/* ============================================================
   02 · 积木与顺序 — Scratch
   ============================================================ */

.scene--scratch{
  background:#F6F3EC;
  color:#2A2824;
  --sh-line:rgba(30,24,16,.16);
  --sh-num:#E07A12;
  --sh-dim:#847A6B;
  --sh-title:#17130F;
  --prose-lead:#17130F;
  --prose-em:#D9660A;
  --prose-hl:rgba(255,140,26,.18);
}
.sc-bg{position:absolute;inset:0;overflow:hidden;z-index:0}
.sc-dots{
  position:absolute;inset:0;
  background-image:radial-gradient(rgba(60,50,35,.15) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:radial-gradient(ellipse 78% 70% at 50% 40%,#000,transparent 82%);
  -webkit-mask-image:radial-gradient(ellipse 78% 70% at 50% 40%,#000,transparent 82%);
  opacity:.55;
}
.sc-blob{
  position:absolute;width:52vw;height:52vw;right:-16vw;top:-14vw;
  background:radial-gradient(circle,rgba(255,140,26,.14),transparent 66%);
  filter:blur(30px);
  animation:scDrift 26s ease-in-out infinite alternate;
}
@keyframes scDrift{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-3%,3%,0)}
}
.sc-blob--2{
  left:-20vw;top:38%;width:44vw;height:44vw;
  background:radial-gradient(circle,rgba(76,151,255,.10),transparent 68%);
}
.scene--scratch::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:120px;z-index:0;
  background:linear-gradient(180deg,transparent,rgba(232,226,214,.7));
  pointer-events:none;
}

.sc-layout{
  display:grid;
  grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);
  gap:clamp(32px,4.6vw,64px);
  margin-top:clamp(44px,6.5vh,72px);
  align-items:start;
}
.sc-prose{max-width:30em;padding-top:4px}
.sc-note{
  margin-top:36px;
  padding:16px 18px 16px 16px;
  display:flex;gap:12px;align-items:flex-start;
  background:rgba(255,255,255,.6);
  border:1px solid rgba(40,30,20,.10);
  border-left:3px solid #FF8C1A;
  border-radius:2px;
}
.sc-note-ico{
  font-size:14px;line-height:1.4;color:#FF8C1A;
}
.sc-note p{font-size:12.5px;line-height:1.85;color:#5F574B;margin:0}

/* ---------- 编辑器外壳 ---------- */
.sc-ide{
  background:#FFFFFF;
  border:1px solid #E2DCD1;
  border-radius:12px;
  box-shadow:
    0 40px 80px -40px rgba(60,48,30,.35),
    0 2px 6px rgba(60,48,30,.06);
  overflow:hidden;
  font-family:var(--f-sans);
}
.sc-top{
  height:46px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px;
  border-bottom:1px solid #EEE9E0;
  background:#fff;
}
.sc-logo{
  display:flex;align-items:center;gap:7px;
  font-size:13px;font-weight:700;letter-spacing:-.01em;color:#4C3F32;
}
.sc-logo i{
  width:24px;height:24px;border-radius:50%;
  background:#FFF3E2 url("../images/scratch-cat.png") center/150% no-repeat;
  border:1px solid #F0DEC4;
  display:block;
  overflow:hidden;
}
.sc-menu{display:flex;gap:14px;font-size:11px;color:#5F574B}
.sc-menu span{opacity:.85;cursor:default}
.sc-saved{
  margin-left:auto;display:flex;align-items:center;gap:6px;
  font-family:var(--f-mono);font-size:8px;letter-spacing:.1em;color:#9A9082;
  text-transform:uppercase;
}
.sc-saved i{width:5px;height:5px;border-radius:50%;background:#9BD05C}

