/**
 * Portfolio Integrations - Widget Styles
 *
 * Responsive styles for all integration widgets:
 *   - Google login button & user display
 *   - Payment form
 *   - Floating chat widget
 *   - Social media share buttons
 *   - WhatsApp floating button
 *   - Toast notifications
 *   - Google Sheets data tables
 *
 * Design: Clean, modern, accessible. Uses CSS custom properties for theming.
 * Breakpoints: 480px (mobile), 768px (tablet), 1024px (desktop)
 */

/* ========================================================================
   CSS Custom Properties (Theme)
   ======================================================================== */

:root {
  /* Colors */
  --int-primary: #4f46e5;
  --int-primary-hover: #4338ca;
  --int-primary-light: #e0e7ff;
  --int-success: #10b981;
  --int-success-light: #d1fae5;
  --int-error: #ef4444;
  --int-error-light: #fee2e2;
  --int-info: #3b82f6;
  --int-info-light: #dbeafe;
  --int-warning: #f59e0b;

  /* Neutrals */
  --int-white: #ffffff;
  --int-gray-50: #f9fafb;
  --int-gray-100: #f3f4f6;
  --int-gray-200: #e5e7eb;
  --int-gray-300: #d1d5db;
  --int-gray-400: #9ca3af;
  --int-gray-500: #6b7280;
  --int-gray-600: #4b5563;
  --int-gray-700: #374151;
  --int-gray-800: #1f2937;
  --int-gray-900: #111827;

  /* Typography */
  --int-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --int-font-size-xs: 0.75rem;
  --int-font-size-sm: 0.875rem;
  --int-font-size-base: 1rem;
  --int-font-size-lg: 1.125rem;
  --int-font-size-xl: 1.25rem;

  /* Spacing */
  --int-space-1: 0.25rem;
  --int-space-2: 0.5rem;
  --int-space-3: 0.75rem;
  --int-space-4: 1rem;
  --int-space-5: 1.25rem;
  --int-space-6: 1.5rem;
  --int-space-8: 2rem;

  /* Border */
  --int-radius-sm: 0.25rem;
  --int-radius-md: 0.5rem;
  --int-radius-lg: 0.75rem;
  --int-radius-xl: 1rem;
  --int-radius-full: 9999px;

  /* Shadows */
  --int-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --int-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --int-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --int-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --int-transition-fast: 150ms ease;
  --int-transition-base: 250ms ease;
  --int-transition-slow: 350ms ease;

  /* Z-index layers */
  --int-z-widget: 40;
  --int-z-float: 50;
  --int-z-toast: 60;
  --int-z-overlay: 70;
}

/* ========================================================================
   1. Google Login Button & User Display
   ======================================================================== */

.integration-google-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--int-space-2);
  padding: var(--int-space-2) var(--int-space-4);
  background: var(--int-white);
  border: 1px solid var(--int-gray-300);
  border-radius: var(--int-radius-md);
  color: var(--int-gray-700);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--int-transition-fast);
  text-decoration: none;
  line-height: 1.5;
}

.integration-google-btn:hover {
  background: var(--int-gray-50);
  border-color: var(--int-gray-400);
}

.integration-google-btn:focus-visible {
  outline: 2px solid var(--int-primary);
  outline-offset: 2px;
}

.integration-google-btn svg,
.integration-google-btn img {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.integration-user-info {
  display: flex;
  align-items: center;
  gap: var(--int-space-3);
  padding: var(--int-space-2);
}

.integration-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--int-radius-full);
  object-fit: cover;
  border: 2px solid var(--int-gray-200);
}

.integration-user-name {
  font-weight: 600;
  font-size: var(--int-font-size-sm);
  color: var(--int-gray-800);
}

.integration-user-email {
  font-size: var(--int-font-size-xs);
  color: var(--int-gray-500);
}

/* ========================================================================
   2. Payment Form
   ======================================================================== */

