:root{--color-primary-50: #e3f2fd;--color-primary-100: #bbdefb;--color-primary-200: #90caf9;--color-primary-300: #64b5f6;--color-primary-400: #42a5f5;--color-primary-500: #2196f3;--color-primary-600: #1e88e5;--color-primary-700: #1976d2;--color-primary-800: #1565c0;--color-primary-900: #0d47a1;--color-gray-50: #fafafa;--color-gray-100: #f5f5f5;--color-gray-200: #eeeeee;--color-gray-300: #e0e0e0;--color-gray-400: #bdbdbd;--color-gray-500: #9e9e9e;--color-gray-600: #757575;--color-gray-700: #616161;--color-gray-800: #424242;--color-gray-900: #212121;--color-success-light: #e8f5e9;--color-success-main: #4caf50;--color-success-dark: #2e7d32;--color-warning-light: #fff3e0;--color-warning-main: #ff9800;--color-warning-dark: #e65100;--color-error-light: #ffebee;--color-error-main: #f44336;--color-error-dark: #c62828;--color-info-light: #e3f2fd;--color-info-main: #2196f3;--color-info-dark: #1565c0;--zone-1-color: #808080;--zone-2-color: #2196f3;--zone-3-color: #4caf50;--zone-4-color: #ffeb3b;--zone-5-color: #ff9800;--zone-6-color: #f44336;--zone-7-color: #9c27b0;--zone-1-color-bg: rgba(128, 128, 128, .15);--zone-2-color-bg: rgba(33, 150, 243, .15);--zone-3-color-bg: rgba(76, 175, 80, .15);--zone-4-color-bg: rgba(255, 235, 59, .15);--zone-5-color-bg: rgba(255, 152, 0, .15);--zone-6-color-bg: rgba(244, 67, 54, .15);--zone-7-color-bg: rgba(156, 39, 176, .15);--hr-zone-1-color: #808080;--hr-zone-2-color: #2196f3;--hr-zone-3-color: #4caf50;--hr-zone-4-color: #ff9800;--hr-zone-5-color: #f44336}[data-theme=dark]{--color-gray-50: #212121;--color-gray-100: #303030;--color-gray-200: #424242;--color-gray-300: #616161;--color-gray-400: #757575;--color-gray-500: #9e9e9e;--color-gray-600: #bdbdbd;--color-gray-700: #e0e0e0;--color-gray-800: #eeeeee;--color-gray-900: #fafafa;--zone-1-color: #9e9e9e;--zone-2-color: #42a5f5;--zone-3-color: #66bb6a;--zone-4-color: #ffee58;--zone-5-color: #ffa726;--zone-6-color: #ef5350;--zone-7-color: #ab47bc}:root{--space-0: 0;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--space-24: 6rem;--spacing-card-padding: var(--space-4);--spacing-section-gap: var(--space-6);--spacing-input-padding: var(--space-3)}:root{--font-family-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;--font-family-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-size-4xl: 2.25rem;--font-size-5xl: 3rem;--font-size-metric-value: clamp(2rem, 8vw, 4rem);--font-size-metric-label: var(--font-size-sm);--font-size-metric-unit: var(--font-size-xs);--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 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ease;--transition-slow: .35s ease;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-full: 9999px}[data-theme=dark]{--bg-primary: var(--color-gray-900);--bg-secondary: var(--color-gray-800);--bg-tertiary: var(--color-gray-700);--bg-elevated: var(--color-gray-800);--bg-overlay: rgba(0, 0, 0, .7);--text-primary: var(--color-gray-100);--text-secondary: var(--color-gray-300);--text-tertiary: var(--color-gray-500);--text-inverse: var(--color-gray-900);--text-accent: var(--color-primary-400);--border-default: var(--color-gray-600);--border-subtle: var(--color-gray-700);--border-strong: var(--color-gray-500);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .4);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .5)}[data-high-contrast=true]{--text-primary: black;--text-secondary: black;--bg-primary: white;--border-default: black;--border-focus: black}[data-theme=dark][data-high-contrast=true]{--text-primary: white;--text-secondary: white;--bg-primary: black;--border-default: white;--border-focus: white}*{margin:0;padding:0;box-sizing:border-box;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Open Sans,Helvetica Neue,sans-serif}:root{--color-bg-primary: var(--bg-primary);--color-bg-secondary: var(--bg-secondary);--color-bg-tertiary: var(--bg-tertiary);--color-bg-hover: var(--bg-hover);--color-bg-active: var(--bg-active);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-text-muted: var(--text-muted);--color-border: var(--border-default);--color-border-strong: var(--border-focus);--color-accent: