/* ============================================
   1. CSS VARIABLES - Design System
   ============================================ */

:root {
  /* ============================================
     COLOR PALETTE (Theme customizable)
     ============================================ */

  /* Primary colors */
  --color-primary: #6366f1;        /* Indigo - main brand color */
  --color-primary-light: #818cf8;  /* Light variant */
  --color-primary-dark: #4f46e5;   /* Dark variant */

  /* Secondary colors */
  --color-secondary: #ec4899;      /* Pink - accent */
  --color-secondary-light: #f472b6;
  --color-secondary-dark: #db2777;

  /* Accent colors */
  --color-accent: #f59e0b;         /* Amber - CTAs */
  --color-success: #10b981;        /* Green - success states */
  --color-warning: #f59e0b;        /* Amber - warnings */
  --color-error: #ef4444;          /* Red - errors */
  --color-info: #3b82f6;           /* Blue - info */

  /* Neutral colors */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;

  /* Semantic colors */
  --color-bg: var(--color-white);
  --color-surface: var(--color-gray-50);
  --color-text: var(--color-gray-900);
  --color-text-light: var(--color-gray-600);
  --color-text-lighter: var(--color-gray-400);
  --color-border: var(--color-gray-200);

  /* Feature-specific colors */
  --color-print: #3b82f6;          /* Blue for print options */
  --color-email: #ef4444;          /* Red for email options */
  --color-both: #8b5cf6;           /* Purple for both options */

  /* ============================================
     GRADIENTS - Premium visual depth
     ============================================ */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-success: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-sunset: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
  --gradient-ocean: linear-gradient(135deg, #2afadf 0%, #4c83ff 100%);
  --gradient-purple: linear-gradient(135deg, #9d50bb 0%, #6e48aa 100%);
  --gradient-fire: linear-gradient(135deg, #ff6a00 0%, #ee0979 100%);

  /* Background gradients for screens */
  --gradient-bg-light: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --gradient-bg-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-bg-warm: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);

  /* Glassmorphism backgrounds */
  --glass-white: rgba(255, 255, 255, 0.25);
  --glass-white-strong: rgba(255, 255, 255, 0.4);
  --glass-dark: rgba(0, 0, 0, 0.1);
  --glass-blur: blur(10px);
  --glass-blur-strong: blur(20px);

  /* ============================================
     SPACING SYSTEM (4px base grid - COMPACT)
     ============================================ */
  --space-xs: 0.25rem;    /* 4px */
  --space-sm: 0.5rem;     /* 8px */
  --space-md: 0.75rem;    /* 12px */
  --space-lg: 1rem;       /* 16px */
  --space-xl: 1.5rem;     /* 24px */
  --space-2xl: 2rem;      /* 32px */
  --space-3xl: 3rem;      /* 48px */

  /* ============================================
     TYPOGRAPHY (Kiosk-sized)
     ============================================ */

  /* Font families */
  --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Segoe UI', system-ui, -apple-system, sans-serif;

  /* Font sizes - COMPACT for kiosk */
  --text-xs: 0.75rem;     /* 12px */
  --text-sm: 0.875rem;    /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg: 1.25rem;     /* 20px */
  --text-xl: 1.5rem;      /* 24px */
  --text-2xl: 1.75rem;    /* 28px */
  --text-3xl: 2rem;       /* 32px */
  --text-4xl: 2.5rem;     /* 40px */

  /* Font weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-black: 900;

  /* Line heights */
  --leading-tight: 1.2;
  --leading-normal: 1.5;
  --leading-relaxed: 1.75;

  /* ============================================
     SIZING
     ============================================ */

  /* Touch targets - COMPACT for space efficiency */
  --touch-min: 50px;
  --touch-comfortable: 60px;
  --touch-large: 70px;

  /* Container widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;

  /* ============================================
     EFFECTS
     ============================================ */

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.2);
  --shadow-2xl: 0 24px 64px rgba(0, 0, 0, 0.25);

  /* Inset shadows */
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);

