/* ============================================
   Syrian Lira Payment Helper - Premium Design System
   "Digital Gold Standard" Aesthetic
   ============================================ */

/* CSS Custom Properties */
:root {
  /* Premium Color Palette */
  --color-bg-primary: #070714;
  --color-bg-secondary: #0d0d1f;
  --color-bg-card: rgba(20, 20, 40, 0.7);
  --color-bg-glass: rgba(255, 255, 255, 0.03);

  --color-text-primary: #fafafa;
  --color-text-secondary: rgba(255, 255, 255, 0.75);
  --color-text-muted: rgba(255, 255, 255, 0.45);

  /* Old Currency - Rich Copper/Bronze */
  --color-old: #D4A574;
  --color-old-dark: #B8956A;
  --color-old-light: #E8C9A8;
  --color-old-bg: rgba(212, 165, 116, 0.12);
  --color-old-glow: rgba(212, 165, 116, 0.4);

  /* New Currency - Emerald Jewel Tone */
  --color-new: #10B981;
  --color-new-dark: #059669;
  --color-new-light: #34D399;
  --color-new-bg: rgba(16, 185, 129, 0.12);
  --color-new-glow: rgba(16, 185, 129, 0.4);

  /* Accent - Warm Gold */
  --color-accent: #F59E0B;
  --color-accent-light: #FBBF24;
  --color-accent-glow: rgba(245, 158, 11, 0.5);

  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-hover: rgba(255, 255, 255, 0.18);

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-ar: 'Changa', 'Segoe UI', system-ui, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  --font-size-4xl: 3.5rem;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.75rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.6);
  --shadow-glow-old: 0 0 60px rgba(212, 165, 116, 0.25);
  --shadow-glow-new: 0 0 60px rgba(16, 185, 129, 0.25);
  --shadow-glow-accent: 0 0 40px rgba(245, 158, 11, 0.3);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Layout */
  --max-width: 1200px;
  --header-height: 60px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  font-weight: 400;
  letter-spacing: -0.01em;
}

/* RTL Support */
[dir="rtl"] body {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

/* ============================================
   ANIMATED BACKGROUND
   ============================================ */

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 20%, rgba(245, 158, 11, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 60% 60% at 80% 80%, rgba(16, 185, 129, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 70% 50% at 50% 100%, rgba(212, 165, 116, 0.05) 0%, transparent 40%);
  pointer-events: none;
  z-index: -2;
}

/* Animated gradient orbs */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    radial-gradient(circle 400px at 30% 20%, rgba(245, 158, 11, 0.04) 0%, transparent 100%),
    radial-gradient(circle 500px at 70% 70%, rgba(16, 185, 129, 0.03) 0%, transparent 100%);
  pointer-events: none;
  z-index: -1;
  animation: orbFloat 20s ease-in-out infinite;
}

@keyframes orbFloat {

  0%,
  100% {
    transform: translate(0, 0);
  }

  25% {
    transform: translate(30px, -20px);
  }

  50% {
    transform: translate(-20px, 30px);
  }

  75% {
    transform: translate(20px, 10px);
  }
}

/* Noise texture overlay */
.container::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0.015;
  pointer-events: none;
  z-index: 1000;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl);
  position: relative;
}

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

.header {
  text-align: center;
  padding: var(--space-2xl) 0 var(--space-xl);
  position: relative;
  animation: fadeInDown 0.8s var(--transition-bounce);
}

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header__title {
  font-family: var(--font-display);
  font-size: var(--font-size-3xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--color-new-light) 0%, var(--color-accent-light) 50%, var(--color-new-light) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
  animation: shimmer 4s linear infinite;
}

[dir="rtl"] .header__title {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

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

  100% {
    background-position: 200% center;
  }
}

.header__subtitle {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-weight: 500;
}

.header__controls {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  display: flex;
  gap: var(--space-sm);
}

[dir="rtl"] .header__controls {
  right: auto;
  left: var(--space-xl);
}

/* ============================================
   INFO TOOLTIP
   ============================================ */

.info-tooltip {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  cursor: help;
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  transition: var(--transition-base);
}

.info-tooltip:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
  box-shadow: var(--shadow-glow-accent);
  transform: scale(1.1);
}