.sc-main{
  display:grid;
  grid-template-columns:132px minmax(0,1fr) 218px;
  height:408px;
}
.sc-palette{
  border-right:1px solid #EFEAE1;
  background:#FAF9F6;
  padding:9px 8px;
  overflow:hidden;
}
.sc-cats{display:flex;flex-direction:column;gap:2px;margin-bottom:8px}
.sc-cats span{
  font-size:10px;color:#57534B;
  padding:3px 7px;border-radius:4px;
  display:flex;align-items:center;gap:6px;
}
.sc-cats span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c);
}
.sc-cats span.on{background:#FFF0DC;color:#3B3025;font-weight:500}
.sc-palette-blocks{display:flex;flex-direction:column;gap:5px;opacity:.82}
.sc-pb{
  font-size:8.5px;line-height:1.25;
  color:#fff;padding:5px 7px;border-radius:4px;
  background:var(--c);
  box-shadow:inset 0 -1.5px rgba(0,0,0,.14);
  width:fit-content;max-width:100%;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

.sc-canvas{
  position:relative;
  background-color:#FCFBF8;
  background-image:radial-gradient(rgba(90,80,65,.16) 1px,transparent 1px);
  background-size:16px 16px;
  padding:18px 14px;
  overflow:hidden;
}
.sc-script{position:relative;z-index:1}
.sc-block{
  --c:#4C97FF;
  position:relative;
  width:fit-content;max-width:100%;
  font-size:11.5px;font-weight:500;line-height:1.35;
  color:#fff;text-shadow:0 1px 0 rgba(0,0,0,.22);
  padding:6px 10px;
  margin-bottom:4px;
  border-radius:5px;
  background:linear-gradient(180deg,color-mix(in srgb,var(--c) 92%,#fff),var(--c));
  box-shadow:inset 0 -2px rgba(0,0,0,.16),0 1px 0 rgba(0,0,0,.06);
  opacity:0;transform:translateY(-7px);
  white-space:nowrap;
}
.sc-block::before{
  content:"";position:absolute;left:10px;top:0;
  width:13px;height:4px;border-radius:0 0 3px 3px;
  background:rgba(0,0,0,.16);
}
.sc-ide.in .sc-block{animation:blockDrop .55s var(--ease) forwards}
.sc-ide.in .sc-block[data-step="1"]{animation-delay:.15s}
.sc-ide.in .sc-block[data-step="2"]{animation-delay:.3s}
.sc-ide.in .sc-block[data-step="3"]{animation-delay:.45s}
.sc-ide.in .sc-block[data-step="4"]{animation-delay:.6s}
.sc-ide.in .sc-block[data-step="5"]{animation-delay:.75s}
@keyframes blockDrop{
  from{opacity:0;transform:translateY(-7px)}
  to{opacity:1;transform:none}
}
.sc-evt{--c:#FFBF00}
.sc-ctl{--c:#FFAB19}
.sc-motion{--c:#4C97FF}
.sc-look{--c:#9966FF}
.sc-block[data-step="3"],
.sc-block[data-step="4"],
.sc-block[data-step="5"]{margin-left:16px}
.sc-flag-ico{color:#fff;font-size:11px}
.sc-num{
  background:rgba(255,255,255,.9);color:#3B3B3B;
  padding:0 5px;border-radius:8px;font-size:9px;
  display:inline-block;line-height:1.5;text-shadow:none;
}
.sc-str{
  background:rgba(255,255,255,.9);color:#8A3FC4;
  padding:0 5px;border-radius:7px;text-shadow:none;
}
.sc-hint{
  position:absolute;left:15px;bottom:12px;
  font-family:var(--f-mono);font-size:7.5px;letter-spacing:.1em;
  color:#A79C8C;
}
.sc-block.is-run{
  outline:2px solid #fff;
  outline-offset:1px;
  filter:brightness(1.1);
  box-shadow:0 0 0 4px rgba(255,200,80,.35),inset 0 -2px rgba(0,0,0,.16);
}

