:root{--bg:#0d0e10;--bg-soft:#121315;--surface:#17181b;--surface-2:#1d1f22;--surface-3:#25272b;--border:#2a2c30;--border-soft:#222428;--text:#f5f5f5;--text-soft:#b4b5b8;--text-muted:#77797e;--gold:#e0b83f;--gold-hover:#edc751;--gold-soft:#332b14;--gold-border:#5b4b1d;--green:#6dd587;--green-bg:#14251a;--red:#ff7777;--red-bg:#301717;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--shadow-card:0 10px 30px rgba(0,0,0,0.18)}*{box-sizing:border-box}html{background:var(--bg);color-scheme:dark}body{margin:0;min-height:100vh;background:radial-gradient(circle at top,#16171a 0,#0d0e10 34%,#0d0e10 100%);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,select,textarea{font:inherit}button{-webkit-tap-highlight-color:transparent}a{color:inherit}::selection{background:var(--gold);color:#111}.app-shell{min-height:100vh;background:var(--bg)}.app-container{width:100%;max-width:720px;margin:0 auto;padding:18px 16px 105px}.app-container-wide{width:100%;max-width:1280px;margin:0 auto;padding:28px 24px 50px}.page-header{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-bottom:22px}.page-title{margin:0;color:var(--text);font-size:clamp(24px,7vw,34px);line-height:1.05;font-weight:750;letter-spacing:-.04em}.page-subtitle{margin-top:7px;color:var(--text-muted);font-size:14px;line-height:1.45}.section-title{margin:0 0 14px;font-size:17px;font-weight:700;letter-spacing:-.02em}.card{background:linear-gradient(180deg,var(--surface-2),var(--surface));border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);overflow:hidden}.card-inner{padding:18px}.card-soft{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-md)}.metric-card{padding:16px;background:linear-gradient(145deg,#1e2023,#17181b);border:1px solid var(--border);border-radius:var(--radius-lg)}.metric-value{font-size:26px;font-weight:800;letter-spacing:-.04em}.metric-label{margin-top:4px;color:var(--text-muted);font-size:12px}.gold,.gold-box{color:var(--gold)}.gold-box{background:var(--gold-soft);border:1px solid var(--gold-border);border-radius:var(--radius-md)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:11px 16px;border-radius:10px;border:1px solid transparent;text-decoration:none;font-size:14px;font-weight:700;cursor:pointer;transition:background .15s ease,border-color .15s ease,transform .15s ease,opacity .15s ease}.btn:active{transform:scale(.98)}.btn:disabled{cursor:not-allowed;opacity:.5}.btn-primary{background:var(--gold);color:#17130a}.btn-primary:hover{background:var(--gold-hover)}.btn-dark{background:var(--surface-3);color:var(--text);border-color:var(--border)}.btn-dark:hover{background:#2b2d31}.btn-danger{background:var(--red-bg);color:var(--red);border-color:#5a2727}.btn-full{width:100%}.input,.select,.textarea{width:100%;border:1px solid var(--border);outline:none;background:#222326;color:var(--text);border-radius:9px;padding:12px;font-size:14px;transition:border-color .15s ease,background .15s ease,box-shadow .15s ease}.input::placeholder,.textarea::placeholder{color:#66686d}.input:focus,.select:focus,.textarea:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(224,184,63,.1);background:#252629}.textarea{min-height:90px;resize:vertical}.label{display:block;margin-bottom:7px;font-size:12px;font-weight:600}.badge,.label{color:var(--text-soft)}.badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 9px;border-radius:8px;background:var(--surface-3);border:1px solid var(--border);font-size:11px;font-weight:700}.badge-gold{background:var(--gold-soft);border-color:var(--gold-border);color:var(--gold)}.success-box{border-radius:var(--radius-md);background:var(--green-bg);border:1px solid #275535;color:var(--green)}.error-box,.success-box{padding:12px 14px;font-size:14px}.error-box{border-radius:var(--radius-md);background:var(--red-bg);border:1px solid #5a2828;color:var(--red)}.tabs-row{display:flex;gap:8px;overflow-x:auto;padding-bottom:5px;scrollbar-width:none}.tabs-row::-webkit-scrollbar{display:none}.tab-button{flex:0 0 auto;padding:10px 14px;border:1px solid var(--border);border-radius:9px;background:var(--surface-2);color:var(--text-muted);text-decoration:none;font-size:13px;font-weight:650;cursor:pointer}.tab-button-active{background:var(--gold);border-color:var(--gold);color:#17130a}.divider{width:100%;height:1px;background:var(--border-soft);margin:18px 0}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.bottom-nav{position:fixed;left:50%;bottom:0;transform:translateX(-50%);z-index:50;width:100%;max-width:720px;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));padding:8px 8px calc(8px + env(
        safe-area-inset-bottom
      ));background:rgba(17,18,20,.96);backdrop-filter:blur(16px);border-top:1px solid var(--border)}.bottom-nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:54px;color:var(--text-muted);text-decoration:none;font-size:10px;border-radius:10px}.bottom-nav-icon{font-size:20px;line-height:1}.bottom-nav-item-active{color:var(--gold)}.exercise-card{background:#161719;border:1px solid var(--border);border-radius:14px;overflow:hidden}.exercise-header{padding:18px 16px}.exercise-letter{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#443316;color:var(--gold);font-size:11px;font-weight:800}.exercise-title{margin:10px 0 0;font-size:18px;font-weight:650}.previous-box{margin-top:12px;padding:10px 11px;background:#222326;border:1px solid #303136;border-radius:8px;color:var(--text-muted);font-size:12px}.set-card{padding:14px;background:#1e1f22;border:1px solid #2b2d31;border-radius:11px}.set-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.set-number{width:28px;height:28px;display:grid;place-items:center;border-radius:7px;background:#292a2e;color:var(--text-soft);font-size:12px;font-weight:700}.previous-value{color:var(--text-muted);font-size:11px;text-align:right}.previous-value strong{color:var(--text)}.video-card{position:relative;overflow:hidden;width:100%;aspect-ratio:16/9;border-radius:12px;background:#090909;border:1px solid var(--border)}.video-card img{width:100%;height:100%;object-fit:cover;display:block}.video-overlay{position:absolute;inset:0;display:grid;place-items:center;background:rgba(0,0,0,.12)}.video-play{width:54px;height:54px;display:grid;place-items:center;border-radius:50%;background:rgba(224,184,63,.95);color:#111;font-size:21px;padding-left:3px;box-shadow:0 6px 25px rgba(0,0,0,.35)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:#111214}::-webkit-scrollbar-thumb{background:#34363b;border-radius:10px}@media (min-width:900px){.app-container{padding-top:30px}.card-inner{padding:22px}}@media (max-width:430px){.app-container{padding-left:13px;padding-right:13px}.grid-3{gap:7px}.set-card{padding:12px}}