/* Split by Avyqo — same graphite, silver and blue as avyqo.app. System fonts only. */
:root {
  --ink: #101113; --paper: #fafafa; --mist: #ededf0; --card: #fff; --grey: #5f6066; --line: #dedee1; --line-2: #c8c9cf;
  --blue: #485cff; --blue-dark: #3546d8; --blue-soft: #e8eaff; --good: #1f7a4c; --good-soft: #e3f3ea; --bad: #a23a2a;
  --sans: "Helvetica Neue", Helvetica, Arial, ui-sans-serif, system-ui, sans-serif; --ease: cubic-bezier(.22,1,.36,1);
  --pad: clamp(16px, 4vw, 56px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 16px/1.55 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
a { color: inherit; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 400; }
button, input, select { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 12px; top: -60px; background: #fff; padding: 10px 14px; border-radius: 8px; z-index: 10; }
.skip:focus { top: 10px; }

.top { display: flex; justify-content: space-between; align-items: center; height: 68px; padding: 0 var(--pad); background: var(--ink); color: #fff; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 26px; font-weight: 700; letter-spacing: -.04em; text-decoration: none; }
.mark { display: grid; place-items: center; width: 32px; height: 32px; border-radius: 9px; background: #fff; color: var(--ink); font-size: 22px; font-weight: 400; }
.by { color: #c4c5ca; font-size: 14px; text-decoration: none; padding: 8px 14px; border: 1px solid #ffffff30; border-radius: 100px; }
.by:hover { color: #fff; border-color: #ffffff70; }
.top :focus-visible { outline-color: #a7b1ff; }

.intro { padding: clamp(36px, 6vw, 72px) var(--pad) clamp(24px, 4vw, 40px); max-width: 980px; }
.intro h1 { font-size: clamp(40px, 6vw, 76px); line-height: 1; letter-spacing: -.055em; margin-bottom: 20px; }
.intro h1 span { color: #85868c; }
.intro p { color: var(--grey); font-size: 18px; max-width: 42em; }
.warn { color: var(--bad); }

.layout { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(320px, 1fr); gap: clamp(16px, 2.5vw, 32px); padding: 0 var(--pad) 56px; align-items: start; }
.editor { display: grid; gap: 16px; }
.panel { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: clamp(18px, 2.5vw, 28px); }
.panel h2, .results h2 { display: flex; align-items: center; gap: 12px; font-size: 22px; letter-spacing: -.02em; margin-bottom: 18px; }
.step { display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--ink); color: #fff; font-size: 13px; flex: none; }
.hint { color: var(--grey); margin-bottom: 14px; }
.opt { color: var(--grey); font-size: 12px; margin-left: 4px; }
.fine { color: var(--grey); font-size: 13px; }

.field { display: grid; gap: 6px; font-size: 13px; color: #45464c; min-width: 0; }
input[type=text], input[type=url], select { width: 100%; min-height: 44px; padding: 0 12px; border: 1px solid var(--line-2); border-radius: 10px; background: #fff; transition: border-color .15s; }
input:hover, select:hover { border-color: #9a9ba3; }
input[aria-invalid=true] { border-color: var(--bad); }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.err { color: var(--bad); font-size: 12.5px; min-height: 0; }
.err:empty { display: none; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border-radius: 100px; border: 1px solid var(--ink); background: var(--ink); color: #fff; cursor: pointer; text-decoration: none; font-size: 15px; transition: background .15s, transform .15s var(--ease); white-space: nowrap; }
.btn:hover { background: #33363d; }
.btn:active { transform: scale(.985); }
.btn.primary { background: var(--blue); border-color: var(--blue); }
.btn.primary:hover { background: var(--blue-dark); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line-2); }
.btn.ghost:hover { background: var(--mist); }
.btn.small { min-height: 38px; padding: 0 14px; font-size: 14px; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.icon-btn { flex: none; width: 40px; height: 40px; border-radius: 50%; border: 1px solid transparent; background: transparent; font-size: 22px; line-height: 1; color: var(--grey); cursor: pointer; }
.icon-btn:hover { background: var(--mist); color: var(--ink); }

.people, .expenses, .settlements { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.people:not(:empty) { margin-bottom: 14px; }
.person { border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.person-row { display: flex; align-items: center; gap: 10px; }
.avatar { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--blue-soft); color: #2f3a86; font-weight: 600; flex: none; }
.pay-details { margin: 8px 0 0 46px; }
.pay-details summary { cursor: pointer; font-size: 14px; color: #45464c; min-height: 32px; display: flex; align-items: center; }
.pay-details[open] { display: grid; gap: 10px; }
.inline-add { display: flex; gap: 10px; }
.inline-add input { flex: 1; }

