/* ── Variables globales SIDEM ─────────────────────────────────────────────── */
:root {
    --bg:       #0f1117;
    --surface:  #181c27;
    --surface2: #1f2435;
    --border:   #2a3045;
    --accent:   #2d6fd4; /* a11y: oscurecido para contraste AA de texto blanco (antes #4f8ef7) */
    --accent2:  #7c5cfc;
    --green:    #22c55e;
    --yellow:   #f59e0b;
    --gold:     #f59e0b;
    --red:      #ef4444;
    --text:     #e2e8f0;
    --muted:    #64748b;
    --radius:   12px;
    --radius-btn: 8px; /* radio estándar de botones */
    --font:     'DM Sans', sans-serif;
    --mono:     'DM Mono', monospace;

    /* ── Escala de espaciado (sistema de diseño) ── */
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-6:  24px;
    --space-8:  32px;
    --space-12: 48px;

    /* ── Escala tipográfica ── */
    --fs-h1:      1.6rem;
    --fs-h2:      1.3rem;
    --fs-h3:      1.05rem;
    --fs-body:    .9rem;
    --fs-caption: .78rem;
    --fs-mono:    .85rem;

    /* ── Duración de transición estándar (microinteracciones) ── */
    --transition-fast: 150ms ease;
    --transition-base: 220ms ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

/* ── Topbar ─────────────────────────────────────────────────────────────── */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 2rem;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.topbar-right { display: flex; align-items: center; gap: 8px; }

/* ── Brand ──────────────────────────────────────────────────────────────── */
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    color: inherit;
}

.brand-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    transform: rotate(45deg); /* rombo plano: firma geométrica de marca, sin degradé */
    box-shadow: 0 0 8px var(--accent);
    flex-shrink: 0;
}

.brand-sub { color: var(--muted); font-weight: 400; font-size: .8rem; }

/* ── Botones comunes ─────────────────────────────────────────────────────── */
.btn-ghost {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: var(--radius-btn);
    padding: 6px 14px;
    font-family: var(--font);
    font-size: .85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    text-decoration: none;
}
.btn-ghost:hover { background: var(--surface2); border-color: var(--accent); color: var(--accent); transform: translateY(-1px); }
.btn-ghost:active { transform: translateY(0); }

.btn-primary {
    background: var(--accent);
    border: none;
    color: #fff;
    border-radius: var(--radius-btn);
    padding: 8px 16px;
    font-family: var(--font);
    font-size: .85rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: opacity var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
}
.btn-primary:hover { opacity: .85; transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-primary:disabled,
.btn-primary:disabled:hover { opacity: .4; cursor: not-allowed; transform: none; box-shadow: none; }

/* Botón de acción destructiva (antes inline en ajustes.html) */
.btn-danger {
    background: rgba(220,38,38,.1);
    color: var(--red);
    border: 1px solid rgba(220,38,38,.3);
    border-radius: var(--radius-btn);
    padding: 8px 18px;
    font-size: .83rem;
    font-weight: 500;
    cursor: pointer;
    transition: background .15s;
}
.btn-danger:hover { background: rgba(220,38,38,.18); }
.btn-danger:disabled { opacity: .5; cursor: not-allowed; }

/* Botón de descarga (antes inline en ajustes.html) */
.btn-download {
    background: rgba(37,99,235,.1);
    color: var(--accent);
    border: 1px solid rgba(37,99,235,.25);
    border-radius: var(--radius-btn);
    padding: 9px 20px;
    font-size: .83rem;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background .15s;
    text-decoration: none;
}
.btn-download:hover { background: rgba(37,99,235,.18); }

/* Botón de cierre de sesión (antes inline en dashboard.html) */
.btn-logout {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    border-radius: var(--radius-btn);
    padding: 6px 12px;
    font-family: var(--font);
    font-size: .84rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all .15s;
}
.btn-logout:hover { border-color: #ef4444; color: #ef4444; }

/* Enlace tipo chip (ej. "Consulta docente" en topbar) */
.chip-link {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    border-radius: var(--radius-btn);
    padding: 6px 12px;
    font-family: var(--font);
    font-size: .84rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all .15s;
}
.chip-link:hover { border-color: var(--accent); color: var(--accent); }

/* ── Card oscura base ────────────────────────────────────────────────────── */
.card-dark {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--space-8);
}

/* ── Animaciones comunes ─────────────────────────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Variante usada en el indicador flotante "Consultando Moodle" de actividad.html */
@keyframes spin-moodle { to { transform: rotate(360deg); } }

/* ═══════════════════════════════════════════════════════════
   TEMA OSCURO (por defecto — también en :root como fallback)
   ═══════════════════════════════════════════════════════════ */
html[data-theme="dark"] {
    --bg:       #0f1117;
    --surface:  #181c27;
    --surface2: #1f2435;
    --border:   #2a3045;
    --accent:   #2d6fd4; /* a11y: oscurecido para contraste AA de texto blanco (antes #4f8ef7) */
    --accent2:  #7c5cfc;
    --green:    #22c55e;
    --yellow:   #f59e0b;
    --gold:     #f59e0b;
    --red:      #ef4444;
    --text:     #e2e8f0;
    --muted:    #94a3b8;
    --input-bg: #2a3349;
    --input-shadow: rgba(0,0,0,.35);
    --input-focus-ring: rgba(79,142,247,.2);

    /* ── Elevación (dark: sombras más profundas para separar del fondo oscuro) ── */
    --shadow-sm: 0 1px 3px rgba(0,0,0,.3), 0 1px 2px rgba(0,0,0,.24);
    --shadow-md: 0 4px 24px rgba(0,0,0,.35), 0 1px 4px rgba(0,0,0,.2);
    --shadow-lg: 0 12px 32px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.25);

    /* ── Patrón de marca: retícula de cruces sólidas tipo plano técnico (login, dashboard, error) ── */
    --brand-mesh: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28'%3E%3Cpath d='M14 11v6M11 14h6' stroke='%2394a3b8' stroke-opacity='.14' stroke-width='1'/%3E%3C/svg%3E");
    --brand-mesh-size: 28px 28px;
}

/* ═══════════════════════════════════════════════════════════
   TEMA CLARO
   ═══════════════════════════════════════════════════════════ */
html[data-theme="light"] {
    --bg:       #f0f4f8;
    --surface:  #ffffff;
    --surface2: #f1f5f9;
    --border:   #e2e8f0;
    --accent:   #2563eb;
    --accent2:  #7c3aed;
    --green:    #16a34a;
    --yellow:   #d97706;
    --gold:     #b45309;
    --red:      #dc2626;
    --text:     #1e293b;
    --muted:    #475569;
    --input-bg: #ffffff;
    --input-shadow: rgba(0,0,0,.09);
    --input-focus-ring: rgba(37,99,235,.18);

    /* ── Elevación (light: sombras suaves, la superficie ya contrasta con el fondo) ── */
    --shadow-sm: 0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
    --shadow-md: 0 4px 16px rgba(0,0,0,.09), 0 2px 6px rgba(0,0,0,.06);
    --shadow-lg: 0 12px 28px rgba(0,0,0,.14), 0 4px 10px rgba(0,0,0,.08);

    /* ── Patrón de marca: retícula de cruces sólidas tipo plano técnico (login, dashboard, error) ── */
    --brand-mesh: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='28' height='28'%3E%3Cpath d='M14 11v6M11 14h6' stroke='%2364748b' stroke-opacity='.16' stroke-width='1'/%3E%3C/svg%3E");
    --brand-mesh-size: 28px 28px;
}

/* ── Bootstrap tooltip: sobre topbar sticky ─────────────────────────────── */
.tooltip { z-index: 1500 !important; }

/* ── Topbar: user badge ──────────────────────────────────────────────────── */
.user-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: .84rem;
}

/* ── Rol tag ─────────────────────────────────────────────────────────────── */
.rol-tag {
    background: rgba(79,142,247,.15); /* fallback para navegadores sin color-mix */
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    color: var(--accent);
    border-radius: 4px;
    padding: 1px 7px;
    font-size: .7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.rol-tag.admin      { background: rgba(236,72,153,.13); color: #e879b0; }
.rol-tag.superadmin { background: rgba(245,158,11,.15); color: var(--gold); }

