* {
  margin: 0;
  padding: 0;
}

canvas {
  display: block;
}

:root {
  --bg-color: #ffffff;
  --text-color: #222222;
  --accent-color: #ff7f50;
  --section-alt-bg: #fff7f5;
  --c-glass: #bbbbbc;
  --c-light: #fff;
  --c-dark: #000;
  --c-content: var(--text-color);
  --c-action: var(--accent-color);
  --c-bg: var(--bg-color);
  --glass-reflex-dark: 1;
  --glass-reflex-light: 1;
  --saturation: 150%;
}

body:has(input[value="dark"]:checked) {
  --bg-color: #1b1b1d;
  --text-color: #e1e1e1;
  --section-alt-bg: #2a2a2a;
  --accent-color: #03d5ff;
  --c-glass: #bbbbbc;
  --c-light: #fff;
  --c-dark: #000;
  --c-content: #e1e1e1;
  --c-action: #03d5ff;
  --c-bg: #1b1b1d;
  --glass-reflex-dark: 2;
  --glass-reflex-light: 0.3;
  --saturation: 150%;
}

body:has(input[value="dim"]:checked) {
  --bg-color: #152433;
  --text-color: #d5dbe2;
  --section-alt-bg: #203343;
  --accent-color: #ff48a9;
  --c-light: #99deff;
  --c-dark: #20001b;
  --c-glass: hsl(335 250% 74% / 1);
  --c-content: #d5dbe2;
  --c-action: #ff48a9;
  --c-bg: #152433;
  --glass-reflex-dark: 2;
  --glass-reflex-light: 0.7;
  --saturation: 200%;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-color);
  color: var(--text-color);
  font-family: system-ui, sans-serif;
  scroll-behavior: smooth;
  transition: background 400ms cubic-bezier(1, 0.0, 0.4, 1), color 400ms cubic-bezier(1, 0.0, 0.4, 1);
}

#progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  background: var(--accent-color);
  z-index: 2000;
  transition: width 0.25s ease;
}

  .matrix-canvas {
    position: fixed;
    top: 0;
    width: 250px;
    height: 100vh;
    pointer-events: none;
    z-index: 10;
    background: #000;
  }

#matrix-left {
  left: 0;
}

#matrix-right {
  right: 0;
}

/* Theme switcher */
/* Position theme switcher inline with top navigation bar */
.switcher {
  position: fixed;
  z-index: 1100;
  top: 4px;
  right: 20px;
  left: auto;
  margin: 0;
  transform: scale(0.5);
  transform-origin: top right;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 244px;
  max-width: 244px;
  height: 70px;
  box-sizing: border-box;
  padding: 8px 12px 10px;
  border: none;
  border-radius: 99em;
  font-size: var(--fz);
  background-color: color-mix(in srgb, var(--c-glass) 12%, transparent);
  backdrop-filter: blur(8px) saturate(var(--saturation));
  -webkit-backdrop-filter: blur(8px) saturate(var(--saturation));
  box-shadow: 
    inset 0 0 0 1px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 10%), transparent),
    inset 1.8px 3px 0px -2px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 90%), transparent), 
    inset -2px -2px 0px -2px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 80%), transparent), 
    inset -3px -8px 1px -6px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 60%), transparent), 
    inset -0.3px -1px 4px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 12%), transparent), 
    inset -1.5px 2.5px 0px -2px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent), 
    inset 0px 3px 4px -2px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent), 
    inset 2px -6.5px 1px -4px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent), 
    0px 1px 5px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent), 
    0px 6px 16px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 8%), transparent);
  transition: 
    background-color 400ms 
      cubic-bezier(1, 0.0, 0.4, 1),
    box-shadow 400ms
      cubic-bezier(1, 0.0, 0.4, 1);
}

.switcher__legend {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  border: 0;
  padding: 0;
  white-space: nowrap;
  clip-path: inset(100%);
  clip: rect(0 0 0 0);
  overflow: hidden;
}

.switcher__input {
  clip: rect(0 0 0 0);
  clip-path: inset(100%);
  height: 1px;
  width: 1px;
  overflow: hidden;
  position: absolute;
  white-space: nowrap;
}

.switcher__icon {
  display: block;
  width: 100%;
  transition: scale 200ms cubic-bezier(0.5, 0, 0, 1);
}

.switcher__option {
  --c: var(--c-content);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 0 16px;
  width: 68px;
  height: 100%;
  box-sizing: border-box;
  border-radius: 99em;
  opacity: 1;
  transition: all 160ms;
  color: var(--c);
}

.switcher__option:hover {
  --c: var(--c-action);
  cursor: pointer;
}

.switcher__option:hover .switcher__icon {
  scale: 1.2;
}

.switcher__option:has(input:checked) {
  --c: var(--c-content);
  cursor: auto;
}

