/* 🎯 Native Mobile App CSS - Industry Standard UX */

:root {
  /* Base colors */
  --color-bg: #0a0a0a;   /* page background */
  --color-surface: #121212;   /* card background */
  --color-border: #1f1f1f;   /* subtle dividers */
  --color-text: #ffffff;   /* main text */
  --color-muted: #a1a1aa;   /* secondary text */

  /* Accent system */
  --color-accent: #ff2d55;   /* primary brand color (the red/pink you like) */
  --color-accent-rgb: 255, 45, 85; /* for shadows/alpha effects */

  /* UI states derived from accent */
  --color-accent-hover: #ff456d;
  --color-accent-active: #e0264b;

  /* Semantic tokens (good for scaling later) */
  --color-btn-bg: var(--color-accent);
  --color-btn-text: #fff;
  --color-link: var(--color-accent);
  --color-outline: var(--color-accent);

  /* Legacy compatibility (will be removed) */
  --app-bg: var(--color-bg);
  --app-surface: var(--color-surface);
  --app-surface-secondary: #2c2c2e;
  --app-border: var(--color-border);
  --app-text-primary: var(--color-text);
  --app-text-secondary: #ebebf5;
  --app-text-tertiary: #ebebf599;
  --app-accent: var(--color-accent);
  --app-accent-rgb: var(--color-accent-rgb);
  --app-accent-dark: var(--color-accent-active);
  
  /* Native spacing (8pt grid system) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  
  /* Native typography scale */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-md: 16px;
  --text-lg: 18px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 42px;
  
  /* Native touch targets */
  --touch-target: 44px;
  --touch-target-large: 56px;
  
  /* Native animation */
  --spring: cubic-bezier(0.175, 0.885, 0.32, 1.275);
  --ease-out: cubic-bezier(0.4, 0.0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0.0, 0.6, 1);
}

/* Reset and base styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  height: 100%;
  overflow-x: hidden;
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  background: var(--color-bg) !important;
  color: var(--color-text) !important;
  line-height: 1.4;
  height: 100vh !important; /* Fixed height - no min-height */
  height: 100dvh !important;
  overflow: hidden !important; /* Prevent all scrolling */
  font-size: 16px;
  font-weight: 400;
  letter-spacing: -0.01em;
  
  /* Prevent bounce scrolling on iOS */
  overscroll-behavior: none;
  
  /* Smooth scroll */
  scroll-behavior: smooth;
  
  /* Better text rendering */
  text-rendering: optimizeSpeed;
  
  /* Disable selection on non-text elements */
  -webkit-user-select: none;
  user-select: none;
}

/* Re-enable selection for text content */
p, span, div, h1, h2, h3, input, textarea {
  -webkit-user-select: text;
  user-select: text;
}

/* App container with finisher-header particle background */
.app-container {
  height: 100vh !important; /* Fixed height - no min-height */
  height: 100dvh !important;
  display: flex !important;
  flex-direction: column !important;
  position: relative !important;
  padding: 24px !important;
  width: 100vw !important;
  overflow: hidden !important; /* Prevent container overflow */
}

/* Finisher header background setup */
.app-container.finisher-header {
  /* Clean background for particle system */
  background: var(--color-bg) !important;
}

/* Ensure finisher-header canvas is visible */
#finisher-canvas {
  position: absolute !important;
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  z-index: 0 !important;
  pointer-events: none !important;
}


/* App content wrapper - FINAL VERSION */
.app-content {
  flex: 1 !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
  padding: 24px !important;
  max-width: 375px !important;
  width: 100% !important;
  margin: 0 auto !important;
  background: transparent !important;
  position: relative !important;
  z-index: 1 !important; /* Above the animated overlay */
}

/* App card (main container) - FINAL VERSION */
.app-card {
  width: 100% !important;
  background: var(--color-surface) !important;
  border-radius: 20px !important;
  padding: 48px 24px 24px !important;
  box-shadow: 
    0 0 0 1px var(--color-border) !important,
    0 16px 40px rgba(0, 0, 0, 0.6) !important;
  position: relative !important;
  overflow: hidden;
  min-height: 400px !important;
}

.app-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    rgba(var(--app-accent-rgb), 0.3) 50%, 
    transparent 100%);
}

/* Typography */
.app-title {
  font-size: 42px; /* Fallback */
  font-size: var(--text-3xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  text-align: center;
  margin-bottom: 8px; /* Fallback */
  margin-bottom: var(--space-sm);
  color: var(--color-accent);
  animation: titleReveal 1s var(--spring) 0.4s both;
}

.app-subtitle {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-muted);
  text-align: center;
  margin-bottom: var(--space-2xl);
  letter-spacing: -0.01em;
  animation: slideIn 0.6s var(--ease-out) 0.6s both;
}

/* Title reveal animation */
@keyframes titleReveal {
  0% {
    opacity: 0;
    transform: scale(0.8) translateY(10px);
  }
  70% {
    transform: scale(1.05) translateY(-2px);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* Form styles */
.app-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  animation: slideIn 0.6s var(--ease-out) 0.8s both;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  animation: slideIn 0.5s var(--ease-out) 1s both;
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--app-text-secondary);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin-left: var(--space-xs);
}

