:root{--navy:#102b4e;--navy2:#071b31;--blue:#2f78c4;--pale:#eef5fb;--gold:#e7b24b;--ink:#182433;--muted:#68778a;--line:#d8e2ec;--white:#fff;--danger:#b3261e;--shadow:0 12px 35px #102b4e18}*{box-sizing:border-box}html{height:100%;background:var(--pale)}body{margin:0;min-height:100%;font:16px/1.45 system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:#f6f9fc}button,input,select{font:inherit}button{cursor:pointer}.hidden{display:none!important}.eyebrow{color:var(--blue);font-size:.76rem;font-weight:800;letter-spacing:.14em;margin:0 0 .5rem}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 70% 10%,#2f78c466,transparent 35%),linear-gradient(145deg,var(--navy2),var(--navy))}.auth-card{width:min(460px,100%);padding:36px;border-radius:24px;background:#fff;box-shadow:0 24px 70px #0005;text-align:center}.auth-card h1{margin:.3rem 0;font-size:clamp(1.7rem,5vw,2.3rem)}.crest{margin:auto;width:88px;height:88px;border-radius:50%;display:grid;place-content:center;border:4px double var(--gold);background:var(--navy);color:#fff;font-size:1.3rem;font-weight:900;line-height:1}.crest span{display:block;color:var(--gold);font-size:.75rem}.stack{display:grid;gap:16px;text-align:left;margin-top:25px}label{display:grid;gap:7px;font-weight:650;color:#34465a}input,select{width:100%;min-height:46px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:#fff;color:var(--ink)}input:focus,select:focus{outline:3px solid #2f78c433;border-color:var(--blue)}button{border:0;border-radius:10px;min-height:44px;padding:10px 16px;font-weight:750}.primary{background:var(--blue);color:#fff;box-shadow:0 5px 13px #2f78c43d}.ghost,.file-button{border:1px solid var(--line);background:#fff;color:var(--navy)}.error{color:var(--danger);min-height:1em}.app{min-height:100vh}.topbar{height:78px;padding:10px max(18px,env(safe-area-inset-right)) 10px max(18px,env(safe-area-inset-left));position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:20px;background:var(--navy);color:#fff;box-shadow:0 4px 18px #0002}.brand{display:flex;align-items:center;gap:10px;min-width:210px}.brand strong,.brand small{display:block}.brand small{opacity:.7}.mini-crest{width:47px;height:47px;border:2px solid var(--gold);border-radius:50%;display:grid;place-items:center;font-size:.8rem;font-weight:900}.tempo{margin:auto;display:flex;align-items:center;gap:12px;max-width:520px;width:100%}.tempo label{display:grid;grid-template-columns:1fr auto;gap:0 12px;color:#fff;width:100%;font-size:.75rem}.tempo input{grid-column:1/-1;min-height:20px;padding:0;accent-color:var(--gold)}.tempo output{color:var(--gold);font-weight:800}.metro-play{width:46px;height:46px;border-radius:50%;background:var(--gold);color:var(--navy);padding:0}.menu-btn{display:none}.icon-btn{background:transparent;color:inherit;font-size:1.5rem;padding:6px}.layout{display:grid;grid-template-columns:244px 1fr;min-height:calc(100vh - 78px)}.sidebar{position:sticky;top:78px;height:calc(100vh - 78px);background:var(--navy2);color:#fff;display:flex;flex-direction:column;padding:22px 13px}.sidebar nav{display:grid;gap:6px}.nav{display:flex;align-items:center;gap:14px;background:transparent;color:#c9d5e2;text-align:left;padding:12px 15px}.nav.active{background:#ffffff17;color:#fff;box-shadow:inset 3px 0 var(--gold)}.nav:hover{background:#ffffff10}.user-panel{margin-top:auto;border-top:1px solid #ffffff20;padding:18px 4px 0;display:flex;align-items:center;gap:10px}.user-panel>span{width:38px;height:38px;border-radius:50%;background:var(--blue);display:grid;place-items:center;font-weight:900}.user-panel strong,.user-panel small{display:block}.user-panel small{opacity:.6;font-size:.72rem}.user-panel button{margin-left:auto;background:transparent;color:#fff;font-size:1.2rem;padding:5px}main{padding:clamp(22px,4vw,54px);overflow:hidden}.page{display:none;max-width:1250px;margin:auto}.active-page{display:block}.hero{min-height:310px;border-radius:22px;padding:clamp(28px,5vw,60px);display:flex;align-items:center;justify-content:space-between;overflow:hidden;background:linear-gradient(120deg,var(--navy),#1b568f);color:#fff;box-shadow:var(--shadow)}.hero h2{font-size:clamp(2rem,5vw,4rem);line-height:1.02;margin:.3rem 0 1rem}.hero p:not(.eyebrow){max-width:620px;color:#d9e5f1}.hero-drum{font-size:clamp(7rem,18vw,14rem);filter:drop-shadow(0 18px 20px #0004);transform:rotate(-8deg)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:22px 0 34px}.stats article{background:#fff;padding:18px;border:1px solid var(--line);border-radius:14px;display:flex;gap:14px;align-items:center}.stats