:root{--bg:#070b16;--surface:#0c1224;--card:#111a31;--lift:#17213b;--border:#253252;--blue:#3b82f6;--cyan:#22d3ee;--green:#22c55e;--amber:#f59e0b;--red:#ef4444;--text:#f8fafc;--muted:#94a3b8;--dim:#64748b;--radius:20px;--nav:74px;color-scheme:dark}*{box-sizing:border-box}html{background:var(--bg);scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 50% -15%,#142040 0,var(--bg) 38%);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.topbar{height:64px;position:sticky;top:0;z-index:20;padding:max(10px,env(safe-area-inset-top)) 18px 8px;display:flex;align-items:center;justify-content:space-between;background:rgba(7,11,22,.88);backdrop-filter:blur(16px);border-bottom:1px solid rgba(37,50,82,.5)}.brand{display:flex;align-items:center;gap:10px;font-weight:800}.brand img{width:34px;height:34px}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(145deg,var(--blue),#1d4ed8);font-weight:800;border:2px solid rgba(255,255,255,.12);flex:0 0 auto}.avatar.large{width:58px;height:58px}.avatar.xlarge{width:82px;height:82px;font-size:1.4rem}.app-shell{max-width:980px;margin:auto;padding:22px 16px calc(var(--nav) + 32px + env(safe-area-inset-bottom));animation:pageIn .3s ease}.auth-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.bottom-nav{position:fixed;z-index:30;bottom:0;left:0;right:0;height:calc(var(--nav) + env(safe-area-inset-bottom));padding:5px 8px env(safe-area-inset-bottom);display:flex;justify-content:space-around;background:rgba(12,18,36,.94);backdrop-filter:blur(20px);border-top:1px solid var(--border)}.bottom-nav a{min-width:58px;min-height:58px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--dim);font-size:.68rem;border-radius:14px}.bottom-nav i{font-style:normal;font-size:1.25rem;line-height:1}.bottom-nav a.active{color:#fff;background:rgba(59,130,246,.13)}.bottom-nav a.active i{color:var(--cyan)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(1.65rem,6vw,2.5rem);line-height:1.1;margin-bottom:8px}h2{font-size:1.2rem}h3{font-size:1rem;margin-bottom:5px}.muted,.hero p,.page-head p{color:var(--muted)}.eyebrow,.muscle{color:var(--cyan);font-weight:750;text-transform:uppercase;letter-spacing:.09em;font-size:.68rem}.hero,.page-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}.hero{padding-top:8px}.card,.plan-card,.workout-exercise,.meal-card,.calorie-card,.chart-card,.program-day{background:linear-gradient(145deg,var(--card),#0e172b);border:1px solid var(--border);border-radius:var(--radius);padding:18px;margin-bottom:16px}.plan-card{padding:22px;position:relative;overflow:hidden}.plan-card:after{content:"";position:absolute;width:140px;height:140px;border-radius:50%;background:var(--blue);filter:blur(70px);opacity:.18;right:-30px;top:-30px;pointer-events:none}.plan-card h2{font-size:1.6rem;margin:7px 0 18px}.stats-row{display:flex;gap:18px;color:var(--muted);font-size:.78rem;margin-bottom:20px}.stats-row b{color:var(--text);display:block;font-size:1.15rem}.button{border:1px solid var(--border);background:var(--lift);color:var(--text);border-radius:13px;min-height:48px;padding:0 18px;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:10px}.button.primary{background:linear-gradient(135deg,var(--blue),#2563eb);border-color:#60a5fa;box-shadow:0 10px 25px rgba(59,130,246,.16)}.button.success{background:linear-gradient(135deg,#15803d,var(--green));border-color:#4ade80}.button.full{width:100%}.button.compact{min-height:42px;padding:0 13px;font-size:.82rem}.section-title{margin:26px 0 13px}.exercise-list,.card-list{display:grid;gap:12px}.exercise-card,.student-card,.history-card{display:flex;align-items:center;gap:13px;padding:13px;background:var(--card);border:1px solid var(--border);border-radius:17px;min-width:0}.exercise-card:hover,.student-card:hover,.history-card:hover{border-color:#3b82f6}.motion{width:70px;height:70px;border-radius:14px;background:#0b1327;display:grid;place-items:center;overflow:hidden;flex:0 