/*
 * Renovación Visual V2 Mobile/UX
 * Extiende V1 sin modificar base de datos ni lógica PHP.
 */
:root {
  --v2-primary: #1d4ed8;
  --v2-primary-2: #0891b2;
  --v2-accent: #7c3aed;
  --v2-ink: #0f172a;
  --v2-muted: #64748b;
  --v2-surface: rgba(255, 255, 255, .90);
  --v2-line: rgba(37, 99, 235, .14);
  --v2-success: #059669;
  --v2-warning: #d97706;
  --v2-danger: #dc2626;
  --v2-radius: 22px;
  --v2-radius-lg: 30px;
  --v2-touch: 48px;
  --v2-bottom-nav-h: 78px;
  --v2-shadow: 0 20px 55px rgba(15, 23, 42, .12);
  --v2-shadow-soft: 0 12px 32px rgba(15, 23, 42, .08);
}

html.visual-v2-ready { scroll-padding-top: 92px; }
body.visual-v2,
body.visual-v2-auth,
body.visual-v2-public,
body.visual-v2-landing { overflow-x: hidden; }

/* Header y navegación mejorados */
.visual-v2 .premium-topbar {
  position: sticky;
  top: 0;
  z-index: 1038;
}
.visual-v2 .premium-topbar::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(37,99,235,.18), transparent);
}
.visual-v2 .premium-sidebar .nav-sidebar .nav-link p {
  white-space: normal;
  line-height: 1.2;
}
.visual-v2 .premium-sidebar .nav-sidebar .nav-link {
  min-height: var(--v2-touch);
}
.visual-v2 .premium-nav-section {
  display: flex;
  align-items: center;
  gap: .45rem;
}
.visual-v2 .premium-nav-section::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #38bdf8;
  box-shadow: 0 0 0 5px rgba(56, 189, 248, .12);
}

/* Toolbar/página */
.visual-v2 .content-header .row {
  row-gap: .75rem;
}
.visual-v2 .premium-page-actions {
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: .55rem;
}
.visual-v2 .premium-page-actions .btn,
.visual-v2 .card-header .btn,
.visual-v2 .table .btn,
.visual-v2 .modal-footer .btn {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
}
.visual-v2 .btn-sm {
  min-height: 36px;
  border-radius: 13px !important;
}
.visual-v2 .dropdown-menu {
  border: 1px solid var(--v2-line);
  border-radius: 18px;
  box-shadow: var(--v2-shadow-soft);
  overflow: hidden;
}
.visual-v2 .dropdown-item {
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: .55rem;
  font-weight: 700;
}

/* Cards más legibles */
.visual-v2 .card,
.visual-v2 .premium-card,
.visual-v2 .premium-surface,
.visual-v2 .info-box,
.visual-v2 .small-box {
  isolation: isolate;
}
.visual-v2 .card-header,
.visual-v2 .premium-section-header {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.visual-v2 .card-title {
  line-height: 1.16;
}
.visual-v2 .alert {
  border: 0;
  border-radius: 20px;
  box-shadow: 0 12px 28px rgba(15,23,42,.07);
  font-weight: 700;
}

/* Formularios táctiles */
.visual-v2 .form-group {
  position: relative;
}
.visual-v2 .form-control,
.visual-v2 .custom-select,
.visual-v2-auth .form-control,
.visual-v2-public .form-control,
.visual-v2-public select.form-control {
  min-height: var(--v2-touch);
}
.visual-v2 textarea.form-control,
.visual-v2-public textarea.form-control { min-height: 116px; }
.visual-v2 .custom-control-label,
.visual-v2-public .custom-control-label,
.visual-v2-auth .custom-control-label {
  cursor: pointer;
  line-height: 1.45;
}
.visual-v2 .custom-control-input,
.visual-v2-public .custom-control-input,
.visual-v2-auth .custom-control-input {
  transform: scale(1.12);
}
.visual-v2 input[type="file"].form-control,
.visual-v2-public input[type="file"].form-control {
  padding-top: .72rem;
  min-height: 58px;
}
.visual-v2 .input-group-lg > .form-control,
.visual-v2 .input-group-lg > .input-group-append > .input-group-text,
.visual-v2-auth .input-group-lg > .form-control,
.visual-v2-auth .input-group-lg > .input-group-append > .input-group-text {
  min-height: 58px;
}
.visual-v2 .form-control.is-invalid,
.visual-v2-public .form-control.is-invalid,
.visual-v2-auth .form-control.is-invalid {
  border-color: rgba(220,38,38,.55) !important;
  box-shadow: 0 0 0 .25rem rgba(220,38,38,.10) !important;
}
.visual-v2 .v2-field-note {
  margin-top: .35rem;
  color: var(--v2-muted);
  font-size: .82rem;
  font-weight: 700;
}

