/* ================================================
   WADirect — Clean White Design
   ================================================ */

:root {
  /* Colors - White theme with green accents */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-card: #ffffff;
  
  --color-text: #1a1a1a;
  --color-text-secondary: #6b7280;
  --color-text-muted: #9ca3af;
  
  --color-primary: #25D366; /* WhatsApp Green */
  --color-primary-dark: #128C7E;
  --color-primary-light: #dcfce7;
  
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;
  
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  
  /* Typography */
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ================================================
   Reset & Base
   ================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea {
  font-family: inherit;
  font-size: 1rem;
}

img {
  max-width: 100%;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-green {
  color: var(--color-primary);
}

/* ================================================
   Pages
   ================================================ */
.page {
  display: none !important;
}

.page.active {
  display: block !important;
}

.page.active.auth-page {
  display: flex !important;
}

/* ================================================
   Header
   ================================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border-light);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.5rem;
  font-weight: 700;
}

.logo-icon {
  font-size: 1.75rem;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-link {
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition-fast);
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ================================================
   Buttons
   ================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  border: 2px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-text {
  color: var(--color-text-secondary);
  padding: 0.5rem 1rem;
}

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

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

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

.btn-danger {
  background: var(--color-danger);
  color: white;
}

.btn-danger:hover {
  opacity: 0.9;
}

.btn-lg {
  padding: 0.875rem 1.75rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ================================================
   Hero Section
   ================================================ */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-lg);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.hero-stats {
  display: flex;
  gap: var(--space-2xl);
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

/* Phone Mockup */
.hero-image {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 320px;
  background: #1a1a1a;
  border-radius: 40px;
  padding: 12px;
  box-shadow: var(--shadow-xl);
}

.phone-screen {
  background: #ece5dd;
  border-radius: 30px;
  overflow: hidden;
  height: 500px;
}

.wa-header {
  background: var(--color-primary-dark);
  color: white;
  padding: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.wa-avatar {
  font-size: 1.5rem;
}

.wa-name {
  font-weight: 600;
}

.wa-messages {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.wa-message {
  max-width: 85%;
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  position: relative;
}

.wa-message.incoming {
  background: white;
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.wa-message.outgoing {
  background: #dcf8c6;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.wa-message p {
  font-size: 0.9rem;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.wa-time {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-align: right;
  display: block;
}

/* ================================================
   Sections
   ================================================ */
section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ================================================
   Features Section
   ================================================ */
.features {
  background: var(--color-bg-secondary);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-fast);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
}

.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

/* ================================================
   How it Works
   ================================================ */
.steps {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  max-width: 280px;
}

.step-number {
  width: 48px;
  height: 48px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.step-content p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

.step-arrow {
  font-size: 2rem;
  color: var(--color-border);
}

/* ================================================
   API Section
   ================================================ */
.api-section {
  background: var(--color-bg-secondary);
}

.api-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.api-info h2 {
  margin-bottom: var(--space-lg);
}

.api-info p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.api-features {
  list-style: none;
  margin-bottom: var(--space-xl);
}

.api-features li {
  padding: var(--space-sm) 0;
  color: var(--color-text-secondary);
}

.api-code {
  background: #1e1e1e;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.code-header {
  background: #2d2d2d;
  padding: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.code-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27c93f; }

.code-title {
  margin-left: var(--space-md);
  color: #999;
  font-size: 0.875rem;
}

.api-code pre {
  padding: var(--space-xl);
  overflow-x: auto;
}

.api-code code {
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.875rem;
  color: #e6e6e6;
  line-height: 1.8;
}

.code-keyword { color: #569cd6; }
.code-string { color: #ce9178; }

/* ================================================
   Pricing Section
   ================================================ */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.pricing-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  position: relative;
}

.pricing-card.popular {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

.popular-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: white;
  padding: 0.25rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--color-border-light);
}

.pricing-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.price-amount {
  font-size: 2.5rem;
  font-weight: 800;
}

.price-period {
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: var(--space-xl);
}

.pricing-features li {
  padding: var(--space-sm) 0;
  color: var(--color-text-secondary);
}

/* ================================================
   CTA Section
   ================================================ */
.cta {
  background: var(--color-primary);
  color: white;
  text-align: center;
}

