:root{--color-bg-primary: #0a0a0f;--color-bg-secondary: #12121a;--color-bg-tertiary: #1a1a25;--color-bg-card: rgba(26, 26, 37, .8);--color-bg-glass: rgba(255, 255, 255, .05);--color-bg-glass-hover: rgba(255, 255, 255, .08);--color-text-primary: #ffffff;--color-text-secondary: rgba(255, 255, 255, .7);--color-text-muted: rgba(255, 255, 255, .5);--color-text-dimmed: rgba(255, 255, 255, .3);--color-accent-primary: #ff6b35;--color-accent-primary-rgb: 255, 107, 53;--color-accent-secondary: #00d4aa;--color-accent-secondary-rgb: 0, 212, 170;--color-accent-warning: #ffbb33;--color-accent-error: #ff4757;--color-accent-info: #3498db;--color-run: #ff5722;--color-ride: #2196f3;--color-walk: #4caf50;--color-hike: #8bc34a;--color-swim: #00bcd4;--color-ski: #9c27b0;--color-strava: #fc4c02;--color-strava-hover: #e54500;--gradient-primary: linear-gradient(135deg, var(--color-accent-primary) 0%, #ff8c42 100%);--gradient-secondary: linear-gradient(135deg, var(--color-accent-secondary) 0%, #00f5c4 100%);--gradient-dark: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);--gradient-glow: radial-gradient(circle at 50% 0%, rgba(255, 107, 53, .15) 0%, transparent 50%);--border-color: rgba(255, 255, 255, .08);--border-color-light: rgba(255, 255, 255, .12);--border-radius-sm: 8px;--border-radius-md: 12px;--border-radius-lg: 16px;--border-radius-xl: 24px;--border-radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .3);--shadow-md: 0 4px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(var(--color-accent-primary-rgb), .2);--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--space-3xl: 64px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-md: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 2rem;--font-size-4xl: 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infinite}@keyframes pulse-glow{0%,to{opacity:.5;transform:translate(-50%) scale(1)}50%{opacity:.8;transform:translate(-50%) scale(1.1)}}.login-content{position:relative;z-index:1;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--space-2xl);gap:var(--space-2xl)}.login-hero{text-align:center;max-width:600px;animation:fadeUp .8s ease-out}@keyframes fadeUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.hero-icon{font-size:72px;margin-bottom:var(--space-lg);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-12px)}}.login-hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:var(--font-weight-bold);margin-bottom:var(--space-md);background:linear-gradient(135deg,#fff,#ffffffb3);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.login-hero p{font-size:var(--font-size-lg);color:var(--color-text-secondary);line-height:1.7}.login-features{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);max-width:700px;animation:fadeUp .8s ease-out .2s both}.feature{padding:var(--space-xl);background:var(--color-bg-glass);border:1px solid var(--border-color);border-radius:var(--border-radius-xl);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);text-align:center;transition:all var(--transition-normal)}.feature:hover{transform:translateY(-4px);border-color:var(--border-color-light);background:var(--color-bg-glass-hover)}.feature-icon{font-size:36px;margin-bottom:var(--space-md)}.feature h3{font-size:var(--font-size-md);margin-bottom:var(--space-xs)}.feature p{font-size:var(--font-size-sm);color:var(--color-text-muted);margin:0}.login-action{display:flex;flex-direction:column;align-items:center;gap:var(--space-md);animation:fadeUp .8s ease-out .4s both}.login-action .btn-strava{padding:var(--space-md) var(--space-2xl);font-size:var(--font-size-lg);gap:var(--space-md)}.login-disclaimer{font-size:var(--font-size-xs);color:var(--color-text-dimmed);max-width:300px;text-align:center}.login-preview{width:100%;max-width:800px;animation:fadeUp .8s ease-out .6s both}.preview-window{background:var(--color-bg-secondary);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}.preview-header{display:flex;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);background:var(--color-bg-tertiary);border-bottom:1px solid var(--border-color)}.dot{width:12px;height:12px;border-radius:50%}.dot.red{background:#ff5f57}.dot.yellow{background:#febc2e}.dot.green{background:#28c840}.preview-content{display:flex;height:200px}.preview-sidebar{width:180px;padding:var(--space-md);border-right:1px solid var(--border-color);display:flex;flex-direction:column;gap:var(--space-sm)}.preview-stat{height:40px;border-radius:var(--border-radius-sm)}.preview-item{height:32px;border-radius:var(--border-radius-sm)}.preview-map{flex:1;display:flex;align-items:center;justify-content:center;background:var(--color-bg-primary)}.preview-heatmap{width:100%;height:100%}.login-footer{position:relative;z-index:1;padding:var(--space-lg);text-align:center;color:var(--color-text-dimmed);font-size:var(--font-size-sm)}@media(max-width:768px){.login-content{padding:var(--space-lg);gap:var(--space-xl)}.hero-icon{font-size:56px}.login-features{grid-template-columns:1fr;gap:var(--space-md)}.feature{padding:var(--space-lg)}.preview-sidebar{display:none}}.app{display:flex;flex-direction:column;min-height:100vh;background:var(--color-bg-primary)}.app-main{display:flex;flex:1;margin-top:var(--header-height);position:relative}.app-content{flex:1;display:flex;flex-direction:column;margin-left:var(--sidebar-width);transition:margin-left var(--transition-normal)}@media(min-width:769px){.app-content{margin-left:var(--sidebar-width)}}@media(max-width:768px){.app-content{margin-left:0}}.welcome-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:var(--space-2xl);text-align:center;background:var(--gradient-dark);position:relative;overflow:hidden}.welcome-screen:before{content:"";position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:var(--gradient-glow);animation:rotate 30s linear infinite;opacity:.5}@keyframes rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.welcome-content{position:relative;z-index:1;max-width:480px}.welcome-icon{font-size:80px;margin-bottom:var(--space-lg);animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.welcome-content h1{font-size:var(--font-size-4xl);margin-bottom:var(--space-md);background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.welcome-content p{font-size:var(--font-size-lg);color:var(--color-text-secondary);margin-bottom:var(--space-2xl);line-height:1.6}.welcome-features{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-lg);margin-bottom:var(--space-2xl)}.feature-card{padding:var(--space-lg);background:var(--color-bg-glass);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.feature-card .icon{font-size:32px;margin-bottom:var(--space-sm)}.feature-card h3{font-size:var(--font-size-sm);margin-bottom:var(--space-xs)}.feature-card p{font-size:var(--font-size-xs);color:var(--color-text-muted);margin:0}@media(max-width:768px){.welcome-features{grid-template-columns:1fr}.welcome-content h1{font-size:var(--font-size-3xl)}}