:root {
    --bg: #f3f7fb;
    --card: rgba(255,255,255,0.95);
    --brand: #0b7bdc;
    --brand-dark: #0a5fb0;
    --brand-light: #edf6ff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-soft: #94a3b8;
    --border: #dbe6f0;
    --border-strong: #c5d5e4;
    --danger: #ef4444;
    --danger-soft: #fb7185;
    --warning: #f59e0b;
    --success: #10b981;
    --violet: #8b5cf6;
    --radius-xl: 24px;
    --radius-lg: 18px;
    --shadow: 0 18px 45px rgba(15, 23, 42, 0.08);
    --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.06);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
    background: radial-gradient(circle at top left, #f8fbff 0%, #f3f7fb 48%, #edf3f9 100%);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible {
    outline: 3px solid rgba(11, 123, 220, 0.18);
    outline-offset: 2px;
}
.hidden { display: none !important; }

.app-wrapper { min-height: 100vh; padding-top: 86px; }
.content { max-width: 1320px; margin: 0 auto; padding: 2rem; }
.dashboard-stack { display: grid; gap: 1.4rem; }

.top-nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: rgba(255,255,255,0.86);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(219, 230, 240, 0.9);
}
.nav-content {
    max-width: 1320px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.brand-block { display: flex; align-items: center; gap: .85rem; }
.logo { font-size: 1.45rem; font-weight: 800; letter-spacing: -.04em; }
.logo span { color: var(--brand); }
.brand-badge, .summary-pill, .results-counter, .file-kicker {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .38rem .72rem;
    border-radius: 999px;
    font-size: .73rem;
    font-weight: 800;
    background: var(--brand-light);
    color: var(--brand-dark);
}
.nav-summary { color: var(--text-muted); font-size: .92rem; }

.card, .card-mini {
    background: var(--card);
    border: 1px solid rgba(219, 230, 240, 0.95);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
}
.card { padding: 1.45rem; }
.card-mini { padding: 1.05rem 1.15rem; }

.eyebrow {
    color: var(--brand);
    font-size: .78rem;
    font-weight: 800;
}
.hero-upload { display: grid; gap: 1rem; }
.hero-head {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, .9fr);
    gap: 1rem;
    align-items: start;
}
.hero-head.compact h1 {
    margin: .35rem 0 0;
    font-size: clamp(2rem, 4vw, 2.85rem);
    line-height: .98;
    letter-spacing: -.05em;
}
.hero-head p, .hero-note, .file-meta, .mini-stat small, .table-head p, .action-mini-card p, .list-item span, .feedback-banner {
    color: var(--text-muted);
}
.hero-head p { margin: .7rem 0 0; max-width: 700px; line-height: 1.5; }
.hero-metrics { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: .75rem; }
.hero-metric {
    min-height: 108px;
    padding: .95rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, #fff 0%, #f7fbff 100%);
    box-shadow: var(--shadow-soft);
}
.hero-metric strong { display: block; font-size: .98rem; }
.hero-metric span { display: block; margin-top: .32rem; font-size: .82rem; color: var(--text-muted); }

.file-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .95rem; }
.file-input-wrapper { position: relative; }
.file-input-wrapper input { position: absolute; inset: 0; opacity: 0; }
.file-input-wrapper label {
    min-height: 132px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: .7rem;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1.5px dashed var(--border-strong);
    background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
    transition: .18s ease;
}
.file-input-wrapper label:hover {
    border-color: var(--brand);
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}
.file-input-wrapper.is-loaded label {
    border-style: solid;
    border-color: rgba(16,185,129,.32);
    background: linear-gradient(180deg, #fff 0%, #f3fff9 100%);
}
.file-input-wrapper strong { font-size: 1.03rem; }
.hero-actions { display: flex; align-items: center; gap: .9rem; flex-wrap: wrap; }
.btn-primary, .btn-secondary {
    border: none;
    border-radius: 12px;
    font-weight: 800;
    transition: .18s ease;
}
.btn-primary {
    background: var(--brand);
    color: white;
    padding: .92rem 1.35rem;
    box-shadow: 0 12px 20px rgba(11, 123, 220, .18);
}
.btn-primary:hover { background: var(--brand-dark); transform: translateY(-1px); }
.btn-secondary {
    background: white;
    color: var(--text-main);
    border: 1px solid var(--border);
    padding: .82rem 1rem;
}
.btn-secondary:hover { background: #f8fbff; }

