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

/* Performance optimizations */
*,
*::before,
*::after {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

:root {
  /* Enhanced Gold Palette */
  --gold-primary: #ffd700;
  --gold-secondary: #f0b90b;
  --gold-dark: #b8860b;
  --gold-light: #ffe55c;
  --gold-glow: rgba(255, 215, 0, 0.35);

  /* Enhanced BTC Palette */
  --btc-primary: #f7931a;
  --btc-secondary: #ff9f2e;
  --btc-glow: rgba(247, 147, 26, 0.35);

  /* Silver accent */
  --silver-primary: #c0c0c0;
  --silver-glow: rgba(192, 192, 192, 0.3);

  /* USD Palette */
  --usdegp-primary: #00b894;
  --usdegp-glow: rgba(0, 184, 148, 0.35);

  /* Modern Dark Background */
  --bg-primary: #080b10;
  --bg-secondary: #0f1419;
  --bg-tertiary: #1a1f2a;
  --bg-card: rgba(22, 28, 38, 0.85);
  --bg-card-hover: rgba(28, 36, 48, 0.95);
  --bg-glass: rgba(255, 255, 255, 0.02);
  --bg-gradient: linear-gradient(135deg, #080b10 0%, #0f1419 50%, #0a0e14 100%);

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #8b99a8;
  --text-muted: #5a6676;

  /* Status Colors */
  --positive: #00d26a;
  --positive-glow: rgba(0, 210, 106, 0.3);
  --negative: #ff4757;
  --negative-glow: rgba(255, 71, 87, 0.3);
  --warning: #ffa502;

  /* Border & Shadow */
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow-gold:
    0 0 50px rgba(255, 215, 0, 0.2), 0 0 100px rgba(255, 215, 0, 0.1);
  --shadow-glow-btc:
    0 0 50px rgba(247, 147, 26, 0.2), 0 0 100px rgba(247, 147, 26, 0.1);

  /* Transitions */
  --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-fast: all 0.2s ease;

  /* Blur */
  --blur-sm: blur(8px);
  --blur-md: blur(16px);
  --blur-lg: blur(24px);
}

/* Smooth scrolling - only when reduced motion is not preferred */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  font-family:
    "Inter",
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

/* Animated ambient background */
body::before {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(
      ellipse at 25% 15%,
      rgba(255, 215, 0, 0.08) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 75% 85%,
      rgba(247, 147, 26, 0.06) 0%,
      transparent 50%
    ),
    radial-gradient(
      ellipse at 50% 50%,
      rgba(100, 100, 150, 0.03) 0%,
      transparent 60%
    );
  animation: ambientFloat 20s ease-in-out infinite;
  pointer-events: none;
  z-index: -1;
}

@keyframes ambientFloat {
  0%,
  100% {
    transform: translate(0, 0) rotate(0deg);
  }
  25% {
    transform: translate(2%, 1%) rotate(1deg);
  }
  50% {
    transform: translate(-1%, 2%) rotate(-1deg);
  }
  75% {
    transform: translate(-2%, -1%) rotate(0.5deg);
  }
}

/* Premium scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(
    180deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 50%,
    var(--btc-primary) 100%
  );
  border-radius: 5px;
  border: 2px solid var(--bg-secondary);
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    var(--gold-light) 0%,
    var(--gold-primary) 50%,
    var(--btc-secondary) 100%
  );
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
  position: relative;
}

/* Header - Premium Glass Design */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 24px;
  position: relative;
  background: linear-gradient(
    135deg,
    rgba(22, 28, 38, 0.9) 0%,
    rgba(30, 37, 48, 0.85) 50%,
    rgba(22, 28, 38, 0.9) 100%
  );
  border-radius: 28px;
  box-shadow:
    var(--shadow-lg),
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    inset 0 -1px 0 rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  overflow: hidden;
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
}

/* Animated gradient border */
.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--gold-primary) 20%,
    var(--gold-secondary) 40%,
    var(--btc-primary) 60%,
    var(--btc-secondary) 80%,
    transparent 100%
  );
  background-size: 200% 100%;
  animation: gradientShift 4s ease-in-out infinite;
}

@keyframes gradientShift {
  0%,
  100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

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

/* Subtle glow effect on bottom */
.header::after {
  content: "";
  position: absolute;
  bottom: -50%;
  left: 25%;
  width: 50%;
  height: 100%;
  background: radial-gradient(
    ellipse at center,
    rgba(255, 215, 0, 0.1) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.logo {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-icon-wrapper {
  position: relative;
  width: 70px;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.25),
    rgba(247, 147, 26, 0.25)
  );
  border-radius: 20px;
  border: 2px solid var(--border-color);
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.2);
}

.logo-icon-wrapper:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 30px rgba(255, 215, 0, 0.4);
  border-color: var(--gold-primary);
}

/* SVG Icon Styles */
.logo-icon {
  position: absolute;
  width: 24px;
  height: 24px;
  stroke-width: 2;
}

.logo-icon.gold-icon {
  left: 10px;
  top: 12px;
  color: var(--gold-primary);
}

.logo-icon.btc-icon {
  right: 10px;
  bottom: 12px;
  color: var(--btc-primary);
  width: 20px;
  height: 20px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.logo-subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 400;
  opacity: 0.8;
  letter-spacing: 0.5px;
}

.logo h1 {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--gold-primary), var(--btc-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
  margin: 0;
  line-height: 1.2;
}

.last-update {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.update-icon {
  width: 20px;
  height: 20px;
  color: var(--gold-primary);
  opacity: 0.8;
}