/* ── Badges de rol (tabla usuarios) ────────────────────────────────────── */
.badge-superadmin         { background: rgba(245,158,11,.15);  color: var(--gold);     border: 1px solid rgba(245,158,11,.35); }
.badge-admin              { background: rgba(236,72,153,.13);  color: #e879b0;         border: 1px solid rgba(236,72,153,.3); }
.badge-revisor            { background: rgba(79,142,247,.12);  color: var(--accent);   border: 1px solid rgba(79,142,247,.25); }
/* Tints anclados al --accent actual (con fallback rgba arriba para navegadores sin color-mix) */
.badge-revisor            { background: color-mix(in srgb, var(--accent) 12%, transparent); border-color: color-mix(in srgb, var(--accent) 25%, transparent); }
.badge-lider              { background: rgba(34,197,94,.12);   color: var(--green);    border: 1px solid rgba(34,197,94,.25); }
.badge-lider_departamento { background: rgba(124,92,252,.12);  color: var(--accent2);  border: 1px solid rgba(124,92,252,.25); }

/* ── Modales (Bootstrap theme override) ─────────────────────────────────── */
.modal-content { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); }
.modal-header  { border-bottom: 1px solid var(--border); }
.modal-footer  { border-top:    1px solid var(--border); }
.modal-title   { font-weight: 600; font-size: .95rem; }
.btn-close     { filter: invert(1); }

/* ── Títulos de página ───────────────────────────────────────────────────── */
.page-title    { font-size: var(--fs-h2); font-weight: 600; }
.page-subtitle { font-size: var(--fs-body); color: var(--muted); margin-top: 2px; }

/* ── Loader ring ─────────────────────────────────────────────────────────── */
.loader-ring {
    width: 40px; height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .8s linear infinite;
    margin: 0 auto;
}

/* ── Loader spinner pequeño (barras de carga, indicadores inline) ─────────── */
.loader-spinner {
    width: 16px; height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin .65s linear infinite;
    flex-shrink: 0;
}

/* ── Toasts ──────────────────────────────────────────────────────────────── */
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } }
.toast-stack {
    position: fixed; top: 76px; right: 20px; z-index: 300;
    display: flex; flex-direction: column; gap: 8px;
}
.toast-item {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    font-size: .85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
    box-shadow: 0 8px 24px rgba(0,0,0,.4);
    animation: slideIn .2s ease;
}
.toast-item.success { border-left: 3px solid var(--green); }
.toast-item.danger  { border-left: 3px solid var(--red); }
.toast-item.warning { border-left: 3px solid var(--yellow); }
.toast-icon                    { font-size: 1rem; }
.toast-item.success .toast-icon { color: var(--green); }
.toast-item.danger  .toast-icon { color: var(--red); }
.toast-item.warning .toast-icon { color: var(--yellow); }
.toast-close {
    background: transparent;
    border: none;
    color: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
    margin-left: 4px;
    border-radius: 4px;
    flex-shrink: 0;
    transition: color var(--transition-fast), background-color var(--transition-fast);
}
.toast-close:hover { color: var(--text); background: rgba(255,255,255,.08); }
[data-theme="light"] .toast-close:hover { background: rgba(0,0,0,.06); }

/* Transición suave al cambiar tema */
body,
.topbar,
.card-dark,
.modal-content,
.table-wrap,
.sidem-input,
.btn-ghost {
    transition: background-color .12s ease, border-color .12s ease, color .12s ease;
}

/* Suprimir transiciones durante toggle de tema — evita repintado lento en tablas grandes */
html.no-transition *,
html.no-transition *::before,
html.no-transition *::after {
    transition-duration: 0ms !important;
}

/* Scrollbar tema claro */
[data-theme="light"] * {
    scrollbar-color: #cbd5e1 transparent;
}
[data-theme="light"] ::-webkit-scrollbar-thumb { background: #94a3b8; }
[data-theme="light"] ::-webkit-scrollbar-track { background: #f1f5f9; }

/* Gradiente de fondo reducido en tema claro */
[data-theme="light"] body::before {
    opacity: 0.35;
}

