/* ==========================================================================
   GHL Custom Menu Link - Design System (Dark Theme Nativo)
   Web 10X — Telefonía Telnyx, WhatsApp WAHA & Monetización Stripe México
   ========================================================================== */

:root {
  /* Color Palette (GHL Dark Native) */
  --bg-primary: #111827;
  --bg-secondary: #1F2937;
  --bg-tertiary: #374151;
  --bg-hover: #4B5563;
  
  /* Accent Colors */
  --accent-primary: #10B981;    /* Emerald Green */
  --accent-primary-hover: #059669;
  --accent-secondary: #3B82F6;  /* Royal Blue */
  --accent-whatsapp: #25D366;   /* WhatsApp Green */
  --accent-sms: #F59E0B;        /* SMS Amber */
  --accent-danger: #EF4444;     /* Red */
  
  /* Text Colors */
  --text-primary: #F9FAFB;
  --text-secondary: #9CA3AF;
  --text-muted: #6B7280;
  
  /* Borders & Shadows */
  --border-color: #374151;
  --border-radius: 10px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
  
  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header & Top Bar */
.app-header {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.brand-info h1 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

.brand-info p {
  font-size: 12px;
  color: var(--text-secondary);
}

.header-status {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent-primary);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--accent-primary);
  box-shadow: 0 0 8px var(--accent-primary);
}

/* Tabs Navigation */
.nav-tabs {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 24px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.tab-button {
  background: none;
  border: none;
  color: var(--text-secondary);
  padding: 14px 18px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.tab-button:hover {
  color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
}

.tab-button.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.tab-badge {
  background-color: var(--bg-tertiary);
  color: var(--text-secondary);
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 10px;
}

/* Main Container */
.main-container {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.tab-content {
  display: none;
  animation: fadeIn 0.25s ease-in-out;
}

.tab-content.active {
  display: block;
}

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

/* Chat Layout (Inbox Unificado) */
.chat-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 20px;
  height: calc(100vh - 170px);
  min-height: 550px;
}

.chat-sidebar {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
}

.channel-filter {
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  gap: 6px;
}

.filter-btn {
  flex: 1;
  padding: 8px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}

.filter-btn.active {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--accent-secondary);
}

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

.chat-item {
  padding: 14px;
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background 0.2s;
}

.chat-item:hover, .chat-item.active {
  background-color: var(--bg-tertiary);
}

.chat-item-info h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.chat-item-info p {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

.channel-tag {
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
}

.channel-tag.whatsapp {
  background-color: rgba(37, 211, 102, 0.2);
  color: var(--accent-whatsapp);
}

.channel-tag.sms {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--accent-sms);
}

/* Chat Main Box */
.chat-window {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  display: flex;
  flex-direction: column;
}

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

.chat-messages-container {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.message-bubble {
  max-width: 65%;
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 13px;
  position: relative;
}

.message-bubble.incoming {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
  align-self: flex-start;
  border-bottom-left-radius: 2px;
}

.message-bubble.outgoing {
  background-color: var(--accent-primary-hover);
  color: #ffffff;
  align-self: flex-end;
  border-bottom-right-radius: 2px;
}

.message-meta {
  font-size: 10px;
  opacity: 0.75;
  margin-top: 4px;
  text-align: right;
}

.chat-input-box {
  padding: 14px 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 12px;
}

.chat-input-box input {
  flex: 1;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
}

.chat-input-box input:focus {
  border-color: var(--accent-primary);
}

.btn-send {
  background-color: var(--accent-primary);
  color: #fff;
  border: none;
  padding: 10px 18px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-send:hover {
  background-color: var(--accent-primary-hover);
}

/* Cards & Grid Layouts for DIDs, Compliance, Billing */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--accent-primary);
  margin-bottom: 4px;
}

.card-desc {
  font-size: 12px;
  color: var(--text-secondary);
}

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

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
}

.form-control:focus {
  border-color: var(--accent-primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

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

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

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
}