/*!
 * Bitto Design System
 * Fuente de verdad: design_handoff_bitto/Bitto Foundations.dc.html
 *                    design_handoff_bitto/Bitto Componentes.dc.html
 * Prefijo de clases: bt-
 * Tema: claro (por defecto) + oscuro ([data-theme="dark"] en <html>)
 */

/* ==========================================================================
   1. Tokens — tema claro
   ========================================================================== */
:root {
  /* Color — marca y superficies (Foundations · Color tema claro) */
  --bt-primary: #0E5A68;
  --bt-primary-hover: #0A454F;
  --bt-secondary: #475467;
  --bt-bg: #F7F8F9;
  --bt-surface: #FFFFFF;
  --bt-border: #E3E7E9;
  --bt-text: #10171C;
  --bt-text-muted: #63727C;

  /* Divisores internos (filas de tabla, separadores) — más claros que --bt-border */
  --bt-divider: #F0F2F3;
  /* Bordes de controles (checkbox/radio/dropzone sin foco) */
  --bt-control-border: #C6CFD3;
  /* Texto/relleno deshabilitado */
  --bt-disabled-bg: #F0F2F3;
  --bt-disabled-text: #9AA7B2;

  /* Semánticos (Foundations · Color tema claro) */
  --bt-success: #12805C;
  --bt-warning: #B7791F;
  --bt-danger: #C0392B;
  --bt-info: #2A6FB0;
  --bt-ai: #6E56CF;

  /* Tintes 8-10% de cada semántico, tal como aparecen en los mockups */
  --bt-primary-tint: rgba(14, 90, 104, 0.10);
  --bt-secondary-tint: rgba(71, 84, 103, 0.10);
  --bt-muted-tint: rgba(99, 114, 124, 0.10);
  --bt-success-tint: rgba(18, 128, 92, 0.10);
  --bt-warning-tint: rgba(183, 121, 31, 0.10);
  --bt-danger-tint: rgba(192, 57, 43, 0.10);
  --bt-info-tint: rgba(42, 111, 176, 0.10);
  --bt-ai-tint: rgba(110, 86, 207, 0.10);
  --bt-ai-border: rgba(110, 86, 207, 0.35);
  --bt-ai-bg: rgba(110, 86, 207, 0.05);
  --bt-danger-border: rgba(192, 57, 43, 0.25);

  /* Tipografía */
  --bt-font-ui: 'Instrument Sans', sans-serif;
  --bt-font-mono: 'IBM Plex Mono', monospace;

  /* Espaciado — escala base 4px */
  --bt-space-4: 4px;
  --bt-space-8: 8px;
  --bt-space-12: 12px;
  --bt-space-16: 16px;
  --bt-space-24: 24px;
  --bt-space-32: 32px;
  --bt-space-48: 48px;

  /* Radios */
  --bt-radius-sm: 6px;   /* controles pequeños */
  --bt-radius-md: 8px;   /* inputs, botones */
  --bt-radius-lg: 12px;  /* tarjetas, modal */
  --bt-radius-pill: 999px;

  /* Elevación (Foundations · Elevación) */
  --bt-shadow-sm: 0 1px 2px rgba(16, 23, 28, 0.05);   /* tarjetas */
  --bt-shadow-md: 0 4px 12px rgba(16, 23, 28, 0.08);  /* popover */
  --bt-shadow-lg: 0 12px 32px rgba(16, 23, 28, 0.14); /* modal */
  --bt-shadow-toast: 0 8px 24px rgba(16, 23, 28, 0.18);

  /* Scrim de modal (no especificado por hex exacto en el handoff; tinte
     neutro derivado de --bt-text para consistencia con el resto del sistema) */
  --bt-scrim: rgba(16, 23, 28, 0.45);

  /* Fila de tabla operativa */
  --bt-row-height: 44px;

