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

:root {
  --blue:        #003DA5;
  --blue-dark:   #002A7A;
  --blue-light:  #1A56C4;
  --blue-faint:  #E8EEF9;
  --gold:        #C4A23A;
  --gray:        #6B7280;
  --border:      #DDE3EF;
  --bg:          #F5F4F0;
  --white:       #FFFFFF;
  --red:         #DC2626;
  --green:       #16A34A;
  --font:        'Montserrat', sans-serif;
  --radius:      10px;
  --shadow:      0 2px 12px rgba(0,0,0,.08);
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: #1a1a2e;
  font-size: 15px;
  min-height: 100vh;
}

/* ── Header ── */
header {
  background: var(--blue-dark);
  color: #fff;
  padding: 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
header h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.3px;
}
header .badge {
  background: var(--gold);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  letter-spacing: .5px;
  text-transform: uppercase;
}

/* ── Layout ── */
main {
  max-width: 960px;
  margin: 32px auto;
  padding: 0 20px;
}

/* ── Tabs ── */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 2px solid var(--border);
  flex-wrap: wrap;
}
.tab-btn {
  padding: 10px 20px;
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: .85rem;
  font-weight: 600;
  color: var(--gray);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.tab-btn:hover { color: var(--blue); }
.tab-btn.active {
  color: var(--blue);
  border-bottom-color: var(--blue);
}

/* ── Panels ── */
.panel { display: none; }
.panel.active { display: block; }

/* ── Cards ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 20px;
}
.card h2 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 20px;
}

/* ── Form elements ── */
.form-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-width: 140px;
}
.field label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: .5px;
}
.field input, .field select {
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 9px 12px;
  font-family: var(--font);
  font-size: .9rem;
  outline: none;
  transition: border-color .15s;
  background: var(--white);
}
.field input:focus, .field select:focus {
  border-color: var(--blue-light);
}

/* ── Buttons ── */
.btn {
  padding: 10px 24px;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, transform .1s;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: var(--blue);
  color: #fff;
}
.btn-primary:hover { background: var(--blue-light); }
.btn-primary:disabled {
  background: var(--gray);
  cursor: not-allowed;
  transform: none;
}

/* ── Results ── */
.results-wrap { margin-top: 24px; }
.results-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.results-count {
  font-size: .8rem;
  color: var(--gray);
  font-weight: 600;
}

/* ── Table ── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1.5px solid var(--border);
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
}
thead th {
  background: var(--blue-faint);
  color: var(--blue-dark);
  font-weight: 700;
  padding: 11px 14px;
  text-align: left;
  white-space: nowrap;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .4px;
}
tbody tr {
  border-top: 1px solid var(--border);
  transition: background .1s;
}
tbody tr:hover { background: var(--blue-faint); }
tbody td {
  padding: 10px 14px;
  white-space: nowrap;
}

/* ── State indicators ── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--gray);
}
.empty-state svg { opacity: .35; margin-bottom: 12px; }
.empty-state p { font-size: .9rem; }

.spinner {
  display: flex;
  justify-content: center;
  padding: 40px;
}
.spinner::after {
  content: '';
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  font-size: .85rem;
  font-weight: 600;
  margin-top: 16px;
}
.alert-error {
  background: #FEF2F2;
  color: var(--red);
  border: 1px solid #FECACA;
}

/* ── Premio badge ── */
.premio {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: .78rem;
  font-weight: 700;
}
.premio-si  { background: #D1FAE5; color: var(--green); }
.premio-no  { background: #F3F4F6; color: var(--gray); }

/* ── Ranking ventas ── */
.prov-block { margin-bottom: 28px; }

.prov-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--blue-dark);
  color: #fff;
  padding: 10px 16px;
  border-radius: 8px 8px 0 0;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .4px;
  text-transform: uppercase;
}
.prov-header .prov-stats {
  font-size: .75rem;
  font-weight: 400;
  opacity: .8;
}

.ranking-table { width: 100%; border-collapse: collapse; }
.ranking-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  font-size: .85rem;
  vertical-align: middle;
}
.ranking-table tr:last-child td { border-bottom: none; }
.ranking-table tr:hover td { background: var(--blue-faint); }

.rk-pos {
  width: 40px;
  text-align: center;
  font-weight: 700;
  font-size: .95rem;
  color: var(--gray);
}
.rk-pos.top { color: var(--gold); font-size: 1.1rem; }
.rk-admon strong { font-size: .88rem; display: block; color: #1a1a2e; }
.rk-admon span   { font-size: .78rem; color: var(--gray); }
.rk-bar-wrap {
  width: 120px;
}
.rk-bar-bg {
  height: 6px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.rk-bar-fill {
  height: 100%;
  background: var(--blue-light);
  border-radius: 3px;
  transition: width .4s ease;
}
.rk-count {
  width: 70px;
  text-align: right;
  font-weight: 700;
  font-size: .9rem;
  color: var(--blue-dark);
  white-space: nowrap;
}

/* ── select full width ── */
.field select { width: 100%; }

/* ── Responsive ── */
@media (max-width: 600px) {
  header { padding: 0 16px; }
  main { padding: 0 12px; margin-top: 20px; }
  .card { padding: 20px 16px; }
  .tab-btn { padding: 8px 14px; font-size: .8rem; }
}