.info-tooltip__content {
  position: absolute;
  bottom: calc(100% + 12px);
  left: 50%;
  transform: translateX(-50%) scale(0.9);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border-hover);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-xs);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-fast);
  z-index: 100;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
}

.info-tooltip:hover .info-tooltip__content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) scale(1);
}

/* ============================================
   LANGUAGE TOGGLE
   ============================================ */

.lang-toggle {
  display: none;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.lang-toggle__btn {
  padding: var(--space-xs) var(--space-md);
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  font-family: inherit;
}

.lang-toggle__btn:hover {
  color: var(--color-text-primary);
}

.lang-toggle__btn.active {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: #0a0a0a;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ============================================
   PAYMENT INPUT SECTION
   ============================================ */

.payment-section {
  background: var(--color-bg-card);
  backdrop-filter: blur(24px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl) var(--space-2xl);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
  animation: fadeInUp 0.8s var(--transition-bounce) 0.1s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Gradient border effect */
.payment-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.5;
}

/* Inner glow */
.payment-section::after {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 150px;
  background: radial-gradient(ellipse at center top, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.payment-input-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  position: relative;
  z-index: 1;
}

.payment-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
}

.payment-input-wrapper>.payment-input {
  flex: 1 1 300px;
  min-width: 0;
}


.payment-input {
  flex: 1;
  font-size: var(--font-size-4xl);
  font-weight: 600;
  font-family: var(--font-display);
  background: var(--color-bg-glass);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-lg) var(--space-xl);
  color: var(--color-text-primary);
  text-align: center;
  transition: var(--transition-base);
  letter-spacing: -0.02em;
}

[dir="rtl"] .payment-input {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

.payment-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.15), var(--shadow-glow-accent);
}

/* Currency-specific focus styles */
.payment-input[data-currency="old"]:focus {
  border-color: var(--color-old);
  box-shadow: 0 0 0 4px rgba(212, 165, 116, 0.2), var(--shadow-glow-old);
}

.payment-input[data-currency="new"]:focus {
  border-color: var(--color-new);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2), var(--shadow-glow-new);
}

.payment-input::placeholder {
  color: var(--color-text-muted);
  font-weight: 400;
}


/* ============================================
   PAYMENT DISPLAY

/* ============================================
   PANELS CONTAINER
   ============================================ */

.panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  direction: ltr;
}

@media (max-width: 1120px) {
  .panels {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .panels {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  /* Compact panel styling */
  .panel {
    padding: var(--space-md);
  }

  .panel__header {
    margin-bottom: var(--space-md);
    gap: var(--space-sm);
  }

  .panel__icon {
    width: 187px;
    height: 80px;
  }

  .panel__title {
    font-size: var(--font-size-md);
  }


  /* Compact slider controls */
  .slider-container {
    margin-bottom: var(--space-md);
  }

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

  .slider-btn {
    width: 36px;
    height: 36px;
    font-size: var(--font-size-md);
  }

  .direct-input-wrapper {
    margin-top: var(--space-sm);
  }

  .direct-input {
    width: 120px;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-sm);
  }

  /* Compact breakdown */
  .breakdown {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
  }

  .breakdown__title {
    margin-bottom: var(--space-sm);
    font-size: 0.65rem;
  }

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

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

  .breakdown__note-img {
    width: 140px;
    height: 70px;
  }

  .breakdown__denomination {
    font-size: var(--font-size-sm);
  }

  .breakdown__multiplier {
    font-size: var(--font-size-md);
    min-width: 50px;
  }

  .breakdown__empty {
    padding: var(--space-md);
  }
}

@media (max-width: 1024px) {
  .payment-input-wrapper {
    flex-direction: column;
  }

  .payment-input-wrapper>.payment-input {
    flex: 1 1 100%;
    width: 100%;
  }

  .currency-toggle {
    width: 100%;
    justify-content: center;
  }

  .currency-toggle__btn {
    flex: 1;
    text-align: center;
  }
}

/* ============================================
   CURRENCY PANEL
   ============================================ */

.panel {
  background: var(--color-bg-card);
  backdrop-filter: blur(24px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-xl);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.panel--old {
  animation: fadeInUp 0.8s var(--transition-bounce) 0.2s both;
}

