:root{--color-primary:#1e4a6d;--color-primary-light:#2d5f8b;--color-primary-dark:#6a82b0;--color-secondary:#7b94c5;--color-accent-orange:#e89757;--color-accent-green:#4a9d5f;--color-background:#e8e8e8;--color-background-light:#f5f5f5;--color-white:#fff;--color-text-dark:#2c3e50;--color-text-light:#7a8a99;--color-border:#d0d5dd;--color-gray-light:#b8c1cc;--spacing-xs:.5rem;--spacing-sm:1rem;--spacing-md:1.5rem;--spacing-lg:2rem;--spacing-xl:3rem;--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-size-xs:.75rem;--font-size-sm:.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.5rem;--font-size-2xl:2rem;--sidebar-width:190px;--header-height:80px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 3px rgba(0,0,0,.1);--shadow-md:0 4px 6px rgba(0,0,0,.1);--shadow-lg:0 10px 20px rgba(0,0,0,.15)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--color-background);color:var(--color-text-dark);font-family:var(--font-family);font-size:var(--font-size-base);line-height:1.6}h1,h2,h3,h4,h5,h6{color:var(--color-primary);font-weight:600;line-height:1.2}h1{font-size:var(--font-size-2xl)}h2{font-size:var(--font-size-xl)}h3{font-size:var(--font-size-lg)}p{color:var(--color-text-dark);margin-bottom:var(--spacing-sm)}.app-layout{display:flex;min-height:100vh}.main-content{background-color:var(--color-background);flex:1;margin-left:var(--sidebar-width);padding:var(--spacing-lg)}.container{margin:0 auto;max-width:1400px}.content-card{background:var(--color-white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:var(--spacing-lg)}.btn{border:none;border-radius:var(--radius-md);cursor:pointer;display:inline-block;font-family:var(--font-family);font-size:var(--font-size-base);font-weight:500;padding:.75rem 2rem;text-align:center;text-decoration:none;transition:all .3s ease}.btn-primary{background-color:var(--color-secondary);color:var(--color-white)}.btn-primary:hover{background-color:#6a82b0;box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-large{font-size:var(--font-size-lg);padding:1rem 3rem}.data-table{background:var(--color-white);border-collapse:collapse;border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;width:100%}.data-table thead{background-color:var(--color-secondary);color:var(--color-white)}.data-table th{font-size:var(--font-size-sm);font-weight:600;letter-spacing:.5px;padding:1rem;text-align:left;text-transform:uppercase}.data-table td{border-bottom:1px solid var(--color-border);padding:1rem}.data-table tbody tr:hover{background-color:var(--color-background-light)}.data-table tbody tr:last-child td{border-bottom:none}.form-group{margin-bottom:var(--spacing-md)}.form-label{color:var(--color-primary);display:block;font-size:var(--font-size-sm);font-weight:600;letter-spacing:.5px;margin-bottom:var(--spacing-xs);text-transform:uppercase}.form-input{border:1px solid var(--color-border);border-radius:var(--radius-sm);font-family:var(--font-family);font-size:var(--font-size-base);padding:.75rem 1rem;transition:border-color .2s ease;width:100%}.form-input:focus{border-color:var(--color-secondary);outline:none}.form-grid{display:grid;gap:var(--spacing-md);grid-template-columns:1fr 1fr}.form-grid-full{grid-column:1/-1}.card-grid{display:grid;gap:var(--spacing-md);grid-template-columns:repeat(auto-fit,minmax(250px,1fr));margin-top:var(--spacing-lg)}.task-card{background:var(--color-white);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);cursor:pointer;padding:var(--spacing-md);text-align:center;transition:all .3s ease}.task-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.task-card-icon{font-size:3rem;margin-bottom:var(--spacing-sm)}.task-card-title{font-size:var(--font-size-sm);font-weight:700;letter-spacing:.5px;margin-bottom:var(--spacing-xs);text-transform:uppercase}.task-card-description{color:var(--color-text-dark);font-size:var(--font-size-xs);line-height:1.4}.task-card-date{color:var(--color-accent-green);margin-top:var(--spacing-xs)}.status-badge,.task-card-date{font-size:var(--font-size-xs);font-weight:600}.status-badge{border-radius:12px;display:inline-block;padding:.25rem .75rem}.status-badge.invite-sent{background-color:#fff3e0;color:#e65100}.status-badge.open{background-color:#e8f5e9;color:#2e7d32}.status-badge.closed{background-color:#e0e0e0;color:#616161}.date-display{font-style:italic;letter-spacing:.5px;text-transform:uppercase}.breadcrumb,.date-display{color:var(--color-text-light);font-size:var(--font-size-sm)}.breadcrumb{margin-bottom:var(--spacing-sm)}.breadcrumb a{color:var(--color-secondary);text-decoration:none;text-transform:uppercase}.breadcrumb a:hover{text-decoration:underline}.breadcrumb span{margin:0 .5rem}.checkbox-list{display:flex;flex-direction:column;gap:var(--spacing-md)}.checkbox-item{align-items:flex-start;background:var(--color-background-light);border-radius:var(--radius-md);cursor:pointer;display:flex;justify-content:space-between;padding:var(--spacing-md);transition:all .2s ease}.checkbox-item:hover{background:#e0e5ea}.checkbox-item.completed{background:#e8f5e9}.checkbox-item-content h4{color:var(--color-primary);font-size:var(--font-size-base);font-weight:700;margin-bottom:var(--spacing-xs);text-transform:uppercase}.checkbox-item-content p{color:var(--color-text-dark);font-size:var(--font-size-sm);margin:0}.checkbox-icon{color:var(--color-accent-green);font-size:1.5rem}.text-center{text-align:center}.text-uppercase{letter-spacing:.5px;text-transform:uppercase}.mt-1{margin-top:var(--spacing-xs)}.mt-2{margin-top:var(--spacing-sm)}.mt-3{margin-top:var(--spacing-md)}.mt-4{margin-top:var(--spacing-lg)}.mb-1{margin-bottom:var(--spacing-xs)}.mb-2{margin-bottom:var(--spacing-sm)}.mb-3{margin-bottom:var(--spacing-md)}.mb-4{margin-bottom:var(--spacing-lg)}.p-1{padding:var(--spacing-xs)}.p-2{padding:var(--spacing-sm)}.p-3{padding:var(--spacing-md)}.p-4{padding:var(--spacing-lg)}@media(max-width:768px){.main-content{margin-left:0;padding:var(--spacing-sm)}.card-grid,.form-grid{grid-template-columns:1fr}}