0 auto}.motion img{width:100%;height:100%;object-fit:contain}.grow{flex:1;min-width:0}.exercise-card p,.exercise-card small,.student-card p{color:var(--muted);font-size:.76rem;margin:0;display:block}.resume-card{display:flex;align-items:center;gap:14px;border:1px solid #2563eb;background:linear-gradient(100deg,rgba(37,99,235,.24),var(--card));padding:17px;border-radius:17px;margin-bottom:20px}.resume-card small{display:block;color:var(--muted);margin-top:4px}.pulse,.live i{width:10px;height:10px;border-radius:50%;background:var(--green);box-shadow:0 0 0 6px rgba(34,197,94,.12);animation:pulse 1.6s infinite}.empty{text-align:center;padding:50px 22px}.empty-icon,.trophy{margin:auto auto 16px;width:70px;height:70px;display:grid;place-items:center;border-radius:50%;background:rgba(34,197,94,.14);color:var(--green);font-size:2rem}.password-alert{display:block;padding:12px 15px;margin-bottom:16px;border-radius:13px;background:rgba(245,158,11,.13);border:1px solid rgba(245,158,11,.35);color:#fcd34d;font-size:.85rem}.flash{padding:13px 15px;border-radius:13px;margin-bottom:14px;border:1px solid}.flash-success{background:rgba(34,197,94,.13);border-color:#166534}.flash-danger{background:rgba(239,68,68,.13);border-color:#991b1b}.flash-info{background:rgba(59,130,246,.13);border-color:#1d4ed8}.login-card{width:min(100%,420px);padding:30px 22px;background:rgba(17,26,49,.88);border:1px solid var(--border);border-radius:26px;text-align:center;box-shadow:0 25px 70px rgba(0,0,0,.25)}.login-logo{width:78px}.login-card h1{font-size:2.3rem;margin:10px 0 3px}.lead,.demo-note{color:var(--muted)}.stack-form{display:grid;gap:15px;text-align:left}.stack-form.narrow{max-width:560px}.stack-form label,.weight-sheet label,.chart-card label{color:var(--muted);font-size:.8rem;font-weight:650}.stack-form input,.stack-form select,.stack-form textarea,.weight-sheet input,.weight-sheet select,.chart-card select,.reps-input{display:block;width:100%;min-height:48px;margin-top:7px;border:1px solid var(--border);border-radius:12px;background:#090f20;color:var(--text);padding:0 13px;outline:none}.stack-form textarea{padding:13px;min-height:90px;resize:vertical}.stack-form input:focus,.stack-form select:focus,.stack-form textarea:focus,.weight-sheet input:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(59,130,246,.14)}.password-wrap{display:flex;position:relative}.password-wrap input{padding-right:50px}.icon-button{position:absolute;right:3px;top:10px;width:44px;height:44px;border:0;background:transparent;color:var(--muted)}.check-row{display:flex!important;align-items:center;gap:9px}.check-row input{width:20px!important;height:20px!important;min-height:0!important;margin:0!important}.demo-note{font-size:.76rem;margin:18px 0 0}.demo-note code{color:var(--cyan)}.workout-head{display:flex;align-items:center;justify-content:space-between}.live{color:var(--green);font-size:.7rem;font-weight:800;display:flex;align-items:center;gap:9px}.timer{font-variant-numeric:tabular-nums;font-size:1.25rem;font-weight:800}.progress-track{height:5px;background:var(--border);border-radius:8px;margin:10px 0 20px;overflow:hidden}.progress-track i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--blue),var(--cyan));transition:width .25s}.workout-exercise{padding:14px}.workout-exercise>header{display:flex;align-items:center;gap:12px;margin-bottom:13px}.workout-exercise h2{margin:3px 0}.coach-note{padding:12px;margin:10px 0;border-radius:12px;background:rgba(59,130,246,.09);border-left:3px solid var(--blue);color:var(--muted);font-size:.8rem}.coach-note b{color:#93c5fd;display:block;margin-bottom:3px}.set-head,.set-row{display:grid;grid-template-columns:42px 1fr 1fr 48px;align-items:center;gap:8px;text-align:center}.set-head{color:var(--dim);font-size:.65rem;padding:6px 