/* =========================================================
 * Panel — Reactor
 * Shell del BackOffice (skill crear_backoffice). Un solo archivo, sin build.
 *
 * Zonas cromaticas:
 *   1) Chrome (sidebar + topbar): pintado en el rojo institucional #C11313
 *      (var(--primary)). Los hijos usan #fff / rgba negros translucidos,
 *      NO usan --text / --muted / --border (calibrados para gris).
 *   2) Contenido (cards, modales, inputs, dropdowns): grises oscuros
 *      neutros sobre --bg. El rojo institucional reaparece como ACENTO:
 *      botones primarios, focus, links activos, chips activos.
 *
 * No hay modo claro ni toggle. No hay indicador de version al pie del
 * sidebar (regla dura del skill crear_backoffice).
 * ======================================================= */

/* ---------- 1. Tokens ---------- */
:root {
    --bg:        #1a1a1a;   /* fondo del area de contenido */
    --surface:   #242526;   /* cards, modales, inputs, dropdowns */
    --border:    #383838;
    --row-hover: #2d2e2f;
    --primary:   #C11313;   /* rojo institucional (chrome + acentos) */
    --primary-h: #8e0e0e;
    --danger:    #e62a2a;   /* rojo brillante — solo destructivo */
    --success:   #22c55e;
    --warn:      #f59e0b;
    --info:      #3b82f6;
    --text:      #f0f0f0;
    --muted:     #9ca0a4;
    --radius:    10px;
    --shadow:    0 1px 4px rgba(0,0,0,.45);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.65);
}

/* ---------- 2. Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    color-scheme: dark;
}

a { color: inherit; text-decoration: none; }

/* ---------- 3. Layout ---------- */
.layout   { display: flex; min-height: 100vh; }

.sidebar  {
    width: 220px;
    background: var(--primary);
    border-right: 1px solid rgba(0,0,0,.25);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.main     { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

.topbar   {
    background: var(--primary);
    border-bottom: 1px solid rgba(0,0,0,.25);
    padding: 0 24px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--shadow);
    flex-shrink: 0;
}

.content  { flex: 1; padding: 24px; overflow-y: auto; }

/* ---------- 4. Sidebar ---------- */
/* Chrome rojo: los hijos usan blanco / negros translucidos, no los tokens grises. */
.sidebar-logo {
    height: 60px;                /* empata con la altura del topbar */
    padding: 0 20px;
    border-bottom: 1px solid rgba(0,0,0,.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.sidebar-logo-mark { display: block; width: auto; height: 24px; max-width: 100%; object-fit: contain; }

.sidebar-nav { padding: 8px 0 12px; flex: 1; }

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    font-size: .9rem;
    color: rgba(255,255,255,.85);
    cursor: pointer;
    border-left: 3px solid transparent;
    transition: background .15s, color .15s;
    text-decoration: none;
}
.nav-item:hover  { background: rgba(0,0,0,.18); color: #fff; }
.nav-item.active { background: rgba(0,0,0,.28); color: #fff; border-left-color: #fff; font-weight: 600; }
.nav-icon        { font-size: 1.1rem; width: 20px; text-align: center; }

/* Grupos colapsables */
.nav-group-wrap  { display: block; }
.nav-group-toggle {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    color: rgba(255,255,255,.85);
}
.nav-group-label { flex: 1; }
.nav-group-arrow {
    margin-left: auto;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1;
    color: rgba(255,255,255,.7);
    transition: transform .2s;
}
.nav-group-wrap.open .nav-group-arrow { transform: rotate(45deg); }   /* + -> x */

.nav-sub {
    display: none;
    background: rgba(0,0,0,.18);
    border-top: 1px solid rgba(0,0,0,.2);
    border-bottom: 1px solid rgba(0,0,0,.2);
}
.nav-group-wrap.open .nav-sub { display: block; }
.nav-sub-item                 { padding-left: 44px; font-size: .85rem; }
.nav-sub-item.active          { background: rgba(0,0,0,.32); }

/* ---------- 5. Topbar ---------- */
.topbar-left     { display: flex; align-items: center; gap: 8px; flex: 1; min-width: 0; }
.topbar-title    { font-size: 1rem; font-weight: 600; flex: 1; color: #fff; }

.topbar-user     { display: flex; align-items: center; gap: 8px; flex-shrink: 0; position: relative; }
.topbar-username {
    background: none; border: none; cursor: pointer;
    font-size: .85rem; color: rgba(255,255,255,.85);
    display: flex; align-items: center; gap: 6px;
    padding: 6px 10px; border-radius: 8px;
    transition: background .15s, color .15s;
    font-family: inherit;
}
.topbar-username:hover           { background: rgba(0,0,0,.18); color: #fff; }
.topbar-username i.fa-circle-user{ font-size: 1.1rem; }

.topbar .hamburger { color: #fff; }

/* Dropdown: se despliega sobre el area gris => tokens grises normales */
.user-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 6px);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    overflow: hidden;
    z-index: 200;
}
.user-dropdown.open { display: block; }
.user-dropdown-item {
    display: block;
    padding: 10px 16px;
    font-size: .85rem;
    color: var(--text);
    cursor: pointer;
    transition: background .15s;
}
.user-dropdown-item:hover { background: var(--bg); color: var(--primary); }

