/* ═══════════════════════════════════════
   SCROLL CONTAINER
═══════════════════════════════════════ */
.cs-outer { height: 700vh; position: relative; }

.cs-sticky {
  position: sticky; top: 0; height: 100vh;
  display: grid; grid-template-columns: 1fr 1fr;
  background: #0D0D0D; overflow: hidden;
}

.cs-progress {
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: transparent; z-index: 60;
}
.cs-progress-fill {
  height: 100%; background: var(--ac); width: 0%;
  transition: width .04s linear;
}

/* ═══════════════════════════════════════
   LEFT — Editor
═══════════════════════════════════════ */
.cs-editor {
  display: flex; flex-direction: column;
  border-right: 1px solid rgba(255,255,255,.06);
  overflow: hidden;
}
.cs-editor-bar {
  height: 40px; background: #181818;
  display: flex; align-items: center;
  padding: 0 14px; gap: 7px; flex-shrink: 0;
  border-bottom: 1px solid rgba(255,255,255,.05);
}
.cs-dot { width: 11px; height: 11px; border-radius: 50%; }
.cs-tab {
  margin-left: 14px; display: flex; align-items: center; gap: 6px;
  font-family: var(--f-mono); font-size: .57rem; color: #777; letter-spacing: .04em;
}
.cs-tab-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--ac); }

.cs-editor-body { display: flex; flex: 1; overflow: hidden; }

.cs-nums {
  padding: 1.4rem 0; background: #0D0D0D;
  min-width: 48px; text-align: right; user-select: none; flex-shrink: 0;
}
.cs-nums span {
  display: block; font-family: var(--f-mono); font-size: .65rem;
  color: #222; line-height: 1.72; padding: 0 12px 0 6px; transition: color .2s;
}
.cs-nums span.nact { color: #4a4a4a; }

.cs-code {
  padding: 1.4rem 1.4rem; flex: 1;
  overflow-y: auto; overflow-x: hidden; scrollbar-width: none;
}
.cs-code::-webkit-scrollbar { display: none; }

/* Lines */
.csl {
  display: block; font-family: var(--f-mono); font-size: .7rem;
  line-height: 1.72; white-space: pre; min-height: 1.72em;
  opacity: 0; transform: translateX(-8px);
  transition: opacity .18s ease, transform .18s ease, background .15s;
}
.csl.vis { opacity: 1; transform: translateX(0); }
.csl.act { background: rgba(255,255,255,.03); border-radius: 2px; }

.csl-proj {
  cursor: pointer;
  padding-left: 4px; border-left: 2px solid transparent;
  transition: opacity .18s, transform .18s, border-color .2s, background .15s;
}
.csl-proj:hover { background: rgba(255,255,255,.06) !important; }
.csl-proj.selected { border-left-color: var(--ac); background: rgba(255,255,255,.04) !important; }

/* Syntax */
.ck   { color: #C792EA; }
.cs2  { color: #C3E88D; }
.cc   { color: #3d5a68; font-style: italic; }
.cp   { color: #82AAFF; }
.cn   { color: #FFCB6B; }
.cf   { color: #89DDFF; }
.ct   { color: #F78C6C; }
.ccat { color: #34D399; font-weight: 700; }

.cs-cursor {
  display: inline-block; width: 2px; height: .82em;
  background: var(--ac);
  animation: blink .9s step-end infinite;
  vertical-align: text-bottom; margin-left: 1px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* ═══════════════════════════════════════
   RIGHT — Panel (desktop)
═══════════════════════════════════════ */
.cs-panel {
  display: flex; flex-direction: column;
  background: #111; overflow: hidden; position: relative;
}
.cs-panel-bar {
  height: 40px; background: #181818;
  display: flex; align-items: center; padding: 0 16px;
  border-bottom: 1px solid rgba(255,255,255,.05); flex-shrink: 0;
  font-family: var(--f-mono); font-size: .55rem; color: #444; letter-spacing: .1em;
  text-transform: uppercase;
  gap: .6rem;
}
.cs-panel-bar span { margin-left: auto; color: #333; }

/* Category pills */
.cs-panel-default {
  flex: 1; display: grid; grid-template-columns: 1fr 1fr;
  padding: 2rem; gap: 1rem; align-content: center;
}
.cs-cat-pill {
  border: 1px solid rgba(255,255,255,.07);
  padding: 1.2rem; cursor: default;
  opacity: 0; transform: translateY(14px);
  transition: opacity .35s cubic-bezier(.2,.8,.2,1), transform .35s cubic-bezier(.2,.8,.2,1);
}
.cs-cat-pill.vis { opacity: 1; transform: translateY(0); }
.cs-cat-color { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: .4rem; vertical-align: middle; }
.cs-cat-name { font-family: var(--f-mono); font-size: .55rem; letter-spacing: .14em; text-transform: uppercase; color: #888; }
.cs-cat-count { font-family: var(--f-display); font-size: 2rem; line-height: 1; color: #2a2a2a; margin-top: .3rem; }
.cs-cat-label { font-family: var(--f-mono); font-size: .48rem; letter-spacing: .1em; text-transform: uppercase; color: #2a2a2a; }
.cs-panel-hint {
  grid-column: 1/-1; font-family: var(--f-mono); font-size: .48rem;
  color: #222; letter-spacing: .12em; text-transform: uppercase; padding-top: .5rem;
}