.integration-payment-form {
  max-width: 480px;
  margin: 0 auto;
  padding: var(--int-space-6);
  background: var(--int-white);
  border: 1px solid var(--int-gray-200);
  border-radius: var(--int-radius-lg);
}

.integration-payment-form .form-group {
  margin-bottom: var(--int-space-4);
}

.integration-payment-form label {
  display: block;
  margin-bottom: var(--int-space-1);
  font-size: var(--int-font-size-sm);
  font-weight: 500;
  color: var(--int-gray-700);
}

.integration-payment-form input,
.integration-payment-form select,
.integration-payment-form textarea {
  width: 100%;
  padding: var(--int-space-2) var(--int-space-3);
  border: 1px solid var(--int-gray-300);
  border-radius: var(--int-radius-md);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-base);
  color: var(--int-gray-800);
  background: var(--int-white);
  transition: border-color var(--int-transition-fast);
  box-sizing: border-box;
}

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

.integration-payment-form input:invalid {
  border-color: var(--int-error);
}

.integration-payment-form .form-hint {
  display: block;
  margin-top: var(--int-space-1);
  font-size: var(--int-font-size-xs);
  color: var(--int-gray-500);
}

.integration-payment-form .form-error {
  display: block;
  margin-top: var(--int-space-1);
  font-size: var(--int-font-size-xs);
  color: var(--int-error);
}

.integration-payment-submit {
  display: block;
  width: 100%;
  padding: var(--int-space-3) var(--int-space-4);
  background: var(--int-primary);
  color: var(--int-white);
  border: none;
  border-radius: var(--int-radius-md);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--int-transition-fast);
  margin-top: var(--int-space-6);
}

.integration-payment-submit:hover:not(:disabled) {
  background: var(--int-primary-hover);
}

.integration-payment-submit:focus-visible {
  outline: 2px solid var(--int-primary);
  outline-offset: 2px;
}

.integration-payment-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.integration-payment-min-notice {
  text-align: center;
  font-size: var(--int-font-size-xs);
  color: var(--int-gray-500);
  margin-top: var(--int-space-2);
}

/* ========================================================================
   3. Floating Chat Widget
   ======================================================================== */

.integration-chat {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--int-z-float);
  font-family: var(--int-font-family);
}

.integration-chat--closed {
  display: none;
}

.integration-chat--open {
  display: flex;
  flex-direction: column;
  width: 380px;
  max-width: calc(100vw - 40px);
  height: 520px;
  max-height: calc(100vh - 40px);
  background: var(--int-white);
  border-radius: var(--int-radius-xl);
  border: 1px solid var(--int-gray-200);
  box-shadow: var(--int-shadow-xl);
  overflow: hidden;
  animation: integration-chat-slide-up var(--int-transition-base) ease-out;
}

@keyframes integration-chat-slide-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Chat Header */
.integration-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--int-space-4);
  background: var(--int-primary);
  color: var(--int-white);
  flex-shrink: 0;
}

.integration-chat-header-info {
  display: flex;
  align-items: center;
  gap: var(--int-space-3);
}

.integration-chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--int-radius-full);
  background: rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--int-font-size-lg);
  font-weight: 700;
  flex-shrink: 0;
}

.integration-chat-title {
  font-weight: 600;
  font-size: var(--int-font-size-base);
}

.integration-chat-status {
  font-size: var(--int-font-size-xs);
  opacity: 0.8;
}

.integration-chat-close {
  background: none;
  border: none;
  color: var(--int-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: var(--int-space-1);
  line-height: 1;
  border-radius: var(--int-radius-sm);
  transition: background var(--int-transition-fast);
}

.integration-chat-close:hover {
  background: rgba(255, 255, 255, 0.15);
}

.integration-chat-close:focus-visible {
  outline: 2px solid var(--int-white);
  outline-offset: 2px;
}

/* Chat Messages */
.integration-chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--int-space-4);
  display: flex;
  flex-direction: column;
  gap: var(--int-space-3);
  background: var(--int-gray-50);
}

