/* Cost Optimizer page. Builds on styles.css (tokens, topbar, cards, buttons). */
:root {
  --green-light: #8fd19e;   /* savings from buying used */
  --green-dark: #1f8a4c;    /* money from selling what you don't need */
  --green-ink: #17693a;
  --danger: #b3261e;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --green-light: #5fae74; --green-dark: #2fbf6a; --green-ink: #6fdc98; --danger: #ff8a80; }
}
:root[data-theme="dark"] { --green-light: #5fae74; --green-dark: #2fbf6a; --green-ink: #6fdc98; --danger: #ff8a80; }

/* 3.1 picker: stays on screen */
.picker { position: sticky; top: 0; z-index: 20; background: var(--card); border-bottom: 1px solid var(--line);
          box-shadow: 0 2px 8px var(--shadow); }
.picker-in { max-width: 1240px; margin: 0 auto; padding: 10px 16px; display: flex; gap: 12px; flex-wrap: wrap; align-items: end; }
.field { display: grid; gap: 3px; font-size: 12px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--accent); }
.field.grow { flex: 1 1 220px; }
.field input, .field select { font: inherit; font-size: 16px; text-transform: none; letter-spacing: 0; font-weight: 500;
  color: var(--ink); background: var(--card); border: 1.5px solid var(--line); border-radius: 10px; padding: 9px 11px; min-width: 0; }
.field input { width: 6.5em; }
.field select:focus, .field input:focus { outline: none; border-color: var(--accent); }
.ages { display: flex; flex-wrap: wrap; gap: 6px; align-items: stretch; text-transform: none; letter-spacing: 0; }
.age-buttons { display: contents; }
.age { font: inherit; font-size: 14px; font-weight: 600; color: var(--ink); background: var(--card); cursor: pointer;
       text-transform: none; letter-spacing: 0;
       border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 12px; white-space: nowrap; }
.age:hover { border-color: var(--accent); }
.age[aria-pressed="true"] { background: var(--brand); color: var(--on-brand); border: 2px solid var(--heading); box-shadow: 0 0 0 2px var(--brand-soft); }
.age.step { background: var(--panel); font-size: 18px; line-height: 1; padding: 6px 12px; }
.age.step:disabled { opacity: .45; cursor: default; border-color: var(--line); }
.span-note { display: block; font-size: 14px; color: var(--muted); margin-top: 2px; }
.age:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.field #bucket-more { font-size: 14px; font-weight: 600; padding: 8px 10px; }
.field #bucket-more.picked { border: 2px solid var(--heading); box-shadow: 0 0 0 2px var(--brand-soft); background: var(--brand-soft); color: var(--brand); }

.opt { max-width: 1180px; margin: 20px auto; padding: 0 16px; display: grid; gap: 18px; }
.opt .card { padding: 22px; }
@media (max-width: 480px) { .opt .card { padding: 16px; } }
.intro h1 { margin-bottom: 6px; }
.intro .lead { margin: 0; }

/* segmented buttons */
.seg { display: inline-flex; border: 1.5px solid var(--line); border-radius: 999px; overflow: hidden; flex: none; }
.seg button { font: inherit; font-size: 14px; border: 0; background: transparent; color: var(--ink); padding: 6px 13px; cursor: pointer; }
.seg button + button { border-left: 1.5px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--brand); color: var(--on-brand); }
.seg button:disabled { color: var(--muted); opacity: .45; cursor: default; }
.seg.small button { font-size: 13px; padding: 4px 10px; }
.seg button:focus-visible, .chip:focus-visible, .linkish:focus-visible, .icon:focus-visible, .btn-have:focus-visible, .btn-sold:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px; }

/* 3.2 summary */
.sum-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.sum-head h2 { margin: 0; }
.tiles { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
@media (max-width: 900px) { .tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .tiles { grid-template-columns: minmax(0, 1fr); } }
.tile { background: var(--panel); border-radius: 12px; padding: 14px; display: grid; gap: 4px; align-content: start; min-width: 0; }
.tile .lbl { font-size: 12px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); }
.tile .val { font-family: var(--serif); font-size: 26px; font-weight: 700; color: var(--heading); font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.tile .val.dark, .g-dark { color: var(--green-dark); }
.g-light { color: var(--green-ink); }
.tile .note { font-size: 13px; color: var(--muted); }
.tile.total { background: color-mix(in srgb, var(--green-dark) 12%, var(--card)); }
.tile.total .val { color: var(--green-dark); }
.bar { display: flex; height: 10px; border-radius: 999px; overflow: hidden; background: var(--line); margin: 4px 0; }
.bar .light { background: var(--green-light); }
.bar .dark { background: var(--green-dark); }