0}.set-row{padding:8px 0;border-top:1px solid rgba(37,50,82,.55)}.value-button,.reps-input,.complete-button{height:46px;border:1px solid var(--border);border-radius:11px;background:#0a1122;color:#fff;text-align:center}.reps-input{margin:0;padding:0 5px;min-height:46px}.complete-button{font-size:1.2rem;color:var(--dim)}.set-row.done{opacity:.68}.set-row.done .complete-button{background:var(--green);border-color:#4ade80;color:#fff}.finish-card{margin-top:22px;display:grid;gap:12px}.finish-card textarea{width:100%;background:var(--card);border:1px solid var(--border);color:#fff;border-radius:13px;padding:12px;min-height:80px;margin-top:8px}.sheet-backdrop{position:fixed;z-index:49;inset:0;background:rgba(0,0,0,.58);opacity:0;pointer-events:none;transition:.2s}.sheet-backdrop.open{opacity:1;pointer-events:auto}.weight-sheet{position:fixed;z-index:50;bottom:0;left:0;right:0;max-width:600px;margin:auto;padding:10px 18px calc(24px + env(safe-area-inset-bottom));background:var(--lift);border:1px solid var(--border);border-radius:24px 24px 0 0;transform:translateY(105%);transition:.25s ease;max-height:88vh;overflow:auto}.weight-sheet.open{transform:translateY(0)}.sheet-handle{width:42px;height:5px;background:var(--dim);border-radius:10px;margin:0 auto 10px}.sheet-title{display:flex;align-items:center;justify-content:space-between}.sheet-title button{min-width:60px;min-height:44px;background:none;border:0;color:var(--cyan)}.wheel{height:210px;overflow-y:auto;scroll-snap-type:y mandatory;padding:84px 0;mask-image:linear-gradient(transparent,#000 35%,#000 65%,transparent)}.wheel button{display:block;width:100%;height:42px;scroll-snap-align:center;border:0;background:none;color:var(--muted);font-size:1.25rem}.wheel button.selected{color:#fff;font-size:1.65rem;font-weight:800}.summary-hero{text-align:center;padding:20px 0 28px}.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:11px;margin-bottom:18px}.metric{background:var(--card);border:1px solid var(--border);border-radius:15px;padding:15px}.metric span{display:block;color:var(--muted);font-size:.72rem;margin-bottom:7px}.metric b{font-size:1.2rem}.detail-motion{height:240px;border-radius:22px;background:radial-gradient(circle,#18254a,#0a1122);display:grid;place-items:center;margin-bottom:18px;overflow:hidden}.detail-motion img{height:100%;max-width:100%}.prose{line-height:1.6;color:var(--muted)}.prose h2,.prose h3{color:var(--text)}.history-line,.food-line{display:flex;align-items:center;gap:12px;border-bottom:1px solid rgba(37,50,82,.6);padding:12px 0}.history-line span,.history-line small{color:var(--muted);font-size:.75rem}.history-line b{margin-left:auto}.volume{text-align:right}.volume span{display:block;color:var(--muted);font-size:.7rem}.date-switch{display:flex;justify-content:space-between;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:7px 10px;margin-bottom:14px;text-align:center}.date-switch a{width:44px;height:44px;display:grid;place-items:center;font-size:1.6rem}.date-switch small{display:block;color:var(--muted)}.calorie-card{display:flex;align-items:center;gap:20px}.calorie-ring{--p:0;width:120px;height:120px;border-radius:50%;display:grid;place-items:center;align-content:center;flex:0 0 auto;background:radial-gradient(closest-side,var(--card) 78%,transparent 80%),conic-gradient(var(--blue) calc(var(--p)*1%),var(--border) 0)}.calorie-ring b{font-size:1.35rem}.calorie-ring span{font-size:.65rem;color:var(--muted)}.calorie-card p{font-size:.7rem;color:var(--muted)}.macro-grid{display:grid;gap:9px;margin-bottom:20px}.macro-grid>div{display:grid;grid-template-columns:1fr auto;gap:8px;font-size:.78rem}.macro-grid i{grid-column:1/-1;height:6px;border-radius:8px;background:linear-gradient(90deg,var(--c) var(--w),var(--border) 0)}.meal-card header{display:flex;justify-content:space-between}.food-line div{flex:1}.food-line span{display:block;color:var(--muted);font-size:.68rem;margin-top:3px}.food-line button{width:34px;height:34px;border:0;background:rgba(239,68,68,.1);color:#f87171;border-radius:9px}.