/* =========================================================
   Gestión — sistema de diseño común (facturas y presupuestos)
   Lo cargan las dos partes de la aplicación: la de presupuestos (React,
   importado en main.jsx) y la de facturas (Flask, /compartido/shell.css).
   - Idea: el código de colores de las tuberías de una instalación.
     Agua (azul) es el color de trabajo; calor (rojo) y gas (amarillo)
     solo aparecen en la marca, el menú y los avisos.
   - Tipografía: Archivo variable (local, sin Internet). Su eje de anchura da
     el carácter: títulos ensanchados, cifras condensadas.
   - Todos los colores son tokens de :root, redefinidos para el tema oscuro.
   ========================================================= */

@font-face {
  font-family: 'Archivo Variable'; font-style: normal; font-display: swap;
  font-weight: 100 900; font-stretch: 62% 125%;
  src: url(fonts/archivo-latin-ext-wdth-normal.woff2) format('woff2-variations');
  unicode-range: U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face {
  font-family: 'Archivo Variable'; font-style: normal; font-display: swap;
  font-weight: 100 900; font-stretch: 62% 125%;
  src: url(fonts/archivo-latin-wdth-normal.woff2) format('woff2-variations');
  unicode-range: U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}

:root {
  color-scheme: light;

  /* Superficies y texto */
  --bg: #eef1f0;
  --surface: #ffffff;
  --surface-2: #f6f8f7;
  --surface-3: #e9edec;
  --field: #ffffff;
  --border: #dce2e0;
  --border-strong: #c3ccc9;
  --text: #17242c;
  --text-2: #43535b;
  --muted: #66767d;
  --placeholder: #98a5aa;

  /* Las tres tuberías */
  --agua: #0b6e8f;
  --calor: #c1272d;
  --gas: #e3a008;

  /* Marca (agua) */
  --primary: #0b6e8f;
  --primary-hover: #085a75;
  --primary-soft: #e6f2f6;
  --primary-soft-2: #c9e3ec;
  --on-primary: #ffffff;
  --accent: #0b6e8f;
  --ink: #17242c;
  --on-ink: #f3f6f5;

  /* Estados */
  --ok: #2b7a4b;
  --ok-soft: #e8f4ec;
  --ok-border: #b9dcc6;
  --warn: #8a5a00;
  --warn-soft: #fdf5df;
  --warn-border: #efd38a;
  --danger: #c1272d;
  --danger-soft: #fcebeb;
  --danger-border: #f1c0c2;
  --info: #3d5a80;
  --info-soft: #e9eef5;
  --violet: #5b4a9e;
  --violet-soft: #efecf8;
  --amber: #8a5a00;
  --amber-soft: #fdf5df;

  /* Tablas y filas */
  --row-hover: #f4f8f8;
  --row-pending: #fffaeb;
  --row-estimate: #fffdf5;
  --row-edit: #f3f8fa;
  --chapter-1: #e3eff3;
  --chapter-2: #edf4f6;
  --chapter-3: #f3f7f8;
  --chapter-4: #f8fafa;
  --chapter-line-1: #0b6e8f;
  --chapter-line-2: #5a9cb3;
  --chapter-line-3: #9cc4d2;
  --chapter-line-4: #cfe2e8;

  /* Menú lateral */
  --sidebar: #f8faf9;
  --sidebar-2: #eaefed;
  --sidebar-text: #43535b;
  --sidebar-strong: #17242c;
  --sidebar-faint: #7c8a8f;

  /* Forma: radios pequeños y jerarquizados (campo < panel < diálogo) */
  --radius: 8px;
  --radius-sm: 5px;
  --radius-xs: 4px;
  --shadow-sm: 0 1px 0 rgba(23, 36, 44, 0.04);
  --shadow: 0 1px 0 rgba(23, 36, 44, 0.04);
  --shadow-lg: 0 18px 48px -16px rgba(23, 36, 44, 0.32), 0 2px 6px rgba(23, 36, 44, 0.08);
  --focus: 0 0 0 3px rgba(11, 110, 143, 0.3);
  --overlay: rgba(23, 36, 44, 0.42);
  --glass: rgba(238, 241, 240, 0.9);

