:root{--surface-0: #12141C;--surface-1: #1A1D28;--surface-2: #252A3A;--surface-3: #323849;--surface-4: #3F4658;--border-subtle: rgba(208, 225, 249, .1);--border-default: rgba(208, 225, 249, .18);--border-strong: rgba(208, 225, 249, .28);--text-primary: #E8F0FB;--text-secondary: #A8BACB;--text-tertiary: #6B7A8F;--text-disabled: #4A5668;--accent-primary: #5B8DEF;--accent-primary-hover: #7AA3F2;--accent-primary-soft: rgba(91, 141, 239, .12);--accent-success: #4ADE80;--accent-success-soft: rgba(74, 222, 128, .12);--accent-warning: #FBBF24;--accent-warning-soft: rgba(251, 191, 36, .12);--accent-danger: #F87171;--accent-danger-soft: rgba(248, 113, 113, .12);--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-8: 32px;--space-10: 40px;--space-12: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-2xl: 24px;--radius-full: 9999px;--font-xs: 11px;--font-sm: 13px;--font-base: 15px;--font-md: 17px;--font-lg: 20px;--font-xl: 24px;--font-2xl: 32px;--font-3xl: 40px;--font-weight-regular: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-tight: 1.2;--line-normal: 1.5;--line-relaxed: 1.65;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .25);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .35);--shadow-glow-primary: 0 0 0 1px rgba(91, 141, 239, .3), 0 4px 16px rgba(91, 141, 239, .15);--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease}body{font-family:-apple-system,BlinkMacSystemFont,Inter,Segoe UI,Helvetica,Arial,sans-serif;background:var(--surface-0);color:var(--text-primary);font-size:var(--font-base);line-height:var(--line-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;min-height:100dvh;overflow-x:hidden;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}.card{background:var(--surface-2);border:1px solid var(--border-subtle);border-radius:var(--radius-xl);padding:var(--space-5);margin-bottom:var(--space-4);box-shadow:var(--shadow-md)}.card-elevated{background:var(--surface-3);border-color:var(--border-default)}.card-hero{background:linear-gradient(135deg,var(--surface-2) 0%,var(--surface-3) 100%);border:1px solid var(--border-default);border-radius:var(--radius-2xl);padding:var(--space-6);margin-bottom:var(--space-5);box-shadow:var(--shadow-lg)}.input{width:100%;background:var(--surface-3);border:1px solid var(--border-default);border-radius:var(--radius-md);padding:var(--space-3) var(--space-4);color:var(--text-primary);font-size:var(--font-base);font-family:inherit;transition:border-color var(--transition-base),background var(--transition-base);-webkit-appearance:none}.input::placeholder{color:var(--text-tertiary)}.input:focus{outline:none;border-color:var(--accent-primary);background:var(--surface-4)}.card .input{background:var(--surface-4)}@supports (-webkit-touch-callout: none){.input,input:not([type=checkbox]):not([type=radio]),select,textarea{font-size:16px}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-5);border-radius:var(--radius-md);font-size:var(--font-base);font-weight:var(--font-weight-semibold);font-family:inherit;cursor:pointer;border:1px solid transparent;transition:all var(--transition-base);min-height:44px}.btn-primary:hover{background:var(--accent-primary-hover);transform:translateY(-1px);box-shadow:var(--shadow-glow-primary)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{background:var(--surface-3);color:var(--text-disabled);cursor:not-allowed;transform:none;box-shadow:none}.btn-secondary{background:transparent;border-color:var(--border-default);color:var(--text-secondary)}.btn-secondary:hover{border-color:var(--border-strong);color:var(--text-primary);background:var(--surface-3)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--surface-3);color:var(--text-primary)}.btn-danger{background:var(--accent-danger-soft);border-color:#f871714d;color:var(--accent-danger)}.btn-danger:hover{background:#f8717133}.btn-sm{padding:var(--space