/* ============================================================
   Recepción AI — Admin SPA
   Dark theme inspirado en Linear/Vercel.
   Las variables permiten swap de paleta (white-label, brand).
   ============================================================ */

:root {
  --bg:           #0d0d10;
  --surface:      #16171a;
  --surface-2:    #1d1f23;
  --surface-3:    #25272d;
  --border:       #26282d;
  --border-2:     #34373e;
  --text:         #e6e7eb;
  --text-2:       #9b9ea7;
  --text-3:       #62656d;
  --accent:       #5b6fff;
  --accent-2:     #4453e6;
  --accent-soft:  rgba(91, 111, 255, 0.12);
  --success:      #21c55d;
  --warning:      #f5a524;
  --danger:       #ef4444;
  --info:         #0ea5e9;
  --radius-sm:    6px;
  --radius:       8px;
  --radius-lg:    12px;
  --shadow:       0 1px 2px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3);
  --font:         -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", system-ui, sans-serif;
  --mono:         "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-2); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; font-size: inherit; }
hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

/* ===== Layout ===== */
.app { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
}
.sidebar-brand {
  font-weight: 600;
  font-size: 15px;
  padding: 8px 10px 16px;
  letter-spacing: .2px;
}
.sidebar-brand span { color: var(--accent); }
.sidebar-section {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .8px;
  color: var(--text-3);
  padding: 12px 10px 6px;
}
.sidebar a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-size: 13.5px;
  margin: 1px 0;
}
.sidebar a:hover { background: var(--surface-2); color: var(--text); }
.sidebar a.active {
  background: var(--accent-soft);
  color: var(--text);
  font-weight: 500;
}
.sidebar a .icon { width: 16px; opacity: .8; }
.sidebar-footer {
  margin-top: auto;
  padding: 12px 10px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-3);
}
.sidebar-footer .user-email { color: var(--text-2); }
.sidebar-footer button {
  margin-top: 8px;
  width: 100%;
  background: transparent;
  color: var(--text-2);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 12px;
}
.sidebar-footer button:hover { background: var(--surface-2); color: var(--text); }

.main { padding: 24px 32px 64px; max-width: 1400px; }
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.topbar h1 { margin: 0; font-size: 20px; font-weight: 600; }
.topbar .actions { display: flex; gap: 8px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-2);
  background: var(--surface-2);
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  transition: background .12s, border-color .12s;
}
.btn:hover { background: var(--surface-3); border-color: var(--text-3); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn-danger { color: var(--danger); border-color: var(--danger); background: transparent; }
.btn-danger:hover { background: rgba(239, 68, 68, 0.08); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ===== Cards / panels ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}
.card h2 { margin: 0 0 16px; font-size: 15px; font-weight: 600; color: var(--text); }
.card h3 { margin: 12px 0 8px; font-size: 13px; font-weight: 600; color: var(--text-2); text-transform: uppercase; letter-spacing: .5px; }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.kpi {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.kpi-label { font-size: 12px; color: var(--text-2); text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.kpi-value { font-size: 24px; font-weight: 600; }
.kpi-sub { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ===== Tables ===== */
.table { width: 100%; border-collapse: collapse; font-size: 13px; }
.table th, .table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.table th {
  font-weight: 500;
  color: var(--text-2);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.table tr:hover td { background: var(--surface-2); }
.table tbody tr { cursor: pointer; }
.table-empty { padding: 32px; text-align: center; color: var(--text-3); font-size: 13px; }

/* ===== Forms ===== */
.form-row { display: grid; gap: 6px; margin-bottom: 14px; }
.form-row label { font-size: 12px; color: var(--text-2); font-weight: 500; }
.form-row input, .form-row select, .form-row textarea {
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color .12s;
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--accent);
}
.form-row textarea { min-height: 80px; resize: vertical; font-family: inherit; }
.form-row .hint { font-size: 11px; color: var(--text-3); }
.form-row.error input { border-color: var(--danger); }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 500;
  background: var(--surface-3);
  color: var(--text-2);
}
.badge-success { background: rgba(33, 197, 93, 0.15); color: var(--success); }
.badge-warn    { background: rgba(245, 165, 36, 0.15); color: var(--warning); }
.badge-danger  { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.badge-info    { background: rgba(14, 165, 233, 0.15); color: var(--info); }
.badge-accent  { background: var(--accent-soft); color: var(--accent); }

/* ===== Modal ===== */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
  backdrop-filter: blur(2px);
}
.modal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 90%; max-width: 600px;
  max-height: 85vh; overflow-y: auto;
  padding: 24px;
  box-shadow: var(--shadow);
}
.modal-title { font-size: 16px; font-weight: 600; margin: 0 0 16px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--border); }

/* ===== Toast ===== */
.toast-host { position: fixed; bottom: 24px; right: 24px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast {
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--accent);
  padding: 10px 16px; border-radius: var(--radius);
  font-size: 13px; min-width: 240px; max-width: 360px;
  box-shadow: var(--shadow);
  animation: slideIn .2s ease-out;
}
.toast.error { border-left-color: var(--danger); }
.toast.success { border-left-color: var(--success); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: translateX(0); } }

/* ===== Login ===== */
.login-container {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
}
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px; width: 100%; max-width: 360px;
  box-shadow: var(--shadow);
}
.login-box h1 { margin: 0 0 8px; font-size: 20px; }
.login-box .subtitle { color: var(--text-2); font-size: 13px; margin-bottom: 24px; }
.login-error { color: var(--danger); font-size: 13px; margin-top: 12px; }

/* ===== Pagination ===== */
.pagination {
  display: flex; gap: 6px; align-items: center;
  margin-top: 12px; font-size: 12px; color: var(--text-2);
}
.pagination button {
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
  padding: 4px 10px; border-radius: var(--radius-sm); font-size: 12px;
}
.pagination button:disabled { opacity: .4; }

/* ===== Conversation view (WhatsApp-ish) ===== */
.chat { display: flex; flex-direction: column; gap: 8px; padding: 8px; }
.bubble {
  max-width: 70%; padding: 8px 12px; border-radius: 14px;
  font-size: 13.5px; line-height: 1.45;
}
.bubble.user {
  background: var(--surface-2); align-self: flex-start; border-bottom-left-radius: 4px;
}
.bubble.assistant {
  background: var(--accent-soft); color: var(--text); align-self: flex-end; border-bottom-right-radius: 4px;
}
.bubble.tool {
  align-self: stretch; max-width: 100%;
  background: transparent; border: 1px dashed var(--border-2);
  font-family: var(--mono); font-size: 11.5px; color: var(--text-2);
  padding: 8px 12px; border-radius: var(--radius-sm);
}
.bubble.tool details summary { cursor: pointer; color: var(--text-2); }
.bubble-time { font-size: 10px; color: var(--text-3); margin-top: 4px; }

/* ===== Kanban ===== */
.kanban { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.kanban-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 200px;
}
.kanban-col h3 { margin: 0 0 12px; font-size: 12px; }
.kanban-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px; margin-bottom: 8px;
  font-size: 13px; cursor: pointer;
}
.kanban-card:hover { border-color: var(--accent); }
.kanban-card .meta { font-size: 11px; color: var(--text-3); margin-top: 4px; }

/* ===== Misc ===== */
.flex { display: flex; }
.flex-1 { flex: 1; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.text-muted { color: var(--text-3); }
.text-center { text-align: center; }
.row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.between { display: flex; justify-content: space-between; align-items: center; }
.spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid var(--border-2); border-top-color: var(--accent);
  border-radius: 50%; animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }