:root {
  --verde-950: #0f2417;
  --verde-900: #143824;
  --verde-800: #1b4d31;
  --verde-700: #24663f;
  --verde-600: #2f7d4f;
  --verde-500: #3f9863;
  --verde-100: #e3efe6;
  --tierra-600: #a5642a;
  --tierra-500: #c17f3d;
  --tierra-100: #f6ead9;
  --bg: #f6f5f1;
  --card: #ffffff;
  --texto: #22291f;
  --texto-suave: #5b6459;
  --borde: #e2e0d6;
  --rojo: #b3402a;
  --amarillo: #b9860b;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20, 30, 20, 0.08), 0 1px 2px rgba(20, 30, 20, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--texto);
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  font-size: 15px;
}

a { color: var(--verde-700); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout { display: flex; min-height: 100vh; }

/* ---------- Topbar ---------- */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 58px;
  background: var(--verde-950);
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 18px;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
  letter-spacing: 0.2px;
}
.topbar .brand .icon { font-size: 1.4rem; }
.topbar .menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  margin-right: 10px;
}
.topbar .spacer { flex: 1; }
.topbar .establecimiento-select {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 0.9rem;
}
.topbar .session {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-left: 16px;
  font-size: 0.9rem;
}
.topbar .session a { color: #d7ecdd; }

/* ---------- Sidebar ---------- */
.sidebar {
  width: 232px;
  min-width: 232px;
  background: var(--verde-900);
  color: #dfeee3;
  min-height: 100vh;
  padding: 74px 0 20px;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
}
.sidebar .group-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #8fb79c;
  padding: 14px 20px 6px;
}
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: #dfeee3;
  font-size: 0.93rem;
  border-left: 3px solid transparent;
}
.sidebar a:hover { background: rgba(255,255,255,0.06); text-decoration: none; }
.sidebar a.active {
  background: rgba(255,255,255,0.08);
  border-left-color: var(--tierra-500);
  font-weight: 600;
  color: #fff;
}
.sidebar .icon { width: 20px; text-align: center; }

/* ---------- Content ---------- */
.content {
  margin-left: 232px;
  margin-top: 58px;
  padding: 24px 28px 60px;
  flex: 1;
  min-width: 0;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.page-header h1 { font-size: 1.5rem; margin: 0; color: var(--verde-950); }
.page-header .subtitle { color: var(--texto-suave); font-size: 0.9rem; margin-top: 2px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: 7px;
  padding: 9px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; filter: brightness(1.05); }
.btn-primary { background: var(--verde-700); color: #fff; }
.btn-primary:hover { background: var(--verde-600); }
.btn-secondary { background: #eceae2; color: var(--texto); }
.btn-tierra { background: var(--tierra-500); color: #fff; }
.btn-danger { background: var(--rojo); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; border-radius: 6px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---------- Cards / dashboard ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 14px;
  margin-bottom: 26px;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}
.stat-card .value { font-size: 1.8rem; font-weight: 700; color: var(--verde-900); }
.stat-card .label { font-size: 0.82rem; color: var(--texto-suave); margin-top: 2px; }
.stat-card.alerta .value { color: var(--rojo); }
.stat-card.aviso .value { color: var(--amarillo); }

.card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 20px;
}
.card h2, .card h3 { margin-top: 0; color: var(--verde-950); }

.dash-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 18px;
}
@media (max-width: 980px) { .dash-grid { grid-template-columns: 1fr; } }

.hub-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 14px;
}
.hub-card {
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  color: var(--texto);
}
.hub-card:hover { border-color: var(--verde-600); text-decoration: none; }
.hub-card .icon { font-size: 1.8rem; display: block; margin-bottom: 8px; }
.hub-card .title { font-weight: 600; font-size: 0.92rem; }

/* ---------- Tablas ---------- */
.table-wrap { overflow-x: auto; background: var(--card); border-radius: var(--radius); border: 1px solid var(--borde); box-shadow: var(--shadow); }
table.data { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
table.data th {
  text-align: left;
  background: var(--verde-100);
  color: var(--verde-950);
  padding: 10px 14px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom: 1px solid var(--borde);
  white-space: nowrap;
}
table.data td { padding: 9px 14px; border-bottom: 1px solid var(--borde); vertical-align: middle; }
table.data tbody tr:hover { background: #fafaf6; }
table.data tbody tr:last-child td { border-bottom: none; }
.empty-row { text-align: center; color: var(--texto-suave); padding: 30px; }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: 0.74rem;
  font-weight: 600;
  background: var(--verde-100);
  color: var(--verde-800);
}
.badge.vivo { background: var(--verde-100); color: var(--verde-800); }
.badge.vendido { background: var(--tierra-100); color: var(--tierra-600); }
.badge.muerto, .badge.faenado { background: #f4dede; color: var(--rojo); }
.badge.h { background: #fde7ef; color: #9d2159; }
.badge.m { background: #e4ecfb; color: #1e4e9c; }

/* ---------- Formularios ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
  margin-bottom: 16px;
  background: var(--card);
  border: 1px solid var(--borde);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.filter-bar .field { display: flex; flex-direction: column; gap: 4px; }
.filter-bar label { font-size: 0.75rem; color: var(--texto-suave); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px 18px;
}
.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 4px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 0.82rem; font-weight: 600; color: var(--texto); }
input, select, textarea {
  font-family: inherit;
  font-size: 0.92rem;
  padding: 9px 11px;
  border: 1px solid var(--borde);
  border-radius: 7px;
  background: #fff;
  color: var(--texto);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--verde-500); outline-offset: 0; border-color: var(--verde-500); }
textarea { resize: vertical; min-height: 70px; }
.form-actions { display: flex; gap: 10px; margin-top: 18px; }
.hint { font-size: 0.78rem; color: var(--texto-suave); }

/* ---------- Mensajes ---------- */
.messages { list-style: none; padding: 0; margin: 0 0 18px; }
.messages li {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 8px;
  font-size: 0.88rem;
}
.messages .success { background: #e1f3e6; color: var(--verde-800); }
.messages .error { background: #fbe4e0; color: var(--rojo); }
.messages .warning { background: #fdf1da; color: #7a5306; }

/* ---------- Tabs ficha animal ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--borde); margin-bottom: 18px; flex-wrap: wrap; }
.tabs a {
  padding: 9px 14px;
  color: var(--texto-suave);
  font-size: 0.88rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
}
.tabs a.active { color: var(--verde-800); border-bottom-color: var(--verde-700); }

.ficha-header { display: flex; justify-content: space-between; align-items: flex-start; flex-wrap: wrap; gap: 16px; margin-bottom: 18px; }
.ficha-header .caravana { font-size: 1.6rem; font-weight: 800; color: var(--verde-950); }
.ficha-header .meta { color: var(--texto-suave); font-size: 0.9rem; }
.kv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.kv-grid .kv { background: var(--verde-100); border-radius: 8px; padding: 10px 12px; }
.kv-grid .kv .k { font-size: 0.72rem; text-transform: uppercase; color: var(--verde-800); letter-spacing: 0.04em; }
.kv-grid .kv .v { font-size: 1rem; font-weight: 700; color: var(--verde-950); }

.actions-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }

@media (max-width: 820px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.2s ease; z-index: 999; }
  .sidebar.open { transform: translateX(0); }
  .content { margin-left: 0; }
  .topbar .menu-toggle { display: inline-block; }
}