/* ==============================================================================
   Dental AI WhatsApp CRM: Production Design System & Stylesheet
   Modern Clinical Dark Aesthetic (Deep Navy, Slate, Medical Teal, Glassmorphism)
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Colors */
  --bg-primary: #090e17;
  --bg-secondary: #0f172a;
  --bg-card: rgba(18, 27, 46, 0.85);
  --bg-card-hover: rgba(28, 41, 68, 0.9);
  --bg-glass: rgba(15, 23, 42, 0.75);
  --border-color: rgba(51, 65, 85, 0.6);
  --border-focus: #0ea5e9;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Accents */
  --accent-cyan: #0ea5e9;
  --accent-cyan-glow: rgba(14, 165, 233, 0.25);
  --accent-teal: #14b8a6;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  --accent-indigo: #6366f1;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 25px -5px rgba(0,0,0,0.5), 0 8px 10px -6px rgba(0,0,0,0.5);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --sidebar-width: 260px;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  overflow-x: hidden;
  line-height: 1.5;
}

/* Glassmorphism helpers */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
}

/* App Layout */
#app-container {
  display: flex;
  width: 100vw;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 50;
  padding: 24px 16px;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding: 0 8px;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  box-shadow: 0 0 16px var(--accent-cyan-glow);
}

.brand-text h1 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.brand-text span {
  font-size: 11px;
  color: var(--accent-cyan);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.15), rgba(14, 165, 233, 0.05));
  color: var(--accent-cyan);
  border-left: 3px solid var(--accent-cyan);
  font-weight: 600;
}

.nav-item .icon {
  font-size: 18px;
  width: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-badge {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: var(--accent-rose);
  color: #fff;
  font-weight: 600;
}

.user-profile-section {
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #1e293b;
  border: 1px solid var(--accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-cyan);
}

.user-meta .name {
  font-size: 13px;
  font-weight: 600;
  color: #fff;
}

.user-meta .role {
  font-size: 11px;
  color: var(--text-muted);
}

.btn-logout {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 16px;
  transition: color 0.2s;
}

.btn-logout:hover {
  color: var(--accent-rose);
}

/* Main Content Area */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  padding: 28px 36px;
  min-height: 100vh;
  background: radial-gradient(circle at 10% 10%, rgba(14, 165, 233, 0.05) 0%, transparent 40%),
              radial-gradient(circle at 90% 80%, rgba(20, 184, 166, 0.03) 0%, transparent 40%);
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.page-title h2 {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-title p {
  font-size: 14px;
  color: var(--text-muted);
  margin-top: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Action Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  font-family: var(--font-body);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #0284c7);
  color: #fff;
  box-shadow: 0 4px 12px var(--accent-cyan-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(14, 165, 233, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--text-muted);
}

.btn-danger {
  background: var(--accent-rose);
  color: #fff;
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 600;
}

.badge-emergency {
  background: rgba(244, 63, 94, 0.2);
  color: #fda4af;
  border: 1px solid rgba(244, 63, 94, 0.4);
  animation: pulse-danger 2s infinite;
}

.badge-high {
  background: rgba(245, 158, 11, 0.2);
  color: #fde68a;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-normal {
  background: rgba(14, 165, 233, 0.15);
  color: #bae6fd;
}

.badge-success {
  background: rgba(16, 185, 129, 0.15);
  color: #a7f3d0;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-purple {
  background: rgba(99, 102, 241, 0.15);
  color: #c7d2fe;
}

@keyframes pulse-danger {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.02); }
}

/* Stats Metric Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.metric-card {
  padding: 20px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
  transform: translateY(-2px);
  border-color: rgba(14, 165, 233, 0.4);
}

.metric-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.metric-data h3 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}

.metric-data p {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

/* Data Tables */
.table-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
}

.table-header-bar {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.table-header-bar h3 {
  font-size: 16px;
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  background: rgba(15, 23, 42, 0.95);
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-color);
}

td {
  padding: 14px 18px;
  font-size: 14px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  color: var(--text-main);
}

tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Conversations Split View */
.chat-layout {
  display: grid;
  grid-template-columns: 320px 1fr 300px;
  gap: 20px;
  height: calc(100vh - 140px);
}

.conversations-sidebar {
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-thread-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
}

.chat-thread-item {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  cursor: pointer;
  transition: background 0.2s;
}

.chat-thread-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.chat-thread-item.active {
  background: rgba(14, 165, 233, 0.1);
  border-left: 3px solid var(--accent-cyan);
}

.thread-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.thread-name {
  font-weight: 600;
  font-size: 14px;
}

.thread-time {
  font-size: 11px;
  color: var(--text-dim);
}

.thread-preview {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Chat Main Pane */
.chat-window {
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.message-bubble {
  max-width: 75%;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.45;
  position: relative;
  word-wrap: break-word;
}

.message-patient {
  align-self: flex-start;
  background: #1e293b;
  color: #fff;
  border-bottom-left-radius: 4px;
  border: 1px solid rgba(255,255,255,0.08);
}

.message-assistant {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.25), rgba(20, 184, 166, 0.25));
  border: 1px solid rgba(14, 165, 233, 0.4);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.message-staff {
  align-self: flex-end;
  background: linear-gradient(135deg, #0ea5e9, #0284c7);
  color: #fff;
  border-bottom-right-radius: 4px;
}

.message-meta {
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: flex-end;
}

.chat-input-area {
  padding: 16px 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
}

.chat-input-area input {
  flex: 1;
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-body);
}

.chat-input-area input:focus {
  outline: none;
  border-color: var(--border-focus);
}

/* Patient Context Drawer */
.chat-context-panel {
  border-radius: var(--radius-lg);
  padding: 20px;
  overflow-y: auto;
}

.context-section {
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(51, 65, 85, 0.4);
}

.context-section h4 {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

/* Modal Dialogs */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  width: 90%;
  max-width: 520px;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-color);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: #0f172a;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 10px 14px;
  color: #fff;
  font-family: var(--font-body);
  font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
}

/* Toast Notification */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--accent-cyan);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 200;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

#toast.show {
  transform: translateY(0);
  opacity: 1;
}

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