:root{--bg:#222831;--bg-alt:#393e46;--panel:#393e46;--panel-soft:#393e46;--line:#eee3;--text:#eee;--muted:#eeeeee9e;--accent:#ffd369;--accent-rgb:255 211 105;--accent-soft:rgb(var(--accent-rgb)/.2);--danger:#ffd369;--error:#ff6b6b;--radius:12px}*{box-sizing:border-box}html,body{background:linear-gradient(180deg,var(--bg)0%,var(--panel)100%);min-height:100%;color:var(--text);margin:0}body{font-family:IBM Plex Mono,JetBrains Mono,Cascadia Code,SFMono-Regular,monospace}.landing-shell,.landing-shell *,.play-shell,.play-shell *,.site-footer,.site-footer *{text-transform:lowercase}a{color:inherit;text-decoration:none}h1,h2,h3{letter-spacing:.02em;margin:0;font-family:Sora,Manrope,Avenir Next,Segoe UI,sans-serif;line-height:1.18}p{margin:0}.page-shell{width:min(1120px,92vw);margin:0 auto;padding:2rem 0 3.5rem}.hero-shell{place-content:center;min-height:100vh;display:grid}.card{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);box-shadow:none;padding:1rem}.large-card{gap:1rem;padding:1.3rem;display:grid}.inner-card{margin-top:.75rem}.hero-card{gap:1rem;max-width:760px;padding:1.8rem;display:grid}.hero-card h1{font-size:clamp(2rem,4.3vw,3.8rem)}.hero-actions,.actions-row{flex-wrap:wrap;gap:.7rem;display:flex}.actions-row.compact{gap:.5rem}.button{background:var(--accent);color:var(--bg);letter-spacing:.01em;cursor:pointer;border:1px solid #0000;border-radius:999px;padding:.54rem 1rem;font-size:.9rem;font-weight:600;transition:transform .12s,filter .12s}.button:hover{filter:brightness(.96);transform:translateY(-1px)}.button.secondary{border-color:var(--line);color:var(--text);background:0 0}.button.danger{background:var(--danger);color:var(--bg)}.button.button-borderless{border:none}.eyebrow{text-transform:uppercase;letter-spacing:.14em;color:var(--accent);font-size:.74rem}.muted,.small-muted{color:var(--muted)}.small-muted{font-size:.82rem}.play-grid{text-align:center;isolation:isolate;justify-items:center;gap:.9rem;width:min(920px,92vw);display:grid;position:relative}.play-shell{place-items:center;min-height:100vh;padding:1.2rem 0;display:grid}.play-shell .card{box-shadow:none;background:0 0;border:none}.play-grid>*{z-index:2;width:100%;position:relative}.play-hype-layer{pointer-events:none;z-index:1;opacity:0;background:radial-gradient(circle at 50% 62%,rgb(var(--accent-rgb)/calc(var(--hype-intensity,0)*.58))0%,rgb(var(--accent-rgb)/calc(var(--hype-intensity,0)*.2))35%,transparent 74%);transition:opacity .2s,filter .2s;position:fixed;inset:0}.play-hype-active-tier-1{opacity:.72}.play-hype-active-tier-2{opacity:.86;filter:saturate(1.12)}.play-hype-active-tier-3{opacity:1;filter:saturate(1.2)}.card-head{flex-direction:column;gap:.35rem;display:flex}.space-between{flex-flow:wrap;justify-content:space-between;align-items:flex-start;gap:.8rem}.topbar{text-align:left;z-index:30;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:.9rem;width:min(920px,92vw);display:flex;position:fixed;top:.75rem;left:50%;transform:translate(-50%)}.topbar>:first-child{margin-right:auto}.brand-block{gap:.2rem;display:grid}.brand-row{align-items:center;gap:.45rem;display:flex}.brand-logo{border-radius:.45rem;width:1.75rem;height:1.75rem}.settings-logo-button{width:2.1rem;height:2.1rem;color:var(--accent);cursor:pointer;opacity:.76;background:0 0;border:none;place-content:center;font-size:1.25rem;line-height:1;text-decoration:none;transition:opacity .12s,transform .12s;display:inline-grid}.settings-logo-button:hover{opacity:1;transform:rotate(12deg)scale(1.06)}.settings-logo-button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}.topbar-actions{position:relative}.accent-palette-popover{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:60;background:#222831f2;border:1px solid #eeeeee29;border-radius:10px;grid-template-columns:repeat(4,1fr);gap:.38rem;width:10.2rem;padding:.48rem;display:grid;position:absolute;top:calc(100% + .35rem);right:5.2rem}.metronome-style-popover{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:60;background:#222831f2;border:1px