.update-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.update-text span:first-child {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.7;
}

.update-text span:last-child {
  color: var(--gold-primary);
  font-weight: 600;
  font-size: 0.95rem;
}

.header .refresh-btn {
  padding: 12px 24px;
  font-size: 0.95rem;
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
}

/* Currency Selector */
.currency-selector {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.currency-selector label {
  color: var(--text-secondary);
  font-weight: 500;
}

.currency-selector select {
  padding: 10px 20px;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  transition: border-color 0.3s;
}

.currency-selector select:hover,
.currency-selector select:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.2);
}

.refresh-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  font-size: 0.95rem;
  border: none;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 50%,
    var(--btc-primary) 100%
  );
  background-size: 200% 100%;
  color: #000;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: var(--transition-bounce);
  position: relative;
  overflow: hidden;
  box-shadow:
    0 4px 20px rgba(255, 215, 0, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

/* Shine effect */
.refresh-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: left 0.6s ease;
}

.refresh-btn:hover::before {
  left: 100%;
}

.refresh-btn:hover {
  transform: translateY(-4px) scale(1.02);
  background-position: 100% 50%;
  box-shadow:
    var(--shadow-glow-gold),
    0 8px 30px rgba(255, 215, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.refresh-btn:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow:
    0 2px 15px rgba(255, 215, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

/* Loading state */
.refresh-btn.loading {
  pointer-events: none;
  opacity: 0.85;
}

.refresh-btn.loading .refresh-icon {
  animation: spin 1s linear infinite;
}

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

.refresh-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.refresh-btn:hover .refresh-icon {
  transform: rotate(180deg);
}

/* Icon Utility Classes */
.gold-color {
  color: var(--gold-primary);
}

.btc-color {
  color: var(--btc-primary);
}

.stocks-color {
  color: #4caf50;
}

.usdegp-color {
  color: var(--usdegp-primary);
}

.section-icon {
  width: 28px;
  height: 28px;
  vertical-align: middle;
  margin-right: 8px;
}

.input-icon {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 6px;
  opacity: 0.8;
}

.result-icon {
  width: 22px;
  height: 22px;
  vertical-align: middle;
  margin-right: 8px;
}

.chart-icon {
  width: 22px;
  height: 22px;
  vertical-align: middle;
  margin-right: 8px;
}

.live-icon {
  width: 14px;
  height: 14px;
  margin-right: 4px;
}

.footer-icon {
  width: 16px;
  height: 16px;
  vertical-align: middle;
  margin-right: 6px;
  opacity: 0.7;
}

/* Price Cards */
.price-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.card {
  background: rgba(30, 37, 48, 0.95);
  border-radius: 20px;
  padding: 28px;
  border: 1px solid var(--border-color);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.05), transparent);
  pointer-events: none;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-soft);
  border-color: rgba(255, 255, 255, 0.2);
}

.gold-card {
  border-top: 4px solid var(--gold-primary);
}

.gold-card:hover {
  box-shadow: var(--shadow-glow-gold);
}

.btc-card {
  border-top: 4px solid var(--btc-primary);
}

.btc-card:hover {
  box-shadow: var(--shadow-glow-btc);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 20px;
}

.card-icon {
  font-size: 2.5rem;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
}

.gold-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.2),
    rgba(184, 134, 11, 0.2)
  );
}

.btc-icon {
  background: linear-gradient(
    135deg,
    rgba(247, 147, 26, 0.2),
    rgba(232, 133, 10, 0.2)
  );
}

.card-header h2 {
  font-size: 1.4rem;
  font-weight: 600;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

/* Gold Price Table */
.gold-price-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.gold-price-table th,
.gold-price-table td {
  padding: 12px 8px;
  text-align: center;
}

.gold-price-table th {
  color: var(--text-secondary);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
}

.gold-price-table th:first-child,
.gold-price-table td:first-child {
  text-align: left;
}

.gold-price-table .row-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.gold-price-table .sell-row td:not(.row-label) {
  color: var(--positive);
  font-weight: 600;
  font-size: 1rem;
}

.gold-price-table .buy-row td:not(.row-label) {
  color: var(--gold-primary);
  font-weight: 600;
  font-size: 1rem;
}

.gold-price-table tbody tr {
  border-bottom: 1px solid var(--border-color);
}

.gold-price-table tbody tr:last-child {
  border-bottom: none;
}

.price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-color);
}

.price-row:last-child {
  border-bottom: none;
}

.price-row .label {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.price-row .price {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-footer {
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.change {
  display: flex;
  align-items: center;
  gap: 10px;
}

.change-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.change-value {
  font-weight: 600;
  font-size: 1rem;
}

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

.change-value.negative {
  color: var(--negative);
}

/* Data Source Indicator */
.data-source {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 0.8rem;
}

.source-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--text-secondary);
}

.source-dot.live {
  background-color: var(--positive);
  box-shadow: 0 0 6px var(--positive);
}

.source-dot.fallback {
  background-color: #f59e0b;
}

.source-dot.loading {
  background-color: var(--text-secondary);
}

.source-text {
  color: var(--text-secondary);
}

.source-text.live {
  color: var(--positive);
}

.source-text.fallback {
  color: #f59e0b;
}

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

/* Section Titles - Enhanced */
.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 28px;
  color: var(--text-primary);
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  letter-spacing: -0.02em;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(
    90deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 50%,
    transparent 100%
  );
  border-radius: 4px;
}

