:root{--color-brand: #162346;--color-accent: #2f5b96;--color-success: #2f6f4f;--color-night: #101728;--color-muted: #556175;--color-white: #ffffff;--dixons-navy: #162346;--dixons-blue: #2f5b96;--dixons-green: #2f6f4f;--dixons-panel: rgba(10, 20, 42, .88);--dixons-panel-strong: rgba(13, 26, 55, .96);--dixons-border: rgba(118, 174, 242, .72);--dixons-text: #f6fbff}html,body{margin:0;padding:0;height:100%;background:var(--color-night);overflow:hidden;overscroll-behavior:none;font-family:"Source Sans 3",system-ui,sans-serif;color:var(--color-white)}#hvac-hero-root{position:fixed;inset:0}#hvac-hero-ui{position:fixed;inset:0;pointer-events:none;z-index:2}#hvac-hero-ui:focus{outline:none}#hvac-hero-ui .panel{pointer-events:auto}#hvac-hero-ui button{font-family:Barlow Semi Condensed,system-ui,sans-serif;font-weight:700;min-width:44px;min-height:44px;padding:14px 28px;border:2px solid var(--dixons-blue);background:var(--dixons-navy);color:var(--dixons-text);border-radius:10px;cursor:pointer;letter-spacing:.04em;transition:transform .12s ease,box-shadow .12s ease}#hvac-hero-ui button:hover{transform:translateY(-1px);box-shadow:0 8px 24px #10172859}#hvac-hero-ui button:focus-visible{outline:3px solid var(--color-white);outline-offset:3px}#hh-pause,#hh-mute{position:absolute!important;top:16px!important;padding:8px 14px!important;font-size:14px!important}#hh-pause{right:16px!important}#hh-mute{right:120px!important}#hvac-hero-ui input[type=text]{font-family:"Source Sans 3",system-ui,sans-serif;font-size:20px;font-weight:800;padding:12px 14px;border-radius:8px;border:2px solid var(--color-accent);background:#0c1830eb;color:var(--dixons-text);min-width:44px;min-height:44px}.start-panel{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;padding:20px 24px 16px}.start-content{position:absolute;left:clamp(56px,7vw,96px);top:clamp(390px,55vh,500px);width:min(460px,calc(100vw - 48px));display:flex;flex-direction:column;align-items:stretch;gap:12px;padding:18px 20px 20px;transform:none;background:#0a142aeb;border:2px solid rgba(118,174,242,.78);border-radius:16px;box-shadow:0 18px 46px #060e1c6b,inset 0 1px #ffffff1f}.title-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-start}.title-actions #hh-high-scores{background:#ffffff38;border-color:#ffffff8f}.start-quote{max-width:420px;text-align:left;margin:0;display:flex;flex-direction:column;gap:4px;font-family:Barlow Semi Condensed,system-ui,sans-serif}.start-quote strong{font-size:26px;font-weight:900;line-height:1.02}.start-challenge{display:block;font-size:18px;font-weight:900;letter-spacing:.04em;text-transform:uppercase;color:#ffd248}.how-to-play{display:flex;align-items:center;gap:8px;padding:10px 12px;background:#0d1a37fa;border:1px solid var(--dixons-border);border-radius:14px;flex-wrap:wrap;justify-content:flex-start;max-width:430px;box-shadow:0 10px 28px #060e1c2e}.how-step{display:flex;flex-direction:column;align-items:center;gap:2px;min-width:56px;padding:3px 5px;border-radius:8px;background:#ffffff42}.how-icon{font-size:32px;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",system-ui,sans-serif}.how-label{font-size:13px;text-transform:uppercase;letter-spacing:.08em;font-weight:900;color:#f3f7ff}.how-arrow{font-size:22px;color:#b9d7ff;font-weight:700}.name-field{display:flex;flex-direction:column;gap:6px;font-size:16px;font-weight:800;color:#f3f7ff;width:min(340px,100%)}.game-info-strip{position:absolute;left:50%;top:82px;width:min(680px,calc(100vw - 220px));min-height:42px;display:flex;align-items:center;justify-content:center;gap:9px;flex-wrap:wrap;padding:8px 12px;pointer-events:auto;border:1px solid rgba(118,174,242,.64);border-radius:12px;background:#0a142ad1;box-shadow:0 12px 28px #00000047;color:#edf4ff;font-family:Barlow Semi Condensed,system-ui,sans-serif;font-size:15px;font-weight:800;line-height:1.05;transform:translate(-50%);text-align:center}.game-info-strip span{display:inline-flex;align-items:center;white-space:nowrap}.game-info-brand{color:#ffd248;text-transform:uppercase;letter-spacing:.08em}.game-info-tier{padding:4px 8px;border-radius:999px;background:#2f5b9694;color:#fff}.game-info-rule{color:#dbe8ff}.game-info-tool{padding:4px 8px;border-radius:999px;background:#ffffff1f}.game-info-tool[data-armed=ac]{color:#bfefff;background:#5cc8ff33}.game-info-tool[data-armed=furnace]{color:#ffd4a8;background:#d87a2c3d}.game-info-combo{color:#86d46b}.storm-picker{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:24px}.storm-picker #hh-storm-title{font-family:Barlow Semi Condensed,system-ui,sans-serif;font-weight:800;font-size:28px;margin:0;text-transform:uppercase;letter-spacing:.06em;text-align:center}.tier-grid{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;max-width:780px}#hh-back{background:transparent;border-color:transparent;opacity:.75}.tier-card{min-width:220px;max-width:260px;background:linear-gradient(180deg,#1a2a55f5,#0d1a37fa);border:2px solid var(--dixons-border);border-radius:18px;padding:0;text-align:center;cursor:pointer}.tier-card:hover{transform:translateY(-2px)}.tier-card:focus-visible{outline:3px solid var(--color-white)}.tier-card-inner{display:flex;flex-direction:column;align-items:center;gap:6px;padding:22px 18px 20px}.tier-badge{font-size:48px;font-family:"Apple Color Emoji","Segoe UI Emoji","Noto Color Emoji",system-ui,sans-serif;line-height:1;margin-bottom:2px}.tier-name{font-family:Barlow Semi Condensed,system-ui,sans-serif;font-weight:800;font-size:22px;text-transform:uppercase;letter-spacing:.06em;color:#fff}.tier-tagline{font-size:12px;text-transform:uppercase;letter-spacing:.1em;color:#ffd248;font-weight:700}.tier-meta{opacity:.7;font-size:13px;color:#d4dcec}.tier-derek{font-family:Barlow Semi Condensed,system-ui,sans-serif;font-weight:800;font-size:26px;color:#fff;margin-top:4px}.pause-menu{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;padding:24px;background:#101728bd;pointer-events:auto}.pause-menu-shell{width:min(320px,100%);display:flex;flex-direction:column;gap:12px;padding:22px;border:1px solid rgba(255,255,255,.18);border-radius:16px;background:var(--dixons-panel-strong);box-shadow:0 18px 48px #00000061}.pause-menu-shell h2{margin:0 0 4px;font-family:Barlow Semi Condensed,system-ui,sans-serif;font-size:28px;text-transform:uppercase;letter-spacing:.06em;text-align:center}.pause-menu-shell button{width:100%}.pause-help{border:1px solid rgba(255,255,255,.14);border-radius:10px;background:#ffffff14;padding:12px 14px;color:#edf4ff;font-family:"Source Sans 3",system-ui,sans-serif;font-size:15px;font-weight:700;line-height:1.25}.pause-help p{margin:0 0 7px}.pause-help p:last-child{margin-bottom:0}.highscores-panel{position:absolute;inset:0;overflow-y:auto;overflow-x:hidden;padding:36px 24px;background:linear-gradient(180deg,#101728eb,#101728fa),radial-gradient(circle at top,rgba(47,91,150,.28),transparent 45%)}.highscores-shell{width:min(980px,100%);margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:18px}.highscores-header{text-align:center}.highscores-header p{margin:0;color:#ffd248;font-size:13px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}.highscores-header h1{margin:4px 0 0;font-family:Barlow Semi Condensed,system-ui,sans-serif;font-size:clamp(42px,7vw,76px);line-height:.95;text-transform:uppercase}.score-board-grid{width:100%;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.score-board{border:1px solid