:root{--primary-color:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--secondary-color:#ec4899;--accent-color:#10b981;--accent-light:#34d399;--text-primary:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#94a3b8;--text-inverse:#1e293b;--background:#0f172a;--background-secondary:#1e293b;--surface:#334155;--surface-light:#475569;--border:#475569;--border-light:#64748b;--gradient-primary:linear-gradient(135deg,#6366f1,#8b5cf6 50%,#ec4899);--gradient-secondary:linear-gradient(135deg,#10b981,#34d399);--gradient-accent:linear-gradient(135deg,#f59e0b,#f97316);--gradient-surface:linear-gradient(135deg,#1e293b,#334155);--gradient-glass:linear-gradient(135deg,hsla(0,0%,100%,.1),hsla(0,0%,100%,.05));--shadow-sm:0 1px 2px 0 rgba(0,0,0,.3);--shadow-md:0 4px 6px -1px rgba(0,0,0,.4);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.5);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.6);--shadow-glow:0 0 20px rgba(99,102,241,.3);--blur-sm:blur(4px);--blur-md:blur(8px);--blur-lg:blur(16px);--transition-fast:0.15s ease-out;--transition-normal:0.3s ease-out;--transition-slow:0.5s ease-out}*{margin:0;padding:0;box-sizing:border-box;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}html{scroll-behavior:smooth;font-size:16px}body,html{background:var(--background)}body{color:var(--text-primary);min-height:100vh;line-height:1.7;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.header{position:fixed;top:0;left:0;right:0;background:rgba(15,23,42,.8);-webkit-backdrop-filter:var(--blur-lg);backdrop-filter:var(--blur-lg);border-bottom:1px solid var(--border);z-index:1000;padding:1rem 0;box-shadow:var(--shadow-lg);transition:var(--transition-normal)}.header-container{max-width:1400px;margin:0 auto;padding:0 2rem;justify-content:space-between;gap:2rem}.header-container,.logo{display:flex;align-items:center}.logo{gap:.75rem;text-decoration:none;color:var(--text-primary);font-weight:700;font-size:1.5rem;transition:var(--transition-normal);position:relative}.logo:hover{transform:translateY(-2px);color:var(--primary-light)}.logo-icon{font-size:1.75rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:drop-shadow(0 0 10px rgba(99,102,241,.3))}.nav{display:flex;gap:.5rem;align-items:center}.nav-link{color:var(--text-secondary);text-decoration:none;font-weight:500;font-size:.95rem;padding:.75rem 1.25rem;border-radius:12px;transition:var(--transition-normal);position:relative;background:transparent;border:1px solid transparent}.nav-link:hover{color:var(--text-primary);background:var(--gradient-glass);border-color:var(--border-light);transform:translateY(-1px);box-shadow:var(--shadow-md)}.nav-link:active{transform:translateY(0)}.header-actions{display:flex;align-items:center;gap:1.5rem}.btn-login,.btn-signup{padding:.75rem 1.5rem;border-radius:12px;font-weight:600;font-size:.9rem;cursor:pointer;transition:var(--transition-normal);border:none;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-width:100px;position:relative;overflow:hidden}.btn-login{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-login:hover{color:var(--text-primary);background:var(--gradient-glass);border-color:var(--primary-color);transform:translateY(-2px);box-shadow:var(--shadow-glow)}.btn-signup{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-signup:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);filter:brightness(1.1)}.dots{top:0;height:100%;background:radial-gradient(circle at 25% 25%,rgba(99,102,241,.1) 0,transparent 50%),radial-gradient(circle at 75% 75%,rgba(236,72,153,.1) 0,transparent 50%),radial-gradient(circle at 50% 50%,rgba(16,185,129,.05) 0,transparent 50%)}.bottom-gradient,.dots{position:fixed;left:0;width:100%;pointer-events:none;z-index:-1}.bottom-gradient{bottom:0;height:100vh;background:radial-gradient(ellipse at bottom,rgba(99,102,241,.1) 0,transparent 70%)}.header{position:absolute;top:4vh;display:flex;justify-content:center;align-items:center}.header svg{padding:16px 25px}.heading{font-size:4.5rem;font-weight:900;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em;text-align:center;text-shadow:0 4px 8px rgba(212,175,55,.2);line-height:1.1}.regenerate-button{color:var(--background);background:var(--button)}.back-button{position:fixed;top:32px;left:32px;color:var(--primary-contrast);background-color:var(--surface);display:flex;align-items:center;gap:6px;text-decoration:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.button{font-size:15px;line-height:1.3;font-weight:500;padding:11px 16px;border-radius:100px;border:none;cursor:pointer;transition:scale .2s,filter .2s}.button:hover{filter:brightness(1.1)}.button:active{scale:.97}.content{margin:100px 0 0;justify-content:center;gap:4rem;background:var(--background);min-height:calc(100vh - 100px);padding:2rem;position:relative}.content,.content header{display:flex;flex-direction:column;align-items:center}.content header{gap:32px}.content header h2{font-size:20px;font-weight:400}.data-container,.features{display:grid;grid-gap:10px;gap:10px}.features{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1200px;width:100%}.feature-card{background:var(--gradient-glass);-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);border:1px solid var(--border);border-radius:20px;padding:2rem;text-align:center;position:relative;overflow:hidden}.feature-card,.feature-card:before{transition:var(--transition-normal)}.feature-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary);opacity:0}.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.feature-card:hover:before{opacity:1}.feature-icon{font-size:3rem;margin-bottom:1.5rem;display:block;filter:drop-shadow(0 4px 8px rgba(99,102,241,.3))}.feature-card h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.feature-card p{color:var(--text-secondary);line-height:1.6;font-size:.95rem}.section-title{font-size:2.5rem;font-weight:800;text-align:center;margin-bottom:3rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.02em}.how-it-works{max-width:1000px}.steps{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}.step{background:var(--gradient-surface);border-radius:16px;padding:2rem;text-align:center;position:relative;overflow:hidden}.step,.step:before{transition:var(--transition-normal)}.step:before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient-primary);transform:scaleX(0)}.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-color)}.step:hover:before{transform:scaleX(1)}.step-number{width:60px;height:60px;font-size:1.5rem;margin:0 auto 1.5rem;box-shadow:var(--shadow-md)}.step h3{margin-bottom:1rem}.step p{line-height:1.6}.data-container{grid-template-columns:repeat(2,1fr);text-wrap:pretty}.card{flex-direction:column;padding:24px;gap:12px;max-width:360px}.card h2{font-size:24px;line-height:1.2;font-weight:500;letter-spacing:-2%}.card p{font-size:13px;line-height:1.5;color:var(--secondary-contrast);letter-spacing:-1%}.card p a,.link{color:var(--primary-contrast);text-decoration:underline;text-underline-offset:2px}.links-container{padding-top:24px;gap:24px}.links,.links-container{display:flex;flex-wrap:wrap}.links{gap:10px}.links a{padding:14px 15px;color:var(--primary-contrast);font-size:14px;font-weight:500;text-decoration:none;white-space:nowrap;justify-content:center;align-items:center;gap:4px}.card,.links a{position:relative;border-radius:24px;background:var(--surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex}.card:before,.links a:before{content:"";position:absolute;inset:0;border-radius:24px;padding:1px;background:linear-gradient(var(--border),transparent 30%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.card:not(:first-child):after,.links a:not(:first-child):after{content:"";top:0;height:100%;background:var(--surface);position:absolute;pointer-events:none}.card:not(:first-child):after{width:10px;left:-10px;mask:url(/between-cards.svg) no-repeat center/contain;-webkit-mask:url(/between-cards.svg) no-repeat center/contain}.links a:not(:first-child):after{width:30px;left:calc(-20px);mask:url(/between-links.svg) no-repeat center/contain;-webkit-mask:url(/between-links.svg) no-repeat center/contain}@media only screen and (max-width:1023px){.heading{font-size:3rem}.header-container{grid-template-columns:1fr;gap:1.5rem;padding:0 1.5rem}.nav{gap:2rem;padding:0}.header-actions{justify-content:center;gap:1rem}.back-button{top:10px;left:10px}.data-container,.features{grid-template-columns:1fr}.card:after,.links a:after,.top-gradient{display:none}.bottom-gradient{width:150%;height:400px;margin-bottom:-450px}}@media only screen and (max-width:768px){.header-container{grid-template-columns:1fr;gap:1rem;padding:0 1rem}.nav{gap:1.5rem;flex-wrap:wrap;justify-content:center}.nav-link{font-size:1rem;padding:.4rem .8rem}.btn-login,.btn-signup{padding:.6rem 1.5rem;font-size:.9rem;min-width:100px}.heading{font-size:2.5rem}}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:var(--background)}.auth-container{width:100%;max-width:400px}.auth-card{background:var(--surface);border-radius:16px;padding:2rem;box-shadow:var(--shadow-lg);border:1px solid var(--border)}.auth-title{font-size:2rem;font-weight:700;color:var(--text-primary);text-align:center;margin-bottom:.5rem}.auth-subtitle{color:var(--text-secondary);text-align:center;margin-bottom:2rem;line-height:1.5}.auth-form{gap:1.5rem}.auth-form,.form-group{display:flex;flex-direction:column}.form-group{gap:.5rem}.form-label{font-weight:500;color:var(--text-primary);font-size:.875rem}.form-input:focus{box-shadow:0 