.karats-section {
  margin-bottom: 40px;
}

.karats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 15px;
}

.karat-card {
  background: rgba(30, 37, 48, 0.95);
  border-radius: 16px;
  padding: 22px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

.karat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.karat-card::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(
    from 0deg,
    transparent,
    var(--gold-primary),
    transparent 30%
  );
  opacity: 0;
  transition: opacity 0.5s;
  animation: rotate 4s linear infinite paused;
}

.karat-card:hover::before {
  opacity: 0.1;
  animation-play-state: running;
}

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

.karat-card:hover {
  transform: translateY(-5px) scale(1.02);
  border-color: var(--gold-primary);
  box-shadow: var(--shadow-glow-gold);
}

.karat-header {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold-primary);
  margin-bottom: 5px;
}

.karat-purity {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.karat-price {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.karat-unit {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* Egyptian Gold Pound Section */
.egypt-gold-section {
  margin-bottom: 40px;
}

.egypt-gold-card {
  background: linear-gradient(
    135deg,
    var(--bg-card) 0%,
    rgba(255, 215, 0, 0.1) 100%
  );
  border-radius: 16px;
  padding: 25px;
  border: 2px solid var(--gold-primary);
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.15);
}

.egypt-gold-info {
  text-align: center;
  margin-bottom: 20px;
}

.egypt-gold-description {
  color: var(--text-secondary);
  font-size: 1rem;
  margin: 0;
}

.egypt-gold-prices {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.egypt-price-item {
  text-align: center;
  padding: 15px;
  background: var(--bg-card);
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.egypt-price-item.sell {
  border-color: var(--positive);
  background: rgba(34, 197, 94, 0.1);
}

.egypt-price-item.buy {
  border-color: var(--negative);
  background: rgba(239, 68, 68, 0.1);
}

.egypt-price-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.egypt-price-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold-primary);
}

.egypt-price-item.sell .egypt-price-value {
  color: var(--positive);
}

.egypt-price-item.buy .egypt-price-value {
  color: var(--negative);
}

/* Calculator Section */
.calculator-section {
  margin-bottom: 40px;
}

.calculator-section .section-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 5px;
}

.calculator-section .section-title::after {
  left: 50%;
  transform: translateX(-50%);
}

.calc-subtitle {
  display: block;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-top: 5px;
}

.calculator {
  background: rgba(30, 37, 48, 0.95);
  border-radius: 24px;
  padding: 35px;
  border: 2px solid var(--border-color);
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.calculator::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.03),
    transparent 50%,
    rgba(247, 147, 26, 0.03)
  );
  pointer-events: none;
}

.calc-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.calc-input-group label {
  display: flex;
  align-items: center;
  font-size: 0.95rem;
  color: var(--gold-primary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.calc-input-group input,
.calc-input-group select {
  padding: 14px 16px;
  font-size: 1.05rem;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-smooth);
  font-weight: 500;
}

.calc-input-group input:focus,
.calc-input-group select:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 20px rgba(255, 215, 0, 0.25);
  transform: translateY(-2px);
}

/* Number Stepper for Weight */
.number-stepper {
  display: grid;
  grid-template-columns: 40px 1fr 40px;
  gap: 8px;
  align-items: center;
}

.number-stepper input#calcWeight {
  text-align: center;
}

.stepper-btn {
  height: 44px;
  width: 40px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-card));
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.stepper-btn i {
  width: 18px;
  height: 18px;
  stroke-width: 2.5;
}

.stepper-btn:hover {
  border-color: var(--gold-primary);
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.15);
  color: var(--gold-primary);
}

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

.calc-result {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 30px;
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.2),
    rgba(184, 134, 11, 0.2)
  );
  border-radius: 20px;
  border: 3px solid var(--gold-secondary);
  box-shadow:
    inset 0 0 40px rgba(255, 215, 0, 0.1),
    0 4px 20px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
}

.calc-result::before {
  content: "💰";
  position: absolute;
  right: 25px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3.5rem;
  opacity: 0.15;
  filter: blur(1px);
}

.calc-result-label {
  display: flex;
  align-items: center;
  font-size: 1.15rem;
  color: var(--text-primary);
  font-weight: 600;
  position: relative;
  z-index: 1;
}

.calc-result-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gold-primary);
  text-shadow:
    0 0 25px rgba(255, 215, 0, 0.5),
    0 2px 4px rgba(0, 0, 0, 0.3);
  position: relative;
  z-index: 1;
  letter-spacing: 1px;
}

/* Charts Section */
.charts-section {
  margin-bottom: 40px;
}

/* Gold Info Section - Premium Design */
.gold-info-section {
  margin-bottom: 50px;
  position: relative;
}

.gold-info-section .section-title {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  font-size: 1.7rem;
  margin-bottom: 30px;
}

.gold-info-section .section-title::after {
  display: none;
}

/* Enhanced Live Indicator */
.live-indicator {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(
    135deg,
    rgba(0, 210, 106, 0.15) 0%,
    rgba(0, 210, 106, 0.08) 100%
  );
  padding: 8px 16px;
  border-radius: 30px;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--positive);
  text-transform: uppercase;
  letter-spacing: 2px;
  border: 1px solid rgba(0, 210, 106, 0.25);
  box-shadow:
    0 0 30px rgba(0, 210, 106, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.live-indicator::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.15),
    transparent
  );
  animation: liveShine 3s ease-in-out infinite;
}

@keyframes liveShine {
  0%,
  100% {
    left: -100%;
  }
  50% {
    left: 100%;
  }
}