.integration-chat-message {
  display: flex;
  max-width: 85%;
}

.integration-chat-message--user {
  align-self: flex-end;
}

.integration-chat-message--assistant {
  align-self: flex-start;
}

.integration-chat-bubble {
  padding: var(--int-space-2) var(--int-space-3);
  border-radius: var(--int-radius-lg);
  font-size: var(--int-font-size-sm);
  line-height: 1.5;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.integration-chat-message--user .integration-chat-bubble {
  background: var(--int-primary);
  color: var(--int-white);
  border-bottom-right-radius: var(--int-radius-sm);
}

.integration-chat-message--assistant .integration-chat-bubble {
  background: var(--int-white);
  color: var(--int-gray-800);
  border: 1px solid var(--int-gray-200);
  border-bottom-left-radius: var(--int-radius-sm);
}

/* Typing Indicator */
.integration-chat-typing {
  display: flex;
  gap: 4px;
  padding: var(--int-space-2) var(--int-space-4);
  background: var(--int-gray-50);
}

.integration-chat-typing-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--int-radius-full);
  background: var(--int-gray-400);
  animation: integration-typing-bounce 1.4s infinite both;
}

.integration-chat-typing-dot:nth-child(2) {
  animation-delay: 0.16s;
}

.integration-chat-typing-dot:nth-child(3) {
  animation-delay: 0.32s;
}

@keyframes integration-typing-bounce {
  0%, 80%, 100% {
    transform: scale(0.6);
    opacity: 0.4;
  }
  40% {
    transform: scale(1);
    opacity: 1;
  }
}

/* Chat Input */
.integration-chat-form {
  display: flex;
  align-items: center;
  gap: var(--int-space-2);
  padding: var(--int-space-3);
  border-top: 1px solid var(--int-gray-200);
  background: var(--int-white);
  flex-shrink: 0;
}

.integration-chat-input {
  flex: 1;
  padding: var(--int-space-2) var(--int-space-3);
  border: 1px solid var(--int-gray-300);
  border-radius: var(--int-radius-full);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
  color: var(--int-gray-800);
  background: var(--int-gray-50);
  outline: none;
  transition: border-color var(--int-transition-fast);
}

.integration-chat-input:focus {
  border-color: var(--int-primary);
  background: var(--int-white);
}

.integration-chat-input::placeholder {
  color: var(--int-gray-400);
}

.integration-chat-send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--int-primary);
  color: var(--int-white);
  border: none;
  border-radius: var(--int-radius-full);
  cursor: pointer;
  transition: background var(--int-transition-fast);
  flex-shrink: 0;
}

.integration-chat-send:hover {
  background: var(--int-primary-hover);
}

.integration-chat-send:focus-visible {
  outline: 2px solid var(--int-primary);
  outline-offset: 2px;
}

/* Chat Trigger Button (floating) */
[data-chat-trigger] {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: var(--int-z-float);
  width: 56px;
  height: 56px;
  border-radius: var(--int-radius-full);
  background: var(--int-primary);
  color: var(--int-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--int-shadow-lg);
  transition: all var(--int-transition-fast);
  font-size: 1.5rem;
}

[data-chat-trigger]:hover {
  background: var(--int-primary-hover);
  transform: scale(1.05);
}

[data-chat-trigger]:focus-visible {
  outline: 2px solid var(--int-primary);
  outline-offset: 4px;
}

/* ========================================================================
   4. Social Media Share Buttons
   ======================================================================== */

.social-share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--int-space-2);
  align-items: center;
}

.social-share-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--int-space-2);
  padding: var(--int-space-2) var(--int-space-3);
  border-radius: var(--int-radius-md);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
  font-weight: 500;
  text-decoration: none;
  color: var(--int-white);
  border: none;
  cursor: pointer;
  transition: all var(--int-transition-fast);
  line-height: 1.5;
}

.social-share-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.social-share-btn:focus-visible {
  outline: 2px solid var(--int-primary);
  outline-offset: 2px;
}

