/* Page chrome */
:root {
  --bg: #e9e5de; --surface: #fffdf9; --ink: #1f1d1a; --muted: #77716a; --line: #d9d2c6;
  --accent: #c2410c; --ok: #15803d; --due: #b45309; --danger: #b91c1c;
  /* The receipt itself stays paper-coloured in both themes. */
  --paper: #fdfcf8; --paper-ink: #232120; --paper-muted: #8a847b; --paper-rule: #b9b3a8;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #161513; --surface: #201e1b; --ink: #ede9e3; --muted: #9b948b; --line: #34312c;
          --accent: #fb923c; --ok: #4ade80; --due: #fbbf24; --danger: #f87171; }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
       font: 15px/1.5 var(--mono); }
a { color: var(--accent); }
h1 { margin: 0 0 .25rem; font-size: 1.4rem; letter-spacing: .04em; }
.muted { color: var(--muted); }
.due { color: var(--due); }
.mono, code { font-family: var(--mono); }

.topbar { display: flex; justify-content: space-between; align-items: center;
          padding: .75rem 1rem; border-bottom: 1px solid var(--line); background: var(--surface); }
.brand { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: .12em; text-transform: uppercase; }
.wrap { max-width: 1100px; margin: 0 auto; padding: 1.5rem 1rem 4rem; }

.flash { max-width: 560px; margin: 0 auto 1rem; padding: .6rem .9rem; border-radius: 6px;
         background: var(--surface); border: 1px dashed var(--line); text-align: center; }
.flash-alert { border-color: var(--danger); color: var(--danger); }

.btn { appearance: none; border: 1px solid var(--accent); background: var(--accent); color: #fff;
       padding: .45rem .9rem; border-radius: 6px; font: inherit; cursor: pointer; text-decoration: none; }
.btn-ghost { background: transparent; color: var(--accent); }
.linklike { appearance: none; border: 0; background: none; color: var(--muted); font: inherit;
            text-decoration: underline; cursor: pointer; padding: 0; }
.linklike.danger { color: var(--danger); }

/* Receipt list */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; margin-top: 1rem; }
.card { background: var(--paper); color: var(--paper-ink); padding: 1rem 1.1rem;
        box-shadow: 0 2px 10px rgb(0 0 0 / .12); }
.card-link { display: block; text-decoration: none; transition: transform .15s; }
.card-link:hover { transform: translateY(-2px) rotate(-.4deg); }
.card-title { font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
.card .muted { color: var(--paper-muted); }
.card .due { color: var(--paper-ink); font-weight: 700; }
.card-stats { display: flex; justify-content: space-between; margin-top: .75rem;
              padding-top: .5rem; border-top: 1px dashed var(--paper-rule); }

/* Import form */
.stack { display: flex; flex-direction: column; gap: .5rem; max-width: 640px; }
.stack .btn { align-self: start; margin-top: .5rem; }
.stack input, .stack textarea { font: inherit; padding: .45rem .6rem; border: 1px solid var(--line);
  border-radius: 6px; background: var(--surface); color: var(--ink); }
.stack textarea { font-size: .85rem; }

/* The receipt */
.receipt-page { display: grid; grid-template-columns: minmax(0, 520px) 320px; gap: 1rem 2.5rem;
                justify-content: center; align-items: start; }
.receipt-nav { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; font-size: .9rem; }
.receipt-col { min-width: 0; }
.receipt-nav form { margin: 0; }

