/* ============================================
   WHATSAPP AI INTERVIEWER - PROFESSIONAL UI
   Inspired by: Prolific, Typeform, Useberry, Notion
   ============================================ */

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

:root {
  /* Color Palette - Inspired by Prolific */
  --primary-blue: #2563eb;
  --primary-blue-hover: #1d4ed8;
  --primary-blue-light: #dbeafe;
  
  --success-green: #10b981;
  --success-green-hover: #059669;
  --success-green-light: #d1fae5;
  
  --warning-yellow: #f59e0b;
  --warning-yellow-light: #fef3c7;
  
  --danger-red: #ef4444;
  --danger-red-hover: #dc2626;
  --danger-red-light: #fee2e2;
  
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
  font-family: var(--font-sans);
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */

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

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1 {
  font-size: 32px;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

h2 {
  font-size: 24px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: var(--spacing-sm);
}

p {
  font-size: 14px;
  color: var(--gray-600);
  line-height: 1.6;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover, button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active, button:active {
  transform: translateY(0);
}

.btn:disabled, button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* Button Variants */
.btn-primary, button[type="submit"] {
  background: var(--primary-blue);
  color: white;
}

.btn-primary:hover, button[type="submit"]:hover {
  background: var(--primary-blue-hover);
}

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

.btn-success:hover {
  background: var(--success-green-hover);
}

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

.btn-danger:hover {
  background: var(--danger-red-hover);
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

.btn-secondary:hover {
  background: var(--gray-200);
}

.back-btn {
  background: transparent;
  color: var(--gray-600);
  padding: var(--spacing-sm) var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--gray-200);
}

.back-btn:hover {
  background: var(--gray-50);
  color: var(--gray-900);
  border-color: var(--gray-300);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
}

/* Campaign Cards */
.campaign-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
  transition: all 0.2s ease;
  cursor: pointer;
}

.campaign-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-blue);
  transform: translateY(-2px);
}

.campaign-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: var(--spacing-xs);
}

.campaign-card p {
  font-size: 14px;
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
}

.campaign-meta {
  display: flex;
  gap: var(--spacing-md);
  font-size: 13px;
  color: var(--gray-500);
  margin-top: var(--spacing-md);
}

/* Interview Cards */
.interview-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
  transition: all 0.2s ease;
}

.interview-card:hover {
  border-color: var(--primary-blue);
  box-shadow: var(--shadow-sm);
}

.interview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);
  cursor: pointer;
  padding: var(--spacing-xs);
  margin: calc(-1 * var(--spacing-xs));
  border-radius: var(--radius-sm);
}

.interview-header:hover {
  background: var(--gray-50);
}

.phone-number {
  font-weight: 500;
  color: var(--gray-900);
  font-size: 14px;
}

.interview-meta {
  font-size: 13px;
  color: var(--gray-500);
  margin-top: var(--spacing-xs);
}

.expand-button {
  background: transparent;
  border: none;
  color: var(--gray-500);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.2s ease;
}

.expand-button:hover {
  color: var(--gray-700);
  transform: none;
  box-shadow: none;
}

.interview-content {
  animation: fadeIn 0.3s ease;
}

/* ============================================
   STATUS BADGES
   ============================================ */

.status-badge, .badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.status-active, .badge-active {
  background: var(--success-green-light);
  color: var(--success-green);
}

.status-paused, .badge-paused {
  background: var(--warning-yellow-light);
  color: var(--warning-yellow);
}

.status-draft, .badge-draft {
  background: var(--gray-100);
  color: var(--gray-600);
}

.status-completed, .badge-completed {
  background: var(--success-green-light);
  color: var(--success-green);
}

.status-in_progress, .badge-in-progress {
  background: var(--primary-blue-light);
  color: var(--primary-blue);
}

.status-invited, .badge-invited {
  background: var(--primary-blue-light);
  color: var(--primary-blue);
}

.status-declined, .badge-declined {
  background: var(--danger-red-light);
  color: var(--danger-red);
}

/* ============================================
   FORMS
   ============================================ */

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  transition: all 0.2s ease;
  background: white;
  color: var(--gray-900);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-400);
}

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

/* ============================================
   MODALS
   ============================================ */

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  animation: fadeIn 0.2s ease;
  overflow-y: auto;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.modal-content {
  background: white;
  margin: 5% auto;
  border-radius: var(--radius-xl);
  max-width: 800px;
  box-shadow: var(--shadow-xl);
  animation: slideUp 0.3s ease;
  position: relative;
}

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

.modal .close {
  position: absolute;
  top: var(--spacing-lg);
  right: var(--spacing-lg);
  font-size: 32px;
  font-weight: 300;
  color: var(--gray-400);
  cursor: pointer;
  transition: color 0.2s ease;
  line-height: 1;
}

.modal .close:hover {
  color: var(--gray-700);
}

/* Transcript Modal Specific */
.transcript, .summary {
  background: var(--gray-50);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-top: var(--spacing-md);
  font-size: 14px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 600px;
  overflow-y: auto;
}

.transcript {
  font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', 'Courier New', monospace;
  color: var(--gray-800);
}

.summary {
  color: var(--gray-700);
}

.summary h4 {
  color: var(--gray-900);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 16px;
  font-weight: 600;
}

.summary ul {
  padding-left: var(--spacing-lg);
  margin: var(--spacing-sm) 0;
}

.summary li {
  margin-bottom: var(--spacing-xs);
  color: var(--gray-700);
}

.summary strong {
  color: var(--gray-900);
  font-weight: 600;
}

/* ============================================
   TOAST NOTIFICATIONS (Microinteractions)
   ============================================ */