/* ---------- 6. Botones ---------- */
.btn {
    padding: 8px 16px;
    border-radius: var(--radius);
    border: none;
    font-size: .88rem;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: background .15s, transform .1s, color .15s, border-color .15s;
    font-family: inherit;
}
.btn:active          { transform: scale(.97); }
.btn-primary         { background: var(--primary); color: #fff; }
.btn-primary:hover   { background: var(--primary-h); }
.btn-danger          { background: var(--danger); color: #fff; }
.btn-danger:hover    { background: #c91515; color: #fff; }
.btn-secondary       { background: var(--surface); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-ghost           { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover     { background: var(--bg); color: var(--text); }
.btn-sm              { padding: 5px 12px; font-size: .8rem; }
.btn-icon-sm         {
    background: none; border: none; cursor: pointer;
    padding: 4px 8px; border-radius: 6px; font-size: .85rem;
    color: var(--muted);
}
.btn-icon-sm:hover   { background: var(--bg); color: var(--text); }

/* ---------- 7. Inputs ---------- */
input[type=text], input[type=number], input[type=url], input[type=tel],
input[type=email], input[type=date], input[type=time], input[type=datetime-local],
input[type=password], input[type=search], select, textarea {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 8px 12px;
    font-size: .88rem;
    background: var(--surface);
    color: var(--text);
    outline: none;
    transition: border .15s, box-shadow .15s;
    font-family: inherit;
}
input:focus, select:focus, textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(193,19,19,.25);
}
input:disabled, select:disabled, textarea:disabled,
input[readonly], textarea[readonly] {
    color: var(--muted); background: var(--bg); cursor: not-allowed; opacity: .75;
}
textarea { resize: vertical; min-height: 60px; }

.field-error   { margin-top: 4px; font-size: .78rem; color: var(--danger); }
.input-invalid { border-color: var(--danger) !important; box-shadow: 0 0 0 2px rgba(239,68,68,.18); }

.muted { color: var(--muted); }

/* ---------- 8. Formularios ---------- */
.form-row    { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-row-3  { grid-template-columns: repeat(3, 1fr); }
.form-row-4  { grid-template-columns: repeat(4, 1fr); }
.form-group  { display: flex; flex-direction: column; gap: 5px; }
.form-group label { font-size: .8rem; font-weight: 600; color: var(--muted); }
.form-group input,
.form-group select,
.form-group textarea { width: 100%; }

/* ---------- 9. Badges ---------- */
.badge         { display: inline-block; padding: 2px 10px; border-radius: 99px; font-size: .75rem; font-weight: 600; }
.badge-info    { background: rgba(59,130,246,.18); color: #93c5fd; }
.badge-success { background: rgba(34,197,94,.18);  color: #86efac; }
.badge-danger  { background: rgba(230,42,42,.2);   color: #f5a8a8; }
.badge-warn    { background: rgba(245,158,11,.18); color: #fcd34d; }

/* ---------- 10. Alerts ---------- */
.alert         {
    border-radius: var(--radius); padding: 10px 12px;
    font-size: .85rem; margin-bottom: 14px;
    border: 1px solid transparent;
}
.alert-error   { background: rgba(230,42,42,.12);  color: #f5a8a8; border-color: rgba(230,42,42,.3); }
.alert-warn    { background: rgba(245,158,11,.12); color: #fcd34d; border-color: rgba(245,158,11,.3); }
.alert-info    { background: rgba(59,130,246,.12); color: #93c5fd; border-color: rgba(59,130,246,.3); }
.alert-success { background: rgba(34,197,94,.12);  color: #86efac; border-color: rgba(34,197,94,.3); }

/* ---------- 11. Modales ---------- */
.modal-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.45);
    display: flex; align-items: center; justify-content: center;
    z-index: 100; opacity: 0; pointer-events: none; transition: opacity .2s;
}
.modal-backdrop.open { opacity: 1; pointer-events: all; }
.modal {
    background: var(--surface); border-radius: 14px;
    width: 100%; max-width: 520px; max-height: 90vh; overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: scale(.96) translateY(12px); transition: transform .2s;
    margin: 16px;
}
.modal-backdrop.open .modal { transform: scale(1) translateY(0); }
.modal-header {
    padding: 20px 24px 16px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.modal-title  { font-size: 1rem; font-weight: 700; display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.modal-body   { padding: 20px 24px; display: flex; flex-direction: column; gap: 16px; }
.modal-footer {
    padding: 16px 24px; border-top: 1px solid var(--border);
    display: flex; gap: 10px; justify-content: flex-end;
}

/* ---------- 12. Toasts ---------- */
.toast {
    position: fixed; bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(16px);
    background: #0d0d0d; color: var(--text);
    border: 1px solid var(--border);
    padding: 10px 20px; border-radius: 99px;
    font-size: .88rem; opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s;
    z-index: 200; white-space: nowrap;
    box-shadow: var(--shadow-lg);
}
.toast.show  { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { background: var(--danger); }

