/* TaxSecure — tema sobrio claro y oscuro (colores de VS Code Dark+). Sin dependencias externas.
 * El tema se fija con data-theme en <html> (static/js/theme.js). Todo color pasa por variables. */
:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-2: #f3f4f6;
  --header-bg: #ffffff;
  --sidebar-bg: #fbfbfc;
  --sidebar-text: #4b5563;
  --sidebar-hover: #f0f1f4;
  --sidebar-active-bg: #eceefb;
  --sidebar-active-text: #4456bb;
  --primary: #5468d4;
  --primary-dark: #4456bb;
  --on-primary: #ffffff;
  --link: #4456bb;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e8eaee;
  --input-bg: #ffffff;
  --input-border: #d9dce3;
  --focus-ring: rgba(84, 104, 212, .28);
  --success: #23795c;   --success-bg: #e6f5ef;
  --info: #2f7396;      --info-bg: #e7f2f8;
  --warning: #8a5f00;   --warning-bg: #fbf3df;
  --danger: #b5403a;    --danger-bg: #fbeaea;
  --secondary: #5f6673; --secondary-bg: #eef0f3;
  --code: #4456bb;
  /* Series validadas con el validador de dataviz (claro sobre #ffffff, oscuro sobre #252526). */
  --chart-1: #4f7fd1;
  --chart-2: #d9694b;
  --chart-3: #1f9486;
  --chart-grid: #eceef2;
  --chat-bg: #efeae2;
  --chat-dot: rgba(120, 100, 70, .10);
  --bubble-in: #ffffff;
  --bubble-out: #d9fdd3;
  --bubble-meta: #5f7079;
  --chat-read: #1d8fcb;
  --chat-send: #008069;
  --sidebar-width: 232px;
  --header-height: 56px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(17, 24, 39, .04);
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #1e1e1e;
  --surface: #252526;
  --surface-2: #2d2d30;
  --header-bg: #1e1e1e;
  --sidebar-bg: #252526;
  --sidebar-text: #cccccc;
  --sidebar-hover: #2a2d2e;
  --sidebar-active-bg: #37373d;
  --sidebar-active-text: #ffffff;
  --primary: #0e639c;
  --primary-dark: #1177bb;
  --on-primary: #ffffff;
  --link: #3794ff;
  --text: #d4d4d4;
  --muted: #9d9d9d;
  --border: #3c3c3c;
  --input-bg: #3c3c3c;
  --input-border: #4a4a4a;
  --focus-ring: rgba(0, 122, 204, .55);
  --success: #4ec9b0;   --success-bg: rgba(78, 201, 176, .13);
  --info: #75beff;      --info-bg: rgba(117, 190, 255, .13);
  --warning: #dcdcaa;   --warning-bg: rgba(220, 220, 170, .12);
  --danger: #f48771;    --danger-bg: rgba(244, 135, 113, .13);
  --secondary: #bbbbbb; --secondary-bg: rgba(187, 187, 187, .12);
  --code: #9cdcfe;
  --chart-1: #3794ff;
  --chart-2: #c97d10;
  --chart-3: #1fa58f;
  --chat-bg: #1e1e1e;
  --chat-dot: rgba(255, 255, 255, .04);
  --bubble-in: #2d2d30;
  --bubble-out: #005c4b;
  --bubble-meta: rgba(255, 255, 255, .65);
  --chat-read: #53bdeb;
  --chat-send: #008069;
  --chart-grid: #333333;
  --shadow: none;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: Inter, "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif; font-size: 15px;
  line-height: 1.5; color: var(--text); background: var(--bg); }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: Consolas, "Cascadia Code", SFMono-Regular, Menlo, monospace; font-size: 86%; color: var(--code); }
h1, h2, h3 { font-weight: 600; line-height: 1.25; margin: 0; color: var(--text); }
hr { border: 0; border-top: 1px solid var(--border); margin: 1.25rem 0; }
.icon { width: 1.1em; height: 1.1em; vertical-align: -.15em; flex-shrink: 0; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted, .text-muted { color: var(--muted); }
.small { font-size: .85rem; }
:root[data-theme="dark"] .only-light, :root:not([data-theme="dark"]) .only-dark { display: none; }

