:root{--primary: #4F46E5;--primary-dark: #4338CA;--primary-light: #818CF8;--primary-pale: #EEF2FF;--accent-pink: #EC4899;--accent-orange: #F97316;--accent-green: #10B981;--accent-yellow: #FBBF24;--accent-cyan: #06B6D4;--bg-primary: #FFFFFF;--bg-secondary: #F8FAFC;--bg-tertiary: #F1F5F9;--bg-card: #FFFFFF;--bg-hover: #F8FAFC;--text-primary: #1E293B;--text-secondary: #475569;--text-muted: #94A3B8;--text-light: #CBD5E1;--border: #E2E8F0;--border-light: #F1F5F9;--border-focus: #4F46E5;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1);--doodle-shadow: 2px 2px 0px rgba(0, 0, 0, .1);--card-shadow: 0 4px 20px rgba(0, 0, 0, .08)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg-secondary);color:var(--text-primary);min-height:100vh;line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column;background:var(--bg-secondary)}.container{max-width:1200px;margin:0 auto;padding:0 1.5rem;width:100%}.header{background:var(--bg-primary);border-bottom:1px solid var(--border);padding:.875rem 0;position:sticky;top:0;z-index:100;box-shadow:var(--shadow-sm)}.header-content{display:flex;justify-content:space-between;align-items:center}.logo{display:flex;align-items:center;gap:.625rem;font-size:1.375rem;font-weight:700;color:var(--text-primary);text-decoration:none}.logo-icon{font-size:1.75rem}.logo-text{background:linear-gradient(135deg,var(--primary) 0%,var(--accent-pink) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.nav{display:flex;gap:.375rem;align-items:center}.nav-link{padding:.5rem 1rem;border-radius:8px;color:var(--text-secondary);text-decoration:none;transition:all .2s ease;font-weight:500;font-size:.875rem}.nav-link:hover,.nav-link.active{color:var(--primary);background:var(--primary-pale)}.btn{padding:.625rem 1.25rem;border:none;border-radius:10px;font-weight:600;cursor:pointer;transition:all .2s ease;font-size:.875rem;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;text-decoration:none}.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-md)}.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-lg)}.btn-secondary{background:var(--bg-primary);color:var(--text-primary);border:2px solid var(--border)}.btn-secondary:hover{border-color:var(--primary);color:var(--primary)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--bg-tertiary);color:var(--primary)}.btn-doodle{background:var(--primary);color:#fff;border-radius:12px;box-shadow:3px 3px 0 var(--primary-dark);transition:all .15s ease}.btn-doodle:hover{transform:translate(-2px,-2px);box-shadow:5px 5px 0 var(--primary-dark)}.btn-doodle:active{transform:translate(0);box-shadow:1px 1px 0 var(--primary-dark)}.btn-lg{padding:.875rem 2rem;font-size:1rem;border-radius:12px}.btn-sm{padding:.5rem 1rem;font-size:.8rem}.btn-icon{width:44px;height:44px;padding:0;border-radius:12px}.card{background:var(--bg-card);border-radius:16px;border:1px solid var(--border);padding:1.5rem;box-shadow:var(--card-shadow);transition:all .2s ease}.card:hover{box-shadow:var(--shadow-lg)}.card-doodle{background:var(--bg-card);border:2px solid var(--text-primary);border-radius:16px;box-shadow:4px 4px #0000001a}.onboarding-container{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(180deg,var(--bg-primary) 0%,var(--primary-pale) 100%);padding:2rem;position:relative;overflow:hidden}.onboarding-slider{width:100%;max-width:500px;text-align:center;position:relative}.onboarding-slide{display:flex;flex-direction:column;align-items:center;animation:slideIn .4s ease-out}.onboarding-illustration{width:280px;height:280px;margin-bottom:2rem;display:flex;align-items:center;justify-content:center;font-size:150px;animation:float 3s ease-in-out