/* CSS Reset & Variables */
:root {
  /* High-end Dark Charcoal/Slate Palette */
  --bg-dark: #090a0f;
  --bg-sidebar: #0f1115;
  --bg-chat: #13161b;
  --bg-card: #15181d;
  --bg-input: #1b1e24;
  
  --border-color: rgba(255, 255, 255, 0.05);
  --border-focus: hsl(28, 100%, 48%);
  
  --text-main: #f3f4f6;
  --text-muted: #8e9cae;
  --text-dark: #12151a;
  
  /* Brand Orange Accent Colors */
  --primary: hsl(30, 100%, 47%); /* Leadzer Orange (#ee7600) */
  --primary-glow: rgba(238, 118, 0, 0.15);
  --primary-gradient: linear-gradient(135deg, hsl(30, 100%, 47%) 0%, hsl(18, 100%, 43%) 100%);
  
  --accent: #5e6b7c;
  --accent-glow: rgba(94, 107, 124, 0.1);
  
  /* System States */
  --success: hsl(145, 65%, 48%);
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: hsl(38, 92%, 50%);
  --warning-bg: rgba(245, 158, 11, 0.1);
  --danger: hsl(352, 74%, 57%);
  --danger-bg: rgba(239, 68, 68, 0.1);
  
  --sidebar-width: 290px;
  --panel-width: 330px;
  
  --transition-smooth: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-body);
  height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* App Container Layout */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
  background-image: 
    radial-gradient(at 0% 0%, rgba(238, 118, 0, 0.02) 0px, transparent 40%),
    radial-gradient(at 100% 100%, rgba(142, 156, 174, 0.02) 0px, transparent 40%);
}

/* Left Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.sidebar-header {
  padding: 24px 20px 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.logo-img {
  height: 28px;
  max-width: 100%;
  object-fit: contain;
  display: block;
}

/* Action Sidebar Buttons */
.sidebar-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  width: 100%;
  margin-top: 4px;
}

/* Primary Button Styling */
.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition-smooth);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--primary-glow);
  filter: brightness(1.05);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Accent Outline Button (e.g. Upload Leads) */
.btn-accent {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: var(--transition-smooth);
}

.btn-accent:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--text-muted);
}

.btn-accent:active {
  background: rgba(255, 255, 255, 0.02);
}

/* Secondary Actions */
.btn-secondary {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  padding: 10px 16px;
  border-radius: 6px;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition-smooth);
  width: 100%;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--primary);
}

/* Search Box Container */
.search-box-container {
  padding: 0 20px 16px 20px;
}

.search-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  display: flex;
  align-items: center;
  padding: 8px 12px;
  gap: 8px;
  transition: var(--transition-smooth);
}

.search-box:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.search-box input {
  background: transparent;
  border: none;
  color: var(--text-main);
  width: 100%;
  outline: none;
  font-family: var(--font-body);
  font-size: 13px;
}

.search-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Conversations List */
.conversations-list {
  flex: 1;
  overflow-y: auto;
  padding: 0 8px 20px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.list-placeholder {
  color: var(--text-muted);
  text-align: center;
  padding: 40px 20px;
  font-size: 13px;
}

.conversation-item {
  display: flex;
  align-items: center;
  padding: 12px;
  border-radius: 6px;
  cursor: pointer;
  transition: var(--transition-smooth);
  gap: 12px;
  position: relative;
}

.conversation-item:hover {
  background: rgba(255, 255, 255, 0.02);
}

.conversation-item.active {
  background: rgba(238, 118, 0, 0.04);
}

/* Left vertical brand orange indicator bar */
.conversation-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background-color: var(--primary);
  border-radius: 0 2px 2px 0;
}

.avatar {
  width: 36px;
  height: 36px;
  border-radius: 4px;
  background: #1d2127;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 13px;
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.conversation-item.active .avatar {
  background: var(--primary-gradient);
  border-color: transparent;
  color: #fff;
}

.conv-details {
  flex: 1;
  min-width: 0;
}

.conv-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2px;
}

.conv-name {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-time {
  font-size: 10px;
  color: var(--text-muted);
  flex-shrink: 0;
}

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

/* Center Chat Area */
.chat-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--bg-chat);
}

.chat-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-sidebar);
}

.active-contact-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.active-contact-info h2 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
}

