:root{--bg:#17202a;--panel:#202b36;--line:#344554;--cream:#f2e8d6;--ink:#27333c;--muted:#91a0ab;--accent:#f2c94c}
*{box-sizing:border-box}html,body{width:100%;overflow-x:hidden}body{margin:0;background:#151d26;color:#f8fafb;font-family:Inter,system-ui,sans-serif}.page{width:min(1510px,100%);margin:auto;padding:12px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:9px}.brand{display:flex;align-items:center;gap:10px}.mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#f6d365,#f4a261);color:#27313a;display:grid;place-items:center;font-weight:950}.brand strong,.brand span{display:block}.brand strong{font-size:17px}.brand span{font-size:10px;color:var(--muted)}.actions{display:flex;gap:7px}.btn{border:1px solid var(--line);background:var(--panel);color:#fff;border-radius:9px;padding:8px 11px;font-size:11px;font-weight:800;cursor:pointer;text-decoration:none}.btn.home{background:#293744}.btn.primary{background:var(--accent);border-color:var(--accent);color:#252d33}.btn.big{padding:11px 18px}.ad{position:relative;display:flex;align-items:center;justify-content:center;background:#1a242e;border:1px solid #2d3d4b;border-radius:9px}.ad:not(.has-ad):before{content:"ADVERTISEMENT";font-size:9px;letter-spacing:1px;color:#586b79}.topad,.bottomad{min-height:90px}.topad{margin-bottom:9px}.bottomad{margin-top:9px}.layout{display:flex;gap:9px;align-items:flex-start}.rail{flex:0 0 170px;min-height:600px}.gamecol{flex:1 1 0;min-width:0}.game{background:var(--panel);border:1px solid var(--line);border-radius:18px;overflow:hidden}.hud{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;padding:10px 14px;border-bottom:1px solid var(--line)}.hud small,.result small{display:block;font-size:8px;text-transform:uppercase;color:var(--muted)}.hud b{font-size:16px}.boardwrap{position:relative;min-height:540px;padding:24px;display:grid;place-items:center;background:linear-gradient(180deg,#e9dfcd,#d7c9b2)}.board{display:grid;gap:5px;width:min(72vh,720px);height:min(72vh,720px);max-width:100%;aspect-ratio:1;background:#b7aa94;border:8px solid #81745f;border-radius:18px;padding:5px;box-shadow:0 24px 60px rgba(44,37,29,.25)}.cell{position:relative;border-radius:7px;background:#eee5d5;box-shadow:inset 0 0 0 1px rgba(65,56,45,.08)}.cell.wall{background:#5e6870;box-shadow:inset 0 -6px 0 #414b53,inset 0 0 0 2px #75818a}.target{position:absolute;inset:20%;border:3px dashed currentColor;border-radius:50%;opacity:.52}.piece{position:absolute;inset:14%;border-radius:50%;display:grid;place-items:center;box-shadow:0 7px 14px rgba(0,0,0,.24),inset 0 3px 0 rgba(255,255,255,.45);transition:transform .11s ease}.piece:after{content:"";width:38%;height:38%;border-radius:50%;background:rgba(255,255,255,.5)}.red{color:#df5a55}.piece.red{background:#df5a55}.blue{color:#4b8edb}.piece.blue{background:#4b8edb}.green{color:#58a96d}.piece.green{background:#58a96d}.yellow{color:#d7a92f}.piece.yellow{background:#e2b53d}.purple{color:#956fc7}.piece.purple{background:#956fc7}.orange{color:#df8447}.piece.orange{background:#df8447}.matched .piece{box-shadow:0 0 0 4px rgba(255,255,255,.78),0 0 22px currentColor,inset 0 3px 0 rgba(255,255,255,.5)}.overlay{position:absolute;inset:0;z-index:10;display:grid;place-items:center;padding:16px;background:rgba(35,39,40,.58);backdrop-filter:blur(5px)}.hidden{display:none!important}.modal{width:min(520px,94%);padding:24px;text-align:center;background:#202b36;border:1px solid #415260;border-radius:20px;box-shadow:0 30px 80px rgba(0,0,0,.34)}.modal em{font-style:normal;color:#f2c94c;font-size:9px;font-weight:900;letter-spacing:1.2px}.modal em.success{color:#7be3a1}.modal h1{font-size:30px;margin:7px 0}.modal p{font-size:12px;color:#a9b5bd;line-height:1.55}.demo{display:flex;justify-content:center;gap:8px;margin:17px 0}.demo span{width:42px;height:42px;border-radius:10px;background:#2b3945;border:1px solid #455865;display:grid;place-items:center;font-weight:900}.score{font-size:50px;color:#f2c94c;font-weight:950}.result{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}.result