var(--interactive-default);--color-accent-hover: var(--interactive-hover);--color-success: var(--zone-3-color);--color-error: var(--zone-6-color);--color-warning: var(--zone-4-color);--header-bg: var(--bg-elevated);--menu-bg: var(--bg-elevated);--modal-bg: var(--bg-elevated);--card-bg: var(--bg-secondary);--input-bg: var(--bg-primary);--switch-bg: 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var(--zone-7-color)}.zone-1-bg{background-color:var(--zone-1-color-bg)}.zone-2-bg{background-color:var(--zone-2-color-bg)}.zone-3-bg{background-color:var(--zone-3-color-bg)}.zone-4-bg{background-color:var(--zone-4-color-bg)}.zone-5-bg{background-color:var(--zone-5-color-bg)}.zone-6-bg{background-color:var(--zone-6-color-bg)}.zone-7-bg{background-color:var(--zone-7-color-bg)}.zone-1-text{color:var(--zone-1-color)}.zone-2-text{color:var(--zone-2-color)}.zone-3-text{color:var(--zone-3-color)}.zone-4-text{color:var(--zone-4-color)}.zone-5-text{color:var(--zone-5-color)}.zone-6-text{color:var(--zone-6-color)}.zone-7-text{color:var(--zone-7-color)}.zone-accent{border-left:4px solid var(--current-zone-color, var(--border-default))}.zone-glow{box-shadow:0 0 10px var(--current-zone-color)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) 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var(--space-3);font-size:var(--font-size-sm)}.btn-lg{padding:var(--space-4) var(--space-6);font-size:var(--font-size-lg)}.btn-icon{padding:var(--space-2);border-radius:var(--radius-full)}.switch{position:relative;display:inline-block;width:36px;height:20px}.slider{position:absolute;cursor:pointer;inset:0;background-color:var(--bg-tertiary);transition:background-color var(--transition-normal)}.slider:before{position:absolute;content:"";height:16px;width:16px;left:2px;bottom:2px;background-color:var(--text-inverse);transition:transform var(--transition-normal),background-color var(--transition-normal)}input:checked+.slider{background-color:var(--zone-3-color-bg)}input:focus+.slider{box-shadow:0 0 1px var(--interactive-default)}input:checked+.slider:before{transform:translate(16px)}.slider.round{border-radius:34px}.stream-modal{display:none;position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background-color:var(--modal-overlay);align-items:center;justify-content:center;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.stream-modal-content{background-color:var(--bg-elevated);border-radius:var(--radius-lg);width:90%;max-width:600px;max-height:85vh;display:flex;flex-direction:column;box-shadow:var(--shadow-xl);transition:background-color var(--transition-normal),box-shadow var(--transition-normal)}.stream-modal-header{display:flex;justify-content:space-between;align-items:center;padding:var(--space-5) var(--space-6);border-bottom:1px solid var(--border-default);transition:border-color var(--transition-normal)}.stream-modal-header h2{font-size:var(--font-size-2xl);font-weight:var(--font-weight-semibold);color:var(--text-primary);margin:0;transition:color 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16px;--df-font-xl: 20px;--df-font-2xl: 24px;--df-font-3xl: 32px;--df-font-4xl: 48px}@media(prefers-color-scheme:light){:root{--df-surface: #f5f5f7;--df-surface-elevated: #ffffff;--df-surface-hover: #e8e8eb;--df-text: #1a1a2e;--df-text-muted: #666680;--df-text-dim: #999999;--df-border: #d0d0dd;--df-border-subtle: #e5e5ee}}.df-zone-1-bg{background-color:var(--df-zone-1)!important;color:#000!important}.df-zone-2-bg{background-color:var(--df-zone-2)!important;color:#000!important}.df-zone-3-bg{background-color:var(--df-zone-3)!important;color:#000!important}.df-zone-4-bg{background-color:var(--df-zone-4)!important;color:#000!important}.df-zone-5-bg{background-color:var(--df-zone-5)!important;color:#000!important}.df-zone-6-bg{background-color:var(--df-zone-6)!important;color:#fff!important}.df-zone-7-bg{background-color:var(--df-zone-7)!important;color:#fff!important}.df-power-accent{border-left-color:var(--df-power)!important}.df-heartrate-accent{border-left-color:var(--df-heartrate)!important}.df-cadence-accent{border-left-color:var(--df-cadence)!important}.df-speed-accent{border-left-color:var(--df-speed)!important}.df-distance-accent{border-left-color:var(--df-distance)!important}.df-elevation-accent{border-left-color:var(--df-elevation)!important}.df-time-accent{border-left-color:var(--df-time)!important}.df-numeric{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 