:root{color-scheme:dark;--bg:#07101d;--panel:rgba(13,24,42,.82);--line:rgba(170,211,255,.16);--text:#f1f7ff;--muted:#9eb1cc;--ok:#43f0a2;--low:#ffd166;--high:#ff5d73;--cyan:#4ddcff;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Apple SD Gothic Neo","Malgun Gothic",sans-serif}*{box-sizing:border-box}html,body{width:100%;min-height:100%;margin:0}body{overflow-x:hidden;color:var(--text);background:radial-gradient(circle at 20% -10%,rgba(77,220,255,.22),transparent 34%),radial-gradient(circle at 88% 8%,rgba(82,119,255,.2),transparent 30%),linear-gradient(135deg,#050a13 0%,#07101d 48%,#101321 100%)}button{font:inherit}button:disabled{cursor:not-allowed;opacity:.45}.app{min-height:100vh;padding:18px;position:relative}.app:before{content:"";position:fixed;inset:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.1))}.shell{width:min(1180px,100%);margin:0 auto}.eyebrow{display:inline-flex;color:var(--cyan);letter-spacing:.14em;font-weight:950;font-size:12px}.hero{min-height:56vh;display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:center;padding:38px 0 26px}.hero-copy,.hero-board,.card-panel,.result-card{border:1px solid var(--line);border-radius:30px;background:linear-gradient(145deg,rgba(13,24,42,.92),rgba(10,18,32,.76));box-shadow:0 22px 90px rgba(0,0,0,.38);backdrop-filter:blur(14px)}.hero-copy{padding:clamp(24px,4vw,46px)}.hero h1{margin:10px 0 0;font-size:clamp(44px,8vw,88px);line-height:.94;letter-spacing:-.075em}.hero h1 strong{text-shadow:0 0 36px rgba(77,220,255,.24)}.hero p{max-width:680px;margin:20px 0 0;color:var(--muted);line-height:1.72;font-size:17px}.hero-actions,.result-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}.primary-btn,.soft-btn,.ghost-btn,.icon-btn,.sound-toggle{border:0;border-radius:16px;min-height:46px;padding:0 18px;cursor:pointer;font-weight:950;transition:transform .16s ease}.primary-btn{color:#031018;background:linear-gradient(135deg,#55edff,#8bffb7 60%,#f2ff8d);box-shadow:0 12px 32px rgba(77,220,255,.22)}.soft-btn{color:var(--text);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}.ghost-btn,.icon-btn,.sound-toggle{color:var(--text);background:rgba(7,13,25,.68);border:1px solid rgba(255,255,255,.12)}.primary-btn:hover,.soft-btn:hover,.ghost-btn:hover,.icon-btn:hover,.sound-toggle:hover{transform:translateY(-1px)}.progress-strip{margin-top:26px;display:grid;gap:10px;color:var(--muted);font-weight:850}.progress-strip div{height:10px;border-radius:999px;overflow:hidden;background:rgba(255,255,255,.08)}.progress-strip i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--cyan),var(--ok))}.hero-board{min-height:430px;position:relative;overflow:hidden}.power-core{position:absolute;left:50%;top:50%;width:128px;height:128px;transform:translate(-50%,-50%);border-radius:34px;background:rgba(77,220,255,.1);border:1px solid rgba(77,220,255,.3);display:grid;place-items:center}.power-core:before{content:"⚡";font-size:60px;filter:drop-shadow(0 0 18px rgba(77,220,255,.7))}.power-core span{position:absolute;inset:-32px;border:1px solid rgba(77,220,255,.16);border-radius:48px;animation:pulse 2.4s infinite}.grid-line{position:absolute;left:50%;top:50%;width:70%;height:2px;transform-origin:left center;background:linear-gradient(90deg,rgba(77,220,255,.7),transparent)}.grid-line.one{transform:rotate(20deg)}.grid-line.two{transform:rotate(142deg)}.grid-line.three{transform:rotate(266deg)}.mini-building{position:absolute;width:82px;height:82px;display:grid;place-items:center;border-radius:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-size:38px;box-shadow:0 18px 50px rgba(0,0,0,.28)}.mini-building.hospital{left:16%;top:24%}.mini-building.apartment{right:18%;top:22%}.mini-building.tower{left:20%;bottom:19%}.mini-building.subway{right:14%;bottom:18%}.spark{position:absolute;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 20px var(--cyan);animation:flicker 1.6s