  /* Border radius */
  --radius-sm: 0.5rem;    /* 8px */
  --radius-md: 1rem;      /* 16px */
  --radius-lg: 1.5rem;    /* 24px */
  --radius-xl: 2rem;      /* 32px */
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slower: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Animations */
  --animation-spin: spin 1s linear infinite;
  --animation-ping: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
  --animation-pulse: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
  --animation-bounce: bounce 1s infinite;

  /* ============================================
     Z-INDEX SCALE
     ============================================ */
  --z-base: 0;
  --z-dropdown: 1000;
  --z-sticky: 1100;
  --z-fixed: 1200;
  --z-modal-backdrop: 1300;
  --z-modal: 1400;
  --z-popover: 1500;
  --z-tooltip: 1600;

  /* ============================================
     LAYOUT
     ============================================ */
  --header-height: 45px;
  --footer-height: 80px; /* INCREASED for progress navigation buttons */
  --progress-bar-height: 80px;
}

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

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

@keyframes ping {
  75%, 100% {
    transform: scale(2);
    opacity: 0;
  }
}

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

@keyframes bounce {
  0%, 100% {
    transform: translateY(-25%);
    animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
  }
  50% {
    transform: translateY(0);
    animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
  }
}

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

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

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

@keyframes scaleIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes confetti {
  0% {
    transform: translateY(-100vh) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 20px var(--color-primary-light), var(--shadow-lg);
  }
  50% {
    box-shadow: 0 0 40px var(--color-primary-light),
                0 0 60px var(--color-primary-light),
                var(--shadow-xl);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes shimmer {
  0% {
    background-position: -1000px 0;
  }
  100% {
    background-position: 1000px 0;
  }
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
  }
  10%, 30% {
    transform: scale(1.1);
  }
  20%, 40% {
    transform: scale(1);
  }
}

/* Batch 7: Confetti celebration effect */
@keyframes confettiFall {
  0% {
    transform: translateY(-20px) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

/* ============================================
   2. RESET & BASE STYLES
   ============================================ */

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  /* 1rem = 16px base */
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--gradient-bg-light);
  overflow: hidden; /* CRITICAL: No scrolling on kiosk */
  width: 100vw;
  height: 100vh;
  position: fixed; /* Lock to viewport */
}

/* Remove default list styles */
ul, ol {
  list-style: none;
}

/* Remove default button styles */
button {
  border: none;
  background: none;
  font-family: inherit;
  cursor: pointer;
  color: inherit;
}

/* Remove default link styles */
a {
  color: inherit;
  text-decoration: none;
}

/* Remove default input styles */
input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
}

/* Remove spinner from number inputs */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"] {
  -moz-appearance: textfield;
}

/* Image defaults */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

/* Form elements inherit font */
input, button, textarea, select {
  font: inherit;
}

/* Remove animations for people who prefer reduced motion */
@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;
  }
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 12px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-gray-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-500);
}

/* Selection color */
::selection {
  background-color: var(--color-primary-light);
  color: var(--color-white);
}

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

/* ============================================
   3. COMPONENTS
   ============================================ */

/* ============================================
   BUTTON COMPONENT
   ============================================ */

/* Base button styles */
.btn {
  /* Layout */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);

  /* Sizing */
  min-width: var(--touch-min);
  min-height: var(--touch-min);
  padding: var(--space-md) var(--space-lg);

  /* Typography */
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  text-align: center;

  /* Visual */
  border-radius: var(--radius-lg);
  border: 3px solid transparent;
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-lg);

  /* Interaction */
  cursor: pointer;
  user-select: none;
  transition: all var(--transition-base);

  /* Prevent double-tap zoom on iOS */
  touch-action: manipulation;
}

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

/* M6: Enhanced touch feedback */
.btn:active {
  transform: translateY(0) scale(0.98);
  box-shadow: var(--shadow-sm);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

/* ============================================
   BUTTON SIZES
   ============================================ */

.btn--small {
  min-height: var(--touch-min);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-base);
}

