/* ═══════════════════════════════════════════════════════════════════════════
   Stock Inteligente — Ferrilopez
   Minimalist design · optimized for data density · 7k SKUs
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── Tokens ─────────────────────────────────────────────────────────────── */
:root {
  --c-critical:  #e53e3e;
  --c-high:      #dd6b20;
  --c-medium:    #d69e2e;
  --c-ok:        #38a169;
  --c-over:      #6b46c1;
  --c-blue:      #3182ce;
  --c-muted:     #718096;

  --bg:          #f7f8fa;
  --bg-card:     #ffffff;
  --border:      #e2e8f0;
  --border-dark: #cbd5e0;

  --text:        #1a202c;
  --text-2:      #4a5568;
  --text-3:      #718096;

  --r:           6px;
  --shadow:      0 1px 2px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.08);

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 13px; }
body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.5; -webkit-font-smoothing: antialiased; }
a { color: var(--c-blue); text-decoration: none; }
button { cursor: pointer; font-family: inherit; }
input, select { font-family: inherit; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.app-header {
  position: sticky; top: 0; z-index: 60;
  height: 48px;
  background: #1a202c;
  color: #e2e8f0;
  display: flex; align-items: center; gap: 1rem;
  padding: 0 1rem;
  border-bottom: 1px solid #2d3748;
}

.app-header__logo {
  font-weight: 700; font-size: .85rem; letter-spacing: .02em;
  white-space: nowrap; color: #fff;
  display: flex; align-items: center; gap: .4rem;
}

.app-header__divider { width: 1px; height: 20px; background: #2d3748; flex-shrink: 0; }

.app-header__status {
  display: flex; align-items: center; gap: .35rem;
  font-size: .75rem; color: #a0aec0;
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--c-ok); flex-shrink: 0; }
.dot.err { background: var(--c-critical); }
.dot.warn { background: var(--c-medium); animation: pulse 2s infinite; }

@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:.4; } }

.app-header__spacer { flex: 1; }

.app-header__ts { font-size: .72rem; color: #718096; white-space: nowrap; }

.hbtn {
  display: inline-flex; align-items: center; gap: .25rem;
  padding: .28rem .6rem;
  border-radius: 4px;
  border: 1px solid #4a5568;
  background: transparent;
  color: #cbd5e0;
  font-size: .72rem;
  transition: background .15s, border-color .15s;
  white-space: nowrap;
}
.hbtn:hover { background: #2d3748; border-color: #718096; color: #fff; }
.hbtn--accent { border-color: var(--c-blue); color: #90cdf4; }
.hbtn--accent:hover { background: rgba(49,130,206,.15); }

/* ── Notification bar ───────────────────────────────────────────────────── */
.notif-bar {
  background: var(--c-critical);
  color: #fff;
  font-size: .75rem;
  font-weight: 500;
  padding: .3rem 1rem;
  display: none; align-items: center; gap: .5rem;
  border-bottom: 1px solid rgba(0,0,0,.1);
}
.notif-bar.show { display: flex; }
.notif-bar__close { margin-left: auto; background: none; border: none; color: #fff; font-size: 1rem; opacity: .7; cursor: pointer; }

/* ── Layout ─────────────────────────────────────────────────────────────── */
.app-body {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto auto 1fr;
  min-height: calc(100vh - 48px);
}

.main-pane {
  display: flex; flex-direction: column; gap: .75rem;
  padding: .75rem 1rem;
  min-width: 0;
}

/* ── KPI Strip ──────────────────────────────────────────────────────────── */
.kpi-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: .5rem;
}
@media (min-width: 600px)  { .kpi-strip { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 900px)  { .kpi-strip { grid-template-columns: repeat(6, 1fr); } }

.kpi {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: .65rem .75rem;
  border-top: 2px solid var(--border);
}
.kpi.k-alert   { border-top-color: var(--c-critical); }
.kpi.k-warn    { border-top-color: var(--c-medium); }
.kpi.k-ok      { border-top-color: var(--c-ok); }
.kpi.k-blue    { border-top-color: var(--c-blue); }
.kpi.k-over    { border-top-color: var(--c-over); }
.kpi.k-neutral { border-top-color: var(--border-dark); }

.kpi__label { font-size: .68rem; color: var(--text-3); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: .2rem; }
.kpi__val   { font-size: 1.35rem; font-weight: 700; line-height: 1; letter-spacing: -.02em; }
.kpi__sub   { font-size: .65rem; color: var(--text-3); margin-top: .15rem; }