infinite}.spark.s1{left:39%;top:37%}.spark.s2{left:61%;top:56%;animation-delay:.35s}.spark.s3{left:31%;top:68%;animation-delay:.7s}.stage-select{padding:8px 0 40px}.section-head{display:flex;align-items:end;justify-content:space-between;gap:18px;margin:0 0 16px}.section-head h2{margin:4px 0 0;font-size:clamp(26px,4vw,40px);letter-spacing:-.04em}.stage-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.stage-card{min-height:148px;text-align:left;color:var(--text);border:1px solid var(--line);border-radius:22px;background:rgba(15,27,47,.72);padding:16px;cursor:pointer;display:grid;gap:7px;align-content:start;position:relative;overflow:hidden}.stage-card:after{content:"";position:absolute;inset:auto -20% -42% 20%;height:92px;background:radial-gradient(circle,rgba(77,220,255,.18),transparent 64%)}.stage-card.done{border-color:rgba(67,240,162,.35);background:rgba(22,56,50,.58)}.stage-number{color:var(--cyan);font-weight:950;font-size:12px;letter-spacing:.12em}.stage-card strong{font-size:17px;line-height:1.22}.stage-card small{color:var(--muted)}.stage-card em{align-self:end;color:var(--ok);font-style:normal;font-size:12px;font-weight:950}.topbar{display:grid;grid-template-columns:50px 1fr 50px;gap:12px;align-items:center;width:min(1500px,100%);margin:0 auto 14px}.topbar h1{margin:2px 0 0;font-size:clamp(24px,3vw,40px);letter-spacing:-.04em}.icon-btn,.sound-toggle{width:48px;padding:0}.game-layout{width:min(1500px,100%);margin:0 auto;display:grid;grid-template-columns:320px minmax(0,1fr) 340px;gap:14px;align-items:stretch}.card-panel{padding:16px;min-height:0}.panel-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.panel-title span{color:var(--muted);font-weight:950}.panel-title strong{color:var(--cyan)}.building-list,.switch-list{display:grid;gap:10px;max-height:calc(100vh - 186px);overflow:auto;padding-right:4px}.building-row{display:grid;grid-template-columns:42px 1fr auto;gap:10px;padding:12px;border:1px solid rgba(255,255,255,.1);border-radius:18px;background:rgba(255,255,255,.055)}.building-row.critical{box-shadow:inset 3px 0 0 rgba(77,220,255,.82)}.building-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:14px;background:rgba(255,255,255,.08);font-size:24px}.row-top{display:flex;align-items:center;justify-content:space-between;gap:8px}.row-top strong{font-size:14px}.row-top span,.range-line{color:var(--muted);font-size:12px}.range-line b{color:var(--text)}.gauge{height:10px;border-radius:999px;background:rgba(0,0,0,.36);overflow:hidden;position:relative;margin:8px 0}.gauge i{position:absolute;inset:0 auto 0 0;border-radius:inherit;background:linear-gradient(90deg,var(--low),var(--cyan),var(--ok))}.gauge .safe-zone{position:absolute;top:0;bottom:0;background:rgba(67,240,162,.22);border-left:1px solid rgba(255,255,255,.4);border-right:1px solid rgba(255,255,255,.4)}.building-row p{margin:0;color:var(--muted);line-height:1.35;font-size:12px}.status-badge{align-self:start;padding:5px 8px;border-radius:999px;font-size:11px;font-weight:950}.low .status-badge,.final-buildings .low{color:#2a1a00;background:var(--low)}.ok .status-badge,.final-buildings .ok{color:#031b12;background:var(--ok)}.high .status-badge,.final-buildings .high{color:#fff;background:var(--high)}.district-panel{display:grid;grid-template-rows:auto 1fr auto;min-height:calc(100vh - 108px)}.district-head{display:flex;align-items:start;justify-content:space-between;gap:14px;margin-bottom:12px}.district-head p{margin:4px 0 0;color:var(--muted);line-height:1.5}.turn-box{min-width:96px;padding:12px;border-radius:18px;text-align:center;background:rgba(77,220,255,.1);border:1px solid rgba(77,220,255,.24)}.turn-box span{display:block;color:var(--muted);font-size:12px;font-weight:900}.turn-box strong{display:block;font-size:38px;line-height:1;margin-top:4px}.district-map{position:relative;min-height:560px;border:1px solid rgba(255,255,255,.1);border-radius:26px;overflow:hidden;background:radial-gradient(circle at