/* Split expenses: balances first, then the activity; the form and settle-up open in place. */
.sx-page{--sx-accent:var(--theme-accent,var(--teal-700));--sx-soft:var(--theme-tint,var(--mint-soft,#eaf7f4));--sx-card:var(--theme-surface,var(--paper,#fffdfa));--sx-owe:#b4452e;--sx-owe-soft:#fbeae4;--sx-owed:#0f7a64;--sx-owed-soft:#e3f6ef;max-width:1180px}
.sx-page svg{width:20px;height:20px;flex:0 0 auto}
.sx-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:24px 40px;flex-wrap:wrap;margin:0 0 24px}
.sx-hero>div:first-child{max-width:680px}
.sx-hero .eyebrow{margin:0 0 8px}
.sx-hero h1{margin:0 0 10px;font-size:clamp(2rem,4vw,3rem);line-height:1.08;letter-spacing:-.02em}
.sx-hero-compact h1{font-size:clamp(1.9rem,3.2vw,2.5rem)}
.sx-hero p{margin:0;color:var(--muted);font-size:1rem;line-height:1.55}
.sx-stats{display:flex;align-items:stretch;gap:8px;flex-wrap:wrap}
.sx-stat{min-width:120px;padding:10px 14px;display:grid;gap:2px;border-radius:14px;background:var(--sx-card);box-shadow:0 2px 10px rgba(9,47,69,.05)}
.sx-stat strong{font-size:1.35rem;line-height:1.1;font-variant-numeric:tabular-nums}
.sx-stat span{font-size:.74rem;font-weight:700;color:var(--muted)}
.sx-stat-owe strong{color:var(--sx-owe)}.sx-stat-owed strong{color:var(--sx-owed)}
.sx-new{display:inline-flex;align-items:center;gap:8px;align-self:center}
.sx-icon-button{width:44px;min-height:44px;align-self:stretch;display:grid;place-items:center;border:0;border-radius:14px;background:var(--theme-soft,#eef3f1);color:var(--muted);cursor:pointer;font-size:1.3rem}
.sx-icon-button:hover{color:var(--sx-accent)}
.sx-feedback{margin:-10px 0 14px;min-height:1.4em;font-size:.88rem;font-weight:600;color:var(--sx-accent)}
.sx-feedback:empty{min-height:0;margin:0}
.sx-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}
.sx-main,.sx-side{display:grid;gap:18px;min-width:0}
.sx-side{position:sticky;top:16px}
.sx-card{padding:20px 22px;border-radius:var(--radius,18px);background:var(--sx-card);box-shadow:0 1px 2px rgba(9,47,69,.05),0 6px 22px rgba(9,47,69,.05)}
.sx-card h2{margin:0 0 12px;font-size:1.15rem}
.sx-section-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.sx-section-head h2{margin:0}
.sx-list{display:grid;gap:10px}
.sx-empty{margin:4px 0;color:var(--muted);font-size:.95rem}
.sx-note{margin:12px 0 0;color:var(--muted);font-size:.86rem;line-height:1.5}
.sx-link{display:inline-block;margin-top:12px;font-weight:700;color:var(--sx-accent);text-decoration:none}
.sx-how{margin:0;padding:0;list-style:none;display:grid;gap:10px}
.sx-how li{display:flex;gap:12px;align-items:flex-start}
.sx-how li span{flex:0 0 28px;height:28px;display:grid;place-items:center;border-radius:50%;background:var(--sx-soft);color:var(--sx-accent);font-weight:800;font-size:.85rem}
.sx-how p{margin:3px 0 0;font-size:.92rem;line-height:1.45}
/* People */
.sx-person{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:12px;align-items:center;padding:12px 14px;border-radius:16px;background:var(--theme-soft,#f3f7f6)}
.sx-person.is-owed{background:var(--sx-owed-soft)}.sx-person.is-owing{background:var(--sx-owe-soft)}
.sx-avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;background:var(--sx-soft);color:var(--sx-accent);font-weight:800;overflow:hidden;flex:0 0 40px}
.sx-avatar img{width:100%;height:100%;object-fit:cover;display:block}
.sx-person-text{display:grid;gap:2px;min-width:0}
.sx-person-text strong{font-size:.98rem;line-height:1.3}
.sx-person-text small{color:var(--muted)}
.sx-person-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.sx-settle-slot{grid-column:1/-1}
.sx-settle-slot:empty{display:none}
/* Activity rows */
.sx-filter{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sx-chip{border:1.5px solid var(--line,#d7e2df);background:transparent;border-radius:999px;padding:6px 12px;font:inherit;font-size:.84rem;font-weight:700;color:var(--muted);cursor:pointer}
.sx-chip.is-on{background:var(--sx-soft);border-color:var(--sx-accent);color:var(--sx-accent)}
.sx-pair-balance{font-size:.88rem;font-weight:700}
.sx-row{display:grid;grid-template-columns:36px minmax(0,1fr);gap:12px;padding:12px 14px;border-radius:16px;border:1px solid var(--line,#e3ebe8)}
.sx-row-icon{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;background:var(--sx-soft);color:var(--sx-accent)}
.sx-settlement .sx-row-icon{background:var(--theme-soft,#eef3f1);color:var(--muted)}
.sx-row-main{display:grid;gap:4px;min-width:0}
.sx-row-head{display:flex;justify-content:space-between;gap:12px;align-items:baseline}
.sx-row-head h3{margin:0;font-size:1rem;line-height:1.3}
.sx-amount{font-variant-numeric:tabular-nums;white-space:nowrap}
.sx-row-line{margin:0;font-size:.92rem}
