:root {
  /* Modern Color Palette */
  --primary-color: #2563eb; /* Modern blue */
  --secondary-color: #1e293b; /* Refined dark gray */
  --accent-color: #3b82f6; /* Bright blue accent */
  --success-color: #10b981; /* Modern green */
  --danger-color: #ef4444; /* Modern red */
  --warning-color: #f59e0b; /* Modern orange */
  --dark-color: #0f172a; /* Deep dark */
  --light-color: #f8fafc; /* Clean light */
  --text-color: #f1f5f9; /* Softer white */
  --text-light: #94a3b8; /* Balanced muted text */
  --text-dark: #1e293b; /* Dark text for light backgrounds */

  /* Refined Background Gradients */
  --gradient-start: #0f172a;
  --gradient-end: #1e293b;
  --card-bg: #1e293b;
  --border-color: #334155; /* Softer borders */

  /* Modern Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Refined Border Radius */
  --border-radius-sm: 0.375rem;
  --border-radius-md: 0.5rem;
  --border-radius-lg: 0.75rem;
  --border-radius-xl: 1rem;
  --border-radius-2xl: 1.5rem;
  --border-radius-full: 9999px;

  /* Smooth Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography Scale */
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Spacing Scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
}

/* Enhanced Base Styles */
body {
  margin: 0;
  padding: 0;
  font-family: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
  color: var(--text-color);
  scroll-behavior: smooth;
  min-height: 100vh;
  line-height: 1.6;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}

/* Enhanced Header */
.header {
  text-align: center;
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-8);
  color: var(--text-color);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  position: relative;
  padding-bottom: var(--space-4);
  font-weight: 800;
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  border-radius: var(--border-radius-full);
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

/* Enhanced Menu Dropdown */
.menu-container {
  position: fixed;
  top: var(--space-5);
  right: var(--space-5);
  z-index: 1000;
  perspective: 1000px;
}

.menu-btn {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.menu-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(16, 185, 129, 0.1));
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.menu-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.menu-btn:hover::before {
  opacity: 1;
}

.menu-btn i {
  font-size: var(--font-size-lg);
  color: var(--text-color);
  transition: transform var(--transition-normal);
  z-index: 1;
}

.menu-btn.active i {
  transform: rotate(90deg);
}

.dropdown-menu {
  position: absolute;
  right: 0;
  top: 4rem;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-3) 0;
  min-width: 280px;
  opacity: 0;
  transform: translateY(-10px) rotateX(15deg);
  transform-origin: top;
  transition: all var(--transition-normal);
  visibility: hidden;
  backdrop-filter: blur(20px);
  overflow: hidden;
}

.dropdown-menu::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(16, 185, 129, 0.05));
  pointer-events: none;
}

.dropdown-menu.show {
  opacity: 1;
  transform: translateY(0) rotateX(0);
  visibility: visible;
}

.dropdown-menu a {
  display: block;
  padding: var(--space-4) var(--space-5);
  color: var(--text-color);
  text-decoration: none;
  transition: all var(--transition-normal);
  transform: translateX(5px);
  opacity: 0;
  font-weight: 500;
  font-size: var(--font-size-sm);
  border-left: 3px solid transparent;
  position: relative;
}

.dropdown-menu.show a {
  transform: translateX(0);
  opacity: 1;
  transition-delay: calc(var(--i) * 0.05s);
}

.dropdown-menu a:hover {
  transform: translateX(8px);
  background: linear-gradient(90deg, rgba(59, 130, 246, 0.1), transparent);
  color: var(--accent-color);
  border-left-color: var(--accent-color);
}

/* Enhanced Section Title */
.section-title {
  font-size: var(--font-size-2xl);
  margin: var(--space-10) 0 var(--space-6);
  color: var(--text-color);
  text-align: center;
  position: relative;
  padding-bottom: var(--space-3);
  font-weight: 700;
  letter-spacing: -0.025em;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
  border-radius: var(--border-radius-full);
}

/* Enhanced Order Book Table */
.order-book-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-bottom: var(--space-6);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
}

.order-book-table:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.order-book-table th {
  background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
  color: var(--text-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: var(--font-size-xs);
  letter-spacing: 0.05em;
  padding: var(--space-4) var(--space-3);
  border-bottom: 1px solid var(--border-color);
  position: relative;
}

.order-book-table th::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
}

.order-book-table td {
  padding: var(--space-4) var(--space-3);
  border-bottom: 1px solid rgba(51, 65, 85, 0.3);
  transition: all var(--transition-fast);
  color: var(--text-color);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: var(--font-size-sm);
}

.order-book-table tbody tr:hover td {
  background: rgba(59, 130, 246, 0.1);
  transform: scale(1.01);
}

.order-book-table tbody tr:last-child td {
  border-bottom: none;
}

.ask {
  color: var(--danger-color)!important;
  font-weight: 700;
  text-align: center;
  text-shadow: 0 1px 2px rgba(239, 68, 68, 0.3);
}

