:root{
  --bg0: #070A14;
  --bg1: #0B1022;
  --panel: rgba(255,255,255,0.06);
  --panel-2: rgba(255,255,255,0.10);
  --text: rgba(255,255,255,0.88);
  --muted: rgba(255,255,255,0.66);
  --faint: rgba(255,255,255,0.40);
  --border: rgba(255,255,255,0.12);
  --shadow: 0 18px 60px rgba(0,0,0,0.55);
  --radius: 18px;
  --maxw: 1120px;
  --navh: 72px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  color:var(--text);
  background: radial-gradient(1000px 700px at 20% 10%, rgba(90,120,255,0.22), transparent 55%),
              radial-gradient(900px 600px at 70% 25%, rgba(255,80,190,0.16), transparent 55%),
              radial-gradient(900px 700px at 35% 80%, rgba(80,255,210,0.12), transparent 55%),
              linear-gradient(180deg, var(--bg0), var(--bg1));
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  line-height:1.55;
  overflow-x:hidden;
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }
small{ color:var(--muted); }

/* Global media defaults: prevent images from overflowing and preserve aspect ratios */
img{ max-width:100%; height:auto; display:block; }
svg{ max-width:100%; height:auto; }


#bg-canvas{
  position:fixed;
  inset:0;
  z-index:-1;
  width:100%;
  height:100%;
  pointer-events:none;
  opacity:0.95;
}

.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding: 0 18px;
}

.skip-link{
  position:absolute;
  left:-999px;
  top:auto;
  width:1px;
  height:1px;
  overflow:hidden;
}
.skip-link:focus{
  left:18px;
  top:18px;
  width:auto;
  height:auto;
  padding:10px 12px;
  background:rgba(0,0,0,0.8);
  border:1px solid var(--border);
  border-radius:12px;
  z-index:9999;
}

.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  backdrop-filter: blur(12px);
  background: rgba(6, 9, 22, 0.60);
  border-bottom:1px solid var(--border);
}
.navbar{
  height:var(--navh);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  letter-spacing:0.2px;
}
.brand .dot{
  width:10px;height:10px;border-radius:999px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.9), rgba(120,150,255,0.5));
  box-shadow: 0 0 16px rgba(120,150,255,0.45);
}

.navlinks{
  display:flex;
  align-items:center;
  gap:14px;
}
.navlinks a{
  padding:10px 10px;
  border-radius:12px;
  color:var(--muted);
  font-weight:600;
}
.navlinks a.active{
  color:var(--text);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
}
.navlinks a:hover{
  background: rgba(255,255,255,0.06);
  text-decoration:none;
}

.nav-right{
  display:flex;
  align-items:center;
  gap:10px;
}
.icon-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 12px;
  border:1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  color:var(--muted);
}
.icon-link:hover{ text-decoration:none; background: rgba(255,255,255,0.07); color:var(--text); }

.burger{
  display:none;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color:var(--text);
}
.burger:hover{ background: rgba(255,255,255,0.07); }

@media (max-width: 860px){
  .burger{ display:inline-flex; align-items:center; justify-content:center; }
  .navlinks{
    display:none;
    position:absolute;
    top: calc(var(--navh) + 8px);
    right: 18px;
    flex-direction:column;
    width: min(320px, calc(100vw - 36px));
    background: rgba(6, 9, 22, 0.92);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 10px;
    box-shadow: var(--shadow);
  }
  .navlinks.open{ display:flex; }
  .navlinks a{ width:100%; }
}

main{
  padding: 28px 0 64px;
  min-height: calc(100vh - var(--navh));
}

.page-hero{
  margin-top: 10px;
  padding: 28px 0 18px;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight:600;
}
.h1{
  font-size: clamp(30px, 4vw, 44px);
  line-height:1.1;
  margin: 14px 0 10px;
  letter-spacing:-0.4px;
}
.lead{
  color: var(--muted);
  max-width: 70ch;
  font-size: 1.05rem;
}

.cta-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top: 18px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 11px 14px;
  border-radius: 14px;
  font-weight:700;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
}
.btn.primary{
  background: linear-gradient(180deg, rgba(120,150,255,0.24), rgba(255,255,255,0.06));
  border-color: rgba(120,150,255,0.35);
}
.btn:hover{ text-decoration:none; background: rgba(255,255,255,0.09); }
.btn.primary:hover{ background: linear-gradient(180deg, rgba(120,150,255,0.30), rgba(255,255,255,0.08)); }

.btn.small{
  padding: 8px 10px;
  border-radius: 12px;
  font-size: 0.92rem;
}


.grid{
  display:grid;
  gap:14px;
}
.grid.two{ grid-template-columns: 1fr 1fr; }
.grid.three{ grid-template-columns: repeat(3, 1fr); }
@media (max-width: 920px){ .grid.three{ grid-template-columns: 1fr; } }
@media (max-width: 860px){ .grid.two{ grid-template-columns: 1fr; } }

