/* This is the main stylesheet for the site. */

/* Typography Variables */
:root {
  --font-heading: 'CMU Serif', 'Computer Modern Serif', 'Latin Modern Roman', Georgia, serif;
  --font-body: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
}

/* Smallcaps for acronyms */
.smallcaps {
  font-variant: small-caps;
  font-size: 1.05em;
  letter-spacing: 0.05em;
}

/* Desktop */
header {
  padding-right: 0;
  }

  main {
  line-height: 1.4;
  }

  @font-face {
    font-family: 'ZT Bros Oskon 90s';
    src: url('../fonts/ZTBrosOskon90s.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
  }
  
  body {
    background-color: #fffff8;  /* Tufte off-white */
    color: #111;
    font-family: var(--font-body);
    font-size: 19px;
    line-height: 1.4;
    margin: 0 auto;
    max-width: 72ch;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    padding-top: 3rem;
    padding-bottom: 3rem;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    font-kerning: normal;
    font-variant-ligatures: common-ligatures;
  }

  /* Monospace for code-related elements */
  pre, code, kbd, samp {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
  }

  /* Headings scale tuned for readability */
  h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.5rem);
    line-height: 1.15;
    font-weight: 400;
    letter-spacing: -0.01em;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
  }

  .slash-title {
    color: #6b7280;
    font-weight: 500;
  }

  h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 1.75rem);
    font-weight: 400;
    letter-spacing: 0;
    margin-top: 1.5rem;
    margin-bottom: 0.4rem;
  }

  h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    font-weight: 400;
    letter-spacing: 0;
    margin-top: 1rem;
    margin-bottom: 0.3rem;
  }

  h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: 0;
    margin-top: 0.75rem;
    margin-bottom: 0.25rem;
  }

  /* Prose tweaks: inline and block code */
  code {
    background: #f6f8fa;
    padding: 0.15em 0.35em;
    border-radius: 0.25rem;
    font-size: 0.95em;
  }

  pre {
    background: #f6f8fa; /* GitHub-like */
    border-radius: 0.375rem;
    padding: 1rem;
    overflow-x: auto;
  }

  pre code {
    background: transparent;
    padding: 0;
    font-size: 0.95em;
  }

  /* Prose tweaks: blockquotes */
  blockquote {
    border-left: 2px solid #e5e7eb;
    padding-left: 1rem;
    margin: 1.25rem 0;
    color: #374151;
  }

  /* Paragraph rhythm */
  p {
    margin: 0 0 0.75em;
    hyphens: auto;
  }

  /* Dark theme variants */
  body.dark-theme code {
    background: #151a20;
    color: #e6edf3;
  }

  body.dark-theme pre {
    background: #0d1117; /* GitHub dark */
  }

  body.dark-theme blockquote {
    border-left-color: #334155;
    color: #cbd5e1;
  }

  /* Lists spacing within prose */
  ul, ol {
    padding-left: 1.25rem;
  }
  li:not(:last-child) {
    margin-bottom: 0.5rem;
  }
  
.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 15px;
}

.header-left h1 {
  margin: 0;
  font-family: var(--font-heading);
}

.profile-pic {
  width: 100px;
  height: 100px;
  border-radius: 100%;
  margin-right: 0;
  margin-bottom: 0;
}

.name-and-toggle {
  display: flex;
  align-items: center;
  gap: 15px;
}

.name-and-toggle h2 {
  margin: 0;
}

#theme-toggle {
  background: none;
  border: none;
  font-size: 1em;
  cursor: pointer;
  padding: 5px;
  border-radius: 50%;
  transition: background-color 0.3s;
  color: inherit;
}

#theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

body.dark-theme #theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}
body.dark-theme #theme-toggle {
  color: #e0e0e0;
}

/* Size Lucide SVG icons inside the theme toggle */
#theme-toggle svg {
  width: 1.2em;
  height: 1.2em;
}

/* Update dark theme styles */
body.dark-theme {
  background-color: #1a1a1a;
  color: #e0e0e0;
}

body.dark-theme a:link,
body.dark-theme a:visited {
  color: #66b3ff;
}

body.dark-theme a:hover,
body.dark-theme a:active {
  color: #99ccff;
}
  
  footer {
  padding-top: 2%;
  padding-bottom: 2%;
  font-size: 100%;
  align-items: center;
  }
  
  a:link,
  a:visited {
  color: #1f2b38;
  background-color: transparent;
  text-decoration: none;
  }
  
  a:hover {
  color: #0366D6;
  background-color: transparent;
  text-decoration: underline;
  }
  
  .social-media-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 15px;
}

.social-media-list li a {
  color: #111;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
}

.social-media-list li a i {
  width: 25px;
}

.social-media-list li a span {
  font-size: 1rem;
}

/* add dark theme support for social icons */
body.dark-theme .social-media-list li a {
  color: #e0e0e0;
}

