/* ── Tokens ─────────────────────────────────────────────── */
:root {
  --bg:           #f1f5f9;
  --card:         #ffffff;
  --accent:       #4f46e5;
  --accent-h:     #4338ca;
  --danger:       #ef4444;
  --success:      #16a34a;
  --text:         #0f172a;
  --muted:        #64748b;
  --border:       #e2e8f0;
  --nav:          #0f172a;
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Base ───────────────────────────────────────────────── */
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.6;
  -webkit-text-size-adjust: 100%;
}

/* ── Header ─────────────────────────────────────────────── */
header { background: var(--nav); }
.hdr {
  padding: .75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: #818cf8;
}
nav { display: flex; gap: .75rem; }
nav a {
  color: #94a3b8;
  text-decoration: none;
  font-size: .85rem;
  font-weight: 500;
  padding: .3rem .6rem;
  border-radius: 6px;
}
nav a:hover { color: #e2e8f0; }
nav a.on { color: #a5b4fc; background: rgba(129,140,248,.08); }

/* ── Layout ─────────────────────────────────────────────── */
main {
  padding: .875rem;
  display: flex;
  flex-direction: column;
  gap: .875rem;
}

/* ── Cards ──────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.card-hdr {
  padding: .85rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
}
.card-hdr h2 { font-size: .9rem; font-weight: 600; }
.hint { font-size: .75rem; color: var(--muted); white-space: nowrap; }
.card-body { padding: 1rem; }

/* ── Forms ──────────────────────────────────────────────── */
form.row {
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.field { display: flex; flex-direction: column; gap: .25rem; }
.field label { font-size: .75rem; font-weight: 500; color: var(--muted); }

input[type=text],
input[type=date],
select,
input#search {
  width: 100%;
  padding: .6rem .75rem;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  font-size: .875rem;
  color: var(--text);
  background: #fff;
  -webkit-appearance: none;
  appearance: none;
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .65rem center;
  padding-right: 2.25rem;
}
input:focus, select:focus { outline: none; border-color: var(--accent); }

.btn {
  width: 100%;
  padding: .65rem 1rem;
  border: none;
  border-radius: 6px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  line-height: 1.4;
  text-align: center;
  transition: background .15s;
}
.btn-add { background: var(--accent); color: #fff; }
.btn-add:hover { background: var(--accent-h); }
.btn-del {
  background: #fef2f2;
  color: var(--danger);
  border: 1px solid #fecaca;
  padding: .35rem .75rem;
  font-size: .8rem;
  width: auto;
}
.btn-del:hover { background: #fee2e2; }

/* ── Badges ─────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 9999px;
  font-size: .7rem;
  font-weight: 600;
}
.cat  { background: #dbeafe; color: #1d4ed8; }
.prod { background: #d1fae5; color: #065f46; }
.srch { background: #fef9c3; color: #854d0e; }
.sp-badge {
  display: inline-block;
  padding: .1rem .4rem;
  background: #fef9c3;
  color: #854d0e;
  border-radius: 4px;
  font-size: .65rem;
  font-weight: 600;
  vertical-align: middle;
}

/* ── State colours ──────────────────────────────────────── */
.neg   { color: var(--danger);  font-weight: 700; }
.pos   { color: var(--success); font-weight: 700; }
.muted { color: var(--muted); }
a.lnk  { color: var(--accent); text-decoration: none; }
a.lnk:hover { text-decoration: underline; }

/* ── Targets table (simple, horizontal scroll on mobile) ── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; }
th {
  padding: .5rem .85rem;
  text-align: left;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
}
td {
  padding: .55rem .85rem;
  border-bottom: 1px solid var(--border);
  font-size: .85rem;
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #f8fafc; }
.trunc { max-width: 180px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ── Empty state ────────────────────────────────────────── */
.empty { padding: 2.5rem 1rem; text-align: center; color: var(--muted); font-size: .9rem; }

/* ────────────────────────────────────────────────────────── */
/*  REPORTS — MOBILE: product cards                          */
/* ────────────────────────────────────────────────────────── */
.report-table { display: none; }   /* hidden on mobile */
.report-cards { padding: .875rem; display: flex; flex-direction: column; gap: .75rem; }

.rcard {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .875rem;
  background: #fff;
  display: grid;
  grid-template-columns: 1fr auto;
  column-gap: .875rem;
  row-gap: .2rem;
}
.rcard.sp { opacity: .7; }

.rcard-name {
  grid-column: 1;
  font-size: .9rem;
  font-weight: 600;
  color: var(--accent);
  text-decoration: none;
  line-height: 1.35;
}
.rcard-name:hover { text-decoration: underline; }

/* The delta is the hero on mobile */
.rcard-delta {
  grid-column: 2;
  grid-row: 1 / 3;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  font-size: 1.875rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  min-width: 56px;
  text-align: right;
}

.rcard-sku {
  grid-column: 1;
  font-size: .75rem;
  color: var(--muted);
}

.rcard-meta {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.25rem;
  margin-top: .5rem;
  padding-top: .6rem;
  border-top: 1px solid var(--border);
}
.rcard-stat { display: flex; flex-direction: column; gap: .05rem; }
.rcard-stat-label {
  font-size: .65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--muted);
}
.rcard-stat-value { font-size: .85rem; font-weight: 500; }

/* ────────────────────────────────────────────────────────── */
/*  DESKTOP overrides (≥ 640 px)                             */
/* ────────────────────────────────────────────────────────── */
@media (min-width: 640px) {
  .hdr { padding: .8rem 1.5rem; }

  main {
    padding: 1.5rem;
    max-width: 1200px;
    margin: 1.5rem auto;
    gap: 1.5rem;
  }

  .card-body  { padding: 1.25rem 1.5rem; }
  .card-hdr   { padding: .9rem 1.5rem; }

  form.row {
    flex-direction: row;
    align-items: flex-end;
    flex-wrap: wrap;
  }
  input[type=text],
  input[type=date],
  select,
  input#search { width: auto; }
  input[type=text]:not(#search) { width: 340px; }
  .filter-sel  { min-width: 240px; }
  input#search { width: 200px; }
  .btn         { width: auto; }

  .trunc { max-width: 280px; }

  /* Swap representations */
  .report-table { display: block; }
  .report-cards { display: none; }

  th, td { padding: .5rem 1rem; }

  tr.sp td { color: var(--muted); }
}

@media (min-width: 1024px) {
  main { margin-top: 2rem; }
}

/* ── Reduced motion ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
}