/* ── Mejoras visuales dark ── */
[data-theme="dark"] .card-dark {
    box-shadow: var(--shadow-md);
}
[data-theme="dark"] .topbar {
    box-shadow: 0 1px 0 var(--border), 0 2px 12px rgba(0,0,0,.25);
}

/* ── Hover de fila global (aplica también en tema oscuro, el default) ── */
tbody tr:hover { background: var(--surface2); }
tbody tr:hover .col-frozen { background: var(--surface2); }

/* ── Mejoras visuales light ── */
[data-theme="light"] .card-dark {
    box-shadow: var(--shadow-sm);
}
[data-theme="light"] .topbar {
    box-shadow: 0 1px 0 var(--border), 0 2px 8px rgba(0,0,0,.06);
}
[data-theme="light"] .btn-ghost:hover {
    background: #eff6ff;
}
[data-theme="light"] .btn-primary {
    box-shadow: 0 2px 8px rgba(37,99,235,.25);
}
[data-theme="light"] tbody tr:hover {
    background: #f8faff;
}
[data-theme="light"] thead th {
    background: #f1f5f9;
}
[data-theme="light"] .col-frozen {
    background: #ffffff;
}
[data-theme="light"] tbody tr:hover .col-frozen {
    background: #f8faff;
}
[data-theme="light"] .modal-content {
    box-shadow: 0 8px 40px rgba(0,0,0,.18);
}
[data-theme="light"] .rol-tag.admin {
    color: #9d174d;
}
[data-theme="light"] .badge-si {
    background: rgba(22,163,74,.1);
    color: #15803d;
    border-color: rgba(22,163,74,.25);
}
[data-theme="light"] .badge-no {
    background: rgba(220,38,38,.08);
    color: #dc2626;
    border-color: rgba(220,38,38,.2);
}

/* ── Focus rings accesibles ── */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ── Botón toggle tema ── */
.btn-theme-toggle {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 8px;
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 1.05rem;
    transition: background .18s, border-color .18s, color .18s, box-shadow .18s;
    flex-shrink: 0;
    padding: 0;
    line-height: 1;
}
.btn-theme-toggle i {
    background: transparent;
    display: inline-flex;
}
.btn-theme-toggle:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: rgba(79,142,247,.1); /* fallback para navegadores sin color-mix */
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}
[data-theme="light"] .btn-theme-toggle {
    background: #ffffff;
    border-color: #d1d5db;
    color: #374151;
    box-shadow: 0 1px 2px rgba(0,0,0,.08);
}
[data-theme="light"] .btn-theme-toggle:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: #eff6ff;
    box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

/* ── Inputs de búsqueda / filtro visibles en ambos temas ────────────────── */
.sidem-input {
    background:    var(--input-bg, var(--surface));
    border:        1.5px solid var(--border);
    color:         var(--text);
    border-radius: 10px;
    outline:       none;
    font-family:   var(--font);
    transition:    border-color .15s, box-shadow .15s;
}
.sidem-input:focus {
    border-color: var(--accent);
    box-shadow:   0 0 0 3px var(--input-focus-ring, rgba(79,142,247,.18));
}
.sidem-input::placeholder { color: var(--muted); opacity: 1; }

/* En tema claro la sombra sí aporta profundidad */
[data-theme="light"] .sidem-input {
    box-shadow: 0 1px 3px rgba(0,0,0,.07);
}
[data-theme="light"] .sidem-input:focus {
    box-shadow: 0 1px 3px rgba(0,0,0,.07), 0 0 0 3px rgba(37,99,235,.15);
}

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
* {
    scrollbar-width: thin;
    scrollbar-color: #2a3045 transparent;
}

/* === Accesibilidad === */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}
.visually-hidden.focusable:focus,
.visually-hidden.focusable:active {
    position: static !important;
    width: auto !important;
    height: auto !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    white-space: normal !important;
}
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent, #2d6fd4);
    color: #fff;
    padding: 8px 16px;
    text-decoration: none;
    border-radius: 0 0 4px 0;
    z-index: 10000;
    font-weight: 600;
    transition: top 0.15s ease;
}
.skip-link:focus { top: 0; }