/* 3.3 lists */
.lists { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
@media (max-width: 980px) { .lists { grid-template-columns: minmax(0, 1fr); } }
.list-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; }
.list-head h2 { margin: 0; }
.count { font-family: var(--sans); font-size: 13px; font-weight: 600; color: var(--muted); background: var(--panel);
         border-radius: 999px; padding: 1px 8px; margin-left: 4px; vertical-align: middle; }
.group-brand label { font-size: 13px; color: var(--muted); display: flex; gap: 6px; align-items: center; }
.group-brand select { font: inherit; font-size: 14px; color: var(--ink); background: var(--card); border: 1.5px solid var(--line); border-radius: 8px; padding: 4px 6px; }
.list-totals { font-size: 14px; color: var(--muted); margin: 8px 0 12px; }
.list-totals b { color: var(--ink); font-variant-numeric: tabular-nums; }
.empty { color: var(--muted); }
.cat { border-top: 1px solid var(--line); }
.cat summary { display: flex; align-items: center; gap: 6px; padding: 10px 2px; cursor: pointer; font-weight: 700; color: var(--heading); list-style: none; }
.cat summary::-webkit-details-marker { display: none; }
.cat summary::before { content: "▸"; color: var(--accent); width: 1em; transition: transform .15s; }
.cat[open] summary::before { transform: rotate(90deg); }
.cat summary b { margin-left: auto; font-variant-numeric: tabular-nums; }
.cat.have { background: color-mix(in srgb, var(--accent) 7%, var(--card)); border-radius: 12px; border-top: 0; padding: 0 10px 6px; margin-bottom: 8px; }
.hint { font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.row { padding: 10px 0; border-top: 1px dashed var(--line); }
.row-top { display: flex; gap: 10px; align-items: baseline; }
.row-name { flex: 1; min-width: 0; font-weight: 600; }
.row-top { align-items: center; }
/* item icons: a soft tile in the category's color, the icon itself drawn in that color through a CSS mask */
.thumb { --c: var(--accent); flex: none; width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
         background: linear-gradient(145deg, color-mix(in srgb, var(--c) 24%, transparent), color-mix(in srgb, var(--c) 10%, transparent));
         box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--c) 30%, transparent); }
.thumb i { width: 58%; height: 58%; background: var(--icon-ink); -webkit-mask: var(--icon) center / contain no-repeat; mask: var(--icon) center / contain no-repeat; }
.thumb { --icon-ink: color-mix(in srgb, var(--c) 72%, #000); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .thumb { --icon-ink: var(--c); } }
:root[data-theme="dark"] .thumb { --icon-ink: var(--c); }
.cat-pregnancy-postpartum { --c: #f28fb5; }
.cat-car-seats-strollers { --c: #7fb6f5; }
.cat-sleep-nursery { --c: #b6a1f0; }
.cat-feeding { --c: #f6b56b; }
.cat-diapering-potty { --c: #6fd3d8; }
.cat-bath-health-safety { --c: #8fd39b; }
.cat-play-learning { --c: #f3d660; }
.cat-outdoor-sports { --c: #66c7a8; }
.cat-clothing { --c: #f39a86; }
.cat-school { --c: #9fb4ff; }
.srow-name { display: flex; gap: 10px; align-items: center; }
.srow-name .thumb { width: 42px; height: 42px; border-radius: 12px; }
.srow-text { min-width: 0; }
.credits { font-size: 12px; color: var(--muted); }
.credits summary { cursor: pointer; }
.credits a { color: inherit; }
.row-sub { display: block; font-weight: 400; font-size: 13px; color: var(--muted); }
.row-price { font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tag { font-size: 11px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; color: var(--accent);
       border: 1px solid var(--line); border-radius: 999px; padding: 0 7px; }
.row-ctl { display: flex; flex-wrap: wrap; gap: 6px 8px; align-items: center; margin-top: 7px; }
.chip { font: inherit; font-size: 13px; color: var(--ink); background: var(--panel); border: 1.5px solid var(--line);
        border-radius: 999px; padding: 4px 10px; cursor: pointer; max-width: 12em; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.btn-have { font: inherit; font-size: 13px; font-weight: 700; color: var(--on-brand); background: var(--brand); border: 0;
            border-radius: 999px; padding: 5px 12px; cursor: pointer; }
.btn-have:hover { background: var(--brand-hover); }
.linkish { font: inherit; font-size: 13px; background: none; border: 0; color: var(--accent); text-decoration: underline; cursor: pointer; padding: 4px 2px; }
.icon { font: inherit; font-size: 18px; line-height: 1; background: none; border: 0; color: var(--muted); cursor: pointer; padding: 2px 6px; border-radius: 6px; align-self: flex-start; }
.row-ctl { padding-left: 62px; }
@media (max-width: 480px) { .row-ctl { padding-left: 0; } }
.icon:hover { color: var(--danger); background: var(--panel); }
.restore { text-align: center; margin: -6px 0 0; }

