/* Social Media Ostracism Research Paradigm - Complete Stylesheet */
/* Design System: Instagram-inspired 2020s modern design */

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

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

html {
  font-size: 16px;
  line-height: 1.6;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  background-color: #FAFAFA;
  color: #262626;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ============================================
   WARM NATURE BACKGROUND
   Soft golden-hour imagery to create a calming,
   non-clinical atmosphere for participants.
   ============================================ */

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -2;
  background: url('../img/bg-warm-flowers.jpg') center/cover no-repeat fixed;
  filter: blur(8px) saturate(0.85);
  transform: scale(1.05); /* prevent blur edge artifacts */
}

body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  background: linear-gradient(
    135deg,
    rgba(255, 248, 235, 0.88) 0%,
    rgba(255, 252, 245, 0.82) 30%,
    rgba(248, 245, 240, 0.85) 70%,
    rgba(255, 248, 235, 0.88) 100%
  );
}

/* Different backgrounds per page */
body.page-paradigm::before {
  background-image: url('../img/bg-white-flowers.jpg');
}

body.page-debriefing::before {
  background-image: url('../img/bg-field-soft.jpg');
  filter: blur(12px) saturate(0.7) brightness(1.1);
}

body.page-debriefing::after {
  background: linear-gradient(
    135deg,
    rgba(232, 255, 232, 0.85) 0%,
    rgba(245, 255, 245, 0.82) 50%,
    rgba(232, 255, 232, 0.85) 100%
  );
}

/* ============================================
   DESIGN SYSTEM VARIABLES
   ============================================ */

:root {
  /* Colors */
  --color-primary: #E1306C;
  --color-bg: #FAFAFA;
  --color-card: #FFFFFF;
  --color-text: #262626;
  --color-text-secondary: #8E8E8E;
  --color-success: #00C853;
  --color-border: #DBDBDB;
  --color-notification: #3897F0;
  --color-exclusion: #FF3B30;
  --color-inclusion: #34C759;
  --color-overinclusion: #FF9500;
  
  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  
  /* Border radius */
  --radius-sm: 6px;
  --radius: 12px;
  --radius-full: 50%;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.10);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition: all 0.2s ease;
  --transition-fast: all 0.1s ease;
}

/* ============================================
   UTILITY CLASSES (Tailwind-inspired)
   ============================================ */

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.table { display: table; }

/* Flex utilities */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1 1 0%; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--spacing-2); }
.gap-4 { gap: var(--spacing-4); }
.gap-6 { gap: var(--spacing-6); }

/* Grid utilities */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.grid-cols-6 { grid-template-columns: repeat(6, minmax(0, 1fr)); }

/* Spacing */
.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-1); }
.m-2 { margin: var(--spacing-2); }
.m-4 { margin: var(--spacing-4); }
.m-6 { margin: var(--spacing-6); }
.m-8 { margin: var(--spacing-8); }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-1 { margin-top: var(--spacing-1); }
.mt-2 { margin-top: var(--spacing-2); }
.mt-4 { margin-top: var(--spacing-4); }
.mt-6 { margin-top: var(--spacing-6); }
.mt-8 { margin-top: var(--spacing-8); }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-4 { margin-bottom: var(--spacing-4); }
.mb-6 { margin-bottom: var(--spacing-6); }
.mb-8 { margin-bottom: var(--spacing-8); }
.ml-2 { margin-left: var(--spacing-2); }
.ml-4 { margin-left: var(--spacing-4); }
.mr-2 { margin-right: var(--spacing-2); }
.mr-4 { margin-right: var(--spacing-4); }

.p-0 { padding: 0; }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.p-6 { padding: var(--spacing-6); }
.p-8 { padding: var(--spacing-8); }
.px-2 { padding-left: var(--spacing-2); padding-right: var(--spacing-2); }
.px-3 { padding-left: var(--spacing-3); padding-right: var(--spacing-3); }
.px-4 { padding-left: var(--spacing-4); padding-right: var(--spacing-4); }
.px-6 { padding-left: var(--spacing-6); padding-right: var(--spacing-6); }
.py-2 { padding-top: var(--spacing-2); padding-bottom: var(--spacing-2); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }
.py-6 { padding-top: var(--spacing-6); padding-bottom: var(--spacing-6); }
.pt-4 { padding-top: var(--spacing-4); }
.pb-4 { padding-bottom: var(--spacing-4); }

/* Text utilities */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Font weights */
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Text colors */
.text-gray-600 { color: var(--color-text-secondary); }
.text-gray-800 { color: var(--color-text); }
.text-red-500 { color: var(--color-exclusion); }
.text-green-500 { color: var(--color-success); }
.text-blue-500 { color: var(--color-notification); }
.text-white { color: white; }