/* === Cookie Consent Banner === */
.cookie-consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--surface2, #1f2435);
    border-top: 2px solid var(--accent, #2d6fd4);
    padding: 14px 24px;
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.25);
    flex-wrap: wrap;
}
[data-theme="light"] .cookie-consent-banner {
    background: #ffffff;
    border-top-color: var(--accent, #2563eb);
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}
.cookie-consent-content {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
    min-width: 260px;
}
.cookie-consent-icon { font-size: 1.4rem; flex-shrink: 0; }
.cookie-consent-text {
    font-size: 0.85rem;
    color: var(--text, #e2e8f0);
    line-height: 1.5;
    margin: 0;
}
.cookie-consent-text strong { color: var(--accent, #2d6fd4); }
[data-theme="light"] .cookie-consent-text { color: var(--text, #1e293b); }
.cookie-consent-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.btn-cookie-accept {
    background: var(--accent, #2d6fd4);
    color: #ffffff;
    border: none;
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s, transform 0.1s;
    white-space: nowrap;
}
.btn-cookie-accept:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-cookie-accept:focus { outline: 2px solid var(--accent, #2d6fd4); outline-offset: 2px; }
.btn-cookie-reject {
    background: transparent;
    color: var(--muted, #94a3b8);
    border: 1px solid var(--border, #2d3447);
    padding: 5px 12px;
    border-radius: 6px;
    font-size: 0.78rem;
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
    white-space: nowrap;
}
.btn-cookie-reject:hover { color: var(--text, #e2e8f0); border-color: var(--muted, #94a3b8); }
[data-theme="light"] .btn-cookie-reject { color: var(--muted, #475569); border-color: #cbd5e1; }
[data-theme="light"] .btn-cookie-reject:hover { color: var(--text, #1e293b); border-color: var(--muted, #475569); }

/* ═══════════════════════════════════════════════════════════
   Accesibilidad: movimiento reducido (WCAG 2.3.3)
   ═══════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  /* Excepción: los spinners de carga son indicadores de progreso esenciales
     (comunican estado, no son decorativos). Forzarlos a 1 iteración de 0.01ms
     los congela y el usuario pierde la única señal de "está cargando".
     WCAG 2.3.3 apunta a movimiento decorativo/parallax, no a esto.
     Los selectores [style*=...] cubren los spinners con animación inline. */
  .loader-ring, .loader-spinner, .moodle-loader-spinner, .login-spinner,
  .spin-icon, #progressChip i,
  [style*="animation:spin"], [style*="animation: spin"] {
    animation-duration: 1s !important;
    animation-iteration-count: infinite !important;
  }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE — tablet/móvil (≤ 768px)
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {

    /* Topbar: permite que el contenido se envuelva */
    .topbar {
        flex-wrap: wrap;
        height: auto;
        padding: 8px 1rem;
        gap: 6px;
    }

    /* Zona derecha del topbar: desbordamiento horizontal en vez de colapsar */
    .topbar-right,
    .topbar-actions {
        flex-wrap: wrap;
        gap: 6px;
        overflow-x: auto;
    }

    /* Ocultar etiquetas de texto en botones icono+texto → solo icono en móvil */
    .btn-text {
        display: none;
    }

    /* Sidebar: reducir ancho o colapsar si ocupa layout fijo */
    .sidebar {
        width: 200px;
        min-width: 200px;
    }

    /* Contenedores principales: reducir padding lateral */
    .main,
    .main-wrap,
    .main-content {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    /* Cards: menos padding */
    .card-dark {
        padding: 1rem;
    }

    /* Grids con columnas fijas: forzar 1 columna */
    [style*="grid-template-columns"],
    .grid,
    .row-grid {
        grid-template-columns: 1fr !important;
    }

    /* Toasts: ajustar posición y ancho */
    .toast-stack {
        right: 8px;
        left: 8px;
    }
    .toast-item {
        min-width: unset;
        width: 100%;
    }

    /* Banner de cookies: apilar verticalmente */
    .cookie-consent-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 12px 16px;
    }
    .cookie-consent-actions {
        width: 100%;
        justify-content: flex-end;
    }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE — móvil pequeño (≤ 480px)
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 480px) {