.card{
  padding: 16px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(6, 9, 22, 0.72);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  box-shadow: 0 12px 30px rgba(0,0,0,0.20);
  min-width: 0; /* allow cards to shrink inside grids without overflowing */
}
.card h3{ margin:0 0 8px; font-size: 1.05rem; }
.card p{ margin: 8px 0 0; color: var(--muted); }

.section-title{
  margin: 34px 0 12px;
  font-size: 1.1rem;
  color: var(--text);
  letter-spacing: 0.2px;
}
.section-subtitle{
  margin: -4px 0 16px;
  color: var(--muted);
}

.pill-row{ display:flex; gap:8px; flex-wrap:wrap; margin-top:10px; min-width:0; max-width:100%; }
.pill{
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight:700;
  font-size: 0.78rem;
}

.meta{
  margin-top: 10px;
  font-size: 0.9rem;
  color: var(--faint);
}

.filters{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 12px 0 12px;
}
.filter-btn{
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  font-weight:800;
  font-size: 0.82rem;
  cursor:pointer;
}
.filter-btn.active{
  background: rgba(255,255,255,0.10);
  color: var(--text);
}

.project-grid{
  display:grid;
  /* Responsive by construction: cards wrap as space allows (no brittle breakpoints). */
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

/* Project directory layout: sidebar filters on desktop */
.project-layout{
  display:grid;
  grid-template-columns: 240px 1fr;
  gap: 16px;
  align-items:start;
}

.project-layout .filters{
  margin: 12px 0 0;
  padding: 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(6, 9, 22, 0.72);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  position: sticky;
  top: calc(var(--navh) + 14px);
  max-height: calc(100vh - var(--navh) - 28px);
  overflow:auto;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.project-layout .filter-btn{
  width:100%;
  text-align:left;
  border-radius: 12px;
}

.project-layout .project-grid{
  margin-top: 12px;
}

@media (max-width: 920px){
  .project-layout{ grid-template-columns: 1fr; }
  .project-layout .filters{
    position: static;
    max-height: none;
    overflow: visible;
    flex-direction: row;
    flex-wrap: wrap;
    gap:10px;
    margin: 12px 0 12px;
  }
  .project-layout .filter-btn{
    width: auto;
    text-align:center;
    border-radius: 999px;
  }
  .project-layout .project-grid{ margin-top: 0; }
}
/* Breakpoints no longer needed because auto-fit handles it. */

/* Prevent grid items from forcing overflow on narrow viewports (CSS grid min-width:auto behavior). */
.project-grid > *{ min-width: 0; }

details.post{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(6, 9, 22, 0.72);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  padding: 12px 14px;
}
details.post summary{
  cursor:pointer;
  list-style:none;
  display:flex;
  flex-direction:column;
  gap:6px;
}
details.post summary::-webkit-details-marker{ display:none; }
.post-title{ font-weight:800; }
.post-meta{ color:var(--faint); font-size:0.9rem; }
.post-summary{ color:var(--muted); margin-top:6px; }
.post-content{ margin-top: 10px; color: var(--muted); }

.footer{
  border-top: 1px solid var(--border);
  background: rgba(6, 9, 22, 0.55);
  padding: 18px 0 30px;
  color: var(--muted);
  backdrop-filter: blur(10px);
}
.footer-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  flex-wrap:wrap;
}
.footer a{ color: var(--muted); }
.footer a:hover{ color: var(--text); text-decoration: none; }

.reveal{
  opacity:0;
  transform: translateY(12px);
  transition: opacity 650ms ease, transform 650ms ease;
}
.reveal.visible{
  opacity:1;
  transform: translateY(0);
}

.notice{
  margin: 12px 0;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 14px;
  background: rgba(255,255,255,0.05);
  color: var(--muted);
}



/* ----------------------------- */
/* Project detail pages          */
/* ----------------------------- */

.breadcrumbs{
  margin-top: 8px;
  color: var(--faint);
  font-size: 0.92rem;
}

.project-hero-img{
  max-width: 520px;
}

.project-detail{
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 16px;
  margin-top: 14px;
}

.project-detail .project-main,
.project-detail .project-side{
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.project-section-title{
  margin: 0 0 10px;
  font-size: 1.05rem;
}

.kv{ display:flex; flex-direction:column; gap: 8px; }
.kv-row{ display:flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.kv-key{ min-width: 110px; color: var(--faint); font-weight: 900; }
.kv-val{ color: var(--muted); }

.project-detail .stack{
  margin: 10px 0 0;
  color: var(--muted);
}

.project-detail ul{
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.project-detail li{
  margin: 6px 0;
}

.project-detail .glossary{
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.project-detail .glossary dt{
  font-weight: 900;
}

.project-detail .glossary dd{
  margin: 4px 0 0;
  color: var(--muted);
}

@media (max-width: 920px){
  .project-detail{ grid-template-columns: 1fr; }
  .project-hero-img{ max-width: 100%; }
}




/* ----------------------------- */
/* Images (cards, posts, about)  */
/* ----------------------------- */

.card-img{
  width: 100%;
  display:block;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  object-position: center;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  margin: 0 0 12px;
}

