/* Base & Reset */
:root {
  --purple: #5C25D0;
  --purple-light: #6D45FF;
  --cyan: #00B5FF;
  --white: #FFF;
  --black: #0E0D16;
  --gray-100: #F8F9FA;
  --gray-200: #E9ECEF;
  --gray-300: #DEE2E6;
  --gray-400: #CED4DA;
  --gray-500: #ADB5BD;
  --gray-600: #6C757D;
  --gray-700: #495057;
  --gray-800: #343A40;
  --gray-900: #212529;
  
  --gradient-primary: linear-gradient(135deg, var(--purple) 0%, var(--purple-light) 100%);
  --gradient-accent: linear-gradient(135deg, var(--cyan) 0%, #3CDFFF 100%);
  
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.15);
  
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.5rem;
  --spacing-6: 2rem;
  --spacing-7: 2.5rem;
  --spacing-8: 3rem;
  
  --border-radius-sm: 0.25rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-xl: 1.5rem;
  
  --transition: all 0.3s ease;
}

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

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

body {
  font-family: 'Poppins', sans-serif;
  line-height: 1.5;
  color: var(--white);
  background-color: var(--black);
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  background: none;
  border: none;
  outline: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.5rem;
}

p {
  margin-bottom: 1rem;
  text-align: center;
}

/* Layout */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.section {
  padding: var(--spacing-8) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section__title {
  text-align: center;
  margin-bottom: var(--spacing-6);
  position: relative;
  padding-bottom: var(--spacing-3);
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 3px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-3) var(--spacing-5);
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background-color: var(--purple-light);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  border: 2px solid var(--cyan);
  color: var(--cyan);
  background-color: transparent;
}

.btn--outline:hover {
  background-color: var(--cyan);
  color: var(--black);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(14, 13, 22, 0.9);
  backdrop-filter: blur(10px);
  transition: var(--transition);
  padding: var(--spacing-4) 0;
}

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

.header__logo {
  z-index: 101;
}

.nav__list {
  display: flex;
  gap: var(--spacing-4);
  justify-content: center;
}

.nav__link {
  position: relative;
  font-weight: 500;
  padding: var(--spacing-2) 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: var(--transition);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.header__auth {
  display: flex;
  gap: var(--spacing-3);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url(/assets/hero.png) center/cover no-repeat, var(--black);
  padding-top: 80px;
}

.hero__content {
  max-width: 700px;
  margin: 0 auto;
  padding: var(--spacing-6);
  background: rgba(14, 13, 22, 0.85);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Cards and Grids */
.bonus__cards,
.crypto__benefits,
.steps,
.games__grid,
.security__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-5);
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

/* Card Styles */
.bonus-card,
.crypto-benefit,
.step,
.game-card,
.security__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-5);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--border-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.bonus-card:hover,
.crypto-benefit:hover,
.step:hover,
.game-card:hover,
.security__item:hover {
  transform: translateY(-5px);
  border-color: var(--cyan);
  background: rgba(255, 255, 255, 0.05);
}

/* FAQ Section */
.faq__items {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
}

.faq__item {
  margin-bottom: var(--spacing-4);
  border-radius: var(--border-radius);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
}

.faq__question {
  padding: var(--spacing-4);
  font-weight: 600;
  cursor: pointer;
  position: relative;
  text-align: left;
}

.faq__answer {
  padding: 0 var(--spacing-4) var(--spacing-4);
  color: var(--gray-300);
  text-align: left;
}

/* Support Section */
.support__content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.support__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: center;
}

/* Footer */
.footer {
  background-color: rgba(14, 13, 22, 0.9);
  padding: var(--spacing-7) 0 var(--spacing-4);
  margin-top: var(--spacing-7);
  text-align: center;
}

.footer__top {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-6);
}

.footer__nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  justify-content: center;
}

.footer__social {
  display: flex;
  gap: var(--spacing-3);
  justify-content: center;
}

.footer__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-4);
  padding-top: var(--spacing-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__responsible {
  display: flex;
  gap: var(--spacing-3);
  align-items: center;
  justify-content: center;
}

.footer__lang {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  margin-top: var(--spacing-4);
}

/* Mobile Menu */
.burger {
  display: none;
  flex-direction: column;
  gap: 6px;
  z-index: 101;
  padding: var(--spacing-2);
  margin: calc(var(--spacing-2) * -1);
}

.burger__line {
  width: 28px;
  height: 3px;
  background-color: var(--white);
  border-radius: 3px;
  transition: var(--transition);
}

@media screen and (max-width: 768px) {
  .header__nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 300px;
    background-color: var(--black);
    padding: 100px var(--spacing-5) var(--spacing-5);
    transform: translateX(100%);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    display: flex;
    flex-direction: column;
  }
  
  .nav__list {
    flex-direction: column;
    gap: var(--spacing-4);
    text-align: center;
  }
  
  .burger {
    display: flex;
  }
  
  .menu--open .header__nav {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }
  
  .menu--open .burger__line:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
  }
  
  .menu--open .burger__line:nth-child(2) {
    opacity: 0;
  }
  
  .menu--open .burger__line:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
  }
  
  .header__auth {
    margin-top: auto;
    flex-direction: column;
    width: 100%;
  }
  
  .header__auth .btn {
    width: 100%;
  }
  
  .hero__content {
    padding: var(--spacing-4);
    margin: var(--spacing-4);
  }
  
  .footer__nav-list,
  .footer__social,
  .footer__bottom {
    flex-direction: column;
    align-items: center;
  }
}