infinite}.onboarding-title{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin-bottom:.75rem}.onboarding-message{font-size:1rem;color:var(--text-secondary);max-width:400px;line-height:1.6;margin-bottom:2rem}.onboarding-dots{display:flex;gap:.5rem;justify-content:center;margin-bottom:2rem}.onboarding-dot{width:10px;height:10px;border-radius:50%;background:var(--border);cursor:pointer;transition:all .2s ease}.onboarding-dot.active{background:var(--primary);width:24px;border-radius:5px}.onboarding-nav{position:absolute;bottom:2rem;left:0;right:0;display:flex;justify-content:space-between;padding:0 2rem}.onboarding-nav .btn-back{visibility:hidden}.onboarding-nav .btn-back.visible{visibility:visible}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,var(--bg-primary) 0%,var(--primary-pale) 100%);padding:2rem}.auth-card{background:var(--bg-card);border-radius:24px;padding:2.5rem;width:100%;max-width:420px;box-shadow:var(--shadow-xl);border:1px solid var(--border)}.auth-logo{text-align:center;margin-bottom:2rem}.auth-logo-icon{font-size:3rem;margin-bottom:.5rem}.auth-logo-text{font-size:1.5rem;font-weight:700;background:linear-gradient(135deg,var(--primary) 0%,var(--accent-pink) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.auth-subtitle{color:var(--text-muted);font-size:.9rem;margin-top:.25rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;margin-bottom:.5rem;font-weight:500;color:var(--text-secondary);font-size:.875rem}.form-input{width:100%;padding:.875rem 1rem;background:var(--bg-secondary);border:2px solid var(--border);border-radius:12px;color:var(--text-primary);font-size:1rem;transition:all .2s ease}.form-input:focus{outline:none;border-color:var(--primary);background:var(--bg-primary);box-shadow:0 0 0 4px var(--primary-pale)}.form-input::placeholder{color:var(--text-muted)}.btn-auth{width:100%;padding:1rem;font-size:1rem;font-weight:600;border-radius:12px;background:var(--primary);border:none;color:#fff;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 0 var(--primary-dark)}.btn-auth:hover{transform:translateY(-2px);box-shadow:0 6px 0 var(--primary-dark)}.btn-auth:active{transform:translateY(0);box-shadow:0 2px 0 var(--primary-dark)}.btn-later{width:100%;padding:.875rem;background:transparent;border:2px dashed var(--border);border-radius:12px;color:var(--text-muted);cursor:pointer;transition:all .2s ease;font-size:.9rem}.btn-later:hover{border-color:var(--text-secondary);color:var(--text-secondary)}.divider{display:flex;align-items:center;margin:1.5rem 0;color:var(--text-muted)}.divider:before,.divider:after{content:"";flex:1;height:1px;background:var(--border)}.divider span{padding:0 1rem;font-size:.85rem}.auth-footer{text-align:center;margin-top:1.5rem;color:var(--text-muted);font-size:.9rem}.auth-footer a{color:var(--primary);text-decoration:none;font-weight:600}.main{flex:1;padding:1.5rem 0}.page-header{margin-bottom:1.5rem}.page-title{font-size:1.75rem;font-weight:700;color:var(--text-primary)}.page-subtitle{color:var(--text-secondary);font-size:.95rem}.upload-zone{border:2px dashed var(--border);border-radius:16px;padding:3rem;text-align:center;transition:all .2s ease;cursor:pointer;background:var(--bg-card)}.upload-zone:hover,.upload-zone.dragover{border-color:var(--primary);background:var(--primary-pale)}.upload-icon{font-size:3.5rem;margin-bottom:1rem}.upload-text{font-size:1.125rem;color:var(--text-primary);font-weight:600;margin-bottom:.5rem}.upload-hint{color:var(--text-muted);font-size:.875rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.5rem}.stat-card{background:var(--bg-card);border-radius:16px;padding:1.25rem;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.stat-icon{font-size:1.5rem;margin-bottom:.5rem}.stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:.25rem}.stat-value{font-size:1.75rem;font-weight:700;color:var(--text-primary)}.charts-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:1.5rem;margin-top:1.5rem}.chart-card{background:var(--bg-card);border-radius:16px;padding:1.25rem;border:1px