.cta-content h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.cta-content p {
  opacity: 0.9;
  margin-bottom: var(--space-xl);
}

/* ================================================
   Footer
   ================================================ */
.footer {
  background: var(--color-text);
  color: white;
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: var(--space-xl);
}

.footer-brand p {
  color: rgba(255,255,255,0.6);
  margin-top: var(--space-sm);
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  color: rgba(255,255,255,0.4);
  font-size: 0.875rem;
}

/* ================================================
   Auth Modal
   ================================================ */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 1.5rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.auth-modal-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-modal-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
}

.auth-tabs {
  display: flex;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: var(--space-xl);
}

.auth-tab {
  flex: 1;
  padding: var(--space-sm) var(--space-md);
  font-weight: 500;
  color: var(--color-text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.auth-tab.active {
  background: white;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

/* Modal auth forms - hidden by default */
.modal .auth-form {
  display: none;
}

.modal .auth-form.active {
  display: block;
}

/* Auth page forms - always visible */
.auth-page .auth-form {
  display: block;
}

.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-group textarea {
  min-height: 100px;
  resize: vertical;
}

.warning-box {
  background: #fef3c7;
  border: 1px solid #f59e0b;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  color: #92400e;
  margin-bottom: var(--space-lg);
}

.key-display {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.key-display code {
  font-family: monospace;
  font-size: 0.875rem;
  word-break: break-all;
}

/* ================================================
   Dashboard with Sidebar
   ================================================ */
.dashboard-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: white;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform 0.3s ease;
}

.sidebar-header {
  padding: var(--space-xl);
  border-bottom: 1px solid var(--color-border);
}

.sidebar-header .logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-lg) 0;
  overflow-y: auto;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.sidebar-link:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.sidebar-link.active {
  background: rgba(37, 211, 102, 0.1);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.sidebar-icon {
  font-size: 1.25rem;
  width: 24px;
  text-align: center;
}

.sidebar-link .bi {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}

/* Modern Sidebar (ai-sidebar style) */
.ai-sidebar {
  width: 260px;
  background: #ffffff;
  border-right: 1px solid var(--color-border);
  padding: 1.5rem;
  position: fixed;
  height: 100vh;
  overflow-y: auto;
  z-index: 102;
}

.ai-sidebar .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: 2rem;
}

.ai-sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.ai-sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 0.95rem;
}

.ai-sidebar-link:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.ai-sidebar-link.active {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 500;
}

.ai-sidebar-link .bi {
  font-size: 1.1rem;
  width: 20px;
}

.ai-sidebar-divider {
  height: 1px;
  background: var(--color-border);
  margin: 1rem 0;
}

/* Dashboard Header */
.dashboard-header {
  position: fixed;
  top: 0;
  left: 260px;
  right: 0;
  height: 60px;
  background: white;
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  z-index: 101;
}

.dashboard-header .sidebar-toggle {
  display: none;
}

.dashboard-header .mobile-logo {
  display: none;
}

.header-user {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.header-user .user-info-block {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.header-user .user-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: #1a1a2e;
}

.header-user .user-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-user .user-balance {
  font-weight: 600;
  font-size: 0.8rem;
  color: #25D366;
  background: rgba(37, 211, 102, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.header-user .user-tariff {
  font-size: 0.75rem;
  color: #0088cc;
  background: rgba(0, 136, 204, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

.header-user .user-tariff-expires {
  font-size: 0.65rem;
  color: #888;
}

.header-user .btn-text {
  color: #666;
  font-weight: 500;
}

.header-user .btn-text:hover {
  color: #dc3545;
}

.sidebar-toggle {
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
}

.sidebar-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: all 0.3s ease;
}

/* Dashboard Main */
.dashboard-main {
  flex: 1;
  margin-left: 260px;
  margin-top: 60px;
  padding: 0.5rem var(--space-2xl) var(--space-2xl);
  min-height: calc(100vh - 60px);
  background: var(--color-bg-secondary);
}

.dashboard-section {
  display: none;
}

.dashboard-section.active {
  display: block;
}

.section-header-dash {
  margin-bottom: var(--space-lg);
}

.section-header-dash h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: var(--space-sm);
}

.section-header-dash p {
  color: var(--color-text-secondary);
}

/* Sidebar Mobile */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.active {
    transform: translateX(0);
  }
  
