:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --sidebar-bg: #0f172a;
  --sidebar-text: #94a3b8;
  --sidebar-active: #ffffff;
  --sidebar-active-bg: #1e293b;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #0284c7;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
  font-size: 14px;
}

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

/* Sidebar */
aside.sidebar {
  width: 260px;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-right: 1px solid #1e293b;
}

.brand {
  padding: 24px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid #1e293b;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #6366f1, #4f46e5);
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: white;
  font-weight: 800;
  font-size: 18px;
}

.brand-info h1 {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.2px;
}

.brand-info span {
  font-size: 11px;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

nav.nav-menu {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
}

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

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

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid #1e293b;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.user-snippet {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #334155;
  color: #f1f5f9;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  flex-shrink: 0;
}

.user-meta {
  min-width: 0;
}

.user-name {
  font-size: 12px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 10px;
  color: #10b981;
}

.btn-logout {
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
}

.btn-logout:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.1);
}

/* Main Area */
main.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  height: 100vh;
  overflow: hidden;
  background: var(--bg-main);
}

header.topbar {
  height: 60px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  flex-shrink: 0;
}

.topbar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

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

.badge-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  background: #ecfdf5;
  color: #065f46;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge-live-dot {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

/* Views Container */
.view-container {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
}

/* Cards & Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
}

.stat-icon.purple { background: #e0e7ff; color: #4338ca; }
.stat-icon.amber { background: #fef3c7; color: #b45309; }
.stat-icon.rose { background: #ffe4e6; color: #e11d48; }
.stat-icon.green { background: #dcfce7; color: #15803d; }

.stat-value {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: 4px;
}

.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-main);
}

/* Tables */
.table-wrapper {
  overflow-x: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

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

table.data-table th {
  background: #f8fafc;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

table.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: #334155;
}

table.data-table tr:hover td {
  background: #f8fafc;
  cursor: pointer;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
}

.badge-product-MYSHUP { background: #fdf2f8; color: #be185d; border: 1px solid #fbcfe8; }
.badge-product-SOLEASPAY { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.badge-product-MYSOLEAS { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }

.badge-status-OPEN { background: #eff6ff; color: #1d4ed8; }
.badge-status-IN_PROGRESS { background: #fef3c7; color: #b45309; }
.badge-status-RESOLVED { background: #ecfdf5; color: #047857; }
.badge-status-CLOSED { background: #f1f5f9; color: #475569; }

.badge-priority-CRITICAL { background: #fee2e2; color: #b91c1c; font-weight: 700; }
.badge-priority-HIGH { background: #ffedd5; color: #c2410c; }
.badge-priority-NORMAL { background: #f1f5f9; color: #334155; }
.badge-priority-LOW { background: #f8fafc; color: #64748b; }

.badge-handler-AI { background: #f3e8ff; color: #7e22ce; }
.badge-handler-HUMAN { background: #dcfce7; color: #15803d; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary { background: #fff; border-color: var(--border); color: #334155; }
.btn-secondary:hover { background: #f8fafc; border-color: #cbd5e1; }

.btn-danger { background: #fee2e2; color: #dc2626; border-color: #fecaca; }
.btn-danger:hover { background: #fecaca; }

.btn-success { background: #dcfce7; color: #16a34a; border-color: #bbf7d0; }
.btn-success:hover { background: #bbf7d0; }

.btn-sm { padding: 5px 10px; font-size: 12px; border-radius: 6px; }

/* Filters toolbar */
.filters-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.input, .select {
  height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  font-size: 13px;
  color: var(--text-main);
  outline: none;
}

.input:focus, .select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.12);
}

/* Chat view */
.chat-layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: calc(100vh - 120px);
  overflow: hidden;
}

.chat-sidebar {
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-search {
  padding: 12px;
  border-bottom: 1px solid var(--border);
}

.chat-list {
  flex: 1;
  overflow-y: auto;
}

.chat-item {
  padding: 14px 16px;
  border-bottom: 1px solid #f1f5f9;
  cursor: pointer;
  transition: background 0.15s ease;
}

.chat-item:hover { background: #f8fafc; }
.chat-item.active { background: var(--primary-light); border-left: 3px solid var(--primary); }

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

.chat-item-title {
  font-weight: 600;
  font-size: 13px;
  color: var(--text-main);
}

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

.chat-main {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: #f8fafc;
}

.chat-main-header {
  padding: 14px 20px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.message-bubble {
  max-width: 70%;
  padding: 12px 16px;
  border-radius: 14px;
  font-size: 13px;
  line-height: 1.5;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.message-bubble.customer {
  align-self: flex-start;
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text-main);
}

.message-bubble.agent {
  align-self: flex-end;
  background: var(--primary);
  color: #fff;
}

.message-bubble.ai {
  align-self: flex-start;
  background: #f1f5f9;
  border: 1px solid #e2e8f0;
  color: #334155;
}

.message-author {
  font-size: 10px;
  font-weight: 700;
  margin-bottom: 4px;
  opacity: 0.8;
}

.message-time {
  font-size: 9px;
  margin-top: 4px;
  opacity: 0.7;
  text-align: right;
}

.chat-composer {
  padding: 14px 20px;
  background: #fff;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: flex-end;
}

.chat-composer textarea {
  flex: 1;
  min-height: 42px;
  max-height: 120px;
  resize: none;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  outline: none;
  font-family: inherit;
}

.chat-composer textarea:focus {
  border-color: var(--primary);
}

/* Modals & Drawers */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: grid;
  place-items: center;
  z-index: 999;
}

.modal-content {
  background: #fff;
  border-radius: var(--radius);
  width: min(540px, 92vw);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 700;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-muted);
}

.modal-body {
  padding: 22px;
}

.modal-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: #f8fafc;
}

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

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #334155;
  margin-bottom: 6px;
}

.form-group small {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Login Screen */
.login-wrap {
  position: fixed;
  inset: 0;
  background: linear-gradient(135deg, #0f172a, #1e293b);
  display: grid;
  place-items: center;
  z-index: 1000;
}

.login-card {
  width: min(440px, 92vw);
  background: #fff;
  border-radius: 16px;
  padding: 32px 28px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

.login-tabs {
  display: flex;
  background: #f1f5f9;
  border-radius: 10px;
  padding: 4px;
  margin: 20px 0;
}

.login-tab {
  flex: 1;
  text-align: center;
  padding: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.login-tab.active {
  background: #fff;
  color: var(--text-main);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.06);
}

.pin-keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.pin-key {
  height: 52px;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 20px;
  font-weight: 700;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: background 0.1s ease;
}

.pin-key:hover { background: #e2e8f0; }
.pin-key:active { transform: scale(0.96); }

/* Toast */
#toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: #0f172a;
  color: #fff;
  padding: 12px 20px;
  border-radius: 10px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
  font-size: 13px;
  font-weight: 500;
  display: none;
  z-index: 10000;
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}