/* Tablas y DataTables */
.visual-v2 .table-responsive,
.visual-v2 .premium-table-wrap,
.visual-v2 .dataTables_wrapper {
  border-radius: 24px;
}
.visual-v2 .premium-datatable-wrapper .premium-dt-toolbar {
  padding: .9rem .85rem .35rem;
  border-radius: 22px 22px 0 0;
  background: linear-gradient(180deg, rgba(255,255,255,.72), transparent);
}
.visual-v2 .dataTables_filter,
.visual-v2 .dataTables_length { text-align: left !important; }
.visual-v2 .premium-dt-search {
  min-width: min(100%, 320px);
  padding-left: 2.35rem !important;
  background-image: linear-gradient(transparent, transparent), url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='m21 21-4.35-4.35M10.5 18a7.5 7.5 0 1 1 0-15 7.5 7.5 0 0 1 0 15Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: .82rem center;
}
.visual-v2 table.visual-v1-responsive-table tbody td[data-label="Acciones"],
.visual-v2 table.visual-v1-responsive-table tbody td:last-child {
  white-space: normal;
}

/* Modales */
.visual-v2 .modal-content {
  border: 1px solid rgba(37,99,235,.13);
  border-radius: 26px;
  box-shadow: 0 30px 90px rgba(15,23,42,.24);
  overflow: hidden;
}
.visual-v2 .modal-header,
.visual-v2 .modal-footer {
  border-color: rgba(37,99,235,.10);
}
.visual-v2 .modal-header {
  background: linear-gradient(135deg, rgba(37,99,235,.08), rgba(6,182,212,.06));
}
.visual-v2 .modal-title {
  font-weight: 900;
  letter-spacing: -.025em;
}

/* Dock móvil */
.v2-mobile-dock {
  display: none;
}
.v2-mobile-dock a {
  text-decoration: none !important;
}
.v2-mobile-dock-item {
  min-width: 0;
  height: 58px;
  border-radius: 20px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  color: #64748b;
  font-size: .70rem;
  font-weight: 900;
  letter-spacing: -.01em;
  border: 1px solid transparent;
}
.v2-mobile-dock-item i {
  font-size: 1.03rem;
}
.v2-mobile-dock-item.is-active,
.v2-mobile-dock-item:hover {
  color: #fff;
  background: linear-gradient(135deg, var(--v2-primary), var(--v2-primary-2));
  box-shadow: 0 14px 30px rgba(37,99,235,.22);
}
.v2-mobile-dock-item.is-danger { color: #b91c1c; }
.v2-mobile-dock-item.is-danger:hover { color: #fff; background: linear-gradient(135deg, #dc2626, #f97316); }

/* Login V2 */
.visual-v2-auth .login-v1-shell {
  max-width: 1180px;
}
.visual-v2-auth .login-clean-card {
  position: relative;
  overflow: hidden;
}
.visual-v2-auth .login-clean-card::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 7px;
  background: linear-gradient(90deg, var(--v2-primary), var(--v2-primary-2), var(--v2-accent));
}
.visual-v2-auth .login-v1-brand-panel {
  position: relative;
}
.visual-v2-auth .login-v1-brand-panel::after {
  content: '';
  position: absolute;
  right: -64px;
  bottom: -64px;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  border: 34px solid rgba(255,255,255,.08);
}
.visual-v2-auth .login-v1-points {
  grid-template-columns: 1fr;
}
.visual-v2-auth .login-v1-point {
  backdrop-filter: blur(16px);
}

/* Público V2 */
.visual-v2-public .public-survey-shell {
  max-width: 1220px;
}
.visual-v2-public .public-survey-hero-pills span,
.visual-v2-landing .chip {
  min-height: 38px;
  display: inline-flex;
  align-items: center;
}
.visual-v2-public .premium-form-steps {
  position: sticky;
  top: 84px;
  z-index: 20;
  padding: .65rem;
  border: 1px solid rgba(37,99,235,.10);
  border-radius: 24px;
  background: rgba(255,255,255,.76);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 36px rgba(15,23,42,.08);
}
.visual-v2-public .survey-step-footer {
  position: sticky;
  bottom: 12px;
  z-index: 15;
  padding: .65rem;
  border: 1px solid rgba(37,99,235,.10);
  border-radius: 22px;
  background: rgba(255,255,255,.82);
  backdrop-filter: blur(18px);
  box-shadow: var(--v2-shadow-soft);
}
.visual-v2-public .public-mobile-stepbar {
  position: sticky;
  top: 10px;
  z-index: 24;
  padding: .85rem;
  border-radius: 20px;
  background: rgba(255,255,255,.84);
  border: 1px solid rgba(37,99,235,.12);
  box-shadow: var(--v2-shadow-soft);
  backdrop-filter: blur(16px);
}
.visual-v2-public .progress,
.visual-v2-auth .login-preloader-progress,
.visual-v2 .module-preloader-progress {
  border-radius: 999px;
  overflow: hidden;
}