    /* Topbar: apilar marca y controles en columna */
    .topbar {
        flex-direction: column;
        align-items: flex-start;
        padding: 8px 0.75rem;
    }

    .topbar-right,
    .topbar-actions {
        width: 100%;
        justify-content: flex-end;
    }

    /* Reducir fuentes base */
    body {
        font-size: 0.9rem;
    }

    .page-title {
        font-size: 1.1rem;
    }

    .page-subtitle {
        font-size: 0.78rem;
    }

    /* Padding mínimo en contenedores */
    .main,
    .main-wrap,
    .main-content {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }

    /* Cards: padding mínimo */
    .card-dark {
        padding: 0.75rem;
    }

    /* Sidebar: colapsar totalmente — el contenido ocupa todo el ancho */
    .sidebar {
        width: 100%;
        min-width: unset;
    }

    /* Botones: reducir padding para que quepan en pantallas estrechas */
    .btn-ghost,
    .btn-primary,
    .btn-prim {
        padding: 5px 10px;
        font-size: 0.8rem;
    }

    /* Botones solo icono: tamaño mínimo accesible (44px = touch target WCAG) */
    .btn-icon {
        width: 44px;
        height: 44px;
        padding: 0;
    }

    /* Badge de usuario: ocultar nombre si no cabe */
    .user-badge {
        padding: 4px 8px;
        font-size: 0.78rem;
    }
}

/* ═══════════════════════════════════════════════════════════
   LOGIN — lenguaje "hoja técnica": planos sólidos, retícula,
   marcas de registro en esquinas y acentos en mono.
   Sin degradés (decisión de marca, compartida con dashboard).
   ═══════════════════════════════════════════════════════════ */
.login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
}

/* Retícula de cruces compartida entre login, dashboard y error (antes duplicada
   como `body::before` inline en cada template — .brand-mesh-bg es el hook genérico) */
.login-body::before,
.brand-mesh-bg::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: var(--brand-mesh);
    background-size: var(--brand-mesh-size);
    pointer-events: none;
}

/* Eje vertical de composición: línea sólida que pasa por detrás
   de la card, desplazada a la izquierda (asimetría deliberada) */
.login-body::after {
    content: '';
    position: fixed;
    top: 0;
    bottom: 0;
    left: calc(50% - 243px); /* 28px por fuera del borde izquierdo de la card (max-width 430px) */
    width: 1px;
    background: var(--border);
    pointer-events: none;
}

.login-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius); /* mismo radio que el resto de cards de la app */
    padding: 2.75rem 2.5rem;
    width: 95%;
    max-width: 430px;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: fadeUp .4s ease;
}

/* Marcas de registro en esquinas opuestas (plano técnico) */
.login-card::before,
.login-card::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    pointer-events: none;
}
.login-card::before { top: -8px;    left: -8px;   border-top: 2px solid var(--accent);    border-left: 2px solid var(--accent);  border-top-left-radius: 6px; }
.login-card::after  { bottom: -8px; right: -8px;  border-bottom: 2px solid var(--accent); border-right: 2px solid var(--accent); border-bottom-right-radius: 6px; }

/* ── Brand ── */
.login-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: var(--space-8);
}

.login-brand-dot {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: #fff;
    /* doble marco plano en lugar de glow/degradé */
    box-shadow: 0 0 0 3px var(--surface), 0 0 0 4px var(--accent);
}

.login-brand-text {
    font-family: var(--mono);
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: .24em;
    line-height: 1.2;
    color: var(--text);
}

.login-brand-sub {
    font-size: var(--fs-caption);
    color: var(--muted);
    margin-top: 2px;
}

/* ── Título ── */
.login-title {
    font-size: var(--fs-h1);
    font-weight: 700;
    letter-spacing: -.3px;
    margin-bottom: .5rem;
}

/* Subrayado sólido corto: reemplaza la barra superior en degradé */
.login-title::after {
    content: '';
    display: block;
    width: 30px;
    height: 3px;
    background: var(--accent);
    margin-top: 10px;
}

.login-subtitle {
    font-size: var(--fs-body);
    color: var(--muted);
    margin-bottom: var(--space-8);
    line-height: 1.4;
}