.switcher__option:has(input:checked) .switcher__icon {
  scale: 1;
}

.switcher::after {
  content: '';
  position: absolute;
  left: 4px;
  top: 4px;
  display: block;
  width: 84px;
  height: calc(100% - 10px);
  border-radius: 99em;
  background-color: color-mix(in srgb, var(--c-glass) 36%, transparent);
  z-index: -1;
  box-shadow: 
    inset 0 0 0 1px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 10%), transparent),
    inset 2px 1px 0px -1px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 90%), transparent), 
    inset -1.5px -1px 0px -1px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 80%), transparent), 
    inset -2px -6px 1px -5px color-mix(in srgb, var(--c-light) calc(var(--glass-reflex-light) * 60%), transparent), 
    inset -1px 2px 3px -1px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 20%), transparent), 
    inset 0px -4px 1px -2px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 10%), transparent), 
    0px 3px 6px 0px color-mix(in srgb, var(--c-dark) calc(var(--glass-reflex-dark) * 8%), transparent);
}

.switcher:has(input[c-option="1"]:checked)::after {
  translate: 0 0;
  transform-origin: right;
  transition: 
    background-color 400ms 
      cubic-bezier(1, 0.0, 0.4, 1),
    box-shadow 400ms
      cubic-bezier(1, 0.0, 0.4, 1),
    translate 400ms 
      cubic-bezier(1, 0.0, 0.4, 1);
  animation: scaleToggle 440ms ease; 
}

.switcher:has(input[c-option="2"]:checked)::after {
  translate: 76px 0;
  transition: 
    background-color 400ms 
      cubic-bezier(1, 0.0, 0.4, 1),
    box-shadow 400ms
      cubic-bezier(1, 0.0, 0.4, 1),
    translate 400ms 
      cubic-bezier(1, 0.0, 0.4, 1);
  animation: scaleToggle2 440ms ease; 
}

.switcher[c-previous="1"]:has(input[c-option="2"]:checked)::after {
  transform-origin: left;
}

.switcher[c-previous="3"]:has(input[c-option="2"]:checked)::after {
  transform-origin: right;
}

.switcher:has(input[c-option="3"]:checked)::after {
  translate: 152px 0;
  transform-origin: left;
  transition: 
    background-color 400ms 
      cubic-bezier(1, 0.0, 0.4, 1),
    box-shadow 400ms
      cubic-bezier(1, 0.0, 0.4, 1),
    translate 400ms 
      cubic-bezier(1, 0.0, 0.4, 1);
  animation: scaleToggle3 440ms ease; 
}

@keyframes scaleToggle {
  0% { scale: 1 1; }
  50% { scale: 1.1 1; }
  100% { scale: 1 1; }
}

@keyframes scaleToggle2{
  0% { scale: 1 1; }
  50% { scale: 1.2 1; }
  100% { scale: 1 1; }
} 

@keyframes scaleToggle3 {
  0% { scale: 1 1; }
  50% { scale: 1.1 1; }
  100% { scale: 1 1; }
}

.navbar {
  position: sticky;
  top: 4px;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 1rem;
  background: var(--bg-color);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  z-index: 1000;
}

.logo {
  font-weight: bold;
  color: var(--accent-color);
  position: absolute;
  left: 1rem;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0 auto;
  padding: 0;
}

#nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  position: absolute;
  right: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-color);
  transition: color 0.3s;
}
.nav-links a:hover {
  color: var(--accent-color);
}
.nav-links a.active {
  color: var(--accent-color);
  border-bottom: 2px solid var(--accent-color);
}

.section {
  --tiltX: 0deg;
  --tiltY: 0deg;
  padding: 4rem 1rem;
  max-width: 800px;
  margin: auto;
  transform-style: preserve-3d;
  transform: perspective(800px) rotateX(var(--tiltY)) rotateY(var(--tiltX));
  transition: transform 0.2s ease;
  background: var(--section-alt-bg);
  position: relative;
  overflow: hidden;
}

.section > * {
  position: relative;
  z-index: 1;
}

.code-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: monospace;
  font-size: 1.3rem;
  color: var(--accent-color);
  opacity: 0;
  pointer-events: none;
  user-select: none;
  text-shadow: 0 0 10px var(--accent-color);
  transition: opacity 1s ease;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translate(-50%, -50%) translateY(0); }
  50% { transform: translate(-50%, -50%) translateY(-10px); }
  100% { transform: translate(-50%, -50%) translateY(0); }
}

.hidden {
  opacity: 0;
  transform: perspective(800px) rotateX(var(--tiltY)) rotateY(var(--tiltX)) translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.show {
  opacity: 1;
  transform: perspective(800px) rotateX(var(--tiltY)) rotateY(var(--tiltX)) translateY(0);
}

.timeline .entry {
  margin-bottom: 1.5rem;
}

.section ul {
  list-style: disc;
  padding-left: 1.25rem;
  margin: 1rem 0;
}

.skill-list {
  columns: 2;
  list-style: disc inside;
  padding-left: 1rem;
}

.skill-list li i,
.entry h3 i {
  margin-right: 0.5rem;
  color: var(--accent-color);
}

#contact-content p {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: inherit;
}

.contact-link i {
  font-size: 1.25rem;
  color: var(--accent-color);
  transition: transform 0.3s;
}

.contact-link:hover i {
  transform: scale(1.1);
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--accent-color);
  display: flex;
  align-items: center;
}

.copy-btn:focus {
  outline: 2px solid var(--accent-color);
}

.btn {
  display: inline-block;
  background: var(--accent-color);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.3s;
}
.btn:hover {
  opacity: 0.9;
}

.footer {
  position: fixed;
  bottom: 0.5rem;
  left: 0.5rem;
  z-index: 1001;
}

.footer .copyright-icon {
  position: relative;
  cursor: pointer;
  font-size: 1.25rem;
}

.footer .copyright-tooltip {
  visibility: hidden;
  opacity: 0;
  position: absolute;
  bottom: 100%;
  left: 0;
  background: var(--bg-color);
  color: var(--text-color);
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  white-space: nowrap;
  transition: opacity 0.2s;
  transform: translateY(-0.25rem);
  z-index: 1000;
}

.footer .copyright-icon:hover .copyright-tooltip,
.footer .copyright-icon.active .copyright-tooltip {
  visibility: visible;
  opacity: 1;
}

.profile-pic {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  margin: 0 auto 1rem;
}

.tagline {
  display: inline-block;
  white-space: pre-wrap;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto;
}

.tagline::after {
  content: '';
  display: inline-block;
  width: 2px;
  height: 1em;
  margin-left: 0.2rem;
  background: var(--accent-color);
  animation: blink-cursor 0.8s steps(2, start) infinite;
  vertical-align: bottom;
}

#summary {
  white-space: pre-wrap;
}

/* Contact dropdown styles */
.contact-card {
  border: 1px solid var(--accent-color);
  border-radius: 8px;
  max-width: 400px;
  margin: 0 auto;
  background: rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.contact-toggle {
  width: 100%;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
}

.contact-toggle .toggle-icon {
  transition: transform 0.3s ease;
}

.contact-toggle.open .toggle-icon {
  transform: rotate(180deg);
}

.contact-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, padding 0.3s ease;
  padding: 0 1rem;
}

.contact-content.open {
  padding: 1rem;
}

#back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--accent-color);
  color: #fff;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

#back-to-top.show {
  opacity: 1;
  pointer-events: auto;
}

#back-to-top:hover {
  transform: scale(1.1);
}

@media (min-width: 901px) {
  #back-to-top {
    right: calc(250px + 2rem);
  }
}

@media (max-width: 900px) {
  .matrix-canvas {
    display: none;
  }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-5px) scale(1.2); }
}

@keyframes blink-cursor {
  from { border-right-color: var(--accent-color); }
  to { border-right-color: transparent; }
}

@media (max-width: 600px) {
  .navbar {
    justify-content: center;
  }
  #nav-toggle {
    display: block;
  }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-color);
    gap: 0;
    display: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  }
  .nav-links.show {
    display: flex;
  }
  .nav-links a {
    padding: 0.75rem 1rem;
    display: block;
  }
  .skill-list {
    columns: 1;
  }
  #back-to-top {
    bottom: 1rem;
    right: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }
}
#intro-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(25,25,25,1);
  overflow: hidden;
  z-index: 3000;
  display: flex;
}

#main-content {
  display: none;
}

#main-content.show {
  display: block;
}

#blackhole {
  height: 100%;
  width: 100%;
  position: relative;
  display: flex;
}

#blackhole canvas {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  margin: auto;
}

.centerHover {
  width: 255px;
  height: 255px;
  background-color: transparent;
  border-radius: 50%;
  position: absolute;
  left: 50%;
  top: 50%;
  margin-top: -128px;
  margin-left: -128px;
  z-index: 2;
  cursor: pointer;
  line-height: 255px;
  text-align: center;
  transition: all 500ms;
}

.centerHover.open {
  opacity: 0;
  pointer-events: none;
}

.centerHover span {
  color: #666;
  font-family: serif;
  font-size: 18px;
  position: relative;
  transition: all 500ms;
}

.centerHover span:before,
.centerHover span:after {
  content: '';
  display: inline-block;
  height: 1px;
  width: 16px;
  margin: 0 12px 4px;
  background-color: #666;
  transition: all 500ms;
}

.centerHover:hover span {
  color: #DDD;
}

.centerHover:hover span:before,
.centerHover:hover span:after {
  background-color: #DDD;
}

/* Layout for two-column CV */
.cv-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  align-items: start;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.sidebar,
.content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-width: 0;
}

.cv-container .section {
  max-width: none;
  margin: 0;
  padding: 1.5rem;
}

.cv-container .contact-card {
  margin: 0;
}

@media (max-width: 800px) {
  .cv-container {
    display: flex;
    flex-direction: column;
    padding: 0 1rem;
  }

  .content {
    order: 1;
  }

  .sidebar {
    order: 2;
  }

  #skills {
    order: 1;
  }

  #projects {
    order: 2;
  }

  #certifications {
    order: 3;
  }

  #achievements {
    order: 4;
  }

  #contact {
    order: 5;
  }

  .matrix-canvas {
    display: none;
  }
}