0 0 3px rgba(139,92,246,.1)}.auth-button{width:100%;padding:.75rem 1rem;font-size:1rem;font-weight:600;border-radius:8px;border:none;cursor:pointer;transition:all .2s}.auth-button:disabled{opacity:.6;cursor:not-allowed}.auth-links{margin-top:1.5rem;text-align:center}.auth-link{color:var(--primary-color);text-decoration:none;font-weight:500;transition:color .2s}.auth-link:hover{color:var(--primary-dark);text-decoration:underline}.auth-text{color:var(--text-secondary);margin:.5rem 0}.error-message,.success-message{padding:.75rem 1rem;margin-bottom:1rem;font-size:.875rem}.success-message{background:#f0fdf4;color:#16a34a;border-radius:8px;border:1px solid #bbf7d0}.loading-spinner{color:var(--text-secondary);font-size:.875rem;padding:1rem 2rem;background:var(--gradient-glass);border:1px solid var(--border);border-radius:12px;-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md)}.loading-container,.loading-spinner{display:flex;align-items:center;justify-content:center}.loading-container{min-height:50vh;position:relative}.loading-container:before{content:"";position:absolute;width:40px;height:40px;border-top:3px solid var(--border);border:3px solid var(--border);border-top-color:var(--primary-color);border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}@keyframes spin{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.user-name{color:var(--text-primary);font-weight:500;margin:0 .5rem}.btn-logout{background:transparent;color:var(--text-secondary);border:1px solid var(--border);padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.875rem;transition:all .2s}.btn-logout:hover{background:var(--surface);color:var(--text-primary)}.dashboard{padding:2rem;max-width:1400px;margin:0 auto;min-height:calc(100vh - 100px)}.dashboard-container{margin-top:2rem}.dashboard-title{font-size:3rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:1rem;text-align:center}.dashboard-subtitle{color:var(--text-secondary);font-size:1.25rem;margin-bottom:3rem;text-align:center;max-width:600px;margin-left:auto;margin-right:auto}.dashboard-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));grid-gap:2rem;gap:2rem;margin-top:2rem}.dashboard-card{background:var(--gradient-glass);-webkit-backdrop-filter:var(--blur-md);backdrop-filter:var(--blur-md);border:1px solid var(--border);border-radius:20px;padding:2rem;box-shadow:var(--shadow-md);transition:var(--transition-normal);position:relative;overflow:hidden}.dashboard-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--gradient-primary);opacity:0;transition:var(--transition-normal)}.dashboard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-xl);border-color:var(--primary-color)}.dashboard-card:hover:before{opacity:1}.dashboard-card h3{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin-bottom:1rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.dashboard-card p{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.6;font-size:.95rem}.how-it-works{max-width:1200px;width:100%;text-align:center}.steps{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:2rem;gap:2rem;margin-top:2rem}.step{display:flex;flex-direction:column;align-items:center;padding:1.5rem;background:var(--surface);border-radius:12px;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:transform .2s}.step:hover{transform:translateY(-2px)}.step-number{width:40px;height:40px;background:var(--gradient-primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.25rem;margin-bottom:1rem}.step h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.step p{color:var(--text-secondary);line-height:1.5;font-size:.9rem}.daily-record-form,.drink-goal-form{background:var(--surface);border-radius:12px;padding:1.5rem;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.form-title{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin-bottom:.5rem}.form-subtitle{color:var(--text-secondary);margin-bottom:1.5rem;line-height:1.5}.goal-form,.record-form{display:flex;flex-direction:column;gap:1.5rem}.input-group{gap:.5rem}.input-button,.input-group{display:flex;align-items:center}.input-button{width:40px;height:40px;border:1px solid var(--border);background:var(--background);color:var(--text-primary);border-radius:8px;cursor:pointer;justify-content:center;font-weight:600;font-size:1.25rem;transition:all .2s}.input-button:hover:not(:disabled){background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.input-button:disabled{opacity:.5;cursor:not-allowed}.form-input{flex:1 1;padding:.75rem 1rem;border:1px solid var(--border);border-radius:8px;font-size:1rem;background:var(--background);color:var(--text-primary);text-align:center;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(212,175,55,.1)}.radio-group{display:flex;flex-direction:column;gap:.75rem}.radio-label{display:flex;align-items:center;gap:.75rem;cursor:pointer;padding:.75rem;border-radius:8px;transition:background-color .2s}.radio-label:hover{background:rgba(212,175,55,.05)}.radio-input{width:18px;height:18px;accent-color:var(--primary-color)}.radio-text{font-weight:500;color:var(--text-primary)}.btn-primary,.btn-secondary{padding:.875rem 2rem;border-radius:12px;font-weight:600;font-size:.95rem;cursor:pointer;transition:var(--transition-normal);border:none;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-width:140px;position:relative;overflow:hidden}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg);filter:brightness(1.1)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{background:transparent;color:var(--text-secondary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--gradient-glass);color:var(--text-primary);border-color:var(--primary-color);transform:translateY(-1px);box-shadow:var(--shadow-md)}.goal-card,.record-card{background:var(--surface);border-radius:12px;padding:1.5rem;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:transform .2s}.goal-card:hover,.record-card:hover{transform:translateY(-2px)}.card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.card-header h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0}.card-actions{gap:.5rem}.calendar-button,.card-actions{display:flex;align-items:center}.calendar-button{background:transparent;color:var(--text-secondary);border:1px solid var(--border);padding:.5rem;border-radius:6px;cursor:pointer;font-size:1rem;transition:all .2s;width:36px;height:36px;justify-content:center}.calendar-button:hover{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.edit-button{background:transparent;color:var(--primary-color);border:1px solid var(--primary-color);padding:.5rem 1rem;border-radius:6px;cursor:pointer;font-size:.875rem;font-weight:500;transition:all .2s}.edit-button:hover{background:var(--primary-color);color:#fff}.card-content{display:flex;flex-direction:column;gap:1rem}.goal-stats,.record-details{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:1rem;gap:1rem}.goal-stat,.record-stat{text-align:center;padding:1rem;background:rgba(212,175,55,.05);border-radius:8px;border:1px solid rgba(212,175,55,.1)}.stat-label{font-size:.875rem;color:var(--text-secondary);margin-bottom:.5rem;font-weight:500}.stat-value{font-size:1.5rem;font-weight:700;color:var(--primary-color)}.record-status{text-align:center;margin-bottom:1rem}.status-indicator{display:inline-block;padding:.5rem 1rem;border-radius:20px;font-weight:600;font-size:.875rem}.status-indicator.drank{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.2)}.status-indicator.not-drank{background:hsla(220,9%,46%,.1);border:1px solid hsla(220,9%,46%,.2)}.no-goal,.no-record{text-align:center;padding:2rem 1rem;color:var(--text-secondary)}.no-goal p,.no-record p{margin-bottom:1rem;font-size:1rem}.loading{text-align:center;color:var(--text-secondary);padding:2rem 1rem}.goal-info,.record-info{text-align:center;font-size:.875rem;color:var(--text-light)}.goal-info p,.record-info p{margin:0}.full-width{grid-column:1/-1}.drink-calendar{background:var(--surface);border-radius:12px;padding:1.5rem;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.calendar-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.calendar-title{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin:0}.nav-button{width:40px;height:40px;border:1px solid var(--border);background:var(--background);color:var(--text-primary);border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;transition:all .2s}.nav-button:hover:not(:disabled){background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.nav-button:disabled{opacity:.5;cursor:not-allowed}.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);grid-gap:4px;gap:4px}.weekday-header{text-align:center;font-weight:600;color:var(--text-secondary);padding:.5rem 0;font-size:.875rem}.calendar-day{aspect-ratio:1;border:1px solid var(--border);background:var(--background);color:var(--text-primary);border-radius:8px;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;transition:all .2s;min-height:60px}.calendar-day:hover:not(:disabled){background:rgba(212,175,55,.1);border-color:var(--primary-color)}.calendar-day.empty{border:none;background:transparent;cursor:default}.calendar-day.today{background:rgba(212,175,55,.1);border-color:var(--primary-color);font-weight:600}.calendar-day.selected{background:var(--primary-color);color:#fff;border-color:var(--primary-dark)}.calendar-day.drank{border-color:#16a34a;background:rgba(34,197,94,.05)}.calendar-day.not-drank{border-color:#6b7280;background:hsla(220,9%,46%,.05)}.day-number{font-size:.875rem;font-weight:500}.status-indicator{position:absolute;top:2px;right:2px;font-size:.75rem;opacity:.8}.status-indicator.drank{color:#16a34a}.status-indicator.not-drank{color:#6b7280}.calendar-loading{text-align:center;color:var(--text-secondary);padding:1rem;font-size:.875rem}.analysis-page{padding-top:80px;min-height:100vh;background:var(--background)}.analysis-container{max-width:1200px;margin:0 