  /* Texto sobre relleno sólido de --bt-primary (botón primario, pill/tab
     activo, logo). En claro #0E5A68 es lo bastante oscuro para texto blanco
     (~7.9:1). En oscuro el primario se aclara a #3D93A3 (ver más abajo) para
     que siga siendo legible como TEXTO/ícono sobre el fondo oscuro — pero
     eso mismo baja el contraste de un relleno sólido con texto blanco
     encima a ~3.55:1, insuficiente para AA en texto pequeño. El mockup dark
     (design_handoff_bitto/Bitto App Dark.dc.html: botón "+ Nuevo ticket",
     logo "b", pill "Todos · N") resuelve esto con texto OSCURO sobre ese
     mismo relleno — Task 14. */
  --bt-on-primary: #FFFFFF;
}

/* ==========================================================================
   1b. Tokens — tema oscuro (preparado)
   ========================================================================== */
[data-theme="dark"] {
  --bt-primary: #3D93A3;
  --bt-primary-hover: #5FAAB8;
  --bt-secondary: #9AA7B2;
  --bt-bg: #0C1214;
  --bt-surface: #131B1E;
  --bt-border: #24312F;
  --bt-text: #ECF1F2;
  --bt-text-muted: #8FA0A8;

  /* Ver nota en :root — el mockup dark usa texto oscuro (igual a --bt-bg)
     sobre el relleno sólido de --bt-primary para mantener AA. */
  --bt-on-primary: #0C1214;

  /* Sin valores duales dedicados en el handoff: se reutiliza --bt-border,
     el neutro más cercano ya definido para el tema oscuro. */
  --bt-divider: #24312F;
  --bt-control-border: #24312F;
  --bt-disabled-bg: #24312F;
  --bt-disabled-text: #8FA0A8;

  /* Los semánticos no tienen valores alternos en el handoff; se mantienen
     iguales (ya cumplen contraste AA sobre las superficies oscuras). */
  --bt-success: #12805C;
  --bt-warning: #B7791F;
  --bt-danger: #C0392B;
  --bt-info: #2A6FB0;
  --bt-ai: #6E56CF;

  --bt-primary-tint: rgba(61, 147, 163, 0.16);
  --bt-secondary-tint: rgba(154, 167, 178, 0.14);
  --bt-muted-tint: rgba(143, 160, 168, 0.14);
  --bt-success-tint: rgba(18, 128, 92, 0.18);
  --bt-warning-tint: rgba(183, 121, 31, 0.18);
  --bt-danger-tint: rgba(192, 57, 43, 0.18);
  --bt-info-tint: rgba(42, 111, 176, 0.18);
  --bt-ai-tint: rgba(110, 86, 207, 0.18);
  --bt-ai-border: rgba(110, 86, 207, 0.4);
  --bt-ai-bg: rgba(110, 86, 207, 0.1);
  --bt-danger-border: rgba(192, 57, 43, 0.35);

  --bt-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.28);
  --bt-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.32);
  --bt-shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.45);
  --bt-shadow-toast: 0 8px 24px rgba(0, 0, 0, 0.5);

  --bt-scrim: rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   2. Reset mínimo
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bt-bg);
  color: var(--bt-text);
  font-family: var(--bt-font-ui);
  -webkit-font-smoothing: antialiased;
  transition: background-color .15s ease, color .15s ease;
}
img, svg { display: block; max-width: 100%; }
button, input, select, textarea { font-family: inherit; color: inherit; }
button { cursor: pointer; }
a { color: var(--bt-primary); text-decoration: none; }
a:hover { color: var(--bt-primary-hover); text-decoration: underline; }
ul, ol { margin: 0; padding: 0; list-style: none; }

/* ==========================================================================
   3. Tipografía base (Foundations · Tipografía)
   ========================================================================== */
h1, h2, h3, h4, p { margin: 0; }
h1 { font-size: 32px; font-weight: 700; letter-spacing: -0.02em; } /* Display */
h2 { font-size: 24px; font-weight: 700; letter-spacing: -0.01em; } /* H1 */
h3 { font-size: 20px; font-weight: 700; } /* H2 */
h4 { font-size: 16px; font-weight: 600; } /* H3 */
p, body { font-size: 14px; line-height: 1.5; font-weight: 400; }
small { font-size: 13px; }

