:root {
  /* Colors */
  --color-background: #000000;
  --color-surface: #111111;
  --color-text: #ffffff;
  --color-text-secondary: #cccccc;
  --color-primary: #FF6B35;
  --color-primary-hover: #e55a2b;
  --color-primary-active: #cc4a21;
  --color-border: #333333;
  --color-card-border: #222222;
  --color-btn-primary-text: #ffffff;
  --color-error: rgba(255, 84, 89, 1);
  --color-success: rgba(50, 184, 198, 1);
  --color-warning: rgba(230, 129, 97, 1);
  --color-info: rgba(167, 169, 169, 1);
  --color-focus-ring: rgba(50, 184, 198, 0.4);
  --color-select-caret: rgba(245, 245, 245, 0.8);

  /* Common style patterns */
  --focus-ring: 0 0 0 3px var(--color-focus-ring);
  --focus-outline: 2px solid var(--color-primary);
  --status-bg-opacity: 0.15;
  --status-border-opacity: 0.25;
  --select-caret-light: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23134252' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  --select-caret-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");

  /* RGB versions for opacity control */
  --color-success-rgb: 50, 184, 198;
  --color-error-rgb: 255, 84, 89;
  --color-warning-rgb: 230, 129, 97;
  --color-info-rgb: 167, 169, 169;

  /* Typography */
  --font-family-base: "FKGroteskNeue", "Geist", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-mono: "Berkeley Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-base: 14px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 30px;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 550;
  --font-weight-bold: 600;
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --letter-spacing-tight: -0.01em;

  /* Spacing */
  --space-0: 0;
  --space-1: 1px;
  --space-2: 2px;
  --space-4: 4px;
  --space-6: 6px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-32: 32px;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-base: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -1px rgba(0, 0, 0, 0.02);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.04), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
  --shadow-inset-sm: inset 0 1px 0 rgba(255, 255, 255, 0.15), inset 0 -1px 0 rgba(0, 0, 0, 0.03);

  /* Animation */
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --ease-standard: cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
}

/* Dark mode colors */
@media (prefers-color-scheme: dark) {
  :root {
    --color-background: #000000;
    --color-surface: #111111;
    --color-text: #ffffff;
    --color-text-secondary: #cccccc;
    --color-primary: #FF6B35;
    --color-primary-hover: #e55a2b;
    --color-primary-active: #cc4a21;
    --color-border: #333333;
    --color-card-border: #222222;
    --color-btn-primary-text: #ffffff;
    --color-error: rgba(255, 84, 89, 1);
    --color-success: rgba(50, 184, 198, 1);
    --color-warning: rgba(230, 129, 97, 1);
    --color-info: rgba(167, 169, 169, 1);
    --color-focus-ring: rgba(50, 184, 198, 0.4);
  }
}

/* Data attribute for manual theme switching */
[data-color-scheme="dark"] {
  --color-background: #000000;
  --color-surface: #111111;
  --color-text: #ffffff;
  --color-text-secondary: #cccccc;
  --color-primary: #FF6B35;
  --color-primary-hover: #e55a2b;
  --color-primary-active: #cc4a21;
  --color-border: #333333;
  --color-card-border: #222222;
  --color-btn-primary-text: #ffffff;
  --color-error: rgba(255, 84, 89, 1);
  --color-success: rgba(50, 184, 198, 1);
  --color-warning: rgba(230, 129, 97, 1);
  --color-info: rgba(167, 169, 169, 1);
  --color-focus-ring: rgba(50, 184, 198, 0.4);
}

[data-color-scheme="light"] {
  --color-background: rgba(252, 252, 249, 1);
  --color-surface: rgba(255, 255, 253, 1);
  --color-text: rgba(19, 52, 59, 1);
  --color-text-secondary: rgba(98, 108, 113, 1);
  --color-primary: rgba(33, 128, 141, 1);
  --color-primary-hover: rgba(29, 116, 128, 1);
  --color-primary-active: rgba(26, 104, 115, 1);
  --color-border: rgba(94, 82, 64, 0.2);
  --color-card-border: rgba(94, 82, 64, 0.12);
}

/* Base styles */
html {
  font-size: var(--font-size-base);
  font-family: var(--font-family-base);
  line-height: var(--line-height-normal);
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: var(--font-weight-semibold);
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-md); }

p {
  margin: 0 0 var(--space-16) 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-standard);
}

a:hover {
  color: var(--color-primary-hover);
}

code,
pre {
  font-family: var(--font-family-mono);
  font-size: calc(var(--font-size-base) * 0.95);
  background-color: var(--color-surface);
  border-radius: var(--radius-sm);
}

code {
  padding: var(--space-1) var(--space-4);
}

pre {
  padding: var(--space-16);
  margin: var(--space-16) 0;
  overflow: auto;
  border: 1px solid var(--color-border);
}

pre code {
  background: none;
  padding: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-16);
  border-radius: var(--radius-base);
  font-size: var(--font-size-base);
  font-weight: 500;
  line-height: 1.5;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);
  border: none;
  text-decoration: none;
  position: relative;
}