.sx-expense.is-owed .sx-stance{color:var(--sx-owed);font-weight:700}.sx-expense.is-owing .sx-stance{color:var(--sx-owe);font-weight:700}
.sx-row-meta{margin:0;font-size:.82rem;color:var(--muted)}
.sx-shares summary{cursor:pointer;font-size:.84rem;font-weight:700;color:var(--sx-accent);list-style:none}
.sx-shares summary::-webkit-details-marker{display:none}
.sx-shares ul{margin:8px 0 0;padding:0;list-style:none;display:grid;gap:6px}
.sx-shares li{display:grid;grid-template-columns:28px minmax(0,1fr) auto;gap:10px;align-items:center;font-size:.9rem}
.sx-shares li .sx-avatar{width:28px;height:28px;flex-basis:28px;font-size:.8rem}
.sx-shares li.sx-payer span::after{content:" ·";color:var(--muted)}
.sx-row-actions{display:flex;gap:14px;margin-top:4px}
.sx-text-button{display:inline-flex;align-items:center;gap:6px;border:0;background:none;padding:4px 0;font:inherit;font-size:.86rem;font-weight:700;color:var(--sx-accent);cursor:pointer;min-height:32px}
.sx-text-button svg{width:16px;height:16px}
.sx-danger{color:var(--sx-owe)}
.sx-more{justify-self:start;margin-top:10px}
/* Forms */
.sx-form-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}
.sx-form-head h2{margin:0}
.sx-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 14px}
.sx-grid label,.sx-form>label,.sx-settle label{display:grid;gap:4px;font-size:.86rem;font-weight:700;color:var(--muted)}
.sx-grid input,.sx-grid select,.sx-form textarea,.sx-search input,.sx-settle input[type=text],.sx-settle input:not([type]),.sx-shares input{font:inherit;font-size:1rem;color:inherit;padding:10px 12px;border-radius:12px;border:1.5px solid var(--line,#d7e2df);background:var(--theme-surface,#fff);min-height:44px}
.sx-wide{grid-column:1/-1}
.sx-check{flex-direction:row;display:flex!important;align-items:center;gap:10px;align-self:end;min-height:44px}
.sx-check input{width:20px;height:20px;accent-color:var(--sx-accent)}
.sx-with{margin-top:14px;display:grid;gap:8px}
.sx-label{font-size:.86rem;font-weight:700;color:var(--muted)}
.sx-picks{display:flex;flex-wrap:wrap;gap:8px}
.sx-picks:empty{display:none}
.sx-pick{display:inline-flex;align-items:center;gap:8px;padding:4px 6px 4px 4px;border-radius:999px;background:var(--sx-soft);font-size:.9rem;font-weight:600}
.sx-pick .sx-avatar{width:28px;height:28px;flex-basis:28px;font-size:.8rem}
.sx-pick-remove{border:0;background:none;font-size:1.1rem;line-height:1;width:28px;height:28px;border-radius:50%;cursor:pointer;color:var(--muted)}
.sx-search{position:relative}
.sx-search input{width:100%}
.sx-picker{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:5;max-height:260px;overflow:auto;padding:6px;border-radius:14px;background:var(--sx-card);box-shadow:0 12px 40px rgba(9,47,69,.18);display:grid;gap:2px}
.sx-picker[hidden]{display:none}
.sx-option{display:grid;grid-template-columns:32px minmax(0,1fr) auto;gap:10px;align-items:center;width:100%;border:0;background:none;padding:8px;border-radius:10px;font:inherit;text-align:left;cursor:pointer}
.sx-option:hover,.sx-option:focus-visible{background:var(--sx-soft)}
.sx-option .sx-avatar{width:32px;height:32px;flex-basis:32px;font-size:.85rem}
.sx-option small{color:var(--muted)}
.sx-mode,.sx-shares,.sx-settle-row{display:flex;flex-wrap:wrap;gap:8px 18px;margin:14px 0 0;padding:0;border:0}
.sx-mode legend,.sx-shares legend{font-size:.86rem;font-weight:700;color:var(--muted);padding:0;margin-bottom:6px;width:100%}
.sx-mode label,.sx-settle-row label:has(input[type=radio]){display:inline-flex;align-items:center;gap:8px;font-weight:600;min-height:40px}
.sx-mode input,.sx-settle-row input[type=radio]{accent-color:var(--sx-accent);width:18px;height:18px}
.sx-shares label{display:grid;gap:4px;font-size:.86rem;font-weight:700;color:var(--muted);min-width:150px}
.sx-shares-left{width:100%;margin:4px 0 0;font-size:.86rem;font-weight:700;color:var(--sx-owed)}
.sx-shares-left.is-over{color:var(--sx-owe)}
.sx-form>label{margin-top:14px}
.sx-form-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.sx-settle{margin-top:10px;padding:14px;border-radius:14px;background:var(--sx-card);border:1px solid var(--line,#e3ebe8)}
.sx-settle h3{margin:0 0 4px;font-size:1rem}
.sx-help{margin:0 0 8px;font-size:.84rem;color:var(--muted)}
.sx-settle-row{margin-top:8px;align-items:end}
.sx-grow{flex:1 1 200px}
.sx-signed-out{display:grid;gap:18px}
.sx-signin{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
@media (max-width:860px){.sx-layout{grid-template-columns:minmax(0,1fr)}.sx-side{position:static}.sx-grid{grid-template-columns:minmax(0,1fr)}.sx-person{grid-template-columns:40px minmax(0,1fr)}.sx-person-actions{grid-column:2;justify-content:flex-start}}