/* Background colors */
.bg-white { background-color: var(--color-card); }
.bg-gray-50 { background-color: var(--color-bg); }
.bg-primary { background-color: var(--color-primary); }
.bg-success { background-color: var(--color-success); }
.bg-blue-500 { background-color: var(--color-notification); }
.bg-red-500 { background-color: var(--color-exclusion); }

/* Border utilities */
.border { border: 1px solid var(--color-border); }
.border-2 { border: 2px solid var(--color-border); }
.border-blue-200 { border-color: #BFDBFE; }
.border-blue-500 { border-color: var(--color-notification); }
.border-green-200 { border-color: #BBF7D0; }
.border-transparent { border-color: transparent; }

/* Border radius */
.rounded { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadows */
.shadow { box-shadow: var(--shadow); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Width/Height */
.w-full { width: 100%; }
.w-auto { width: auto; }
.w-8 { width: 2rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.h-auto { height: auto; }
.h-8 { height: 2rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.max-w-xs { max-width: 20rem; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-4xl { max-width: 56rem; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.top-0 { top: 0; }
.right-0 { right: 0; }
.bottom-0 { bottom: 0; }
.left-0 { left: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-50 { z-index: 50; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* ============================================
   ANIMATIONS & TRANSITIONS
   ============================================ */

.transition { transition: var(--transition); }
.transition-fast { transition: var(--transition-fast); }

.fade-in {
  animation: fadeIn 0.3s ease-in;
}

.slide-up {
  animation: slideUp 0.3s ease-out;
}

.pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.shimmer {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.heart-burst {
  animation: heartBurst 0.6s ease-out;
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes heartBurst {
  0% { transform: scale(1); }
  15% { transform: scale(1.2); }
  30% { transform: scale(1); }
  100% { transform: scale(1); }
}

/* ============================================
   SOCIAL MEDIA FEED COMPONENTS
   ============================================ */

.feed-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-4);
}

.profile-card {
  background: rgba(255, 255, 255, 0.93);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(219, 219, 219, 0.5);
  border-radius: var(--radius);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
  position: relative;
}

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

.own-profile-card {
  border: 2px solid #BFDBFE;
  background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
  position: relative;
}

.own-profile-card::before {
  content: "Dein Profil";
  position: absolute;
  top: -8px;
  left: var(--spacing-4);
  background: var(--color-notification);
  color: white;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
}

.profile-header {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-3);
}

.profile-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  margin-right: var(--spacing-3);
  object-fit: cover;
  border: 2px solid var(--color-border);
}

.profile-username {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 2px;
}

.profile-description {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.4;
  max-height: 4.2em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.profile-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-4);
  padding-top: var(--spacing-3);
  border-top: 1px solid #f0f0f0;
}

.like-button {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-2);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: flex;
  align-items: center;
  font-size: 24px;
}

.like-button:hover {
  background-color: #ffeee9;
}

.like-button.liked {
  color: var(--color-primary);
}

.like-button.liked .heart-icon {
  animation: heartBurst 0.6s ease-out;
}

.like-counter {
  font-size: 12px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.seen-badge {
  background: #f0f0f0;
  color: var(--color-text-secondary);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 500;
}

.profile-skeleton {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-4);
  animation: pulse 1.5s ease-in-out infinite;
}

.skeleton-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #e5e5e5;
  margin-right: var(--spacing-3);
  margin-bottom: var(--spacing-2);
}

.skeleton-line {
  height: 12px;
  background: #e5e5e5;
  border-radius: 6px;
  margin-bottom: var(--spacing-2);
}

.skeleton-line.short { width: 60%; }
.skeleton-line.medium { width: 80%; }
.skeleton-line.long { width: 100%; }

/* ============================================
   TIMER & NOTIFICATIONS
   ============================================ */

.timer-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: #f0f0f0;
  z-index: 50;
}

.timer-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--color-success), var(--color-primary));
  transition: width 1s linear;
}

.timer-display {
  position: fixed;
  top: var(--spacing-4);
  right: var(--spacing-4);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  z-index: 40;
}

.notification-toast {
  position: fixed;
  top: var(--spacing-8);
  right: var(--spacing-4);
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-notification);
  border-radius: var(--radius);
  padding: var(--spacing-4);
  box-shadow: var(--shadow-lg);
  min-width: 300px;
  z-index: 60;
  animation: slideIn 0.3s ease-out;
}

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

.toast-content {
  display: flex;
  align-items: center;
}

.toast-icon {
  color: var(--color-primary);
  margin-right: var(--spacing-3);
  font-size: 18px;
}