  .dashboard-header {
    left: 0;
    justify-content: space-between;
  }
  
  .dashboard-header .sidebar-toggle {
    display: flex;
  }
  
  .dashboard-header .mobile-logo {
    display: flex;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  
  .dashboard-main {
    margin-left: 0;
    margin-top: 60px;
    padding: 0.5rem var(--space-lg) var(--space-lg);
  }
  
  .sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
  }
  
  .sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.stat-card {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  transition: all var(--transition-fast);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
}

.stat-card .stat-icon {
  font-size: 2rem;
}

.stat-card .stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.stat-card .stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.stat-info {
  display: flex;
  flex-direction: column;
}

/* Quick Actions */
.quick-actions h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-lg);
}

.actions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.action-card {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  text-align: left;
  transition: all var(--transition-fast);
}

.action-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.action-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: var(--space-md);
}

.action-title {
  font-weight: 600;
  display: block;
  margin-bottom: var(--space-xs);
}

.action-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

/* WhatsApp Card */
.whatsapp-card {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
}

.wa-state {
  display: flex;
  gap: var(--space-2xl);
  align-items: flex-start;
}

.wa-state.hidden {
  display: none;
}

.wa-qr-area {
  width: 280px;
  flex-shrink: 0;
}

.qr-placeholder {
  width: 280px;
  height: 280px;
  background: var(--color-bg-secondary);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

.qr-icon {
  font-size: 3rem;
  opacity: 0.5;
}

.qr-placeholder p {
  color: var(--color-text-muted);
  text-align: center;
  padding: 0 var(--space-lg);
  font-size: 0.9rem;
}

.qr-image {
  width: 280px;
  height: 280px;
  border-radius: var(--radius-lg);
  background: white;
}

.qr-image.hidden {
  display: none;
}

.wa-instructions h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-lg);
}

.wa-instructions ol {
  margin-left: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.wa-instructions li {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

#wa-connected {
  flex-direction: column;
  align-items: center;
  text-align: center;
  width: 100%;
}

.wa-connected-info {
  margin-bottom: var(--space-2xl);
}

.connected-icon {
  font-size: 4rem;
  display: block;
  margin-bottom: var(--space-md);
}

.wa-connected-info h2 {
  color: var(--color-success);
  margin-bottom: var(--space-sm);
}

.connected-phone {
  font-size: 1.5rem;
  font-weight: 600;
  font-family: monospace;
}

.wa-test-form {
  width: 100%;
  max-width: 500px;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  text-align: left;
}

.wa-test-form h3 {
  margin-bottom: var(--space-lg);
}

.wa-test-form textarea.readonly-message {
  background: #f5f5f5;
  color: var(--color-text);
  cursor: not-allowed;
  resize: none;
  min-height: 140px;
  line-height: 1.5;
}

/* API Keys List */
.api-keys-list {
  margin-top: var(--space-xl);
}

.api-key-card {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.api-key-info {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.key-icon {
  font-size: 1.5rem;
}

.key-name {
  font-weight: 600;
}

.key-prefix {
  font-family: monospace;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
}

.key-stats {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.btn-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-bg-secondary);
  transition: all var(--transition-fast);
}

.btn-icon:hover {
  background: var(--color-danger);
  color: white;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-3xl);
  color: var(--color-text-muted);
}

.empty-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.empty-subtitle {
  display: block;
  font-size: 0.9rem;
  margin-top: var(--space-sm);
  color: var(--color-text-muted);
}

/* Message List */
.loading {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-muted);
}

.message-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
  transition: box-shadow var(--transition-fast);
}

.message-item:hover {
  box-shadow: var(--shadow-md);
}

.message-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.message-phone {
  font-weight: 600;
  color: var(--color-text);
}

.msg-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.msg-badge-test {
  background: #dbeafe;
  color: #1e40af;
}

.msg-badge-api {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.message-status {
  margin-left: auto;
  font-size: 0.9rem;
}

.message-status-pending { color: var(--color-warning); }
.message-status-sent { color: var(--color-primary); }
.message-status-delivered { color: var(--color-success); }
.message-status-read { color: #3b82f6; }
.message-status-failed { color: var(--color-danger); }

.message-content {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: var(--space-sm) 0;
  word-break: break-word;
  white-space: pre-wrap;
}