/* ---------- Layout ---------- */
.sidebar-toggle { position: absolute; opacity: 0; pointer-events: none; }
.main-sidebar { position: fixed; top: 0; bottom: 0; left: 0; width: var(--sidebar-width); background: var(--sidebar-bg);
  color: var(--sidebar-text); z-index: 1030; overflow-y: auto; border-right: 1px solid var(--border);
  transition: transform .2s ease; }
.brand-link { display: flex; align-items: center; gap: .55rem; height: var(--header-height); padding: 0 1rem; color: var(--text);
  font-size: 1.05rem; font-weight: 500; }
.brand-link:hover { text-decoration: none; color: var(--text); }
.brand-mark { width: 26px; height: 26px; border-radius: 7px; background: var(--primary); color: var(--on-primary);
  display: grid; place-items: center; font-weight: 700; font-size: .8rem; }
.brand-link b { font-weight: 700; }
.brand-logo { max-height: 34px; max-width: 190px; background: #fff; border-radius: 4px; padding: 2px; }
.brand-logo-preview { max-height: 60px; max-width: 240px; border: 1px solid var(--border); padding: 4px; }
.user-panel { display: flex; align-items: center; gap: .6rem; padding: .35rem 1rem .85rem; }
.user-avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--sidebar-active-bg);
  color: var(--sidebar-active-text); display: grid; place-items: center; font-weight: 600; font-size: .8rem;
  text-transform: uppercase; flex-shrink: 0; }
.user-info { line-height: 1.25; overflow: hidden; }
.user-info .name { color: var(--text); font-size: .88rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.user-info .role { font-size: .76rem; color: var(--muted); }
.nav-sidebar { list-style: none; margin: 0; padding: 0 .6rem .75rem; }
.nav-header { padding: .9rem .6rem .3rem; font-size: .72rem; font-weight: 600; letter-spacing: .03em; color: var(--muted); }
.nav-sidebar a { display: flex; align-items: center; gap: .6rem; padding: .42rem .6rem; margin-bottom: 1px;
  border-radius: var(--radius-sm); color: var(--sidebar-text); font-size: .9rem; }
.nav-sidebar a:hover { background: var(--sidebar-hover); text-decoration: none; }
.nav-sidebar a.active { background: var(--sidebar-active-bg); color: var(--sidebar-active-text); font-weight: 500; }
.nav-badge { margin-left: auto; }

.wrapper-content { margin-left: var(--sidebar-width); min-height: 100vh; display: flex; flex-direction: column; }
.main-header { height: var(--header-height); background: var(--header-bg); border-bottom: 1px solid var(--border); display: flex;
  align-items: center; justify-content: space-between; padding: 0 1.25rem; position: sticky; top: 0; z-index: 1020; }
.main-header .left, .main-header .right { display: flex; align-items: center; gap: .6rem; }
.main-header .muted { font-size: .86rem; }
.hamburger { cursor: pointer; color: var(--muted); padding: .3rem; display: inline-flex; }
.hamburger:hover { color: var(--text); }
.bell { position: relative; }
.bell-count { position: absolute; top: -2px; right: -4px; font-size: .62rem; }
.tenant-pill { display: inline-flex; align-items: center; gap: .35rem; padding: .22rem .65rem; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text); font-weight: 500; font-size: .82rem; }
.tenant-pill:hover { text-decoration: none; border-color: var(--muted); }
.brand-link-plain { color: var(--text); font-size: 1.05rem; font-weight: 400; }
.brand-link-plain b { font-weight: 700; }
.content-wrapper { flex: 1; }
.content-header { padding: 1.25rem 1.5rem .85rem; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: .5rem; }
.content-header h1 { font-size: 1.4rem; }
.breadcrumb { display: flex; list-style: none; margin: 0; padding: 0; font-size: .82rem; color: var(--muted); }
.breadcrumb li + li::before { content: "/"; padding: 0 .45rem; opacity: .6; }
.content { padding: 0 1.5rem 1.5rem; }
.main-footer { border-top: 1px solid var(--border); padding: .7rem 1.5rem; color: var(--muted); font-size: .8rem;
  display: flex; justify-content: space-between; gap: 1rem; }
.sidebar-overlay { display: none; }
.layout-no-sidebar .wrapper-content { margin-left: 0; }