.btn--large {
  min-height: var(--touch-large);
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--text-xl);
}

.btn--huge {
  min-height: 150px;
  padding: var(--space-xl) var(--space-2xl);
  font-size: var(--text-2xl);
}

/* ============================================
   BUTTON VARIANTS
   ============================================ */

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

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

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

.btn--secondary:hover {
  background: var(--color-secondary-dark);
}

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

.btn--accent:hover {
  background: #d97706;
}

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

.btn--success:hover {
  background: #059669;
}

.btn--danger {
  background: var(--color-error);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3), var(--shadow-md);
}

.btn--danger:hover {
  background: #dc2626;
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.4), var(--shadow-lg);
}

.btn--outline {
  background: transparent;
  border: 3px solid var(--color-primary);
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.15);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3), var(--shadow-md);
  transform: translateY(-2px);
}

.btn--ghost {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08) 0%, rgba(118, 75, 162, 0.08) 100%);
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06), inset 0 0 0 2px rgba(102, 126, 234, 0.2);
  border: 2px solid rgba(102, 126, 234, 0.3);
  font-weight: 600;
}

.btn--ghost:hover {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15), inset 0 0 0 2px rgba(102, 126, 234, 0.3);
  border-color: rgba(102, 126, 234, 0.4);
  transform: translateY(-2px);
}

/* ============================================
   SPECIAL BUTTON STATES
   ============================================ */

.btn--selected {
  background: var(--color-success);
  border-color: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

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

.btn--glow {
  box-shadow: 0 0 20px var(--color-primary-light),
              var(--shadow-lg);
  animation: glow 2s ease-in-out infinite;
}

.btn--gradient-primary {
  background: var(--gradient-primary);
  border: none;
  color: var(--color-white);
  box-shadow: 0 6px 24px rgba(102, 126, 234, 0.4), var(--shadow-lg);
  font-weight: var(--font-bold);
}

.btn--gradient-primary:hover {
  box-shadow: 0 8px 32px rgba(102, 126, 234, 0.5), var(--shadow-xl);
  transform: translateY(-3px) scale(1.02);
}

.btn--gradient-secondary {
  background: var(--gradient-secondary);
  border: none;
  color: var(--color-white);
}

.btn--gradient-success {
  background: var(--gradient-success);
  border: 5px solid var(--color-success);
  color: var(--color-white);
  box-shadow: 0 0 0 6px rgba(76, 175, 80, 0.4), var(--shadow-xl);
  transform: none; /* FIX: Remove scale to prevent cutoff */
  font-weight: var(--font-bold);
}

.btn--glass {
  background: var(--glass-white-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-gray-900);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   BUTTON WITH ICON
   ============================================ */

.btn__icon {
  width: 1.5em;
  height: 1.5em;
  flex-shrink: 0;
}

.btn--icon-only {
  padding: var(--space-md);
  min-width: var(--touch-min);
  aspect-ratio: 1;
}

/* ============================================
   CARD COMPONENT
   ============================================ */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  border: 2px solid var(--color-border);
}

.card:hover:not(.card--glass) {
  box-shadow: var(--shadow-xl);
  transform: translateY(-4px) scale(1.02);
  border-color: rgba(102, 126, 234, 0.3);
}

.card--interactive {
  cursor: pointer;
  user-select: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12), 0 0 0 1px rgba(102, 126, 234, 0.1);
}

.card--interactive:hover {
  box-shadow: 0 8px 24px rgba(102, 126, 234, 0.2), 0 0 0 2px rgba(102, 126, 234, 0.3);
}

/* M6: Enhanced touch feedback for interactive cards */
.card--interactive:active {
  transform: translateY(0) scale(0.98);
  box-shadow: var(--shadow-sm);
}

.card--selected {
  border: 5px solid var(--color-success);
  box-shadow: 0 0 0 6px rgba(76, 175, 80, 0.4), var(--shadow-2xl);
  transform: none; /* FIX: Remove scale to prevent cutoff */
  position: relative;
}

