@import "https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800&display=swap";*{box-sizing:border-box;margin:0;padding:0;font-family:Nunito,Tahoma,Geneva,Verdana,sans-serif}body,html{background-color:#fff;width:100%;height:100%;overflow:hidden}#app-container{width:100vw;height:100vh;position:relative}#game-container,#ui-container{width:100%;height:100%;position:absolute;top:0;left:0}#game-container{z-index:2}#ui-container{z-index:3;pointer-events:none;--harmonic-ladder-width:min(92vw, 1100px)}#vexflow-notation{pointer-events:none;z-index:4;position:absolute;font-family:Bravura,Academico,serif!important}#vexflow-notation svg,#vexflow-notation svg text,#vexflow-notation svg tspan{width:100%;height:100%;display:block;font-family:Bravura,Academico,serif!important}#vexflow-notation svg{transform-origin:0 0;transform-box:fill-box;width:100%;height:auto;transform:scale(2)}.menu-screen{opacity:0;pointer-events:none;background:#fff;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;transition:opacity .4s;display:flex;position:absolute;top:0;left:0}.menu-screen.active{opacity:1;pointer-events:auto}.menu-title{color:#000;letter-spacing:2px;margin-bottom:2rem;font-size:3.5rem}.menu-cards-container{flex-wrap:wrap;justify-content:center;align-items:stretch;gap:24px;width:min(100%,1100px);padding:0 16px;display:flex}.duo-card{flex:320px;max-width:420px}.menu-btn{text-align:center;letter-spacing:.8px;color:#fff;cursor:pointer;background-color:#f0cc00;border:2px solid #f0cc00;border-radius:12px;padding:16px 24px;font-family:Nunito,sans-serif;font-size:16px;font-weight:700;text-decoration:none;transition:filter .2s,transform .1s,box-shadow .1s;display:inline-block;position:relative;top:0;box-shadow:0 4px #ddbc02}.menu-btn:hover{filter:brightness(1.1)}.menu-btn:active{transform:translateY(4px);box-shadow:0 0 #ddbc02}:root{--bind-btn-width:100px;--bind-btn-bg:#fff;--bind-btn-color:#ffd000;--bind-btn-border:#e5e5e5;--bind-btn-box-shadow:0 4px 0 #e5e5e5;--bind-btn-radius:5px;--bind-btn-padding:8px;--bind-btn-font-weight:bold;--bind-btn-active-bg:#fff6d0;--bind-btn-active-color:#ffd000;--bind-btn-active-border:#ffd000;--bind-btn-active-box-shadow:0 4px 0 #ffd000;--bind-btn-border-radius:16px}.bind-btn{width:var(--bind-btn-width);background:var(--bind-btn-bg);color:var(--bind-btn-color);border:2px solid var(--bind-btn-border);padding:var(--bind-btn-padding);border-radius:var(--bind-btn-radius);box-shadow:var(--bind-btn-box-shadow);font-weight:var(--bind-btn-font-weight);cursor:pointer;text-transform:uppercase;transition:filter .2s,transform .1s,box-shadow .1s}.bind-btn:hover{filter:brightness(.95)}.bind-btn:active{box-shadow:0 0px 0 var(--bind-btn-border);transform:translateY(4px)}.bind-btn.binding{background:var(--bind-btn-active-bg);color:var(--bind-btn-active-color);border-color:var(--bind-btn-active-border);box-shadow:var(--bind-btn-active-box-shadow)}.bind-btn.binding:active{box-shadow:0 0px 0 var(--bind-btn-active-border);transform:translateY(4px)}.menu-btn.secondary{text-align:center;letter-spacing:.8px;color:#fff;cursor:pointer;background-color:#58cc02;border:2px solid #58cc02;border-radius:12px;padding:16px 24px;font-family:Nunito,sans-serif;font-size:16px;font-weight:700;text-decoration:none;transition:filter .2s,transform .1s,box-shadow .1s;display:inline-block;position:relative;top:0;box-shadow:0 4px #46a302}.menu-btn.secondary:hover{filter:brightness(1.1)}.menu-btn.secondary:active{transform:translateY(4px);box-shadow:0 0 #46a302}.duo-card{text-align:left;box-sizing:border-box;background-color:#fff;border:2px solid #e5e5e5;border-radius:16px;flex-direction:column;gap:20px;padding:24px;display:flex;box-shadow:0 4px #00000005}.duo-card-content{flex-direction:column;gap:6px;display:flex}.duo-card-title{color:#3c3c3c;margin:0;font-size:1.25rem;font-weight:700}.duo-card-text{color:#777;margin:0;font-size:.95rem;line-height:1.4}.duo-badge{letter-spacing:.5px;border-radius:6px;align-self:flex-start;margin-bottom:4px;padding:4px 