/* Detail view */
.cs-panel-detail {
  flex: 1; display: none; flex-direction: column; overflow: hidden;
}
.cs-panel-detail.active { display: flex; }

.cs-detail-hero {
  height: 190px; flex-shrink: 0;
  display: flex; align-items: flex-end; padding: 1.4rem;
  position: relative; overflow: hidden;
}
.cs-detail-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.82) 0%, transparent 100%);
}
.cs-detail-tag {
  font-family: var(--f-mono); font-size: .52rem;
  letter-spacing: .2em; text-transform: uppercase;
  background: var(--ac); color: #fff;
  padding: .15rem .5rem; margin-bottom: .4rem;
  display: block; position: relative; z-index: 2; width: fit-content;
}
[data-theme=dark] .cs-detail-tag { color: #0A0A0A; font-weight: 700; }
.cs-detail-name {
  font-family: var(--f-display); font-size: 2.6rem; line-height: .88;
  color: #fff; position: relative; z-index: 2;
}
.cs-detail-close {
  position: absolute; top: 12px; right: 12px;
  background: rgba(0,0,0,.55); border: 1px solid rgba(255,255,255,.12);
  color: #fff; font-family: var(--f-mono); font-size: .52rem;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .28rem .65rem; border-radius: 2px; cursor: pointer; z-index: 10;
  transition: background .2s;
}
.cs-detail-close:hover { background: rgba(255,255,255,.12); }

.cs-detail-body {
  flex: 1; padding: 1.4rem; overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: #222 transparent;
}
.cs-detail-meta {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: .8rem; margin-bottom: 1.2rem;
  padding-bottom: 1rem; border-bottom: 1px solid #1a1a1a;
}
.cs-meta-label { font-family: var(--f-mono); font-size: .47rem; letter-spacing: .18em; text-transform: uppercase; color: #3a3a3a; margin-bottom: .2rem; }
.cs-meta-val   { font-family: var(--f-mono); font-size: .62rem; color: #888; }
.cs-detail-desc {
  font-family: var(--f-body); font-style: italic;
  font-size: .92rem; color: #555; line-height: 1.55; margin-bottom: 1.4rem;
}
.cs-cta-row { display: flex; flex-wrap: wrap; gap: .5rem; }
.cs-cta {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--f-mono); font-size: .55rem;
  letter-spacing: .12em; text-transform: uppercase;
  text-decoration: none; padding: .6rem 1.2rem; border-radius: 2px;
  transition: opacity .2s, transform .15s;
}
.cs-cta:hover { opacity: .82; transform: translateY(-1px); }
.cs-cta.primary   { background: var(--ac); color: #fff; }
[data-theme=dark] .cs-cta.primary { color: #0A0A0A; font-weight: 700; }
.cs-cta.secondary { background: transparent; border: 1px solid #252525; color: #555; }
.cs-cta.secondary:hover { border-color: #444; color: #888; }
.cs-cta-icon { font-size: .8rem; }

/* Scroll hint */
.cs-hint {
  position: absolute; bottom: 1.6rem; right: 1.6rem;
  font-family: var(--f-mono); font-size: .48rem;
  letter-spacing: .2em; text-transform: uppercase; color: #252525;
  display: flex; flex-direction: column; align-items: center; gap: .35rem;
  pointer-events: none;
  animation: hfade 2.5s ease-in-out infinite;
  transition: opacity .4s;
}
.cs-hint-arr { animation: hb .7s ease-in-out infinite alternate; }
@keyframes hfade { 0%,100%{opacity:.3} 50%{opacity:.7} }
@keyframes hb    { from{transform:translateY(0)} to{transform:translateY(3px)} }

/* ═══════════════════════════════════════
   MOBILE — stack editor + panel vertically
═══════════════════════════════════════ */
@media (max-width: 900px) {
  /* Disable sticky scroll-driven on mobile, just show both stacked */
  .cs-outer { height: auto; }
  .cs-sticky {
    position: static;
    height: auto;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
  }
  .cs-editor {
    border-right: none;
    border-bottom: 1px solid rgba(255,255,255,.06);
    max-height: 55vh;
    overflow: hidden;
  }
  .cs-code {
    overflow-y: scroll;
    /* On mobile show all lines at once */
  }
  /* On mobile reveal all lines immediately */
  .csl { opacity: 1 !important; transform: none !important; }

  .cs-panel { display: none; }
  .cs-editor { border-bottom: none; max-height: none; }
  .csl-proj { padding: .15rem .3rem .15rem 6px; }
  .cs-hint { display: none; }
  .cs-progress { display: none; }
}