  /* Tipografía (escala modular ~1.2, cuerpo de 14 px) */
  --font: 'Archivo Variable', 'Segoe UI Variable Text', 'Segoe UI', system-ui, sans-serif;
  --mono: 'Cascadia Mono', Consolas, 'SFMono-Regular', monospace;
  --fs-xs: 11.5px;
  --fs-sm: 12.5px;
  --fs: 14px;
  --fs-md: 16px;
  --fs-lg: 20px;
  --fs-xl: 28px;
  --wide: 112%;
  --narrow: 88%;

  font-family: var(--font);
  font-size: var(--fs);
  line-height: 1.45;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-feature-settings: 'tnum' 0;
}

/* Tema oscuro: elegido por el usuario o, si no eligió, el del sistema */
:root[data-theme="dark"] { color-scheme: dark; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { color-scheme: dark; }
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f181d;
    --surface: #152127;
    --surface-2: #121d22;
    --surface-3: #1c2b32;
    --field: #101a1f;
    --border: #24353d;
    --border-strong: #34484f;
    --text: #e4ecea;
    --text-2: #b3c1c0;
    --muted: #84979a;
    --placeholder: #5a6d71;
    --agua: #3fa7cf; --calor: #e5534b; --gas: #f0b429;
    --primary: #3fa7cf; --primary-hover: #66bcdc; --primary-soft: #12303b; --primary-soft-2: #18414f;
    --on-primary: #0b1a20; --accent: #3fa7cf; --ink: #e4ecea; --on-ink: #0f181d;
    --ok: #5cc48a; --ok-soft: #12291c; --ok-border: #1f4a32;
    --warn: #f0b429; --warn-soft: #2a220e; --warn-border: #59461a;
    --danger: #ef6b64; --danger-soft: #2d1515; --danger-border: #5c2929;
    --info: #8fb0d8; --info-soft: #18243a;
    --violet: #b3a6ef; --violet-soft: #221d3b;
    --amber: #f0b429; --amber-soft: #2a220e;
    --row-hover: #18262d; --row-pending: #231d0f; --row-estimate: #1d1b12; --row-edit: #142a33;
    --chapter-1: #15323d; --chapter-2: #142932; --chapter-3: #13232a; --chapter-4: #152127;
    --chapter-line-1: #3fa7cf; --chapter-line-2: #307f9d; --chapter-line-3: #255f75; --chapter-line-4: #1c4352;
    --sidebar: #121d22; --sidebar-2: #1c2b32; --sidebar-text: #b3c1c0; --sidebar-strong: #e4ecea; --sidebar-faint: #6f8285;
    --shadow-lg: 0 18px 48px -16px rgba(0, 0, 0, 0.75), 0 2px 6px rgba(0, 0, 0, 0.4);
    --focus: 0 0 0 3px rgba(63, 167, 207, 0.38);
    --overlay: rgba(3, 8, 10, 0.66);
    --glass: rgba(15, 24, 29, 0.9);
  }
}
:root[data-theme="dark"] {
  --bg: #0f181d;
  --surface: #152127;
  --surface-2: #121d22;
  --surface-3: #1c2b32;
  --field: #101a1f;
  --border: #24353d;
  --border-strong: #34484f;
  --text: #e4ecea;
  --text-2: #b3c1c0;
  --muted: #84979a;
  --placeholder: #5a6d71;
  --agua: #3fa7cf; --calor: #e5534b; --gas: #f0b429;
  --primary: #3fa7cf; --primary-hover: #66bcdc; --primary-soft: #12303b; --primary-soft-2: #18414f;
  --on-primary: #0b1a20; --accent: #3fa7cf; --ink: #e4ecea; --on-ink: #0f181d;
  --ok: #5cc48a; --ok-soft: #12291c; --ok-border: #1f4a32;
  --warn: #f0b429; --warn-soft: #2a220e; --warn-border: #59461a;
  --danger: #ef6b64; --danger-soft: #2d1515; --danger-border: #5c2929;
  --info: #8fb0d8; --info-soft: #18243a;
  --violet: #b3a6ef; --violet-soft: #221d3b;
  --amber: #f0b429; --amber-soft: #2a220e;
  --row-hover: #18262d; --row-pending: #231d0f; --row-estimate: #1d1b12; --row-edit: #142a33;
  --chapter-1: #15323d; --chapter-2: #142932; --chapter-3: #13232a; --chapter-4: #152127;
  --chapter-line-1: #3fa7cf; --chapter-line-2: #307f9d; --chapter-line-3: #255f75; --chapter-line-4: #1c4352;
  --sidebar: #121d22; --sidebar-2: #1c2b32; --sidebar-text: #b3c1c0; --sidebar-strong: #e4ecea; --sidebar-faint: #6f8285;
  --shadow-lg: 0 18px 48px -16px rgba(0, 0, 0, 0.75), 0 2px 6px rgba(0, 0, 0, 0.4);
  --focus: 0 0 0 3px rgba(63, 167, 207, 0.38);
  --overlay: rgba(3, 8, 10, 0.66);
  --glass: rgba(15, 24, 29, 0.9);
}