.panel--new {
  animation: fadeInUp 0.8s var(--transition-bounce) 0.3s both;
}

/* Accent strip */
.panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
}

.panel--old::before {
  background: linear-gradient(90deg, var(--color-old-dark), var(--color-old), var(--color-old-light));
}

.panel--new::before {
  background: linear-gradient(90deg, var(--color-new-dark), var(--color-new), var(--color-new-light));
}

/* Side accent */
.panel::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3px;
  opacity: 0;
  transition: var(--transition-base);
}

.panel--old::after {
  left: 0;
  background: linear-gradient(180deg, var(--color-old), transparent);
}

.panel--new::after {
  right: 0;
  background: linear-gradient(180deg, var(--color-new), transparent);
}

.panel:hover::after {
  opacity: 1;
}

.panel:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
}

.panel--old:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow-old);
}

.panel--new:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow-new);
}

.panel__header {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.panel__icon {
  width: 212px;
  height: 92px;
  border-radius: var(--radius-md);
  object-fit: cover;
  box-shadow: var(--shadow-md);
  transition: var(--transition-base);
}

.panel:hover .panel__icon {
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.panel__title {
  font-family: var(--font-display);
  font-size: var(--font-size-xl);
  font-weight: 600;
  letter-spacing: -0.02em;
}

[dir="rtl"] .panel__title {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

.panel--old .panel__title {
  color: var(--color-old-light);
}

.panel--new .panel__title {
  color: var(--color-new-light);
}


/* ============================================
   SLIDER CONTROLS
   ============================================ */

.slider-container {
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.slider-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.slider-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: var(--font-size-xl);
  cursor: pointer;
  transition: var(--transition-base);
  font-family: inherit;
  font-weight: 300;
}

.slider-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.08);
  box-shadow: var(--shadow-glow-accent);
}

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

.slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--color-bg-glass);
  border-radius: var(--radius-full);
  outline: none;
  cursor: pointer;
  border: 1px solid var(--color-border);
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: var(--radius-full);
  cursor: grab;
  box-shadow: var(--shadow-md), 0 0 15px var(--color-accent-glow);
  transition: var(--transition-base);
  border: 2px solid rgba(255, 255, 255, 0.2);
}

.slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: var(--shadow-lg), 0 0 25px var(--color-accent-glow);
}

.slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.05);
}

.slider::-moz-range-thumb {
  width: 26px;
  height: 26px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  cursor: grab;
  box-shadow: var(--shadow-md), 0 0 15px var(--color-accent-glow);
}

.panel--old .slider::-webkit-slider-thumb {
  background: linear-gradient(135deg, var(--color-old-dark), var(--color-old-light));
  box-shadow: var(--shadow-md), 0 0 15px var(--color-old-glow);
}

.panel--old .slider::-moz-range-thumb {
  background: linear-gradient(135deg, var(--color-old-dark), var(--color-old-light));
  box-shadow: var(--shadow-md), 0 0 15px var(--color-old-glow);
}

.panel--new .slider::-webkit-slider-thumb {
  background: linear-gradient(135deg, var(--color-new-dark), var(--color-new-light));
  box-shadow: var(--shadow-md), 0 0 15px var(--color-new-glow);
}

.panel--new .slider::-moz-range-thumb {
  background: linear-gradient(135deg, var(--color-new-dark), var(--color-new-light));
  box-shadow: var(--shadow-md), 0 0 15px var(--color-new-glow);
}

/* ============================================
   DIRECT INPUT
   ============================================ */

.direct-input-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: var(--space-lg);
  flex-wrap: wrap;
  /* Allow button to wrap if input is too wide */
  gap: var(--space-sm);
  position: relative;
  /* Context for absolute positioning if needed */
}

.direct-input {
  width: 160px;
  margin-top: var(--space-md);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  /* Matching amount-value properties */
  font-family: var(--font-display);
  font-size: var(--font-size-lg);
  font-weight: 700;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;

  text-align: center;
  transition: var(--transition-base);
}

[dir="rtl"] .direct-input {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

/* Panel-specific input colors */
.panel--old .direct-input {
  color: var(--color-old-light);
}