article>span{font-size:1.8rem;color:var(--blue)}.stats strong,.stats small{display:block}.stats strong{font-size:1.4rem}.stats small{color:var(--muted)}.cards,.library-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.feature{display:grid;gap:7px;text-align:left;min-height:135px;padding:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)}.feature>span{font-size:1.7rem;color:var(--blue)}.feature small{color:var(--muted)}.page-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:24px}.page-head h2{font-size:clamp(2rem,4vw,3.2rem);margin:0}.filters{display:grid;grid-template-columns:1fr 220px;gap:12px;margin-bottom:22px}.library-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow);text-align:left;padding:0}.library-card .thumb{height:155px;display:grid;place-items:center;background:linear-gradient(145deg,#dceafb,#f7fbff);font-size:4rem;color:var(--blue)}.library-card .card-body{padding:17px}.library-card strong,.library-card small{display:block}.library-card small{color:var(--muted);margin-top:6px}.pill{display:inline-block!important;margin-top:12px!important;padding:4px 8px;border-radius:99px;background:var(--pale);color:var(--blue)!important;font-size:.72rem}.empty{text-align:center;padding:70px 20px;color:var(--muted)}.empty span{font-size:4rem;color:#aac1d8}.trainer-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.panel{background:#fff;padding:24px;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow)}.pattern-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:15px 0 22px}.pattern-chip{border:1px solid var(--line);background:#f8fbfe;text-align:left}.pattern-chip.active{border-color:var(--blue);box-shadow:inset 3px 0 var(--blue)}.trainer-actions{display:flex;gap:10px;margin-top:18px}.notation{display:grid;place-content:center;text-align:center}.beats{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin:30px 0}.beat{width:48px;height:64px;border-radius:12px;background:var(--pale);display:grid;place-items:center;font-weight:900;font-size:1.25rem;border-bottom:5px solid var(--blue)}.beat.playing{background:var(--gold);transform:translateY(-5px)}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.settings-grid .panel{display:grid;align-content:start;gap:12px}.file-button{display:grid;place-items:center;min-height:44px;border-radius:10px;font-weight:750;cursor:pointer}.file-button input{display:none}.fine{font-size:.82rem;color:var(--muted)}dialog{border:0;border-radius:18px;padding:0;box-shadow:0 30px 90px #0006;max-width:min(520px,calc(100% - 24px));width:100%}dialog::backdrop{background:#071b31bb}.dialog-form{display:grid;gap:16px;padding:24px}.dialog-head,.dialog-actions,.viewer-head{display:flex;align-items:center;gap:10px}.dialog-head h2{margin:0;margin-right:auto}.dialog-actions{justify-content:flex-end}.viewer-dialog{width:min(1100px,calc(100% - 18px));max-width:none;height:min(90vh,900px)}.viewer-head{height:60px;padding:10px 14px;background:var(--navy);color:#fff}.viewer-head strong{margin-right:auto}.danger{background:var(--danger);color:#fff}.viewer-dialog #viewerBody{height:calc(100% - 60px);background:#263442}.viewer-dialog iframe,.viewer-dialog video{border:0;width:100%;height:100%}.viewer-dialog .external{height:100%;display:grid;place-content:center;text-align:center;color:#fff}.toast{position:fixed;bottom:22px;left:50%;z-index:100;transform:translate(-50%,120px);background:#102b4e;color:#fff;padding:12px 18px;border-radius:10px;transition:.25s}.toast.show{transform:translate(-50%,0)}
@media(max-width:850px){.topbar{height:auto;min-height:72px;flex-wrap:wrap}.menu-btn{display:block}.brand{min-width:0}.brand div:last-child{display:none}.tempo{order:3;flex-basis:100%}.layout{display:block}.sidebar{position:fixed;z-index:18;top:116px;bottom:0;left:0;height:auto;width:250px;transform:translateX(-105%);transition:.25s}.sidebar.open{transform:none}main{padding:24px 16px}.hero-drum{display:none}.cards,.library-grid{grid-template-columns:repeat(2,1fr)}.trainer-grid{grid-template-columns:1fr}}
@media(max-width:560px){.topbar{gap:9px}.tempo .ghost{padding:5px 10px}.stats{grid-template-columns:1fr}.cards,.library-grid,.settings-grid{grid-template-columns:1fr}.filters{grid-template-columns:1fr}.page-head{align-items:start;gap:12px}.page-head h2{font-size:2rem}.hero{padding:30px 22px}.hero h2{font-size:2.35rem}.pattern-list{grid-template-columns:1fr}.viewer-dialog{height:94vh}.beat{width:39px;height:55px}}
@media(display-mode:standalone){body{padding-top:env(safe-area-inset-top)}.topbar{top:env(safe-area-inset-top)}}