.expenses:not(:empty) { margin-bottom: 14px; }
.expense { border: 1px solid var(--line); border-radius: 14px; padding: 14px; display: grid; gap: 12px; animation: pop .25s var(--ease); }
.exp-row { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, .8fr) minmax(0, 1fr) auto; gap: 10px; align-items: end; }
.shares { border: 0; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.shares legend { font-size: 13px; color: #45464c; margin-bottom: 6px; padding: 0; }
.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 36px; padding: 0 12px; border: 1px solid var(--line-2); border-radius: 100px; font-size: 14px; cursor: pointer; }
.chip:has(input:checked) { background: var(--ink); color: #fff; border-color: var(--ink); }
.chip input { accent-color: var(--blue); }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.results { position: sticky; top: 16px; }
.results-inner { background: var(--ink); color: #f3f3f5; border-radius: 22px; padding: clamp(20px, 2.5vw, 28px); }
.results .step { background: #fff; color: var(--ink); }
.summary { color: #c4c5ca; margin-bottom: 16px; }
.settle { background: #1d1e22; border: 1px solid #2c2d32; border-radius: 14px; padding: 14px; display: grid; gap: 10px; animation: pop .25s var(--ease); }
.settle-main { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.who { color: #c4c5ca; }
.who b { color: #fff; font-weight: 600; }
.amt { font-size: 22px; letter-spacing: -.02em; white-space: nowrap; }
.settle-actions { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
.settle .btn { background: #fff; color: var(--ink); border-color: #fff; }
.settle .btn:hover { background: var(--blue-soft); }
.check { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: #c4c5ca; min-height: 38px; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: #7dd3a6; }
.settle.is-paid { border-color: #2f5e46; }
.settle.is-paid .amt { text-decoration: line-through; color: #8ea89a; }
.balances-wrap { margin-top: 16px; border-top: 1px solid #2c2d32; padding-top: 12px; }
.balances-wrap summary { cursor: pointer; color: #c4c5ca; font-size: 14px; min-height: 36px; display: flex; align-items: center; }
.balances { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 8px; }
.balances th, .balances td { text-align: left; padding: 8px 6px; border-bottom: 1px solid #2c2d32; }
.balances thead th { color: #9fa1aa; font-weight: 400; font-size: 12px; }
.balances td.pos { color: #8fe0b4; }
.balances td.neg { color: #ffb4a6; }
.share { display: grid; gap: 10px; margin-top: 20px; }
.share .fine { color: #a6a7af; }
.share .btn.ghost { color: #fff; border-color: #ffffff38; }
.share .btn.ghost:hover { background: #ffffff12; }
.results :focus-visible { outline-color: #a7b1ff; }
.toast { min-height: 1.4em; color: #8fe0b4; font-size: 14px; }

.faq { padding: 8px var(--pad) 64px; }
.faq h2 { font-size: 28px; letter-spacing: -.03em; margin-bottom: 18px; }
.faq-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.faq h3 { font-size: 18px; margin-bottom: 6px; }
.faq p { color: var(--grey); font-size: 15px; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 24px var(--pad) 32px; border-top: 1px solid var(--line); color: var(--grey); font-size: 14px; }
.foot nav { display: flex; gap: 18px; }
.foot a { text-underline-offset: 3px; }

dialog { border: 0; border-radius: 20px; padding: 0; width: min(440px, calc(100vw - 32px)); box-shadow: 0 30px 80px #0005; }
dialog::backdrop { background: #10111399; }
dialog[open] { animation: pop .24s var(--ease); }
.dialog-inner { padding: 24px; display: grid; gap: 14px; }
.dialog-inner h2 { font-size: 22px; letter-spacing: -.02em; }
.dialog-inner > p { color: var(--grey); font-size: 14px; }
.pay-block { display: grid; gap: 10px; justify-items: start; padding: 14px; border: 1px solid var(--line); border-radius: 14px; }
.pay-block h3 { font-size: 15px; font-weight: 600; }
.qr { width: 180px; height: 180px; justify-self: center; }
.qr svg { width: 100%; height: 100%; }
.addr { display: block; width: 100%; font: 13px ui-monospace, Menlo, Consolas, monospace; padding: 8px 10px; border-radius: 8px; background: var(--mist); overflow-wrap: anywhere; }
.warn.fine { color: var(--bad); }
.dialog-actions { display: flex; justify-content: flex-end; }

@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .results { position: static; }
  .faq-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .row2 { grid-template-columns: 1fr; }
  .exp-row { grid-template-columns: 1fr 1fr auto; }
  .exp-row .grow { grid-row: 1; grid-column: 1 / 3; }
  .exp-row .icon-btn { grid-row: 1; grid-column: 3; align-self: end; }
  .exp-row .amount { grid-row: 2; grid-column: 1; }
  .exp-row .field:not(.grow):not(.amount) { grid-row: 2; grid-column: 2 / 4; }
  .pay-details { margin-left: 0; }
  .inline-add { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }