/* ───────────────────────────────────────────────────────────────────
   THE LIBRARY · index page styling
   Big card-per-essay, hero animation as centerpiece, progress tracking.
   Bouncy smooth scroll, subtle in-card motion.
   ─────────────────────────────────────────────────────────────────── */

.library-page{
  scroll-behavior: smooth;
}
html{ scroll-behavior: smooth; }

/* ─── HERO ─────────────────────────────────────────────────────── */
.lib-hero{
  padding: 160px 0 80px;
  display: grid;
  grid-template-columns: minmax(0,1fr) 360px;
  gap: 80px;
  align-items: end;
}
@media (max-width: 1000px){
  .lib-hero{ grid-template-columns: 1fr; gap: 48px; }
}
.lib-hero__head{ max-width: 920px; }
.lib-hero__title{
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(48px, 7.2vw, 104px);
  letter-spacing: -0.024em;
  line-height: 0.96;
  margin-top: 28px;
  color: var(--ink);
}
.lib-hero__line{ display: block; }
.lib-hero__deck{
  margin-top: 32px;
  font-family: var(--font-serif); font-style: italic; font-weight: 500;
  font-size: clamp(19px, 1.6vw, 24px);
  line-height: 1.5;
  color: var(--silver);
  max-width: 70ch;
  text-wrap: pretty;
}
.lib-hero__deck em{ color: #f0d8b0; font-style: italic; }

/* ─── PROGRESS PANEL ───────────────────────────────────────────── */
.lib-progress{
  background: linear-gradient(160deg, rgba(20,22,60,0.65) 0%, rgba(2,3,13,0.85) 100%);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-5, 18px);
  padding: 28px 28px 24px;
  box-shadow: 0 30px 80px rgba(2,3,13,0.5);
  position: relative; overflow: hidden;
}
.lib-progress::before{
  content:""; position: absolute; inset: 0;
  background: radial-gradient(circle at 100% 0%, rgba(20,224,255,0.12), transparent 60%);
  pointer-events: none;
}
.lib-progress__hd{
  display: flex; justify-content: space-between; align-items: baseline;
  margin-bottom: 14px;
}
.lib-progress__lbl{
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dust);
}
.lib-progress__pct{
  font-family: var(--font-display); font-weight: 800;
  font-size: 56px; line-height: 1;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  letter-spacing: -0.02em;
}
.lib-progress__pctSm{
  font-size: 22px; opacity: 0.6; margin-left: 4px;
  -webkit-text-fill-color: var(--moon);
}
.lib-progress__bar{
  height: 6px; background: rgba(255,255,255,0.06);
  border-radius: 100px; overflow: hidden; margin: 6px 0 18px;
}
.lib-progress__fill{
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--violet), var(--magenta));
  border-radius: 100px;
  transition: width 600ms cubic-bezier(.22,.9,.3,1.1);
  box-shadow: 0 0 18px rgba(20,224,255,0.5);
}
.lib-progress__stats{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--silver);
  padding-top: 14px; border-top: 1px solid var(--line);
}
.lib-progress__stats > div{ display: flex; flex-direction: column; gap: 4px; }
.lib-progress__sNum{
  font-family: var(--font-display); font-weight: 700; font-size: 22px;
  color: var(--ink); letter-spacing: -0.01em;
  -webkit-text-stroke: 0;
}
.lib-progress__sUnit{ font-size: 10px; color: var(--dust); margin-left: 2px; }
.lib-progress__hint{
  margin-top: 16px;
  font-family: var(--font-serif); font-style: italic;
  font-size: 13px; color: var(--moon); line-height: 1.5;
}
.lib-progress__hint a{ color: var(--cyan); border-bottom: 1px solid rgba(20,224,255,0.4); }
.lib-progress__hint a:hover{ color: var(--ink); }
.lib-progress[data-empty="true"] .lib-progress__pct{
  background: linear-gradient(135deg, var(--dust), var(--silver));
  -webkit-background-clip: text; background-clip: text;
}

/* ─── FILTER ROW ───────────────────────────────────────────────── */
.lib-filterRow{
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 32px;
  margin: 0 auto;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap; gap: 16px;
  position: sticky; top: 64px; z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(2,3,13,0.7);
}
.lib-filter, .lib-sortBy{
  display: flex; gap: 8px; align-items: center;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
}
.lib-sortBy > span{ color: var(--dust); margin-right: 4px; }
.lib-filter button, .lib-sortBy button{
  padding: 8px 16px; border-radius: 100px;
  background: transparent; color: var(--silver); border: 1px solid var(--line-strong);
  font: inherit; cursor: pointer;
  transition: all 220ms cubic-bezier(.22,.9,.3,1.1);
}
.lib-filter button:hover, .lib-sortBy button:hover{
  color: var(--ink); border-color: var(--cyan); transform: translateY(-1px);
}
.lib-filter button[data-active="true"]{ background: var(--cyan); color: var(--void); border-color: var(--cyan); }
.lib-sortBy button[data-active="true"]{ background: rgba(20,224,255,0.14); color: var(--cyan); border-color: var(--cyan); }