.bt-caption {
  font-size: 12px;
  font-weight: 600;
  color: var(--bt-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bt-mono {
  font-family: var(--bt-font-mono);
  font-size: 13px;
  font-weight: 500;
}

/* ==========================================================================
   4. Botones (Componentes · Botones y acciones)
   ========================================================================== */
.bt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--bt-font-ui);
  font-size: 13px;
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--bt-radius-md);
  padding: 10px 16px;
  cursor: pointer;
  transition: background-color .12s ease, border-color .12s ease, color .12s ease;
  white-space: nowrap;
}

.bt-btn--primary {
  background: var(--bt-primary);
  color: var(--bt-on-primary);
}
.bt-btn--primary:hover { background: var(--bt-primary-hover); }

.bt-btn--secondary {
  background: var(--bt-surface);
  color: var(--bt-text);
  border: 1px solid var(--bt-border);
}
.bt-btn--secondary:hover { background: var(--bt-bg); }

.bt-btn--ghost {
  background: transparent;
  color: var(--bt-primary);
  padding: 10px 12px;
}
.bt-btn--ghost:hover { background: var(--bt-primary-tint); }

.bt-btn--danger {
  background: var(--bt-danger-tint);
  color: var(--bt-danger);
  border: 1px solid var(--bt-danger-border);
}
.bt-btn--danger:hover { background: rgba(192, 57, 43, 0.14); }

.bt-btn--ai {
  background: var(--bt-ai);
  color: #FFFFFF;
  border-radius: 7px;
  padding: 7px 12px;
  font-size: 12px;
}
.bt-btn--ai:hover { background: #5C42B8; }

.bt-btn--sm {
  font-size: 12px;
  border-radius: 7px;
  padding: 6px 12px;
}

.bt-btn:disabled,
.bt-btn[disabled] {
  background: var(--bt-disabled-bg);
  color: var(--bt-disabled-text);
  border-color: transparent;
  cursor: not-allowed;
}
.bt-btn:disabled:hover,
.bt-btn[disabled]:hover { background: var(--bt-disabled-bg); }

/* ==========================================================================
   5. Formularios (Componentes · Formularios)
   ========================================================================== */
.bt-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  color: var(--bt-text);
  margin-bottom: 6px;
}
.bt-label__required { color: var(--bt-danger); }

.bt-input,
.bt-textarea {
  width: 100%;
  font-family: var(--bt-font-ui);
  font-size: 14px;
  padding: 9px 12px;
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-md);
  color: var(--bt-text);
  background: var(--bt-surface);
  transition: border-color .12s ease, outline-color .12s ease;
}
.bt-input::placeholder,
.bt-textarea::placeholder { color: var(--bt-disabled-text); }

.bt-input:focus,
.bt-textarea:focus,
.bt-select:focus {
  outline: 2px solid var(--bt-primary-tint);
  border-color: var(--bt-primary);
}
.bt-input:focus-visible,
.bt-textarea:focus-visible,
.bt-select:focus-visible { outline-color: var(--bt-primary-tint); }

.bt-textarea {
  min-height: 96px;
  resize: vertical;
  line-height: 1.5;
}

.bt-input.is-invalid,
.bt-textarea.is-invalid,
.bt-select.is-invalid {
  border-color: var(--bt-danger);
}

.bt-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  font-family: var(--bt-font-ui);
  font-size: 14px;
  padding: 9px 34px 9px 12px;
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-md);
  color: var(--bt-text);
  background-color: var(--bt-surface);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'><path d='M3 4.5L6 7.5L9 4.5' stroke='%2363727C' stroke-width='1.5' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  cursor: pointer;
}

[data-theme="dark"] .bt-select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='none'><path d='M3 4.5L6 7.5L9 4.5' stroke='%238FA0A8' stroke-width='1.5' stroke-linecap='round'/></svg>");
}

