:root {
  color-scheme: light;
  --bg: #f5f6f8;
  --panel: #ffffff;
  --border: #dfe3e8;
  --text: #1f2933;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --danger: #dc2626;
  --nuevo: #2563eb;
  --pendiente: #d97706;
  --atendido: #16a34a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar .brand { font-weight: 700; font-size: 1.05rem; }

.topbar nav a {
  margin-right: 1.2rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  padding-bottom: 4px;
}

.topbar nav a.active { border-bottom: 2px solid var(--accent); color: var(--accent); }

.topbar .session { display: flex; align-items: center; gap: 1rem; color: var(--muted); font-size: 0.9rem; }
.topbar .session a { color: var(--danger); text-decoration: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

h1 { font-size: 1.4rem; margin-bottom: 1rem; }

.filters { margin-bottom: 1rem; display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }
.filters a, .filters button {
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  text-decoration: none;
  font-size: 0.85rem;
  cursor: pointer;
}
.filters a.active { background: var(--accent); color: white; border-color: var(--accent); }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 0.65rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  vertical-align: top;
}

th { background: #f0f2f5; font-weight: 600; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; }

tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  color: white;
}
.badge-nuevo { background: var(--nuevo); }
.badge-pendiente_precio { background: var(--pendiente); }
.badge-atendido { background: var(--atendido); }

form.inline { display: inline-flex; gap: 0.4rem; align-items: center; }
input[type="text"], input[type="number"], input[type="password"] {
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
}
button, .btn {
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: white;
  cursor: pointer;
  font-size: 0.85rem;
  text-decoration: none;
}
button:hover, .btn:hover { background: var(--accent-hover); }
button.secondary { background: #e5e7eb; color: var(--text); }
button.secondary:hover { background: #d1d5db; }

.msg-cliente { color: var(--text); }
.msg-bot { color: var(--accent); }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  width: 320px;
}
.login-card h1 { text-align: center; }
.login-card .field { margin-bottom: 0.9rem; display: flex; flex-direction: column; gap: 0.3rem; }
.login-card input { width: 100%; padding: 0.55rem; }
.login-card button { width: 100%; padding: 0.6rem; margin-top: 0.4rem; }
.login-error { color: var(--danger); font-size: 0.85rem; margin-bottom: 0.8rem; text-align: center; }

.conversacion { display: flex; flex-direction: column; gap: 0.6rem; }
.bubble { max-width: 70%; padding: 0.5rem 0.8rem; border-radius: 10px; font-size: 0.9rem; }
.bubble.cliente { background: #e5e7eb; align-self: flex-start; }
.bubble.bot { background: #dbeafe; align-self: flex-end; }
.bubble .meta { font-size: 0.7rem; color: var(--muted); margin-top: 0.25rem; }

.empty { color: var(--muted); padding: 2rem; text-align: center; }