/* Estados vacíos/autogenerados */
.v2-empty-state {
  padding: 2rem 1.25rem;
  text-align: center;
  border: 1px dashed rgba(37,99,235,.24);
  border-radius: 24px;
  background: rgba(255,255,255,.62);
  color: var(--v2-muted);
}
.v2-empty-state i {
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: .7rem;
  border-radius: 22px;
  color: #1d4ed8;
  background: rgba(37,99,235,.10);
}

/* Dark mode */
body.v1-dark.visual-v2 .v2-mobile-dock,
body.v1-dark .v2-mobile-dock {
  background: rgba(15,23,42,.84);
  border-color: rgba(226,232,240,.12);
}
body.v1-dark.visual-v2 .premium-datatable-wrapper .premium-dt-toolbar,
body.v1-dark.visual-v2-public .premium-form-steps,
body.v1-dark.visual-v2-public .survey-step-footer,
body.v1-dark.visual-v2-public .public-mobile-stepbar,
body.v1-dark .v2-empty-state {
  background: rgba(15,23,42,.78);
  border-color: rgba(226,232,240,.12);
}
body.v1-dark.visual-v2 .modal-content {
  background: #0f172a;
  color: #e5e7eb;
  border-color: rgba(226,232,240,.12);
}
body.v1-dark.visual-v2 .modal-header {
  background: linear-gradient(135deg, rgba(37,99,235,.16), rgba(6,182,212,.10));
}
body.v1-dark .v2-mobile-dock-item { color: #cbd5e1; }