auto;padding:2rem}.analysis-title{font-size:2.5rem;font-weight:700;color:var(--text-primary);text-align:center;margin-bottom:.5rem;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.analysis-subtitle{font-size:1.1rem;color:var(--text-secondary);text-align:center;margin-bottom:2rem}.analysis-type-selector{display:flex;gap:1rem;margin-bottom:2rem;justify-content:center;flex-wrap:wrap}.type-button{padding:.75rem 1.5rem;border:2px solid var(--border);background:var(--surface);color:var(--text-primary);border-radius:12px;font-weight:500;cursor:pointer;transition:all .3s ease;font-size:.9rem}.type-button:hover{background:var(--primary-color);transform:translateY(-2px)}.type-button.active,.type-button:hover{border-color:var(--primary-color);color:#fff;box-shadow:var(--shadow-md)}.type-button.active{background:var(--gradient-primary)}.analysis-filters{display:flex;gap:1rem;align-items:center;justify-content:center;margin-bottom:2rem;flex-wrap:wrap}.year-selector{display:flex;align-items:center;gap:.5rem}.year-selector label{font-weight:500;color:var(--text-primary)}.year-select{padding:.5rem 1rem;border:2px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);font-size:.9rem;cursor:pointer}.year-select:focus{outline:none;border-color:var(--primary-color)}.custom-date-selector,.date-range-picker{display:flex;align-items:center;gap:1rem}.date-input-group{display:flex;flex-direction:column;gap:.25rem}.date-label{font-size:.8rem;font-weight:500;color:var(--text-secondary)}.date-input{padding:.5rem;border:2px solid var(--border);border-radius:8px;background:var(--surface);color:var(--text-primary);font-size:.9rem;cursor:pointer}.date-input:focus{outline:none;border-color:var(--primary-color)}.date-separator{font-size:1.2rem;font-weight:600;color:var(--text-secondary);margin-top:1.2rem}.analyze-button{padding:.75rem 1.5rem;background:var(--gradient-primary);color:#fff;border:none;border-radius:12px;font-weight:600;cursor:pointer;transition:all .3s ease;font-size:.9rem}.analyze-button:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--shadow-lg)}.analyze-button:disabled{opacity:.6;cursor:not-allowed}.error-message{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;padding:1rem;border-radius:8px;text-align:center;margin-bottom:2rem}.no-data-message{text-align:center;padding:3rem;color:var(--text-secondary)}.no-data-message p{margin-bottom:.5rem}.analysis-results{margin-top:2rem}.charts-container{display:grid;grid-gap:2rem;gap:2rem;margin-top:2rem}.chart-container{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-md);border:1px solid var(--border)}.chart-title{font-size:1.2rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem;text-align:center}.chart-wrapper{width:100%}.analysis-summary{background:#fff;border-radius:16px;padding:1.5rem;box-shadow:var(--shadow-md);border:1px solid var(--border);margin-bottom:2rem}.summary-title{font-size:1.3rem;font-weight:600;color:var(--text-primary);margin-bottom:1rem;text-align:center}.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));grid-gap:1rem;gap:1rem}.summary-card{background:var(--surface);padding:1rem;border-radius:12px;text-align:center;border:1px solid var(--border)}.summary-label{font-size:.8rem;color:var(--text-secondary);margin-bottom:.5rem;font-weight:500}.summary-value{font-size:1.2rem;font-weight:700;color:var(--text-primary)}@media only screen and (max-width:768px){.header-container{padding:0 1rem;gap:1rem}.nav{display:none}.logo{font-size:1.25rem}.content{padding:1rem;gap:2rem}.section-title{font-size:2rem}.features{grid-template-columns:1fr;gap:1.5rem}.feature-card{padding:1.5rem}.steps{grid-template-columns:1fr;gap:1.5rem}.step{padding:1.5rem}.goal-stats,.record-details{grid-template-columns:1fr}.input-group{flex-direction:column;gap:.75rem}.form-input{width:100%}.radio-group{gap:.5rem}.radio-label{padding:.5rem}.dashboard{padding:1rem}.dashboard-title{font-size:2rem}.dashboard-content{grid-template-columns:1fr;gap:1.5rem}.analysis-container{padding:1rem}.analysis-title{font-size:2rem}.analysis-type-selector{flex-direction:column;align-items:center}.type-button{width:100%;max-width:300px}.analysis-filters,.custom-date-selector,.date-range-picker{flex-direction:column;align-items:stretch}.date-separator{margin-top:0;text-align:center}.summary-grid{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}}