:root{--bg-primary:#050a12;--bg-panel:#0b1220;--bg-panel-hover:#111a2e;--accent:#22d3ee;--accent-dim:#22d3ee26;--accent-glow:#22d3ee66;--text-primary:#f5f8fc;--text-secondary:#9fb0c7;--border:#1a2540;--success:#34d399;--warning:#fbbf24;--danger:#f87171;--radius:12px;--radius-sm:8px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;min-height:100vh;font-family:Inter,sans-serif}button{cursor:pointer;border:none;font-family:inherit}input{border:none;outline:none;font-family:inherit}a{color:var(--accent);text-decoration:none}.auth-page{justify-content:center;align-items:center;min-height:100vh;padding:20px;display:flex}.auth-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:400px;padding:40px}.auth-logo{text-align:center;margin-bottom:32px}.auth-logo h1{background:linear-gradient(135deg, var(--text-primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-top:12px;font-size:28px;font-weight:800}.auth-logo p{color:var(--text-secondary);margin-top:8px;font-size:14px}.auth-tabs{background:var(--bg-primary);border-radius:var(--radius-sm);gap:8px;margin-bottom:28px;padding:4px;display:flex}.auth-tab{color:var(--text-secondary);background:0 0;border-radius:6px;flex:1;padding:10px;font-size:14px;font-weight:600;transition:all .2s}.auth-tab.active{background:var(--accent-dim);color:var(--accent)}.auth-form{flex-direction:column;gap:16px;display:flex}.input-group{align-items:center;display:flex;position:relative}.input-icon{color:var(--text-secondary);pointer-events:none;position:absolute;left:14px}.input-group input{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);padding:14px 14px 14px 44px;font-size:15px;transition:border-color .2s}.input-group input::placeholder{color:var(--text-secondary)}.input-group input:focus{border-color:var(--accent)}.auth-error{color:var(--danger);text-align:center;background:#f871711a;border-radius:6px;padding:10px;font-size:13px}.auth-submit{background:var(--accent);color:var(--bg-primary);border-radius:var(--radius-sm);justify-content:center;align-items:center;gap:8px;margin-top:8px;padding:14px;font-size:15px;font-weight:700;transition:all .2s;display:flex}.auth-submit:hover:not(:disabled){box-shadow:0 0 20px var(--accent-glow);background:#06b6d4}.auth-submit:disabled{opacity:.7;cursor:not-allowed}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@media (width<=480px){.auth-card{padding:28px 20px}.auth-logo h1{font-size:24px}}.dashboard{min-height:100vh;padding-bottom:40px}.dashboard-header{background:var(--bg-panel);border-bottom:1px solid var(--border);z-index:10;justify-content:space-between;align-items:center;padding:16px 24px;display:flex;position:sticky;top:0}.header-brand{color:var(--text-primary);align-items:center;gap:10px;font-size:20px;font-weight:800;display:flex}.header-actions{gap:8px;display:flex}.history-btn,.logout-btn{color:var(--text-secondary);border-radius:var(--radius-sm);background:0 0;align-items:center;gap:8px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .2s;display:flex}.history-btn:hover,.logout-btn:hover{background:var(--bg-primary);color:var(--text-primary)}.dashboard-content{flex-direction:column;gap:20px;max-width:600px;margin:0 auto;padding:24px;display:flex}.error-state{text-align:center;color:var(--danger);padding:40px 20px;font-size:16px}.retry-btn{background:var(--accent-dim);color:var(--accent);border-radius:var(--radius-sm);align-self:center;padding:12px 24px;font-size:14px;font-weight:600}.level-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:28px}.level-info{align-items:center;gap:24px;margin-bottom:24px;display:flex}.level-badge{background:linear-gradient(135deg, var(--accent-dim), transparent);border:2px solid