.message-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border-light);
  font-size: 0.8rem;
}

.message-date {
  color: var(--color-text-muted);
}

.message-error {
  color: var(--color-danger);
  font-size: 0.75rem;
}

/* Docs Guide */
.docs-guide {
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.docs-guide h2 {
  margin-bottom: var(--space-lg);
  color: var(--color-primary-dark);
}

.guide-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.guide-step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.step-num {
  width: 32px;
  height: 32px;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content h4 {
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.step-content p {
  color: var(--color-text-secondary);
  margin: 0;
}

/* Limits */
.docs-limits {
  background: #fff8e6;
  border: 1px solid #ffc107;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.docs-limits h2 {
  margin-bottom: var(--space-sm);
  color: #856404;
}

.docs-limits .limits-info {
  color: #856404;
  margin-bottom: var(--space-lg);
}

.limits-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.limits-table th,
.limits-table td {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.limits-table th {
  background: #f8f9fa;
  font-weight: 600;
  color: var(--color-text);
}

.limits-table tbody tr:last-child td {
  border-bottom: none;
}

.limits-table tbody tr:hover {
  background: #f8f9fa;
}

/* API Reference */
.docs-api {
  margin-bottom: var(--space-2xl);
}

.docs-api h2 {
  margin-bottom: var(--space-lg);
}

.api-endpoint {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.endpoint-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.method {
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.method.post {
  background: #dcfce7;
  color: #166534;
}

.method.get {
  background: #dbeafe;
  color: #1e40af;
}

.endpoint-header code {
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--color-text);
}

.api-endpoint > p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-md);
}

.api-endpoint h4 {
  font-size: 0.85rem;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--color-text-secondary);
}

.params-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin-bottom: var(--space-sm);
}

.params-table td {
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.params-table td:first-child {
  width: 150px;
}

.params-table code {
  background: var(--color-bg-secondary);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

/* Docs Cards */
.docs-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.doc-card {
  background: white;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  overflow: hidden;
}

.doc-card h3 {
  margin-bottom: var(--space-md);
  font-size: 1rem;
}

.doc-card pre {
  background: #1e1e1e;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  overflow-x: auto;
  max-width: 100%;
  margin: 0;
}

.doc-card code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.75rem;
  color: #e6e6e6;
  line-height: 1.5;
  white-space: pre;
  display: block;
}

.api-endpoint pre {
  background: #1e1e1e;
  border-radius: var(--radius-md);
  padding: var(--space-md);
  overflow-x: auto;
  margin: 0;
}

.api-endpoint pre code {
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.8rem;
  color: #e6e6e6;
  line-height: 1.5;
}

/* ================================================
   Toast
   ================================================ */
#toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  animation: slideIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-danger); }

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ================================================
   Responsive
   ================================================ */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-subtitle {
    margin: 0 auto var(--space-xl);
  }
  
  .hero-buttons {
    justify-content: center;
  }
  
  .hero-stats {
    justify-content: center;
  }
  
  .hero-image {
    display: none;
  }
  
  .features-grid,
  .pricing-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .api-content {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .actions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .docs-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }
  
  .nav-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .header-actions .btn-text,
  .header-actions .btn-primary {
    display: none;
  }
}

@media (max-width: 768px) {
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .hero-buttons {
    flex-direction: column;
  }
  
  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-xl);
  }
  
  .features-grid,
  .pricing-cards,
  .stats-grid,
  .actions-grid {
    grid-template-columns: 1fr;
  }
  
  .steps {
    flex-direction: column;
    gap: var(--space-xl);
  }
  
  .step-arrow {
    transform: rotate(90deg);
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-xl);
    text-align: center;
  }
  
  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-md);
  }
  
  .wa-state {
    flex-direction: column;
    align-items: center;
  }
  
  .modal-content {
    margin: var(--space-md);
    max-height: calc(100vh - 2rem);
  }
  
  .nav-dashboard {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background: white;
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
  }
  
  .nav-dashboard.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .user-info-block {
    display: flex;
  }
  
  .user-info-block .user-name {
    font-size: 0.85rem;
  }
  
  .user-info-block .user-meta {
    gap: 4px;
  }
  
  .user-info-block .user-balance,
  .user-info-block .user-tariff {
    font-size: 0.7rem;
    padding: 1px 6px;
  }
  