.btn:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

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

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

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

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

.btn--secondary:hover {
  background: var(--color-surface);
  opacity: 0.9;
}

.btn--secondary:active {
  background: var(--color-surface);
  opacity: 0.8;
}

.btn--outline {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  background: var(--color-surface);
}

.btn--sm {
  padding: var(--space-4) var(--space-12);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn--lg {
  padding: var(--space-10) var(--space-20);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-md);
}

.btn--full-width {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Form elements */
.form-control {
  display: block;
  width: 100%;
  padding: var(--space-8) var(--space-12);
  font-size: var(--font-size-md);
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  transition: border-color var(--duration-fast) var(--ease-standard),
              box-shadow var(--duration-fast) var(--ease-standard);
}

textarea.form-control {
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
}

select.form-control {
  padding: var(--space-8) var(--space-12);
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: var(--select-caret-light);
  background-repeat: no-repeat;
  background-position: right var(--space-12) center;
  background-size: 16px;
  padding-right: var(--space-32);
}

@media (prefers-color-scheme: dark) {
  select.form-control {
    background-image: var(--select-caret-dark);
  }
}

[data-color-scheme="dark"] select.form-control {
  background-image: var(--select-caret-dark);
}

[data-color-scheme="light"] select.form-control {
  background-image: var(--select-caret-light);
}

.form-control:focus {
  border-color: var(--color-primary);
  outline: var(--focus-outline);
}

.form-label {
  display: block;
  margin-bottom: var(--space-8);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.form-group {
  margin-bottom: var(--space-16);
}

/* Card component */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-standard);
}

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

.card__body {
  padding: var(--space-16);
}

.card__header,
.card__footer {
  padding: var(--space-16);
  border-bottom: 1px solid var(--color-card-border);
}

/* Status indicators */
.status {
  display: inline-flex;
  align-items: center;
  padding: var(--space-6) var(--space-12);
  border-radius: var(--radius-full);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-sm);
}

.status--success {
  background-color: rgba(var(--color-success-rgb), var(--status-bg-opacity));
  color: var(--color-success);
  border: 1px solid rgba(var(--color-success-rgb), var(--status-border-opacity));
}

.status--error {
  background-color: rgba(var(--color-error-rgb), var(--status-bg-opacity));
  color: var(--color-error);
  border: 1px solid rgba(var(--color-error-rgb), var(--status-border-opacity));
}

.status--warning {
  background-color: rgba(var(--color-warning-rgb), var(--status-bg-opacity));
  color: var(--color-warning);
  border: 1px solid rgba(var(--color-warning-rgb), var(--status-border-opacity));
}

.status--info {
  background-color: rgba(var(--color-info-rgb), var(--status-bg-opacity));
  color: var(--color-info);
  border: 1px solid rgba(var(--color-info-rgb), var(--status-border-opacity));
}

/* Container layout */
.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--space-16);
  padding-left: var(--space-16);
}

@media (min-width: 640px) {
  .container {
    max-width: var(--container-sm);
  }
}
@media (min-width: 768px) {
  .container {
    max-width: var(--container-md);
  }
}
@media (min-width: 1024px) {
  .container {
    max-width: var(--container-lg);
  }
}
@media (min-width: 1280px) {
  .container {
    max-width: var(--container-xl);
  }
}

/* Utility classes */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: var(--space-4); }
.gap-8 { gap: var(--space-8); }
.gap-16 { gap: var(--space-16); }
.m-0 { margin: 0; }
.mt-8 { margin-top: var(--space-8); }
.mb-8 { margin-bottom: var(--space-8); }
.mx-8 { margin-left: var(--space-8); margin-right: var(--space-8); }
.my-8 { margin-top: var(--space-8); margin-bottom: var(--space-8); }
.p-0 { padding: 0; }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }
.py-16 { padding-top: var(--space-16); padding-bottom: var(--space-16); }
.px-16 { padding-left: var(--space-16); padding-right: var(--space-16); }
.block { display: block; }
.hidden { display: none; }

/* Accessibility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

/* Dark mode specifics */
[data-color-scheme="dark"] .btn--outline {
  border: 1px solid var(--color-border);
}

/* Header */
.header {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-border);
}

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

.MuiBox-root.mui-ivnhsv {
  font-family: var(--font-family-base);
  font-size: 20px;
  font-weight: 550;
  letter-spacing: -0.01em;
  line-height: 1.2;
  color: var(--color-text);
  text-transform: uppercase;
  margin-left: 16px;
  display: inline-flex;
  align-items: center;
}