/* ─── CARDS GRID ───────────────────────────────────────────────── */
.lib-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  padding: 48px 32px 80px;
  margin: 0 auto;
}
@media (max-width: 880px){
  .lib-grid{ grid-template-columns: 1fr; gap: 24px; padding: 32px 16px 60px; }
}

.lib-card{
  background: linear-gradient(165deg, rgba(20,22,60,0.7) 0%, rgba(2,3,13,0.9) 100%);
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  overflow: hidden;
  position: relative;
  transition: transform 320ms cubic-bezier(.22,.9,.3,1.1), border-color 320ms, box-shadow 320ms;
  cursor: pointer;
  box-shadow: 0 20px 60px rgba(2,3,13,0.4);
}
.lib-card::after{
  content:""; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(20,224,255,0.08), transparent 70%);
  opacity: 0; transition: opacity 320ms;
  pointer-events: none;
}
.lib-card:hover{
  transform: translateY(-6px);
  border-color: var(--cyan);
  box-shadow: 0 40px 100px rgba(20,224,255,0.18), 0 0 0 1px rgba(20,224,255,0.2);
}
.lib-card:hover::after{ opacity: 1; }
.lib-card:hover .lib-card__title{ color: var(--cyan); }
.lib-card:hover .lib-card__open{ background: var(--cyan); color: var(--void); }

.lib-card__hero{
  position: relative;
  aspect-ratio: 16 / 9;
  background: #02030d;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.lib-card__hero canvas{
  position: absolute; inset: 0;
  width: 100% !important; height: 100% !important;
}
.lib-card__hero::after{
  content:""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(2,3,13,0.4) 100%);
  pointer-events: none;
}

.lib-card__body{
  padding: 28px 32px 24px;
  display: flex; flex-direction: column; gap: 14px;
}
.lib-card__top{
  display: flex; gap: 14px; align-items: center; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dust);
}
.lib-card__num{ color: var(--silver); }
.lib-card__cat{
  padding: 3px 10px; border-radius: 100px;
  border: 1px solid currentColor;
}
.lib-card__cat--cy{ color: var(--cyan); }
.lib-card__cat--vi{ color: var(--violet); }
.lib-card__cat--am{ color: var(--amber); }
.lib-card__cat--mg{ color: var(--magenta); }
.lib-card__time{ margin-left: auto; }

.lib-card__title{
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(26px, 2.6vw, 36px);
  letter-spacing: -0.022em; line-height: 1.05;
  color: var(--ink); text-wrap: balance;
  transition: color 240ms;
}
.lib-card__sub{
  font-family: var(--font-serif); font-style: italic;
  font-size: 16px; line-height: 1.45;
  color: var(--moon);
  text-wrap: pretty;
  max-width: 62ch;
}

.lib-card__foot{
  display: flex; align-items: center; gap: 18px;
  margin-top: 6px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}
.lib-card__progress{
  flex: 1;
  height: 4px; background: rgba(255,255,255,0.06);
  border-radius: 100px; overflow: hidden;
  position: relative;
}
.lib-card__progressFill{
  position: absolute; left:0; top:0; bottom: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  width: 0%;
  transition: width 600ms cubic-bezier(.22,.9,.3,1.1);
}
.lib-card__open{
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  padding: 8px 16px;
  border-radius: 100px;
  background: rgba(20,224,255,0.08);
  color: var(--cyan);
  border: 1px solid rgba(20,224,255,0.3);
  transition: all 220ms;
  white-space: nowrap;
}
.lib-card[data-progress]:not([data-progress="0"]) .lib-card__open::before{
  content: 'Resume · ';
}

/* hide redundant old toc styles in case they leak through */
.blog-toc{ display: none !important; }

/* article hero (used inside individual essays) */
.article__hero{
  margin: 48px 0 60px;
  border-radius: var(--r-5, 18px);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: linear-gradient(165deg, rgba(20,22,60,0.6) 0%, rgba(2,3,13,0.9) 100%);
  box-shadow: 0 40px 120px rgba(2,3,13,0.6);
  aspect-ratio: 16/9;
  position: relative;
}
.article__hero canvas{
  position: absolute; inset:0;
  width:100% !important; height:100% !important;
}