:root {
  --bg: #f6f3ee; --card: #fff; --text: #1f1d1a; --muted: #6b665e; --line: #e3ddd3;
  --primary: #7a2e1f; --primary-text: #fff; --ok: #2f6b3a; --warn: #a86400; --danger: #b3261e;
  --ok-bg: #e6f2e7; --warn-bg: #fdf0dc; --danger-bg: #fbe6e4;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1816; --card: #252220; --text: #eee9e2; --muted: #a39d93; --line: #3a3531;
    --primary: #d9785f; --primary-text: #1a1816; --ok: #7cc28a; --warn: #f0b05a; --danger: #f08178;
    --ok-bg: #1f3323; --warn-bg: #3a2c15; --danger-bg: #3d1f1c;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--primary); }
main { max-width: 1000px; margin: 0 auto; padding: 1rem 1rem 6rem; }
h1 { font-size: 1.5rem; margin: .5rem 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
h3 { font-size: 1rem; margin: 0 0 .5rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

/* Header */
.top { background: var(--primary); color: var(--primary-text); display: flex; flex-wrap: wrap;
  align-items: center; padding: .6rem 1rem; gap: .5rem; }
.top a, .top .link { color: var(--primary-text); text-decoration: none; }
.brand { font-weight: 700; font-size: 1.1rem; margin-right: auto; }
.top nav { display: flex; flex-wrap: wrap; gap: .25rem 1rem; align-items: center; }
.top nav .sep { width: 1px; height: 1.2em; background: currentColor; opacity: .3; }
.menu-btn { display: none; font-size: 1.6rem; line-height: 1; cursor: pointer; color: var(--primary-text); }
@media (max-width: 760px) {
  .menu-btn { display: block; }
  .top nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; padding: .5rem 0; }
  .top nav .sep { width: 100%; height: 1px; }
  #menu-toggle:checked ~ nav { display: flex; }
}
.inline { display: inline; margin: 0; }
.link { background: none; border: 0; padding: 0; font: inherit; color: var(--primary); cursor: pointer; text-decoration: underline; }

/* Cards & layout */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1rem; margin-bottom: 1rem; display: block; }
.narrow { max-width: 420px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.grid .card { margin: 0; }
.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-bottom: 1.25rem; }
.stat { text-decoration: none; color: var(--text); display: flex; flex-direction: column; gap: .2rem; }
.stat-label { color: var(--muted); font-size: .9rem; }
.stat-value { font-size: 2rem; font-weight: 700; }
.stat.warn { border-color: var(--warn); }

/* Forms */
label { display: block; margin-bottom: .75rem; font-size: .9rem; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], select {
  display: block; width: 100%; margin-top: .25rem; padding: .55rem .65rem; font: inherit; color: var(--text);
  background: var(--card); border: 1px solid var(--line); border-radius: 8px; }
input:focus, select:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.small-input { max-width: 7rem; margin: 0 !important; }
.filters { display: flex; flex-wrap: wrap; gap: 0 1rem; align-items: flex-end; }
.filters label { flex: 1 1 160px; }
.filters .wide { flex-basis: 100%; }
.filter-buttons { display: flex; gap: .5rem; margin-bottom: .75rem; }
.error { color: var(--danger); font-size: .85rem; margin: -.5rem 0 .75rem; }

/* Buttons */
.btn { display: inline-block; padding: .55rem 1rem; border-radius: 8px; border: 1px solid var(--line);
  background: var(--card); color: var(--text); font: inherit; text-decoration: none; cursor: pointer; text-align: center; }
.btn-primary { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-danger-outline { color: var(--danger); border-color: var(--danger); }
.btn-big { padding: 1rem 1.5rem; font-size: 1.1rem; flex: 1 1 200px; }
.btn-block { width: 100%; }
.btn-small { padding: .3rem .7rem; font-size: .9rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
summary { list-style: none; cursor: pointer; }
summary::-webkit-details-marker { display: none; }

/* Messages & badges */
.msg { padding: .75rem 1rem; border-radius: 8px; margin-bottom: 1rem; background: var(--card); border: 1px solid var(--line); }
.msg-success { background: var(--ok-bg); border-color: var(--ok); }
.msg-error { background: var(--danger-bg); border-color: var(--danger); }
.msg-warning { background: var(--warn-bg); border-color: var(--warn); }
.badge { display: inline-block; padding: .1rem .5rem; border-radius: 99px; font-size: .8rem; border: 1px solid var(--line); }
.badge-verified { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
.badge-pending { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }
.badge-cancelled { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.badge-warn { background: var(--warn-bg); color: var(--warn); border-color: var(--warn); }