  .user-info-block .user-tariff-expires {
    display: none;
  }
  
  .guide-step {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .params-table td:first-child {
    width: auto;
  }
  
  .endpoint-header {
    flex-wrap: wrap;
  }
  
  .endpoint-header code {
    font-size: 0.8rem;
    word-break: break-all;
  }
}

/* Auth Pages */
.auth-page {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f8fdf8 0%, #e8f5e9 100%);
  padding: var(--space-xl);
}

.auth-container {
  width: 100%;
  max-width: 440px;
}

.auth-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
  text-decoration: none;
}

.auth-logo .logo-icon {
  font-size: 2rem;
}

.auth-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text);
}

.auth-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.auth-header h1 {
  font-size: 1.75rem;
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.auth-header p {
  color: var(--color-text-secondary);
  margin: 0;
}

.auth-form .form-group {
  margin-bottom: var(--space-lg);
}

.auth-form label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
  color: var(--color-text);
}

.auth-form input,
.auth-form select {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  transition: border-color var(--transition-fast);
}

.auth-form input:focus,
.auth-form select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.auth-form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23666' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

.auth-footer {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.auth-footer p {
  color: var(--color-text-secondary);
  margin: 0;
}

.auth-footer a {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .auth-page {
    padding: var(--space-md);
  }
  
  .auth-card {
    padding: var(--space-xl);
  }
  
  .auth-header h1 {
    font-size: 1.5rem;
  }
}

/* Bot Section */
.bot-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.bot-status-card,
.bot-knowledge-card,
.bot-test-card,
.bot-calendar-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
}

/* Google Calendar Card */
.bot-calendar-card h2 {
  margin: 0 0 var(--space-sm) 0;
}

.calendar-info {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.calendar-status {
  text-align: center;
  padding: var(--space-lg);
}

.calendar-status-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.calendar-status-icon.connected {
  font-size: 2rem;
}

.calendar-status p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.calendar-connected-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  justify-content: center;
  margin-bottom: var(--space-md);
}

.calendar-connected-info strong {
  display: block;
  color: var(--color-primary);
}

.calendar-connected-info p {
  margin: 0;
  font-size: 0.9rem;
}

#calendar-select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  background: white;
}

.btn-danger-outline {
  background: transparent;
  color: #dc3545;
  border: 1px solid #dc3545;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-danger-outline:hover {
  background: #dc3545;
  color: white;
}

.bot-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.bot-toggle-info {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.bot-icon {
  font-size: 2.5rem;
}

.bot-toggle-info h3 {
  margin: 0 0 var(--space-xs) 0;
  font-size: 1.25rem;
}

.bot-toggle-info p {
  margin: 0;
  color: var(--color-text-secondary);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 32px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: 0.3s;
  border-radius: 32px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 24px;
  width: 24px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(28px);
}

/* Knowledge Card */
.bot-knowledge-card h2,
.bot-test-card h2 {
  margin: 0 0 var(--space-sm) 0;
  font-size: 1.25rem;
}

.knowledge-info,
.test-info {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.bot-knowledge-card textarea {
  width: 100%;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.9rem;
  line-height: 1.5;
  resize: vertical;
}

.bot-knowledge-card textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* AI Assistant Select */
.ai-select-wrapper {
  position: relative;
  width: 100%;
}

.ai-select {
  width: 100%;
  padding: 1rem 3rem 1rem 1.25rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  background: white;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  transition: all 0.2s;
}

.ai-select:hover {
  border-color: var(--color-primary-light);
}

.ai-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.15);
}

.ai-select option {
  padding: 1rem;
  font-size: 1rem;
}

.ai-select-icon {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  pointer-events: none;
  font-size: 1.1rem;
}

/* Test Chat */
.test-chat {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.chat-messages {
  height: 300px;
  overflow-y: auto;
  padding: var(--space-lg);
  background: #f8f9fa;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.chat-message {
  max-width: 80%;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-lg);
  line-height: 1.4;
}

.chat-message.bot {
  background: white;
  border: 1px solid var(--color-border);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}

.chat-message.user {
  background: var(--color-primary);
  color: white;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}