/* Sidebar colapsable: en escritorio se oculta, en móvil se muestra (checkbox sin JS). */
.sidebar-toggle:checked ~ .main-sidebar { transform: translateX(calc(-1 * var(--sidebar-width))); }
.sidebar-toggle:checked ~ .wrapper-content { margin-left: 0; }
@media (max-width: 991.98px) {
  .main-sidebar { transform: translateX(calc(-1 * var(--sidebar-width))); }
  .wrapper-content { margin-left: 0; }
  .sidebar-toggle:checked ~ .main-sidebar { transform: none; }
  .sidebar-toggle:checked ~ .sidebar-overlay { display: block; position: fixed; inset: 0; background: rgba(0,0,0,.35); z-index: 1025; }
  .hide-mobile { display: none !important; }
  .content-header, .content { padding-left: 1rem; padding-right: 1rem; }
}

/* ---------- Grid ---------- */
.row { display: flex; flex-wrap: wrap; margin: 0 -7px; }
.row > [class*="col"] { padding: 0 7px; width: 100%; min-width: 0; }
/* ".row >" iguala la especificidad de la regla anterior: sin eso, todas las columnas quedarían al 100 %. */
@media (min-width: 768px) {
  .row > .col-md-4 { width: 33.333%; } .row > .col-md-6 { width: 50%; } .row > .col-md-8 { width: 66.667%; }
}
@media (min-width: 992px) {
  .row > .col-lg-3 { width: 25%; } .row > .col-lg-4 { width: 33.333%; } .row > .col-lg-6 { width: 50%; }
  .row > .col-lg-8 { width: 66.667%; } .row > .col-lg-12 { width: 100%; }
}

/* ---------- Tarjetas de estadística ---------- */
.small-box { position: relative; display: block; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--surface); box-shadow: var(--shadow); margin-bottom: 14px; overflow: hidden; color: var(--text); }
.small-box .inner { padding: .9rem 1.1rem .75rem; }
.small-box h3 { font-size: 1.65rem; font-weight: 600; margin: 0 0 .1rem; white-space: nowrap; }
.small-box p { margin: 0; color: var(--muted); font-size: .85rem; }
.small-box .icon-bg { position: absolute; top: .9rem; right: 1rem; width: 30px; height: 30px; padding: 6px; border-radius: 8px; }
.small-box .icon-bg svg { display: block; width: 100%; height: 100%; }
.small-box-footer { display: flex; align-items: center; gap: .3rem; padding: .4rem 1.1rem; border-top: 1px solid var(--border);
  color: var(--muted); font-size: .8rem; }
a.small-box-footer:hover { color: var(--text); text-decoration: none; background: var(--surface-2); }
.bg-info .icon-bg { background: var(--info-bg); color: var(--info); }
.bg-success .icon-bg { background: var(--success-bg); color: var(--success); }
.bg-warning .icon-bg { background: var(--warning-bg); color: var(--warning); }
.bg-danger .icon-bg { background: var(--danger-bg); color: var(--danger); }
.bg-secondary .icon-bg { background: var(--secondary-bg); color: var(--secondary); }