.card-img.compact{
  aspect-ratio: 21 / 9;
  margin-bottom: 10px;
}

/* Fit variants for card media */
.card-img.fit-cover{ object-fit: cover; }
.card-img.fit-contain{ object-fit: contain; }


.page-hero.hero-split{
  display:grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items:center;
}

@media (max-width: 860px){
  .page-hero.hero-split{ grid-template-columns: 1fr; }
}

.portrait{
  width: 172px;
  height: 172px;
  border-radius: 999px;
  object-fit: cover;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.04);
  box-shadow: 0 18px 60px rgba(0,0,0,0.35);
}


/* ----------------------------- */
/* Project "front/back" cards    */
/* (toggle content; no 3D flip)  */
/* ----------------------------- */

.flip-card{
  cursor: pointer;
  padding: 0;
  text-align:left;
  background: transparent;
  border: 0;
  box-shadow: none;
  width: 100%;
}

.flip-card:focus{
  outline: 2px solid rgba(120,150,255,0.45);
  outline-offset: 2px;
}

/* Overlap the two faces in a single grid cell.
   NOTE: we intentionally keep both faces in normal flow so the container height
   becomes the max(front, back). This prevents content from spilling outside. */
.flip-inner{
  position: relative;
  width: 100%;
  min-height: 280px;
  display: grid;
  align-items: stretch;
  min-width: 0;
  overflow: hidden;
  border-radius: var(--radius);
}

/* Faces */
.flip-face{
  position: relative;
  inset: auto;
  grid-area: 1 / 1;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(6, 9, 22, 0.72);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  box-shadow: 0 12px 30px rgba(0,0,0,0.20);
  padding: 16px 16px;
  display:flex;
  flex-direction:column;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;

  /* crossfade + subtle slide */
  transition: opacity 220ms ease, transform 220ms ease;
}

.flip-face > *{ min-width: 0; max-width: 100%; }

.flip-face h3,
.flip-face p,
.flip-face .meta,
.flip-face .pill{ overflow-wrap: anywhere; word-break: break-word; }

.flip-face .pill{ white-space: normal; }

/* Default state: show front, hide back */
.flip-front{
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
.flip-back{
  opacity: 0;
  transform: translateX(8px);
  pointer-events: none;
}

/* Toggled state: hide front, show back */
.flip-card.is-flipped .flip-front{
  opacity: 0;
  transform: translateX(-8px);
  pointer-events: none;
}
.flip-card.is-flipped .flip-back{
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.flip-front h3,
.flip-back h3{ margin: 0 0 8px; font-size: 1.05rem; }

.flip-front p,
.flip-back p{ margin: 8px 0 0; color: var(--muted); }

.flip-hint{
  margin-top: auto;
  color: var(--faint);
  font-size: 0.86rem;
  white-space: normal;
  overflow-wrap: anywhere;
}

@media (prefers-reduced-motion: reduce){
  .flip-face{ transition: none; transform: none; }
}
/* ----------------------------- */
/* Blog post thumbnails          */
/* ----------------------------- */

.post-header{
  display:flex;
  gap: 12px;
  align-items:flex-start;
}

.post-img{
  width: 110px;
  height: 72px;
  object-fit: contain;
  object-position: center;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
  flex: 0 0 auto;
}

.post-img.fit-cover{ object-fit: cover; }
.post-img.fit-contain{ object-fit: contain; }


.post-text{ min-width: 0; }

@media (max-width: 560px){
  .post-header{ flex-direction:column; }
  .post-img{ width: 100%; height: auto; aspect-ratio: 16 / 9; }
}


/* -----------------------------
   Modal (Project "Read More")
------------------------------ */
body.modal-open{
  overflow: hidden;
}

.modal-overlay{
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(6px);
  z-index: 9999;
}

.modal-overlay.open{
  display: flex;
}

.modal{
  width: min(920px, 100%);
  max-height: min(82vh, 760px);
  overflow: hidden;
  border-radius: 22px;
  border: 1px solid rgba(255,255,255,0.12);
  background: rgba(15,15,18,0.92);
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
}

.modal-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 18px 18px 10px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
}

.modal-title{
  margin: 0;
  font-size: 1.15rem;
}

.modal-close{
  width: 38px;
  height: 38px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.14);
  background: rgba(255,255,255,0.06);
  color: #fff;
  cursor: pointer;
  font-size: 22px;
  line-height: 1;
  display:flex;
  align-items:center;
  justify-content:center;
}

.modal-close:hover{
  background: rgba(255,255,255,0.10);
}

.modal-body{
  padding: 18px;
  overflow: auto;
  max-height: calc(min(82vh, 760px) - 64px);
}

.modal-body h4{
  margin-top: 18px;
  margin-bottom: 8px;
  font-size: 1.02rem;
}

.modal-subtitle{
  margin-top: 0;
  opacity: 0.85;
}

.modal-list{
  margin: 8px 0 0 18px;
}

.modal-dl{
  margin: 8px 0 0 0;
}

.modal-dl dt{
  font-weight: 800;
  margin-top: 12px;
}

.modal-dl dd{
  margin: 4px 0 0 0;
  opacity: 0.9;
}