.panel--new .direct-input {
  color: var(--color-new-light);
}

.direct-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

/* Check Button */
.btn-check {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 0;
  height: 0;
  padding: 0;
  overflow: hidden;
  border-radius: var(--radius-full);
  border: none;
  color: white;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-10px) scale(0.9);
  /* Subtle slide in */
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  /* Bouncy enter */
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-check.visible {
  width: 36px;
  height: 36px;
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
}

.btn-check:hover {
  transform: translateY(-2px) scale(1.05);
  /* Lift effect */
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.btn-check svg {
  width: 20px;
  height: 20px;
  stroke-width: 2.5;
  /* Bolder icon */
}

/* Panel-specific Button Gradients */
/* Old Lira - Rich Gold/Bronze */
.panel--old .btn-check {
  background: linear-gradient(135deg, #d97706, #b45309);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.panel--old .btn-check:hover {
  background: linear-gradient(135deg, #f59e0b, #d97706);
}

/* New Lira - Vibrant Emerald */
.panel--new .btn-check {
  background: linear-gradient(135deg, #059669, #047857);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.panel--new .btn-check:hover {
  background: linear-gradient(135deg, #10b981, #059669);
}

/* ============================================
   DENOMINATION BREAKDOWN
   ============================================ */

.breakdown {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.breakdown__title {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-md);
  font-weight: 600;
}

.breakdown__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.breakdown__item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg-glass);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  animation: slideIn 0.4s var(--transition-bounce);
  transition: var(--transition-base);
}

.breakdown__item:hover {
  border-color: var(--color-border-hover);
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(4px);
}

[dir="rtl"] .breakdown__item:hover {
  transform: translateX(-4px);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

[dir="rtl"] .breakdown__item {
  animation-name: slideInRtl;
}

@keyframes slideInRtl {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.breakdown__note-img {
  width: 260px;
  height: 114px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  opacity: 0.95;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
}

.breakdown__item:hover .breakdown__note-img {
  opacity: 1;
  transform: scale(1.02);
}

.breakdown__denomination {
  flex: 1;
  font-weight: 600;
  font-size: var(--font-size-lg);
  font-family: var(--font-display);
}

[dir="rtl"] .breakdown__denomination {
  font-family: var(--font-family-ar);
}

.breakdown__multiplier {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-accent-light);
  min-width: 70px;
  text-align: right;
  font-family: var(--font-display);
  text-shadow: 0 0 20px var(--color-accent-glow);
}

[dir="rtl"] .breakdown__multiplier {
  text-align: left;
  font-family: var(--font-family-ar);
}

.breakdown__empty {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-xl);
  font-style: italic;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  animation: fadeIn 1s ease 0.5s both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.footer a {
  color: var(--color-accent-light);
  text-decoration: none;
  transition: var(--transition-fast);
}

.footer a:hover {
  color: var(--color-accent);
  text-shadow: 0 0 20px var(--color-accent-glow);
}

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

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.7;
  }
}

.updating {
  animation: pulse 0.3s ease;
}

/* Value change animation */
@keyframes valueChange {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.02);
  }

  100% {
    transform: scale(1);
  }
}


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

@media (max-width: 640px) {
  :root {
    --font-size-3xl: 1.75rem;
    --font-size-4xl: 2.5rem;
  }

  .container {
    padding: var(--space-md);
  }

  .header {
    padding: var(--space-xl) 0 var(--space-lg);
  }

  .header__title {
    font-size: var(--font-size-2xl);
  }

  .header__controls {
    position: static;
    justify-content: center;
    margin-top: var(--space-md);
  }

  .payment-section {
    padding: var(--space-lg);
  }

  .payment-input {
    font-size: var(--font-size-2xl);
    padding: var(--space-md);
  }

  .payment-input-wrapper {
    flex-direction: column;
    gap: var(--space-md);
  }