/* ---------- Tarjetas ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow);
  margin-bottom: 14px; display: flex; flex-direction: column; overflow: hidden; }
.card-header { padding: .75rem 1.1rem; border-bottom: 1px solid var(--border); display: flex; align-items: center;
  justify-content: space-between; gap: .5rem; flex-wrap: wrap; }
.card-title { font-size: .95rem; font-weight: 600; margin: 0; display: flex; align-items: center; gap: .45rem; }
.card-title .icon { color: var(--muted); }
.card-body { padding: 1.1rem; }
.card-body.p-0 { padding: 0; }
.card-footer { padding: .7rem 1.1rem; background: var(--surface-2); border-top: 1px solid var(--border); }
.card-tools { display: flex; gap: .4rem; align-items: center; flex-wrap: wrap; }

/* ---------- Tablas ---------- */
.table-responsive { overflow-x: auto; }
table.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th, .table td { padding: .6rem 1rem; border-top: 1px solid var(--border); text-align: left; vertical-align: middle; }
.table thead th { border-top: 0; border-bottom: 1px solid var(--border); font-weight: 500; font-size: .8rem; color: var(--muted); }
.table tbody tr:first-child td { border-top: 0; }
.table-hover tbody tr:hover { background: var(--surface-2); }
.table-sm th, .table-sm td { padding: .38rem 1rem; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.nowrap { white-space: nowrap; }

/* ---------- Formularios ---------- */
.form-group { margin-bottom: .95rem; }
.form-group label { display: inline-block; margin-bottom: .3rem; font-weight: 500; font-size: .88rem; }
.form-group input[type=text], .form-group input[type=email], .form-group input[type=password], .form-group input[type=tel],
.form-group input[type=number], .form-group input[type=file], .form-group input[type=search], .form-group input[type=date],
.form-group input[type=datetime-local], .form-group select, .form-group textarea, .form-control {
  display: block; width: 100%; padding: .42rem .65rem; font-size: .9rem; line-height: 1.5; color: var(--text);
  background: var(--input-bg); border: 1px solid var(--input-border); border-radius: var(--radius-sm); font-family: inherit;
  transition: border-color .12s, box-shadow .12s; }
input[type=color].form-control { padding: 2px; height: 36px; max-width: 80px; }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus, .form-control:focus {
  border-color: var(--primary); outline: 0; box-shadow: 0 0 0 3px var(--focus-ring); }
.form-group input[type=checkbox] { margin-right: .4rem; }
.form-group div > div > label, .form-group ul label { font-weight: 400; display: inline-flex; align-items: center; gap: .35rem; }
.form-group ul { list-style: none; padding: 0; margin: 0; }
.checkbox-label { font-weight: 400 !important; display: flex !important; gap: .5rem; align-items: flex-start; }
.invalid-feedback { color: var(--danger); font-size: .82rem; margin-top: .2rem; }
.has-error input, .has-error select, .has-error textarea { border-color: var(--danger); }
.form-inline { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.form-inline .form-control { width: auto; }
.input-group { display: flex; }
.input-group .form-control { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.input-group .btn { border-top-left-radius: 0; border-bottom-left-radius: 0; margin-left: -1px; }
form.inline { display: inline; }

/* ---------- Botones ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .35rem; font-weight: 500; text-align: center;
  border: 1px solid transparent; padding: .4rem .8rem; font-size: .88rem; line-height: 1.45; border-radius: var(--radius-sm);
  cursor: pointer; font-family: inherit; transition: background-color .12s, border-color .12s; }
.btn:hover { text-decoration: none; }
.btn:focus-visible, a:focus-visible { outline: 0; box-shadow: 0 0 0 3px var(--focus-ring); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: var(--on-primary); }
.btn-success { background: var(--success-bg); border-color: transparent; color: var(--success); }
.btn-success:hover { border-color: var(--success); color: var(--success); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: var(--surface); }
.btn-danger:hover { filter: brightness(.94); color: var(--surface); }
.btn-default { background: var(--surface); border-color: var(--input-border); color: var(--text); }
.btn-default:hover { background: var(--surface-2); color: var(--text); }
.btn-outline-danger { color: var(--danger); border-color: var(--input-border); background: transparent; }
.btn-outline-danger:hover { background: var(--danger-bg); color: var(--danger); border-color: var(--danger); }
.btn-link { background: none; border: 0; color: var(--muted); padding: .3rem; }
.btn-link:hover { color: var(--text); }
.btn-sm { padding: .22rem .55rem; font-size: .8rem; }
.btn-block { display: flex; width: 100%; }