solid #eeeeee29;border-radius:10px;gap:.32rem;width:10.8rem;padding:.42rem;display:grid;position:absolute;top:calc(100% + .35rem);right:7.8rem}.key-sound-popover{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);z-index:60;background:#222831f2;border:1px solid #eeeeee29;border-radius:10px;gap:.32rem;width:10.8rem;padding:.42rem;display:grid;position:absolute;top:calc(100% + .35rem);right:2.6rem}.metronome-style-option{color:var(--text);letter-spacing:.05em;text-transform:uppercase;cursor:pointer;opacity:.82;background:0 0;border:1px solid #eeeeee2e;border-radius:999px;align-items:center;gap:.5rem;padding:.26rem .52rem;font-size:.72rem;transition:opacity .12s,border-color .12s,color .12s;display:flex}.metronome-style-option:hover{opacity:1}.metronome-style-option.active{border-color:var(--accent);color:var(--accent);opacity:1}.accent-swatch{cursor:pointer;border:1px solid #eeeeee4d;border-radius:999px;width:1.55rem;height:1.55rem;padding:0;transition:transform .12s,border-color .12s}.accent-swatch:hover{border-color:#eeeeeee6;transform:translateY(-1px)}.accent-swatch.active{border-color:#eeeeeef2;box-shadow:0 0 0 2px #eee3}.sequence-card,.hud-card,.beat-card,.keyboard-card,.action-card,.settings-card{gap:.75rem;display:grid}.sequence-line{flex-wrap:wrap;gap:.42rem;display:flex}.prompt-token{border:1px solid var(--line);text-align:center;background:#eeeeee0a;border-radius:8px;min-width:2rem;padding:.35rem .45rem}.prompt-token.current{border-color:var(--accent);background:var(--accent-soft)}.prompt-token.done{color:#eee6;border-color:#eeeeee1a}.hud-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:.6rem;display:grid}.kpi-label{color:var(--muted);text-transform:lowercase;letter-spacing:.1em;font-size:.72rem}.kpi-value{font-size:1.1rem;font-weight:600}.flow-chip{color:var(--accent);letter-spacing:.1em;text-transform:lowercase;margin-top:.2rem;font-size:.74rem}.flow-milestone-pop{color:var(--accent);letter-spacing:.11em;text-transform:lowercase;margin-top:.16rem;font-size:.68rem;font-weight:700}.flow-milestone-pop.reduced{opacity:.9}.hud-separator{background:linear-gradient(90deg,transparent 0%,var(--line)18%,var(--line)82%,transparent 100%);width:100%;height:1px}.quick-settings-bar{width:min(100%,max-content);margin-top:.1rem;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);scrollbar-width:thin;background:#2e343cd6;border:none;border-radius:12px;flex-wrap:nowrap;justify-content:flex-start;gap:.16rem;max-width:100%;margin-inline:auto;padding:.34rem .44rem;display:flex;overflow-x:auto}.quick-group{align-items:center;gap:.34rem;padding:.08rem .12rem;display:inline-flex;position:relative}.quick-group+.quick-group{margin-left:.62rem}.quick-group+.quick-group:before{content:"";background:#2c3139fa;border-radius:8px;width:4px;height:1.08rem;position:absolute;top:50%;left:-.42rem;transform:translateY(-50%)}.quick-chip{color:var(--text);letter-spacing:.06em;text-transform:lowercase;cursor:pointer;opacity:.78;background:0 0;border:1px solid #eeeeee3d;border-radius:999px;justify-content:center;align-items:center;min-height:1.74rem;padding:.28rem .62rem;font-size:.72rem;line-height:1;transition:opacity .12s,border-color .12s,color .12s;display:inline-flex}.quick-chip.duration-chip{text-transform:none}.quick-chip:hover{opacity:1}.quick-chip.active{border-color:var(--accent);color:var(--accent);opacity:1}.quick-chip.unforgiving-chip.active{border-color:var(--error);color:var(--error)}.quick-chip:disabled{opacity:.4;cursor:not-allowed}.quick-select{border:1px solid var(--line);color:var(--text);letter-spacing:.06em;text-transform:lowercase;cursor:pointer;opacity:.82;background:#2e343ceb;border-radius:999px;width:auto;min-width:7rem;height:1.74rem;padding:0 1.5rem 0 .62rem;font-size:.72rem;line-height:1}.quick-select,.settings-popup select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23eeeeee' stroke-width='1.4' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-position:calc(100% - .6rem);background-repeat:no-repeat;background-size:10px 