.chat-message.loading {
  background: white;
  border: 1px solid var(--color-border);
  align-self: flex-start;
}

.chat-message.loading .message-text {
  display: flex;
  gap: 4px;
}

.chat-message.loading .dot {
  width: 8px;
  height: 8px;
  background: #999;
  border-radius: 50%;
  animation: bounce 1.4s infinite ease-in-out both;
}

.chat-message.loading .dot:nth-child(1) { animation-delay: -0.32s; }
.chat-message.loading .dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
  0%, 80%, 100% { transform: scale(0); }
  40% { transform: scale(1); }
}

.chat-input {
  display: flex;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: white;
  border-top: 1px solid var(--color-border);
}

.chat-input input {
  flex: 1;
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

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

.hidden {
  display: none !important;
}

/* ================================================
   WhatsApp Compact Layout (like Telegram)
   ================================================ */

.telegram-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .telegram-grid {
    grid-template-columns: 1fr;
  }
}

.tg-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.tg-card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tg-card-subtitle {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  margin: 0 0 1.5rem 0;
}

.tg-connected-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: #e8f5e9;
  padding: 1rem;
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.tg-connected-badge .connected-icon {
  font-size: 1.5rem;
}

.tg-connected-badge strong {
  display: block;
  font-size: 1rem;
}

.tg-connected-badge p {
  margin: 0;
  color: var(--color-success);
  font-weight: 500;
}

.tg-test-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.tg-test-row .tg-input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
}

.tg-test-row .tg-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.tg-api-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.tg-api-section h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tg-hint {
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  margin: 0 0 1rem 0;
}

.tg-key-display {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}

.tg-key-display code {
  font-family: 'Monaco', 'Menlo', monospace;
  font-size: 0.9rem;
  color: var(--color-text);
}

.tg-key-actions {
  display: flex;
  gap: 0.75rem;
}

/* Tabs */
.tg-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 0.5rem;
}

.tg-tab {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.tg-tab:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.tg-tab.active {
  background: var(--color-primary);
  color: white;
}

/* Code Blocks */
.tg-code-blocks {
  margin-bottom: 1.5rem;
}

.tg-code-block {
  display: none;
}

.tg-code-block.active {
  display: block;
}

.tg-code-block pre {
  background: #1e1e1e;
  color: #d4d4d4;
  padding: 1rem;
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: 0.8rem;
  margin: 0;
}

.tg-code-block code {
  font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
}

/* How It Works */
.tg-how-it-works {
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.tg-how-it-works h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.75rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text);
}

.tg-how-it-works ol {
  margin: 0;
  padding-left: 1.25rem;
}

.tg-how-it-works li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.25rem;
}

/* Compact variations */
.wa-qr-area.compact {
  margin-bottom: 1rem;
}

.qr-placeholder.compact {
  padding: 2rem;
}

.qr-placeholder.compact .qr-icon {
  font-size: 2.5rem;
}

.qr-placeholder.compact p {
  font-size: 0.9rem;
}

.wa-instructions.compact {
  text-align: left;
}

.wa-instructions.compact ol {
  margin: 0 0 1rem 0;
  padding-left: 1.25rem;
  font-size: 0.9rem;
}

.wa-instructions.compact li {
  margin-bottom: 0.25rem;
  color: var(--color-text-secondary);
}

/* Button variations */
.btn-danger-outline {
  background: transparent;
  border: 1px solid var(--color-danger);
  color: var(--color-danger);
}

.btn-danger-outline:hover {
  background: var(--color-danger);
  color: white;
}

/* WhatsApp Green Buttons */
.btn-wa-primary {
  background: #25D366;
  color: white;
}

.btn-wa-primary:hover {
  background: #128C7E;
}

/* WhatsApp Code Tabs */
.code-tab-wa {
  background: none;
  border: none;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.code-tab-wa:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text);
}

.code-tab-wa.active {
  background: #25D366;
  color: white;
}

.wa-code-example {
  display: none;
}

.wa-code-example.active {
  display: block;
}

/* Card styling for WhatsApp section */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.connection-status {
  text-align: center;
  padding: 2rem;
}

.connection-status .status-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  color: var(--color-text-muted);
}

.connection-status.status-connected .status-icon {
  color: var(--color-success);
}

.connection-status h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.connection-status p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.8125rem;
}