/**
 * XUI Design — tokens y componentes base (mesa de ayuda).
 * Tipografía: Outfit + Literata (Google Fonts)
 */
@import url('https://fonts.googleapis.com/css2?family=Literata:ital,opsz,wght@0,7..72,400;0,7..72,600;1,7..72,400&family=Outfit:wght@400;500;600;700&display=swap');

:root {
  --xui-bg: #f4f1ea;
  --xui-surface: #fffdf8;
  --xui-ink: #1a1c1e;
  --xui-muted: #5c5f66;
  --xui-line: #e3ddd2;
  --xui-accent: #0d9488;
  --xui-accent-2: #c2410c;
  --xui-danger: #b91c1c;
  --xui-sidebar: #0f172a;
  --xui-sidebar-ink: #e2e8f0;
  --xui-radius: 12px;
  --xui-shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
  --xui-font-ui: "Outfit", system-ui, sans-serif;
  --xui-font-body: "Literata", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }

body.xui {
  margin: 0;
  min-height: 100vh;
  font-family: var(--xui-font-body);
  color: var(--xui-ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(13, 148, 136, 0.12), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(194, 65, 12, 0.08), transparent 50%),
    var(--xui-bg);
}

.xui-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

.xui-sidebar {
  background: linear-gradient(180deg, #0b1224 0%, var(--xui-sidebar) 40%, #0b1224 100%);
  color: var(--xui-sidebar-ink);
  padding: 1.5rem 1.25rem;
  font-family: var(--xui-font-ui);
  border-right: 1px solid rgba(255,255,255,0.06);
}

.xui-brand {
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  opacity: 0.85;
  margin-bottom: 1.75rem;
}

.xui-nav a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  color: inherit;
  text-decoration: none;
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  transition: background 0.15s ease, transform 0.15s ease;
}

.xui-nav a:hover {
  background: rgba(255,255,255,0.06);
  transform: translateX(2px);
}

.xui-nav a.is-active {
  background: rgba(13, 148, 136, 0.22);
  color: #ecfdf5;
}

.xui-main {
  padding: 2rem 2.25rem 3rem;
}

.xui-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
  font-family: var(--xui-font-ui);
}

.xui-h1 {
  font-family: var(--xui-font-ui);
  font-size: 1.65rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.02em;
}

.xui-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.xui-card {
  background: var(--xui-surface);
  border: 1px solid var(--xui-line);
  border-radius: var(--xui-radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--xui-shadow);
}

.xui-card h3 {
  margin: 0 0 0.35rem;
  font-family: var(--xui-font-ui);
  font-size: 0.95rem;
  font-weight: 600;
}

.xui-stat {
  font-family: var(--xui-font-ui);
  font-size: 2rem;
  font-weight: 700;
  color: var(--xui-accent);
}

.xui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: none;
  border-radius: 10px;
  padding: 0.55rem 1rem;
  font-family: var(--xui-font-ui);
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  font-size: 0.9rem;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.xui-btn:active { transform: translateY(1px); }

.xui-btn--primary {
  background: linear-gradient(135deg, #0f766e, var(--xui-accent));
  color: #fff;
  box-shadow: 0 10px 24px rgba(13, 148, 136, 0.35);
}

.xui-btn--ghost {
  background: transparent;
  color: var(--xui-ink);
  border: 1px solid var(--xui-line);
}

.xui-btn--danger {
  background: #fee2e2;
  color: var(--xui-danger);
  border: 1px solid #fecaca;
}

.xui-table-wrap {
  overflow: auto;
  border-radius: var(--xui-radius);
  border: 1px solid var(--xui-line);
  background: var(--xui-surface);
  box-shadow: var(--xui-shadow);
}

table.xui-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--xui-font-ui);
  font-size: 0.9rem;
}

.xui-table th, .xui-table td {
  padding: 0.75rem 0.9rem;
  text-align: left;
  border-bottom: 1px solid var(--xui-line);
}

.xui-table th {
  background: #faf7f0;
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--xui-muted);
}

.xui-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--xui-font-ui);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.xui-badge--abierto { background: #dbeafe; color: #1e3a8a; }
.xui-badge--pendiente { background: #fef3c7; color: #92400e; }
.xui-badge--en_proceso { background: #e0e7ff; color: #312e81; }
.xui-badge--resuelto { background: #dcfce7; color: #14532d; }
.xui-badge--cerrado { background: #f3f4f6; color: #374151; }
.xui-badge--critica { background: #fee2e2; color: #991b1b; }

