:root {
  --bepp-primary: #217CB8;
  --bepp-primary-dark: #1a5f8f;
  --bepp-accent: #4DB849;
  --bepp-bg: #f6f8fa;
  --bepp-surface: #ffffff;
  --bepp-text: #0f172a;
  --bepp-text-soft: #64748b;
  --bepp-border: #e2e8f0;
  --bepp-error: #dc2626;
  --bepp-error-bg: #fee2e2;
  --bepp-warn: #d97706;
  --bepp-warn-bg: #fef3c7;
  --bepp-success: #047857;
  --bepp-success-bg: #d1fae5;
  --side-w: 240px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bepp-bg);
  color: var(--bepp-text);
  -webkit-font-smoothing: antialiased;
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--bepp-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* =========================================================================
   APP SHELL
========================================================================= */
.adm-app {
  display: grid;
  grid-template-columns: var(--side-w) 1fr;
  min-height: 100vh;
}
.adm-side {
  background: #0f172a;
  color: #e2e8f0;
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}
.adm-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
  padding-bottom: 0;
}
.adm-brand-logo {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--bepp-primary);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
}
.adm-brand-name { font-weight: 700; font-size: 15px; color: #fff; }
.adm-brand-tag { font-size: 11px; color: #94a3b8; }

.adm-nav { flex: 1; }
.adm-nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 2px; }
.adm-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 7px;
  color: #cbd5e1;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.1s;
}
.adm-nav a:hover { background: #1e293b; color: #fff; text-decoration: none; }
.adm-nav a.on { background: var(--bepp-primary); color: #fff; }
.adm-nav .ic {
  display: inline-block;
  width: 16px;
  text-align: center;
  font-family: ui-monospace, Menlo, monospace;
  font-size: 13px;
  opacity: 0.8;
}

.adm-side-foot {
  border-top: 1px solid #1e293b;
  padding-top: 12px;
  margin-top: 12px;
}
.adm-user {
  font-size: 12px;
  color: #94a3b8;
  margin-bottom: 6px;
  word-break: break-all;
}
.adm-link {
  background: transparent;
  color: #cbd5e1;
  border: 0;
  padding: 0;
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  text-decoration: underline;
}
.adm-link:hover { color: #fff; }

.adm-main {
  padding: 0;
  overflow-x: hidden;
}
.adm-header {
  background: var(--bepp-surface);
  border-bottom: 1px solid var(--bepp-border);
  padding: 18px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}
.adm-header h1 { font-size: 20px; font-weight: 700; margin: 0; }

.adm-content {
  padding: 24px 28px;
  max-width: 1400px;
}

/* =========================================================================
   AUTH (login / OTP)
========================================================================= */
.adm-auth-body {
  background: linear-gradient(180deg, var(--bepp-primary) 0%, var(--bepp-primary-dark) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.adm-auth-wrap { max-width: 420px; width: 100%; }
.adm-auth-card {
  background: #fff;
  border-radius: 14px;
  padding: 32px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}
.adm-auth-card h2 { font-size: 20px; margin: 0 0 8px; }
.adm-auth-card p { font-size: 14px; color: var(--bepp-text-soft); margin: 0 0 20px; }

/* =========================================================================
   FLASH / ALERTS
========================================================================= */
.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin: 0 28px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 500;
}
.adm-auth-card .flash { margin: 0 0 16px; }
.flash-ok { background: var(--bepp-success-bg); color: var(--bepp-success); }
.flash-error { background: var(--bepp-error-bg); color: var(--bepp-error); }
.flash-aviso { background: var(--bepp-warn-bg); color: var(--bepp-warn); }

/* =========================================================================
   FORMS
========================================================================= */
label { display: block; font-weight: 500; margin-bottom: 6px; font-size: 13px; }
.required::after { content: " *"; color: var(--bepp-error); }
input[type="text"], input[type="email"], input[type="tel"], input[type="number"], input[type="search"],
input[type="password"], input[type="date"], textarea, select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--bepp-border);
  border-radius: 7px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--bepp-text);
}
textarea { min-height: 96px; resize: vertical; font-family: ui-monospace, Menlo, monospace; }
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--bepp-primary);
  outline-offset: -1px;
}
.field { margin-bottom: 16px; }
.help { color: var(--bepp-text-soft); font-size: 12px; margin-top: 4px; }
.error-msg { color: var(--bepp-error); font-size: 13px; margin-top: 4px; }

button.btn, a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  border-radius: 7px;
  border: 1px solid transparent;
  font-family: inherit;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
  gap: 6px;
}
.btn-primary { background: var(--bepp-primary); color: #fff; }
.btn-primary:hover { background: var(--bepp-primary-dark); text-decoration: none; }
.btn-secondary { background: #fff; color: var(--bepp-text); border-color: var(--bepp-border); }
.btn-secondary:hover { border-color: var(--bepp-text-soft); text-decoration: none; }
.btn-danger { background: var(--bepp-error); color: #fff; }
.btn-danger:hover { background: #b91c1c; text-decoration: none; }
.btn-ghost { background: transparent; color: var(--bepp-primary); border: 0; padding: 4px 8px; font-size: 13px; }
.btn-ghost:hover { background: var(--bepp-bg); text-decoration: none; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; }