.live-dot {
  width: 8px;
  height: 8px;
  background: var(--positive);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--positive);
  animation: livePulse 1.5s ease-in-out infinite;
}

@keyframes livePulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.6;
    transform: scale(0.85);
  }
}

/* Gold Info Grid - Enhanced */
.gold-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 22px;
}

.gold-info-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

/* Gold Info Card - Premium Glass Style */
.gold-info-card {
  background: linear-gradient(
    145deg,
    rgba(22, 28, 38, 0.9) 0%,
    rgba(30, 37, 48, 0.85) 100%
  );
  border-radius: 20px;
  padding: 22px 14px;
  text-align: center;
  border: 1px solid var(--border-color);
  transition: var(--transition-bounce);
  direction: rtl;
  position: relative;
  overflow: hidden;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

/* Subtle inner glow */
.gold-info-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(
    ellipse at 50% -20%,
    rgba(255, 215, 0, 0.08) 0%,
    transparent 60%
  );
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gold-info-card:hover::before {
  opacity: 1;
}

/* Bottom accent line */
.gold-info-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 10%;
  right: 10%;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold-primary),
    transparent
  );
  opacity: 0;
  transition: all 0.4s ease;
  border-radius: 3px;
}

.gold-info-card:hover {
  transform: translateY(-6px) scale(1.02);
  border-color: rgba(255, 215, 0, 0.3);
  box-shadow:
    var(--shadow-glow-gold),
    0 15px 40px rgba(0, 0, 0, 0.3);
}

.gold-info-card:hover::after {
  opacity: 1;
  left: 5%;
  right: 5%;
}

/* Highlighted sell card with green accent */
.gold-info-card.highlight-sell {
  border: 2px solid rgba(0, 210, 106, 0.4);
  background: linear-gradient(
    145deg,
    rgba(22, 28, 38, 0.9) 0%,
    rgba(0, 210, 106, 0.12) 100%
  );
  box-shadow: 0 0 40px rgba(0, 210, 106, 0.1);
}

.gold-info-card.highlight-sell::after {
  background: linear-gradient(90deg, transparent, var(--positive), transparent);
}

.gold-info-card.highlight-sell:hover {
  box-shadow:
    0 0 60px rgba(0, 210, 106, 0.25),
    0 15px 40px rgba(0, 0, 0, 0.3);
}

/* Wide info cards with gold accent */
.gold-info-card.wide {
  background: linear-gradient(
    145deg,
    rgba(22, 28, 38, 0.9) 0%,
    rgba(255, 215, 0, 0.1) 100%
  );
  border: 1px solid rgba(255, 215, 0, 0.25);
}

/* Gold Info Value - Enhanced Typography */
.gold-info-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gold-primary);
  margin-bottom: 6px;
  text-shadow: 0 0 25px rgba(255, 215, 0, 0.4);
  direction: ltr;
  width: 100%;
  overflow: visible;
  white-space: nowrap;
  letter-spacing: -0.02em;
}

.gold-info-card.highlight-sell .gold-info-value:first-child {
  color: var(--positive);
  font-size: 1.4rem;
}

.gold-info-label {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  font-weight: 600;
  text-align: center;
}

.gold-info-unit {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 5px;
}

/* Price row for buy/sell display */
.price-row {
  display: flex;
  gap: 8px;
  width: 100%;
  justify-content: space-between;
  direction: rtl;
}

.price-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 6px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: var(--transition-smooth);
  min-width: 0;
  overflow: visible;
}

.price-item:hover {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 215, 0, 0.3);
}

.price-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 500;
}

.price-item .gold-info-value {
  margin: 0;
  font-size: 1.25rem;
  width: 100%;
  text-align: center;
  direction: ltr;
  overflow: visible;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .gold-info-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .gold-info-row {
    grid-template-columns: 1fr;
  }

  .gold-info-value {
    font-size: 1.4rem;
  }
}

.charts-grid {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.chart-container {
  background: rgba(30, 37, 48, 0.95);
  border-radius: 20px;
  padding: 25px;
  border: 1px solid var(--border-color);
  width: 100%;
  transition: box-shadow 0.2s ease;
}

.chart-container:hover {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-soft);
}

/* Chart placeholder for lazy loading */
.chart-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 12px;
}

.chart-loading-text {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.chart-container.gold-chart {
  border-top: 4px solid var(--gold-primary);
}

.chart-container.gold-chart:hover {
  box-shadow: var(--shadow-glow-gold);
}

.chart-container.btc-chart {
  border-top: 4px solid var(--btc-primary);
}

.chart-container.btc-chart:hover {
  box-shadow: var(--shadow-glow-btc);
}

.chart-container.stocks-chart {
  border-top: 4px solid #4caf50;
}

.chart-container.stocks-chart:hover {
  box-shadow: 0 0 40px rgba(76, 175, 80, 0.15);
}

.chart-title {
  display: flex;
  align-items: center;
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 18px;
  color: var(--text-primary);
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Chart Price Header */
.chart-price-header {
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px;
  background: var(--bg-secondary);
  border-radius: 12px;
  margin-bottom: 15px;
}

.chart-price-icon {
  font-size: 2rem;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.gold-chart .chart-price-icon {
  background: linear-gradient(
    135deg,
    rgba(255, 215, 0, 0.2),
    rgba(184, 134, 11, 0.2)
  );
}

.btc-chart .chart-price-icon {
  background: linear-gradient(
    135deg,
    rgba(247, 147, 26, 0.2),
    rgba(232, 133, 10, 0.2)
  );
}