.subtext {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 1px;
}

/* WebSockets Connected Pill */
.status-indicator {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
}

.status-indicator::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-indicator.online {
  color: var(--success);
}
.status-indicator.online::before {
  background-color: var(--success);
  box-shadow: 0 0 6px var(--success);
}

.status-indicator.offline {
  color: var(--danger);
}
.status-indicator.offline::before {
  background-color: var(--danger);
  box-shadow: 0 0 6px var(--danger);
}

/* Messages Feed */
.messages-feed {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.feed-placeholder {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  color: var(--text-muted);
}

.welcome-box {
  max-width: 360px;
  text-align: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 32px 24px;
  border-radius: 8px;
}

.welcome-icon {
  margin-bottom: 16px;
  color: var(--primary);
  display: flex;
  justify-content: center;
  align-items: center;
}

.welcome-box h3 {
  font-family: var(--font-heading);
  color: var(--text-main);
  margin-bottom: 8px;
  font-size: 18px;
  font-weight: 500;
}

.welcome-box p {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
}

/* Chat Message Bubbles */
.message-bubble {
  max-width: 60%;
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: fadeInMessage 0.15s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes fadeInMessage {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-bubble.outbound {
  align-self: flex-end;
}

.message-bubble.inbound {
  align-self: flex-start;
}

.message-content {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.45;
  word-break: break-word;
}

.message-bubble.outbound .message-content {
  background: var(--primary-gradient);
  color: #fff;
  border-bottom-right-radius: 2px;
  box-shadow: 0 1px 4px rgba(238, 118, 0, 0.1);
}

.message-bubble.inbound .message-content {
  background: #1f242d;
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-bottom-left-radius: 2px;
}

.message-attachments {
  margin-bottom: 4px;
}

.mms-image {
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  max-height: 180px;
  object-fit: cover;
  display: block;
}

.message-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--text-muted);
}

.message-bubble.outbound .message-meta {
  justify-content: flex-end;
}

/* Status Badges */
.status-badge {
  font-size: 9px;
  padding: 1px 5px;
  border-radius: 3px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.status-badge.queued {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
}

.status-badge.sending {
  background: var(--warning-bg);
  color: var(--warning);
}

.status-badge.sent {
  background: var(--success-bg);
  color: var(--success);
}

.status-badge.failed {
  background: var(--danger-bg);
  color: var(--danger);
  cursor: help;
}

/* Chat Input Field/Composer Area */
.chat-composer-container {
  padding: 16px 24px 20px 24px;
  border-top: 1px solid var(--border-color);
  background: var(--bg-sidebar);
}

.chat-composer {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  gap: 8px;
  align-items: flex-end;
  transition: var(--transition-smooth);
}

.chat-composer:focus-within {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 2px var(--primary-glow);
}

.composer-inputs {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chat-composer textarea {
  background: transparent;
  border: none;
  color: var(--text-main);
  outline: none;
  font-family: var(--font-body);
  font-size: 13.5px;
  resize: none;
  max-height: 100px;
  padding: 4px;
  line-height: 1.4;
}

.mms-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.03);
  padding-top: 8px;
  margin-top: 2px;
}

.attachment-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.mms-input-row input {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-muted);
  font-size: 11.5px;
  width: 100%;
}

.mms-input-row input:focus {
  color: var(--text-main);
}

/* Outbound Send Circle Button */
.btn-send {
  background: var(--primary-gradient);
  color: #fff;
  border: none;
  width: 34px;
  height: 34px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-smooth);
  flex-shrink: 0;
  box-shadow: 0 1px 4px rgba(238, 118, 0, 0.1);
}

.btn-send:hover {
  transform: scale(1.03);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.btn-send:disabled {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.2);
  cursor: not-allowed;
  box-shadow: none;
}

/* Right Stats Panel */
.dashboard-panel {
  width: var(--panel-width);
  min-width: var(--panel-width);
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow-y: auto;
  padding: 24px;
  gap: 24px;
}

.panel-section {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-section h3 {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 8px;
}

/* Dashboard Statistics Cards Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.stat-card {
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.01);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
}

.stat-value {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 600;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
}