/* Input field - app-like design */
.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-prefix {
  position: absolute;
  left: var(--space-md);
  color: var(--app-text-tertiary);
  font-weight: 500;
  font-size: var(--text-lg);
  z-index: 1;
  pointer-events: none;
}

.form-input {
  width: 100%;
  height: var(--touch-target-large);
  padding: 0 var(--space-md) 0 var(--space-xl);
  background: var(--app-surface-secondary);
  border: 1px solid var(--app-border);
  border-radius: 14px;
  color: var(--app-text-primary);
  font-size: var(--text-lg);
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: all 0.2s var(--ease-out);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  
  /* Better touch handling */
  touch-action: manipulation;
}

.form-input::placeholder {
  color: var(--app-text-tertiary);
  font-weight: 400;
}

.form-input:focus {
  border-color: var(--app-accent);
  background: rgba(var(--app-accent-rgb), 0.05);
  box-shadow: 
    0 0 0 1px var(--app-accent),
    0 4px 12px rgba(var(--app-accent-rgb), 0.1),
    0 0 20px rgba(var(--app-accent-rgb), 0.05);
  transform: translateY(-1px) scale(1.01);
  animation: inputFocus 0.3s var(--spring);
}

.form-input:focus::placeholder {
  opacity: 0;
  transform: translateX(10px);
}

/* Input focus animation */
@keyframes inputFocus {
  0% { 
    transform: translateY(0) scale(1);
    box-shadow: 
      0 0 0 1px var(--app-border),
      0 0 0 rgba(var(--app-accent-rgb), 0);
  }
  50% { 
    transform: translateY(-2px) scale(1.02);
  }
  100% { 
    transform: translateY(-1px) scale(1.01);
    box-shadow: 
      0 0 0 1px var(--app-accent),
      0 4px 12px rgba(var(--app-accent-rgb), 0.1),
      0 0 20px rgba(var(--app-accent-rgb), 0.05);
  }
}

/* Native app buttons */
.btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-large);
  padding: 0 var(--space-lg);
  border: none;
  border-radius: 14px;
  font-family: inherit;
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  overflow: hidden;
  transform: translateY(0) scale(1);
  
  /* Better touch handling */
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
  
  /* Prevent double-tap zoom */
  user-select: none;
  -webkit-user-select: none;
}

.btn:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  transition: opacity 0.2s var(--ease-out);
}

.btn-primary {
  background: var(--color-btn-bg);
  color: var(--color-btn-text);
  box-shadow: 
    0 1px 3px rgba(0, 0, 0, 0.2),
    0 4px 12px rgba(var(--color-accent-rgb), 0.3);
}

.btn-primary:before {
  background: rgba(255, 255, 255, 0.15);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 
    0 3px 6px rgba(0, 0, 0, 0.15),
    0 8px 24px rgba(var(--app-accent-rgb), 0.4);
}

.btn-primary:hover:not(:disabled):before {
  opacity: 1;
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 
    0 1px 2px rgba(0, 0, 0, 0.2),
    0 2px 8px rgba(var(--app-accent-rgb), 0.3);
}

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

.btn-secondary:before {
  background: rgba(255, 255, 255, 0.05);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--app-accent);
  background: rgba(var(--app-accent-rgb), 0.05);
}

.btn-secondary:hover:not(:disabled):before {
  opacity: 1;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
  filter: saturate(0.7);
}

/* Button loading state */
.btn.loading {
  pointer-events: none;
  position: relative;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  margin: auto;
  border: 2px solid currentColor;
  border-radius: 50%;
  border-top-color: transparent;
  animation: buttonSpin 0.8s linear infinite;
}

@keyframes buttonSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Enhanced touch states for mobile */
@media (hover: none) and (pointer: coarse) {
  .btn-primary:active {
    transform: scale(0.96);
    transition: transform 0.1s var(--ease-out);
  }
  
  .btn-secondary:active {
    transform: scale(0.96);
    background: rgba(var(--app-accent-rgb), 0.15);
    transition: all 0.1s var(--ease-out);
  }
}

/* Loading states */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s var(--ease-out);
}

.loading-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.loading-content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--app-surface);
  border-radius: 20px;
  box-shadow: 0 32px 64px rgba(0, 0, 0, 0.5);
  max-width: 280px;
  width: calc(100vw - var(--space-xl));
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--app-border);
  border-top: 3px solid var(--app-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.loading-text {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--app-text-primary);
}

.loading-subtext {
  font-size: var(--text-sm);
  color: var(--app-text-tertiary);
  line-height: 1.4;
}

/* Progress bar */
.progress-container {
  width: 100%;
  height: 4px;
  background: var(--app-border);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--app-accent);
  border-radius: 2px;
  transition: width 0.3s var(--ease-out);
}

/* Footer */
.app-footer {
  text-align: center;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  animation: slideIn 0.4s var(--ease-out) 1.4s both;
}

.footer-text {
  font-size: var(--text-xs);
  color: var(--app-text-tertiary);
  font-weight: 400;
}