.card--selected::before {
  content: '✓';
  position: absolute;
  top: 6px;
  right: 6px;
  width: 40px;
  height: 40px;
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: bold;
  box-shadow: var(--shadow-xl);
  z-index: 10;
  animation: checkmarkPop 0.3s ease-out;
}

@keyframes checkmarkPop {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.card--disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.card__header {
  margin-bottom: var(--space-md);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.card__subtitle {
  font-size: var(--text-base);
  color: var(--color-text-light);
}

.card__body {
  margin-bottom: var(--space-md);
}

.card__footer {
  border-top: 2px solid var(--color-border);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ============================================
   CARD VARIANTS - Premium effects
   ============================================ */

.card--glass {
  background: var(--glass-white-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-xl);
}

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

.card--gradient-secondary {
  background: var(--gradient-secondary);
  color: var(--color-white);
}

.card--gradient-purple {
  background: var(--gradient-purple);
  color: var(--color-white);
}

.card--elevated {
  transform: translateY(0);
  transition: all var(--transition-base);
}

.card--elevated:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
}

/* ============================================
   INPUT COMPONENT
   ============================================ */

.input {
  width: 100%;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--text-lg);
  color: var(--color-text);
  background: var(--color-white);
  border: 3px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.input::placeholder {
  color: var(--color-text-lighter);
}

.input--error {
  border-color: var(--color-error);
}

.input--error:focus {
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1);
}

/* ============================================
   PROGRESS BAR COMPONENT
   ============================================ */

.progress {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--progress-bar-height);
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  z-index: var(--z-sticky);
}

.progress__dot {
  width: 16px;
  height: 16px;
  border-radius: var(--radius-full);
  background: var(--color-gray-300);
  transition: none; /* FIX: Remove animations per user request */
}

/* Batch 7: Animated progress dots - ANIMATIONS REMOVED */
.progress__dot--complete {
  background: var(--color-success);
  /* animation: progressPop 0.3s ease-out; REMOVED */
}

.progress__dot--current {
  background: var(--color-primary);
  width: 24px;
  height: 24px;
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
  /* animation: progressPulse 0.4s ease-out; REMOVED */
}

/* Clickable progress steps */
.progress__step {
  transition: none; /* REMOVED animations */
}

.progress__step[style*="cursor: pointer"]:hover .progress__dot {
  transform: scale(1.3);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.3);
}

.progress__step[style*="cursor: pointer"]:hover div:last-child {
  color: var(--color-success) !important;
  font-weight: 700 !important;
}

.progress__step[style*="cursor: pointer"]:active .progress__dot {
  transform: scale(1.1);
}

@keyframes progressPop {
  0% {
    transform: scale(0.5);
    opacity: 0;
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

@keyframes progressPulse {
  0% {
    transform: scale(0.8);
    box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
  }
  50% {
    transform: scale(1.1);
    box-shadow: 0 0 0 8px rgba(99, 102, 241, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.2);
  }
}

/* ============================================
   BADGE COMPONENT
   ============================================ */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
}

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

.badge--warning {
  background: var(--color-warning);
}

.badge--error {
  background: var(--color-error);
}

.badge--info {
  background: var(--color-info);
}

/* ============================================
   ON-SCREEN KEYBOARD
   ============================================ */

.keyboard {
  background: var(--color-gray-800);
  border-radius: var(--radius-lg);
  padding: 12px;
  display: grid;
  gap: 8px;
  width: 100%;
  max-width: 100%;
  margin: 0 auto;
}

.keyboard__row {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
}

.keyboard__key {
  background: var(--color-gray-700);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius-md);
  padding: 16px 12px;
  font-size: 20px;
  font-weight: var(--font-bold);
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.keyboard__key:hover {
  background: var(--color-gray-600);
  transform: translateY(-2px);
}

.keyboard__key:active {
  transform: translateY(0);
  background: var(--color-primary);
}