6px;padding-right:1.7rem;line-height:1.2}.quick-select::-ms-expand{display:none}.settings-popup select::-ms-expand{display:none}.quick-select option{color:var(--text);background:#2e343c}.quick-select:disabled{opacity:.4;cursor:not-allowed}.quick-select:focus-visible,.quick-select:focus{box-shadow:none;outline:none}.difficulty-select{text-transform:none}.fab-stack{z-index:35;align-items:center;gap:.38rem;display:flex;position:fixed;bottom:1rem;right:1rem}.turn-up-fab,.test-mode-fab{width:auto;min-width:0;max-width:max-content;color:var(--text);letter-spacing:.08em;text-transform:lowercase;cursor:pointer;opacity:.82;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#222831e6;border:1px solid #eeeeee38;border-radius:999px;padding:.45rem .82rem;font-size:.72rem;transition:opacity .12s,border-color .12s,color .12s,transform .12s}.play-grid>.fab-stack{width:auto}.site-footer{z-index:20;text-align:center;position:fixed;bottom:.6rem;left:50%;transform:translate(-50%)}.site-footer p{letter-spacing:.05em;color:var(--muted);font-size:.76rem}.site-footer a{color:var(--accent);text-decoration:none}.site-footer a:hover{text-underline-offset:.18rem;text-decoration:underline}.turn-up-fab:hover,.test-mode-fab:hover{opacity:1;transform:translateY(-1px)}.turn-up-fab.active,.test-mode-fab.active{border-color:var(--accent);color:var(--accent);opacity:1}.turn-up-fab:disabled,.test-mode-fab:disabled{opacity:.45;cursor:not-allowed;transform:none}.play-word-preview{text-align:center;letter-spacing:.14em;color:var(--accent);min-height:1.6em;margin:-.2rem 0 .2rem;font-size:clamp(1rem,2.8vw,1.45rem);font-weight:700}.sequence-progress-line{flex-wrap:wrap;justify-content:center;gap:.34rem;min-height:1rem;display:flex}.sequence-progress-dot{background:0 0;border:1px solid #eeeeee47;border-radius:999px;width:.58rem;height:.58rem;transition:border-color .12s,background-color .12s,transform .12s}.sequence-progress-dot.preview-done{background:0 0;border-color:#eeeeeeeb}.sequence-progress-dot.player-done{border-color:var(--accent);background:var(--accent)}.sequence-progress-dot.preview-current,.sequence-progress-dot.player-current{background:0 0;border-color:#eeeeee59;transform:scale(1.16)}.beat-card{text-align:center;place-items:center;min-height:74px}.beat-orb,.beat-static{background:radial-gradient(circle at 30% 30%,var(--accent)0%,var(--accent)42%,var(--panel)100%);width:52px;height:52px;box-shadow:0 0 0 4px rgb(var(--accent-rgb)/.2);border-radius:999px}.beat-static{color:var(--bg);text-transform:lowercase;place-content:center;font-size:.56rem;font-weight:600;display:grid}.beat-static.hype-tier-1{box-shadow:0 0 0 4px rgb(var(--accent-rgb)/.26)}.beat-static.hype-tier-2{box-shadow:0 0 0 5px rgb(var(--accent-rgb)/.32)}.beat-static.hype-tier-3{box-shadow:0 0 0 6px rgb(var(--accent-rgb)/.38)}.metronome-bars{justify-content:center;align-items:flex-end;gap:4px;width:58px;height:48px;display:flex}.metronome-bar{background:linear-gradient(180deg,var(--accent)0%,rgb(var(--accent-rgb)/.34)100%);transform-origin:bottom;border-radius:4px;width:9px;height:34px}.metronome-radar{place-items:center;width:54px;height:54px;display:grid;position:relative}.metronome-radar.hype-tier-1 .metronome-radar-ring{box-shadow:inset 0 0 0 9px rgb(var(--accent-rgb)/.1)}.metronome-radar.hype-tier-2 .metronome-radar-ring{box-shadow:inset 0 0 0 10px rgb(var(--accent-rgb)/.13),0 0 10px rgb(var(--accent-rgb)/.18)}.metronome-radar.hype-tier-3 .metronome-radar-ring{box-shadow:inset 0 0 0 10px rgb(var(--accent-rgb)/.16),0 0 14px rgb(var(--accent-rgb)/.26)}.metronome-radar-ring{border:1px solid rgb(var(--accent-rgb)/.54);width:54px;height:54px;box-shadow:inset 0 0 0 8px rgb(var(--accent-rgb)/.08);border-radius:999px}.metronome-radar-sweep{background:linear-gradient(180deg,var(--accent)0%,transparent 