/* Error states */
.error-card {
  background: var(--app-surface-secondary);
  border: 1px solid rgba(var(--app-accent-rgb), 0.3);
  border-radius: 16px;
  padding: var(--space-lg);
  text-align: center;
  margin-top: var(--space-lg);
  animation: slideIn 0.4s var(--ease-out);
}

.error-title {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--app-text-primary);
  margin-bottom: var(--space-sm);
}

.error-message {
  font-size: var(--text-md);
  color: var(--app-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--space-lg);
}

.error-retry {
  background: var(--app-surface-secondary);
  color: var(--app-accent);
  border: 1px solid var(--app-accent);
  border-radius: 12px;
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease-out);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.error-retry:hover {
  background: rgba(var(--app-accent-rgb), 0.1);
  transform: translateY(-1px);
}

.error-retry:active {
  transform: translateY(0);
}

/* Animations */
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

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

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

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Haptic feedback simulation */
.haptic-light {
  animation: hapticLight 0.1s var(--ease-out);
}

.haptic-medium {
  animation: hapticMedium 0.15s var(--ease-out);
}

.haptic-heavy {
  animation: hapticHeavy 0.2s var(--ease-out);
}

@keyframes hapticLight {
  0% { transform: scale(1); }
  50% { transform: scale(0.98); }
  100% { transform: scale(1); }
}

@keyframes hapticMedium {
  0% { transform: scale(1); }
  25% { transform: scale(0.96); }
  75% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

@keyframes hapticHeavy {
  0% { transform: scale(1); }
  20% { transform: scale(0.94); }
  40% { transform: scale(1.03); }
  60% { transform: scale(0.98); }
  80% { transform: scale(1.01); }
  100% { transform: scale(1); }
}

/* Profile page specific styles */
.profile-hero {
  text-align: center;
  padding: 3rem 0 2rem 0;
}

.profile-score {
  font-size: 4rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-text), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin: 0;
  animation: scoreReveal 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.3s both;
}

.profile-label {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0.5rem 0;
  animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.5s both;
}

.profile-username {
  color: var(--color-muted);
  font-size: 1.125rem;
  margin: 0;
  animation: slideUp 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.7s both;
}

/* Aura card components */
.aura-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.aura-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.aura-card-title {
  color: var(--color-accent);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0;
}

.aura-badge {
  background: rgba(var(--color-accent-rgb), 0.2);
  color: var(--color-accent);
  padding: 0.5rem 1rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
}

.aura-notes {
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0;
}

/* Score grid */
.score-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.score-item {
  text-align: center;
  padding: 1rem;
  background: var(--color-bg);
  border-radius: 0.75rem;
  border: 1px solid var(--color-border);
}

.score-item-label {
  color: var(--color-muted);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

/* Bonus card */
.bonus-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.bonus-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.bonus-label {
  color: var(--color-accent);
  font-size: 1.25rem;
  font-weight: 600;
}

.bonus-value {
  font-size: 1.5rem;
  font-weight: 700;
}

.bonus-value.positive {
  color: var(--color-accent);
}

.bonus-value.negative {
  color: #ff6b6b;
}

.bonus-reason {
  color: var(--color-muted);
  line-height: 1.5;
  margin: 0;
}

/* Action buttons container */
.action-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

/* Navigation back button */
.nav-back {
  position: absolute;
  top: 2rem;
  left: 2rem;
  background: rgba(var(--color-accent-rgb), 0.1);
  border: 1px solid rgba(var(--color-accent-rgb), 0.3);
  color: var(--color-accent);
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  backdrop-filter: blur(20px);
  z-index: 10;
}

.nav-back:hover {
  background: rgba(var(--color-accent-rgb), 0.2);
  transform: translateY(-2px);
}

/* Animations */
@keyframes scoreReveal {
  from { 
    opacity: 0; 
    transform: scale(0.8) translateY(20px); 
  }
  to { 
    opacity: 1; 
    transform: scale(1) translateY(0); 
  }
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(15px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

/* Footer */
.footer {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.footer-text {
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-weight: 400;
}

/* Main container for profile pages */
.main-container {
  min-height: 100vh;
  padding: 2rem 1rem;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

/* Desktop overrides (keep it mobile-first) */
@media (min-width: 768px) {
  .app-content {
    max-width: 420px;
    padding: var(--space-2xl);
  }
  
  .app-card {
    padding: var(--space-2xl);
  }
  
  .profile-score { 
    font-size: 5rem; 
  }
  
  .nav-back { 
    top: 2rem; 
    left: 2rem; 
    padding: 0.75rem 1rem; 
    font-size: 1rem; 
  }
  
  .main-container {
    padding: 3rem 2rem;
  }
}

@media (max-width: 640px) {
  .profile-score { 
    font-size: 3rem; 
  }
  
  .nav-back { 
    top: 1rem; 
    left: 1rem; 
    padding: 0.5rem 0.75rem; 
    font-size: 0.875rem; 
  }
  
  .profile-hero { 
    padding: 2rem 0 1.5rem 0; 
  }
  
  .score-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .main-container {
    padding: 1rem;
  }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}