.keyboard__key--wide {
  grid-column: span 2;
}

.keyboard__key--space {
  grid-column: span 4;
}

.keyboard__key--delete {
  background: var(--color-error);
}

.keyboard__key--delete:hover {
  background: #d32f2f;
}

.keyboard__key--shortcut {
  background: var(--color-info);
  font-size: 14px;
  font-weight: var(--font-bold);
}

.keyboard__key--shortcut:hover {
  background: #0288d1;
}

.keyboard__key--caps {
  background: var(--color-gray-600);
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
}

.keyboard__key--caps:hover {
  background: var(--color-primary);
  color: white;
}

.keyboard__key--shift {
  background: var(--color-gray-600);
  font-weight: var(--font-semibold);
  transition: all var(--transition-base);
}

.keyboard__key--shift:hover {
  background: var(--color-warning);
  color: white;
}

/* Price Tracker */
.price-tracker {
  position: fixed;
  bottom: 80px;
  right: var(--space-lg);
  background: var(--gradient-success);
  color: white;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  z-index: 1000;
  min-width: 200px;
  text-align: center;
  /* FIX: Disable initial slide-in animation, keep tracker static */
  /* animation: slideInRight 0.3s ease-out; */
}

.price-tracker__label {
  font-size: var(--text-sm);
  opacity: 0.9;
  margin-bottom: var(--space-xs);
  /* FIX: No animation on text changes */
  transition: none;
}

.price-tracker__amount {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  /* FIX: Remove number animation when price changes */
  transition: none;
}

@keyframes slideInRight {
  from {
    transform: translateX(300px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ============================================
   4. UTILITIES
   ============================================ */

/* ============================================
   LAYOUT UTILITIES
   ============================================ */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.screen {
  width: 100vw;
  height: 100vh; /* Always fill viewport exactly */
  max-height: 100vh; /* Never exceed viewport */
  display: flex;
  flex-direction: column;
  background: var(--gradient-bg-light);
  overflow: hidden; /* No scrolling within screens */
  position: relative;
}

.screen__header {
  padding: 6px 12px;
  display: grid;
  grid-template-columns: 100px 1fr 100px;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border);
  min-height: 45px;
  max-height: 45px;
}

.screen__header > *:nth-child(2) {
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  /* FIX: Ensure header title is properly centered */
  justify-self: center;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  overflow-y: auto; /* Allow scroll only if absolutely necessary */
  overflow-x: hidden;
  /* Account for header and progress bar */
  max-height: calc(100vh - var(--header-height) - var(--progress-bar-height));
}

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

/* ============================================
   FLEXBOX UTILITIES
   ============================================ */

.flex {
  display: flex;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

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

.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-around {
  justify-content: space-around;
}

.gap-xs {
  gap: var(--space-xs);
}

.gap-sm {
  gap: var(--space-sm);
}

.gap-md {
  gap: var(--space-md);
}

.gap-lg {
  gap: var(--space-lg);
}

.gap-xl {
  gap: var(--space-xl);
}

/* ============================================
   GRID UTILITIES
   ============================================ */

.grid {
  display: grid;
}

.grid-cols-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ============================================
   SPACING UTILITIES
   ============================================ */

.m-0 { margin: 0; }
.m-xs { margin: var(--space-xs); }
.m-sm { margin: var(--space-sm); }
.m-md { margin: var(--space-md); }
.m-lg { margin: var(--space-lg); }
.m-xl { margin: var(--space-xl); }
.m-2xl { margin: var(--space-2xl); }

.mt-0 { margin-top: 0; }
.mt-xs { margin-top: var(--space-xs); }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-xs { margin-bottom: var(--space-xs); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.p-0 { padding: 0; }
.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }

/* ============================================
   TEXT UTILITIES
   ============================================ */

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }
.text-3xl { font-size: var(--text-3xl); }
.text-4xl { font-size: var(--text-4xl); }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }
.font-black { font-weight: var(--font-black); }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }
.text-gray { color: var(--color-text-light); }

/* ============================================
   BACKGROUND UTILITIES
   ============================================ */