.bt-field-error {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--bt-danger);
  margin-top: 6px;
}

.bt-field-hint {
  font-size: 12px;
  color: var(--bt-text-muted);
  margin-top: 6px;
}

/* Checkbox / radio / switch — soporte adicional para formularios del panel */
.bt-checkbox,
.bt-radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--bt-text);
  cursor: pointer;
}
.bt-checkbox input,
.bt-radio input { position: absolute; opacity: 0; width: 16px; height: 16px; margin: 0; cursor: pointer; }
.bt-checkbox__box,
.bt-radio__box {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border: 1.5px solid var(--bt-control-border);
  background: var(--bt-surface);
  box-sizing: border-box;
}
.bt-checkbox__box { border-radius: 4px; display: inline-flex; align-items: center; justify-content: center; }
.bt-radio__box { border-radius: var(--bt-radius-pill); }
.bt-checkbox input:checked ~ .bt-checkbox__box {
  background: var(--bt-primary);
  border-color: var(--bt-primary);
}
.bt-checkbox input:checked ~ .bt-checkbox__box::after {
  content: '';
  width: 10px;
  height: 10px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10' fill='none'><path d='M2 5L4.2 7.2L8 3' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
}
.bt-radio input:checked ~ .bt-radio__box {
  border: 5px solid var(--bt-primary);
}

.bt-switch { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; color: var(--bt-text); }
.bt-switch input { position: absolute; opacity: 0; width: 34px; height: 19px; margin: 0; cursor: pointer; }
.bt-switch__track {
  width: 34px;
  height: 19px;
  border-radius: var(--bt-radius-pill);
  background: var(--bt-control-border);
  position: relative;
  display: inline-block;
  flex-shrink: 0;
  transition: background-color .12s ease;
}
.bt-switch__track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 15px; height: 15px;
  border-radius: var(--bt-radius-pill);
  background: #FFFFFF;
  transition: left .12s ease;
}
.bt-switch input:checked ~ .bt-switch__track { background: var(--bt-primary); }
.bt-switch input:checked ~ .bt-switch__track::after { left: 17px; }

.bt-dropzone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1.5px dashed var(--bt-control-border);
  border-radius: var(--bt-radius-md);
  padding: 14px;
  background: var(--bt-bg);
  font-size: 13px;
  color: var(--bt-text-muted);
  cursor: pointer;
}
.bt-dropzone strong { color: var(--bt-primary); font-weight: 600; }

/* ==========================================================================
   6. Badges (Foundations · Estados semánticos + Prioridad)
   ========================================================================== */
.bt-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  border-radius: var(--bt-radius-pill);
  padding: 4px 12px;
  white-space: nowrap;
}
.bt-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: var(--bt-radius-pill);
  background: currentColor;
  flex-shrink: 0;
}
.bt-badge--no-dot::before { content: none; }

.bt-badge--new       { color: var(--bt-info);    background: var(--bt-info-tint); }
.bt-badge--progress  { color: var(--bt-primary); background: var(--bt-primary-tint); }
.bt-badge--resolved  { color: var(--bt-success); background: var(--bt-success-tint); }
.bt-badge--closed    { color: var(--bt-text-muted); background: var(--bt-muted-tint); }

.bt-badge--low        { color: var(--bt-text-muted); background: var(--bt-muted-tint); }
.bt-badge--medium     { color: var(--bt-secondary); background: var(--bt-secondary-tint); }
.bt-badge--high       { color: var(--bt-warning); background: var(--bt-warning-tint); }

.bt-badge--success { color: var(--bt-success); background: var(--bt-success-tint); }
.bt-badge--warning  { color: var(--bt-warning); background: var(--bt-warning-tint); }
.bt-badge--danger   { color: var(--bt-danger); background: var(--bt-danger-tint); }
.bt-badge--info     { color: var(--bt-info); background: var(--bt-info-tint); }
.bt-badge--ai       { color: var(--bt-ai); background: var(--bt-ai-tint); }