.logo__image {
  height: 50px;
  width: auto;
  object-fit: contain;
}

/* Hero Section */
.hero {
  padding: 80px 0;
  min-height: 70vh;
  display: flex;
  align-items: center;
}

.hero__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__text {
  max-width: 500px;
}

.hero__headline1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  color: var(--color-text);
  letter-spacing: -1px;
}

.hero__headline2 {
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 40px;
  color: var(--color-text-secondary);
}

.btn--cta {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 18px 36px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn--cta:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 107, 53, 0.3);
}

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

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

.hero__image-main {
  width: 100%;
  height: auto;
  max-width: 600px;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* About Section */
.about {
  padding: 80px 0;
  background-color: var(--color-surface);
}

.section__title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 30px;
  text-align: center;
  color: var(--color-text);
}

.about__description {
  font-size: 20px;
  line-height: 1.7;
  text-align: center;
  max-width: 800px;
  margin: 0 auto var(--space-16);
  color: var(--color-text-secondary);
}

.about__image {
  display: block;
  max-width: 100%;
  height: auto;
  margin-left: auto;
  margin-right: auto;
  margin-top: var(--space-16);
  margin-bottom: var(--space-16);
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

/* Sports and Leagues Section */
.sports-leagues {
  padding: 80px 0;
}

.sports-leagues__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-top: 50px;
}

.sport-category {
  background-color: var(--color-surface);
  padding: 30px;
  border-radius: 12px;
  border: 1px solid var(--color-card-border);
  transition: transform 0.3s ease;
}

.sport-category:hover {
  transform: translateY(-5px);
}

.sport-category__title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.sport-category__list {
  list-style: none;
}

.sport-category__list li {
  padding: 8px 0;
  font-size: 16px;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.sport-category__list li:last-child {
  border-bottom: none;
}

.sport-category--coming-soon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.coming-soon {
  font-size: 18px;
  font-style: italic;
  color: var(--color-primary);
  font-weight: 500;
}

/* Bet Types Section */
.bet-types {
  padding: 80px 0;
  background-color: var(--color-surface);
}

.bet-types__content {
  margin-top: 50px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.bet-types__current {
  margin-bottom: 40px;
}

.bet-types__list {
  list-style: none;
}

.bet-types__list li {
  padding: 15px 0;
  font-size: 18px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  padding-left: 30px;
}

.bet-types__list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: bold;
}

.bet-types__list li:last-child {
  border-bottom: none;
}

.bet-types__coming-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--color-primary);
}

.bet-types__list--coming li {
  color: var(--color-text-secondary);
  opacity: 0.7;
}

.bet-types__list--coming li:before {
  content: "⏳";
}

/* Footer */
.footer {
  padding: 40px 0;
  background-color: #1a1a1a;
  color: var(--color-text);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-16);
}

.footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
}

.footer-links a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer-links a:hover {
  color: var(--color-text);
}

.footer-links span {
  color: var(--color-text-secondary);
  opacity: 0.5;
}

.footer-logos {
  margin: var(--space-8) 0;
}

.payment-logos {
  max-width: 300px;
  height: auto;
  opacity: 0.8;
}

.footer-text p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-8);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.footer-text a {
  color: var(--color-primary);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
  .hero__content {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
  }
  
  .hero__headline1 {
    font-size: 36px;
  }
  
  .hero__headline2 {
    font-size: 22px;
  }
  
  .hero__image-main {
    max-width: 100%;
  }
  
  .section__title {
    font-size: 28px;
  }
  
  .about__description {
    font-size: 18px;
  }
  
  .about__image {
    padding-left: var(--space-12);
    padding-right: var(--space-12);
  }
  
  .sports-leagues__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  
  .hero, .about, .sports-leagues, .bet-types {
    padding: 60px 0;
  }

  .logo__image {
    height: 40px;
  }

  .footer-links {
    flex-direction: column;
    gap: var(--space-4);
  }

  .payment-logos {
    max-width: 250px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }
  
  .hero__headline1 {
    font-size: 28px;
  }
  
  .hero__headline2 {
    font-size: 18px;
  }
  
  .btn--cta {
    padding: 15px 30px;
    font-size: 16px;
  }
  
  .sport-category {
    padding: 20px;
  }

  .logo__image {
    height: 35px;
  }

  .about__description {
    font-size: 16px;
  }

  .about__image {
    margin-top: var(--space-12);
    margin-bottom: var(--space-12);
  }

  .footer-text p {
    font-size: var(--font-size-xs);
  }
}

@font-face {
  font-family: 'FKGroteskNeue';
  src: url('https://r2cdn.perplexity.ai/fonts/FKGroteskNeue.woff2') format('woff2');
}