var(--accent);border-radius:50%;flex-direction:column;justify-content:center;align-items:center;width:80px;height:80px;display:flex}.level-number{color:var(--accent);font-size:32px;font-weight:800;line-height:1}.level-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;font-size:11px;font-weight:700}.rank-section{flex-direction:column;gap:4px;display:flex}.rank-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:1px;font-size:13px}.rank-value{color:var(--accent);font-size:40px;font-weight:800;line-height:1}.xp-bar-container{flex-direction:column;gap:10px;display:flex}.xp-bar-header{color:var(--text-secondary);justify-content:space-between;font-size:13px;display:flex}.xp-bar{background:var(--bg-primary);border-radius:6px;height:12px;overflow:hidden}.xp-bar-fill{background:linear-gradient(90deg, var(--accent), #06b6d4);height:100%;box-shadow:0 0 12px var(--accent-glow);border-radius:6px;transition:width .5s}.quest-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.quest-header,.weekly-header{align-items:center;gap:10px;margin-bottom:20px;display:flex}.quest-header h2,.weekly-header h2{font-size:18px;font-weight:700}.quest-body{justify-content:space-between;align-items:center;display:flex}.quest-info{flex-direction:column;gap:6px;display:flex}.quest-title{color:var(--text-primary);font-size:16px;font-weight:600}.quest-reward{color:var(--accent);font-size:14px;font-weight:600}.quest-completed,.quest-pending{align-items:center;gap:8px;font-size:14px;font-weight:600;display:flex}.quest-completed{color:var(--success)}.quest-pending{color:var(--text-secondary)}.quest-loading{justify-content:center;padding:20px;display:flex}.weekly-progress{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.weekly-body{flex-direction:column;gap:12px;display:flex}.weekly-count{color:var(--text-primary);font-size:28px;font-weight:800}.weekly-bar{background:var(--bg-primary);border-radius:5px;height:10px;overflow:hidden}.weekly-bar-fill{background:linear-gradient(90deg, var(--success), #10b981);border-radius:5px;height:100%;transition:width .5s}.start-workout-btn{background:linear-gradient(135deg, var(--accent), #06b6d4);width:100%;color:var(--bg-primary);border-radius:var(--radius);text-transform:uppercase;letter-spacing:1px;justify-content:center;align-items:center;gap:12px;padding:20px;font-size:18px;font-weight:800;transition:all .2s;display:flex}.start-workout-btn:hover{box-shadow:0 0 30px var(--accent-glow);transform:translateY(-2px)}.loading-screen{justify-content:center;align-items:center;min-height:100vh;display:flex}.loading-spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:1s linear infinite spin}@media (width<=600px){.level-info{text-align:center;flex-direction:column}.dashboard-content{padding:16px}.dashboard-header{padding:12px 16px}.header-brand span{display:none}}.workout-page{min-height:100vh;padding-bottom:40px}.workout-header{background:var(--bg-panel);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:16px;padding:16px 24px;display:flex;position:sticky;top:0}.back-btn{background:var(--bg-primary);width:40px;height:40px;color:var(--text-primary);border-radius:var(--radius-sm);justify-content:center;align-items:center;transition:background .2s;display:flex}.back-btn:hover{background:var(--border)}.workout-header h1{font-size:20px;font-weight:700}.workout-content{flex-direction:column;gap:20px;max-width:600px;margin:0 auto;padding:24px;display:flex}.add-exercise-card,.sets-list-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:24px}.add-exercise-card h2,.sets-list-card h2{margin-bottom:20px;font-size:16px;font-weight:700}.exercise-form{flex-direction:column;gap:16px;display:flex}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.form-group{flex-direction:column;gap:8px;display:flex}.form-group label{color:var(--text-secondary);font-size:13px;font-weight:500}.form-group select,.form-group input{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);padding:12px 14px;font-family:inherit;font-size:15px;transition:border-color .2s}.form-group select:focus,.form-group input:focus{border-color:var(--accent)}.form-group