.feedback-banner {
    padding: .92rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    font-weight: 700;
}
.feedback-banner.info { background: var(--brand-light); color: var(--brand-dark); }
.feedback-banner.success { background: #edfdf5; color: #047857; }
.feedback-banner.error { background: #fef2f2; color: #b91c1c; }

.toolbar { display: grid; gap: 1rem; }
.toolbar-main, .toolbar-secondary {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}
.toolbar-search { flex: 1; min-width: min(100%, 320px); display: grid; gap: .42rem; }
.toolbar-search label, .field-group label, .label, .mini-label {
    font-size: .8rem;
    font-weight: 800;
    color: var(--text-muted);
}
.toolbar-search input, .field-group select {
    height: 48px;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: .8rem .95rem;
    background: white;
}
.toolbar-filters { display: flex; gap: .85rem; flex-wrap: wrap; }
.field-group { display: grid; gap: .42rem; min-width: 180px; }
.chip-group { display: flex; gap: .65rem; flex-wrap: wrap; }
.chip {
    border: 1px solid var(--border);
    background: white;
    color: var(--text-muted);
    padding: .68rem .94rem;
    border-radius: 999px;
    font-weight: 800;
}
.chip.active, .chip:hover { background: var(--brand-light); border-color: rgba(11, 123, 220, .25); color: var(--brand-dark); }
.toolbar-actions-inline { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }

.summary-strip, .kpi-row { display: grid; gap: 1rem; }
.summary-strip.five-cols { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.kpi-row { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.mini-stat { min-height: 112px; display: grid; gap: .38rem; }
.mini-stat strong { font-size: 1.7rem; letter-spacing: -.04em; }

.stat-card {
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: rgba(255,255,255,0.95);
    box-shadow: var(--shadow-soft);
}
.stat-card .value { margin: .5rem 0; font-size: 1.95rem; font-weight: 800; letter-spacing: -.05em; }
.stat-card .trend { color: var(--text-muted); font-size: .8rem; }
.gradient-card { background: linear-gradient(135deg, #fff 0%, #f3fbff 100%); }
.stat-card.urgent { border-left: 4px solid var(--danger); }
.stat-card.warning { border-left: 4px solid var(--warning); }

.action-layout {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem;
    align-items: start;
}
.panel-span-7 { grid-column: span 7; }
.panel-span-5 { grid-column: span 5; }
.panel-span-3 { grid-column: span 3; }
.section-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: .95rem;
}
.section-head.compact { margin-bottom: .8rem; }
.section-head h3, .table-head h3 { margin: .28rem 0 0; font-size: 1.55rem; letter-spacing: -.035em; }
.section-head h4, .chart-head h4 { margin: .22rem 0 0; font-size: 1.25rem; letter-spacing: -.03em; }
.action-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .95rem;
}
.action-mini-card {
    min-height: 164px;
    padding: 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}
.action-mini-card strong {
    display: block;
    font-size: .93rem;
    text-transform: uppercase;
    letter-spacing: .01em;
}
.action-mini-card p { margin: .58rem 0 .95rem; line-height: 1.52; }
.action-mini-card .metric, .list-item .metric {
    font-size: 1.45rem;
    font-weight: 800;
    letter-spacing: -.04em;
}
.action-mini-card.danger { border-color: rgba(239,68,68,.34); }
.action-mini-card.warning { border-color: rgba(245,158,11,.36); }
.action-mini-card.neutral { border-color: rgba(148,163,184,.34); }
.action-mini-card.danger-soft { border-color: rgba(251,113,133,.34); }
.action-mini-card.violet { border-color: rgba(139,92,246,.32); background: linear-gradient(180deg, #fff 0%, #faf8ff 100%); }
.action-mini-card.success { border-color: rgba(16,185,129,.32); background: linear-gradient(180deg, #fff 0%, #f2fff9 100%); }