div{padding:9px;background:#17222b;border:1px solid #344654;border-radius:10px}.controls{text-align:center;padding:10px;border-top:1px solid var(--line)}.controls button{width:44px;height:38px;margin:2px;border:1px solid #435463;background:#2a3945;color:white;border-radius:8px;font-weight:900;cursor:pointer}.foot{display:flex;justify-content:space-between;gap:12px;padding:8px 12px;border-top:1px solid var(--line);color:var(--muted);font-size:10px}.below{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:9px}.below>div{padding:13px;background:var(--panel);border:1px solid var(--line);border-radius:13px}.below b,.below span{display:block}.below b{font-size:11px}.below span{font-size:10px;color:var(--muted);margin-top:4px;line-height:1.45}footer{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:14px 3px;color:#71808b;font-size:10px}footer span:last-child{display:flex;gap:12px}footer a{color:inherit;text-decoration:none}@media(max-width:1279px) and (min-width:1024px){.rail{flex-basis:140px}}@media(max-width:1023px){.rail{display:none!important}.layout{display:block}}@media(max-width:720px){.page{padding:8px}.topad{display:none!important}.boardwrap{min-height:500px;padding:10px}.board{width:min(92vw,520px);height:auto}.below{grid-template-columns:1fr}.bottomad{min-height:50px}}
.hud{grid-template-columns:repeat(5,1fr)}
.savebox{margin:12px 0;padding:11px;border:1px solid #665b2d;background:#2d2a18;border-radius:10px}.savebox b,.savebox span{display:block}.savebox span{font-size:9px;color:#b9b39b;margin:4px 0 8px}.saved{margin:9px 0;padding:10px 12px;border:1px solid #3d6a4b;background:#17271c;color:#9de0ae;border-radius:9px;font-size:10px}.scorearea{display:grid;grid-template-columns:1.2fr .8fr;gap:9px;margin-top:9px}.leaderpanel,.accountpanel{background:var(--panel);border:1px solid var(--line);border-radius:13px;padding:13px}.leaderhead,.accountpanel{display:flex;justify-content:space-between;align-items:center;gap:12px}.leaderhead b,.accountpanel b{font-size:11px}.leaderhead span,.accountpanel span{font-size:9px;color:var(--muted)}.accountpanel b,.accountpanel span{display:block}.leader-row{display:grid;grid-template-columns:30px 1fr auto;gap:8px;padding:7px 0;border-top:1px solid var(--line);font-size:10px}.leader-row:first-child{border-top:0}.empty-leader{padding:8px 0;color:var(--muted);font-size:10px}@media(max-width:720px){.scorearea{grid-template-columns:1fr}.hud{grid-template-columns:repeat(3,1fr)}.hud>div:nth-child(4),.hud>div:nth-child(5){display:none}}

.leader-row b{font-variant-numeric:tabular-nums}


/* FULL-VIEW PLAY AREA */
.stage,.game-stage,.playfield,.boardwrap{max-height:calc(100svh - 180px)!important}
@media(max-width:760px){.stage,.game-stage,.playfield,.boardwrap{max-height:calc(100svh - 165px)!important}}

/* LOCKSTEP MODERN VISUAL SYSTEM V1 — presentation only */
:root{--ls-bg:#070910;--ls-panel:#111722;--ls-panel-2:#17202d;--ls-line:rgba(142,164,195,.21);--ls-text:#f7f9ff;--ls-muted:#929fb2;--ls-gold:#ffd76a;--ls-cyan:#66e0ff;--ls-green:#7af2a5}
html[data-game="lockstep"]{color-scheme:dark}
body{background:radial-gradient(circle at 12% 4%,rgba(255,190,73,.12),transparent 30rem),radial-gradient(circle at 88% 27%,rgba(85,172,255,.1),transparent 32rem),linear-gradient(180deg,#070910,#0c121d 55%,#070910);color:var(--ls-text);background-attachment:fixed}
.page{padding:14px}.topbar{border-color:var(--ls-line)!important;background:linear-gradient(135deg,rgba(20,26,39,.97),rgba(9,14,23,.98))!important}.brand .mark{border-color:rgba(255,215,106,.38)!important;box-shadow:0 0 22px rgba(255,215,106,.13)!important}.brand strong{letter-spacing:.75px}.brand span{color:var(--ls-muted)}
.btn{min-height:40px;border-color:var(--ls-line);border-radius:10px;background:#161e2b;color:var(--ls-text);font-size:10px;transition:transform .13s ease,border-color .13s ease,background .13s ease}.btn:hover{transform:translateY(-1px);border-color:rgba(255,215,106,.48);background:#1d2838}.btn.primary{background:linear-gradient(135deg,var(--ls-gold),#ffe69a);border-color:transparent;color:#171208;box-shadow:0 9px 28px rgba(255,215,106,.13)}.sg-audio-btn{width:40px!important;padding:0!important}.sg-audio-btn.muted{color:#727e91!important}