/* KPI Tooltips */
.kpi { position: relative; cursor: default; }
.kpi[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  color: var(--text-1);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: .45rem .6rem;
  font-size: .7rem;
  line-height: 1.35;
  width: max-content;
  max-width: 220px;
  white-space: normal;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  z-index: 100;
  pointer-events: none;
  opacity: 0;
  transition: opacity .15s ease;
}
.kpi[data-tooltip]:hover::after {
  opacity: 1;
}

/* ── Risk Pill Row ──────────────────────────────────────────────────────── */
.risk-row {
  display: flex; flex-wrap: wrap; gap: .4rem;
}

.rpill {
  display: inline-flex; align-items: center; gap: .35rem;
  padding: .32rem .7rem;
  border-radius: 99px;
  border: 1.5px solid var(--border);
  background: var(--bg-card);
  font-size: .75rem; font-weight: 600;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  user-select: none;
  white-space: nowrap;
}
.rpill:hover { border-color: var(--border-dark); background: var(--bg); }
.rpill.active { background: var(--pill-bg, #ebf8ff); border-color: var(--pill-border, var(--c-blue)); color: var(--pill-text, var(--c-blue)); }

.rpill--so   { --pill-bg:#fff5f5; --pill-border:var(--c-critical); --pill-text:var(--c-critical); }
.rpill--ov   { --pill-bg:#faf5ff; --pill-border:var(--c-over);     --pill-text:var(--c-over); }
.rpill--ms   { --pill-bg:#fffff0; --pill-border:var(--c-medium);   --pill-text:var(--c-medium); }
.rpill--ro   { --pill-bg:#ebf8ff; --pill-border:var(--c-blue);     --pill-text:var(--c-blue); }
.rpill--all  { --pill-bg:#f7f8fa; --pill-border:var(--border-dark);--pill-text:var(--text-2); }

.rpill__count { font-variant-numeric: tabular-nums; }

/* ── Table Card ─────────────────────────────────────────────────────────── */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  min-height: 0;
  flex: 1;
}

.table-toolbar {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: .4rem; padding: .5rem .75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--r) var(--r) 0 0;
}
.table-toolbar__title { font-size: .78rem; font-weight: 600; color: var(--text-2); }

.search-wrap {
  position: relative; display: flex; align-items: center;
}
.search-wrap svg { position: absolute; left: .5rem; pointer-events: none; color: var(--text-3); }
.search-input {
  padding: .3rem .6rem .3rem 1.75rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .75rem;
  background: var(--bg-card);
  color: var(--text);
  width: 170px;
  transition: border-color .15s, width .2s;
}
.search-input:focus { outline: none; border-color: var(--c-blue); width: 220px; }

.tbar-select {
  padding: .3rem .5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .75rem;
  background: var(--bg-card);
  color: var(--text);
}
.tbar-select:focus { outline: none; border-color: var(--c-blue); }

.tbar-spacer { flex: 1; }

.tbtn {
  display: inline-flex; align-items: center; gap: .2rem;
  padding: .28rem .55rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-card);
  font-size: .72rem; color: var(--text-2);
  transition: background .1s;
}
.tbtn:hover { background: var(--bg); border-color: var(--border-dark); }

/* ── Table ──────────────────────────────────────────────────────────────── */
.table-scroll { overflow: auto; flex: 1; }

table { width: 100%; border-collapse: collapse; font-size: .78rem; table-layout: fixed; }

colgroup col.col-sku      { width: 110px; }
colgroup col.col-stock    { width: 72px; }
colgroup col.col-cov      { width: 80px; }
colgroup col.col-rop      { width: 64px; }
colgroup col.col-qty      { width: 70px; }
colgroup col.col-risk     { width: 80px; }
colgroup col.col-risk2    { width: 80px; }
colgroup col.col-prob     { width: 60px; }
colgroup col.col-cls      { width: 50px; }
colgroup col.col-wh       { width: 90px; }

thead { position: sticky; top: 0; z-index: 2; }
thead th {
  background: var(--bg);
  padding: .45rem .6rem;
  text-align: left;
  font-size: .68rem; font-weight: 600;
  color: var(--text-3);
  text-transform: uppercase; letter-spacing: .05em;
  border-bottom: 1px solid var(--border-dark);
  white-space: nowrap;
  user-select: none;
}
thead th.r { text-align: right; }

tbody tr {
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .08s;
}
tbody tr:hover { background: #f0f4ff; }
tbody tr.selected { background: #ebf8ff; }
tbody tr.selected td { border-bottom-color: #bee3f8; }

tbody td {
  padding: .4rem .6rem;
  vertical-align: middle;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
td.r { text-align: right; font-variant-numeric: tabular-nums; }