solid var(--border);box-shadow:var(--shadow-sm)}.chart-title{font-size:.9rem;font-weight:600;margin-bottom:1rem;color:var(--text-primary)}.history-list{display:flex;flex-direction:column;gap:.75rem}.history-item{display:flex;justify-content:space-between;align-items:center;padding:1.25rem;background:var(--bg-card);border-radius:12px;border:1px solid var(--border);cursor:pointer;transition:all .2s ease}.history-item:hover{border-color:var(--primary);box-shadow:var(--shadow-md)}.settings-container{max-width:700px;margin:0 auto}.settings-section{background:var(--bg-card);border-radius:16px;padding:1.5rem;margin-bottom:1rem;border:1px solid var(--border)}.settings-title{font-size:1rem;font-weight:600;margin-bottom:1rem;color:var(--text-primary);display:flex;align-items:center;gap:.5rem}.settings-row{display:flex;justify-content:space-between;align-items:center;padding:.875rem 0;border-bottom:1px solid var(--border-light)}.settings-row:last-child{border-bottom:none}.settings-label{color:var(--text-secondary)}.settings-value{font-weight:500;color:var(--text-primary)}.toggle{position:relative;width:48px;height:26px;background:var(--border);border-radius:13px;cursor:pointer;transition:all .2s ease}.toggle.active{background:var(--primary)}.toggle:after{content:"";position:absolute;top:3px;left:3px;width:20px;height:20px;background:#fff;border-radius:50%;transition:all .2s ease;box-shadow:var(--shadow-sm)}.toggle.active:after{left:25px}.profile-container{max-width:700px;margin:0 auto}.profile-header{display:flex;align-items:center;gap:1.5rem;padding:1.5rem;background:var(--bg-card);border-radius:16px;border:1px solid var(--border);margin-bottom:1rem}.profile-avatar{width:80px;height:80px;border-radius:50%;background:linear-gradient(135deg,var(--primary) 0%,var(--accent-pink) 100%);display:flex;align-items:center;justify-content:center;font-size:2rem;color:#fff}.profile-stats{display:flex;gap:1.5rem;margin-top:.75rem}.profile-stat-value{font-size:1.25rem;font-weight:700;color:var(--primary)}.profile-stat-label{font-size:.7rem;color:var(--text-muted);text-transform:uppercase}.alert{padding:1rem;border-radius:12px;margin-bottom:1rem;display:flex;align-items:center;gap:.75rem;font-size:.9rem}.alert-error{background:#fef2f2;border:1px solid #FECACA;color:#dc2626}.alert-success{background:#ecfdf5;border:1px solid #A7F3D0;color:#059669}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}@keyframes slideIn{0%{opacity:0;transform:translate(30px)}to{opacity:1;transform:translate(0)}}@keyframes slideOut{0%{opacity:1;transform:translate(0)}to{opacity:0;transform:translate(-30px)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.animate-fadeIn{animation:fadeIn .4s ease-out forwards}.animate-slideIn{animation:slideIn .4s ease-out forwards}.badge{display:inline-flex;padding:.25rem .75rem;border-radius:20px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.badge-primary{background:var(--primary-pale);color:var(--primary)}.badge-success{background:#ecfdf5;color:#059669}.footer{text-align:center;padding:1rem;color:var(--text-muted);font-size:.8rem;border-top:1px solid var(--border);background:var(--bg-primary)}@media (max-width: 768px){.header-content{flex-direction:column;gap:.75rem}.charts-grid{grid-template-columns:1fr}.onboarding-illustration{width:200px;height:200px;font-size:100px}.profile-header{flex-direction:column;text-align:center}.profile-stats{justify-content:center}}