.insight-card {
    min-height: unset;
    display: grid;
    align-content: start;
}
.insight-primary .list-item { min-height: 104px; }
.insight-secondary .list-item { min-height: 118px; }
.list-grid { display: grid; gap: .75rem; }
.list-item {
    padding: .9rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: linear-gradient(180deg, #fff 0%, #fbfdff 100%);
    display: grid;
    gap: .32rem;
}
.list-item strong {
    font-size: .74rem;
    text-transform: uppercase;
    color: var(--brand-dark);
    letter-spacing: .03em;
}
.list-item small { color: var(--text-soft); font-weight: 700; }
.list-item .metric { font-size: 1.28rem; }
.list-item.danger-item { border-color: rgba(239,68,68,.28); background: linear-gradient(180deg, #fff 0%, #fff9fa 100%); }
.list-item.warning-item { border-color: rgba(245,158,11,.28); background: linear-gradient(180deg, #fff 0%, #fffaf0 100%); }
.list-item.neutral-item { border-color: rgba(148,163,184,.28); }
.list-item.empty-item { min-height: 108px; place-content: center; }

.chart-card { min-height: 320px; }
.compact-chart-card { padding: 1.2rem; }
.chart-card canvas { width: 100% !important; height: 250px !important; }
.list-grid.compact { gap: .65rem; }
.list-grid.compact .list-item {
    padding: .8rem .9rem;
    gap: .24rem;
}
.list-grid.compact .list-item .metric { font-size: 1.12rem; }
.list-grid.compact .list-item span {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.table-card { display: grid; gap: 1rem; }
.table-responsive {
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: white;
}
#mainTable {
    width: 100%;
    border-collapse: collapse;
    min-width: 980px;
}
#mainTable th, #mainTable td {
    padding: .92rem 1rem;
    border-bottom: 1px solid #edf2f7;
    text-align: left;
    vertical-align: middle;
}
#mainTable thead th {
    position: sticky;
    top: 0;
    background: #f8fbff;
    color: var(--text-muted);
    font-size: .78rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .03em;
    z-index: 1;
}
#mainTable tbody tr:hover { background: #f9fcff; }
.sku-cell { color: var(--text-muted); font-weight: 700; }
.product-cell { min-width: 300px; }
.status-tag, .class-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .38rem .66rem;
    border-radius: 999px;
    font-size: .72rem;
    font-weight: 800;
}
.tag-quiebre { background: #fef2f2; color: #b91c1c; }
.tag-sobre { background: #fff7ed; color: #c2410c; }
.tag-ok { background: #ecfdf5; color: #047857; }
.class-pill.a { background: #eff6ff; color: #1d4ed8; }
.class-pill.b { background: #fff7ed; color: #b45309; }
.class-pill.c { background: #faf5ff; color: #7c3aed; }
.empty-state {
    padding: 1rem 1.1rem;
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, #fff 0%, #f8fbff 100%);
}
.empty-state strong { display: block; margin-bottom: .3rem; }

@media (max-width: 1180px) {
    .hero-head,
    .kpi-row,
    .summary-strip.five-cols { grid-template-columns: 1fr 1fr; }
    .hero-head > :first-child { grid-column: 1 / -1; }
    .action-layout { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .panel-span-7,
    .panel-span-5 { grid-column: span 2; }
    .panel-span-3 { grid-column: span 1; }
}

@media (max-width: 860px) {
    .content { padding: 1rem; }
    .nav-content { padding: .9rem 1rem; align-items: flex-start; }
    .nav-summary { display: none; }
    .hero-metrics,
    .file-grid,
    .action-card-grid,
    .kpi-row,
    .summary-strip.five-cols,
    .action-layout { grid-template-columns: 1fr; }
    .panel-span-7,
    .panel-span-5,
    .panel-span-3 { grid-column: span 1; }
    .toolbar-main,
    .toolbar-secondary { align-items: stretch; }
    .toolbar-filters, .toolbar-actions-inline { width: 100%; }
    .field-group { min-width: 100%; }
}