.game{border-color:var(--ls-line);border-radius:22px;background:linear-gradient(150deg,rgba(18,24,36,.98),rgba(9,14,23,.98));box-shadow:0 28px 88px rgba(0,0,0,.38),inset 0 1px rgba(255,255,255,.025)}
.hud{gap:1px;padding:0;background:var(--ls-line);border-bottom-color:var(--ls-line)}.hud>div{min-width:0;padding:12px 12px;background:rgba(9,14,23,.96)}.hud small{color:var(--ls-muted);font-weight:850;letter-spacing:.65px}.hud b{display:block;margin-top:4px;font-size:17px;line-height:1}.hud>div:nth-child(2) b{color:var(--ls-gold)}.hud>div:nth-child(4) b{color:var(--ls-green)}
.boardwrap{padding:18px;background:linear-gradient(rgba(102,224,255,.026) 1px,transparent 1px),linear-gradient(90deg,rgba(102,224,255,.026) 1px,transparent 1px),radial-gradient(circle at 50% 47%,rgba(52,79,116,.2),transparent 62%),#080e17;background-size:28px 28px,28px 28px,auto,auto}.board{gap:5px;border:1px solid rgba(164,185,214,.28);border-radius:20px;padding:8px;background:#0b111a;box-shadow:0 25px 72px rgba(0,0,0,.4),inset 0 0 0 7px rgba(255,255,255,.018),inset 0 0 55px rgba(61,101,142,.08)}.cell{border:1px solid rgba(145,169,199,.11);border-radius:8px;background:#121b27;box-shadow:inset 0 1px rgba(255,255,255,.025)}.cell.wall{border-color:#455366;background:linear-gradient(145deg,#354356,#232d3b);box-shadow:inset 0 -5px rgba(0,0,0,.24),inset 0 0 0 1px rgba(196,217,240,.08)}.target{inset:22%;border-width:3px;opacity:.58}.piece{inset:15%;box-shadow:0 8px 17px rgba(0,0,0,.35),inset 0 3px rgba(255,255,255,.42);transition:transform .11s ease,box-shadow .11s ease}.matched .piece{box-shadow:0 0 0 3px rgba(255,255,255,.82),0 0 23px currentColor,inset 0 3px rgba(255,255,255,.5)}
.overlay{background:rgba(4,7,12,.77);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.modal{border-color:rgba(145,174,210,.26);border-radius:23px;background:linear-gradient(145deg,rgba(22,30,44,.98),rgba(10,16,26,.98));box-shadow:0 30px 95px rgba(0,0,0,.56),inset 0 1px rgba(255,255,255,.04)}.modal em{color:var(--ls-gold);letter-spacing:1.5px}.modal em.success{color:var(--ls-green)}.modal h1{font-size:clamp(29px,4.5vw,40px);letter-spacing:-1.45px;line-height:1.05}.modal p{color:#adb8c8}.demo span{border-color:var(--ls-line);background:#0c1520;color:var(--ls-cyan);box-shadow:inset 0 1px rgba(255,255,255,.03)}.score{color:var(--ls-gold);text-shadow:0 0 28px rgba(255,215,106,.2)}.result div{border-color:var(--ls-line);background:#0a131e}.savebox,.saved{border-color:rgba(122,242,165,.28);background:rgba(18,58,43,.5)}
.controls{padding:11px;border-top-color:var(--ls-line);background:#0a131d}.controls button{width:48px;height:43px;border-color:rgba(145,174,210,.3);border-radius:10px;background:#182536;color:#f4f8ff;font-size:18px;transition:transform .1s ease,background .1s ease}.controls button:hover{background:#22344a;border-color:var(--ls-cyan)}.controls button:active{transform:translateY(1px) scale(.97);background:#293d54}.foot{padding:10px 13px;border-top-color:var(--ls-line);background:#09121c;color:var(--ls-muted)}.below{gap:12px}.below>div,.leaderpanel,.accountpanel{border-color:var(--ls-line)!important;background:linear-gradient(145deg,rgba(16,23,35,.96),rgba(9,15,24,.96))!important}.below b,.leaderhead b,.accountpanel b{color:#f2f6ff}.below span,.leaderhead span,.accountpanel span,.empty-leader{color:var(--ls-muted)}.leader-row{border-top-color:var(--ls-line)}.leader-row b{color:var(--ls-gold)}
@media(max-width:720px){.page{padding:8px}.game{border-radius:17px}.hud>div{padding:10px 8px}.hud b{font-size:16px}.boardwrap{padding:8px;background-size:22px 22px,22px 22px,auto,auto}.board{border-radius:14px;padding:5px}.modal{padding:21px 14px}.controls button{width:50px;height:45px}.foot{display:grid;gap:4px}}
@media(max-width:430px){.result{grid-template-columns:1fr}.modal h1{font-size:27px}}
@media(prefers-reduced-motion:reduce){.btn,.piece,.controls button{transition:none}}