center,rgba(77,220,255,.16),transparent 26%),linear-gradient(45deg,rgba(255,255,255,.04) 25%,transparent 25%,transparent 50%,rgba(255,255,255,.04) 50%,rgba(255,255,255,.04) 75%,transparent 75%,transparent);background-size:auto,40px 40px}.district-map:before{content:"";position:absolute;inset:28px;border:1px dashed rgba(255,255,255,.12);border-radius:24px}.district-map.signal-fog:after{content:"통신 수치 흐림";position:absolute;right:18px;top:18px;padding:8px 12px;border-radius:999px;color:#fff;background:rgba(255,93,115,.78);font-size:12px;font-weight:950}.substation{position:absolute;left:50%;top:52%;width:126px;height:126px;transform:translate(-50%,-50%);border-radius:34px;background:rgba(7,13,25,.86);border:1px solid rgba(77,220,255,.38);display:grid;place-items:center;z-index:6;box-shadow:0 0 70px rgba(77,220,255,.18)}.substation-core{width:54px;height:54px;border-radius:18px;background:linear-gradient(135deg,var(--cyan),var(--ok));position:relative}.substation-core:after{content:"⚡";position:absolute;inset:0;display:grid;place-items:center;color:#06101a;font-size:30px}.substation strong{font-size:13px;color:var(--muted)}.cable{position:absolute;height:2px;transform-origin:0 50%;z-index:1;opacity:.72;background:linear-gradient(90deg,rgba(77,220,255,.7),transparent)}.cable.low{background:linear-gradient(90deg,rgba(255,209,102,.7),transparent)}.cable.ok{background:linear-gradient(90deg,rgba(67,240,162,.72),transparent)}.cable.high{background:linear-gradient(90deg,rgba(255,93,115,.78),transparent);animation:cableWarn .7s infinite alternate}.map-building{position:absolute;z-index:5;width:118px;min-height:96px;transform:translate(-50%,-50%);border-radius:22px;color:var(--text);border:1px solid rgba(255,255,255,.14);background:rgba(11,21,38,.86);box-shadow:0 16px 48px rgba(0,0,0,.35);cursor:pointer;display:grid;place-items:center;gap:2px;padding:9px}.map-building.critical{border-color:rgba(77,220,255,.45)}.map-building span{font-size:26px}.map-building strong{font-size:12px;line-height:1.2}.map-building em{color:var(--muted);font-style:normal;font-size:12px;font-weight:950}.map-building.low{box-shadow:0 0 0 2px rgba(255,209,102,.18),0 16px 48px rgba(0,0,0,.35)}.map-building.ok{box-shadow:0 0 0 2px rgba(67,240,162,.18),0 16px 48px rgba(0,0,0,.35)}.map-building.high{box-shadow:0 0 0 2px rgba(255,93,115,.3),0 16px 48px rgba(0,0,0,.35);animation:buildingWarn .8s infinite alternate}.fog-active .building-row:not(.critical) .range-line b,.fog-active .map-building:not(.critical) em{filter:blur(4px)}.event-log{min-height:92px;margin-top:12px;padding:12px 14px;border-radius:18px;background:rgba(0,0,0,.24);border:1px solid rgba(255,255,255,.08);display:grid;align-content:center;gap:5px}.event-log p{margin:0;color:var(--muted);font-size:13px}.event-log p:last-child{color:var(--text)}.switch-card{width:100%;text-align:left;display:grid;gap:8px;padding:13px;border:1px solid rgba(255,255,255,.1);border-radius:18px;color:var(--text);background:rgba(255,255,255,.055);cursor:pointer}.switch-card:hover{border-color:rgba(77,220,255,.34)}.switch-card.on{background:rgba(67,240,162,.12);border-color:rgba(67,240,162,.34)}.switch-card.disabled{opacity:.45}.switch-kind{width:fit-content;padding:4px 8px;border-radius:999px;background:rgba(77,220,255,.14);color:var(--cyan);font-size:11px;font-weight:950}.switch-card strong{font-size:15px}.switch-card small{color:var(--muted);line-height:1.38}.effect-list{display:flex;flex-wrap:wrap;gap:5px}.effect-list em{font-style:normal;font-size:11px;padding:4px 7px;border-radius:999px;background:rgba(255,255,255,.08);color:#cfe0f8}.switch-foot{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px}.switch-foot b{color:var(--text)}.command-bar{position:sticky;bottom:12px;z-index:20;width:min(1500px,100%);margin:14px auto 0;padding:10px;border:1px solid rgba(255,255,255,.14);border-radius:24px;background:rgba(6,12,24,.82);backdrop-filter:blur(16px);box-shadow:0 