/* MoodLift - Mental Wellness PWA - Enhanced 2026 */
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;600;700;800;900&display=swap');

:root {
  /* Primary colors - Soft, calming palette */
  --color-primary: #7C8CF8;
  --color-primary-dark: #5B6CE3;
  --color-primary-light: #A5B4FC;
  --color-secondary: #E8E0F0;
  --color-secondary-dark: #D4C5E0;
  
  /* Background colors */
  --color-background: #F8FAFF;
  --color-background-alt: #F0F4FF;
  --color-white: #FFFFFF;
  
  /* Text colors */
  --color-text: #2D3748;
  --color-text-light: #718096;
  --color-text-lighter: #A0AEC0;
  
  /* Border & dividers */
  --color-border: #E2E8F0;
  --color-border-light: #EDF2F7;
  
  /* Mood colors - More vibrant, emotional */
  --mood-awful: #EF4444;
  --mood-bad: #F59E0B;
  --mood-okay: #8B9DC3;
  --mood-good: #10B981;
  --mood-great: #3B82F6;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #7C8CF8 0%, #A78BFA 100%);
  --gradient-background: linear-gradient(135deg, #F8FAFF 0%, #E8E0F0 50%, #D4E4FF 100%);
  --gradient-card: linear-gradient(135deg, rgba(124, 140, 248, 0.08), rgba(232, 224, 240, 0.15));
  
  /* Shadows - Soft, layered */
  --shadow-sm: 0 1px 2px rgba(45, 55, 72, 0.04);
  --shadow: 0 4px 12px rgba(45, 55, 72, 0.08);
  --shadow-md: 0 8px 20px rgba(45, 55, 72, 0.12);
  --shadow-lg: 0 12px 30px rgba(45, 55, 72, 0.15);
  --shadow-xl: 0 20px 50px rgba(45, 55, 72, 0.2);
  
  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

body {
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  background: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Gradient background */
.gradient-bg {
  background: var(--gradient-background);
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
}

/* Breathing Circle Animation - Enhanced */
@keyframes breathe {
  0%, 100% { 
    transform: scale(1); 
    opacity: 0.7;
    box-shadow: 0 0 40px rgba(124, 140, 248, 0.3);
  }
  50% { 
    transform: scale(1.25); 
    opacity: 1;
    box-shadow: 0 0 80px rgba(124, 140, 248, 0.6);
  }
}

.breathing-circle {
  width: 200px;
  height: 200px;
  margin: 40px auto;
  position: relative;
  animation: breathe 6s ease-in-out infinite;
}

.breathing-circle-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  transition: var(--transition);
}

/* Buttons - Enhanced with micro-interactions */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  transition: var(--transition-bounce);
  font-family: 'Nunito', sans-serif;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.3);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

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

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.btn-primary:active {
  transform: translateY(-1px);
}

.btn-secondary {
  background: white;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.btn-full {
  width: 100%;
}

.btn-large {
  padding: 18px 40px;
  font-size: 18px;
}

/* Cards - Premium feel */
.card {
  background: white;
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--color-border-light);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card-gradient {
  background: var(--gradient-card);
  border: none;
}

/* Input fields - Modern, clean */
.input-group {
  margin-bottom: 20px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.input-group input,
.input-group textarea,
.input-group select {
  width: 100%;
  padding: 14px 18px;
  border: 2px solid var(--color-border);
  border-radius: 14px;
  font-size: 16px;
  font-family: 'Nunito', sans-serif;
  transition: var(--transition);
  background: white;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(124, 140, 248, 0.1);
  transform: translateY(-1px);
}

.input-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Mood selector - Card-based flow */
.mood-selector {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 24px 0;
}

.mood-option {
  flex: 1;
  padding: 20px 8px;
  border: 3px solid transparent;
  border-radius: 18px;
  background: white;
  cursor: pointer;
  transition: var(--transition-bounce);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.mood-option:hover {
  transform: translateY(-6px) scale(1.05);
  box-shadow: var(--shadow-md);
}

.mood-option.selected {
  border-color: var(--color-primary);
  background: var(--gradient-card);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px) scale(1.08);
}

.mood-emoji {
  font-size: 40px;
  display: block;
  margin-bottom: 8px;
  transition: var(--transition);
}

.mood-option:hover .mood-emoji {
  transform: scale(1.2);
}

.mood-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Activity grid - Icon-based */
.activity-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 12px;
  margin: 20px 0;
}

.activity-item {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px;
  border-radius: 16px;
  background: white;
  border: 2px solid var(--color-border);
  cursor: pointer;
  transition: var(--transition-bounce);
  text-align: center;
}

.activity-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.activity-item.selected {
  border-color: var(--color-primary);
  background: var(--gradient-card);
  box-shadow: var(--shadow);
}

.activity-icon {
  font-size: 32px;
}

.activity-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.2;
}

/* Tag selector - Pill-based */
.tag-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 20px 0;
}

.tag {
  padding: 10px 20px;
  border-radius: 24px;
  background: var(--color-secondary);
  color: var(--color-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-bounce);
  border: 2px solid transparent;
  box-shadow: var(--shadow-sm);
}

.tag:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.tag.selected {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--color-primary-dark);
  box-shadow: var(--shadow);
  transform: scale(1.05);
}

/* Navigation */
.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--color-border-light);
}

.nav-logo {
  font-size: 26px;
  font-weight: 900;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  letter-spacing: -0.5px;
}

