.strata-page{background:radial-gradient(ellipse at 50% 35%,#203f4e,#081620 72%);color:#e9f5ef}.strata-page main{max-width:1300px}.strata-heading{text-align:center}.strata-heading h1{font-size:clamp(34px,5vw,55px);letter-spacing:-2px;margin:5px 0}.strata-heading p{color:#aac5c5;margin:0 0 15px}.strata-layout{display:grid;grid-template-columns:minmax(170px,1fr) minmax(240px,390px) minmax(170px,1fr);gap:clamp(15px,3vw,38px);align-items:start}.strata-side{padding:24px 20px;border:1px solid #789a9840;border-radius:18px;background:linear-gradient(150deg,#1b3641b0,#0d222d99)}.strata-side h2{font-size:22px;line-height:1.2;margin:12px 0 24px}.strata-side h3{font-size:13px;color:#b3cfca;margin:25px 0 12px}.strata-record small{display:block;color:#93b1b9;font-size:12px}.strata-record strong{font-size:32px;color:#ddefa7}.multiplier{display:flex;align-items:center;gap:12px;margin:20px 0;padding:12px;background:#75538f25;border-radius:12px}.multiplier b{color:#d7b8ff;font-size:32px}.multiplier span{font-size:12px;color:#bbc8d0}.combo-history{list-style:none;padding:0;margin:0;font-size:13px;color:#cedfd8;min-height:80px}.combo-history li{padding:6px 0;border-bottom:1px solid #6d8a8920}.stone-key{display:grid;grid-template-columns:30px 1fr;gap:13px 12px;margin-top:28px;align-items:center}.stone-key p{font-size:11px;color:#9bb7ba;line-height:1.4;margin:0}.stone-key b{display:block;color:#e4eede;font-size:13px}.swatch{width:29px;height:29px;border-radius:7px;box-shadow:inset 0 2px 0 #ffffff30,inset 0 -3px 0 #0003}.sand{background:#d0ab71}.clay{background:repeating-linear-gradient(0deg,#8eadae 0 6px,#698b96 6px 8px)}.basalt{background:#26323e;border:1px solid #74838b}.marble{background:linear-gradient(135deg,#c6a2ef,#6e559f)}.strata-hud{display:grid!important;grid-template-columns:1fr 1.4fr 1fr;max-width:520px!important;margin:0 auto 12px!important;padding:12px 18px!important;gap:15px!important;border-radius:15px;border:1px solid #73979255;background:#102d3b}.strata-hud .stat:last-child{text-align:right}.strata-hud .stat strong{font-size:23px}.pressure-stat span{display:flex;justify-content:space-between;font-size:11px;color:#adc8c4;margin-bottom:6px}.pressure-stat meter{display:block;width:100%;height:13px;accent-color:#d1e989}.pressure-stat meter::-webkit-meter-bar{background:#294650;border:0;border-radius:9px}.pressure-stat meter::-webkit-meter-optimum-value{background:linear-gradient(90deg,#87dbc2,#dfefa0);border-radius:9px}.pressure-stat[data-danger=true] meter::-webkit-meter-optimum-value{background:linear-gradient(90deg,#e3a56f,#ff786f)}.shaft-wrap{min-width:0}.strata-page .stage{width:min(100%,calc((100svh - 210px)*.5));min-width:220px;margin:0 auto;border:2px solid #85aaa269;border-radius:15px;overflow:hidden;box-shadow:0 18px 80px #0006,0 0 40px #6da8b015}.strata-page #game{display:block;width:100%;height:auto;max-height:none;aspect-ratio:1/2;touch-action:none;background:#0b202b}.strata-page .overlay{padding:12px}.strata-page .panel{padding:20px 16px;max-width:100%}.strata-page .panel h2{font-size:27px}.strata-page .panel p{font-size:13px;line-height:1.5}.start-guide{display:grid;gap:6px;text-align:left;margin:18px 0}.start-guide p{margin:0!important;padding:8px;border:1px solid #819b9333;border-radius:8px}.start-guide b{display:block;color:#d9ecae}.strata-powers{display:flex;gap:10px;margin:12px auto 0;max-width:390px}.strata-powers button{flex:1;display:flex;align-items:center;justify-content:center;gap:8px;min-height:54px;padding:10px;border-radius:13px;background:#1e3c4b;border:1px solid #84b0b380;color:#e6fbf2;touch-action:manipulation}.strata-powers button>span{font-size:24px;color:#b7e4ed}.strata-powers button b{font-size:13px}.strata-powers button[aria-pressed=true]{background:#625034;border-color:#ffdd85;box-shadow:0 0 0 2px #ffdd8555}.strata-powers button:disabled{opacity:.4}.strata-powers kbd{font:10px system-ui;padding:3px;border:1px solid #8fb6bf60;border-radius:3px}.power-note{text-align:center;font-size:11px;color:#9dbab8;margin:9px 0}.museum-intro,.strata-tip p{font-size:12px;line-height:1.6;color:#a9c1c1}.round-collection{color:#e5dbaa;font-size:13px;line-height:1.8;min-height:48px}.museum-list{list-style:none;padding:0}.museum-list li{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid #8ab4ad25;font-size:12px;color:#9cb9b6}.museum-list li.found{color:#e1edc6}.strata-tip{margin-top:25px;padding-top:18px;border-top:1px solid #7c999740}.strata-tip b{font-size:13px;color:#d8dbb4}.strata-page .storage{font-size:10px!important}.strata-page .game-shell.is-fullscreen .strata-layout{grid-template-columns:minmax(140px,1fr) var(--play-width) minmax(140px,1fr);width:100%;align-items:center}.strata-page .game-shell.is-fullscreen .strata-side{max-height:calc(100dvh - 120px);overflow:auto}.strata-page .game-shell.is-fullscreen .strata-heading{display:none}.strata-page .game-shell.is-fullscreen .power-note{display:none}
@media(max-width:767px){.strata-layout{display:block}.strata-side{display:none}.strata-heading{text-align:left}.strata-heading h1{font-size:33px}.strata-heading p{font-size:13px}.strata-page .stage{width:min(100%,calc(65svh * .5));min-width:0}.strata-hud{max-width:100%!important;margin-bottom:8px!important}.strata-powers{max-width:100%;margin-top:8px}.strata-powers button{min-height:54px}.strata-powers kbd{display:none}.strata-page .game-shell.is-fullscreen .strata-layout{display:block}.strata-page .game-shell.is-fullscreen .strata-side{display:none}.strata-page .panel h2{font-size:22px}.strata-page .panel p{font-size:12px}.strata-page .start-guide{gap:4px;margin:8px 0}.strata-page .start-guide p{padding:5px}.strata-page .panel .small{font-size:10px}}
@media(prefers-reduced-motion:reduce){.strata-page *{scroll-behavior:auto!important}}

.strata-page .museum-side>.strata-powers{margin:0 0 24px;flex-direction:column;width:100%}
.strata-page .museum-side>.strata-powers button{width:100%;justify-content:space-between}
.strata-page #game-menu .strata-side{display:block!important;margin-top:18px;padding:18px;max-height:none;overflow:visible}
.strata-page #game-menu .stone-key{margin-top:20px}
.strata-page .control-dock>.strata-powers{display:flex;flex-wrap:nowrap;flex:1 1 100%;width:100%!important;max-width:none!important}
.strata-page .control-dock>.strata-powers button{flex:1 1 0!important;min-height:52px!important;white-space:nowrap}
.strata-page .control-dock>.strata-powers button:disabled{opacity:.45}
.strata-page .control-dock:has(>.strata-powers){margin-top:4px}
.strata-page .game-shell.is-fullscreen .strata-layout{flex:none;min-height:0;width:100%}
.strata-page .game-shell.is-fullscreen .strata-side{max-height:calc(var(--viewport-height,100dvh) - var(--frame-top,64px) - var(--frame-bottom,8px));overflow:auto;padding:16px}
.strata-page .game-shell.is-fullscreen .strata-hud{width:min(480px,calc(100% - 16px))!important;grid-template-columns:1fr 1.4fr 1fr;gap:14px!important}
.strata-page .game-shell.is-fullscreen #game-menu .strata-side{max-height:none;overflow:visible}
.strata-page .game-shell.is-fullscreen .shaft-wrap{min-height:0}
.strata-page #result{padding:10px;border:1px solid #a1c7aa66;border-radius:9px;color:#e2f4b9}
.strata-page .panel .primary{background:#dcec99;color:#163139;border-color:#dcec99}
@media(min-width:768px){.strata-page .shaft-wrap>.power-note{margin-top:14px}.strata-page .museum-side .strata-powers{margin:0 0 24px!important}}
@media(max-width:767px){.strata-page .strata-layout .strata-side{display:none}.strata-page .power-note{display:none}.strata-page .game-shell .stage{width:min(100%,calc(65svh * .5));max-width:100%!important}.strata-page .game-shell:not(.is-fullscreen) .strata-hud{max-width:480px!important}.strata-page .control-dock{max-width:480px;margin:8px auto}.strata-page .panel .start-guide p{font-size:12px}}

/* Generous tap areas, plus a context-sensitive compress action. */
.strata-page #compress-action{background:#cfe6b2;color:#173e37;border-color:#cfe6b2}
.strata-page #compress-action>span{color:inherit}
.strata-page #compress-action:disabled{background:#1e3c4b;color:#aac5c5;border-color:#84b0b350}
.strata-page .control-dock>.strata-powers{gap:7px!important}
.strata-page .control-dock>.strata-powers button{padding:6px!important;gap:5px;min-width:0!important}
.strata-page .control-dock>.strata-powers button>span{font-size:20px}
.strata-page .control-dock>.strata-powers button b{font-size:12px}
@media(max-width:767px){.strata-page .game-shell:not(.is-fullscreen) .stage{width:min(100%,max(250px,calc(72svh * .5)))!important}}