.xui-thread {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 0.25rem 0;
}

.xui-msg-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  width: 100%;
}

.xui-msg-row--left { justify-content: flex-start; }
.xui-msg-row--right {
  justify-content: flex-end;
  flex-direction: row-reverse;
}
.xui-msg-row--center { justify-content: center; }

.xui-avatar {
  width: 38px;
  height: 38px;
  flex: 0 0 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--xui-font-ui);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: #fff;
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.12);
}

.xui-avatar--cliente { background: linear-gradient(135deg, #0f766e, var(--xui-accent)); }
.xui-avatar--operador { background: linear-gradient(135deg, #c2410c, #ea580c); }
.xui-avatar--sistema { background: linear-gradient(135deg, #475569, #1e293b); }

.xui-msg {
  position: relative;
  max-width: min(640px, 78%);
  border-radius: 14px;
  padding: 0.85rem 1rem 0.95rem;
  border: 1px solid var(--xui-line);
  background: #fff;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

.xui-msg-row--right .xui-msg {
  background: #f0fdfa;
  border-color: #99f6e4;
}

.xui-msg-row--center .xui-msg {
  max-width: 520px;
  background: #f8fafc;
  border-color: #e2e8f0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--xui-muted);
}

.xui-msg--internal {
  border-color: #fde68a !important;
  background: #fffbeb !important;
}

.xui-msg-head {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
  align-items: baseline;
  font-family: var(--xui-font-ui);
  font-size: 0.78rem;
  color: var(--xui-muted);
  margin-bottom: 0.35rem;
}

.xui-msg-author {
  font-weight: 600;
  color: var(--xui-ink);
  letter-spacing: 0.01em;
}

.xui-msg-tag {
  font-family: var(--xui-font-ui);
  display: inline-block;
  padding: 0.1rem 0.45rem;
  margin-left: 0.4rem;
  border-radius: 999px;
  font-size: 0.66rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: #fef3c7;
  color: #92400e;
}

.xui-msg-tag--cliente { background: #ccfbf1; color: #115e59; }
.xui-msg-tag--operador { background: #ffedd5; color: #9a3412; }
.xui-msg-tag--sistema { background: #e2e8f0; color: #1e293b; }

.xui-msg-body {
  white-space: pre-wrap;
  word-wrap: break-word;
  line-height: 1.55;
  font-family: var(--xui-font-body);
  font-size: 0.97rem;
}

.xui-msg-empty {
  font-style: italic;
  color: var(--xui-muted);
}

@media (max-width: 720px) {
  .xui-msg { max-width: 100%; }
  .xui-msg-row--right { flex-direction: row; }
}

.xui-form label {
  display: block;
  font-family: var(--xui-font-ui);
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.xui-input, .xui-textarea, .xui-select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--xui-line);
  padding: 0.55rem 0.65rem;
  font: inherit;
  background: #fff;
}

.xui-textarea { min-height: 120px; resize: vertical; }

.xui-modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
}

.xui-modal-backdrop.is-open { display: flex; }

.xui-modal {
  width: min(520px, 92vw);
  background: var(--xui-surface);
  border-radius: 16px;
  padding: 1.25rem 1.35rem;
  border: 1px solid var(--xui-line);
  box-shadow: var(--xui-shadow);
}

@media (max-width: 960px) {
  .xui-shell { grid-template-columns: 1fr; }
  .xui-sidebar { position: sticky; top: 0; z-index: 10; }
}

/* Auth center layout */
body.xui-guest {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background:
    radial-gradient(800px 500px at 20% 10%, rgba(13, 148, 136, 0.18), transparent 60%),
    radial-gradient(700px 400px at 90% 20%, rgba(194, 65, 12, 0.12), transparent 55%),
    var(--xui-bg);
}

.xui-auth-card {
  width: min(420px, 100%);
  background: var(--xui-surface);
  border-radius: 18px;
  padding: 2rem 2rem 1.75rem;
  border: 1px solid var(--xui-line);
  box-shadow: var(--xui-shadow);
}