.toast-text {
  font-size: 14px;
  color: var(--color-text);
}

/* ============================================
   RESEARCHER DASHBOARD
   ============================================ */

.dashboard {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-8);
}

.dashboard-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
  padding: var(--spacing-8) var(--spacing-6);
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius);
  border: 1px solid rgba(219, 219, 219, 0.4);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
}

.dashboard-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.dashboard-subtitle {
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.session-config {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(219, 219, 219, 0.6);
  border-radius: var(--radius);
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-8);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.config-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.config-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-4);
}

.stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-8);
}

.stat-card {
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(219, 219, 219, 0.5);
  border-radius: var(--radius);
  padding: var(--spacing-6);
  text-align: center;
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
  transition: var(--transition);
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-2);
}

.stat-label {
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
}

.session-table {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  background: #f8f9fa;
  padding: var(--spacing-4);
  text-align: left;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.table td {
  padding: var(--spacing-4);
  border-bottom: 1px solid #f0f0f0;
}

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

.table tr:hover {
  background: #fafafa;
}

.status-badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.025em;
}

.status-complete { 
  background: #d4edda; 
  color: #155724; 
}

.status-incomplete { 
  background: #f8d7da; 
  color: #721c24; 
}

.status-running { 
  background: #d1ecf1; 
  color: #0c5460; 
}

/* ============================================
   FORM ELEMENTS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-4);
}

.form-label {
  display: block;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
  font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-card);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-notification);
  box-shadow: 0 0 0 3px rgba(56, 151, 240, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 80px;
}

.char-counter {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-align: right;
  margin-top: var(--spacing-1);
}

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

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-4);
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  min-height: 40px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: #c12d5a;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: var(--color-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: #f8f9fa;
  box-shadow: var(--shadow);
}

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

.btn-success:hover:not(:disabled) {
  background: #00a747;
  box-shadow: var(--shadow-md);
}

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

.btn-danger:hover:not(:disabled) {
  background: #e6342a;
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-6);
  font-size: 1rem;
  min-height: 48px;
}

.btn-sm {
  padding: var(--spacing-2) var(--spacing-3);
  font-size: 0.75rem;
  min-height: 32px;
}

/* ============================================
   QUESTIONNAIRE COMPONENTS
   ============================================ */

.questionnaire-container {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-8);
}

.questionnaire-section {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-6);
  box-shadow: var(--shadow);
}

.section-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
}

.section-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  line-height: 1.6;
}

.question-item {
  margin-bottom: var(--spacing-6);
  padding-bottom: var(--spacing-6);
  border-bottom: 1px solid #f0f0f0;
}

.question-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.question-text {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
}

.likert-scale {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-2);
  margin: var(--spacing-4) 0;
}

.likert-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: var(--transition);
}

.likert-option input[type="radio"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-1);
  transition: var(--transition);
  cursor: pointer;
}

.likert-option input[type="radio"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 3px white;
}

.likert-option:hover input[type="radio"] {
  border-color: var(--color-primary);
}

.likert-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 80px;
}

.scale-labels {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-2);
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

.panas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-4);
}

.panas-item {
  background: #f8f9fa;
  border-radius: var(--radius-sm);
  padding: var(--spacing-4);
  transition: var(--transition);
}

.panas-item:hover {
  background: #f0f0f0;
}

.panas-word {
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--spacing-3);
  text-transform: capitalize;
}

.panas-scale {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-2);
}

.panas-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.panas-option input[type="radio"] {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-1);
  transition: var(--transition);
  cursor: pointer;
}

.panas-option input[type="radio"]:checked {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: inset 0 0 0 2px white;
}

.panas-number {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.progress-indicator {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-6);
}

/* ============================================
   DEBRIEFING COMPONENTS
   ============================================ */

.debriefing-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-8);
}

.debriefing-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
  padding: var(--spacing-6);
  background: linear-gradient(135deg, var(--color-success), #00b548);
  color: white;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.debriefing-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: var(--spacing-2);
}

.debriefing-subtitle {
  font-size: 1rem;
  opacity: 0.9;
}

.debriefing-content {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-8);
  margin-bottom: var(--spacing-6);
  box-shadow: var(--shadow);
  line-height: 1.8;
  font-size: 1rem;
}

.debriefing-content p {
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
}

.debriefing-content strong {
  font-weight: 600;
  color: var(--color-text);
}

.wellbeing-check {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-6);
  box-shadow: var(--shadow);
}

.wellbeing-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
  text-align: center;
}

.emoji-scale {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-2);
  margin: var(--spacing-4) 0;
}

.emoji-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  padding: var(--spacing-3);
  border-radius: var(--radius);
  transition: var(--transition);
  flex: 1;
  text-align: center;
}

.emoji-option:hover {
  background: #f0f0f0;
}

.emoji-option.selected {
  background: var(--color-success);
  color: white;
}

.emoji {
  font-size: 2rem;
  margin-bottom: var(--spacing-1);
}

.emoji-label {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.emoji-option.selected .emoji-label {
  color: white;
}

.support-info {
  background: #fff3cd;
  border: 1px solid #ffeaa7;
  border-radius: var(--radius);
  padding: var(--spacing-4);
  margin-bottom: var(--spacing-6);
  color: #856404;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ============================================
   PROFILE SETUP COMPONENTS
   ============================================ */

.profile-setup-container {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-8);
}

.setup-header {
  text-align: center;
  margin-bottom: var(--spacing-8);
}

.setup-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.setup-subtitle {
  color: var(--color-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
}

.setup-section {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-6);
  box-shadow: var(--shadow);
}

.section-label {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-4);
  font-size: 1rem;
}

.avatar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-4);
}

.avatar-option {
  aspect-ratio: 1;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  overflow: hidden;
  background: var(--color-card);
}

.avatar-option:hover {
  border-color: var(--color-notification);
  transform: scale(1.05);
}

.avatar-option.selected {
  border-color: var(--color-notification);
  box-shadow: 0 0 0 2px rgba(56, 151, 240, 0.2);
  transform: scale(1.05);
}

.avatar-option img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #f0f0f0;
  border-top: 4px solid var(--color-notification);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-4);
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  color: var(--color-text-secondary);
  font-size: 1rem;
  font-weight: 500;
}

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

@media (max-width: 768px) {
  .dashboard {
    padding: var(--spacing-4);
  }
  
  .config-form {
    grid-template-columns: 1fr;
  }
  
  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .panas-grid {
    grid-template-columns: 1fr;
  }
  
  .likert-scale {
    flex-direction: column;
    gap: var(--spacing-3);
  }
  
  .avatar-grid {
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
  }
  
  .emoji-scale {
    flex-wrap: wrap;
    gap: var(--spacing-3);
  }
  
  .notification-toast {
    right: var(--spacing-2);
    left: var(--spacing-2);
    min-width: auto;
  }
}

@media (max-width: 480px) {
  .feed-container {
    padding: var(--spacing-2);
  }
  
  .profile-card {
    padding: var(--spacing-3);
  }
  
  .questionnaire-container {
    padding: var(--spacing-4);
  }
  
  .debriefing-container {
    padding: var(--spacing-4);
  }
  
  .profile-setup-container {
    padding: var(--spacing-4);
  }
  
  .stats-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
  .timer-bar,
  .timer-display,
  .notification-toast,
  .btn {
    display: none !important;
  }
  
  .profile-card,
  .questionnaire-section {
    break-inside: avoid;
  }
}

/* ============================================
   AI ASSISTANT STYLES
   ============================================ */

.ai-assistant-section {
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
}

.ai-status-indicator {
  display: flex;
  align-items: center;
}

.ai-status-indicator span {
  font-weight: 500;
  letter-spacing: 0.025em;
}

.ai-status-indicator .status-connected {
  background-color: #D1FAE5;
  color: #065F46;
}

.ai-status-indicator .status-disconnected {
  background-color: #F3F4F6;
  color: #374151;
}

.ai-buttons {
  margin-top: var(--spacing-4);
  gap: var(--spacing-3);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  transition: all 0.2s ease;
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-bg);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background-color: #F9FAFB;
  border-color: #E5E7EB;
  color: #9CA3AF;
}

/* AI Modal Styles */
.ai-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: var(--spacing-4);
}

.ai-modal-content {
  background-color: var(--color-card);
  border-radius: 12px;
  padding: var(--spacing-6);
  max-width: 600px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.ai-modal h3 {
  margin-bottom: var(--spacing-4);
  color: var(--color-text);
  font-size: 1.25rem;
  font-weight: 600;
}

.ai-result {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--spacing-4);
  margin: var(--spacing-4) 0;
  font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
  font-size: 0.9rem;
  white-space: pre-wrap;
  max-height: 400px;
  overflow-y: auto;
}

.ai-error {
  background-color: #FEF2F2;
  border-color: #F87171;
  color: #B91C1C;
}

.ai-success {
  background-color: #F0FDF4;
  border-color: #4ADE80;
  color: #166534;
}

.ai-loading {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-4);
  color: var(--color-text-secondary);
}

.ai-loading-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid #E5E7EB;
  border-top: 2px solid var(--color-primary);
  border-radius: 50%;
  animation: ai-spin 1s linear infinite;
}

@keyframes ai-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Form enhancements for AI settings */
.form-group h4 {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
}

.form-group hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-4) 0;
}