/* ---------- 13. Spinner ---------- */
.spin {
    display: inline-block; width: 28px; height: 28px;
    border: 3px solid var(--border); border-top-color: var(--primary);
    border-radius: 50%; animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- 14. Header de modulo ---------- */
.module-header   { margin-bottom: 18px; }
.module-title    { font-size: 1.35rem; font-weight: 700; color: var(--text); margin: 0 0 4px; line-height: 1.2; }
.module-subtitle { font-size: .88rem; color: var(--muted); margin: 0; line-height: 1.4; }

/* ---------- 15. Stat cards ---------- */
.stats-bar  { display: flex; gap: 14px; margin-bottom: 20px; flex-wrap: wrap; }
.stat-card  {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 20px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 120px;
}
.stat-label { font-size: .75rem; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.stat-value { font-size: 1.5rem; font-weight: 700; }
.stat-value.green  { color: var(--success); }
.stat-value.orange { color: var(--primary); }
.stat-value.red    { color: var(--danger); }
.stat-value.muted  { color: var(--muted); }

/* ---------- 16. Tile grid (menu de tarjetas) ---------- */
.tile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}
.tile-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    font-family: inherit;
    transition: border-color .15s, background .15s, transform .1s;
}
.tile-card:hover  { border-color: var(--primary); background: var(--row-hover); }
.tile-card:active { transform: scale(.98); }
.tile-icon        { font-size: 1.6rem; line-height: 1; margin-bottom: 4px; }
.tile-title       { font-weight: 600; font-size: .95rem; color: var(--text); }
.tile-desc        { font-size: .8rem; color: var(--muted); }

/* ---------- 17. Responsive ---------- */
.hamburger {
    display: none; background: none; border: none; cursor: pointer;
    font-size: 1.4rem; color: var(--text);
    padding: 4px 8px; margin-right: 8px; line-height: 1;
}
.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.45); z-index: 199;
}
.sidebar-overlay.active { display: block; }

@media (max-width: 768px) {
    .hamburger { display: inline-flex; align-items: center; }
    .sidebar   {
        position: fixed; top: 0; left: 0; height: 100vh; z-index: 200;
        transform: translateX(-100%); transition: transform .25s;
    }
    .sidebar.open { transform: translateX(0); }
    .form-row, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }
}

/* ---------- 18. Pantalla de login ----------
 * login.php es la unica vista que vive fuera de la SPA y no tiene chrome.
 * Excepcion al patron "rojo solo como acento": el card del login va
 * PINTADO de rojo institucional — mismo color que el chrome, asi la
 * pantalla "es" la marca. Los hijos siguen las reglas del chrome rojo:
 *   - tipografia en #fff / opacidades de blanco.
 *   - bordes y rellenos internos en negros translucidos.
 *   - el boton primario invierte la paleta (fondo blanco, texto rojo)
 *     para destacar sobre el fondo rojo sin perder contraste.
 */
body.login-page { background: var(--bg); }

.login-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}
.login-card {
    width: 100%;
    max-width: 360px;
    background: var(--primary);
    border: 1px solid rgba(0,0,0,.25);
    border-radius: 14px;
    box-shadow: var(--shadow-lg);
    padding: 28px 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    color: #fff;
}
.login-brand    { display: flex; align-items: center; justify-content: center; padding: 4px 0 0; }
.login-logo     { display: block; height: 44px; width: auto; max-width: 80%; object-fit: contain; }
.login-title    { font-size: 1.2rem; font-weight: 700; text-align: center; color: #fff; margin: 4px 0 0; }
.login-subtitle { font-size: .85rem; color: rgba(255,255,255,.78); text-align: center; margin: -8px 0 0; }

.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form .form-group label { color: rgba(255,255,255,.88); }
.login-form input[type=text],
.login-form input[type=password] {
    background: rgba(0,0,0,.22);
    border: 1px solid rgba(0,0,0,.35);
    color: #fff;
}
.login-form input::placeholder { color: rgba(255,255,255,.55); }
.login-form input:focus {
    border-color: #fff;
    box-shadow: 0 0 0 3px rgba(255,255,255,.22);
}
.login-form input.input-invalid {
    border-color: #fff !important;
    box-shadow: 0 0 0 2px rgba(255,255,255,.3);
}

.login-error {
    display: block;
    color: #fff;
    background: rgba(0,0,0,.28);
    border: 1px solid rgba(0,0,0,.35);
    border-radius: var(--radius);
    padding: 8px 12px;
    font-size: .82rem;
    font-weight: 500;
}
.login-error[hidden] { display: none; }

/* Boton primario invertido: blanco con texto rojo para contraste sobre rojo */
.login-page .btn-primary          { background: #fff; color: var(--primary); }
.login-page .btn-primary:hover    { background: rgba(255,255,255,.9); color: var(--primary-h); }
.login-page .btn-primary:disabled { background: rgba(255,255,255,.6); color: var(--primary); cursor: not-allowed; }
.login-submit                     { justify-content: center; padding: 10px 16px; margin-top: 4px; }