/* ==========================================================================
   7. Tarjetas
   ========================================================================== */
.bt-card {
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-lg);
  padding: var(--bt-space-24);
  box-shadow: var(--bt-shadow-sm);
}
.bt-card--sm { padding: var(--bt-space-16); border-radius: var(--bt-radius-md); }

/* Bloque de sugerencia de IA (Foundations · Tratamiento de IA) */
.bt-ai-block {
  border: 1px solid var(--bt-ai-border);
  background: var(--bt-ai-bg);
  border-radius: 10px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.bt-ai-block__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--bt-ai);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ==========================================================================
   8. Tabla operativa (Componentes · Operación) — filas de 44px
   ========================================================================== */
.bt-table {
  border: 1px solid var(--bt-border);
  border-radius: 10px;
  overflow: hidden;
  width: 100%;
  background: var(--bt-surface);
}
.bt-table__head {
  display: grid;
  background: var(--bt-bg);
  border-bottom: 1px solid var(--bt-border);
  padding: 0 16px;
  height: 40px;
  align-items: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--bt-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.bt-table__row {
  display: grid;
  padding: 0 16px;
  height: var(--bt-row-height);
  align-items: center;
  font-size: 13px;
  border-bottom: 1px solid var(--bt-divider);
  background: var(--bt-surface);
  cursor: pointer;
}
.bt-table__row:last-child { border-bottom: none; }
.bt-table__row:hover { background: var(--bt-bg); }
.bt-table__row--danger { background: var(--bt-danger-tint); }
.bt-table__cell {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  padding-right: 12px;
}

/* ==========================================================================
   9. Modal (con scrim)
   ========================================================================== */
.bt-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: var(--bt-space-24);
}
.bt-modal.is-open { display: flex; }
.bt-modal__scrim {
  position: fixed;
  inset: 0;
  background: var(--bt-scrim);
}
.bt-modal__dialog {
  position: relative;
  width: 440px;
  max-width: 100%;
  max-height: calc(100vh - 48px);
  overflow: auto;
  background: var(--bt-surface);
  border-radius: var(--bt-radius-lg);
  box-shadow: var(--bt-shadow-lg);
  padding: var(--bt-space-24);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bt-modal__header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.bt-modal__title { font-size: 15px; font-weight: 700; color: var(--bt-text); }
.bt-modal__subtitle { font-size: 12px; color: var(--bt-text-muted); }
.bt-modal__close {
  background: none;
  border: none;
  padding: 0;
  font-size: 16px;
  line-height: 1;
  color: var(--bt-text-muted);
  cursor: pointer;
}
.bt-modal__close:hover { color: var(--bt-text); }
/* body: agrupa los campos entre header y footer (primer uso real de
   .bt-modal en la app — ver views/settings/payments.php y projects.php). */
.bt-modal__body { display: flex; flex-direction: column; gap: 14px; }
.bt-modal__field { display: flex; flex-direction: column; gap: 6px; }
.bt-modal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.bt-modal__footer-actions { display: flex; gap: 8px; }
.bt-modal__footer-hint {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11.5px;
  color: var(--bt-text-muted);
}

/* ==========================================================================
   10. Toast
   ========================================================================== */
.bt-toast-region {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: 360px;
}
.bt-toast {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #10171C;
  color: #FFFFFF;
  border-radius: 10px;
  padding: 12px 14px;
  box-shadow: var(--bt-shadow-toast);
  font-size: 13px;
  font-weight: 600;
}
.bt-toast__action {
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
  margin-left: auto;
  cursor: pointer;
}
.bt-toast--success::before { content: ''; width: 16px; height: 16px; border-radius: 999px; background: var(--bt-success); flex-shrink: 0; }
.bt-toast--danger::before  { content: ''; width: 16px; height: 16px; border-radius: 999px; background: var(--bt-danger); flex-shrink: 0; }
.bt-toast--info::before    { content: ''; width: 16px; height: 16px; border-radius: 999px; background: var(--bt-info); flex-shrink: 0; }

