/* Panel de administración — estilo funcional, coherente con la marca ZERISK
   (navy #0D1B3E, cian acento #00C2D1) pero sin imitar el diseño de los emails:
   esta es una herramienta interna, prioriza legibilidad y densidad de información. */

:root {
  --navy: #0D1B3E;
  --navy-light: #1A3A6B;
  --cyan: #00C2D1;
  --cyan-dark: #00A6B3;
  --bg: #F5F7FB;
  --surface: #FFFFFF;
  --border: #E2E8F5;
  --text: #1A1A1A;
  --text-muted: #6B7280;
  --success-bg: #E6F7EE;
  --success-text: #0F8A4B;
  --error-bg: #FDECEC;
  --error-text: #B3261E;
  --radius: 8px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Arial, Helvetica, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

a { color: var(--navy-light); text-decoration: none; }
a:hover { text-decoration: underline; }

.navbar {
  background-color: var(--navy);
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 4px;
  height: 56px;
}

.navbar .brand {
  color: #FFFFFF;
  font-weight: bold;
  font-size: 16px;
  letter-spacing: 0.3px;
  margin-right: 24px;
}

.navbar a {
  color: #C7D0E8;
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
}

.navbar a:hover { color: #FFFFFF; text-decoration: none; background: rgba(255,255,255,0.06); }

.navbar a.active {
  color: #FFFFFF;
  background: rgba(0, 194, 209, 0.16);
  box-shadow: inset 0 -2px 0 var(--cyan);
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 24px 64px 24px;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-header h1 { font-size: 22px; margin: 0; color: var(--navy); }
.page-header p { margin: 4px 0 0 0; color: var(--text-muted); font-size: 14px; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 20px;
}

.card-accent {
  border-left: 4px solid var(--cyan);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.stat-card .stat-value { font-size: 28px; font-weight: bold; color: var(--navy); }
.stat-card .stat-label { font-size: 12px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-muted); }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; font-weight: 600; }
tr:hover td { background: #FAFBFE; }

.btn {
  display: inline-block;
  padding: 9px 18px;
  border-radius: 6px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--cyan); color: #FFFFFF; }
.btn-primary:hover { background: var(--cyan-dark); }
.btn-secondary { background: var(--surface); color: var(--navy-light); border: 1.5px solid var(--navy-light); }
.btn-danger { background: var(--error-bg); color: var(--error-text); border: 1px solid #F3C6C4; }
.btn-sm { padding: 5px 12px; font-size: 13px; }

form .field { margin-bottom: 16px; }
label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--navy); }
input[type=text], input[type=file], input[type=email], select, textarea {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
}
textarea { font-family: "Cascadia Code", Consolas, monospace; font-size: 13px; }
.checkbox-group label { display: inline-flex; align-items: center; gap: 6px; font-weight: 500; margin-right: 16px; }
.checkbox-group input { width: auto; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge-draft { background: #EEF1F8; color: var(--text-muted); }
.badge-sent { background: var(--success-bg); color: var(--success-text); }
.badge-sending { background: #FFF4E0; color: #9A6300; }
.badge-queued { background: #FFF4E0; color: #9A6300; }
.badge-failed { background: var(--error-bg); color: var(--error-text); }
.badge-ok { background: var(--success-bg); color: var(--success-text); }
.badge-fail { background: var(--error-bg); color: var(--error-text); }

.flash {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 20px;
  font-size: 14px;
}
.flash-success { background: var(--success-bg); color: var(--success-text); }
.flash-error { background: var(--error-bg); color: var(--error-text); }

.security-notice {
  background: #FFF4E0;
  color: #7A4E00;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: 12.5px;
  margin-bottom: 20px;
}

.editor-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  align-items: start;
}
@media (max-width: 900px) {
  .editor-layout { grid-template-columns: 1fr; }
}
.editor-layout .CodeMirror { border: 1px solid var(--border); border-radius: 6px; height: 480px; }
.preview-frame {
  width: 100%;
  height: 560px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
}
.muted { color: var(--text-muted); font-size: 13px; }
.empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 4px solid var(--cyan);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 380px;
  box-shadow: 0 6px 24px rgba(13, 27, 62, 0.08);
}
.login-card h1 { color: var(--navy); font-size: 20px; margin: 0 0 4px 0; }
.login-card .brand-mark { color: var(--cyan-dark); font-weight: bold; letter-spacing: 0.5px; font-size: 13px; }
input[type=password] {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: var(--surface);
}