/* ── Campos: input segmentado (compartimento de icono con divisor) ── */
.login-field { margin-bottom: 1.3rem; }

.login-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden; /* recorta el compartimento del icono al radio redondeado */
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-input-wrapper:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--input-focus-ring);
}

.login-input-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    align-self: stretch;
    border-right: 1px solid var(--border);
    color: var(--muted);
    pointer-events: none;
    flex-shrink: 0;
    transition: color var(--transition-fast);
}

.login-input-wrapper:focus-within .login-input-icon { color: var(--accent); }

.login-input-wrapper input {
    width: 100%;
    background: transparent;
    border: none;
    color: var(--text);
    padding: 12px 14px;
    font-family: var(--font);
    font-size: var(--fs-body);
    outline: none;
}

.login-field.password-field input { padding-right: 48px; }

.login-toggle-password {
    position: absolute;
    right: 6px;
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 8px;
    border-radius: 6px;
    transition: color var(--transition-fast), background-color var(--transition-fast);
    z-index: 2;
}

.login-toggle-password:hover {
    color: var(--text);
    background: var(--border);
}

.login-toggle-password svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Botón principal ── */
.login-btn {
    width: 100%;
    background: var(--accent);
    border: none;
    color: #fff;
    border-radius: 8px;
    padding: 12px;
    font-family: var(--font);
    font-size: var(--fs-body);
    font-weight: 600;
    letter-spacing: .03em;
    cursor: pointer;
    margin-top: .5rem;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.login-btn:hover    { opacity: .88; }
.login-btn:active   { transform: scale(.98); }
.login-btn:disabled { opacity: .5; cursor: not-allowed; }

.login-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin .7s linear infinite;
    display: none;
}

/* ── Mensajes y pie ── */
.login-error {
    background: rgba(239,68,68,.1);
    border: 1px solid rgba(239,68,68,.3);
    border-left: 3px solid var(--red);
    color: var(--red);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: .84rem;
    margin-top: var(--space-4);
    display: none;
    animation: fadeIn .2s ease;
}

.login-footer-note {
    text-align: center;
    margin-top: var(--space-8);
    font-size: .75rem;
    color: var(--muted);
}

.login-consulta {
    margin-top: 1.2rem;
    border-top: 1px solid var(--border);
    padding-top: var(--space-4);
    text-align: center;
}

.login-consulta p {
    font-size: .75rem;
    color: var(--muted);
    margin-bottom: .6rem;
}

.login-consulta-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--mono);
    font-size: var(--fs-caption);
    color: var(--accent);
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 6px 14px;
    transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.login-consulta-link:hover,
.login-consulta-link:focus-visible {
    border-color: var(--accent);
    background: var(--surface2);
}

/* ── Banner de mantenimiento ── */
.login-mantenimiento {
    background: rgba(245,158,11,.1);
    border: 1px solid rgba(245,158,11,.35);
    border-left: 3px solid var(--yellow);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 10px;
    align-items: flex-start;
}
.login-mantenimiento svg { flex-shrink: 0; margin-top: 1px; }
.login-mantenimiento-titulo { font-size: .85rem; font-weight: 600; color: var(--yellow); margin-bottom: 2px; }
.login-mantenimiento-texto  { font-size: var(--fs-caption); color: var(--muted); line-height: 1.4; }

/* ── Botón de tema flotante en páginas sin topbar (login, error) ── */
.theme-toggle-fixed {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 999;
}

/* ── Responsive login ── */
@media (max-width: 560px) {
    /* el eje vertical no cabe cuando la card ocupa casi todo el ancho */
    .login-body::after { display: none; }
}

@media (max-width: 480px) {
    .login-card { padding: 2rem 1.5rem; }
    .login-title { font-size: 1.4rem; }
    .login-brand-dot { width: 40px; height: 40px; }
}

@media (max-width: 360px) {
    .login-body { padding: var(--space-2); }
    .login-card { padding: 1.5rem 1rem; }
    .login-title { font-size: 1.2rem; }
    .login-brand { margin-bottom: 1.5rem; }
    .login-subtitle { margin-bottom: 1.4rem; }
}