.exercise-workspace {
  height: 100vh;
  min-width: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  background: #f2f3f1;
}

.exercise-head {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 12px clamp(20px, 2.5vw, 38px);
  border-bottom: 1px solid rgba(15, 23, 42, .09);
  background: rgba(255, 255, 255, .97);
}

.exercise-head h1 { margin: 0; font-size: clamp(1.7rem, 2.45vw, 2.4rem); letter-spacing: -.045em; }
.exercise-actions { display: flex; align-items: center; gap: 9px; }
.exercise-actions > span { display: grid; place-items: center; min-width: 72px; min-height: 42px; padding: 8px 12px; border-radius: 3px; background: #e5ece9; color: #263b36; font-size: .78rem; font-weight: 900; }
.exercise-actions button { min-height: 42px !important; padding: 9px 15px !important; border: 0 !important; border-radius: 3px !important; background: #202124 !important; color: #fff !important; font-weight: 850; }
.exercise-actions [data-check] { background: #315f55 !important; }
.exercise-actions output:not(:empty) { max-width: 260px; padding: 8px 12px; border-radius: 3px; background: #f0ebe1; color: #66583d; font-size: .72rem; font-weight: 850; text-align: center; }

.evolution-content { min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); overflow: hidden; }
.evolution-tabs { display: flex; gap: 8px; padding: 10px 16px; border-bottom: 1px solid rgba(15, 23, 42, .08); background: #fff; }
.evolution-tabs button { min-height: 40px !important; display: flex; align-items: center; gap: 8px; padding: 8px 15px !important; border: 1px solid #d8ddda !important; border-radius: 3px !important; background: #f7f8f7 !important; color: #4d5754 !important; box-shadow: none !important; font-weight: 850; }
.evolution-tabs button.is-active { border-color: #536d66 !important; background: #e9efed !important; color: #253b35 !important; }
.evolution-tabs button span { filter: grayscale(.7); font-size: 1.02rem; }

.evolution-sorter { min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr); overflow: hidden; }
.evolution-sorter-head { min-height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 12px clamp(18px, 2vw, 30px); border-bottom: 1px solid #dfe3e0; background: #ecefec; color: #28332f; }
.evolution-sorter-head div { display: grid; gap: 2px; }
.evolution-sorter-head strong { font-size: .9rem; }
.evolution-sorter-head small { color: #69736f; font-size: .68rem; }
.evolution-sorter-head > span { color: #4b5954; font-size: .7rem; font-weight: 850; letter-spacing: .02em; }

.evolution-strip-scroll { min-height: 0; overflow-y: auto; overflow-x: hidden; padding: 22px 14px 34px; background: linear-gradient(rgba(40, 54, 49, .025) 1px, transparent 1px), linear-gradient(90deg, rgba(40, 54, 49, .025) 1px, transparent 1px), #f7f8f6; background-size: 30px 30px; scrollbar-color: #6f7f79 #dfe5e2; }
.evolution-track { display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); gap: 9px; width: 100%; min-height: 100%; align-content: start; }
.evolution-item { position: relative; min-width: 0; display: grid; grid-template-rows: 210px auto; gap: 9px; transition: transform .16s ease; }
.evolution-item:not(:last-child)::after { content: "›"; position: absolute; z-index: 3; top: 86px; right: -8px; display: grid; place-items: center; width: 15px; height: 24px; background: #f7f8f6; color: #52615c; font-size: 1.3rem; font-weight: 900; }
.evolution-item.is-dragging { opacity: .35; transform: scale(.97); }
.evolution-item.is-over .evolution-tile { outline: 3px solid rgba(49, 95, 85, .22); transform: translateY(-3px); }
.evolution-item.is-selected .evolution-tile { outline: 3px solid rgba(49, 95, 85, .28); transform: translateY(-4px); }

.evolution-tile { position: relative; min-width: 0; display: grid; grid-template-rows: auto 1fr; overflow: hidden; border: 1px solid #c7ceca; border-radius: 2px; background: #fff; box-shadow: 0 7px 18px rgba(29, 42, 37, .07); cursor: grab; transition: .16s ease; }
.evolution-tile:active { cursor: grabbing; }
.evolution-tile-head { min-height: 54px; display: grid; grid-template-columns: 25px minmax(0, 1fr); align-items: center; gap: 6px; padding: 8px; border-bottom: 1px solid #d9dfdc; background: #e5eae7; }
.evolution-position { display: grid; place-items: center; width: 25px; height: 25px; border-radius: 2px; background: #34473f; color: #fff; font-size: .64rem; font-weight: 950; }
.evolution-tile-head strong { color: #202a26; font-size: clamp(.64rem, .74vw, .75rem); line-height: 1.06; overflow-wrap: anywhere; }
.evolution-visual { min-height: 0; display: grid; place-items: center; background: radial-gradient(circle at 50% 45%, #fff 0, #eef1ef 75%); }
.evolution-visual span { display: grid; place-items: center; width: 100%; height: 100%; filter: grayscale(.28) saturate(.86); font-size: clamp(3.2rem, 5.1vw, 5.2rem); line-height: 1; }

.evolution-improvement { display: grid; gap: 6px; }
.evolution-improvement label { min-height: 24px; color: #45504c; font-size: .64rem; font-weight: 850; line-height: 1.1; }
body.site-subpage .evolution-improvement select { width: 100%; min-height: 43px; padding: 6px 22px 6px 7px; border: 1px solid #ccd3cf; border-radius: 2px !important; background: #fff; color: #26312d; font-size: .62rem; }
.evolution-item.is-order-correct .evolution-tile { border-color: #5b8979; box-shadow: 0 0 0 3px rgba(91, 137, 121, .12), 0 10px 24px rgba(29, 42, 37, .08); }
.evolution-item.is-order-wrong .evolution-tile { border-color: #a98468; box-shadow: 0 0 0 3px rgba(169, 132, 104, .12), 0 10px 24px rgba(29, 42, 37, .08); }
.evolution-improvement select.is-correct { border-color: #5b8979; background: #eef5f1; }
.evolution-improvement select.is-wrong { border-color: #a98468; background: #f6f0eb; }
.evolution-drag-preview { position: fixed; z-index: 99999; top: -300px; left: -300px; width: 150px; display: grid; justify-items: center; gap: 6px; color: #24312c; text-align: center; pointer-events: none; }
.evolution-drag-preview > span { display: grid; place-items: center; width: 64px; height: 64px; border: 1px solid #d8dfdb; border-radius: 19px; background: #fff; box-shadow: 0 10px 24px rgba(35, 49, 43, .15); filter: grayscale(.45); font-size: 2rem; }
.evolution-drag-preview strong { font-size: .72rem; }

@media (max-width: 1050px) {
  .exercise-actions output { display: none; }
  .evolution-strip-scroll { overflow-x: auto; }
  .evolution-track { grid-template-columns: repeat(9, 132px); gap: 14px; width: max-content; }
}

@media (max-width: 900px) {
  .exercise-head { padding: 56px 14px 9px; }
  .exercise-head h1 { font-size: 1.55rem; }
  .exercise-actions { gap: 6px; }
  .evolution-tabs { overflow-x: auto; }
  .evolution-sorter-head { padding-inline: 16px; }
}

@media (max-width: 600px) {
  .exercise-head { display: block; }
  .exercise-actions { margin-top: 10px; }
  .evolution-sorter-head > span { display: none; }
  .evolution-strip-scroll { padding-inline: 15px; }
}