-2) var(--space-3);font-size:var(--font-sm);min-height:36px}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-tertiary{color:var(--text-tertiary)}.label{color:var(--text-tertiary);font-size:var(--font-sm);font-weight:var(--font-weight-medium);text-transform:none;letter-spacing:.01em;margin-bottom:var(--space-2);display:block}.label-upper{text-transform:uppercase;font-size:var(--font-xs);letter-spacing:.08em}.h-display{font-size:var(--font-3xl);font-weight:var(--font-weight-bold);line-height:var(--line-tight);letter-spacing:-.02em}.h-hero{font-size:var(--font-2xl);font-weight:var(--font-weight-bold);line-height:var(--line-tight);letter-spacing:-.01em}.h-page{font-size:var(--font-xl);font-weight:var(--font-weight-bold);line-height:var(--line-tight)}.h-section{font-size:var(--font-lg);font-weight:var(--font-weight-semibold)}.h-card{font-size:var(--font-md);font-weight:var(--font-weight-semibold)}.error-msg{background:var(--accent-danger-soft);border:1px solid rgba(248,113,113,.3);color:var(--accent-danger);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-sm);margin-bottom:var(--space-4)}.success-msg{background:var(--accent-success-soft);border:1px solid rgba(74,222,128,.3);color:var(--accent-success);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-sm);margin-bottom:var(--space-4)}.warning-msg{background:var(--accent-warning-soft);border:1px solid rgba(251,191,36,.3);color:var(--accent-warning);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);font-size:var(--font-sm);margin-bottom:var(--space-4)}#root{max-width:600px;margin:0 auto;padding:var(--space-4) var(--space-4) var(--space-12);overflow-x:hidden}.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-4);padding-top:var(--space-5);margin-top:var(--space-5);border-top:1px solid var(--border-subtle)}.stat-item{display:flex;flex-direction:column;align-items:center;gap:var(--space-1);text-align:center}.stat-value{font-size:var(--font-lg);font-weight:var(--font-weight-bold);color:var(--text-primary);line-height:1}.stat-value-hero{font-size:var(--font-2xl);font-weight:var(--font-weight-bold);color:var(--text-primary);line-height:1;letter-spacing:-.02em}.stat-label{font-size:var(--font-xs);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;font-weight:var(--font-weight-medium)}.stat-value.is-positive{color:var(--accent-success)}.stat-value.is-warning{color:var(--accent-warning)}.stat-value.is-danger{color:var(--accent-danger)}:root{color-scheme:dark}body{margin:0;min-width:320px;min-height:100vh}*{margin:0;padding:0;box-sizing:border-box}html{background:var(--surface-0);-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--surface-0);color:var(--text-primary);min-height:100vh;min-height:100dvh;overflow-x:hidden;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);padding-left:env(safe-area-inset-left,0px);padding-right:env(safe-area-inset-right,0px)}input:not([type=checkbox]):not([type=radio]),select,textarea{background-color:var(--surface-0);color:var(--text-primary);-webkit-appearance:none;font-family:inherit}@supports (-webkit-touch-callout: none){input:not([type=checkbox]):not([type=radio]),select,textarea{font-size:16px}}input[type=checkbox],input[type=radio]{-webkit-appearance:auto;appearance:auto}#root{max-width:600px;margin:0 auto;padding:16px 16px 80px;overflow-x:hidden}.loading{display:flex;align-items:center;justify-content:center;min-height:50vh;color:var(--text-tertiary);font-size:16px}.card{background:var(--surface-2);border:1px solid var(--border-default);border-radius:var(--radius-xl);padding:var(--space-5);margin-bottom:var(--space-4);box-shadow:var(--shadow-md)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:12px;font-size:15px;font-weight:600;cursor:pointer;border:none;transition:background .2s,opacity .2s}.btn-primary{background:var(--accent-primary);color:#fff}.btn-primary:hover{background:var(--accent-primary-hover)}.btn-primary:disabled{background:var(--surface-3);color:var(--text-disabled);cursor:not-allowed}.btn-secondary{background:transparent;border:1.5px solid var(--accent-primary);color:var(--text-tertiary)}.btn-secondary:hover{border-color:var(--text-primary);color:var(--text-primary)}.btn-danger{background:#f8717126;border:1px solid rgba(248,113,113,.4);color:var(--accent-danger)}.btn-danger:hover{background:#f8717140}.btn-sm{padding:7px 14px;font-size:13px;border-radius:9px}.btn-full{width:100%}.label{color:var(--text-tertiary);font-size:13px;margin-bottom:8px;font-weight:500}.error-msg{background:#f8717126;border:1px solid rgba(248,113,113,.4);color:var(--accent-danger);padding:12px 16px;border-radius:12px;font-size:14px;margin-bottom:16px}.success-msg{background:#4ade8026;border:1px solid rgba(74,222,128,.4);color:var(--accent-success);padding:12px 16px;border-radius:12px;font-size:14px;margin-bottom:16px}.auth-page{display:flex;align-items:center;justify-content:center;min-height:80vh;padding-bottom:0}.auth-card{background:var(--surface-2);border-radius:18px;padding:32px;width:100%;max-width:400px;box-shadow:0 3px 10px #00000040}.auth-card h1{font-size:24px;font-weight:600;color:var(--text-primary);margin-bottom:24px;text-align:center}.auth-card form{display:flex;flex-direction:column;gap:16px}.auth-card 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var(--accent-primary);border-radius:10px;padding:14px;margin:8px 0}.checkbox-label{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-tertiary);cursor:pointer;line-height:1.45}.checkbox-label input[type=checkbox]{width:18px;height:18px;margin-top:1px;flex-shrink:0;accent-color:var(--accent-primary)}.checkbox-label a{color:var(--accent-primary)}.checkbox-hint{font-size:12px;color:var(--accent-warning);text-align:center;margin-top:8px}.auth-links{margin-top:20px;display:flex;flex-direction:column;align-items:center;gap:8px}.auth-links a{color:var(--accent-primary);font-size:14px;text-decoration:none}.auth-links a:hover{text-decoration:underline}.demo-divider{display:flex;align-items:center;margin:20px 0 16px;gap:12px}.demo-divider:before,.demo-divider:after{content:"";flex:1;height:1px;background:#d0e1f94d}.demo-divider span{color:var(--text-tertiary);font-size:13px;text-transform:uppercase;letter-spacing:.5px}.btn-demo{width:100%;padding:12px 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var(--accent-primary);display:flex;align-items:center;justify-content:center;color:var(--text-primary);font-weight:var(--font-weight-semibold);font-size:var(--font-sm);flex-shrink:0}.page-content-header{margin-bottom:var(--space-5)}.page-header{display:flex;justify-content:space-between;align-items:center;padding:12px 0 20px}.page-title{font-size:22px;font-weight:700;color:var(--text-primary)}.page-subtitle{font-size:14px;color:var(--text-tertiary);margin-top:2px}.rehab-active-banner{background:#f8a05514;border:1px solid rgba(248,160,85,.2);border-radius:var(--radius-sm);padding:var(--space-2) var(--space-3);font-size:var(--font-sm);color:#f8a055;margin-bottom:var(--space-4)}.split-picker{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}.split-picker-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.split-picker select,.split-picker input[type=date]{width:100%;padding:12px 14px;border:1px solid var(--border-default);border-radius:12px;font-size:15px;background:var(--surface-0);color:var(--text-primary);outline:none;transition:border-color var(--transition-fast)}.split-picker select:focus,.split-picker input[type=date]:focus{border-color:var(--accent-primary)}.exercise-list{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}.exercise-list-horizontal{flex-direction:row;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:4px;margin-bottom:8px;scrollbar-width:thin;scrollbar-color:rgba(91,141,239,.5) transparent}.exercise-list-horizontal::-webkit-scrollbar{height:4px}.exercise-list-horizontal::-webkit-scrollbar-thumb{background:#5b8def80;border-radius:999px}.exercise-list-horizontal .exercise-step{flex-shrink:0;min-width:110px;max-width:160px}.exercise-list-horizontal 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12px;gap:10px}.exercise-step-workout:hover:not(.active):not(.done){border-color:var(--border-strong);background:var(--surface-4)}.exercise-step-preview:hover{border-color:var(--border-default);background:var(--surface-3)}.exercise-step.active{background:var(--accent-primary-soft);border-color:var(--accent-primary);color:var(--accent-primary)}.exercise-step.active .step-name{color:var(--accent-primary)}.exercise-step.done{background:var(--surface-2);border-color:var(--border-subtle);color:var(--text-tertiary);opacity:.7}.exercise-step.done .step-name{color:var(--text-tertiary)}.step-indicator{width:24px;height:24px;border-radius:50%;background:var(--surface-4);border:1.5px solid var(--border-default);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:var(--text-tertiary);flex-shrink:0;margin-top:2px}.exercise-step.active .step-indicator{background:var(--accent-primary);border-color:var(--accent-primary);color:#fff}.exercise-step.done 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var(--accent-primary);color:var(--accent-primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}.install-icon-inline{display:inline-flex;vertical-align:middle;color:var(--text-tertiary);margin:0 2px}.install-icon-inline svg{width:16px;height:16px}.beta-notice{display:flex;gap:14px;padding:16px;background:#fbbf2414;border:1px solid rgba(251,191,36,.25);border-radius:14px;margin-top:8px}.beta-notice-icon{color:var(--accent-warning);flex-shrink:0;margin-top:1px}.beta-notice-text{display:flex;flex-direction:column;gap:4px}.beta-notice-text strong{font-size:14px;font-weight:700;color:var(--accent-warning)}.beta-notice-text span{font-size:13px;color:var(--text-tertiary);line-height:1.55}.modal-overlay{position:fixed;inset:0;background:#000000b3;z-index:1000;display:flex;align-items:flex-end;justify-content:center;padding:env(safe-area-inset-top,0) env(safe-area-inset-right,0) env(safe-area-inset-bottom,0) env(safe-area-inset-left,0)}.modal-content{background:var(--surface-2);border-radius:18px 18px 0 0;width:100%;max-width:560px;max-height:80vh;display:flex;flex-direction:column;overflow:hidden}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px 12px;border-bottom:1px solid rgba(91,141,239,.3)}.modal-title{font-size:17px;font-weight:700;color:var(--text-primary)}.modal-close-btn{background:none;border:none;color:var(--text-tertiary);font-size:22px;cursor:pointer;padding:4px 8px;line-height:1}.modal-search{margin:12px 16px;padding:10px 14px;border:1px solid var(--accent-primary);border-radius:11px;background:var(--surface-0);color:var(--text-primary);font-size:15px;outline:none}.modal-search:focus{border-color:var(--text-primary)}.modal-exercise-list{overflow-y:auto;padding:0 16px 16px;flex:1}.modal-exercise-item{display:flex;align-items:center;justify-content:space-between;width:100%;padding:12px 14px;margin-bottom:6px;border:1px solid rgba(91,141,239,.3);border-radius:10px;background:#12141c99;color:var(--text-primary);font-size:14px;cursor:pointer;text-align:left}.modal-exercise-item:hover,.modal-exercise-item:active{border-color:var(--accent-primary);background:#5b8def14}.modal-exercise-name{font-weight:600}.modal-exercise-meta{font-size:12px;color:var(--text-tertiary);white-space:nowrap;margin-left:10px}.modal-empty{text-align:center;color:var(--text-tertiary);font-size:14px;padding:24px 0}.admin-delete-btn{border-color:#f8717173!important;color:var(--accent-danger)!important}.admin-progress-btn{border-color:#fbbf2473!important;color:var(--accent-warning)!important}