.sku-code {
  font-family: var(--mono); font-size: .75rem; font-weight: 600;
  color: var(--c-blue); letter-spacing: .02em;
}

/* Coverage severity */
.cov-c { color: var(--c-critical); font-weight: 700; }
.cov-h { color: var(--c-high); }
.cov-m { color: var(--c-medium); }
.cov-o { color: var(--c-ok); }
.cov-x { color: var(--c-over); }   /* overstock range */

/* Risk % */
.rv    { font-variant-numeric: tabular-nums; font-size: .74rem; }
.rv-c  { color: var(--c-critical); font-weight: 700; }
.rv-h  { color: var(--c-high); font-weight: 600; }
.rv-m  { color: var(--c-medium); }
.rv-ok { color: var(--text-3); }

.qty-bold { font-weight: 700; color: var(--c-critical); }

.cls-badge {
  display: inline-block; padding: .05rem .3rem;
  border-radius: 3px; font-size: .66rem; font-weight: 700;
}
.cls-A { background: #fffbeb; color: #92400e; }
.cls-B { background: #eff6ff; color: #1e40af; }
.cls-C { background: #f8fafc; color: #64748b; }

/* ── Table Footer ───────────────────────────────────────────────────────── */
.table-footer {
  display: flex; align-items: center; gap: .5rem;
  padding: .4rem .75rem;
  border-top: 1px solid var(--border);
  background: var(--bg);
  border-radius: 0 0 var(--r) var(--r);
  font-size: .72rem; color: var(--text-3);
  flex-wrap: wrap;
}
.table-footer__spacer { flex: 1; }
.pg-btn {
  padding: .22rem .5rem;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: var(--bg-card);
  font-size: .72rem; color: var(--text-2);
}
.pg-btn:hover:not(:disabled) { background: var(--bg); border-color: var(--border-dark); }
.pg-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ── SKU Detail Panel ───────────────────────────────────────────────────── */
.overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.25);
  z-index: 70; opacity: 0; pointer-events: none;
  transition: opacity .18s;
}
.overlay.open { opacity: 1; pointer-events: all; }

.detail-panel {
  position: fixed; right: 0; top: 0;
  height: 100vh; width: 520px; max-width: 100vw;
  background: var(--bg-card);
  box-shadow: -4px 0 20px rgba(0,0,0,.12);
  transform: translateX(100%);
  transition: transform .22s ease;
  z-index: 80;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.detail-panel.open { transform: translateX(0); }

.dp-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: .65rem 1rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
}
.dp-sku   { font-family: var(--mono); font-size: .95rem; font-weight: 700; color: var(--c-blue); }
.dp-wh    { font-size: .7rem; color: var(--text-3); margin-top: .1rem; }
.dp-close { background: none; border: none; color: var(--text-3); font-size: 1.1rem; padding: .2rem .35rem; border-radius: 3px; }
.dp-close:hover { background: var(--border); color: var(--text); }

.dp-body { flex: 1; overflow-y: auto; padding: .75rem 1rem; display: flex; flex-direction: column; gap: .75rem; }

.dp-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: .4rem;
}
.dp-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .35rem .5rem;
}
.dp-chip__l { font-size: .62rem; color: var(--text-3); font-weight: 500; }
.dp-chip__v { font-size: .82rem; font-weight: 700; margin-top: .1rem; }

.dp-section-title { font-size: .68rem; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .05em; margin-bottom: .3rem; }
.chart-wrap { position: relative; height: 160px; }
.chart-wrap--sm { height: 130px; }

.order-row {
  display: flex; align-items: center; gap: .5rem;
  padding: .35rem .5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .76rem;
}
.order-row + .order-row { margin-top: .3rem; }

.suggest-box {
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 4px;
  padding: .55rem .7rem;
  font-size: .76rem;
}
.suggest-box__title { font-weight: 700; color: #1d4ed8; margin-bottom: .15rem; }

/* ── Alerts Drawer ──────────────────────────────────────────────────────── */
.alerts-drawer {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  max-height: 380px;
}

.alerts-header {
  display: flex; align-items: center; gap: .5rem;
  padding: .5rem .75rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--r) var(--r) 0 0;
  flex-shrink: 0;
  flex-wrap: wrap;
}
.alerts-title { font-size: .78rem; font-weight: 700; }
.alert-count-badge {
  display: inline-flex; align-items: center; justify-content: center;
  min-width: 1.4rem; height: 1.4rem; padding: 0 .3rem;
  background: var(--c-critical); color: #fff;
  border-radius: 99px; font-size: .66rem; font-weight: 700;
}
.alert-count-badge.warn { background: var(--c-medium); }
.alert-count-badge.ok   { background: var(--c-ok); }

