:root {
  /* Marca: Quality Energy Consulting */
  --bg: #f4f7f1;
  --surface: #ffffff;
  --border: #e4ead9;
  --text: #33332f;          /* gris corporativo #3D3D3B, algo más oscuro para texto */
  --muted: #6f7566;
  --primary: #43712d;       /* verde principal Quality #43712d */
  --primary-dark: #35591f;
  --primary-soft: #eaf1e1;
  --charcoal: #3d3d3b;      /* color secundario */
  --brand-grad: linear-gradient(135deg, #c8dd9f 0%, #a7c775 55%, #7fae52 100%);
  --danger: #dc2626;
  --danger-soft: #fde8e8;
  --ok: #43712d;
  --ok-soft: #e7f2dc;
  --warn: #b45309;
  --shadow: 0 1px 3px rgba(40, 55, 25, .08), 0 1px 2px rgba(40, 55, 25, .04);
  --radius: 10px;
}

* { box-sizing: border-box; }

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

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

/* ---------- Layout ---------- */
.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 20px;
  height: 58px;
}
.brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  margin-right: 20px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.brand:hover { text-decoration: none; }
.brand img { height: 30px; width: auto; display: block; }
.brand .brand-txt { display: flex; flex-direction: column; line-height: 1; }
.brand .brand-txt .b1 { font-size: 15px; font-weight: 800; color: var(--primary); letter-spacing: .01em; }
.brand .brand-txt .b2 { font-size: 10px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-top: 2px; }
.nav { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav a {
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 8px;
  font-weight: 500;
}
.nav a:hover { background: var(--bg); text-decoration: none; color: var(--text); }
.nav a.active { background: var(--primary-soft); color: var(--primary-dark); }

.userbox { display: flex; align-items: center; gap: 12px; }
.userbox .who { text-align: right; line-height: 1.2; }
.userbox .who .name { font-weight: 600; font-size: 13px; }
.userbox .who .role { font-size: 12px; color: var(--muted); }

.container {
  max-width: 1180px;
  margin: 24px auto;
  padding: 0 20px;
}

/* ---------- Encabezados de página ---------- */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.page-head h1 { font-size: 22px; margin: 0; }
.page-head .sub { color: var(--muted); font-size: 14px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary);
  color: #fff;
  border: 1px solid var(--primary);
  padding: 9px 16px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
}
.btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn.secondary {
  background: var(--surface); color: var(--text); border-color: var(--border);
}
.btn.secondary:hover { background: var(--bg); }
.btn.danger { background: var(--danger); border-color: var(--danger); }
.btn.danger:hover { background: #b91c1c; }
.btn.small { padding: 6px 11px; font-size: 13px; }
.btn.ghost { background: transparent; color: var(--muted); border-color: transparent; }
.btn.ghost:hover { background: var(--bg); }

/* ---------- Tarjetas ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.card + .card { margin-top: 18px; }
.card h2 { font-size: 16px; margin: 0 0 14px; }
.card h3 { font-size: 14px; margin: 0 0 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }

/* ---------- Grid de estadísticas ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
}
.stat .num { font-size: 28px; font-weight: 700; }
.stat .lbl { color: var(--muted); font-size: 13px; margin-top: 2px; }
.stat.accent .num { color: var(--primary); }

/* ---------- Tablas ---------- */
table { width: 100%; border-collapse: collapse; }
th {
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--muted);
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
td { padding: 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #fafbfe; }
.t-id { color: var(--muted); font-variant-numeric: tabular-nums; font-weight: 600; }

/* ---------- Badges ---------- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.st-abierto   { background: #eef1f6; color: #4a5b70; }
.st-progreso  { background: #fbeed6; color: #b45309; }
.st-espera    { background: #f1f0fb; color: #6d28d9; }
.st-resuelto  { background: #e2efd2; color: #43712d; }
.st-cerrado   { background: #edefe9; color: #6f7566; }

.pr-baja     { background: #edefe9; color: #6f7566; }
.pr-media    { background: #eef1f6; color: #4a5b70; }
.pr-alta     { background: #fbeed6; color: #b45309; }
.pr-critica  { background: #fde8e8; color: #b91c1c; }

.role-badge { background: #edefe9; color: #55604a; }
.role-badge.admin { background: #e2efd2; color: #43712d; }

/* ---------- Formularios ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 4px; }
.field label { font-size: 13px; font-weight: 600; color: var(--text); }
.field .hint { font-size: 12px; color: var(--muted); }
input[type=text], input[type=email], input[type=password], input[type=tel],
select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(67, 113, 45, .15);
}
textarea { resize: vertical; min-height: 90px; }
.form-actions { display: flex; gap: 10px; margin-top: 18px; }

/* ---------- Barra de filtros ---------- */
.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-end;
  margin-bottom: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: var(--shadow);
}
.filters .field { margin: 0; }
.filters input[type=text] { min-width: 240px; }
.filters select { min-width: 150px; }

/* ---------- Flash ---------- */
.flash {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 18px;
  font-weight: 500;
  border: 1px solid transparent;
}
.flash.ok { background: var(--ok-soft); color: #35591f; border-color: #c7dcac; }
.flash.error { background: var(--danger-soft); color: #b91c1c; border-color: #f5c6c6; }

/* ---------- Detalle de ticket ---------- */
.detail-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 18px; align-items: start; }

.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li {
  position: relative;
  padding: 0 0 18px 22px;
  border-left: 2px solid var(--border);
}
.timeline li:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline li::before {
  content: '';
  position: absolute;
  left: -7px; top: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid var(--surface);
}
.timeline li.system::before { background: var(--muted); }
.timeline .meta { font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.timeline .meta .author { font-weight: 600; color: var(--text); }
.timeline .body { white-space: pre-wrap; }
.timeline li.system .body { color: var(--muted); font-style: italic; font-size: 13px; }

.kv { display: grid; grid-template-columns: auto 1fr; gap: 8px 14px; font-size: 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 500; }

.inline-form { display: flex; gap: 8px; align-items: center; }
.inline-form select { min-width: 130px; }

/* ---------- Adjuntos ---------- */
.att-list { list-style: none; padding: 0; margin: 8px 0 0; display: flex; flex-direction: column; gap: 6px; }
.att { display: flex; align-items: center; gap: 6px; }
.att-link {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-soft);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text);
  max-width: 100%;
}
.att-link:hover { text-decoration: none; border-color: var(--primary); }
.att-ico { flex: none; }
.att-name { font-weight: 600; color: var(--primary-dark); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 260px; }
.att-size { color: var(--muted); font-size: 12px; flex: none; }
.att-del {
  background: none; border: none; cursor: pointer;
  color: var(--muted); font-size: 18px; line-height: 1; padding: 0 4px;
}
.att-del:hover { color: var(--danger); }

.muted { color: var(--muted); }
.empty {
  text-align: center;
  padding: 48px 20px;
  color: var(--muted);
}
.empty .big { font-size: 40px; margin-bottom: 8px; }

.divider { height: 1px; background: var(--border); margin: 16px 0; border: none; }

.chips { display: flex; gap: 8px; flex-wrap: wrap; }

/* ---------- Login ---------- */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--brand-grad);
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 18px 50px rgba(40, 55, 25, .22);
  padding: 34px 32px;
  width: 100%;
  max-width: 380px;
}
.login-logo { display: block; margin: 4px auto 6px; height: 62px; width: auto; }
.login-card .tag { text-align: center; color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.login-card .btn { background: var(--primary); }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .form-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .hide-sm { display: none; }
}