  .quick-actions {
    flex-direction: column;
  }

  .quick-btn {
    width: 100%;
  }

  .panel {
    padding: var(--space-lg);
  }

  .panel__icon {
    width: 187px;
    height: 80px;
  }

  .amount-value {
    font-size: var(--font-size-3xl);
  }

  .breakdown__note-img {
    width: 160px;
    height: 80px;
  }
}

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

@media print {
  body {
    background: white;
    color: black;
  }

  body::before,
  body::after,
  .container::before {
    display: none;
  }

  .header__controls,
  .quick-actions,
  .slider-container {
    display: none;
  }

  .panel {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ccc;
  }

  .payment-section {
    box-shadow: none;
    border: 1px solid #ccc;
  }
}

/* ============================================
   ACCESSIBILITY - Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================
   MOBILE REFACTOR (max-width: 480px)
   ============================================ */

@media (max-width: 480px) {
  :root {
    --space-xl: 1rem;
    --space-2xl: 1.5rem;
    --font-size-3xl: 1.5rem;
    --font-size-4xl: 2rem;
    --header-height: 50px;
  }

  /* Compact Header */
  .header {
    padding: var(--space-lg) 0 var(--space-md);
  }

  .header__subtitle {
    font-size: 0.8rem;
  }

  /* Compact Payment Input */
  .payment-input {
    font-size: 1.75rem;
    padding: var(--space-md) var(--space-sm);
  }

  .currency-toggle {
    width: 100%;
  }

  .currency-toggle__btn {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.75rem;
  }

  /* Compact Payment Display */
  .payment-display {
    padding-top: var(--space-md);
    margin-top: var(--space-md);
    gap: var(--space-sm);
  }

  .payment-display__item {
    padding: var(--space-sm);
  }

  .payment-display__value {
    font-size: 1.1rem;
  }

  .quick-btn {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.75rem;
  }

  /* Compact Panels - SIDE BY SIDE GRID */
  .panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xs);
    align-items: start;
  }

  .panel {
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    min-height: 100%;
  }

  .panel__header {
    margin-bottom: var(--space-sm);
    flex-direction: column;
    /* Stack icon and title to save width */
    align-items: center;
    gap: var(--space-xs);
    text-align: center;
  }

  /* Reduced Icon Size for 2-col layout */
  .panel__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
  }

  .panel__title {
    font-size: 1rem;
    white-space: nowrap;
    /* Prevent wrapping if possible */
  }


  /* Compact Slider & Inputs */
  .slider-container {
    margin-bottom: var(--space-sm);
  }

  .slider-wrapper {
    gap: 2px;
    /* Very tight gap */
  }

  .slider-btn {
    width: 24px;
    height: 24px;
    font-size: 1rem;
    padding: 0;
    line-height: 1;
  }

  /* Hide slider track to save space if needed, or make it small */
  .slider {
    height: 4px;
  }

  .direct-input-wrapper {
    margin-top: var(--space-xs);
  }

  .direct-input {
    width: 100%;
    font-size: 0.9rem;
    padding: 4px;
    text-align: center;
  }

  /* GRID BREAKDOWN - Single column inside each card */
  .breakdown {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
  }

  .breakdown__title {
    font-size: 0.8rem;
    margin-bottom: var(--space-xs);
  }

  .breakdown__list {
    display: grid;
    grid-template-columns: 1fr;
    /* 1 col per card */
    gap: var(--space-xs);
  }

  .breakdown__item {
    flex-direction: row;
    /* Horizontal inside the item */
    text-align: left;
    padding: 4px;
    gap: var(--space-xs);
    align-items: center;
    justify-content: flex-start;
  }

  [dir="rtl"] .breakdown__item {
    text-align: right;
  }

  .breakdown__note-img {
    width: 30px;
    /* Tiny preview */
    height: auto;
    margin-bottom: 0;
  }

  .breakdown__denomination {
    font-size: 0.7rem;
    display: none;
    /* Hide text denomination to save space, rely on image/multiplier */
  }

  .breakdown__multiplier {
    text-align: center;
    width: auto;
    font-size: 0.9rem;
    font-weight: bold;
    margin-left: auto;
    /* Push to end */
  }

  [dir="rtl"] .breakdown__multiplier {
    margin-left: 0;
    margin-right: auto;
  }

  /* Footer adjustments */
  .footer {
    padding: var(--space-lg) 0;
    font-size: 0.7rem;
  }
}