rgba(47,91,150,.72);border-radius:12px;background:var(--dixons-panel);padding:16px}.score-board-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:10px}.score-board-head h2{margin:0;font-family:Barlow Semi Condensed,system-ui,sans-serif;font-size:22px;text-transform:uppercase;letter-spacing:.04em}.score-board-head span{color:#ffd248;font-weight:800;white-space:nowrap}.score-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:6px}.score-list li{display:flex;justify-content:space-between;gap:12px;padding:7px 9px;border-radius:8px;background:#ffffff0f}.score-list .empty-score{justify-content:center;color:#d4dcec}@media (max-width: 540px){.tier-card{min-width:min(100%,300px);max-width:300px}#hh-pause,#hh-mute{right:10px!important;min-width:44px;min-height:40px;padding:6px 10px!important}#hh-mute{top:10px!important;font-size:0!important}#hh-mute:after{content:"🔊";font-size:16px}#hh-pause{top:58px!important;font-size:13px!important}.start-panel{padding:16px 24px 40px}.start-content{left:50%;right:auto;top:clamp(430px,69vh,600px);width:calc(100vw - 48px);max-width:360px;padding:14px 14px 16px;transform:translate(-50%,-50%)}.game-info-strip{top:76px;left:12px;right:64px;width:auto;max-height:74px;justify-content:flex-start;gap:6px;padding:7px 9px;overflow:hidden;transform:none;font-size:12px;text-align:left}.game-info-brand,.game-info-rule{display:none!important}.title-actions{width:min(320px,100%)}.title-actions button{flex:1 1 140px;padding-inline:16px}.start-quote strong{font-size:21px}.start-challenge{font-size:15px}.how-to-play{gap:6px;padding:10px 12px;justify-content:center}.how-step{min-width:50px;padding-inline:4px}.how-icon{font-size:28px}.how-label{font-size:11px}.storm-picker{justify-content:flex-start;gap:12px;padding:20px 18px 24px}.storm-picker #hh-storm-title{font-size:25px;line-height:1.05}.tier-grid{width:100%;gap:10px}.tier-card-inner{gap:4px;padding:14px 14px 13px}.tier-badge{font-size:38px;margin-bottom:0}.tier-name{font-size:20px}.tier-tagline{font-size:11px}.tier-meta{font-size:12px}.tier-derek{font-size:23px;margin-top:2px}.score-board-grid{grid-template-columns:1fr}.score-board-head{flex-direction:column;align-items:center;text-align:center;gap:4px}}@media (max-width: 540px) and (max-height: 640px){.start-panel{padding:10px 8px 8px}.start-content{top:auto;bottom:8px;width:calc(100vw - 16px);max-width:360px;gap:8px;padding:10px 12px 12px;transform:translate(-50%)}.start-quote strong{font-size:18px;line-height:1.05}.start-challenge{font-size:13px}.how-to-play{gap:4px;padding:7px 8px}.how-step{min-width:46px;padding:2px 3px}.how-icon{font-size:23px}.how-label{font-size:10px;letter-spacing:.04em}.how-arrow{font-size:16px}.name-field{gap:4px;font-size:14px}#hvac-hero-ui input[type=text]{min-height:38px;padding:8px 12px;font-size:18px}.title-actions{gap:8px}.title-actions button{min-height:40px;padding:9px 12px}.highscores-panel{padding:26px 16px 18px}.highscores-shell{gap:10px}.highscores-header p{font-size:11px}.highscores-header h1{font-size:40px}.score-board-grid{gap:9px}.score-board{padding:11px}.score-board-head{margin-bottom:7px}.score-board-head h2{font-size:20px}.score-board-head span{font-size:14px}.score-list li{padding:6px 8px}#hh-scores-back{min-height:40px;padding:9px 18px}}@media (prefers-reduced-motion: reduce){#hvac-hero-ui button{transition:none}#hvac-hero-ui button:hover{transform:none;box-shadow:none}.tier-card:hover{transform:none}.skip-link{transition:none}}.skip-link{position:absolute;top:-48px;left:16px;background:var(--color-brand);color:#fff;padding:10px 14px;border-radius:6px;transition:top .12s;z-index:10000}.skip-link:focus{top:16px;outline:2px solid #fff;outline-offset:2px}#hvac-hero-ui a:focus-visible,#hvac-hero-ui input:focus-visible{outline:3px solid var(--color-white);outline-offset:2px}