8px;font-size:.75rem;font-weight:900}.badge-super{color:#fff;background:linear-gradient(135deg,#2bf0ab,#a526ff)}.badge-nitro{color:#fff;background-color:#ff4b4b}#app-logo{z-index:10;-webkit-user-select:none;user-select:none;cursor:pointer;opacity:1;pointer-events:auto;transform-origin:50%;width:64px;height:64px;transition:transform .2s cubic-bezier(.175,.885,.32,1.275),filter .2s,opacity .3s;display:block;position:absolute;top:25px;left:25px}#app-logo .logo-layer{object-fit:contain;-webkit-user-select:none;user-select:none;pointer-events:none;width:100%;height:100%;transition:top 80ms,transform 80ms,filter 80ms;position:absolute;left:0}#app-logo .logo-layer.top{z-index:2;top:0}#app-logo .logo-layer.bottom{z-index:1;top:6px}#app-logo:hover{filter:brightness(1.08)}#app-logo:active .logo-layer.top{transform:translateY(6px)}.settings-card{text-align:center;color:#fff;background:#fff;border:2px solid #e5e5e5;border-radius:20px;padding:40px}.settings-card h2{color:#ffd900;margin-bottom:20px}.settings-card p{color:#abb2bf;margin-bottom:30px}.hud-text{left:calc(50% - var(--harmonic-ladder-width) / 2);color:#ffae00;letter-spacing:.4px;text-align:left;z-index:6;pointer-events:none;background:#ffffffd1;border:2px solid #e5e5e5;border-radius:18px;max-width:min(260px,24vw);padding:.85rem 1.1rem;font-size:clamp(1rem,1.8vw,1.4rem);font-weight:700;transition:opacity .4s,transform .2s;position:absolute;top:calc(33% - 5rem)}.hud-text.hidden{opacity:0}#harmonic-ladder{--harmonic-ladder-width:min(92vw, 1100px);width:var(--harmonic-ladder-width);z-index:5;pointer-events:none;flex-direction:row;justify-content:space-between;align-items:center;gap:clamp(10px,1.5vw,18px);transition:opacity .4s;display:flex;position:absolute;top:33%;left:50%;transform:translate(-50%)}#harmonic-ladder.hidden{opacity:0}.ladder-rung{aspect-ratio:1;color:#00000080;background:#fff;border:2px solid #e5e5e5;border-radius:18px;justify-content:center;align-items:center;width:clamp(72px,8vw,110px);font-size:clamp(.9rem,1.2vw,1.1rem);font-weight:800;transition:filter,transform .1s,box-shadow .1s;display:flex;box-shadow:0 4px #e5e5e5}.ladder-rung.active{color:#5d4700;background:#ffeb7c;border-color:#f4c203;transform:translateY(4px);box-shadow:0 0 #ffd000}.timeattack-screen{opacity:0;pointer-events:none;z-index:1;justify-content:center;align-items:flex-start;transition:opacity .4s;display:flex;position:absolute;top:10%;left:0;right:0}.timeattack-screen.active{opacity:1}.timeattack-card{-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);background:#fffffff2;border:2px solid #cfcfcf;border-radius:32px;width:min(880px,92vw);max-width:880px;min-height:520px;padding:42px 36px 34px}.timeattack-card.success{border-color:#b7f5a5cc;box-shadow:0 24px 65px #75d27838}.timeattack-card.error{border-color:#ffb3b3cc;box-shadow:0 10px 50px #ff696938}.timeattack-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:18px;margin-bottom:24px;display:flex}.timeattack-title{color:#4b4b4b;margin:0;font-size:2rem;line-height:1.1}.timeattack-score{color:#1b1b1b;background:#fff;border:2px solid #c5c5c5;border-radius:18px;padding:14px 18px;font-size:1rem;font-weight:700}.timeattack-notation-wrapper{background:#ffffffeb;border:1px solid #ffffff0f;border-radius:22px;justify-content:center;align-items:center;width:100%;min-height:320px;padding:24px;display:flex;position:relative;overflow:hidden}.timeattack-card{position:relative}.timeattack-feedback{color:#111;text-align:center;letter-spacing:.03em;opacity:0;visibility:hidden;background:#00000014;border:2px solid #ffb3b3cc;border-radius:14px;min-width:240px;max-width:320px;padding:12px 16px;font-size:.95rem;font-weight:700;transition:opacity .2s,transform .2s,visibility .2s;position:absolute;bottom:24px;right:24px;transform:translateY(8px)}.timeattack-feedback.visible{opacity:1;visibility:visible;transform:translateY(0)}.timeattack-body{align-items:stretch;gap:24px;width:100%;display:flex}.timeattack-options-panel{z-index:9;pointer-events:auto;background:#fff;border:2px solid #e5e5e5;border-radius:24px;flex-direction:column;gap:14px;width:250px;min-width:240px;padding:22px;display:none;position:absolute;top:10%;left:calc(50% + min(440px,46vw) + 22px)}.timeattack-options-panel.active{display:flex}.timeattack-options-title{letter-spacing:.05em;text-transform:uppercase;color:#3b3b3b;font-size:.95rem;font-weight:700}.flashcard-option-button,.flashcard-option-button.bind-btn{width:100%}.flashcard-option-button:hover{filter:brightness(.95)}.flashcard-option-button:active{transform:translateY(4px);box-shadow:0 0 #e5e5e5}.timeattack-options-note{color:#6f6f6f;margin-top:4px;font-size:.92rem;line-height:1.4}.custom-note-menu-overlay{-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;pointer-events:none;z-index:10;background:#00000073;justify-content:center;align-items:center;transition:opacity .2s;display:flex;position:absolute;inset:0}.custom-note-menu-overlay.active{opacity:1;pointer-events:auto}.custom-note-menu-overlay.hidden{display:none}.custom-note-menu{background:#fffffffa;border-radius:28px;flex-direction:column;gap:18px;width:min(560px,92vw);max-height:min(82vh,720px);padding:26px;display:flex;overflow:hidden;box-shadow:0 28px 80px #00000029}.custom-note-menu-header{flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px;display:flex}.custom-note-menu-header h3{color:#2f2f2f;margin:0;font-size:1.25rem}.custom-note-menu-description{color:#7c7c7c;margin:8px 0 0;font-size:.95rem;line-height:1.4}.custom-note-menu-actions{flex-wrap:wrap;gap:12px;display:flex}.custom-note-list{flex-direction:column;gap:18px;max-height:450px;padding-right:6px;display:flex;overflow:auto}.custom-note-section{flex-direction:column;gap:12px;display:flex}.custom-note-section-label{letter-spacing:.02em;color:#3b3b3b;text-transform:uppercase;font-size:.95rem;font-weight:700}.custom-note-section-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;display:grid}.custom-note-row{color:#2c2c2c;cursor:pointer;background:#f6f8fb;border-radius:16px;align-items:center;gap:12px;padding:12px 14px;font-size:.95rem;display:flex}.custom-note-row:hover{background:#edf6ee}.custom-note-checkbox{accent-color:#58cc02;cursor:pointer;width:18px;height:18px}.menu-btn.small{padding:10px 16px;font-size:.95rem}@media (width<=1180px){.timeattack-options-panel{width:100%;max-width:360px;margin:24px auto 0;position:relative;top:auto;left:auto;transform:none}}@media (width<=940px){.timeattack-body{flex-direction:column}.timeattack-options-panel{width:100%}.custom-note-section-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (width<=640px){.custom-note-section-grid{grid-template-columns:1fr}}.valve-key-label{z-index:6;pointer-events:none;color:#ffd000;text-transform:uppercase;text-align:center;letter-spacing:.08em;white-space:nowrap;min-width:56px;box-shadow:none;background:#fff;border:2px solid #e5e5e5;border-radius:999px;padding:10px 12px;font-size:.82rem;font-weight:800;position:absolute;transform:translate(-50%)}#vexflow-notation{pointer-events:none;position:absolute;inset:0}.timeattack-footer{text-align:center;color:#111;letter-spacing:.03em;background:#00000014;border:2px solid #00000024;border-radius:18px;width:fit-content;margin-top:24px;padding:14px 18px;font-size:1rem;font-weight:800;display:inline-block}.settings-icon{color:#fff;cursor:pointer;z-index:10;pointer-events:auto;background-color:#58cc02;border:2px solid #58cc02;border-radius:16px;justify-content:center;align-items:center;width:56px;height:56px;font-size:28px;transition:filter .2s,transform .1s,box-shadow .1s;display:flex;position:absolute;top:25px;right:25px;box-shadow:0 4px #46a302}.settings-icon:hover{filter:brightness(1.1)}.settings-icon:active{transform:translateY(4px);box-shadow:0 0 #46a302}