.bg-white { background-color: var(--color-white); }
.bg-gray { background-color: var(--color-surface); }
.bg-primary { background-color: var(--color-primary); }
.bg-secondary { background-color: var(--color-secondary); }
.bg-accent { background-color: var(--color-accent); }

/* ============================================
   GRADIENT UTILITIES
   ============================================ */

.bg-gradient-primary { background: var(--gradient-primary); }
.bg-gradient-secondary { background: var(--gradient-secondary); }
.bg-gradient-success { background: var(--gradient-success); }
.bg-gradient-sunset { background: var(--gradient-sunset); }
.bg-gradient-ocean { background: var(--gradient-ocean); }
.bg-gradient-purple { background: var(--gradient-purple); }
.bg-gradient-fire { background: var(--gradient-fire); }

/* Background gradients */
.bg-gradient-light { background: var(--gradient-bg-light); }
.bg-gradient-warm { background: var(--gradient-bg-warm); }

/* ============================================
   GLASSMORPHISM UTILITIES
   ============================================ */

.glass {
  background: var(--glass-white);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-strong {
  background: var(--glass-white-strong);
  backdrop-filter: var(--glass-blur-strong);
  -webkit-backdrop-filter: var(--glass-blur-strong);
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.glass-dark {
  background: var(--glass-dark);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

/* ============================================
   VISIBILITY UTILITIES
   ============================================ */

.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;
}

.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* ============================================
   ANIMATION UTILITIES
   ============================================ */

.animate-spin {
  animation: spin 1s linear infinite;
}

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

.animate-bounce {
  animation: bounce 1s infinite;
}

.animate-float {
  animation: float 3s ease-in-out infinite;
}

.animate-slideUp {
  animation: slideUp 0.5s ease-out;
}

.animate-glow {
  animation: glow 2s ease-in-out infinite;
}

.animate-heartbeat {
  animation: heartbeat 1.5s ease-in-out infinite;
}

.transition-all {
  transition: all var(--transition-base);
}

/* ============================================
   ELEVATION/SHADOW UTILITIES
   ============================================ */

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }
.shadow-none { box-shadow: none; }

/* ============================================
   BORDER UTILITIES
   ============================================ */

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* ============================================
   WIDTH/HEIGHT UTILITIES
   ============================================ */

.w-full { width: 100%; }
.w-auto { width: auto; }
.h-full { height: 100%; }
.h-auto { height: auto; }

.max-w-sm { max-width: var(--container-sm); }
.max-w-md { max-width: var(--container-md); }
.max-w-lg { max-width: var(--container-lg); }
.max-w-xl { max-width: var(--container-xl); }

/* ============================================
   PROFESSIONAL ICON SYSTEM
   ============================================ */

/* Icon base */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  margin: 0 auto;
}

.icon--large {
  width: 96px;
  height: 96px;
  font-size: 48px;
}

.icon--huge {
  width: 128px;
  height: 128px;
  font-size: 64px;
}

/* Picture Frame Icon */
.icon-frame {
  position: relative;
  width: 60px;
  height: 60px;
  border: 4px solid currentColor;
  border-radius: var(--radius-sm);
}

.icon-frame::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 30px;
  height: 30px;
  background: currentColor;
  border-radius: 50%;
  opacity: 0.3;
}

.icon-frame::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 8px;
  right: 8px;
  height: 3px;
  background: currentColor;
  opacity: 0.5;
}

/* Printer Icon */
.icon-printer {
  position: relative;
  width: 64px;
  height: 50px;
  background: currentColor;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  opacity: 0.8;
}

.icon-printer::before {
  content: '';
  position: absolute;
  top: -12px;
  left: 8px;
  right: 8px;
  height: 12px;
  background: currentColor;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.icon-printer::after {
  content: '';
  position: absolute;
  bottom: -16px;
  left: 12px;
  right: 12px;
  height: 24px;
  background: currentColor;
  opacity: 0.6;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