/* ------------------------- Base ------------------------- */

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); }
body { min-height: 100vh; }
h1, h2, h3, h4 { margin: 0; color: var(--text); font-weight: 650; }
p { margin: 0; }
a { color: var(--primary); }
.icon { flex-shrink: 0; display: inline-block; vertical-align: middle; }
.muted { color: var(--muted); }
.strong { font-weight: 600; }
.text-warn { color: var(--warn); font-weight: 600; }
.text-ok { color: var(--ok); }
.error-text { color: var(--danger); }
.small-text { font-size: var(--fs-sm); }
.hint { font-size: var(--fs-sm); color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* Foco visible solo con teclado (accesibilidad) */
:where(button, a, [role="tab"], [role="option"], summary, .nav-item):focus-visible {
  outline: none; box-shadow: var(--focus); border-radius: var(--radius-xs);
}
::selection { background: var(--primary-soft-2); }

kbd {
  font-family: var(--font); font-size: 11px; font-weight: 600; padding: 1px 5px; border-radius: 4px;
  border: 1px solid var(--border-strong); border-bottom-width: 2px;
  background: var(--surface); color: var(--text-2); font-variant-numeric: tabular-nums;
}

/* ------------------------- Marca: las tres tuberías ------------------------- */

.pipes { display: block; flex-shrink: 0; }
.pipes .p-agua { stroke: var(--agua); }
.pipes .p-calor { stroke: var(--calor); }
.pipes .p-gas { stroke: var(--gas); }

.content { padding: 28px 36px 64px; max-width: 1480px; width: 100%; }
.page { display: flex; flex-direction: column; gap: 20px; }

/* Cabecera de página: el título usa el ancho de la letra como rasgo */
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap; }
.page-header h1 {
  font-size: var(--fs-xl); font-weight: 700; font-stretch: var(--wide); letter-spacing: -0.025em; line-height: 1.1;
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-variant-numeric: tabular-nums;
}
.page-header p { color: var(--text-2); margin-top: 6px; font-size: 14px; max-width: 70ch; }
.page-header-actions { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.page-header-meta { display: flex; align-items: center; gap: 6px 14px; flex-wrap: wrap; margin-top: 8px; }