/* stash and sold */
.stash-sub { margin-top: 14px; }
.stash-sub h3 { font-size: 16px; margin: 0 0 4px; color: var(--heading); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.sub-total { margin-left: auto; font-size: 14px; font-weight: 600; color: var(--muted); }
.stash-sub.sell { background: color-mix(in srgb, var(--green-dark) 9%, var(--card)); border-radius: 12px; padding: 10px 12px; }
.stash-sub.sell .sub-total { color: var(--green-dark); }
.srow { display: grid; grid-template-columns: minmax(0, 1fr) auto auto auto; gap: 8px 14px; align-items: center; padding: 9px 0; border-top: 1px dashed var(--line); }
.srow-name { font-weight: 600; min-width: 0; }
.srow-val { font-weight: 700; font-variant-numeric: tabular-nums; text-align: right; }
.srow-val small { display: block; font-size: 11px; font-weight: 500; color: var(--muted); }
.srow-val.green { color: var(--green-dark); }
.paid { font-size: 12px; color: var(--muted); display: grid; gap: 2px; }
.money-in { display: inline-flex; align-items: center; gap: 2px; color: var(--ink); font-size: 15px; }
.money-in input { font: inherit; width: 5.5em; padding: 4px 6px; border: 1.5px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); }
.srow-btns { display: flex; gap: 6px; align-items: center; }
.btn-sold { font: inherit; font-size: 13px; font-weight: 700; color: #fff; background: var(--green-dark); border: 0; border-radius: 999px; padding: 5px 12px; cursor: pointer; }
@media (max-width: 560px) {
  .srow { grid-template-columns: minmax(0, 1fr) auto; }
  .paid { grid-column: 1; }
}

.regained { display: grid; gap: 2px; margin: 6px 0 12px; }
.regained .lbl { font-size: 12px; font-weight: 700; letter-spacing: .6px; text-transform: uppercase; color: var(--muted); }
.regained .val { font-family: var(--serif); font-size: 44px; font-weight: 700; line-height: 1.1; color: var(--green-dark); font-variant-numeric: tabular-nums; }

/* 3.5 you saved */
.saved { text-align: center; padding: 26px 16px; border-radius: var(--radius); background: var(--green-dark); color: #fff; display: grid; gap: 4px; }
.saved:empty { display: none; }
.saved .lbl { font-size: 14px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; opacity: .9; }
.saved .val { font-family: var(--serif); font-size: 52px; font-weight: 700; line-height: 1.05; font-variant-numeric: tabular-nums; }
.saved .note { font-size: 14px; opacity: .9; }

/* popover: brand menu and confirmations */
.popover { position: absolute; z-index: 50; background: var(--card); color: var(--ink); border: 1px solid var(--line);
           border-radius: 12px; box-shadow: 0 8px 28px var(--shadow), 0 2px 6px var(--shadow); padding: 8px; max-width: 280px; }
.popover p { margin: 4px 6px 8px; font-size: 14px; }
.menu { display: grid; }
.menu button { font: inherit; font-size: 14px; text-align: left; background: none; border: 0; color: var(--ink); padding: 7px 10px; border-radius: 8px; cursor: pointer; }
.menu button:hover, .menu button:focus-visible { background: var(--panel); outline: none; }
.menu button[aria-checked="true"]::before { content: "✓ "; color: var(--accent); }
.pop-btns { display: flex; gap: 8px; justify-content: flex-end; }
.pop-btns button { font: inherit; font-size: 13px; border-radius: 999px; padding: 5px 12px; cursor: pointer; border: 1.5px solid var(--line); background: var(--card); color: var(--ink); }
.pop-btns .danger { background: var(--danger); border-color: var(--danger); color: #fff; }