.chart-price-info {
  flex: 1;
}

.chart-price-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.chart-price-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.chart-price-value {
  text-align: right;
}

.chart-main-price {
  display: block;
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--text-primary);
}

.gold-chart .chart-main-price {
  color: var(--gold-primary);
}

.btc-chart .chart-main-price {
  color: var(--btc-primary);
}

.chart-price-change {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
}

.chart-price-change.positive {
  color: var(--positive);
}

.chart-price-change.negative {
  color: var(--negative);
}

.chart-container h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-primary);
}

.tradingview-widget-container {
  height: 500px;
  min-height: 500px;
  width: 100%;
  border-radius: 8px;
  overflow: hidden;
}

.tradingview-widget-container__widget {
  width: 100%;
  height: 100%;
}

.tradingview-widget-container iframe {
  width: 100% !important;
  height: 100% !important;
}

/* Footer - Premium Design */
.footer {
  text-align: center;
  padding: 50px 0 40px;
  margin-top: 30px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 0, 0, 0.2) 50%,
    rgba(0, 0, 0, 0.4) 100%
  );
  position: relative;
  border-top: 1px solid var(--border-color);
}

.footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 2px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--gold-primary),
    var(--btc-primary),
    transparent
  );
  opacity: 0.7;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  background: linear-gradient(
    135deg,
    var(--gold-primary) 0%,
    var(--gold-secondary) 50%,
    var(--btc-primary) 100%
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand svg,
.footer-icon {
  opacity: 0.8;
}

.footer-links {
  display: flex;
  gap: 16px;
}

.footer-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.04) 0%,
    rgba(255, 255, 255, 0.02) 100%
  );
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition-bounce);
  text-decoration: none;
}

.footer-link:hover {
  background: linear-gradient(
    145deg,
    rgba(255, 215, 0, 0.15) 0%,
    rgba(247, 147, 26, 0.1) 100%
  );
  border-color: rgba(255, 215, 0, 0.4);
  color: var(--gold-primary);
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 8px 25px rgba(255, 215, 0, 0.2),
    0 0 0 1px rgba(255, 215, 0, 0.1);
}

.footer-link:hover svg {
  filter: drop-shadow(0 0 8px rgba(255, 215, 0, 0.5));
}

.footer-link i,
.footer-link svg {
  width: 20px;
  height: 20px;
  transition: filter 0.3s ease;
}

.footer-logo {
  font-size: 1.5rem;
}

.footer-data {
  color: var(--text-secondary);
  margin: 0;
}

.footer-copy {
  color: var(--text-muted);
  opacity: 0.7;
  margin: 0;
}

.footer p {
  margin-bottom: 10px;
}

/* Loading State */
.loading {
  opacity: 0.5;
  animation: pulseLoad 1.5s ease-in-out infinite;
}

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

/* Skeleton loading animation */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 25%,
    var(--bg-card) 50%,
    var(--bg-secondary) 75%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

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

/* Error State */
.error {
  color: var(--negative);
  animation: shake 0.5s ease;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}

/* Fade in animation for cards */
.card,
.karat-card,
.gold-info-card,
.chart-container {
  animation: fadeInUp 0.6s ease backwards;
}

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

/* Stagger animation delays */
.gold-info-grid .gold-info-card:nth-child(1) {
  animation-delay: 0.05s;
}
.gold-info-grid .gold-info-card:nth-child(2) {
  animation-delay: 0.1s;
}
.gold-info-grid .gold-info-card:nth-child(3) {
  animation-delay: 0.15s;
}
.gold-info-grid .gold-info-card:nth-child(4) {
  animation-delay: 0.2s;
}

.gold-info-row .gold-info-card:nth-child(1) {
  animation-delay: 0.25s;
}
.gold-info-row .gold-info-card:nth-child(2) {
  animation-delay: 0.3s;
}
.gold-info-row .gold-info-card:nth-child(3) {
  animation-delay: 0.35s;
}

/* Responsive */

/* Loading Toast */
.loading-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  background: rgba(30, 37, 48, 0.98);
  border: 1px solid var(--gold-primary);
  border-radius: 16px;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 10000;
  box-shadow: 0 8px 32px rgba(255, 215, 0, 0.2);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 1rem;
  direction: rtl;
}

.loading-toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.loading-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 215, 0, 0.2);
  border-top-color: var(--gold-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* Refresh button loading state */
.refresh-btn.loading {
  pointer-events: none;
  opacity: 0.8;
}

.refresh-btn.loading .refresh-icon {
  animation: spin 1s linear infinite;
}

@media (max-width: 768px) {
  .container {
    padding: 15px;
  }

  .header {
    flex-direction: column;
    align-items: flex-start;
    text-align: center;
  }

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

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

  .last-update {
    align-items: center;
    width: 100%;
  }

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

  .logo h1 {
    font-size: 1.4rem;
  }

  .logo-icon-wrapper {
    width: 55px;
    height: 55px;
  }

  .logo-icon.gold-icon {
    width: 20px;
    height: 20px;
    left: 8px;
    top: 10px;
  }

  .logo-icon.btc-icon {
    width: 16px;
    height: 16px;
    right: 8px;
    bottom: 10px;
  }

  .last-update {
    flex-direction: row;
    width: 100%;
    justify-content: center;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }

  .price-cards {
    grid-template-columns: 1fr;
  }

  .charts-grid {
    grid-template-columns: 1fr;
  }

  .chart-container h3 {
    font-size: 1rem;
  }

  .chart-title {
    font-size: 1rem;
    padding: 10px 12px;
  }

  .chart-icon {
    width: 18px;
    height: 18px;
  }

  .tradingview-widget-container {
    height: 350px;
    min-height: 350px;
  }

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

  .egypt-gold-prices {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .egypt-price-value {
    font-size: 1.3rem;
  }

  .section-icon {
    width: 24px;
    height: 24px;
  }

  .calc-result {
    flex-direction: column;
    gap: 15px;
    text-align: center;
    padding: 20px;
  }

  .calc-result::before {
    display: none;
  }

  /* Calculator responsive */
  .calculator {
    padding: 25px 18px;
    border-radius: 20px;
  }

  .calc-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .calc-input-group label {
    font-size: 0.85rem;
  }

  .calc-input-group input,
  .calc-input-group select {
    padding: 12px 14px;
    font-size: 1rem;
  }

  .number-stepper {
    grid-template-columns: 45px 1fr 45px;
  }

  .stepper-btn {
    height: 48px;
    width: 45px;
    font-size: 1.3rem;
  }

  .calc-result-value {
    font-size: 1.7rem;
  }

  .calc-result-label {
    font-size: 1rem;
  }

  .section-title::after {
    left: 50%;
    transform: translateX(-50%);
  }

  .footer-brand {
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  .karats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .karat-card {
    padding: 15px;
  }

  .karat-header {
    font-size: 1.2rem;
  }

  /* Calculator small screens */
  .calculator {
    padding: 20px 15px;
    border-radius: 16px;
  }

  .calc-row {
    gap: 15px;
    margin-bottom: 20px;
  }

  .calc-input-group {
    gap: 8px;
  }

  .calc-input-group label {
    font-size: 0.8rem;
  }

  .calc-input-group input,
  .calc-input-group select {
    padding: 12px;
    font-size: 0.95rem;
    border-radius: 10px;
  }

  .number-stepper {
    grid-template-columns: 42px 1fr 42px;
    gap: 6px;
  }

  .stepper-btn {
    height: 44px;
    width: 42px;
    font-size: 1.2rem;
    border-radius: 8px;
  }

  .calc-result {
    padding: 18px 15px;
    border-radius: 14px;
    gap: 12px;
  }

  .calc-result-value {
    font-size: 1.5rem;
  }

  .calc-result-label {
    font-size: 0.95rem;
  }

  .calculator-section .section-title {
    font-size: 1.1rem;
  }

  .calc-subtitle {
    font-size: 0.8rem;
  }

  .karat-price {
    font-size: 1rem;
  }

  /* Gold info cards small screens */
  .gold-info-grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .gold-info-card {
    padding: 15px 8px;
  }

  .price-row {
    flex-direction: column;
    gap: 8px;
  }

  .price-item {
    width: 100%;
    padding: 10px 8px;
  }

  .price-item .gold-info-value {
    font-size: 1.15rem;
  }

  .gold-info-label {
    font-size: 0.85rem;
    margin-bottom: 10px;
  }

  .header {
    padding: 15px 12px;
    border-radius: 16px;
  }

  .logo h1 {
    font-size: 1.2rem;
  }

  .loading-toast {
    padding: 12px 20px;
    font-size: 0.9rem;
    width: calc(100% - 30px);
    max-width: 320px;
  }

  .gold-info-row {
    gap: 10px;
  }

  .gold-info-card.wide {
    padding: 15px 12px;
  }
}

/* Very small screens */
@media (max-width: 360px) {
  .gold-info-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .gold-info-card {
    padding: 18px 15px;
  }

  .price-row {
    flex-direction: row;
    gap: 10px;
  }

  .price-item .gold-info-value {
    font-size: 1.2rem;
  }

  .logo-icon-wrapper {
    width: 45px;
    height: 45px;
  }

  .logo h1 {
    font-size: 1.1rem;
  }

  .header {
    padding: 12px 10px;
  }

  .refresh-btn {
    padding: 10px 16px;
    font-size: 0.9rem;
  }

  /* Calculator very small screens */
  .calculator {
    padding: 16px 12px;
    border-radius: 14px;
  }

  .calc-row {
    gap: 12px;
    margin-bottom: 16px;
  }

  .number-stepper {
    grid-template-columns: 38px 1fr 38px;
    gap: 5px;
  }

  .stepper-btn {
    height: 40px;
    width: 38px;
    font-size: 1.1rem;
  }

  .calc-input-group input,
  .calc-input-group select {
    padding: 10px;
    font-size: 0.9rem;
  }

  .calc-result {
    padding: 15px 12px;
    border-radius: 12px;
  }

  .calc-result-value {
    font-size: 1.35rem;
  }

  .calc-result-label {
    font-size: 0.9rem;
  }
}

/* ============================================
   ERROR TOAST & ERROR STATE STYLES - ENHANCED
   Premium glassmorphism with smooth animations
   ============================================ */

/* Error Toast Container */
.error-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-120%) scale(0.95);
  z-index: 10000;
  opacity: 0;
  transition:
    transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.3s ease;
  pointer-events: none;
  max-width: calc(100% - 32px);
  width: 520px;
  filter: blur(4px);
}

.error-toast.show {
  transform: translateX(-50%) translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
  filter: blur(0);
}