.social-share-btn__icon {
  width: 16px;
  height: 16px;
  display: inline-block;
}

.social-share-btn__label {
  white-space: nowrap;
}

/* Platform Colors */
.social-share-btn--twitter    { background: #1da1f2; }
.social-share-btn--facebook   { background: #1877f2; }
.social-share-btn--linkedin   { background: #0a66c2; }
.social-share-btn--pinterest  { background: #e60023; }
.social-share-btn--reddit     { background: #ff4500; }
.social-share-btn--whatsapp   { background: #25d366; }
.social-share-btn--telegram   { background: #0088cc; }
.social-share-btn--email      { background: var(--int-gray-600); }
.social-share-btn--hackernews { background: #ff6600; }
.social-share-btn--tumblr     { background: #35465c; }

/* Copy link feedback */
.integration-share-copied {
  background: var(--int-success) !important;
}

/* Icon-only variant (no label) */
.social-share-btn--icon-only {
  padding: var(--int-space-2);
}

.social-share-btn--icon-only .social-share-btn__label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

/* ========================================================================
   5. WhatsApp Floating Button
   ======================================================================== */

[data-whatsapp-float] {
  position: fixed;
  bottom: 90px;
  right: 20px;
  z-index: var(--int-z-float);
  width: 56px;
  height: 56px;
  border-radius: var(--int-radius-full);
  background: #25d366;
  color: var(--int-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--int-shadow-lg);
  transition: all var(--int-transition-fast);
  text-decoration: none;
}

[data-whatsapp-float]:hover {
  background: #128c7e;
  transform: scale(1.05);
}

[data-whatsapp-float]:focus-visible {
  outline: 2px solid #25d366;
  outline-offset: 4px;
}

/* Inline WhatsApp button */
[data-whatsapp-chat] {
  display: inline-flex;
  align-items: center;
  gap: var(--int-space-2);
  padding: var(--int-space-2) var(--int-space-4);
  background: #25d366;
  color: var(--int-white);
  border: none;
  border-radius: var(--int-radius-md);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--int-transition-fast);
}

[data-whatsapp-chat]:hover {
  background: #128c7e;
}

/* ========================================================================
   6. Toast Notifications
   ======================================================================== */

.integration-toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: var(--int-z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--int-space-2);
  max-width: 400px;
  pointer-events: none;
}

.integration-toast {
  padding: var(--int-space-3) var(--int-space-4);
  border-radius: var(--int-radius-md);
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
  font-weight: 500;
  line-height: 1.5;
  pointer-events: auto;
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--int-transition-base);
  box-shadow: var(--int-shadow-md);
}

.integration-toast--visible {
  opacity: 1;
  transform: translateX(0);
}

.integration-toast--success {
  background: var(--int-success-light);
  color: #065f46;
  border-left: 4px solid var(--int-success);
}

.integration-toast--error {
  background: var(--int-error-light);
  color: #991b1b;
  border-left: 4px solid var(--int-error);
}

.integration-toast--info {
  background: var(--int-info-light);
  color: #1e40af;
  border-left: 4px solid var(--int-info);
}

/* ========================================================================
   7. Google Sheets Data Table
   ======================================================================== */

[data-sheets-table] {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--int-font-family);
  font-size: var(--int-font-size-sm);
}

[data-sheets-table] thead {
  background: var(--int-gray-100);
}

[data-sheets-table] th {
  padding: var(--int-space-3);
  text-align: left;
  font-weight: 600;
  color: var(--int-gray-700);
  border-bottom: 2px solid var(--int-gray-200);
  white-space: nowrap;
}

[data-sheets-table] td {
  padding: var(--int-space-2) var(--int-space-3);
  border-bottom: 1px solid var(--int-gray-100);
  color: var(--int-gray-600);
}

[data-sheets-table] tbody tr:hover {
  background: var(--int-gray-50);
}

.integration-sheets-loading {
  opacity: 0.5;
  pointer-events: none;
}

.integration-sheets-loading::after {
  content: 'Loading...';
  display: block;
  text-align: center;
  padding: var(--int-space-4);
  color: var(--int-gray-400);
  font-style: italic;
}