select{cursor:pointer}.add-btn{background:var(--accent-dim);color:var(--accent);border-radius:var(--radius-sm);justify-content:center;align-items:center;gap:8px;padding:12px;font-size:15px;font-weight:600;transition:all .2s;display:flex}.add-btn:hover{background:var(--accent);color:var(--bg-primary)}.empty-message{color:var(--text-secondary);text-align:center;padding:20px;font-size:14px}.sets-list{flex-direction:column;gap:8px;list-style:none;display:flex}.set-item{background:var(--bg-primary);border-radius:var(--radius-sm);justify-content:space-between;align-items:center;padding:14px 16px;display:flex}.set-info{flex-direction:column;gap:4px;display:flex}.set-name{color:var(--text-primary);font-weight:600}.set-details{color:var(--text-secondary);font-size:13px}.remove-btn{width:36px;height:36px;color:var(--text-secondary);background:0 0;border-radius:6px;justify-content:center;align-items:center;transition:all .2s;display:flex}.remove-btn:hover{color:var(--danger);background:#f871711a}.workout-error{color:var(--danger);text-align:center;border-radius:var(--radius-sm);background:#f871711a;padding:12px;font-size:14px}.finish-btn{background:linear-gradient(135deg, var(--accent), #06b6d4);width:100%;color:var(--bg-primary);border-radius:var(--radius);text-transform:uppercase;letter-spacing:.5px;justify-content:center;align-items:center;gap:10px;padding:18px;font-size:16px;font-weight:800;transition:all .2s;display:flex}.finish-btn:hover:not(:disabled){box-shadow:0 0 24px var(--accent-glow);transform:translateY(-2px)}.finish-btn:disabled{opacity:.7;cursor:not-allowed}.timer-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.timer-display{align-items:center;gap:12px;display:flex}.timer-value{color:var(--text-primary);font-variant-numeric:tabular-nums;font-size:36px;font-weight:800}.timer-toggle{background:var(--accent-dim);color:var(--accent);border-radius:var(--radius-sm);align-items:center;gap:8px;padding:10px 18px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.timer-toggle:hover{background:var(--accent);color:var(--bg-primary)}@media (width<=480px){.timer-card{flex-direction:column;align-items:flex-start;gap:14px;padding:16px}.timer-value{font-size:32px}.workout-header h1{font-size:17px}}.history-page{min-height:100vh;padding-bottom:40px}.history-header{background:var(--bg-panel);border-bottom:1px solid var(--border);z-index:10;align-items:center;gap:16px;padding:16px 24px;display:flex;position:sticky;top:0}.history-header .back-btn{background:var(--bg-primary);width:40px;height:40px;color:var(--text-primary);border-radius:var(--radius-sm);justify-content:center;align-items:center;display:flex}.history-header h1{font-size:20px;font-weight:700}.history-content{max-width:600px;margin:0 auto;padding:24px 16px}.history-loading{justify-content:center;padding:60px 0;display:flex}.spinner{animation:1s linear infinite spin}.history-error{text-align:center;color:var(--danger,#ef4444);padding:40px 20px}.history-empty{color:var(--text-secondary);text-align:center;flex-direction:column;align-items:center;gap:16px;padding:60px 20px;display:flex}.history-empty p{font-size:16px}.start-first-btn{background:var(--accent);color:var(--bg-primary);border-radius:var(--radius-sm);padding:12px 24px;font-size:15px;font-weight:700}.workout-list{flex-direction:column;gap:12px;list-style:none;display:flex}.workout-item{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px 20px}.workout-item-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px;display:flex}.workout-date{color:var(--text-primary);font-size:14px;font-weight:600}.workout-duration{color:var(--text-secondary);align-items:center;gap:6px;font-size:13px;display:flex}.workout-sets{flex-direction:column;gap:6px;list-style:none;display:flex}.workout-set-line{color:var(--text-secondary);align-items:center;gap:8px;font-size:14px;display:flex}.workout-set-line