:root {
  --left-bg: #F3F4F4;
  --right-bg: #853953;
  --text-color: #111;
  --accent-color: #39856A;
}

body.dark {
  --left-bg: #191919;
  --right-bg: #222;
  --text-color: #eee;
  --accent-color: #ffcc00;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Mulish', 'Arial Black', sans-serif;
}

body, html {
  height: 100%;
  width: 100%;
}

.container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 100vh;
  transition: background-color 0.5s ease;
}

.left, .right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  color: var(--text-color);
  transition: all 0.5s ease-in-out;
}

.left {
  background-color: var(--left-bg);
  text-align: center;
}

.left h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.left h1 span {
  color: var(--accent-color);
}

.left p {
  font-size: 1.25rem;
  max-width: 400px;
  margin: 0 auto 2rem;
}

.left button {
  background-color: var(--accent-color);
  border: none;
  padding: 0.75rem 1.5rem;
  color: #000;
  font-weight: bold;
  cursor: pointer;
  font-size: 1rem;
  border-radius: 0.5rem;
  transition: transform 0.3s;
}

.left button:hover {
  transform: scale(1.05);
}

.right {
  background-color: var(--right-bg);
  text-align: center;
  color: #fff;
}

.right img {
  border-radius: 50%;
  border: 5px solid #fff;
  margin-bottom: 1rem;
  width: 300px;
  height: 300px;
  object-fit: cover;
  box-shadow: 0 0 20px rgba(0,0,0,0.2);
}

.right h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.right p {
  font-size: 1rem;
  max-width: 300px;
  margin: 0 auto;
}

@media screen and (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr 1fr;
  }

  .left, .right {
    padding: 1.5rem;
  }

  .left h1 {
    font-size: 2.2rem;
  }

  .right img {
    width: 150px;
    height: 150px;
  }
}