.receipt {
  --tooth: 10px;
  position: relative; background: var(--paper); color: var(--paper-ink); color-scheme: light;
  padding: 2rem 1.75rem 2.25rem; font-size: 14px; line-height: 1.45;
  filter: drop-shadow(0 4px 14px rgb(0 0 0 / .18));
  /* torn / zig-zag top and bottom edges */
  -webkit-mask:
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 90deg, #0000 91deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at top, #0000, #000 1deg 90deg, #0000 91deg) top / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    linear-gradient(#000 0 0) center / 100% calc(100% - var(--tooth) * 2) no-repeat;
          mask:
    conic-gradient(from -45deg at bottom, #0000, #000 1deg 90deg, #0000 91deg) bottom / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    conic-gradient(from 135deg at top, #0000, #000 1deg 90deg, #0000 91deg) top / calc(var(--tooth) * 2) var(--tooth) repeat-x,
    linear-gradient(#000 0 0) center / 100% calc(100% - var(--tooth) * 2) no-repeat;
}
.r-head { text-align: center; margin-bottom: 1rem; }
.r-title { font-size: 1.3rem; font-weight: 700; letter-spacing: .35em; }
.r-meta { margin-bottom: .75rem; }
.r-meta span { display: inline-block; width: 4.5rem; }
.r-muted { color: var(--paper-muted); }
.r-rule { border-top: 1px dashed var(--paper-rule); margin: .5rem 0; }

.r-table { width: 100%; border-collapse: collapse; }
.r-table th { font-weight: 400; text-align: left; padding: .15rem .25rem;
              border-top: 1px dashed var(--paper-rule); border-bottom: 1px dashed var(--paper-rule); }
.r-table td { padding: .12rem .25rem; vertical-align: top; }
.r-table .num { text-align: right; white-space: nowrap; width: 5.5rem; }
.r-table .check { width: 1.6rem; padding-left: 0; padding-right: 0; }
.r-items label { cursor: pointer; }
.r-items input[type=checkbox] { width: .95rem; height: .95rem; margin: .2rem 0 0; accent-color: var(--paper-ink); cursor: pointer; }
.r-items input[type=checkbox]:disabled { visibility: hidden; }
.r-items tr.is-selected td { background: #f3e3c4; }
.r-items tr.is-paid { color: var(--paper-muted); }
.r-items tr.is-paid label { cursor: default; }
.r-name { display: flex; justify-content: space-between; gap: .75rem; }
.r-payer { font-size: .8rem; color: var(--paper-ink); opacity: .75; white-space: nowrap; }
.r-payer::before { content: "\2713  "; }

.r-totals { margin: 0; }
.r-totals div { display: flex; justify-content: space-between; gap: 1rem; padding: .05rem .25rem; }
.r-totals dt, .r-totals dd { margin: 0; }
.r-totals dd { white-space: pre; }
.r-strong { font-weight: 700; }

/* Sidebar next to the receipt */
.receipt-side { display: flex; flex-direction: column; gap: 1.25rem; position: sticky; top: 1rem; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: 8px; padding: 1rem 1.1rem; font-size: 13px; }
.side-card h2 { margin: 0 0 .6rem; font-size: .75rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.side-list { margin: 0; }
.side-list div { display: flex; justify-content: space-between; gap: 1rem; padding: .15rem 0; }
.side-list dt, .side-list dd { margin: 0; }
.side-total { margin-top: .4rem; padding-top: .5rem !important; border-top: 1px dashed var(--line); font-weight: 700; }
.side-table { width: 100%; border-collapse: collapse; }
.side-table th { font-weight: 400; color: var(--muted); text-align: left; padding: .1rem 0; border-bottom: 1px dashed var(--line); }
.side-table td { padding: .1rem 0; vertical-align: top; }
.side-table .num { text-align: right; white-space: nowrap; padding-left: .75rem; }
.side-cat td { font-weight: 700; padding-top: .6rem; text-transform: uppercase; letter-spacing: .06em; }
.side-subtotal td { border-top: 1px dashed var(--line); color: var(--muted); }
.side-paid td { color: var(--muted); text-decoration: line-through; text-decoration-color: var(--muted); }
.side-table tr.has-progress td { padding-bottom: 0; }
.side-progress td { padding: .1rem 0 .35rem; }
.progress-row { display: flex; align-items: center; gap: .6rem; }
.progress-track { flex: 1; height: 4px; border-radius: 999px; background: var(--line); overflow: hidden; }
.progress-fill { height: 100%; background: var(--ok); border-radius: 999px; }
.paid-amount { color: var(--ok); font-size: .72rem; white-space: nowrap; }

