:root {
  --primary-color: #FF0239;
  --text-color: #ffffff;
  --bg-color: #000000;
  --card-bg: rgba(255, 255, 255, 0.1);
}

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

body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  background-color: var(--bg-color);
  color: var(--text-color);
  overflow-x: hidden;
  max-width: 100vw;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Logo */
.logo__image {
  height: 40px;
  width: auto;
}

/* Button */
.button {
  display: inline-block;
  padding: 1rem 2rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

.button--primary {
  background: var(--primary-color);
  color: var(--bg-color);
}

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

.button--primary:hover,
.button--outline:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.button--outline:hover {
  background: var(--primary-color);
  color: var(--bg-color);
}

/* Header */
.header {
  padding: 1rem 0;
  background: rgba(0, 0, 0, 1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
}

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

.header__button {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s ease;
}

.header__button:hover {
  opacity: 0.8;
}

/* Hero */
.hero {
  position: relative;
  padding: 8rem 0 4rem;
  background: url('../images/crypto-bg.png');
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;
  max-width: 100vw;
  height: 720px;
  overflow: hidden;
  border-radius: 0 0 64px 64px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  transform: translateY(-50%) translateX(-50%);
  background-color: #FF0239;
  width: 365px;
  height: 365px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.9;
}

.hero::after {
  content: '';
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%) translateX(50%);
  background-color: #FF0239;
  width: 365px;
  height: 365px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.9;
}

.hero .container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero__title {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  color: #fff;
  text-shadow: 0 0 18px rgba(255, 255, 255, 0.6);
}

.hero__subtitle {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.hero__button {
  background-color: #FF0239;
  width: max-content;
  padding: 20px 28px 16px 42px;
  border-radius: 32px;
  color: #630015;
  font-size: 32px;
  font-weight: bold;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 0 24px -1px #FF0239;
  transition: all 0.3s ease;
}

.hero__button:hover {
  transform: scale(1.02);
}

/* Features */
.features {
  padding: 4rem 0;
}

.features .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 64px;
}

.features__grid {
  display: grid;
  grid-template-areas: "first second" "third third";
  gap: 24px;
}

.features__item {
  background-color: #141414;
  border-radius: 24px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.features__item:nth-child(1) {
  grid-area: first;
}

.features__item:nth-child(2) {
  grid-area: second;
}

.features__item:nth-child(3) {
  grid-area: third;
}

.features__item-title {
  color: #fff;
  font-size: 24px;
  font-weight: bold;
}

.features__item-image img {
  width: 100%;
  max-width: 100%;
  height: 200px;
  border-radius: 16px;
  object-fit: cover;
}

.features__item:nth-child(3) .features__item-image img {
  height: 370px;
}

.features__item-description {
  color: #fff;
  font-size: 18px;
}

/* Footer */
.footer {
  padding: 2rem 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Responsive */
@media screen and (max-width:768px) {

  .hero::before,
  .hero::after {
    display: none;
  }

  .header__nav {
    align-items: center;
    justify-content: center;
  }

  .header__button {
    display: none;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .features__grid {
    grid-template-areas: "first" "second" "third";
  }

  .features__item:nth-child(3) .features__item-image img {
    height: 200px;
  }

  .footer__content {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer__links {
    flex-direction: column;
    gap: 1rem;
  }
}