/* Email/Envelope Icon */
.icon-envelope {
  position: relative;
  width: 70px;
  height: 50px;
  background: currentColor;
  border-radius: var(--radius-sm);
  opacity: 0.8;
}

.icon-envelope::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0;
  border-left: 35px solid transparent;
  border-right: 35px solid transparent;
  border-top: 25px solid currentColor;
  opacity: 0.9;
}

.icon-envelope::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-left: 35px solid transparent;
  border-right: 35px solid transparent;
  border-bottom: 25px solid rgba(0,0,0,0.2);
}

.icon-envelope::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 0;
  border-left: 35px solid transparent;
  border-right: 35px solid transparent;
  border-top: 25px solid currentColor;
}

.icon-envelope::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 35px solid transparent;
  border-right: 35px solid transparent;
  border-bottom: 25px solid rgba(255, 255, 255, 0.2);
}

/* Star Icon */
.icon-star {
  position: relative;
  width: 70px;
  height: 70px;
}

.icon-star::before {
  content: '★';
  font-size: 70px;
  color: currentColor;
  line-height: 1;
}

/* Document Icon */
.icon-document {
  position: relative;
  width: 50px;
  height: 64px;
  background: currentColor;
  border-radius: var(--radius-sm);
  opacity: 0.8;
}

.icon-document::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 8px;
  right: 8px;
  height: 3px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 2px;
  box-shadow:
    0 8px 0 rgba(255, 255, 255, 0.5),
    0 16px 0 rgba(255, 255, 255, 0.5),
    0 24px 0 rgba(255, 255, 255, 0.5);
}

/* Camera Icon */
.icon-camera {
  position: relative;
  width: 70px;
  height: 56px;
  background: currentColor;
  border-radius: var(--radius-md);
  opacity: 0.8;
}

.icon-camera::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 28px;
  height: 28px;
  border: 4px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
}

.icon-camera::after {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 8px;
  background: currentColor;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

/* Check/Success Icon */
.icon-check {
  position: relative;
  width: 64px;
  height: 64px;
}

.icon-check::before {
  content: '✓';
  font-size: 56px;
  font-weight: bold;
  color: currentColor;
  line-height: 1;
}

/* ============================================
   5. APP SPECIFIC
   ============================================ */

#app {
  width: 100%;
  height: 100%;
  transition: opacity 150ms ease;
}

/* Prevent text selection (kiosk mode) */
* {
  -webkit-user-select: none;
  -moz-user-select: none;
  user-select: none;
}

/* Allow selection only in input fields */
input, textarea {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}

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

@media print {
  /* Hide everything except receipts */
  body {
    background: white;
    overflow: visible;
  }

  .screen__header,
  .btn,
  button,
  #countdown,
  #printBtn {
    display: none !important;
  }

  /* Make receipts print side-by-side on one page */
  .screen__body {
    display: block !important;
    max-height: none !important;
    overflow: visible !important;
    padding: 0 !important;
  }

  /* Receipt container */
  .screen__body > div:first-child {
    display: flex !important;
    gap: 20px !important;
    page-break-inside: avoid;
  }

  .card--glass {
    box-shadow: none !important;
    page-break-inside: avoid;
    border: 2px solid #333 !important;
  }

  /* Ensure images print */
  img {
    max-width: 100% !important;
    height: auto !important;
    page-break-inside: avoid;
  }
}

/* ============================================
   KIOSK-SPECIFIC VIEWPORT CONSTRAINTS
   ============================================ */

/* Ensure content never overflows viewport */
.screen > * {
  box-sizing: border-box;
}

/* Make sure buttons and interactive elements are always visible */
.screen__header {
  flex-shrink: 0; /* Never compress header */
  min-height: var(--header-height);
  max-height: var(--header-height);
}

.progress {
  flex-shrink: 0; /* Never compress progress bar */
}

/* ============================================
   TOAST ANIMATIONS
   ============================================ */
@keyframes slideInRight {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOutRight {
  from {
    transform: translateX(0);
    opacity: 1;
  }
  to {
    transform: translateX(400px);
    opacity: 0;
  }
}