/* Tables */
.card:has(> table.list) { overflow-x: auto; }
table.list { width: 100%; border-collapse: collapse; }
table.list th, table.list td { padding: .5rem .4rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: middle; }
table.list thead th { font-size: .8rem; color: var(--muted); font-weight: 600; }
table.list tfoot th { border-bottom: 0; }
.num { text-align: right !important; white-space: nowrap; }
tr.cancelled td { color: var(--muted); text-decoration: line-through; }
tr.low td { background: var(--warn-bg); }
.neg { color: var(--danger); } .pos { color: var(--ok); }

/* Login */
.login { max-width: 380px; margin: 3rem auto; text-align: center; }
.login .card { text-align: left; }

/* New expense */
.products { display: grid; gap: .5rem; }
.product { display: flex; justify-content: space-between; align-items: center; gap: .75rem;
  padding: .4rem 0; border-bottom: 1px solid var(--line); }
.product:last-child { border-bottom: 0; }
.product.selected .product-name { font-weight: 700; }
.product-name { display: flex; flex-direction: column; }
.price { color: var(--muted); font-size: .9rem; }
.qty { display: flex; align-items: center; gap: .3rem; }
.qty input { width: 3.5rem; text-align: center; margin: 0; padding: .45rem .2rem; -moz-appearance: textfield; }
.qty input::-webkit-outer-spin-button, .qty input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.qty-btn { width: 2.6rem; height: 2.6rem; border-radius: 50%; border: 1px solid var(--line); background: var(--bg);
  color: var(--text); font-size: 1.3rem; cursor: pointer; }
.sticky-total { position: fixed; left: 0; right: 0; bottom: 0; background: var(--card); border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: .75rem max(1rem, calc((100% - 1000px) / 2 + 1rem)); padding-bottom: calc(.75rem + env(safe-area-inset-bottom, 0px));
  font-size: 1.2rem; }

/* Expense ticket */
.ticket { text-align: center; padding: 1.5rem 1rem; }
.ticket-label { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-size: .85rem; }
.ticket-number { font-size: 4.5rem; font-weight: 800; line-height: 1.1; color: var(--primary); }
.ticket-total { font-size: 1.6rem; margin-bottom: .5rem; }
.ticket.cancelled .ticket-number { text-decoration: line-through; color: var(--muted); }
.howto { text-align: left; max-width: 420px; margin: 1rem auto .5rem; }

/* Reservations */
.day-nav { display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.day-nav form { margin: 0; } .day-nav input { margin: 0; }
.day-title { margin: 1rem 0; text-transform: capitalize; }
.tables { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.table-card { margin: 0; }
.table-slots { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem; }
.slot { border-radius: 8px; padding: .6rem .7rem; display: flex; flex-direction: column; align-items: flex-start; gap: .3rem; min-width: 0; border: 1px solid var(--line); }
.slot.free { background: var(--ok-bg); border-color: var(--ok); }
.slot.full { background: var(--bg); }
.slot.shared { background: var(--ok-bg); border-color: var(--ok); border-style: dashed; }
.group { display: flex; flex-direction: column; align-items: flex-start; gap: .15rem; padding-bottom: .3rem; border-bottom: 1px dashed var(--line); width: 100%; }
.free-seats { color: var(--ok); font-weight: 600; font-size: .9rem; }
.badge-shared { background: var(--ok-bg); color: var(--ok); border-color: var(--ok); }
label.check { display: flex; gap: .4rem; align-items: center; color: var(--text); }
.slot.mine { background: var(--warn-bg); border-color: var(--warn); }
.slot-meal { font-weight: 600; }
.reserve-form { margin-top: .5rem; }
.upcoming { display: flex; gap: .4rem; overflow-x: auto; padding-bottom: .3rem; }
.up-day { flex: 0 0 auto; min-width: 3.6rem; display: flex; flex-direction: column; align-items: center;
  padding: .4rem; border: 1px solid var(--line); border-radius: 8px; text-decoration: none; color: var(--text); }
.up-day.active { border-color: var(--primary); outline: 1px solid var(--primary); }
.up-day .full { color: var(--danger); font-weight: 700; }

/* Tabs & pagination */
.tabs { display: flex; gap: .25rem; flex-wrap: wrap; margin-bottom: 1rem; }
.tabs a { padding: .4rem .8rem; border-radius: 99px; text-decoration: none; border: 1px solid var(--line); background: var(--card); color: var(--text); }
.tabs a.active { background: var(--primary); color: var(--primary-text); border-color: var(--primary); }
.pagination { display: flex; gap: 1rem; align-items: center; justify-content: center; }