/* ---------- Alertas y badges ---------- */
.alert { padding: .65rem .9rem; margin-bottom: .9rem; border: 1px solid transparent; border-radius: var(--radius-sm); font-size: .9rem; }
.alert-success { color: var(--success); background: var(--success-bg); }
.alert-error, .alert-danger { color: var(--danger); background: var(--danger-bg); }
.alert-warning { color: var(--warning); background: var(--warning-bg); }
.alert-info { color: var(--info); background: var(--info-bg); }
.alert-light { color: var(--text); background: var(--surface-2); border-color: var(--border); }
.badge { display: inline-block; padding: .16em .55em; font-size: 74%; font-weight: 500; line-height: 1.4; border-radius: 999px; white-space: nowrap; }
.badge-success, .badge-active { background: var(--success-bg); color: var(--success); }
.badge-danger, .badge-failure, .badge-denied { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info, .badge-primary { background: var(--info-bg); color: var(--info); }
.badge-secondary, .badge-inactive { background: var(--secondary-bg); color: var(--secondary); }

/* ---------- Gráficas (SVG generado en servidor, apps/reports/charts.py) ---------- */
.chart { display: block; width: 100%; max-width: 860px; height: auto; margin-inline: auto; }
.chart text { fill: var(--muted); font-size: 12px; font-family: inherit; }
.chart .label { fill: var(--text); }
.chart .grid { stroke: var(--chart-grid); stroke-width: 1; }
.chart .line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.chart .dot { stroke: var(--surface); stroke-width: 2; }
.chart .hit { fill: transparent; }
.chart .hit:hover { fill: var(--surface-2); fill-opacity: .6; }
.chart .s1 { stroke: var(--chart-1); } .chart .s2 { stroke: var(--chart-2); } .chart .s3 { stroke: var(--chart-3); }
.chart .line.s3 { stroke-dasharray: 6 6; } /* Punteada: si coincide con otra serie, deja ver la de debajo. */
.chart .dot.s1, .chart .dot.s2, .chart .dot.s3 { stroke: var(--surface); }
.chart .dot.s1, .chart .bar.s1 { fill: var(--chart-1); }
.chart .dot.s2 { fill: var(--chart-2); } .chart .dot.s3 { fill: var(--chart-3); }
.chart .bar.s1 { stroke: none; }
.legend { display: flex; flex-wrap: wrap; gap: .3rem 1rem; margin: 0 0 .5rem; font-size: .82rem; color: var(--muted); list-style: none; padding: 0; }
.legend li { display: inline-flex; align-items: center; gap: .35rem; }
.swatch { width: 12px; height: 3px; border-radius: 2px; }
.swatch.s1 { background: var(--chart-1); } .swatch.s2 { background: var(--chart-2); } .swatch.s3 { background: var(--chart-3); }
details.data-table { margin-top: .6rem; font-size: .85rem; }
details.data-table summary { cursor: pointer; color: var(--muted); }