svg{color:var(--accent);flex-shrink:0}.set-reps{color:var(--text-primary);margin-left:auto;font-weight:600}.workout-no-sets{color:var(--text-secondary);font-size:13px;font-style:italic}@media (width<=600px){.history-header{padding:12px 16px}}.section-title{color:var(--text-primary);align-items:center;gap:8px;margin:0 0 12px;font-size:16px;font-weight:700;display:flex}.section-title svg{color:var(--accent)}.workouts-title{margin-top:24px}.achievements-list{flex-direction:column;gap:8px;list-style:none;display:flex}.achievement-item{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);align-items:center;gap:14px;padding:14px 16px;display:flex}.achievement-item.locked{opacity:.55}.achievement-icon{background:var(--bg-primary);border-radius:var(--radius-sm);width:38px;height:38px;color:var(--accent);flex-shrink:0;justify-content:center;align-items:center;display:flex}.achievement-item.locked .achievement-icon{color:var(--text-secondary)}.achievement-info{flex-direction:column;gap:2px;min-width:0;display:flex}.achievement-title{color:var(--text-primary);font-size:14px;font-weight:700}.achievement-desc{color:var(--text-secondary);font-size:12px}.achievement-xp{color:var(--accent);white-space:nowrap;margin-left:auto;font-size:13px;font-weight:700}.onboarding-screen{justify-content:center;align-items:center;min-height:100vh;padding:24px 16px;display:flex}.onboarding-spinner{border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:40px;height:40px;animation:1s linear infinite ob-spin}@keyframes ob-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.onboarding-card{background:var(--bg-panel);border:1px solid var(--border);border-radius:var(--radius);flex-direction:column;gap:20px;width:100%;max-width:460px;padding:32px 28px;display:flex}.onboarding-progress{justify-content:center;gap:8px;display:flex}.progress-dot{background:var(--border);border-radius:50%;width:8px;height:8px;transition:all .3s}.progress-dot.active{background:var(--accent);box-shadow:0 0 8px var(--accent-glow)}.onboarding-icon{background:var(--accent-dim);width:64px;height:64px;color:var(--accent);border-radius:50%;justify-content:center;align-self:center;align-items:center;display:flex}.onboarding-card h1{text-align:center;margin:0;font-size:22px;font-weight:700}.onboarding-input{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);width:100%;color:var(--text-primary);outline:none;padding:14px 16px;font-size:16px;transition:border-color .2s}.onboarding-input:focus{border-color:var(--accent)}.goal-options{flex-direction:column;gap:10px;display:flex}.goal-option{background:var(--bg-primary);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);text-align:left;align-items:center;gap:14px;padding:14px 18px;transition:all .2s;display:flex}.goal-option:hover{border-color:var(--accent)}.goal-option.selected{border-color:var(--accent);background:var(--accent-dim)}.goal-number{color:var(--accent);min-width:32px;font-size:24px;font-weight:800}.goal-label{font-size:15px}.onboarding-error{text-align:center;color:var(--danger,#ef4444);font-size:14px}.onboarding-actions{justify-content:space-between;gap:12px;margin-top:4px;display:flex}.onboarding-back,.onboarding-next{border-radius:var(--radius-sm);align-items:center;gap:8px;padding:12px 22px;font-size:15px;font-weight:700;transition:all .2s;display:flex}.onboarding-back{background:var(--bg-primary);color:var(--text-secondary)}.onboarding-back:hover{color:var(--text-primary)}.onboarding-next{background:var(--accent);color:var(--bg-primary);margin-left:auto}.onboarding-next:hover:not(:disabled){box-shadow:0 0 16px var(--accent-glow)}.onboarding-next:disabled{opacity:.7}.onboarding-spin{animation:1s linear infinite ob-spin}@media (width<=480px){.onboarding-card{padding:24px 18px}.onboarding-card h1{font-size:19px}.onboarding-actions{flex-direction:row}.onboarding-next,.onboarding-back{padding:12px 16px;font-size:14px}}