.photo-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; margin-bottom: .75rem; }
.photo { position: relative; margin: 0; aspect-ratio: 3 / 4; border-radius: 4px; overflow: hidden;
         background: var(--bg); border: 1px solid var(--line); }
.photo a { display: block; width: 100%; height: 100%; }
.photo img { width: 100%; height: 100%; object-fit: cover; display: block; }
.photo-file { display: grid; place-items: center; height: 100%; color: var(--muted); font-weight: 700; }
.photo form { position: absolute; top: 3px; right: 3px; margin: 0; }
.photo-remove { appearance: none; border: 0; width: 1.4rem; height: 1.4rem; border-radius: 50%; cursor: pointer;
                background: rgb(0 0 0 / .6); color: #fff; font: inherit; line-height: 1; opacity: 0; transition: opacity .15s; }
.photo:hover .photo-remove, .photo-remove:focus-visible { opacity: 1; }
@media (hover: none) { .photo-remove { opacity: 1; } }
.photo-empty { margin: 0 0 .75rem; }
.photo-upload { margin: 0; }
.photo-upload .btn { display: inline-block; font-size: 13px; }

/* Sticky pay bar + payer dialog */
#pay-form { position: sticky; bottom: 1rem; z-index: 10; margin-top: 1.25rem; }
.paybar { display: flex; flex-wrap: wrap; gap: .75rem 1.25rem; justify-content: space-between; align-items: center;
          background: var(--paper-ink); color: var(--paper); border-radius: 8px;
          padding: .7rem 1rem; box-shadow: 0 8px 30px rgb(0 0 0 / .25); }
.paybar[hidden] { display: none; }
.paybar-summary { display: flex; align-items: center; gap: .9rem; }
.paybar .linklike { color: #bdb7ad; }

.pay-dialog { width: min(400px, calc(100vw - 2rem)); border: 0; color-scheme: light; border-radius: 4px;
              background: var(--paper); color: var(--paper-ink); padding: 1.4rem;
              display: none; flex-direction: column; gap: .75rem; }
.pay-dialog[open] { display: flex; }
.pay-dialog::backdrop { background: rgb(0 0 0 / .45); }
.pay-dialog h3 { order: -2; margin: 0; text-align: center; letter-spacing: .12em; text-transform: uppercase; }
.pay-dialog p { order: -2; margin: 0 0 .5rem; text-align: center; padding-bottom: .5rem; border-bottom: 1px dashed var(--paper-rule); }
.pay-people { order: -1; display: flex; flex-wrap: wrap; gap: .5rem; justify-content: center; }
.pay-person { appearance: none; font: inherit; padding: .4rem .9rem; border-radius: 4px; cursor: pointer;
              border: 1px solid var(--paper-ink); background: transparent; color: var(--paper-ink); }
.pay-person:hover { background: var(--paper-ink); color: var(--paper); }
.pay-new { display: flex; gap: .5rem; }
.pay-new input { flex: 1; min-width: 0; font: inherit; padding: .4rem .6rem; border: 1px dashed var(--paper-rule);
                 border-radius: 4px; background: transparent; color: var(--paper-ink); }
.pay-dialog .btn { background: var(--paper-ink); border-color: var(--paper-ink); color: var(--paper); border-radius: 4px; }
.pay-cancel { align-self: center; color: var(--paper-muted); }

@media (max-width: 900px) {
  .receipt-page { grid-template-columns: minmax(0, 520px); }
  .receipt-side { position: static; }
}
@media (max-width: 520px) {
  .receipt { padding: 1.75rem 1rem 2rem; font-size: 13px; }
  .r-table .num { width: 4.5rem; }
}