/* Bottom navigation - Modern, floating */
.bottom-nav {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: 20px;
  background: white;
  display: flex;
  justify-content: space-around;
  padding: 12px 8px;
  box-shadow: var(--shadow-xl);
  z-index: 100;
  border-radius: 24px;
  border: 1px solid var(--color-border-light);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--color-text-light);
  font-size: 11px;
  font-weight: 700;
  transition: var(--transition);
  padding: 10px 16px;
  border-radius: 16px;
  min-width: 70px;
}

.bottom-nav-item.active {
  color: var(--color-primary);
  background: var(--gradient-card);
}

.bottom-nav-item:active {
  transform: scale(0.95);
}

.bottom-nav-icon {
  font-size: 26px;
  margin-bottom: 4px;
  transition: var(--transition);
}

.bottom-nav-item:hover .bottom-nav-icon {
  transform: scale(1.15);
}

/* Chat interface */
.chat-container {
  max-width: 700px;
  margin: 0 auto;
  padding-bottom: 100px;
}

.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

.chat-message {
  display: flex;
  gap: 12px;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-message.user {
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.chat-message.user .chat-avatar {
  background: var(--gradient-primary);
}

.chat-message.assistant .chat-avatar {
  background: var(--color-secondary);
}

.chat-bubble {
  max-width: 75%;
  padding: 14px 18px;
  border-radius: 18px;
  line-height: 1.5;
  box-shadow: var(--shadow-sm);
}

.chat-message.user .chat-bubble {
  background: var(--gradient-primary);
  color: white;
  border-bottom-right-radius: 4px;
}

.chat-message.assistant .chat-bubble {
  background: white;
  color: var(--color-text);
  border-bottom-left-radius: 4px;
}

.chat-input-container {
  position: fixed;
  bottom: 90px;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: white;
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.05);
}

.chat-input-wrapper {
  display: flex;
  gap: 12px;
  max-width: 700px;
  margin: 0 auto;
}

.chat-input {
  flex: 1;
  padding: 14px 18px;
  border: 2px solid var(--color-border);
  border-radius: 24px;
  font-size: 16px;
  font-family: 'Nunito', sans-serif;
  resize: none;
  max-height: 120px;
  transition: var(--transition);
}

.chat-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(124, 140, 248, 0.1);
}

.chat-send-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: white;
  border: none;
  font-size: 20px;
  cursor: pointer;
  transition: var(--transition-bounce);
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.chat-send-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-lg);
}

.chat-send-btn:active {
  transform: scale(0.95);
}

/* Year in Pixels */
.pixels-calendar {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(12px, 1fr));
  gap: 4px;
  padding: 20px;
  max-width: 600px;
  margin: 0 auto;
}

.pixel {
  aspect-ratio: 1;
  border-radius: 3px;
  transition: var(--transition);
  cursor: pointer;
}

.pixel:hover {
  transform: scale(1.3);
  box-shadow: var(--shadow);
  z-index: 10;
}

.pixel.mood-1 { background: var(--mood-awful); }
.pixel.mood-2 { background: var(--mood-bad); }
.pixel.mood-3 { background: var(--mood-okay); }
.pixel.mood-4 { background: var(--mood-good); }
.pixel.mood-5 { background: var(--mood-great); }
.pixel.empty { background: var(--color-border-light); }

/* Loading spinner - Smooth */
.spinner {
  border: 3px solid var(--color-border-light);
  border-top: 3px solid var(--color-primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 0.8s linear infinite;
  margin: 20px auto;
}

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

/* Skeleton loading */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

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

/* Alerts & Notifications */
.alert {
  padding: 16px 20px;
  border-radius: 14px;
  margin-bottom: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 12px;
  animation: slideIn 0.3s ease-out;
}

.alert-info {
  background: rgba(124, 140, 248, 0.1);
  color: var(--color-primary-dark);
  border: 2px solid rgba(124, 140, 248, 0.3);
}

.alert-warning {
  background: #FEF3C7;
  color: #92400E;
  border: 2px solid #F59E0B;
}

.alert-success {
  background: #D1FAE5;
  color: #065F46;
  border: 2px solid #10B981;
}

.alert-crisis {
  background: #FEE2E2;
  color: #991B1B;
  border: 2px solid #EF4444;
  font-weight: 700;
}

/* Streak badge */
.streak-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--gradient-primary);
  color: white;
  border-radius: 24px;
  font-weight: 800;
  font-size: 24px;
  box-shadow: var(--shadow-lg);
}

/* Utilities */
.text-center { text-align: center; }
.text-muted { color: var(--color-text-light); }
.text-sm { font-size: 14px; }
.text-xs { font-size: 12px; }
.font-bold { font-weight: 700; }
.font-black { font-weight: 900; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.p-4 { padding: 32px; }

.hidden { display: none !important; }
.invisible { opacity: 0; pointer-events: none; }

/* Fade in animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.view {
  animation: fadeIn 0.4s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
  .mood-selector {
    gap: 6px;
  }
  
  .mood-emoji {
    font-size: 32px;
  }
  
  .mood-label {
    font-size: 11px;
  }
  
  .breathing-circle {
    width: 160px;
    height: 160px;
  }
  
  .activity-grid {
    grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
    gap: 10px;
  }
  
  .activity-icon {
    font-size: 28px;
  }
  
  .bottom-nav {
    bottom: 0;
    left: 0;
    right: 0;
    border-radius: 0;
    border-bottom: none;
  }
  
  .chat-bubble {
    max-width: 85%;
  }
  
  .card {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
  
  h1 { font-size: 32px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }
}

/* Dark mode support (future) */
@media (prefers-color-scheme: dark) {
  /* Will add dark mode styles in future iteration */
}

/* Accessibility */
.focus-visible:focus {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  .bottom-nav,
  .nav,
  .btn,
  .chat-input-container {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}