.bid {
  color: var(--success-color)!important;
  font-weight: 700;
  text-align: center;
  text-shadow: 0 1px 2px rgba(16, 185, 129, 0.3);
}

/* Enhanced Table Container */
.table-container {
  margin-bottom: var(--space-10);
  padding: var(--space-6);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-2xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-normal);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.table-container::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
}

.table-container:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent-color);
}

.table-header {
  margin-bottom: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border-color);
}

.table-header h3 {
  margin: 0;
  font-size: var(--font-size-xl);
  color: var(--text-color);
  font-weight: 700;
  position: relative;
  padding-left: var(--space-4);
}

.table-header h3::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 70%;
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  border-radius: var(--border-radius-full);
}

.stk-eur-btn {
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  color: white !important;
  font-weight: 700;
  border: 2px solid var(--accent-color);
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.stk-eur-btn:hover {
  background: linear-gradient(135deg, var(--success-color), var(--accent-color));
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
}

/* Enhanced Badges */
.stk-eur-badge {
  background: linear-gradient(135deg, var(--accent-color), var(--success-color));
  color: white;
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  margin-left: var(--space-2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.special-badge {
  background: linear-gradient(135deg, var(--warning-color), #ea580c);
  color: white;
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--border-radius-full);
  margin-left: var(--space-2);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

/* Enhanced Price Info */
.price-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-5);
  padding: var(--space-4);
  background: var(--secondary-color);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.price-info::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
}

.price-value {
  font-weight: 800;
  font-size: var(--font-size-xl);
  color: var(--text-color);
  font-family: "JetBrains Mono", "Fira Code", monospace;
}

.positive-change {
  color: var(--success-color);
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(16, 185, 129, 0.3);
}

.negative-change {
  color: var(--danger-color);
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(239, 68, 68, 0.3);
}

/* Enhanced Loading States */
.loading-text {
  color: var(--accent-color);
  font-style: italic;
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 500;
}

.loading-text::after {
  content: "";
  display: inline-block;
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid rgba(59, 130, 246, 0.3);
  border-top-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.last-updated {
  font-size: var(--font-size-xs);
  color: var(--text-light);
  text-align: right;
  margin-top: var(--space-2);
  font-style: italic;
}

/* Enhanced Error States */
.error-message {
  color: var(--danger-color);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.1), rgba(239, 68, 68, 0.05));
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius-lg);
  margin-top: var(--space-3);
  font-size: var(--font-size-sm);
  border-left: 4px solid var(--danger-color);
  font-weight: 500;
}

.order-book-not-available {
  color: var(--text-light);
  font-style: italic;
  text-align: center;
  padding: var(--space-5);
  background: rgba(148, 163, 184, 0.1);
  border-radius: var(--border-radius-xl);
  margin-top: var(--space-5);
  border: 2px dashed var(--border-color);
  font-weight: 500;
}

/* Enhanced Modal Styles */
#modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  justify-content: center;
  align-items: center;
  z-index: 1000;
  animation: fadeIn 0.3s ease;
}

#modal-box {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: var(--space-8);
  border-radius: var(--border-radius-xl);
  text-align: center;
  width: 90%;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
  animation: scaleIn 0.3s ease;
  position: relative;
  overflow: hidden;
}

#modal-box::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-color), var(--success-color));
}

#modal-box h3 {
  margin-bottom: var(--space-4);
  color: var(--text-color);
  font-weight: 700;
}

/* Enhanced Form Elements */
input[type="password"] {
  display: block;
  margin: 0 auto var(--space-5) auto;
  width: 80%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  border: 1px solid var(--border-color);
  background: var(--secondary-color);
  color: var(--text-color);
  border-radius: var(--border-radius-lg);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.3);
  transition: all var(--transition-normal);
  font-family: inherit;
}

input[type="password"]:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  outline: none;
}


/* Enhanced Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.table-container {
  animation: fadeIn 0.6s ease forwards;
}

.order-book-table tbody tr {
  transition: all var(--transition-fast);
}

.order-book-table tbody tr:hover {
  background: rgba(59, 130, 246, 0.1);
}

/* Enhanced Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: var(--space-5) var(--space-4);
  }

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

  .price-info {
    flex-direction: column;
    gap: var(--space-3);
    align-items: flex-start;
  }

  .sigla-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
  }

  .table-container {
    padding: var(--space-5);
  }

  .menu-container {
    top: var(--space-4);
    right: var(--space-4);
  }

  .dropdown-menu {
    min-width: 260px;
  }
}

@media (max-width: 480px) {
  .sigle-buttons {
    gap: var(--space-2);
  }

  .sigla-btn {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }

  .order-book-table th,
  .order-book-table td {
    padding: var(--space-2);
    font-size: var(--font-size-xs);
  }
}

/* Enhanced Focus States for Accessibility */
button:focus,
.sigla-btn:focus,
.menu-btn:focus,
.dropdown-menu a:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* Enhanced Print Styles */
@media print {
  .menu-container,
  .dropdown-menu {
    display: none !important;
  }

  .table-container {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #333;
  }

  body {
    background: white;
    color: black;
  }
}