/* ------------------------- Botones ------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: inherit; font-weight: 600; font-size: 13.5px; line-height: 1.2;
  padding: 8px 14px; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer; text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.btn-secondary:hover:not(:disabled) { background: var(--surface-2); border-color: var(--muted); }
.btn-ghost { background: transparent; color: var(--text-2); }
.btn-ghost:hover:not(:disabled) { background: var(--surface-3); color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover:not(:disabled) { filter: brightness(0.92); }
/* Generar con IA: la acción principal de un presupuesto nuevo, en tinta */
.btn-ai { background: var(--ink); color: var(--on-ink); padding: 11px 18px; font-size: 14.5px; }
.btn-ai:hover:not(:disabled) { background: var(--primary); color: var(--on-primary); }
.btn-sm { padding: 5px 10px; font-size: var(--fs-sm); }
.btn .kbd-hint { font-size: 11px; opacity: 0.7; font-weight: 500; }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px; border-radius: var(--radius-sm);
  border: 1px solid transparent; background: transparent; color: var(--text-2);
  cursor: pointer; text-decoration: none; transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.icon-btn:hover:not(:disabled) { background: var(--surface-3); color: var(--text); }
.icon-btn.active { background: var(--primary-soft); color: var(--primary); }
.icon-btn.danger:hover:not(:disabled) { background: var(--danger-soft); color: var(--danger); }
.icon-btn.ghost:hover { background: var(--surface-3); }
.icon-btn:disabled { opacity: 0.35; cursor: not-allowed; }

/* ------------------------- Marco: menú lateral y barra superior ------------------------- */
/* Menú y barra en grafito, como la barra lateral de macOS en modo oscuro, frente al
   contenido claro. Jerarquía al estilo del Finder:
     · Áreas (Maestros, Gestión de clientes…): encabezado pequeño en gris; la flecha
       para plegar aparece al pasar el ratón.
     · Pantallas: icono en el azul de la marca y texto claro.
     · Pantalla abierta: pastilla redondeada en azul con texto blanco.
   Es oscuro en los dos temas; en el oscuro, algo más profundo que el contenido. */

:root {
  --rail: #222427;
  --rail-hover: rgba(255, 255, 255, 0.06);
  --rail-press: rgba(255, 255, 255, 0.1);
  --rail-line: rgba(255, 255, 255, 0.09);
  --rail-text: #e8e8ea;
  --rail-faint: #8e8e93;
  --rail-strong: #ffffff;
  --rail-icon: #5cb8dc;
  --rail-selected: #0f7ba3;
  /* Nombres anteriores del menú (los usan otras pantallas) */
  --sidebar: var(--rail);
  --sidebar-2: var(--rail-hover);
  --sidebar-text: var(--rail-text);
  --sidebar-strong: var(--rail-strong);
  --sidebar-faint: var(--rail-faint);
}
:root[data-theme="dark"] { --rail: #17181a; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --rail: #17181a; }
}

.shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 248px; flex-shrink: 0; position: sticky; top: 0; height: 100vh;
  background: var(--rail); color: var(--rail-text);
  border-right: 1px solid var(--rail-line);
  display: flex; flex-direction: column; gap: 16px; padding: 16px 10px 12px;
  overflow: hidden;
  transition: width 0.2s ease; z-index: 20;
  -webkit-font-smoothing: antialiased;
}
.sidebar > * { flex-shrink: 0; }
.sidebar :focus-visible { box-shadow: 0 0 0 2px var(--rail-icon); }
.sidebar .pipes .p-agua { stroke: #3fa7cf; }
.sidebar .pipes .p-calor { stroke: #e5534b; }
.sidebar .pipes .p-gas { stroke: #f0b429; }