100%);transform-origin:bottom;width:2px;height:24px;position:absolute;bottom:27px}.keyboard-grid{gap:.38rem;padding-bottom:.25rem;display:grid;overflow-x:auto}.keyboard-row{gap:.33rem;min-width:100%;display:flex}.keycap{background:var(--bg-alt);min-height:34px;color:var(--text);white-space:nowrap;border:1px solid #eeeeee2e;border-radius:9px;place-content:center;padding:0 .45rem;font-size:.72rem;transition:border-color .12s,background-color .12s;display:grid}.keycap.expected{border-color:var(--accent);background:var(--accent-soft)}.keycap.hit{border-color:var(--accent);background:rgb(var(--accent-rgb)/.3)}.keycap.miss{border-color:var(--error);background:#ff6b6b38;box-shadow:0 0 0 2px #ff6b6b29}.keycap.off-tempo{background:#eeeeee47;border-color:#eeeeeef0;box-shadow:0 0 0 2px #eeeeee24}.chip-row{flex-wrap:wrap;gap:.45rem;display:flex}.chip{border:1px solid var(--line);color:var(--text);cursor:pointer;background:0 0;border-radius:999px;padding:.33rem .78rem}.chip.active{border-color:var(--accent);background:var(--accent-soft)}.settings-grid{gap:.45rem;display:grid}.settings-modal{background:0 0;gap:1rem;width:min(520px,92vw);margin:0 auto;padding:.2rem 0;display:grid}.settings-modal-head{justify-content:space-between;align-items:center;display:flex}.settings-close-button{color:var(--text);opacity:.72;background:0 0;border:none;padding:.05rem .22rem;font-size:1.4rem;line-height:1;text-decoration:none;transition:opacity .12s,transform .12s}.settings-close-button:hover{opacity:1;transform:scale(1.08)}.settings-close-button:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}.settings-modal .settings-card{box-shadow:none;background:0 0;border:none;padding:0}.settings-overlay{z-index:50;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#22283129;place-items:center;display:grid;position:fixed;inset:0}.settings-popup{background:var(--panel);border:1px solid #eeeeee24;border-radius:9px;width:min(900px,96vw);max-height:min(88vh,900px);padding:.56rem .62rem;overflow-y:auto}.settings-popup h2{letter-spacing:.02em;font-size:1rem}.field{gap:.2rem;font-size:.74rem;display:grid}.field.inline{align-items:center;gap:.45rem;display:flex}input[type=range],input[type=text],input:not([type]),select{background:var(--bg-alt);border:1px solid var(--line);width:100%;color:var(--text);border-radius:6px;padding:.28rem .36rem;font-family:inherit;font-size:.74rem}.settings-popup .small-muted{font-size:.72rem}.settings-popup .actions-row.compact{gap:.3rem}.settings-popup .quick-chip{letter-spacing:.045em;min-height:1.42rem;padding:.2rem .44rem;font-size:.64rem}.settings-popup input[type=range],.settings-popup input[type=text],.settings-popup input:not([type]),.settings-popup select{padding:.24rem .32rem;font-size:.72rem}.settings-popup select:focus,.settings-popup select:focus-visible{box-shadow:none;outline:none}.settings-divider{background:linear-gradient(90deg,transparent 0%,var(--line)18%,var(--line)82%,transparent 100%);width:100%;height:1px}.beatmap-manager{gap:.42rem;display:grid}.beatmap-head{justify-content:space-between;align-items:baseline;gap:.4rem;display:flex}.beatmap-recorder{gap:.32rem;display:grid}.sequencer-wrap{border:1px solid #eeeeee26;border-radius:7px;padding:.24rem;overflow-x:visible}.sequencer-grid{gap:.18rem;width:100%;min-width:0;display:grid}.sequencer-row{grid-template-columns:2.2rem repeat(16,minmax(0,1fr));align-items:center;gap:.16rem;display:grid}.sequencer-row-label{color:var(--muted);text-transform:uppercase;letter-spacing:.05em;font-size:.55rem}.sequencer-cell{aspect-ratio:1;cursor:pointer;background:#eeeeee0f;border:1px solid #eeeeee2e;border-radius:3px;width:100%;min-width:15px;padding:0;transition:border-color .1s,background-color .1s,transform .1s}.sequencer-cell:hover{border-color:rgb(var(--accent-rgb)/.6)}.sequencer-cell.active{border-color:var(--accent);background:rgb(var(--accent-rgb)/.32)}.sequencer-cell.playhead{border-color:#eeeeeee6;box-shadow:0 0 0 2px #eeeeee57}.beatmap-step-list{flex-wrap:wrap;gap:.24rem;min-height:1.5rem;display:flex}.beatmap-list{gap:.3rem;display:grid}.beatmap-list-item{border:1px solid #eeeeee29;border-radius:7px;gap:.24rem;padding:.3rem .36rem;display:grid}input[type=range]{accent-color:var(--accent)}input[type=range]::-webkit-slider-runnable-track{background:rgb(var(--accent-rgb)/.28);border-radius:999px;height:6px}input[type=range]::-webkit-slider-thumb{appearance:none;border:1px solid rgb(var(--accent-rgb)/.95);background:var(--accent);border-radius:999px;width:16px;height:16px;margin-top:-5px}input[type=range]::-moz-range-track{background:rgb(var(--accent-rgb)/.28);border-radius:999px;height:6px}input[type=range]::-moz-range-thumb{border:1px solid rgb(var(--accent-rgb)/.95);background:var(--accent);border-radius:999px;width:16px;height:16px}.toggle-buttons-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:.4rem;display:grid}.toggle-pill{color:var(--text);cursor:pointer;min-height:2rem;font:inherit;letter-spacing:.04em;background:#eeeeee0d;border:1px solid #eeeeee38;border-radius:8px;justify-content:space-between;align-items:center;gap:.45rem;padding:.34rem .48rem;font-size:.68rem;transition:border-color .14s,background-color .14s,color .14s;display:flex}.toggle-pill:hover{border-color:rgb(var(--accent-rgb)/.5)}.toggle-pill.active{border-color:var(--accent);background:rgb(var(--accent-rgb)/.16)}.toggle-pill-state{letter-spacing:.06em;color:var(--muted);font-size:.6rem}.toggle-pill.active .toggle-pill-state{color:var(--accent)}.toggle-pill:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.history-list{gap:.6rem;display:grid}.history-item{border:1px solid var(--line);background:var(--panel-soft);border-radius:10px;padding:.55rem .7rem}.landing-shell{text-align:center;cursor:pointer;-webkit-user-select:none;user-select:none;align-content:center;justify-items:center;gap:.85rem;min-height:100vh;padding:2rem;display:grid}.landing-shell:focus-visible{outline:2px solid var(--accent);outline-offset:-.4rem}.landing-title{letter-spacing:.03em;font-size:clamp(3.1rem,12vw,8rem);font-weight:800;line-height:.96}.landing-logo-wrap{place-items:center;display:grid}.landing-logo{border-radius:1.2rem;width:clamp(82px,14vw,124px);height:auto}.brand-key{color:var(--accent)}.landing-start{letter-spacing:.18em;text-transform:uppercase;color:var(--text);opacity:.5;font-size:clamp(.8rem,2vw,1.06rem)}.play-start-hint,.play-status-hint{text-align:center}.play-restart-wrap{justify-content:center;display:flex}.play-session-controls{align-items:center;gap:.4rem;display:flex}.keyboard-overlay-wrap{position:relative}.keyboard-overlay-wrap.hype-pulse:after{content:"";pointer-events:none;border:1px solid rgb(var(--accent-rgb)/.52);box-shadow:0 0 0 2px rgb(var(--accent-rgb)/.2);border-radius:12px;position:absolute;inset:-6px}.play-session-status-overlay{text-align:center;-webkit-backdrop-filter:blur(1.5px);backdrop-filter:blur(1.5px);background:#2228318f;border-radius:10px;align-content:center;justify-items:center;gap:.45rem;display:grid;position:absolute;inset:0}.play-countdown-overlay{text-align:center;-webkit-backdrop-filter:blur(1.5px);backdrop-filter:blur(1.5px);background:#2228317a;border-radius:10px;place-items:center;display:grid;position:absolute;inset:0}.play-countdown-number{color:var(--accent);text-shadow:0 0 22px rgb(var(--accent-rgb)/.25);font-size:clamp(2.4rem,8vw,4.2rem);font-weight:800;line-height:1}.restart-icon-button{color:var(--accent);cursor:pointer;opacity:.8;background:0 0;border:none;padding:.2rem .5rem;font-size:1.8rem;line-height:1;transition:opacity .12s,transform .12s}.restart-icon-button:hover{opacity:1;transform:rotate(-14deg)}.restart-icon-button:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:6px}@media (max-width:900px){.hud-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:640px){.page-shell{width:94vw;padding:1.1rem 0 2.4rem}.hero-card{padding:1.2rem}.button{text-align:center;width:100%}.actions-row.compact .button{width:auto}.topbar{flex-direction:column}}