:root{--sw-teal: #1cc29f;--sw-teal-dark: #17a888;--sw-charcoal: #373b3f;--sw-grey: #52595f;--sw-mint: #ace4d6;--sw-mint-bg: #eefaf6;--sw-dark-green: #0c3c32;--sw-coral: #ff692c;--sw-error: #d9534f;--sw-border: #e2e6e8;--sw-bg: #f6f8f8;--radius: 10px;--shadow: 0 1px 3px rgba(12, 60, 50, .08), 0 4px 16px rgba(12, 60, 50, .06)}*{box-sizing:border-box}html,body{margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--sw-bg);color:var(--sw-charcoal);line-height:1.45}.page{min-height:100vh;display:flex;flex-direction:column}.page-center{align-items:center;justify-content:center;padding:24px}h1{font-size:1.5rem;margin:0 0 4px}h2{font-size:1.05rem;margin:0 0 12px;color:var(--sw-dark-green);text-transform:uppercase;letter-spacing:.04em}.muted{color:var(--sw-grey);font-size:.9rem}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:#fff;border-bottom:1px solid var(--sw-border)}.wordmark{font-size:1.25rem;font-weight:700;color:var(--sw-teal);letter-spacing:-.02em}.wordmark span{color:var(--sw-charcoal);font-weight:500}.header-user{display:flex;align-items:center;gap:10px}.header-name{font-weight:600;font-size:.95rem}.avatar{width:32px;height:32px;border-radius:50%}.main{flex:1;width:100%;max-width:900px;margin:0 auto;padding:24px 20px 48px}.footer{text-align:center;padding:16px}.section{margin-top:28px}.btn{font:inherit;border:none;border-radius:var(--radius);padding:9px 16px;cursor:pointer;font-weight:600;transition:background .15s ease}.btn:disabled{opacity:.55;cursor:default}.btn-primary{background:var(--sw-teal);color:#fff}.btn-primary:hover:not(:disabled){background:var(--sw-teal-dark)}.btn-secondary{background:var(--sw-mint-bg);color:var(--sw-dark-green);border:1px solid var(--sw-mint)}.btn-ghost{background:transparent;color:var(--sw-grey)}.btn-ghost:hover:not(:disabled){color:var(--sw-charcoal)}.btn-lg{padding:12px 24px;font-size:1.05rem;width:100%}.card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow);padding:32px}.login-card{max-width:380px;text-align:center;display:flex;flex-direction:column;gap:16px}.login-card .wordmark{font-size:1.6rem}.alert{border-radius:var(--radius);padding:12px 16px;margin:12px 0;font-size:.95rem}.alert-error{background:#fdf0ef;color:var(--sw-error);border:1px solid #f3c9c7}.alert-success{background:var(--sw-mint-bg);color:var(--sw-dark-green);border:1px solid var(--sw-mint);font-weight:600}.group-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:18px}.group-card{font:inherit;background:#fff;border:1px solid var(--sw-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;display:flex;flex-direction:column;align-items:flex-start;gap:6px;cursor:pointer;text-align:left;transition:border-color .15s ease,transform .1s ease}.group-card:hover{border-color:var(--sw-teal);transform:translateY(-1px)}.group-avatar{width:44px;height:44px;border-radius:8px}.group-name{font-weight:700;font-size:1.05rem}.group-heading{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:8px}.entry-grid{display:flex;flex-direction:column;gap:12px}.entry-row{background:#fff;border:1px solid var(--sw-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px 16px;display:grid;grid-template-columns:1fr auto;grid-template-areas:"fields side" "members side";gap:10px 14px}.entry-saved{border-color:var(--sw-mint);background:var(--sw-mint-bg)}.entry-error{border-color:var(--sw-error)}.entry-fields{grid-area:fields;display:grid;grid-template-columns:2fr 1fr .7fr 1fr;gap:10px}.field{display:flex;flex-direction:column;gap:3px}.field-label{font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--sw-grey)}.field input{font:inherit;padding:8px 10px;border:1px solid var(--sw-border);border-radius:8px;background:#fff;color:var(--sw-charcoal);width:100%}.field input:focus{outline:2px solid var(--sw-teal);outline-offset:-1px;border-color:var(--sw-teal)}.field input:disabled{background:var(--sw-bg);color:var(--sw-grey)}.field select{font:inherit;padding:8px 10px;border:1px solid var(--sw-border);border-radius:8px;background:#fff;color:var(--sw-charcoal);width:100%;height:100%}.field select:focus{outline:2px solid var(--sw-teal);outline-offset:-1px;border-color:var(--sw-teal)}.field select:disabled{background:var(--sw-bg);color:var(--sw-grey)}.entry-members{grid-area:members;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;border:1px solid var(--sw-border);background:#fff;color:var(--sw-grey);font-size:.85rem;font-weight:600;cursor:pointer;-webkit-user-select:none;user-select:none;transition:all .12s ease}.chip input{position:absolute;opacity:0;pointer-events:none}.chip img{width:20px;height:20px;border-radius:50%;margin-left:-4px}.chip-on{background:var(--sw-teal);border-color:var(--sw-teal);color:#fff}.chip-you{background:var(--sw-dark-green);border-color:var(--sw-dark-green);color:#fff;cursor:default}.chip-disabled{cursor:default;opacity:.7}.split-count{font-size:.8rem}.entry-side{grid-area:side;display:flex;flex-direction:column;align-items:flex-end;justify-content:space-between;gap:6px;min-width:90px}.row-status{font-size:.82rem;font-weight:600;color:var(--sw-grey);text-align:right}.row-status-ok{color:var(--sw-teal-dark)}.row-status-err{color:var(--sw-error);max-width:180px}.btn-remove{padding:4px 8px}.btn-trash,.btn-remove{display:inline-flex;align-items:center;justify-content:center}.btn-trash:hover:not(:disabled),.btn-remove:hover:not(:disabled){color:var(--sw-error)}.spinner-sm{width:14px;height:14px;border-width:2px;margin:0;display:inline-block}.entry-actions{display:flex;gap:10px;margin-top:4px}.expense-list{list-style:none;margin:0;padding:0;background:#fff;border:1px solid var(--sw-border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}.expense-item{display:grid;grid-template-columns:90px 1fr auto auto;gap:12px;align-items:center;padding:12px 16px;border-bottom:1px solid var(--sw-border)}.expense-item:last-child{border-bottom:none}.expense-date{color:var(--sw-grey);font-size:.85rem}.expense-desc{display:flex;flex-direction:column}.expense-desc>span:first-child{font-weight:600}.expense-cost{font-weight:700;color:var(--sw-dark-green);white-space:nowrap}.expense-payment .expense-desc>span:first-child{font-weight:400;font-style:italic}.spinner{width:28px;height:28px;border:3px solid var(--sw-mint);border-top-color:var(--sw-teal);border-radius:50%;animation:spin .8s linear infinite;margin:24px auto}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 640px){.main{padding:16px 12px 40px}.header{padding:10px 12px}.header-name{display:none}.entry-row{grid-template-columns:1fr;grid-template-areas:"fields" "members" "side"}.entry-fields{grid-template-columns:1fr}.entry-side{flex-direction:row;align-items:center;justify-content:space-between;min-width:0}.entry-actions{flex-direction:column}.entry-actions .btn{width:100%}.expense-item{grid-template-columns:1fr auto auto}.expense-date{grid-column:1 / -1;padding-bottom:0}}