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.tabs{display:flex;padding:4px;background:var(--surface);border:1px solid var(--border);border-radius:13px;margin-bottom:16px;overflow-x:auto}.tabs button{flex:1;min-height:42px;border:0;background:none;color:var(--muted);border-radius:10px}.tabs button.active{background:var(--lift);color:#fff}.chart-card{min-height:250px}.chart-card canvas{max-height:300px}.chart-summary{color:var(--muted);font-size:.7rem}.profile-head{text-align:center;margin-bottom:22px}.profile-head .avatar{margin:auto auto 10px}.role-badge,.status,.mini-tags span{display:inline-block;background:rgba(59,130,246,.13);color:#93c5fd;border:1px solid rgba(59,130,246,.3);padding:5px 9px;border-radius:20px;font-size:.68rem}.status.ok{background:rgba(34,197,94,.12);color:#86efac;border-color:#166534}.settings-list{background:var(--card);border:1px solid var(--border);border-radius:17px;overflow:hidden}.settings-list>a,.settings-list>div,.settings-list form{min-height:54px;padding:0 15px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.settings-list button{border:0;background:none;color:#f87171;padding:0}.mini-tags{display:flex;gap:5px;margin-top:7px}.inline-actions{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}.program-day>header{display:flex;align-items:center;justify-content:space-between}.program-exercise{display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--border)}.program-exercise>span{width:28px;height:28px;border-radius:8px;background:var(--lift);display:grid;place-items:center}.program-exercise small,.program-exercise p{display:block;color:var(--muted);margin:3px 0;font-size:.72rem}dialog{width:min(calc(100% - 24px),600px);max-height:90vh;overflow:auto;background:var(--card);color:var(--text);border:1px solid var(--border);border-radius:20px;padding:20px}dialog::backdrop{background:rgba(0,0,0,.7);backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between}.dialog-head button{width:44px;height:44px;border:0;background:var(--lift);color:#fff;border-radius:12px}.error-page{min-height:80vh;display:grid;place-items:center;align-content:center;text-align:center;padding:20px}.error-page img{width:80px}.error-page>span{font-weight:900;font-size:3.4rem;color:var(--blue);margin-top:15px}.error-page p{color:var(--muted)}.toast{position:fixed;z-index:100;left:50%;bottom:calc(var(--nav) + 18px + env(safe-area-inset-bottom));transform:translate(-50%,30px);opacity:0;background:#e2e8f0;color:#0f172a;padding:12px 17px;border-radius:12px;font-weight:700;transition:.25s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%,0)}@keyframes pageIn{from{opacity:0;transform:translateY(5px)}}@keyframes pulse{50%{box-shadow:0 0 0 9px rgba(34,197,94,0)}}
@media(min-width:800px){.app-shell{padding-left:190px}.topbar{padding-left:max(calc((100vw - 980px)/2 + 190px),190px)}.bottom-nav{left:max(0px,calc((100vw - 980px)/2));right:auto;top:64px;width:165px;height:calc(100vh - 64px);padding:20px 10px;flex-direction:column;justify-content:flex-start;gap:8px;border-top:0;border-right:1px solid var(--border)}.bottom-nav a{width:100%;flex-direction:row;justify-content:flex-start;padding:0 14px;font-size:.78rem;gap:12px}.card-list{grid-template-columns:repeat(2,minmax(0,1fr))}.exercise-list{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:360px){.app-shell{padding-left:10px;padding-right:10px}.bottom-nav a{min-width:50px}.stats-row{gap:12px}.calorie-card{align-items:flex-start}.calorie-ring{width:100px;height:100px}.form-grid{grid-template-columns:1fr}.motion{width:58px;height:58px}.set-head,.set-row{grid-template-columns:34px 1fr 1fr 44px;gap:5px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}