:root {
  --primary-color: #e67e22;
  --primary-color-1: #e67e22;
  --primary-color-2: #cf711f;
  --primary-color-3: #d35400;
  --gray-1: #111;
  --gray-2: #333;
  --gray-3: #555;

  --dark-primary-color: #ff7f50; /* Coral */
  --dark-primary-color-1: #ff6347; /* Tomato */
  --dark-primary-color-2: #ff4500; /* OrangeRed */
  --dark-primary-color-3: #dc143c; /* Crimson */
  --dark-gray-1: #eee; /* Light gray for text */
  --dark-gray-2: #ccc; /* Medium gray for secondary text */
  --dark-gray-3: #aaa; /* Dark gray for tertiary text */
  --dark-background-color: #222; /* Very dark gray for backgrounds */
  --dark-background-color-1: #333; /* Dark gray for secondary backgrounds */
  --dark-background-color-2: #444; /* Medium dark gray for tertiary backgrounds */
}

.theme {
  position: absolute;
  top: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.8);
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.2);
  color: var(--gray-2);
  cursor: pointer;
  z-index: 999;
  margin: 10px;
  padding: 10px;
  font-size: 20px;
  border: none;
  border-radius: 1000px;
  transition: all 0.3s;
  width: 50px;
  height: 50px;
}

.theme:hover,
.theme:focus {
  filter: drop-shadow(0 0 0.75rem rgba(0, 0, 0, 0.2));
}

body.dark .theme {
  color: var(--dark-gray-2);
  background-color: var(--dark-background-color-1);
}

.back-to-top {
  position: fixed;
  bottom: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.8);
  box-shadow: 10px 10px 20px rgba(0, 0, 0, 0.2);
  color: var(--gray-2);
  cursor: pointer;
  z-index: 999;
  margin: 10px;
  padding: 10px;
  font-size: 20px;
  border: none;
  border-radius: 1000px;
  transition: all 0.3s;
  width: 50px;
  height: 50px;
  text-align: center;
}

body.dark .back-to-top {
  color: var(--dark-gray-2);
  background-color: var(--dark-background-color-1);
}

.container {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

section.hero {
  background-color: #fdf2e9;
  padding: 5rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

body.dark .hero {
  background-color: var(--dark-background-color);
}

.hero__return-home-button {
  font-size: 1.2rem;
  padding: 4px 0;
  border: none;
  border-radius: 0;
  border-bottom: 1px solid var(--primary-color);
  color: var(--primary-color);
  background-color: transparent;
}

body.dark .hero__return-home-button {
  color: var(--dark-primary-color);
  border-bottom: 1px solid var(--dark-primary-color);
}

.hero__return-home-button:hover,
.hero__return-home-button:focus {
  background-color: transparent;
  border-bottom-color: transparent;
  color: var(--primary-color-2);
}

body.dark .hero__return-home-button:hover,
body.dark .hero__return-home-button:focus {
  background-color: transparent;
  border-bottom-color: transparent;
  color: var(--dark-primary-color-2);
}

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

.hero__title {
  font-size: 3rem;
  line-height: 1.1;
  font-weight: bold;
  color: var(--gray-1);
  letter-spacing: -0.5px;
}

body.dark .hero__title {
  color: var(--dark-gray-1);
}

.hero__description {
  font-size: 1.6rem;
  line-height: 1.6;
  color: var(--gray-2);
}

body.dark .hero__description {
  color: var(--dark-gray-2);
}

section.project {
  background-color: #fff;
  padding: 5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

body.dark .project {
  background-color: var(--dark-background-color-1);
}

.project__image-frame {
  width: 100%;
  height: 100%;
  overflow: hidden;
  border-radius: 0.5rem;
  box-shadow: 0 0 1rem rgba(0, 0, 0, 0.2);
  margin-bottom: 2rem;
}

.project__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: all 0.3s;
}

body.dark .project__image {
  filter: brightness(0.7);
}

body.dark .project__image:hover,
body.dark .project__image:focus {
  filter: brightness(1);
}

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

.project__question {
  font-size: 1.6rem;
  line-height: 1.6;
  color: var(--gray-2);
}

body.dark .project__question {
  color: var(--dark-gray-2);
}

.project__answer {
  font-size: 1.2rem;
  line-height: 1.6;
  color: var(--gray-3);
}

body.dark .project__answer {
  color: var(--dark-gray-3);
}

.project__link {
  color: var(--primary-color);
  transition: all 0.3s;
}

.project__link:hover,
.project__link:focus {
  color: var(--primary-color-2);
}

body.dark .project__link {
  color: var(--dark-primary-color);
}

body.dark .project__link:hover,
body.dark .project__link:focus {
  color: var(--dark-primary-color-2);
}

.footer {
  background-color: #fdf2e9;
  padding: 5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

body.dark .footer {
  background-color: var(--dark-background-color);
}

.footer__copyright {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-2);
}

body.dark .footer__copyright {
  color: var(--dark-gray-2);
}

.footer__social {
  display: flex;
  flex-direction: row;
  gap: 1rem;
}

.footer__social-link {
  color: var(--primary-color-2);
  font-size: 1.6rem;
  transition: all 0.3s;
}

.footer__social-link:hover,
.footer__social-link:focus {
  color: var(--primary-color-3);
}

body.dark .footer__social-link {
  color: var(--dark-primary-color-2);
}

body.dark .footer__social-link:hover,
body.dark .footer__social-link:focus {
  color: var(--dark-primary-color-3);
}

.footer__text-link-group {
  display: flex;
  flex-direction: row;
  gap: 1rem;
}

.footer__text-link {
  color: var(--gray-2);
  font-size: 0.8rem;
  transition: all 0.3s;
}

body.dark .footer__text-link {
  color: var(--dark-gray-2);
}

.footer__text-link:hover,
.footer__text-link:focus {
  color: var(--gray-3);
}

body.dark .footer__text-link:hover,
body.dark .footer__text-link:focus {
  color: var(--dark-gray-3);
}

@media screen and (max-width: 768px) {
  section.hero {
    padding: 2rem;
  }

  section.project {
    padding: 2rem;
  }

  .footer {
    padding: 2rem;
  }
}

@media screen and (max-width: 480px) {
  .hero__title {
    font-size: 2rem;
  }

  .hero__description {
    font-size: 1.2rem;
  }

  .project__question {
    font-size: 1.2rem;
  }

  .project__answer {
    font-size: 1rem;
  }
}