/* ============================================
   CALCULATE / EDIT FLOW
   ============================================ */

.hidden {
  display: none !important;
}

/* Change Amount Button (Edit Mode) */
.change-amount-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-xl);
  animation: fadeInDown 0.5s var(--transition-bounce);
}

.btn-change-amount {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-base);
  font-family: inherit;
  backdrop-filter: blur(12px);
}

.btn-change-amount:hover {
  background: var(--color-bg-card);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm), var(--shadow-glow-accent);
}

.btn-change-amount .icon {
  font-size: 1.1em;
  color: var(--color-accent);
}

/* Calculate Button (Action) */
.btn-calculate {
  width: 100%;
  padding: var(--space-md) var(--space-xl);
  margin-top: var(--space-lg);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border: none;
  border-radius: var(--radius-xl);
  color: #000;
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-md), var(--shadow-glow-accent);
  transition: var(--transition-base);
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  text-transform: uppercase;
  position: relative;
  overflow: hidden;
}

[dir="rtl"] .btn-calculate {
  font-family: var(--font-family-ar);
  letter-spacing: 0;
}

.btn-calculate:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: var(--shadow-lg), 0 0 30px var(--color-accent-glow);
}

.btn-calculate:active {
  transform: scale(0.98);
}

.btn-calculate::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(255, 255, 255, 0.2), transparent);
  opacity: 0;
  transition: var(--transition-fast);
}

.btn-calculate:hover::after {
  opacity: 1;
}

/* Mobile adjustments for new buttons */
@media (max-width: 800px) {
  .btn-calculate {
    padding: var(--space-md);
    font-size: 1.25rem;
    margin-top: var(--space-md);
  }

  .change-amount-container {
    margin-bottom: var(--space-md);
  }

  /* Compact Panels - SIDE BY SIDE GRID for Phones & Small Tablets */
  .panels {
    display: grid !important;
    /* Force override */
    grid-template-columns: 1fr 1fr !important;
    gap: var(--space-xs);
    align-items: start;
  }

  .panel {
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    min-height: 100%;
    min-width: 0;
    /* Crucial for preventing grid blowout */
    overflow: hidden;
    /* clip content */
  }

  .panel__header {
    margin-bottom: var(--space-sm);
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    text-align: center;
  }

  /* Reduced Icon Size for 2-col layout */
  .panel__icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
  }

  .panel__title {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }


  /* Compact Slider & Inputs */
  .slider-container {
    margin-bottom: var(--space-sm);
  }

  .slider-wrapper {
    gap: 1px;
  }

  .slider-btn {
    width: 22px;
    height: 22px;
    font-size: 0.9rem;
    padding: 0;
    line-height: 1;
  }

  .slider {
    height: 4px;
    width: 100%;
    min-width: 0;
  }

  .direct-input-wrapper {
    margin-top: var(--space-xs);
  }

  .direct-input {
    width: 100%;
    font-size: 1.1rem;
    /* Match amount-value size */
    padding: 2px;
    text-align: center;
  }

  /* GRID BREAKDOWN - Single column inside each card */
  .breakdown {
    margin-top: var(--space-sm);
    padding-top: var(--space-sm);
    border-top: 1px solid var(--color-border);
  }

  .breakdown__title {
    font-size: 0.75rem;
    margin-bottom: var(--space-xs);
  }

  .breakdown__list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .breakdown__item {
    flex-direction: row;
    text-align: left;
    padding: 3px;
    gap: 4px;
    align-items: center;
    justify-content: flex-start;
  }

  [dir="rtl"] .breakdown__item {
    text-align: right;
  }

  .breakdown__note-img {
    width: 28px;
    height: auto;
    margin-bottom: 0;
  }

  .breakdown__denomination {
    display: none;
  }

  .breakdown__multiplier {
    text-align: center;
    width: auto;
    font-size: 0.8rem;
    font-weight: bold;
    margin-left: auto;
  }

  [dir="rtl"] .breakdown__multiplier {
    margin-left: 0;
    margin-right: auto;
  }

  /* Footer adjustments */
  .footer {
    padding: var(--space-lg) 0;
    font-size: 0.7rem;
  }

}