/* Thin Top Colored Accents on Stats Cards */
.card-queued::after { background-color: var(--text-muted); }
.card-sending::after { background-color: var(--warning); }
.card-sent::after { background-color: var(--success); }
.card-failed::after { background-color: var(--danger); }

.card-queued .stat-value { color: var(--text-main); }
.card-sending .stat-value { color: var(--warning); }
.card-sent .stat-value { color: var(--success); }
.card-failed .stat-value { color: var(--danger); }

.animate-pulse {
  animation: pulse 1.2s infinite;
}

@keyframes pulse {
  0% { opacity: 1; }
  50% { opacity: 0.6; }
  100% { opacity: 1; }
}

/* Form Settings Layout */
.settings-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.form-group label {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="password"],
.form-group textarea {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 12.5px;
  outline: none;
  transition: var(--transition-smooth);
}

.form-group textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
}

.form-help {
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 1px;
}

/* Range intervals */
.range-container {
  display: flex;
  align-items: center;
  gap: 10px;
}

.range-container input[type="range"] {
  flex: 1;
  accent-color: var(--primary);
}

.range-val {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 11px;
  background: rgba(255, 255, 255, 0.05);
  padding: 3px 6px;
  border-radius: 3px;
  min-width: 54px;
  text-align: center;
}

.settings-status {
  font-size: 11px;
  text-align: center;
  margin-top: 2px;
}

.settings-status.success {
  color: var(--success);
}
.settings-status.error {
  color: var(--danger);
}

/* Webhook Info Card */
.webhook-info-card {
  background: rgba(238, 118, 0, 0.02);
  border: 1px dashed rgba(238, 118, 0, 0.15);
  border-radius: 6px;
  padding: 14px;
}

.webhook-info-card h3 {
  border-bottom: none;
  padding-bottom: 0;
  color: var(--text-main);
  font-size: 13px;
}

.webhook-desc {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: 4px;
}

.webhook-url-box {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 6px 10px;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  gap: 8px;
}

.webhook-url-box code {
  font-family: monospace;
  font-size: 10px;
  color: var(--text-main);
  word-break: break-all;
  user-select: all;
  flex: 1;
}

.btn-copy {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2px;
  transition: var(--transition-smooth);
}

.btn-copy:hover {
  color: var(--primary);
  transform: scale(1.05);
}

.btn-copy.copied {
  color: var(--success);
}

/* Premium Modals styling */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(4, 5, 8, 0.8);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 100;
}

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

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  width: 100%;
  max-width: 400px;
  border-radius: 8px;
  padding: 24px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
  transform: scale(0.96);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.open .modal-content {
  transform: scale(1);
}

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

.modal-header h2 {
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: 500;
  color: var(--text-main);
}

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

.modal-close:hover {
  color: var(--text-main);
}

.btn-block {
  width: 100%;
  margin-top: 12px;
}

/* Lead Upload CSV zone */
.file-drop-zone {
  border: 1.5px dashed var(--border-color);
  border-radius: 6px;
  padding: 28px 16px;
  text-align: center;
  background: rgba(255, 255, 255, 0.01);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
}

.file-drop-zone:hover, .file-drop-zone.dragover {
  border-color: var(--primary);
  background: rgba(238, 118, 0, 0.02);
}

.drop-zone-icon {
  color: var(--text-muted);
  animation: float 2.5s ease-in-out infinite;
}

.file-drop-zone:hover .drop-zone-icon {
  color: var(--primary);
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-4px); }
  100% { transform: translateY(0px); }
}

.browse-link {
  color: var(--primary);
  text-decoration: underline;
  font-weight: 500;
}

.selected-file-info {
  font-size: 12px;
  color: var(--success);
  font-weight: 500;
  margin-top: 4px;
}

.upload-preview {
  padding: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  margin-bottom: 16px;
}

.preview-stats {
  font-size: 12px;
  color: var(--text-main);
  text-align: center;
}

/* Char counter estimations */
.composer-meta-row {
  display: flex;
  justify-content: flex-end;
  padding: 0 4px;
  margin-top: 2px;
}

.template-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
  width: 100%;
}

.char-counter {
  font-size: 10.5px;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-weight: 400;
  transition: var(--transition-smooth);
}

.char-counter.warning {
  color: var(--warning);
}

.char-counter.danger {
  color: var(--danger);
  font-weight: 500;
}