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ease-in-out}.page-view.fade-out{opacity:0}@media(max-width:768px){#mainContent{flex-direction:column;gap:0}}#mainMenu{position:absolute;left:16px;top:50%;transform:translateY(-50%);background:transparent;z-index:101}#mainMenu>summary{display:flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:24px;cursor:pointer;list-style:none;-webkit-user-select:none;user-select:none;color:var(--text-primary);transition:color var(--transition-normal),background-color var(--transition-fast),transform var(--transition-fast);border-radius:var(--radius-md)}#mainMenu>summary:hover{background-color:var(--bg-hover)}#mainMenu>summary:active{transform:scale(.95)}#mainMenu>summary:focus-visible{outline:2px solid var(--interactive-default);outline-offset:2px}#mainMenu>summary::-webkit-details-marker{display:none}#mainMenu>summary::marker{display:none;content:""}#mainMenu[open]>summary .menu-icon{transform:rotate(90deg)}.menu-icon{display:inline-block;transition:transform var(--transition-normal)}#controls{position:absolute;top:calc(100% + 8px);left:0;background:var(--bg-elevated);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);padding:8px 0;display:flex;flex-direction:column;min-width:220px;max-height:calc(100vh - 120px);overflow-y:auto;border:1px solid var(--border-subtle);opacity:0;transform:translateY(-8px);animation:menuSlideIn .2s ease forwards}@keyframes menuSlideIn{to{opacity:1;transform:translateY(0)}}#controls>.menu-section-header,#controls>.menu-btn,#controls>.menu-toggle-container{opacity:0;transform:translate(-8px);animation:menuItemFadeIn .2s ease forwards}@keyframes 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label{display:block;font-weight:500;margin-bottom:.5rem;color:var(--color-text)}.input-field{width:100%;padding:.75rem;font-size:1rem;border:2px solid var(--color-border);border-radius:8px;background:var(--color-bg);color:var(--color-text);transition:border-color .2s}.input-field:focus{outline:none;border-color:var(--color-primary)}.warning-box{background:#fff3cd;border:2px solid #ffc107;border-radius:8px;padding:1rem;margin-top:1rem;color:#856404}.btn{padding:.75rem 1.5rem;font-size:1rem;font-weight:500;border:none;border-radius:8px;cursor:pointer;transition:all .2s}.btn-primary{background:var(--color-primary);color:#fff;width:100%;margin-top:1rem}.btn-primary:hover{background:var(--color-primary-dark, #0056b3);transform:translateY(-1px);box-shadow:0 4px 12px #007bff4d}.btn-secondary{background:var(--color-bg);color:var(--color-text);border:2px solid var(--color-border)}.btn-secondary:hover{border-color:var(--color-primary);background:var(--color-bg-hover, #f8f9fa)}.results-section{animation:fadeIn .3s ease-in}.result-card{background:var(--color-bg-secondary);border-radius:12px;padding:2rem;margin-bottom:2rem;box-shadow:0 2px 8px #0000001a}.result-card h2{font-size:1.3rem;margin-bottom:1.5rem;color:var(--color-text)}.result-main{text-align:center;padding:2rem;background:var(--color-bg);border-radius:12px;margin-bottom:1.5rem}.result-value{font-size:4rem;font-weight:700;color:var(--color-primary)}.result-unit{font-size:1rem;color:var(--color-text-secondary);margin-top:-.5rem}.result-details{background:var(--color-bg);border-radius:8px;padding:1rem;margin-bottom:1rem}.result-row{display:flex;justify-content:space-between;padding:.75rem 0;border-bottom:1px solid var(--color-border)}.result-row:last-child{border-bottom:none}.result-label{color:var(--color-text-secondary)}.result-data{font-weight:500;color:var(--color-text)}.result-notes{background:#e7f3ff;border-left:4px solid #0066cc;padding:1rem;border-radius:4px;margin-bottom:1rem;color:#004080}.result-actions{display:flex;gap:1rem;margin-top:1.5rem}.trend-section{margin-bottom:2rem}.trend-section