:root {
  /* Brand Colors */
  --color-primary: #FFFFFF;
  --color-primary-hover: #FFFFFF;
  --color-secondary: #FFFFFF;

  /* Neutral Colors */
  --color-bg: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-text-main: #FFFFFF;
  --color-text-muted: #FFFFFF;
  --color-white: #F9F9F9;

  /* Semantic Colors */
  --color-error: #FFFFFF;
  --color-success: #FFFFFF;

  /* Font Sizes */
  --fs-sm: 0.875rem;   /* 14px */
  --fs-base: 1rem;     /* 16px */
  --fs-md: 1.25rem;    /* 20px */
  --fs-lg: 1.5rem;     /* 24px */
  --fs-xl: 2rem;       /* 32px */
  --fs-display: 3rem;  /* 48px */
  
  /* Font Weights */
  --fw-normal: 400;
  --fw-bold: 700;

  /* Font Styles */
  --fs-italic: italic;

  /* Spacings */
  --space-xs: 0.25rem;  /* 4px */
  --space-sm: 0.5rem;   /* 8px */
  --space-md: 1rem;     /* 16px */
  --space-lg: 1.5rem;   /* 24px */
  --space-xl: 2rem;     /* 32px */
  --space-2xl: 4rem;    /* 64px */

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;

  /* Shadows */

  /* Font Families */
  --ff-lt: "helvetica-neue-lt-pro", sans-serif;
  --ff-lt-cond: "helvetica-neue-lt-pro-cond", sans-serif;

  /* Breakpoints */
  --bp-sm: 640px;
  --bp-md: 768px;
  --bp-lg: 1024px;
  --bp-xl: 1280px;
}

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

body {
  height: 100vh;
  height: 100dvb;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-image: url('../images/hero-background.png');
  background-color: #00000066;
  background-blend-mode: darken;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
}

.header {
  display: flex;
  align-items: center;
}

.nav {
  display: flex;
  padding: var(--space-lg);
}

.isotype-link {
  display: inline-block;
}

.isotype {
  width: 50px;
  height: 50px;
}

.main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  width: 100%;
  margin-top: auto;
}

.primary-info-container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  max-width: 600px;
  margin: auto;
}

.h1 {
  font-family: var(--ff-lt);
  font-weight: 300;
  font-size: var(--fs-xl);
  text-align: left;
  color: var(--color-white);
  width: 100%;
}

.categories-container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  width: 100%;
}

.h2 {
  font-family: var(--ff-lt);
  font-weight: 400;
  font-size: var(--fs-sm);
  text-align: left;
  color: var(--color-white);
}

.border-right {
  border-right: 1px solid var(--color-white);
  padding-right: var(--space-md);
}

.contact-info {
  display: flex;
  flex-direction: column;
  padding: var(--space-lg);
  width: 100%;
  margin-top: auto;
  margin-bottom: auto;
}

.contact-text {
  font-family: var(--ff-lt);
  font-weight: 300;
  font-size: var(--fs-md);
  text-align: left;
  color: var(--color-white);
  max-width: 600px;
}

.contact-text a {
  font-weight: 500;
  color: var(--color-white);
  text-decoration: none;
}

.footer {
  padding: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-links-container {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.social-link {
  position: relative;
  font-family: var(--ff-lt);
  font-weight: 400;
  font-size: var(--fs-sm);
  text-align: left;
  color: var(--color-white);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  transition: all 0.75s ease-in-out;
}

.social-link::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: -2px;
  left: 0;
  background-color: var(--color-white);
  opacity: 0;
  transition: opacity 0.75s ease-in-out;
}

.social-link:hover::after {
  opacity: 1;
}

.social-link svg {
  width: 24px;
  height: 24px;
}

.copyright-text {
  font-family: var(--ff-lt);
  font-weight: 400;
  font-size: var(--fs-sm);
  text-align: left;
  color: var(--color-white);
}

@media (min-width: 640px) {

}

@media (min-width: 768px) {
  .nav {
    padding: var(--space-xl);
  }

  .hero {
    padding: var(--space-xl);
  }

  .primary-info-container {
    gap: var(--space-lg);
  }

  .h1 {
    font-size: var(--fs-display);
  }

  .h2 {
    font-size: var(--fs-md);
  }

  .contact-info {
    padding: var(--space-xl);
  }

  .contact-text {
    font-size: var(--fs-lg);
  }

  .footer {
    padding: var(--space-xl);
  }

  .social-links-container {
    gap: var(--space-lg);
  }

  .social-link {
    font-size: var(--fs-md);
  }

  .copyright-text {
    font-size: var(--fs-md);
  }

  @keyframes moveLogo {
    0% {
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(4);
      opacity: 0;
    }
    33% {
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(4);
      opacity: 1;
    }
    66% {
      top: 50%;
      left: 50%;
      transform: translate(-50%, -50%) scale(1);
      opacity: 1;
    }
    100% {
      top: var(--space-xl);
      left: var(--space-xl);
      transform: translate(0, 0) scale(1);
    }
  }
}

@media (min-width: 1024px) {
  .primary-info-container {
    max-width: 800px;
  }

  .h1 {
    font-size: var(--fs-display);
    text-align: center;
  }
}

@media (min-width: 1280px) {
  .primary-info-container {
    max-width: max-content;
  }
}

/* Animations */
.intro-animation {
  position: fixed;
  z-index: 100;
  animation: moveLogo 3s ease-out forwards;
}

.content-fade-in {
  opacity: 0;
  animation: fadeInContent 1s ease-in-out 3s forwards;
}

@keyframes moveLogo {
  0% {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
  33% {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(4);
    opacity: 1;
  }
  66% {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }
  100% {
    top: var(--space-lg);
    left: var(--space-lg);
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
}

@keyframes fadeInContent {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}