/* ---------- Listas y varios ---------- */
.list-unstyled { list-style: none; margin: 0; padding: 0; }
.dl-horizontal { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0; font-size: .9rem; }
.dl-horizontal dt { color: var(--muted); font-weight: 400; }
.dl-horizontal dd { margin: 0; overflow-wrap: anywhere; }
.empty-state { text-align: center; padding: 2.25rem 1rem; color: var(--muted); }
.empty-state .icon { width: 36px; height: 36px; margin-bottom: .4rem; opacity: .5; }
.pagination { display: flex; list-style: none; padding: 0; margin: 0; gap: .25rem; align-items: center; font-size: .85rem; }
.pagination a, .pagination span { display: block; padding: .2rem .6rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); }
.pagination .current { background: var(--sidebar-active-bg); color: var(--sidebar-active-text); }
.year-header { background: var(--surface-2); font-weight: 500; }
progress.bar { width: 100%; height: .4rem; vertical-align: middle; accent-color: var(--primary); }
.chat { overflow: hidden; }
.chat-header { display: flex; align-items: center; gap: .7rem; padding: .6rem 1rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.chat-header strong, .chat-header small { display: block; }
.chat-header small { color: var(--muted); font-size: .76rem; }
.chat-header small .icon { width: 12px; height: 12px; }
.chat-avatar { flex: none; display: flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--chat-send); color: #fff; font-weight: 600; }
.chat-scroll { display: flex; flex-direction: column-reverse; min-height: 340px; max-height: min(62vh, 640px); overflow-y: auto; padding: .9rem 6%; background-color: var(--chat-bg); background-image: radial-gradient(var(--chat-dot) 1.5px, transparent 1.5px); background-size: 22px 22px; }
.thread { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .15rem; }
.chat-day { align-self: center; margin: .6rem 0 .35rem; }
.chat-day span { display: block; padding: .2rem .7rem; border-radius: var(--radius-sm); background: var(--bubble-in); color: var(--bubble-meta); font-size: .74rem; box-shadow: 0 1px .5px rgba(11, 20, 26, .13); }
.bubble { position: relative; display: flex; flex-wrap: wrap; align-items: flex-end; column-gap: .7rem; max-width: 65%; padding: .35rem .55rem .3rem .6rem; border-radius: 8px; background: var(--bubble-in); overflow-wrap: anywhere; align-self: flex-start; box-shadow: 0 1px .5px rgba(11, 20, 26, .13); }
.bubble.mine { align-self: flex-end; background: var(--bubble-out); }
.bubble.tail { margin-top: .45rem; border-top-left-radius: 0; }
.bubble.mine.tail { border-top-left-radius: 8px; border-top-right-radius: 0; }
.bubble.tail::before { content: ""; position: absolute; top: 0; left: -8px; border-top: 10px solid var(--bubble-in); border-left: 8px solid transparent; }
.bubble.mine.tail::before { left: auto; right: -8px; border-top-color: var(--bubble-out); border-left: 0; border-right: 8px solid transparent; }
.bubble-author, .bubble-attachment { flex-basis: 100%; }
.bubble-author { color: var(--chat-send); font-size: .78rem; font-weight: 600; }
[data-theme="dark"] .bubble-author { color: var(--success); }
.bubble-attachment { display: flex; align-items: center; gap: .3rem; margin-bottom: .15rem; }
.bubble-attachment a { color: inherit; text-decoration: underline; }
.bubble-text { min-width: 0; white-space: pre-wrap; }
.bubble .meta { display: inline-flex; align-items: center; gap: .2rem; margin-left: auto; font-size: .68rem; color: var(--bubble-meta); white-space: nowrap; }
.ticks { display: inline-flex; }
.ticks .icon { width: 15px; height: 15px; }
.ticks.read { color: var(--chat-read); }
.chat-composer { padding: .6rem .8rem; background: var(--surface-2); border-top: 1px solid var(--border); }
.chat-composer .alert { margin-bottom: .5rem; }
.chat-attach { display: flex; align-items: center; gap: .4rem; margin-bottom: .45rem; color: var(--muted); font-size: .82rem; }
.chat-attach input { min-width: 0; padding: 0; border: 0; background: none; color: inherit; font-size: inherit; }
.chat-attach input::file-selector-button { margin-right: .5rem; padding: .2rem .65rem; border: 1px solid var(--input-border); border-radius: var(--radius-sm); background: var(--surface); color: var(--text); font: inherit; cursor: pointer; }
.chat-input-row { display: flex; align-items: flex-end; gap: .55rem; }
.chat-input-row textarea { flex: 1; min-width: 0; min-height: 42px; max-height: 140px; padding: .55rem 1rem; border-radius: 21px; resize: none; field-sizing: content; }
.chat-send { flex: none; display: flex; align-items: center; justify-content: center; width: 42px; height: 42px; padding: 0; border: 0; border-radius: 50%; background: var(--chat-send); color: #fff; cursor: pointer; }
.chat-send:hover { filter: brightness(1.12); }
.chat-send:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.chat-note { margin: .45rem 0 0; color: var(--muted); font-size: .76rem; }
.chat-note .icon { width: 12px; height: 12px; }
@media (max-width: 600px) { .chat-scroll { padding-inline: .8rem; } .bubble { max-width: 85%; } }
.mb-0 { margin-bottom: 0; } .mt-3 { margin-top: 1rem; } .mb-3 { margin-bottom: 1rem; }
.d-flex { display: flex; } .gap-2 { gap: .5rem; } .justify-between { justify-content: space-between; } .flex-wrap { flex-wrap: wrap; }

