.sliding-page { --sliding-blue: #2979ff; }
body.dark-mode .sliding-header h1, body.dark-mode .sliding-header p { color: #f4f4f8; }
body.dark-mode .sliding-header p { color: #aeb2c3; }
.sliding-container { max-width: 690px; }
.sliding-top-label { color: #2979ff; font-size: .7rem; font-weight: 900; letter-spacing: .1em; }
.sliding-heading-icon { width: 70px; height: 70px; margin: 0 auto 12px; border-radius: 19px; display: inline-flex; align-items: center; justify-content: center; background: #dff0ff; color: #2979ff; font-size: 2.7rem; font-weight: 900; }
.sliding-panel { padding: clamp(16px, 4vw, 30px); }
.sliding-difficulties { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 14px; }.sliding-difficulties button { min-width: 0; padding: 10px 5px; border: 1px solid var(--border-color, #e5e7eb); border-radius: 12px; background: var(--secondary-bg, #f3f4f6); color: var(--text-color, #171a2b); font-size: .9rem; font-weight: 900; cursor: pointer; }.sliding-difficulties button.active { border-color: var(--sliding-blue); background: var(--sliding-blue); color: #fff; }.sliding-difficulties small { display: block; margin-top: 3px; font-size: .62rem; font-weight: 700; opacity: .75; }
.sliding-toolbar { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; margin-bottom: 16px; }.sliding-toolbar div { min-width: 0; padding: 10px 4px; border-radius: 12px; background: var(--secondary-bg, #f3f4f6); text-align: center; }.sliding-toolbar span { display: block; color: var(--muted-text, #74798a); font-size: .58rem; font-weight: 900; letter-spacing: .06em; }.sliding-toolbar strong { display: block; margin-top: 3px; color: var(--text-color, #171a2b); font-size: 1.2rem; }
.sliding-board { --tile-size: 3; width: min(520px, 100%); aspect-ratio: 1; display: grid; grid-template-columns: repeat(var(--tile-size), minmax(0, 1fr)); gap: clamp(4px, 1vw, 8px); margin: 0 auto; padding: clamp(5px, 1.4vw, 9px); border-radius: 19px; background: #dbe8fb; box-shadow: inset 0 0 0 1px rgba(41,121,255,.12); }
.sliding-tile { position: relative; min-width: 0; min-height: 0; overflow: hidden; border: 0; border-radius: clamp(7px, 1.5vw, 13px); background-color: #d7eaff; background-image: url("../assets/sliding-house.svg"); background-repeat: no-repeat; background-size: calc(var(--tile-size) * 100%) calc(var(--tile-size) * 100%); background-position: calc(var(--tile-x) * 100% / (var(--tile-size) - 1)) calc(var(--tile-y) * 100% / (var(--tile-size) - 1)); color: #fff; box-shadow: 0 4px 9px rgba(41,121,255,.18); font-size: clamp(1.15rem, 5vw, 2rem); font-weight: 900; cursor: pointer; transition: transform .13s ease, filter .15s ease; touch-action: manipulation; }
.sliding-tile::after { content: attr(data-number); position: absolute; right: clamp(4px, 1vw, 8px); bottom: clamp(4px, 1vw, 8px); min-width: 23px; padding: 3px 5px; border-radius: 7px; background: rgba(29, 40, 72, .82); color: #fff; font-size: clamp(.62rem, 2vw, .82rem); line-height: 1; text-align: center; text-shadow: 0 1px 2px rgba(0,0,0,.35); }
.sliding-tile:hover:not(:disabled) { transform: translateY(-2px); filter: brightness(1.05); }.sliding-tile:active:not(:disabled) { transform: scale(.94); }.sliding-tile.empty { visibility: hidden; pointer-events: none; }.sliding-tile:disabled:not(.empty) { cursor: default; }
.sliding-message { min-height: 24px; margin: 17px 0 15px; color: var(--muted-text, #74798a); text-align: center; font-size: .82rem; font-weight: 800; }.sliding-message.success { color: #218858; }.sliding-panel > .game-actions { margin-top: 18px; }.sliding-tip { margin: 15px 0 0; color: var(--muted-text, #74798a); text-align: center; font-size: .72rem; }
body.dark-mode .sliding-heading-icon { background: #172e4d; color: #84b9ff; } body.dark-mode .sliding-board { background: #253854; } body.dark-mode .sliding-tile { background-color: #344967; color: #a9ceff; }
@media (max-width: 480px) { .sliding-top-label { display: none; } .sliding-difficulties button { font-size: .78rem; } .sliding-difficulties small { font-size: .56rem; } .sliding-board { border-radius: 14px; } }