.toast {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background: var(--gray-900);
  color: white;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  font-size: 14px;
  font-weight: 500;
  z-index: 10000;
  animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s;
  pointer-events: none;
}

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

@keyframes fadeOut {
  to {
    opacity: 0;
  }
}

.toast.success {
  background: var(--success-green);
}

.toast.error {
  background: var(--danger-red);
}

/* ============================================
   LOADING STATES
   ============================================ */

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  color: var(--gray-500);
  font-size: 14px;
}

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-200);
  border-top-color: var(--primary-blue);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: var(--spacing-sm);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Button Loading State */
.btn.loading, button.loading {
  position: relative;
  color: transparent;
  pointer-events: none;
}

.btn.loading::after, button.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

/* ============================================
   CAMPAIGN HEADER
   ============================================ */

.campaign-header {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.campaign-header h1 {
  margin-bottom: var(--spacing-xs);
}

.campaign-header p {
  color: var(--gray-600);
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   SHAREABLE LINK SECTION
   ============================================ */

.shareable-link {
  background: var(--primary-blue-light);
  border: 1px solid var(--primary-blue);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.shareable-link label {
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-blue);
  display: block;
  margin-bottom: var(--spacing-sm);
}

.link-display {
  display: flex;
  gap: var(--spacing-sm);
}

.link-display input {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--primary-blue);
  border-radius: var(--radius-md);
  font-size: 13px;
  font-family: 'SF Mono', monospace;
  background: white;
}

/* ============================================
   EMPTY STATES
   ============================================ */

.no-interviews {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--gray-500);
  font-size: 14px;
}

/* ============================================
   SORT FILTER DROPDOWN
   ============================================ */

.sort-filter {
  position: relative;
}

.sort-button {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 14px;
  color: var(--gray-700);
  cursor: pointer;
  transition: all 0.2s ease;
}

.sort-button:hover {
  border-color: var(--gray-400);
  background: var(--gray-50);
  transform: none;
  box-shadow: var(--shadow-sm);
}

.sort-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 8px;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 1000;
  display: none;
  overflow: hidden;
}

.sort-dropdown.show {
  display: block;
  animation: fadeIn 0.15s ease;
}

.sort-dropdown button {
  width: 100%;
  padding: 12px 16px;
  background: white;
  border: none;
  text-align: left;
  font-size: 14px;
  color: var(--gray-700);
  cursor: pointer;
  transition: background 0.15s ease;
  display: block;
}

.sort-dropdown button:hover {
  background: var(--gray-50);
  transform: none;
  box-shadow: none;
}

.sort-dropdown button:active {
  background: var(--gray-100);
}

/* ============================================
   KEBAB MENU (3 dots dropdown) - FIXED
   ============================================ */

.kebab-menu {
  position: relative;
}

.kebab-button {
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--gray-500);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  line-height: 1;
}

.kebab-button:hover {
  background: var(--gray-100);
  color: var(--gray-700);
  transform: none;
  box-shadow: none;
}

.kebab-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 160px;
  z-index: 1000;
  display: none;
  overflow: hidden;
  margin-top: 4px;
}

.kebab-dropdown.show {
  display: block;
  animation: fadeIn 0.15s ease;
}

.kebab-dropdown button {
  width: 100%;
  padding: 10px 16px;
  background: white;
  border: none;
  text-align: left;
  font-size: 14px;
  color: var(--gray-700);
  cursor: pointer;
  transition: background 0.15s ease;
  display: block;
}

.kebab-dropdown button:hover {
  background: var(--gray-50);
  transform: none;
  box-shadow: none;
}

.kebab-dropdown button:active {
  background: var(--gray-100);
}

.kebab-dropdown hr {
  margin: 0;
  border: none;
  border-top: 1px solid var(--gray-200);
}

/* ============================================
   QUESTION INPUTS (Campaign Creation)
   ============================================ */

.question-inputs-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}

.question-input-wrapper {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.question-input-wrapper > div:first-child {
  display: flex;
  gap: 4px;
  align-items: center;
}

.question-input-wrapper input.question-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s ease;
}

.question-input-wrapper input.question-input:focus {
  outline: none;
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px var(--primary-blue-light);
}

.media-upload-btn {
  padding: 8px;
  background: transparent;
  color: var(--gray-500);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.media-upload-btn:hover {
  background: var(--gray-50);
  color: var(--gray-700);
  border-color: var(--gray-400);
  transform: none;
  box-shadow: none;
}

.media-upload-btn:active {
  background: var(--gray-100);
}

.question-input-wrapper .remove-btn {
  padding: 8px;
  background: transparent;
  color: var(--gray-500);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: 16px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.question-input-wrapper .remove-btn:hover {
  background: var(--danger-red-light);
  color: var(--danger-red);
  border-color: var(--danger-red);
  transform: none;
  box-shadow: none;
}

.media-preview {
  width: 100%;
  margin-top: 4px;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
  .container {
    padding: var(--spacing-md);
  }
  
  h1 {
    font-size: 24px;
  }
  
  h2 {
    font-size: 20px;
  }
  
  .modal-content {
    margin: 10% var(--spacing-md);
    max-width: 100%;
  }
  
  .toast {
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    left: var(--spacing-md);
  }
}

/* ============================================
   HOVER & FOCUS IMPROVEMENTS
   ============================================ */

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-blue-hover);
  text-decoration: underline;
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-blue);
  outline-offset: 2px;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}