/* ==========================================================================
   11. Avatar
   ========================================================================== */
.bt-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--bt-radius-pill);
  background: var(--bt-secondary);
  color: #FFFFFF;
  font-size: 11px;
  font-weight: 700;
}
.bt-avatar--sm { width: 22px; height: 22px; font-size: 10px; }
.bt-avatar--lg { width: 56px; height: 56px; font-size: 19px; }
.bt-avatar--primary { background: var(--bt-primary); }
.bt-avatar--info { background: var(--bt-info); }
.bt-avatar--warning { background: var(--bt-warning); }
.bt-avatar--muted { background: var(--bt-text-muted); }

/* Task 14 — --bt-secondary/--bt-text-muted se aclaran en oscuro a propósito
   para servir como TEXTO legible sobre fondos oscuros (Foundations dark:
   #9AA7B2/#8FA0A8), pero ese mismo valor usado como RELLENO sólido del
   avatar por defecto (topbar del panel, ver views/layouts/panel.php) y de
   --bt-avatar--muted ("Sin asignar", ver views/ticket/index.php) deja el
   texto blanco encima en ~2.5:1 de contraste — falla AA. El mockup dark
   (App Dark.dc.html, avatar "—" de fila sin asignar) usa un gris más oscuro
   y fijo para ese relleno neutro; se replica ese valor solo en oscuro. */
[data-theme="dark"] .bt-avatar { background: #5C6B73; }
[data-theme="dark"] .bt-avatar--muted { background: #5C6B73; }

/* ==========================================================================
   12. Pill (etiqueta neutra, ej. "Lote 1 · Foundations")
   ========================================================================== */
.bt-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--bt-text-muted);
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-pill);
  padding: 3px 10px;
}

/* ==========================================================================
   13. Banner de vista previa (módulos sin backend — global-constraints)
   ========================================================================== */
.bt-preview-banner {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  border: 1px solid var(--bt-info-tint);
  border-color: rgba(42, 111, 176, 0.3);
  background: var(--bt-info-tint);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--bt-info);
}

/* ==========================================================================
   14. Dropdown (soporte para Bitto.dropdown por delegación)
   ========================================================================== */
.bt-dropdown { position: relative; display: inline-block; }
.bt-dropdown__menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 200px;
  background: var(--bt-surface);
  border: 1px solid var(--bt-border);
  border-radius: var(--bt-radius-md);
  box-shadow: var(--bt-shadow-md);
  padding: 6px;
  z-index: 200;
}
.bt-dropdown.is-open .bt-dropdown__menu { display: block; }
.bt-dropdown__item {
  display: block;
  width: 100%;
  text-align: left;
  font-size: 13px;
  color: var(--bt-text);
  background: none;
  border: none;
  border-radius: var(--bt-radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}
.bt-dropdown__item:hover { background: var(--bt-bg); }

/* ==========================================================================
   15. Utilidades de layout — stack (columna con gap) y row
   ========================================================================== */
.bt-stack-4  { display: flex; flex-direction: column; gap: 4px; }
.bt-stack-8  { display: flex; flex-direction: column; gap: 8px; }
.bt-stack-12 { display: flex; flex-direction: column; gap: 12px; }
.bt-stack-16 { display: flex; flex-direction: column; gap: 16px; }
.bt-stack-24 { display: flex; flex-direction: column; gap: 24px; }
.bt-stack-32 { display: flex; flex-direction: column; gap: 32px; }
.bt-stack-48 { display: flex; flex-direction: column; gap: 48px; }

.bt-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

/* ==========================================================================
   16. Media queries base
   ========================================================================== */
@media (max-width: 768px) {
  .bt-table__head { display: none; }
  .bt-table__row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: auto;
    padding: 12px 16px;
    gap: 4px;
  }
  .bt-modal__dialog { width: 100%; }
}

@media (max-width: 390px) {
  .bt-card { padding: var(--bt-space-16); }
  .bt-btn { padding: 10px 14px; }
  .bt-modal { padding: var(--bt-space-12); }
}