/* ---------- Portal del cliente ---------- */
.layout-top-nav { min-height: 100vh; display: flex; flex-direction: column; }
.top-nav { display: flex; align-items: center; justify-content: space-between; gap: .5rem; padding: .55rem 1rem;
  background: var(--header-bg); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 1020; }
.top-nav-brand { display: flex; align-items: center; gap: .5rem; color: var(--text); font-weight: 600; overflow: hidden;
  white-space: nowrap; text-overflow: ellipsis; }
.top-nav-brand:hover { color: var(--text); text-decoration: none; }
.top-nav-right { display: flex; align-items: center; gap: .25rem; }
.portal-container { width: 100%; max-width: 900px; margin: 0 auto; padding: 1rem; flex: 1; }
.portal-client { margin: 0 0 .75rem; }
.portal-footer { text-align: center; padding: 1rem; }
.request-item { padding: .85rem 0; border-bottom: 1px solid var(--border); }
.request-item:last-child { border-bottom: 0; }
.signature-pad-wrap { display: flex; flex-direction: column; gap: .4rem; align-items: flex-start; }
.signature-pad { width: 100%; max-width: 520px; height: 160px; border: 1px dashed var(--input-border); border-radius: var(--radius-sm); background: #fff; touch-action: none; }

/* ---------- Autenticación ---------- */
.login-page { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 1rem; background: var(--bg); }
.login-box { width: 100%; max-width: 400px; }
.login-box.wide { max-width: 520px; }
.login-logo { text-align: center; font-size: 1.6rem; font-weight: 400; margin-bottom: .6rem; color: var(--text); }
.login-logo b { font-weight: 700; }
.lang-switch { display: flex; align-items: center; justify-content: center; gap: .2rem; margin: 0 0 .75rem; font-size: .82rem; color: var(--muted); }
.lang-switch .btn-link { font-size: .82rem; padding: 0 .2rem; }
.lang-switch .active { color: var(--text); font-weight: 600; }
.login-box-msg { text-align: center; margin: 0 0 1rem; color: var(--muted); }
.login-box-msg b { color: var(--text); }
.qr { display: flex; justify-content: center; margin: 1rem 0; }
.qr svg { width: 200px; height: 200px; background: #fff; padding: 8px; border-radius: var(--radius-sm); }
.secret { display: block; word-break: break-all; margin: .5rem 0; }
.codes { display: grid; grid-template-columns: 1fr 1fr; gap: .4rem; margin: 1rem 0; list-style: none; padding: 0; }
.codes code { font-size: 1rem; color: var(--text); }
.choice { width: 100%; display: flex; justify-content: space-between; align-items: center; padding: .7rem .9rem; margin-bottom: .5rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); color: var(--text); cursor: pointer; font: inherit; text-align: left; }
.choice:hover { border-color: var(--primary); background: var(--surface-2); }
.steps { padding-left: 1.2rem; }