/* Marca */
.brand { display: flex; align-items: center; gap: 10px; padding: 2px 8px; min-height: 40px; }
.brand-logo { display: grid; place-items: center; width: 32px; height: 32px; }
.brand-name { color: var(--rail-strong); font-weight: 650; font-size: 16px; white-space: nowrap; letter-spacing: -0.01em; }
.brand-sub { font-size: var(--fs-xs); color: var(--rail-faint); margin-top: 1px; white-space: nowrap; }
/* Logotipo de la empresa (Configuración): sobre blanco, para que se lea sobre el grafito */
.brand.has-logo { padding: 0 4px; }
.brand.has-logo .brand-logo { display: none; }
.brand.has-logo .brand-text { display: flex; flex-direction: column; gap: 7px; width: 100%; min-width: 0; }
.brand-company-logo {
  display: block; width: auto; height: auto; max-width: 100%; max-height: 72px; object-fit: contain;
  background: #fff; border-radius: 10px; padding: 8px 12px;
}
.brand.has-logo .brand-sub { padding-left: 4px; }

/* Acción principal, siempre a mano */
.sidebar-new.btn-primary {
  width: 100%; justify-content: center; padding: 8px 12px; border-radius: 8px;
  background: var(--rail-selected); color: #fff; font-weight: 600;
}
.sidebar-new.btn-primary:hover:not(:disabled) { background: #1489b4; }
.sidebar-new .kbd-hint { margin-left: auto; }

/* Presupuesto en edición: acceso directo desde cualquier pantalla */
.open-quote {
  display: flex; align-items: center; gap: 10px; width: 100%;
  font: inherit; text-align: left; cursor: pointer;
  background: var(--rail-hover); color: var(--rail-text); border: 1px solid var(--rail-line);
  border-radius: 8px; padding: 8px 10px;
}
.open-quote:hover { background: var(--rail-press); }
.open-quote.current { border-color: var(--rail-icon); }
.open-quote .icon { color: var(--rail-icon); }
.open-quote-text { min-width: 0; flex: 1; }
.open-quote-label { display: block; font-size: var(--fs-xs); color: var(--rail-faint); }
.open-quote-number { display: block; font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.open-quote .dirty-dot { width: 8px; height: 8px; border-radius: 50%; background: #f0b429; flex-shrink: 0; }

/* Áreas */
/* Solo el menú se desplaza si no cabe: marca, «Nuevo presupuesto» y el pie (usuario) siempre a la vista */
.sidebar > .nav {
  flex: 1 1 auto; min-height: 0; overflow-y: auto; overflow-x: hidden; margin: 0 -10px; padding: 0 10px;
  scrollbar-width: thin; scrollbar-color: var(--rail-press) transparent;
}
.nav { display: flex; flex-direction: column; gap: 10px; }
.nav-section { display: flex; flex-direction: column; }
.nav-group {
  display: flex; align-items: center; gap: 6px; width: 100%;
  font: inherit; font-size: 12px; font-weight: 600; color: var(--rail-faint);
  background: none; border: 0; border-radius: 6px;
  padding: 4px 10px 5px; cursor: pointer; text-align: left; white-space: nowrap;
}
.nav-group-label { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.nav-group:hover { color: var(--rail-text); }
.nav-chevron { opacity: 0; transition: opacity 0.15s, transform 0.15s; }
.nav-group:hover .nav-chevron, .nav-group:focus-visible .nav-chevron, .nav-group[aria-expanded="false"] .nav-chevron { opacity: 1; }
.nav-group[aria-expanded="false"] .nav-chevron { transform: rotate(-90deg); }

/* Pantallas */
.nav-children { display: flex; flex-direction: column; gap: 2px; }
/* Grupo plegado (con el menú estrecho de solo iconos se ven todos) */
.nav-children[hidden] { display: none; }
.shell.collapsed .nav-children[hidden] { display: flex; }
.nav-item {
  position: relative; display: flex; align-items: center; gap: 10px;
  padding: 6px 10px; border: 0; border-radius: 7px; background: none;
  color: var(--rail-text); font: inherit; font-size: 13.5px; font-weight: 500;
  text-align: left; text-decoration: none; cursor: pointer; white-space: nowrap;
}
.nav-item .icon { color: var(--rail-icon); }
.nav-item span { overflow: hidden; text-overflow: ellipsis; }
.nav-item:hover { background: var(--rail-hover); }
.nav-item:active { background: var(--rail-press); }
.nav-item.active, .nav-item[aria-current="page"] { background: var(--rail-selected); color: #fff; font-weight: 600; }
.nav-item.active .icon, .nav-item[aria-current="page"] .icon { color: #fff; }