h2{font-size:1.3rem;margin-bottom:1rem;color:var(--color-text)}.trend-card{background:var(--color-bg-secondary);border-radius:12px;padding:1.5rem;margin-bottom:1rem;box-shadow:0 2px 8px #0000001a}.trend-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}.trend-icon{font-size:1.5rem}.trend-header h3{margin:0;font-size:1.1rem}.trend-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin-bottom:1rem}.trend-stat{background:var(--color-bg);padding:1rem;border-radius:8px;text-align:center}.stat-label{font-size:.85rem;color:var(--color-text-secondary);margin-bottom:.5rem}.stat-value{font-size:1.5rem;font-weight:700;color:var(--color-text)}.stat-unit{font-size:.75rem;font-weight:400;color:var(--color-text-secondary)}.trend-improving{color:#28a745}.trend-declining{color:#dc3545}.trend-stable{color:#6c757d}.trend-message{padding:1rem;border-radius:8px;font-size:.9rem}.trend-message.improving{background:#d4edda;color:#155724}.trend-message.declining{background:#f8d7da;color:#721c24}.trend-message.stable{background:#e2e3e5;color:#383d41}.history-section{background:var(--color-bg-secondary);border-radius:12px;padding:1.5rem;margin-bottom:2rem;box-shadow:0 2px 8px #0000001a}.history-section h2{font-size:1.3rem;margin-bottom:1rem;color:var(--color-text)}.history-table{overflow-x:auto}.history-table table{width:100%;border-collapse:collapse}.history-table th{background:var(--color-bg);padding:.75rem;text-align:left;font-weight:600;color:var(--color-text);border-bottom:2px solid var(--color-border)}.history-table td{padding:.75rem;border-bottom:1px solid var(--color-border)}.history-table tr:hover{background:var(--color-bg)}.info-section{background:var(--color-bg-secondary);border-radius:12px;padding:1.5rem;margin-top:2rem}.info-section h2{font-size:1.3rem;margin-bottom:1rem;color:var(--color-text)}.info-section details{margin-bottom:1rem;background:var(--color-bg);border-radius:8px;padding:1rem}.info-section summary{cursor:pointer;-webkit-user-select:none;user-select:none;font-weight:500;color:var(--color-text)}.info-section summary:hover{color:var(--color-primary)}.info-section details[open] summary{margin-bottom:1rem;color:var(--color-primary)}.info-section p,.info-section ul{margin:.5rem 0;line-height:1.6;color:var(--color-text-secondary)}.info-section ul{padding-left:1.5rem}.norms-table{width:100%;margin-top:1rem}.norms-table th,.norms-table td{padding:.5rem;text-align:left;border-bottom:1px solid var(--color-border)}.norms-table th{font-weight:600}.error-card{background:#fee;border:2px solid #fcc;border-radius:8px;padding:1rem;color:#c33}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media(max-width:600px){.vo2max-view{padding:.5rem}.vo2max-header h1{font-size:1.5rem}.summary-cards{grid-template-columns:1fr}.activity-tabs{flex-direction:column}.activity-tab{width:100%}.trend-stats{grid-template-columns:1fr}.result-value{font-size:3rem}.history-table th,.history-table td{padding:.5rem;font-size:.9rem}}.bottom-nav{display:flex;justify-content:space-around;position:fixed;bottom:0;left:0;width:100%;background-color:var(--card-bg, #ffffff);border-top:1px solid var(--color-border, #ddd);padding-bottom:env(safe-area-inset-bottom);z-index:5000;box-shadow:0 -2px 10px #0000000d}.bottom-nav .nav-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:8px 0;background:none;border:none;color:var(--color-text-secondary, #666);cursor:pointer;font-size:12px}.bottom-nav .nav-item.active{color:var(--color-primary, #2196f3);font-weight:700}.bottom-nav .nav-icon{font-size:20px;margin-bottom:4px}#mainContent{padding-bottom:70px}@media(min-width:800px){.bottom-nav{max-width:600px;left:50%;transform:translate(-50%);border-radius:8px 8px 0 0}}#gpsMap{position:relative;min-height:200px;background:#f0f0f0;border-radius:8px;overflow:hidden;margin-bottom:16px;box-shadow:0 4px 6px #0000001a;z-index:10}#gpsMap.full-screen{position:fixed;inset:0;height:100vh!important;border-radius:0;z-index:2000}#toggleMapBtn.active{background:var(--color-primary, #007bff);color:#fff;border-color:var(--color-primary-dark, #0056b3)}.leaflet-control-container .leaflet-top{z-index:800}