badge-purple { background: #f3e8ff; color: #7e22ce; }
.badge-gray { background: #f3f4f6; color: #4b5563; }

/* Status Dot */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.status-dot.online { background-color: #10b981; box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2); }
.status-dot.offline { background-color: #ef4444; }
.status-dot.scan { background-color: #f59e0b; box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.2); }

/* Form Controls */
.form-group {
  margin-bottom: 18px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}
.form-label .required {
  color: var(--color-secondary);
}
.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text);
  background-color: #ffffff;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-btn);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}
.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}
.form-help {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

/* App Layout */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 40;
}

.sidebar-brand {
  padding: 20px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--color-border);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: var(--color-primary);
  color: #ffffff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 20px;
  box-shadow: 0 4px 10px rgba(0, 102, 255, 0.3);
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.5px;
}
.brand-name span {
  color: var(--color-primary);
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
  overflow-y: auto;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  padding: 10px 12px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-btn);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s ease;
  margin-bottom: 3px;
}

.nav-item:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.nav-item.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: 600;
}

.nav-item svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
  flex-shrink: 0;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
  background: #fafafa;
}

/* Main Content Area */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow-x: hidden;
}

.app-topbar {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 30;
}

.app-content {
  padding: 32px;
  flex: 1;
}

/* Chat View Split UI */
.chat-container {
  display: grid;
  grid-template-columns: 340px 1fr 320px;
  background: #ffffff;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
  height: calc(100vh - 150px);
  min-height: 600px;
  overflow: hidden;
}

.chat-sidebar {
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.chat-thread-container {
  display: flex;
  flex-direction: column;
  background: #fdfdfd;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.chat-info-sidebar {
  border-left: 1px solid var(--color-border);
  background: #ffffff;
  overflow-y: auto;
}

/* Chat Messages */
.chat-messages-body {
  flex: 1;
  min-height: 0;
  padding: 24px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #f8f9fb;
  scroll-behavior: smooth;
}

.chat-bubble-wrapper {
  display: flex;
  flex-direction: column;
  max-width: 75%;
}

.chat-bubble-wrapper.customer {
  align-self: flex-start;
}

.chat-bubble-wrapper.ai, .chat-bubble-wrapper.agent {
  align-self: flex-end;
}

.chat-bubble {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.45;
  position: relative;
  word-break: break-word;
}

.chat-bubble.customer {
  background: #ffffff;
  color: var(--color-text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-subtle);
}

.chat-bubble.ai {
  background: var(--color-primary);
  color: #ffffff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.2);
}

.chat-bubble.agent {
  background: var(--color-dark);
  color: #ffffff;
  border-bottom-right-radius: 4px;
  box-shadow: 0 4px 12px rgba(15, 15, 16, 0.15);
}

.chat-meta {
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.25s ease forwards;
}

/* Pulse indicator */
.pulse-badge {
  position: relative;
  display: inline-block;
}
.pulse-badge::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  border-radius: inherit;
  background: inherit;
  animation: pulse-ring 1.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}
@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.4); opacity: 0; }
  100% { transform: scale(0.95); opacity: 0; }
}

/* Responsive */
@media (max-width: 1024px) {
  .chat-container {
    grid-template-columns: 280px 1fr;
  }
  .chat-info-sidebar {
    display: none;
  }
}

@media (max-width: 768px) {
  .app-sidebar {
    display: none;
  }
  .app-content {
    padding: 16px;
  }
  .chat-container {
    grid-template-columns: 1fr;
  }
  .chat-sidebar {
    display: none;
  }
}