*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #6366f1;--secondary-color: #8b5cf6;--background-color: #ffffff;--surface-color: #f9fafb;--text-color: #1f2937;--text-secondary: #6b7280;--border-color: #e5e7eb;--error-color: #ef4444;--success-color: #10b981;--nav-height: 60px}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--background-color);color:var(--text-color)}#root{min-height:100vh;display:flex;flex-direction:column}.container{width:100%;max-width:100%;padding:1rem;margin:0 auto}@media(min-width:768px){.container{max-width:768px;padding:1.5rem}}@media(min-width:1024px){.container{max-width:1024px;padding:2rem}}.auth-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:1rem;background:linear-gradient(135deg,var(--primary-color) 0%,var(--secondary-color) 100%)}.auth-card{background:var(--background-color);border-radius:12px;padding:2rem;width:100%;max-width:400px;box-shadow:0 10px 30px #0000001a}.auth-title{font-size:1.875rem;font-weight:700;margin-bottom:.5rem;text-align:center;color:var(--text-color)}.auth-subtitle{font-size:.875rem;color:var(--text-secondary);text-align:center;margin-bottom:2rem}.form-group{margin-bottom:1.25rem}.form-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-color);margin-bottom:.5rem}.form-input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;transition:border-color .2s}.form-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #6366f11a}.btn{display:block;width:100%;padding:.875rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--primary-color);color:#fff}.btn-primary:hover{background:#4f46e5;transform:translateY(-1px);box-shadow:0 4px 12px #6366f166}.btn-primary:active{transform:translateY(0)}.auth-link{text-align:center;margin-top:1.5rem;font-size:.875rem;color:var(--text-secondary)}.auth-link a{color:var(--primary-color);text-decoration:none;font-weight:600}.auth-link a:hover{text-decoration:underline}.error-message{background:#fee;color:var(--error-color);padding:.75rem;border-radius:8px;margin-bottom:1rem;font-size:.875rem;text-align:center}.app-container{display:flex;flex-direction:column;min-height:100vh}.app-header{background:var(--background-color);border-bottom:1px solid var(--border-color);padding:1rem;position:sticky;top:0;z-index:100;box-shadow:0 1px 3px #0000000d}.app-header-content{display:flex;justify-content:space-between;align-items:center;max-width:1024px;margin:0 auto}.app-title{font-size:1.25rem;font-weight:700;color:var(--primary-color)}.app-logout{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:.875rem;padding:.5rem 1rem;border-radius:6px;transition:all .2s}.app-logout:hover{background:var(--surface-color);color:var(--text-color)}.app-content{flex:1;padding-bottom:calc(var(--nav-height) + 1rem);overflow-y:auto}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:var(--nav-height);background:var(--background-color);border-top:1px solid var(--border-color);display:flex;justify-content:space-around;align-items:center;padding:.5rem 0;box-shadow:0 -2px 10px #0000000d;z-index:100}.nav-item{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:.5rem;text-decoration:none;color:var(--text-secondary);transition:color .2s;cursor:pointer}.nav-item:hover,.nav-item.active{color:var(--primary-color)}.nav-icon{font-size:1.5rem;margin-bottom:.25rem}.nav-label{font-size:.75rem;font-weight:500}.page{padding:1.5rem 1rem;max-width:1024px;margin:0 auto}.page-title{font-size:1.75rem;font-weight:700;color:var(--text-color);margin-bottom:.5rem}.page-subtitle{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem}.card{background:var(--background-color);border:1px solid var(--border-color);border-radius:12px;padding:1.5rem;margin-bottom:1rem;box-shadow:0 1px 3px #0000000d}.card-title{font-size:1.125rem;font-weight:600;color:var(--text-color);margin-bottom:.75rem}.card-content{color:var(--text-secondary);line-height:1.5}.card-grid{display:grid;grid-template-columns:1fr;gap:1rem;margin-top:1.5rem}@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr)}}.stat-card{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;border:none}.stat-value{font-size:2.5rem;font-weight:700;margin-bottom:.5rem}.stat-label{font-size:.875rem;opacity:.9}.list{list-style:none}.list-item{background:var(--background-color);border:1px solid var(--border-color);border-radius:8px;padding:1rem;margin-bottom:.75rem;display:flex;align-items:center;transition:all .2s}.list-item:hover{box-shadow:0 4px 12px #0000001a;transform:translateY(-2px)}.list-item-avatar{width:48px;height:48px;border-radius:50%;background:var(--primary-color);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;margin-right:1rem}.list-item-content{flex:1}.list-item-title{font-weight:600;color:var(--text-color);margin-bottom:.25rem}.list-item-subtitle{font-size:.875rem;color:var(--text-secondary)}.badge{display:inline-block;padding:.25rem .75rem;border-radius:12px;font-size:.75rem;font-weight:600}.badge-primary{background:#6366f11a;color:var(--primary-color)}.badge-success{background:#10b9811a;color:var(--success-color)}.loading{display:flex;align-items:center;justify-content:center;min-height:200px;color:var(--text-secondary)}.landing-container{min-height:100vh;background:var(--background-color)}.landing-hero{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;padding:4rem 1.5rem;text-align:center}.landing-title{font-size:2.5rem;font-weight:700;margin-bottom:1rem}.landing-subtitle{font-size:1.125rem;margin-bottom:2rem;opacity:.95;max-width:600px;margin-left:auto;margin-right:auto}.btn-large{padding:1rem 2rem;font-size:1.125rem}.btn-secondary{background:#fff;color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover{background:var(--surface-color)}.landing-section{padding:3rem 1.5rem;max-width:1200px;margin:0 auto}.landing-how{background:var(--surface-color)}.landing-cta{background:linear-gradient(135deg,var(--primary-color),var(--secondary-color));color:#fff;text-align:center}.section-title{font-size:2rem;font-weight:700;text-align:center;margin-bottom:2rem;color:var(--text-color)}.landing-cta .section-title{color:#fff}.cta-subtitle{font-size:1.125rem;margin-bottom:2rem;opacity:.95}.cta-buttons{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}.cta-buttons .btn{width:auto;min-width:200px}.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-top:2rem}.feature-card{background:#fff;border:1px solid var(--border-color);border-radius:12px;padding:2rem;text-align:center;transition:all .3s}.feature-card:hover{transform:translateY(-5px);box-shadow:0 10px 30px #0000001a}.feature-icon{font-size:3rem;margin-bottom:1rem}.feature-card h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--text-color)}.feature-card p{color:var(--text-secondary);font-size:.875rem}.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:2rem;margin-top:2rem}.step{text-align:center}.step-number{width:60px;height:60px;border-radius:50%;background:var(--primary-color);color:#fff;font-size:1.5rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 1rem}.step h3{font-size:1.25rem;font-weight:600;margin-bottom:.5rem;color:var(--text-color)}.step p{color:var(--text-secondary);font-size:.875rem}.cohort-card{max-width:500px}.cohort-description{text-align:center;color:var(--text-secondary);margin-bottom:2rem;font-size:.875rem}.cohort-options{margin-bottom:1.5rem}.cohort-option{display:flex;align-items:center;padding:1rem;border:2px solid var(--border-color);border-radius:8px;margin-bottom:.75rem;cursor:pointer;transition:all .2s}.cohort-option:hover{border-color:var(--primary-color);background:var(--surface-color)}.cohort-option.selected{border-color:var(--primary-color);background:#6366f10d}.cohort-option input[type=radio]{margin-right:1rem;cursor:pointer}.cohort-option-content{flex:1}.cohort-option-label{font-weight:600;color:var(--text-color);margin-bottom:.25rem}.cohort-option-description{font-size:.875rem;color:var(--text-secondary)}.today-header{text-align:center;margin-bottom:1.5rem}.task-card{transition:all .2s}.task-card.completed{opacity:.7;background:var(--surface-color)}.task-card .btn{margin-top:1rem}.btn-completed{background:var(--success-color);color:#fff;cursor:default}.btn-completed:hover{background:var(--success-color);transform:none}.btn:disabled{opacity:.6;cursor:not-allowed}.success-card{background:linear-gradient(135deg,var(--success-color),#059669);color:#fff;border:none;text-align:center}.success-message{font-size:1.125rem;font-weight:600}.progress-stats{display:flex;flex-direction:column;gap:.75rem}.progress-stat{padding-bottom:.75rem;border-bottom:1px solid var(--border-color)}.progress-stat:last-child{border-bottom:none;padding-bottom:0}.upcoming-task{padding:.75rem 0;border-bottom:1px solid var(--border-color)}.upcoming-task:last-child{border-bottom:none}.achievement{display:flex;align-items:center;padding:1rem;border-radius:8px;margin-bottom:.75rem;border:1px solid var(--border-color);transition:all .2s}.achievement.unlocked{background:#10b9810d;border-color:var(--success-color)}.achievement.locked{opacity:.5}.achievement-icon{font-size:2rem;margin-right:1rem}.achievement-info{flex:1}.achievement-info strong{display:block;margin-bottom:.25rem;color:var(--text-color)}.achievement-description{font-size:.875rem;color:var(--text-secondary)}.achievement-badge{font-size:1.5rem;color:var(--success-color)}.activity-item{display:flex;justify-content:space-between;align-items:center;padding:.75rem 0;border-bottom:1px solid var(--border-color)}.activity-item:last-child{border-bottom:none}@media(min-width:768px){.bottom-nav{display:none}.app-content{padding-bottom:1rem}.page{padding:2rem}.landing-title{font-size:3.5rem}.landing-subtitle{font-size:1.25rem}}