/* ---------- 舞台 ---------- */
.sc-stagecol{border-left:1px solid #EFEAE1;background:#fff;padding:9px 9px 0;display:flex;flex-direction:column}
.sc-stage{
  position:relative;
  aspect-ratio:4 / 3;
  background:#fff;
  border:1px solid #E6DFD4;
  border-radius:4px;
  overflow:hidden;
  flex:none;
}
.sc-stage::after{
  content:"";position:absolute;inset:0;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.7);
  pointer-events:none;
}
.sc-stage-top{
  position:absolute;left:0;right:0;top:0;z-index:3;
  display:flex;justify-content:space-between;padding:5px 6px;
}
.sc-flag-btn,.sc-stop-btn{
  width:20px;height:20px;border-radius:3px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.8);
  border:1px solid rgba(0,0,0,.06);
  transition:background .2s,transform .2s;
}
.sc-flag-btn span{color:#4CBF56;font-size:12px;line-height:1}
.sc-flag-btn:hover{background:#EAF8EA;transform:scale(1.06)}
.sc-stop-btn i{width:8px;height:8px;background:#E2503F;border-radius:1px}
.sc-stop-btn:hover{background:#FDECEA}

.sc-sprite{
  position:absolute;left:8%;bottom:8%;width:112px;
  transform:translateX(0);
  transition:transform 2.6s cubic-bezier(.4,0,.55,1);
  z-index:2;
}
.sc-sprite img{
  width:100%;height:auto;
  filter:drop-shadow(0 6px 6px rgba(0,0,0,.10));
  transform-origin:50% 100%;
}
.sc-sprite.is-walking img{animation:catBob .36s steps(2) infinite}
@keyframes catBob{
  0%,100%{transform:translateY(0) rotate(-1deg)}
  50%{transform:translateY(-5px) rotate(1.5deg)}
}
.sc-bubble{
  position:absolute;left:52%;bottom:88%;
  transform:translateX(0) scale(.86);
  transform-origin:0 100%;
  background:#fff;
  border:1px solid #D9D2C6;
  border-radius:9px;
  padding:6px 9px;
  font-family:var(--f-sans);font-size:9.5px;color:#4A4238;
  white-space:nowrap;
  box-shadow:0 4px 12px rgba(0,0,0,.08);
  opacity:0;
  transition:opacity .2s,transform .3s var(--ease);
}
.sc-bubble::after{
  content:"";position:absolute;left:12px;bottom:-5px;
  width:8px;height:8px;background:#fff;
  border-right:1px solid #D9D2C6;border-bottom:1px solid #D9D2C6;
  transform:rotate(45deg);
}
.sc-bubble.is-on{opacity:1;transform:translateX(0) scale(1)}

.sc-spritebar{
  display:flex;align-items:center;gap:6px;
  padding:8px 2px;
  margin-top:auto;
}
.sc-sprite-chip{
  display:flex;align-items:center;gap:5px;
  padding:3px 7px 3px 3px;border-radius:4px;
  background:#EAF3FF;border:1px solid #9CC4F5;
  font-size:8.5px;color:#3C5A7A;
}
.sc-sprite-chip img{width:24px;height:18px;object-fit:contain}
.sc-sprite-add{
  width:20px;height:20px;border-radius:50%;
  display:grid;place-items:center;
  background:#8E6BE0;color:#fff;font-size:12px;line-height:1;
}
.sc-sprite-meta{
  margin-left:auto;font-family:var(--f-mono);font-size:7px;
  letter-spacing:.08em;color:#A79C8C;
}

@media (max-width:1100px){
  .sc-layout{grid-template-columns:1fr;gap:40px}
  .sc-prose{max-width:38em}
  .sc-main{grid-template-columns:140px minmax(0,1fr) 240px;height:430px}
}
@media (max-width:820px){
  .sc-main{grid-template-columns:minmax(0,1fr) 200px;height:auto}
  .sc-palette{display:none}
  .sc-canvas{min-height:300px}
  .sc-stagecol{border-left:1px solid #EFEAE1}
}
@media (max-width:620px){
  .sc-main{grid-template-columns:1fr}
  .sc-canvas{min-height:280px;padding:14px 12px}
  .sc-stagecol{border-left:0;border-top:1px solid #EFEAE1;padding:10px}
  .sc-stage{aspect-ratio:4/3}
  .sc-sprite{width:128px}
  .sc-block{font-size:10px}
  .sc-flag-btn,.sc-stop-btn{width:26px;height:26px}
  .sc-flag-btn span{font-size:15px}
  .sc-menu{display:none}
  .sc-top{gap:10px}
}