:root{--bg: #0f172a;--bg-card: #1e293b;--bg-raised: #334155;--text: #f1f5f9;--text-dim: #94a3b8;--accent: #38bdf8;--accent-strong: #0284c7;--good: #4ade80;--warn: #fbbf24;--bad: #f87171;--radius: 14px;--nav-h: 64px;color-scheme:dark}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-tap-highlight-color:transparent;overscroll-behavior-y:none}button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}input,select{font:inherit;color:var(--text);background:var(--bg);border:1px solid var(--bg-raised);border-radius:10px;padding:10px 12px;min-height:44px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px}.app{display:flex;flex-direction:column;min-height:100%}.page{flex:1;padding:16px;padding-bottom:calc(var(--nav-h) + env(safe-area-inset-bottom) + 16px);max-width:720px;width:100%;margin:0 auto}.page.wide{max-width:1100px}.page-title{font-size:1.4rem;font-weight:700;margin-bottom:14px}.muted{color:var(--text-dim)}.small{font-size:.85rem}.center{text-align:center}.row{display:flex;align-items:center;gap:10px}.row.between{justify-content:space-between}.wrap{flex-wrap:wrap}.grow{flex:1}.mt{margin-top:14px}.card{background:var(--bg-card);border-radius:var(--radius);padding:16px;margin-bottom:12px}.card-title{font-weight:600;margin-bottom:8px}.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stat{background:var(--bg-card);border-radius:var(--radius);padding:14px;text-align:center}.stat .value{font-size:1.5rem;font-weight:700}.stat .label{color:var(--text-dim);font-size:.8rem;margin-top:2px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 20px;border-radius:12px;background:var(--bg-raised);font-weight:600;font-size:1rem;transition:filter .15s}.btn:active{filter:brightness(1.25)}.btn.primary{background:var(--accent-strong)}.btn.good{background:#15803d}.btn.danger{background:#991b1b}.btn.ghost{background:transparent;border:1px solid var(--bg-raised)}.btn.block{display:flex;width:100%}.btn.xl{min-height:72px;font-size:1.25rem;border-radius:16px}.btn.sm{min-height:36px;padding:6px 12px;font-size:.85rem;border-radius:8px}.btn:disabled{opacity:.45;cursor:default}.nav{position:fixed;bottom:0;left:0;right:0;height:calc(var(--nav-h) + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);display:flex;background:#0f172af5;border-top:1px solid var(--bg-raised);z-index:50}.nav a{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:var(--text-dim);text-decoration:none;font-size:.68rem}.nav a.active{color:var(--accent)}.nav a .icon{font-size:1.3rem}.field{margin-bottom:14px}.field label{display:block;color:var(--text-dim);font-size:.85rem;margin-bottom:6px}.field input,.field select{width:100%}.form-row{display:flex;gap:10px}.form-row .field{flex:1}.list-item{display:flex;align-items:center;gap:12px;background:var(--bg-card);border-radius:var(--radius);padding:14px;margin-bottom:8px}.badge{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--bg-raised);color:var(--text-dim);font-size:.75rem;font-weight:600}.badge.accent{background:var(--accent-strong);color:#fff}.session-view{min-height:100dvh;display:flex;flex-direction:column;padding:20px;padding-bottom:calc(env(safe-area-inset-bottom) + 20px)}.session-view .topbar{display:flex;justify-content:space-between;color:var(--text-dim);font-size:.9rem;margin-bottom:8px}.exercise-card{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:8px}.exercise-card h1{font-size:clamp(2rem,9vw,3.5rem);font-weight:800;line-height:1.1}.exercise-card .type{font-size:1.1rem}.exercise-card .progress{color:var(--text-dim)}.set-inputs{display:flex;gap:10px;width:100%;margin:18px 0 12px;align-items:flex-end}.set-inputs .field{flex:1;margin:0;text-align:center;min-width:0}.set-inputs .field label{white-space:nowrap}.set-inputs input{width:100%;font-size:1.6rem;font-weight:700;text-align:center;padding:14px 6px}.last-set{color:var(--text-dim);font-size:.85rem}.countdown{font-size:clamp(4rem,25vw,9rem);font-weight:800;font-variant-numeric:tabular-nums;line-height:1}.countdown-label{color:var(--text-dim);letter-spacing:.15em;text-transform:uppercase;font-size:.9rem}.next-preview{background:var(--bg-card);border-radius:var(--radius);padding:14px;text-align:center;margin-bottom:14px;width:100%}.next-preview .name{font-size:1.5rem;font-weight:700}.timer-actions{display:flex;gap:10px;width:100%}.error-box{background:#7f1d1d;border-radius:10px;padding:12px 14px;margin-bottom:12px;font-size:.9rem}.notice-box{background:#14532d;border-radius:10px;padding:12px 14px;margin-bottom:12px;font-size:.9rem}.splash{min-height:100dvh;display:flex;align-items:center;justify-content:center;color:var(--text-dim)}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:.9rem}th{text-align:left;color:var(--text-dim);font-weight:600;padding:8px}td{padding:8px;border-top:1px solid var(--bg-raised)}tr{vertical-align:top}.login-wrap{max-width:380px;margin:10vh auto 0}.logo{font-size:2.2rem;font-weight:800;text-align:center;margin-bottom:6px}.logo span{color:var(--accent)}.chart-card{background:var(--bg-card);border-radius:var(--radius);padding:16px;margin-bottom:14px}.chart-card h3{font-size:.95rem;margin-bottom:10px}.chart-grid{display:grid;gap:14px}@media(min-width:768px){.app{flex-direction:row}.nav{position:static;order:-1;flex-direction:column;width:200px;height:auto;padding:24px 10px;border-top:none;border-right:1px solid var(--bg-raised);flex-shrink:0;gap:4px}.nav a{flex:none;flex-direction:row;justify-content:flex-start;padding:10px 14px;font-size:.9rem;border-radius:10px;width:100%}.nav a.active{background:var(--bg-card)}.nav a .icon{font-size:1.1rem;width:28px}.page{padding:24px 32px 32px}.stat-grid{grid-template-columns:repeat(4,1fr)}.chart-grid{grid-template-columns:1fr 1fr}}