:root{color-scheme:light dark;--bg:var(--tg-theme-secondary-bg-color,#f5f6fa);--card:var(--tg-theme-bg-color,#fff);--text:var(--tg-theme-text-color,#202636);--muted:var(--tg-theme-hint-color,#737b8b);--accent:var(--tg-theme-button-color,#5364df);--on-accent:var(--tg-theme-button-text-color,#fff);--line:color-mix(in srgb,var(--text) 12%,transparent);--good:#1c6f52;--bad:#c0392f;--tint:14%}
/* A green tuned for white is unreadable once the ground goes dark. */
:root[data-scheme=dark]{--good:#5fd6a4;--bad:#ff8a92;--tint:20%}
*{box-sizing:border-box}
:root.locked{height:100%;overflow:hidden;overscroll-behavior:none}:root.locked body{position:fixed;top:var(--locked-top);left:var(--locked-left);width:var(--locked-width)}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;padding-top:var(--tg-content-safe-area-inset-top,0px)}
h1{font-size:23px;line-height:1.2;margin:2px 0}h2{font-size:23px;line-height:1.3;margin:4px 0 12px}h3{font-size:17px;margin:0}small,.muted{color:var(--muted);font-size:13px}
main{max-width:760px;margin:auto;padding:20px 20px 110px}
button,input,select{font:inherit}button{border:0;border-radius:12px;background:var(--accent);color:var(--on-accent);padding:12px 17px;font-weight:600;cursor:pointer;min-height:44px;touch-action:manipulation}button:disabled{opacity:.5;cursor:wait}button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.quiet{background:transparent;color:var(--accent)}.secondary{background:var(--bg);color:var(--text);border:1px solid var(--line)}.danger{color:var(--bad);background:transparent}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}.actions>*{flex:1}
.card{padding:18px;background:var(--card);border:1px solid var(--line);border-radius:18px;margin:12px 0}
.cards{list-style:none;margin:0;padding:0}
.group{display:flex;align-items:center;gap:14px;width:100%;text-align:left;color:var(--text);font-weight:400}.group .icon{height:44px;width:44px;border-radius:14px;background:var(--bg);display:grid;place-items:center;font-size:23px;flex-shrink:0}.group .arrow{margin-left:auto;color:var(--muted)}.title{display:block;font-size:17px;font-weight:650}
.empty{padding:40px 22px;text-align:center;color:var(--muted);background:var(--card);border-radius:20px;margin:16px 0}.empty button{margin-top:14px}
.hero{background:var(--accent);color:var(--on-accent);border-radius:20px;padding:22px;margin:10px 0 24px}.hero small{color:inherit;opacity:.8}.hero strong{display:block;font-size:30px;letter-spacing:-1px}
.row{display:flex;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:1px solid var(--line)}.row:last-child{border-bottom:0}.row span:first-child{overflow-wrap:anywhere}
.amount{white-space:nowrap;font-variant-numeric:tabular-nums;font-weight:650}.positive{color:var(--good)}.negative{color:var(--bad)}
.section-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:24px}.section-title:first-child{margin-top:0}.section-title h2{margin:0}
.tools{display:flex;gap:4px;align-items:center;flex-shrink:0}.icon-button{font-size:20px;line-height:1;padding:9px 12px;min-height:40px}
.filters{display:flex;gap:8px;margin:0 0 12px}.filters input{flex:2;min-width:0}.filters select{flex:1;min-width:0}
.filters{flex-wrap:wrap}.filters input{flex-basis:100%}
.receipt-section{margin-top:24px;padding-top:16px;border-top:1px solid var(--line)}
.receipt-image{display:block;max-width:100%;height:auto;border-radius:12px;margin-top:16px}
.history-event .amount{white-space:normal;text-align:right;overflow-wrap:anywhere}
.queue-status{font-weight:600;margin-bottom:4px}
/* A date band the day's expenses hang under, with that day's subtotal. */
.day{display:flex;justify-content:space-between;gap:12px;align-items:baseline;margin:20px 2px 6px;font-size:14px;color:var(--muted)}.day .amount{font-size:14px;color:var(--muted);font-weight:600}
.queued{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 16px;border-color:var(--accent)}
nav{position:fixed;bottom:0;left:0;right:0;padding:12px 20px calc(12px + env(safe-area-inset-bottom));display:flex;gap:8px;justify-content:center;background:var(--card);border-top:1px solid var(--line)}nav button{background:transparent;color:var(--muted);max-width:350px;flex:1}nav button.active{background:var(--bg);color:var(--accent)}
dialog{position:fixed;top:var(--visible-top,0px);bottom:var(--keyboard-bottom,0px);left:0;right:0;margin:auto;width:calc(100% - 24px);max-width:540px;max-height:calc(var(--visible-height,100dvh) - 32px);overflow:auto;overscroll-behavior:contain;border:1px solid var(--line);border-radius:22px;background:var(--card);color:var(--text);padding:24px}dialog::backdrop{background:#10182b88}dialog #close-modal{display:block;margin:12px auto 0}
label{display:block;font-size:14px;margin:16px 0 6px}input,select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--line);padding:12px;border-radius:10px;min-height:46px;font-size:16px}input[type=checkbox]{width:22px;min-height:22px;margin:0;accent-color:var(--accent)}
.participant{display:flex;align-items:center;gap:10px}.participant input[type=text]{margin-left:auto;width:110px;text-align:right}.participant span{overflow-wrap:anywhere}
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0 4px}.chip{background:var(--bg);color:var(--accent);border:1px solid var(--line);border-radius:999px;padding:7px 14px;min-height:36px;font-size:14px}
/* The running total follows the form down: the participant list alone is
   taller than the dialog on a phone, and the total is what you watch. */
.tally{position:sticky;bottom:-1px;z-index:1;margin:14px 0 0;padding:11px 14px;border-radius:12px;background:var(--bg);border:1px solid var(--line);font-size:14px;font-variant-numeric:tabular-nums}
.tally.ok{background:color-mix(in srgb,var(--good) var(--tint),var(--card));border-color:color-mix(in srgb,var(--good) 35%,transparent);color:var(--good)}
.tally.warn{background:color-mix(in srgb,var(--bad) var(--tint),var(--card));border-color:color-mix(in srgb,var(--bad) 35%,transparent);color:var(--bad)}
.hint{color:var(--muted);font-size:13px;margin:6px 0 0}
.wide{width:100%;margin-top:18px}
#notice{position:fixed;bottom:calc(var(--keyboard-bottom,0px) + 90px);left:20px;right:20px;max-width:700px;margin:auto;padding:15px 20px;background:var(--text);color:var(--card);border-radius:14px;z-index:5;box-shadow:0 6px 25px #0002}
p{overflow-wrap:anywhere}.intro{margin:0 0 20px;color:var(--muted)}
.expense{display:block;width:100%;text-align:left;color:var(--text);font-weight:400}.expense .row{padding:0;border-bottom:0}
.skeleton{height:78px;border:1px solid var(--line);background:linear-gradient(100deg,var(--card) 35%,color-mix(in srgb,var(--text) 7%,var(--card)) 50%,var(--card) 65%);background-size:300% 100%;animation:shimmer 1.3s linear infinite}
@keyframes shimmer{from{background-position:150% 0}to{background-position:-150% 0}}
@media(prefers-reduced-motion:no-preference){button{transition:opacity .15s,background .15s}}
@media(prefers-reduced-motion:reduce){.skeleton{animation:none}}
@media(max-width:380px){main{padding-left:12px;padding-right:12px}h2{font-size:20px}.amount{font-size:14px}.participant input[type=text]{width:92px}}