body {
  background-color: var(--background-color);
  color: var(--text-color);
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

/* Animated Background Disks */
.disk {
  position: absolute;
  border-radius: 999px;
  width: 300px;
  height: 300px;
  background-color: var(--primary-color);
  filter: brightness(90%);
}

.disk-1 {
  width: 33vw;
  height: 33vw;
  left: 73px;
  top: 88px;
}

.disk-2 {
  width: 28vw;
  height: 28vw;
  left: 671px;
  top: 88px;
}

.disk-3 {
  width: 30vw;
  height: 30vw;
  right: 10vw;
  top: 60vh;
}

/* Header Section */
.header {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  box-sizing: border-box;
  position: relative;
}

.header * {
  z-index: 1;
}

.background {
  z-index: 0;
  filter: blur(min(999px, 50vw));
  position: absolute;
  width: 100vw;
  height: 100vh;
  left: 0px;
  top: 0px;
  overflow: hidden;
}

/* Header Typography */
.header h1 {
  font-size: clamp(28px, 8vw, 48px);
  margin-bottom: clamp(30px, 8vw, 90px);
  margin-top: clamp(20px, 5vw, 50px);
  text-align: center;
  line-height: 1.2;
}

#header-desc {
  font-size: clamp(18px, 5vw, 40px);
  text-align: center;
  width: 90vw;
  max-width: 845px;
  line-height: 1.4;
  margin: 0 auto;
}

#bottom-btn {
  margin-top: clamp(25px, 5vw, 50px);
  width: clamp(60px, 15vw, 103px);
  height: clamp(60px, 15vw, 103px);
  cursor: pointer;
  transition: transform 0.3s ease;
}

#bottom-btn:hover {
  transform: scale(1.1);
}

/* Topic Blocks */
.topic-block {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 40px 20px;
  box-sizing: border-box;
}

.topic-block .content {
  width: 90vw;
  max-width: 1200px;
  font-size: clamp(16px, 3vw, 18px);
  line-height: 1.6;
}

.topic-block h1 {
  font-size: clamp(24px, 6vw, 36px);
  text-align: center;
  margin-bottom: 30px;
}

/* History Section */
.history .content p {
  margin: 15px 0;
}

.history {
  text-align: center;
}

/* IT Skills Section */
.it-skills .content {
  overflow-x: visible;
}

#os-message {
  font-weight: bold;
  font-size: clamp(14px, 3vw, 16px);
}

/* Wheel Container */
.wheel-container {
  margin: 20px 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Skills Wheel Size */
:root {
  --skills-wheel-size: clamp(80px, 20vw, 120px);
}

/* Socials */
.socials {
  overflow: visible;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin: 20px 0;
}

/* Links */
.link {
  font-size: clamp(14px, 4vw, 18px);
  transition: transform 0.3s ease;
  display: inline-block;
}

.last-update-project {
  color: gray;
  font-size: clamp(12px, 2.5vw, 14px);
  margin-left: 5px;
}

/* Animations - Disabled on Mobile for Performance */
@media (prefers-reduced-motion: no-preference) and (min-width: 768px) {
  [data-inviewport="from-right"] {
    transition: transform 0.5s ease-out;
    transform: translate(200px);
  }

  [data-inviewport="from-right"].is-inViewport {
    transform: translate(0);
  }

  [data-inviewport="from-left"] {
    transition: transform 0.5s ease-out;
    transform: translate(-200px);
  }

  [data-inviewport="from-left"].is-inViewport {
    transform: translate(0);
  }

  [data-inviewport="fade-in"].is-inViewport {
    animation: fade-in 0.5s ease-out;
  }
}

/* Keyframes */
@keyframes fade-in {
  0% {
    opacity: 0;
    transform: translateY(20px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Tablet Styles */
@media (min-width: 768px) {
  .header {
    padding: 0 40px;
  }

  .disk-1 {
    width: 40vw;
    height: 40vw;
    max-width: 300px;
    max-height: 300px;
    left: -10vw;
    top: 8vh;
  }

  .disk-2 {
    width: 35vw;
    height: 35vw;
    max-width: 280px;
    max-height: 280px;
    right: -8vw;
    top: 12vh;
  }

  .disk-3 {
    width: 38vw;
    height: 38vw;
    max-width: 290px;
    max-height: 290px;
    right: -5vw;
    top: 65vh;
  }

  .topic-block {
    padding: 60px 40px;
  }

  .topic-block .content {
    width: 85vw;
  }

  #header-desc {
    width: 80vw;
  }

  .socials {
    gap: 20px;
  }
}

/* Desktop Styles */
@media (min-width: 1024px) {
  .header {
    padding: 0 60px;
  }

  .disk-1 {
    width: 33vw;
    height: 33vw;
    max-width: 400px;
    max-height: 400px;
    left: 73px;
    top: 88px;
  }

  .disk-2 {
    width: 28vw;
    height: 28vw;
    max-width: 350px;
    max-height: 350px;
    left: 60vw;
    top: 88px;
  }

  .disk-3 {
    width: 30vw;
    height: 30vw;
    max-width: 380px;
    max-height: 380px;
    right: 10vw;
    top: 60vh;
  }

  .topic-block {
    height: 100vh;
    padding: 80px 60px;
  }

  .topic-block .content {
    width: 80vw;
  }

  .history {
    text-align: left;
  }

  .topic-block h1 {
    text-align: left;
  }

  /* Re-enable full animations for desktop */
  [data-inviewport="from-right"] {
    transform: translate(400px);
  }

  [data-inviewport="from-left"] {
    transform: translate(-400px);
  }

  :root {
    --skills-wheel-size: 150px;
  }
}

/* Large Desktop Styles */
@media (min-width: 1440px) {
  .header {
    padding: 0 80px;
  }

  .topic-block {
    padding: 100px 80px;
  }

  .topic-block .content {
    width: 75vw;
    max-width: 1400px;
  }

  .disk-2 {
    left: 671px;
  }

  :root {
    --skills-wheel-size: 180px;
  }
}

/* High-DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .background {
    filter: blur(min(999px, 40vw));
  }
}

/* Reduce Motion for Accessibility */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-inviewport="from-right"],
  [data-inviewport="from-left"] {
    transform: none;
    transition: none;
  }
}

/* Print Styles */
@media print {
  .background,
  .disk,
  #bottom-btn {
    display: none;
  }

  .header {
    height: auto;
    page-break-after: always;
  }

  .topic-block {
    height: auto;
    page-break-inside: avoid;
  }
}