.alerts-filters { display: flex; gap: .3rem; flex-wrap: wrap; }
.sev-pill {
  padding: .15rem .4rem;
  border-radius: 3px;
  font-size: .65rem; font-weight: 600;
  border: 1px solid var(--border);
  background: var(--bg-card);
  cursor: pointer;
  transition: background .1s;
}
.sev-pill:hover { background: var(--bg); }
.sev-pill.active { color: #fff; border-color: transparent; }
.sev-pill.sev-CRITICAL.active { background: var(--c-critical); }
.sev-pill.sev-HIGH.active     { background: var(--c-high); }
.sev-pill.sev-MEDIUM.active   { background: var(--c-medium); }
.sev-pill.sev-LOW.active      { background: var(--c-blue); }

.alerts-body { overflow-y: auto; flex: 1; }

.alert-row {
  display: grid;
  grid-template-columns: 1.4rem 72px 1fr 3rem;
  align-items: center; gap: .4rem;
  padding: .38rem .75rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background .08s;
  font-size: .75rem;
}
.alert-row:hover { background: var(--bg); }
.alert-row__ico  { text-align: center; font-size: .85rem; }
.alert-row__sku  { font-family: var(--mono); font-size: .72rem; font-weight: 600; color: var(--c-blue); overflow: hidden; text-overflow: ellipsis; }
.alert-row__msg  { color: var(--text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.alert-row__ts   { color: var(--text-3); font-size: .65rem; text-align: right; }

.alerts-footer {
  display: flex; align-items: center; justify-content: space-between;
  padding: .35rem .75rem;
  border-top: 1px solid var(--border);
  font-size: .7rem; color: var(--text-3);
  background: var(--bg);
  border-radius: 0 0 var(--r) var(--r);
}

/* ── Skeleton ───────────────────────────────────────────────────────────── */
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }
.sk {
  background: linear-gradient(90deg, #edf2f7 25%, #e2e8f0 50%, #edf2f7 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s ease-in-out infinite;
  border-radius: 3px;
  display: inline-block;
}
.sk-line { height: .8em; width: 60%; margin: .25rem 0; }
.sk-val  { height: 1.4rem; width: 75%; margin: .2rem 0; }
.sk-row  { height: 2.1rem; width: 100%; display: block; }

/* ── Empty ──────────────────────────────────────────────────────────────── */
.empty {
  text-align: center; padding: 2rem 1rem;
  color: var(--text-3); font-size: .8rem;
}
.empty__icon { font-size: 1.8rem; display: block; margin-bottom: .5rem; opacity: .5; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (min-width: 1100px) {
  .app-body      { grid-template-columns: 1fr 320px; grid-template-rows: auto 1fr; }
  .main-pane     { grid-column: 1; grid-row: 1 / 3; padding: .75rem .75rem .75rem 1rem; }
  .alerts-pane   { grid-column: 2; grid-row: 1 / 3; padding: .75rem 1rem .75rem .25rem; display: flex; flex-direction: column; gap: .75rem; }
}
@media (max-width: 1099px) {
  .alerts-pane { padding: 0 1rem .75rem; }
}
@media (max-width: 480px) {
  html { font-size: 12px; }
  .detail-panel { width: 100vw; }
  .alert-row { grid-template-columns: 1.2rem 56px 1fr; }
  .alert-row__ts { display: none; }
  .dp-metrics { grid-template-columns: repeat(2, 1fr); }
}

/* ── User Chip ───────────────────────────────────────────────────────────── */
.user-chip {
  display: flex; align-items: center; gap: .35rem;
  padding: .18rem .45rem;
  border-radius: 99px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  max-width: 160px;
}
.user-avatar {
  width: 22px; height: 22px;
  border-radius: 50%; object-fit: cover; flex-shrink: 0;
}
.user-name {
  font-size: .72rem; color: #cbd5e0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.hbtn--logout {
  background: none; border: none;
  color: #a0aec0; font-size: .7rem;
  padding: 0 .2rem; cursor: pointer;
  display: inline-flex; align-items: center; gap: .2rem;
  border-left: 1px solid rgba(255,255,255,.15); padding-left: .35rem; margin-left: .1rem;
}
.hbtn--logout:hover { color: var(--c-critical); }

/* ── Utilities ──────────────────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.hidden  { display: none !important; }
.ml-auto { margin-left: auto; }