.social-media-list li a img {
  width: 30px;
  height: 30px;
  margin-right: 5px;
}
  
/* Global subtle vb banner at viewport bottom */
body::after {
  content: "vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb vbvbvbvb";
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 28px;
  line-height: 28px;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: clip;
  opacity: 0.8;
  color: #111;
  padding-left: 10px;
  pointer-events: none;
  z-index: 100;
  transform: translateX(var(--vb-banner-x-offset, 0px));
  backdrop-filter: blur(8px) saturate(140%) contrast(105%);
  background-color: rgba(255, 255, 255, 0.22);
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

/* Banner behind the vb train that can animate with scroll */
body::before {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 28px;
  background: repeating-linear-gradient(180deg, rgba(0,0,0,0.06) 0 2px, rgba(0,0,0,0) 2px 8px);
  opacity: 0.5;
  z-index: 99; /* behind text */
  pointer-events: none;
  transform: translateY(var(--vb-banner-offset, 0px));
}

/* Dark theme glass effect for vb bar */
body.dark-theme::after {
  background-color: rgba(0, 0, 0, 0.28);
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  color: #e0e0e0;
}

/* Model viewer section styling */
.model-section {
  margin-top: 20px;
}

model-viewer {
  width: 100%;
  height: 320px;
  background: transparent;
}

@media (max-width: 600px) {
  model-viewer {
    height: 240px;
  }
}

/* Responsive tweaks for narrow viewports */
@media (max-width: 640px) {
  body {
    padding-left: 1rem;
    padding-right: 1rem;
    padding-top: 2rem;
  }
  h1 {
    margin-top: 1.25rem;
    margin-bottom: 0.5rem;
  }
}

/* ============================================
   Lens Scroller Navigation
   ============================================ */

.lens-scroller-wrapper {
  position: relative;
  width: 100%;
  margin-bottom: 1.5rem;
}

.lens-scroller-wrapper.is-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: inherit;
  padding: 0.75rem 0;
  transition: opacity 0.3s ease;
}

.lens-scroller-wrapper.is-fixed .lens-scroller {
  max-width: 72ch;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.lens-scroller-placeholder {
  display: none;
  height: 2.5rem;
  margin-bottom: 1.5rem;
}

.lens-scroller-placeholder.active {
  display: block;
}

.lens-scroller {
  position: relative;
  overflow: hidden;
  height: 2rem;
  /* Edge fade mask - very subtle fade at edges */
  mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 5%, black 95%, transparent);
}

.lens-scroller-track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  cursor: grab;
  user-select: none;
  will-change: transform;
  width: max-content;
}

.lens-scroller-track.grabbing {
  cursor: grabbing;
}

.lens-item {
  font-family: 'CMU Serif', 'Computer Modern Serif', 'Latin Modern Roman', Georgia, serif;
  font-variant: small-caps;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
  text-decoration: none;
  color: inherit;
  transition: opacity 0.15s ease, filter 0.15s ease;
  flex-shrink: 0;
  padding: 0.5rem 0;
}

.lens-item:hover {
  text-decoration: none;
}

.lens-item.current {
  font-weight: 700;
}

/* Dark theme support */
body.dark-theme .lens-scroller-wrapper.is-fixed {
  background-color: #1a1a1a;
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .lens-scroller-wrapper.is-fixed .lens-scroller {
    padding: 0 1rem;
  }

  .lens-scroller-track {
    gap: 2rem;
  }

  .lens-item {
    font-size: 0.65rem;
  }
}

/* ============================================
   Spotify Lazy Load Placeholder
   ============================================ */

.spotify-placeholder {
    width: 100%;
    height: 352px;
    border-radius: 12px;
    background: linear-gradient(135deg, #1a1a1a 0%, #282828 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.spotify-placeholder:hover {
    transform: scale(1.01);
    box-shadow: 0 4px 20px rgba(29, 185, 84, 0.3);
}

.spotify-load-btn {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-family: inherit;
    font-size: 1rem;
}

.spotify-load-btn svg {
    transition: transform 0.2s ease;
}

.spotify-placeholder:hover .spotify-load-btn svg {
    transform: scale(1.1);
}

.spotify-placeholder iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 12px;
}

.spotify-placeholder.loaded {
    cursor: default;
}

.spotify-placeholder.loaded:hover {
    transform: none;
    box-shadow: none;
}

/* ============================================
   View Transitions API
   ============================================ */

/* Keep shell elements stable during transitions */
header, .lens-scroller-wrapper {
    view-transition-name: shell;
}

::view-transition-old(shell),
::view-transition-new(shell) {
    animation: none;
}

/* Smooth content transitions */
main, #content {
    view-transition-name: content;
}

::view-transition-old(content) {
    animation: vt-fade-out 0.1s ease-out forwards;
}

::view-transition-new(content) {
    animation: vt-fade-in 0.15s ease-in forwards;
}

@keyframes vt-fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes vt-fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}