20px 70px rgba(0,0,0,.42);display:grid;grid-template-columns:repeat(3,auto) 1fr 1.2fr;gap:10px;align-items:center}.stat-chip{min-height:48px;display:grid;align-content:center;padding:7px 13px;border-radius:15px;background:rgba(255,255,255,.06)}.stat-chip span{color:var(--muted);font-size:11px;font-weight:900}.stat-chip strong{font-size:18px}.result-screen{min-height:calc(100vh - 36px);display:grid;place-items:center}.result-card{width:min(850px,100%);padding:clamp(24px,5vw,46px);text-align:center}.result-card h1{margin:8px 0 0;font-size:clamp(36px,7vw,76px);letter-spacing:-.065em}.rank-mark{margin:10px auto 0;width:min(210px,60vw);height:min(210px,60vw);display:grid;place-items:center;border-radius:50%;font-size:clamp(72px,16vw,150px);font-weight:1000;color:#06101a;background:linear-gradient(135deg,var(--cyan),var(--ok),#f6ff8d);box-shadow:0 0 80px rgba(77,220,255,.25)}.result-card.fail .rank-mark{background:linear-gradient(135deg,#ff5d73,#ffd166)}.result-card p{color:var(--muted);line-height:1.6}.result-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin:20px 0}.result-metrics div{padding:14px;border-radius:18px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08)}.result-metrics span{display:block;color:var(--muted);font-size:12px;font-weight:900}.result-metrics strong{display:block;margin-top:4px;font-size:26px}.final-buildings{display:flex;flex-wrap:wrap;gap:7px;justify-content:center}.final-buildings span{padding:7px 10px;border-radius:999px;font-size:12px;font-weight:950}.result-actions{justify-content:center}.toast{position:fixed;left:50%;bottom:22px;z-index:100002;transform:translate(-50%,22px);opacity:0;pointer-events:none;max-width:min(520px,calc(100vw - 28px));padding:12px 16px;border-radius:16px;color:var(--text);background:rgba(6,12,24,.92);border:1px solid rgba(255,255,255,.16);box-shadow:0 20px 70px rgba(0,0,0,.45);transition:opacity .18s ease,transform .18s ease}.toast.show{opacity:1;transform:translate(-50%,0)}.toast[data-type=warn]{border-color:rgba(255,93,115,.4)}.toast[data-type=success]{border-color:rgba(67,240,162,.4)}@keyframes pulse{0%{transform:scale(.82);opacity:.75}100%{transform:scale(1.18);opacity:0}}@keyframes flicker{0%,100%{opacity:.28;transform:scale(.8)}50%{opacity:1;transform:scale(1.4)}}@keyframes cableWarn{from{opacity:.45}to{opacity:1}}@keyframes buildingWarn{from{transform:translate(-50%,-50%) scale(.99)}to{transform:translate(-50%,-50%) scale(1.015)}}@media(max-width:1180px){.hero{grid-template-columns:1fr}.hero-board{min-height:330px}.stage-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.game-layout{grid-template-columns:1fr}.district-panel{min-height:auto}.building-list,.switch-list{max-height:none}.district-map{min-height:520px}.command-bar{grid-template-columns:repeat(3,1fr)}.command-bar .soft-btn,.command-bar .primary-btn{grid-column:span 3}}@media(max-width:720px){.app{padding:12px}.hero-copy,.hero-board,.card-panel,.result-card{border-radius:22px}.hero{padding-top:14px}.hero-actions .primary-btn,.hero-actions .soft-btn,.hero-actions .ghost-btn,.result-actions button{width:100%}.stage-grid{grid-template-columns:1fr}.topbar{grid-template-columns:44px 1fr 44px}.icon-btn,.sound-toggle{width:42px;min-height:42px}.building-row{grid-template-columns:36px 1fr}.building-icon{width:36px;height:36px;font-size:21px}.status-badge{grid-column:2;justify-self:start}.district-head{display:grid}.turn-box{width:100%}.district-map{min-height:460px}.substation{width:94px;height:94px;border-radius:26px}.substation-core{width:44px;height:44px}.map-building{width:92px;min-height:82px;border-radius:18px}.map-building span{font-size:22px}.map-building strong,.map-building em{font-size:11px}.command-bar{position:static;grid-template-columns:1fr 1fr;border-radius:20px}.stat-chip:nth-child(3),.command-bar .soft-btn,.command-bar .primary-btn{grid-column:span 2}.result-metrics{grid-template-columns:1fr 1fr}}