/* ========================================================================
   Responsive Design
   ======================================================================== */

/* Mobile: < 480px */
@media (max-width: 479px) {
  .integration-chat--open {
    width: calc(100vw - 16px);
    height: calc(100vh - 16px);
    bottom: 8px;
    right: 8px;
    border-radius: var(--int-radius-lg);
  }

  .social-share-buttons {
    gap: var(--int-space-1);
  }

  .social-share-btn {
    padding: var(--int-space-1) var(--int-space-2);
    font-size: var(--int-font-size-xs);
  }

  .social-share-btn__label {
    display: none;
  }

  .integration-payment-form {
    padding: var(--int-space-4);
  }

  .integration-toast-container {
    left: 16px;
    right: 16px;
    max-width: none;
  }

  [data-whatsapp-float],
  [data-chat-trigger] {
    width: 48px;
    height: 48px;
    bottom: 16px;
    right: 16px;
  }

  [data-whatsapp-float] {
    bottom: 72px;
  }

  [data-sheets-table] {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  [data-sheets-table] th,
  [data-sheets-table] td {
    padding: var(--int-space-2);
    font-size: var(--int-font-size-xs);
  }
}

/* Tablet: 480px - 767px */
@media (min-width: 480px) and (max-width: 767px) {
  .integration-chat--open {
    width: 340px;
    height: 480px;
  }

  .integration-payment-form {
    max-width: 400px;
  }
}

/* Desktop: 768px+ */
@media (min-width: 768px) {
  .integration-chat--open {
    width: 400px;
    height: 560px;
  }

  .social-share-btn__label {
    display: inline;
  }
}

/* Large Desktop: 1024px+ */
@media (min-width: 1024px) {
  .integration-payment-form {
    max-width: 520px;
  }
}

/* ========================================================================
   Print Styles
   ======================================================================== */

@media print {
  .integration-chat,
  [data-chat-trigger],
  [data-whatsapp-float],
  .integration-toast-container,
  .social-share-buttons {
    display: none !important;
  }
}

/* ========================================================================
   Reduced Motion
   ======================================================================== */

@media (prefers-reduced-motion: reduce) {
  .integration-chat--open {
    animation: none;
  }

  .integration-chat-typing-dot {
    animation: none;
  }

  .integration-toast {
    transition: none;
  }

  .social-share-btn,
  [data-whatsapp-float],
  [data-chat-trigger] {
    transition: none;
  }

  .social-share-btn:hover,
  [data-whatsapp-float]:hover,
  [data-chat-trigger]:hover {
    transform: none;
  }
}

/* ========================================================================
   Dark Mode Support
   ======================================================================== */

@media (prefers-color-scheme: dark) {
  :root {
    --int-white: #1f2937;
    --int-gray-50: #111827;
    --int-gray-100: #1f2937;
    --int-gray-200: #374151;
    --int-gray-300: #4b5563;
    --int-gray-400: #6b7280;
    --int-gray-500: #9ca3af;
    --int-gray-600: #d1d5db;
    --int-gray-700: #e5e7eb;
    --int-gray-800: #f3f4f6;
    --int-gray-900: #f9fafb;
    --int-success-light: #064e3b;
    --int-error-light: #7f1d1d;
    --int-info-light: #1e3a5f;
  }

  .integration-google-btn {
    background: var(--int-gray-100);
    border-color: var(--int-gray-300);
    color: var(--int-gray-700);
  }

  .integration-google-btn:hover {
    background: var(--int-gray-200);
  }

  .integration-payment-form {
    background: var(--int-gray-100);
    border-color: var(--int-gray-300);
  }

  .integration-chat--open {
    border-color: var(--int-gray-300);
  }

  .integration-chat-message--assistant .integration-chat-bubble {
    background: var(--int-gray-100);
    border-color: var(--int-gray-300);
    color: var(--int-gray-800);
  }
}