/* Pie: usuario y herramientas */
.sidebar-footer { margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding-top: 10px; border-top: 1px solid var(--rail-line); }
.sidebar-note { font-size: var(--fs-xs); line-height: 1.5; color: var(--rail-faint); padding: 0 4px; }
.user-card { display: flex; align-items: center; gap: 10px; padding: 4px 4px 4px 8px; }
.avatar {
  display: grid; place-items: center; flex-shrink: 0; width: 30px; height: 30px; border-radius: 50%;
  background: linear-gradient(#6b6f76, #4a4d53); color: #fff;
  font-size: 11.5px; font-weight: 650; letter-spacing: 0.02em;
}
.user-card-text { flex: 1; min-width: 0; line-height: 1.25; }
.user-name { display: block; color: var(--rail-text); font-weight: 600; font-size: 13px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; color: var(--rail-faint); font-size: var(--fs-xs); }
.sidebar-icon-btn {
  display: inline-grid; place-items: center; width: 28px; height: 28px; flex-shrink: 0;
  border: 0; border-radius: 7px; background: transparent; color: var(--rail-faint); cursor: pointer;
}
.sidebar-icon-btn:hover { background: var(--rail-hover); color: var(--rail-text); }
.sidebar-tools { display: flex; gap: 4px; }
.sidebar-btn {
  flex: 1; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font: inherit; font-size: 12.5px; font-weight: 500; color: var(--rail-faint);
  background: transparent; border: 0; border-radius: 7px; padding: 6px 8px; cursor: pointer; white-space: nowrap;
}
.sidebar-btn:hover { color: var(--rail-text); background: var(--rail-hover); }

/* Estado de la IA (barra superior) */
.ai-status { display: flex; align-items: center; gap: 10px; padding: 0; }
.ai-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--rail-faint); flex-shrink: 0; }
.ai-status.ok .dot { background: #32d74b; }
.ai-status.down .dot { background: #ff453a; }
.ai-status-label { color: var(--rail-text); font-weight: 600; font-size: 12.5px; white-space: nowrap; }
.ai-status-model { font-size: var(--fs-xs); color: var(--rail-faint); }

/* Menú plegado: solo iconos; las áreas quedan como separadores y siempre abiertas */
.shell.collapsed .sidebar { width: 64px; padding-left: 10px; padding-right: 10px; }
.shell.collapsed .brand-text, .shell.collapsed .sidebar-note, .shell.collapsed .sidebar-btn span,
.shell.collapsed .sidebar-new span, .shell.collapsed .open-quote-text, .shell.collapsed .user-card-text,
.shell.collapsed .nav-item span { display: none; }
.shell.collapsed .brand { padding: 2px 6px; justify-content: center; }
.shell.collapsed .brand.has-logo .brand-logo { display: grid; }
.shell.collapsed .sidebar-new, .shell.collapsed .open-quote { justify-content: center; padding-left: 0; padding-right: 0; }
.shell.collapsed .sidebar-tools, .shell.collapsed .user-card { flex-direction: column; }
.shell.collapsed .user-card { padding: 0; gap: 4px; }
.shell.collapsed .nav { gap: 0; }
.shell.collapsed .nav-group { pointer-events: none; justify-content: center; padding: 8px 0; }
.shell.collapsed .nav-group > * { display: none; }
.shell.collapsed .nav-group::before { content: ''; width: 24px; height: 1px; background: var(--rail-line); }
.shell.collapsed .nav-section:first-child .nav-group { display: none; }
.shell.collapsed .nav-children, .shell.collapsed .nav-children[hidden] { display: flex !important; }
.shell.collapsed .nav-item { justify-content: center; padding: 8px 0; }