/* Main toast container with premium glass effect */
.error-toast-content {
  position: relative;
  display: flex;
  align-items: center;
  gap: 16px;
  background: linear-gradient(
    135deg,
    rgba(30, 20, 25, 0.92) 0%,
    rgba(45, 25, 30, 0.88) 50%,
    rgba(35, 20, 25, 0.92) 100%
  );
  border: 1px solid rgba(255, 100, 100, 0.25);
  border-radius: 20px;
  padding: 18px 22px;
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
  box-shadow:
    0 20px 60px -15px rgba(255, 59, 48, 0.35),
    0 0 0 1px rgba(255, 100, 100, 0.15),
    0 1px 2px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    inset 0 -1px 0 rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

/* Animated gradient border glow */
.error-toast-content::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(
    90deg,
    rgba(255, 59, 48, 0) 0%,
    rgba(255, 100, 100, 0.6) 25%,
    rgba(255, 150, 100, 0.8) 50%,
    rgba(255, 100, 100, 0.6) 75%,
    rgba(255, 59, 48, 0) 100%
  );
  border-radius: 21px;
  z-index: -1;
  opacity: 0;
  animation: borderGlow 3s ease-in-out infinite;
}

@keyframes borderGlow {
  0%,
  100% {
    opacity: 0;
    transform: translateX(-100%);
  }
  50% {
    opacity: 0.7;
    transform: translateX(100%);
  }
}

/* Subtle shimmer effect on the toast */
.error-toast-content::after {
  content: "";
  position: absolute;
  top: 0;
  left: -150%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.05),
    transparent
  );
  transform: skewX(-20deg);
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%,
  100% {
    left: -150%;
  }
  50% {
    left: 150%;
  }
}

/* Error Icon with breathing glow effect */
.error-toast-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(255, 80, 80, 0.25) 0%,
    rgba(255, 59, 48, 0.15) 100%
  );
  border-radius: 14px;
  border: 1px solid rgba(255, 100, 100, 0.2);
  color: #ff6b6b;
  position: relative;
  animation: iconBreath 2.5s ease-in-out infinite;
}

@keyframes iconBreath {
  0%,
  100% {
    transform: scale(1);
    box-shadow:
      0 0 0 0 rgba(255, 100, 100, 0.4),
      0 0 20px -5px rgba(255, 59, 48, 0.3);
  }
  50% {
    transform: scale(1.05);
    box-shadow:
      0 0 0 8px rgba(255, 100, 100, 0),
      0 0 30px -5px rgba(255, 59, 48, 0.5);
  }
}

.error-toast-icon svg {
  width: 26px;
  height: 26px;
  stroke-width: 2.5;
  filter: drop-shadow(0 0 8px rgba(255, 100, 100, 0.5));
}

/* Message area with better typography */
.error-toast-message {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.error-toast-title {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ff8080 0%, #ff6b6b 50%, #ff5252 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: 0 0 30px rgba(255, 100, 100, 0.3);
}

.error-toast-description {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.45;
  font-weight: 400;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  white-space: normal;
}

/* Action buttons container */
.error-toast-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* Retry button with premium styling */
.error-retry-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, #ff7070 0%, #ff5252 50%, #e84545 100%);
  color: #fff;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  box-shadow:
    0 4px 15px -3px rgba(255, 82, 82, 0.5),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.error-retry-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.25),
    transparent
  );
  transition: left 0.5s ease;
}

.error-retry-btn:hover::before {
  left: 100%;
}

.error-retry-btn:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow:
    0 8px 25px -5px rgba(255, 82, 82, 0.6),
    0 0 0 1px rgba(255, 255, 255, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  background: linear-gradient(135deg, #ff8585 0%, #ff6060 50%, #f05050 100%);
}

.error-retry-btn:active {
  transform: translateY(-1px) scale(0.98);
  box-shadow:
    0 2px 10px -3px rgba(255, 82, 82, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.error-retry-btn svg {
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  width: 16px;
  height: 16px;
}

.error-retry-btn:hover svg {
  transform: rotate(180deg);
}

/* Dismiss button with refined styling */
.error-dismiss-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.error-dismiss-btn:hover {
  background: rgba(255, 100, 100, 0.15);
  border-color: rgba(255, 100, 100, 0.3);
  color: #ff8080;
  transform: scale(1.08);
}

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

.error-dismiss-btn svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.error-dismiss-btn:hover svg {
  transform: rotate(90deg);
}

/* Progress bar with gradient animation */
.error-toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 4px;
  background: linear-gradient(90deg, #ff8080 0%, #ff5252 50%, #ff3b30 100%);
  border-radius: 0 0 20px 20px;
  width: 100%;
  transform-origin: left;
  box-shadow: 0 0 10px rgba(255, 82, 82, 0.5);
}

.error-toast-progress.animate {
  animation: progressShrink 8s linear forwards;
}

@keyframes progressShrink {
  0% {
    transform: scaleX(1);
    background: linear-gradient(90deg, #ff8080, #ff5252, #ff3b30);
  }
  50% {
    background: linear-gradient(90deg, #ff9090, #ff6262, #ff4b40);
  }
  100% {
    transform: scaleX(0);
    background: linear-gradient(90deg, #ffa0a0, #ff7272, #ff5b50);
  }
}

/* Error States for Cards and Sections */
.error-state {
  position: relative;
}

.error-state::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid rgba(255, 59, 48, 0.3);
  border-radius: inherit;
  pointer-events: none;
  animation: errorBorderPulse 2s ease-in-out infinite;
}

@keyframes errorBorderPulse {
  0%,
  100% {
    border-color: rgba(255, 59, 48, 0.3);
  }
  50% {
    border-color: rgba(255, 59, 48, 0.6);
  }
}