/* =========================================================================
   CARDS Y SECCIONES
========================================================================= */
.card {
  background: var(--bepp-surface);
  border: 1px solid var(--bepp-border);
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 20px;
}
.card-title { font-size: 15px; font-weight: 600; margin: 0 0 4px; }
.card-sub { color: var(--bepp-text-soft); font-size: 13px; margin: 0 0 16px; }

.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) { .grid-4 { grid-template-columns: repeat(2, 1fr); } .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 700px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.metric {
  background: var(--bepp-surface);
  border: 1px solid var(--bepp-border);
  border-radius: 10px;
  padding: 16px;
}
.metric-label { font-size: 12px; color: var(--bepp-text-soft); text-transform: uppercase; letter-spacing: 0.04em; font-weight: 600; margin-bottom: 6px; }
.metric-value { font-size: 26px; font-weight: 700; }
.metric-sub { font-size: 12px; color: var(--bepp-text-soft); margin-top: 4px; }

/* =========================================================================
   TABLAS
========================================================================= */
.table-wrap { overflow-x: auto; border: 1px solid var(--bepp-border); border-radius: 10px; background: #fff; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--bepp-border); }
.tbl th { background: #f8fafc; font-weight: 600; font-size: 12px; color: var(--bepp-text-soft); text-transform: uppercase; letter-spacing: 0.04em; white-space: nowrap; }
.tbl tbody tr:hover { background: #f8fafc; }
.tbl tbody tr:last-child td { border-bottom: 0; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.badge-active { background: #ecfdf5; color: var(--bepp-success); }
.badge-expired { background: #fef3c7; color: var(--bepp-warn); }
.badge-completed { background: #dbeafe; color: var(--bepp-primary); }
.badge-revoked { background: var(--bepp-error-bg); color: var(--bepp-error); }
.badge-pending { background: #f1f5f9; color: var(--bepp-text-soft); }
.badge-sent { background: #ecfdf5; color: var(--bepp-success); }
.badge-failed { background: var(--bepp-error-bg); color: var(--bepp-error); }
.badge-approved { background: #ecfdf5; color: var(--bepp-success); }
.badge-rejected { background: var(--bepp-error-bg); color: var(--bepp-error); }
.badge-csv { background: #ede9fe; color: #6d28d9; }
.badge-manual { background: #f1f5f9; color: var(--bepp-text-soft); }
.badge-request { background: #fef3c7; color: var(--bepp-warn); }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; margin-bottom: 16px; }
.toolbar > * { margin: 0; }
.toolbar input, .toolbar select { width: auto; min-width: 160px; }

.actions-cell { display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; }
.actions-cell form { margin: 0; }

.muted { color: var(--bepp-text-soft); }
.mono { font-family: ui-monospace, Menlo, monospace; font-size: 12px; }
.right { text-align: right; }
.center { text-align: center; }
.nowrap { white-space: nowrap; }
.divider { height: 1px; background: var(--bepp-border); margin: 20px 0; }

/* =========================================================================
   BAR CHART (sin librería)
========================================================================= */
.bar-row { display: grid; grid-template-columns: 160px 1fr 60px; gap: 12px; align-items: center; padding: 6px 0; font-size: 13px; }
.bar-track { background: #f1f5f9; height: 16px; border-radius: 4px; overflow: hidden; }
.bar-fill { background: var(--bepp-primary); height: 100%; }
.bar-row.bar-success .bar-fill { background: var(--bepp-success); }
.bar-row.bar-warn .bar-fill { background: var(--bepp-warn); }
.bar-row.bar-error .bar-fill { background: var(--bepp-error); }

/* =========================================================================
   PREVIEW EMAIL
========================================================================= */
.preview-frame {
  background: #fff;
  border: 1px solid var(--bepp-border);
  border-radius: 8px;
  padding: 18px;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
}
.preview-meta { font-size: 12px; color: var(--bepp-text-soft); margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--bepp-border); }
.preview-meta strong { color: var(--bepp-text); }

/* =========================================================================
   CSV PREVIEW
========================================================================= */
.csv-row-valid td { background: #fff; }
.csv-row-invalid td { background: #fef3f2; }
.csv-row-invalid td:first-child::before { content: "⚠"; color: var(--bepp-error); margin-right: 6px; font-weight: bold; }