/* Barra superior: continúa el menú */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.appbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  background: var(--rail); color: var(--rail-text);
  border-bottom: 1px solid var(--rail-line);
  padding: 8px 32px; min-height: 52px;
  position: sticky; top: 0; z-index: 10;
}
.breadcrumb { display: flex; align-items: center; gap: 2px; font-size: 13.5px; color: var(--rail-faint); min-width: 0; }
.breadcrumb a, .breadcrumb button {
  color: var(--rail-faint); text-decoration: none; font: inherit; background: none; border: none;
  padding: 3px 6px; cursor: pointer; border-radius: 6px;
}
.breadcrumb a:hover, .breadcrumb button:hover { color: var(--rail-text); background: var(--rail-hover); }
.breadcrumb .current { color: var(--rail-strong); font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; padding: 3px 6px; }
.breadcrumb .icon { color: var(--rail-faint); opacity: 0.7; }
.appbar-tools { display: flex; align-items: center; gap: 16px; color: var(--rail-faint); font-size: var(--fs-sm); }
.appbar kbd { background: var(--rail-hover); border-color: var(--rail-line); color: var(--rail-faint); }
.search-trigger {
  display: inline-flex; align-items: center; gap: 8px; min-width: 240px;
  font: inherit; font-size: 13px; color: var(--rail-faint); cursor: pointer;
  background: var(--rail-hover); border: 1px solid var(--rail-line); border-radius: 8px;
  padding: 5px 7px 5px 10px;
}
.search-trigger:hover { background: var(--rail-press); color: var(--rail-text); }
.search-trigger span { flex: 1; text-align: left; }
.appbar .icon-btn { color: var(--rail-text); }
.appbar .icon-btn:hover:not(:disabled) { background: var(--rail-hover); color: var(--rail-strong); }
.icon-btn.menu-btn { display: none; }

@media (max-width: 900px) {
  .sidebar {
    position: fixed; left: 0; top: 0; bottom: 0; transform: translateX(-100%);
    transition: transform 0.2s ease; box-shadow: var(--shadow-lg);
  }
  .shell.menu-open .sidebar { transform: none; }
  /* En móvil el menú se abre siempre completo */
  .shell.collapsed .sidebar { width: 248px; padding: 16px 10px 12px; }
  .shell.collapsed .brand-text, .shell.collapsed .sidebar-new span, .shell.collapsed .sidebar-btn span,
  .shell.collapsed .open-quote-text, .shell.collapsed .user-card-text, .shell.collapsed .nav-item span { display: initial; }
  .shell.collapsed .brand { justify-content: flex-start; }
  .shell.collapsed .brand.has-logo .brand-text { display: flex; }
  .shell.collapsed .brand.has-logo .brand-logo { display: none; }
  .shell.collapsed .user-card, .shell.collapsed .sidebar-tools { flex-direction: row; }
  .shell.collapsed .user-card { padding: 4px 4px 4px 8px; }
  .shell.collapsed .nav { gap: 10px; }
  .shell.collapsed .nav-group { pointer-events: auto; justify-content: flex-start; padding: 4px 10px 5px; }
  .shell.collapsed .nav-group > * { display: revert; }
  .shell.collapsed .nav-group::before { display: none; }
  .shell.collapsed .nav-section:first-child .nav-group { display: flex; }
  .shell.collapsed .nav-children[hidden] { display: none !important; }
  .shell.collapsed .nav-item { justify-content: flex-start; padding: 6px 10px; }
  .sidebar-backdrop { position: fixed; inset: 0; background: var(--overlay); z-index: 15; }
  .icon-btn.menu-btn { display: inline-grid; }
  .collapse-btn { display: none !important; }
  .appbar { padding: 8px 16px; }
  .content { padding: 20px 16px 48px; }
  .search-trigger { min-width: 0; }
  .search-trigger span, .search-trigger kbd { display: none; }
  .appbar .ai-status > div:last-child { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .sidebar, .nav-chevron { transition: none; }
}