/* Responsive profundo */
@media (max-width: 991.98px) {
  .visual-v2 .premium-topbar-chip { display: none !important; }
  .visual-v2 .premium-page-actions { justify-content: flex-start; }
  .visual-v2 .modal-dialog { margin: .75rem; }
}
@media (max-width: 767.98px) {
  body.visual-v2 { padding-bottom: calc(var(--v2-bottom-nav-h) + env(safe-area-inset-bottom)); }
  .visual-v2 .content-wrapper { padding-bottom: calc(var(--v2-bottom-nav-h) + 1.4rem) !important; }
  .visual-v2 .main-footer { display: none; }
  .v2-mobile-dock {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: calc(10px + env(safe-area-inset-bottom));
    height: var(--v2-bottom-nav-h);
    z-index: 1048;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(58px, 1fr));
    gap: 6px;
    padding: 9px;
    border: 1px solid rgba(37,99,235,.15);
    border-radius: 26px;
    background: rgba(255,255,255,.86);
    box-shadow: 0 24px 60px rgba(15,23,42,.18);
    backdrop-filter: blur(22px) saturate(145%);
    -webkit-backdrop-filter: blur(22px) saturate(145%);
  }
  .visual-v2 .content-header {
    position: sticky;
    top: 64px;
    z-index: 28;
    margin-inline: -.75rem;
    padding-inline: .75rem;
    background: linear-gradient(180deg, rgba(248,251,255,.96), rgba(248,251,255,.72));
    backdrop-filter: blur(16px);
  }
  body.v1-dark.visual-v2 .content-header {
    background: linear-gradient(180deg, rgba(2,6,23,.96), rgba(2,6,23,.72));
  }
  .visual-v2 .content-header h1 {
    max-width: 100%;
    overflow-wrap: anywhere;
  }
  .visual-v2 .premium-page-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    width: 100%;
  }
  .visual-v2 .premium-page-actions:empty { display: none; }
  .visual-v2 .premium-page-actions .btn,
  .visual-v2 .premium-page-actions a.btn {
    width: 100%;
    min-height: var(--v2-touch);
    padding-inline: .7rem;
  }
  .visual-v2 .card,
  .visual-v2 .premium-card,
  .visual-v2 .premium-surface,
  .visual-v2 .info-box,
  .visual-v2 .small-box {
    border-radius: 22px !important;
  }
  .visual-v2 .card-header,
  .visual-v2 .premium-section-header {
    min-height: auto;
    padding: 1rem !important;
    align-items: flex-start;
  }
  .visual-v2 .card-header .card-tools,
  .visual-v2 .card-header .btn-group {
    width: 100%;
  }
  .visual-v2 .form-row {
    margin-left: 0;
    margin-right: 0;
  }
  .visual-v2 .form-row > [class*="col-"],
  .visual-v2-public .form-row > [class*="col-"] {
    padding-left: 0;
    padding-right: 0;
  }
  .visual-v2 .form-group,
  .visual-v2-public .form-group {
    padding: .86rem;
    border: 1px solid rgba(37,99,235,.10);
    border-radius: 18px;
    background: rgba(255,255,255,.54);
  }
  body.v1-dark.visual-v2 .form-group,
  body.v1-dark.visual-v2-public .form-group {
    background: rgba(15,23,42,.48);
    border-color: rgba(226,232,240,.10);
  }
  .visual-v2 label,
  .visual-v2-public label,
  .visual-v2-auth label {
    font-size: .78rem;
  }
  .visual-v2 table.visual-v1-responsive-table tbody tr {
    margin: .85rem 0;
    padding: .95rem;
    position: relative;
  }
  .visual-v2 table.visual-v1-responsive-table tbody td {
    grid-template-columns: 1fr;
    gap: .25rem;
    padding: .5rem .1rem !important;
    font-weight: 700;
  }
  .visual-v2 table.visual-v1-responsive-table tbody td::before {
    font-size: .67rem;
  }
  .visual-v2 table.visual-v1-responsive-table tbody td:first-child {
    padding-top: .15rem !important;
    font-size: 1.02rem;
    font-weight: 950;
    color: #0f172a;
  }
  body.v1-dark.visual-v2 table.visual-v1-responsive-table tbody td:first-child { color: #f8fafc; }
  .visual-v2 table.visual-v1-responsive-table tbody td:last-child .btn,
  .visual-v2 table.visual-v1-responsive-table tbody td:last-child a.btn,
  .visual-v2 table.visual-v1-responsive-table tbody td:last-child button {
    width: 100%;
    margin: .18rem 0 !important;
  }
  .visual-v2 .dataTables_wrapper .row { margin-left: 0; margin-right: 0; }
  .visual-v2 .dataTables_wrapper .row > [class*="col-"] { padding-left: 0; padding-right: 0; }
  .visual-v2 .dataTables_filter input,
  .visual-v2 .dataTables_length select {
    width: 100% !important;
    margin: .25rem 0 .65rem !important;
  }
  .visual-v2 .dataTables_info,
  .visual-v2 .dataTables_paginate {
    text-align: center !important;
    padding-top: .65rem !important;
  }
  .visual-v2 .pagination {
    justify-content: center;
    flex-wrap: wrap;
    gap: .25rem;
  }
  .visual-v2 .modal-dialog {
    min-height: calc(100vh - 1.5rem);
    display: flex;
    align-items: flex-end;
    margin: .75rem;
  }
  .visual-v2 .modal-content {
    width: 100%;
    max-height: calc(100vh - 1.5rem);
    overflow: auto;
    border-radius: 26px 26px 22px 22px;
  }
  .visual-v2 .modal-footer {
    position: sticky;
    bottom: 0;
    background: rgba(255,255,255,.90);
    backdrop-filter: blur(16px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .55rem;
  }
  .visual-v2 .modal-footer .btn { width: 100%; margin: 0 !important; }
  body.v1-dark.visual-v2 .modal-footer { background: rgba(15,23,42,.90); }
  .visual-v2 .v1-theme-toggle { bottom: calc(var(--v2-bottom-nav-h) + 22px); }
  .visual-v2 .v1-back-top { bottom: calc(var(--v2-bottom-nav-h) + 82px); }
  .visual-v2-public .premium-form-steps { top: 10px; }
  .visual-v2-public .survey-step-footer {
    bottom: 10px;
    display: grid !important;
    grid-template-columns: 1fr;
  }
  .visual-v2-public .survey-step-footer .btn { width: 100%; }
}
@media (max-width: 420px) {
  .v2-mobile-dock { left: 7px; right: 7px; gap: 4px; padding: 8px; }
  .v2-mobile-dock-item span { font-size: .62rem; }
  .v2-mobile-dock-item i { font-size: .98rem; }
  .visual-v2 .premium-page-actions { grid-template-columns: 1fr; }
  .visual-v2-auth .login-v1-shell .card-body { padding: 1.05rem !important; }
}