/* Error badge for individual sections */
.error-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255, 59, 48, 0.15);
  border: 1px solid rgba(255, 59, 48, 0.3);
  border-radius: 8px;
  font-size: 0.8rem;
  color: #ff6b6b;
  margin-left: 12px;
}

.error-badge svg {
  width: 14px;
  height: 14px;
}

/* Fallback/Warning States */
.warning-state {
  position: relative;
}

.warning-state::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border: 2px solid rgba(245, 158, 11, 0.3);
  border-radius: inherit;
  pointer-events: none;
}

.warning-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 8px;
  font-size: 0.8rem;
  color: #f59e0b;
  margin-left: 12px;
}

.warning-badge svg {
  width: 14px;
  height: 14px;
}

/* Offline indicator */
.offline-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 12px 20px;
  background: linear-gradient(
    135deg,
    rgba(255, 59, 48, 0.95),
    rgba(220, 38, 38, 0.95)
  );
  color: #fff;
  text-align: center;
  font-weight: 500;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.offline-banner.show {
  transform: translateY(0);
}

.offline-banner svg {
  width: 20px;
  height: 20px;
}

/* Price loading error state */
.price-error {
  color: #ff6b6b !important;
  font-style: italic;
}

.price-error::before {
  content: "⚠ ";
}

/* Refresh button error state */
.refresh-btn.error {
  background: linear-gradient(135deg, #ff6b6b, #ff3b30);
  animation: shake 0.5s ease-in-out;
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  10%,
  30%,
  50%,
  70%,
  90% {
    transform: translateX(-4px);
  }
  20%,
  40%,
  60%,
  80% {
    transform: translateX(4px);
  }
}

/* Success toast - Enhanced premium style */
.success-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-120%) scale(0.95);
  z-index: 10000;
  opacity: 0;
  transition:
    transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1),
    opacity 0.3s ease;
  pointer-events: none;
  filter: blur(4px);
}

.success-toast.show {
  transform: translateX(-50%) translateY(0) scale(1);
  opacity: 1;
  pointer-events: auto;
  filter: blur(0);
}

.success-toast-content {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(
    135deg,
    rgba(20, 30, 25, 0.92) 0%,
    rgba(25, 45, 30, 0.88) 50%,
    rgba(20, 35, 25, 0.92) 100%
  );
  border: 1px solid rgba(0, 200, 83, 0.3);
  border-radius: 18px;
  padding: 16px 22px;
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  backdrop-filter: blur(24px) saturate(180%);
  box-shadow:
    0 20px 60px -15px rgba(0, 200, 83, 0.3),
    0 0 0 1px rgba(0, 200, 83, 0.15),
    0 1px 2px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
}

.success-toast-content::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 200, 83, 0.1),
    transparent
  );
  animation: successShimmer 2s ease-out forwards;
}

@keyframes successShimmer {
  to {
    left: 100%;
  }
}

.success-toast-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    rgba(0, 200, 83, 0.25) 0%,
    rgba(0, 150, 60, 0.15) 100%
  );
  border-radius: 12px;
  border: 1px solid rgba(0, 200, 83, 0.2);
  color: #00c853;
  animation: successPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

.success-toast-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 2.5;
  filter: drop-shadow(0 0 8px rgba(0, 200, 83, 0.5));
}

.success-toast-message {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.success-toast-title {
  font-weight: 600;
  font-size: 0.95rem;
  background: linear-gradient(135deg, #4ade80 0%, #00c853 50%, #22c55e 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.success-toast-subtitle {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.6);
}

/* Mobile responsive for error toast - Enhanced */
@media (max-width: 560px) {
  .error-toast {
    width: calc(100% - 24px);
    max-width: none;
    left: 12px;
    right: 12px;
    top: 16px;
    transform: translateX(0) translateY(-120%) scale(0.95);
  }

  .error-toast.show {
    transform: translateX(0) translateY(0) scale(1);
  }

  .error-toast-content {
    flex-wrap: wrap;
    padding: 16px;
    gap: 14px;
    border-radius: 16px;
  }

  .error-toast-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }

  .error-toast-icon svg {
    width: 22px;
    height: 22px;
  }

  .error-toast-message {
    flex: 1 1 calc(100% - 66px);
  }

  .error-toast-title {
    font-size: 0.95rem;
  }

  .error-toast-description {
    font-size: 0.82rem;
    -webkit-line-clamp: 2;
    line-clamp: 2;
  }

  .error-toast-actions {
    width: 100%;
    justify-content: stretch;
    gap: 8px;
    margin-top: 2px;
  }

  .error-retry-btn {
    flex: 1;
    justify-content: center;
    padding: 12px 16px;
    font-size: 0.9rem;
    border-radius: 10px;
  }

  .error-dismiss-btn {
    width: 44px;
    height: 44px;
    border-radius: 10px;
  }

  .success-toast {
    width: calc(100% - 24px);
    max-width: none;
    left: 12px;
    right: 12px;
    transform: translateX(0) translateY(-120%) scale(0.95);
  }

  .success-toast.show {
    transform: translateX(0) translateY(0) scale(1);
  }
}

/* Very small screens */
@media (max-width: 380px) {
  .error-toast-content {
    padding: 14px 12px;
    gap: 12px;
  }

  .error-toast-icon {
    width: 38px;
    height: 38px;
  }

  .error-toast-icon svg {
    width: 20px;
    height: 20px;
  }

  .error-retry-btn {
    padding: 10px 14px;
    font-size: 0.85rem;
  }

  .error-dismiss-btn {
    width: 40px;
    height: 40px;
  }
}