:root {
    /* Paleta de Colores Senior (Bloque DASH-1 429) */
    --success-color: #2ecc71; /* Verde Success */
    --danger-color: #e74c3c;  /* Rojo Danger */
    --warning-color: #f1c40f; /* Amarillo/Naranja Warning */
    --primary-color: #3498db; /* Azul Primary/Info */
    --info-color: #3498db;    /* Azul Primary/Info */
    --dark-color: #2c3e50;    /* Azul Marino Oscuro Dark */

    /* Tipografía Senior (Bloque DASH-1 435-439) */
    --font-family-base: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    --font-size-lg: 1.25rem;  /* 20px */
    --font-size-base: 1rem;    /* 16px */
    --font-size-sm: 0.85rem;   /* 13.6px */
    --font-size-xs: 0.75rem;   /* 12px */

    /* Espaciado y Bordes */
    --border-radius-sm: 2px;
    --border-radius-md: 4px;
    --border-radius-lg: 6px;
}

/* --- Scroll To Top Button --- */
#scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 45px;
    height: 45px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2147483647; /* MAX Z-INDEX POSIBLE EN 32 BITS */
    opacity: 0;
    visibility: hidden;
    pointer-events: auto !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    transform: translateY(20px);
}

#scroll-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scroll-to-top:hover {
    background-color: #2980b9;
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

#scroll-to-top i {
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

#scroll-to-top:hover i {
    transform: translateY(-2px);
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    color: var(--dark-color);
    margin: 0;
    padding: 0;
    background-color: #f4f7f6;
}

/* Títulos de Sección Senior (Bloque DASH-1 406-409) */
.section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #000;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 8px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.dark .section-title {
    color: #ffffff;
}

.section-title i,
.section-title svg.lucide {
    color: var(--primary-color);
}

/* Variante reducida — para paneles laterales, drawers y tarjetas internas */
.section-title-xs {
    font-size: var(--font-size-xs); /* 12px */
    font-weight: 800;
    gap: 6px;
    border-bottom-width: 1px;
    padding-bottom: 5px;
    margin-bottom: 12px;
    letter-spacing: .08em;
}

/* --- Estilo de Inputs y Wrappers (styles.html) --- */

/* Label: idéntico al de los filtros de tareas */
.input-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 10px;
    font-weight: 900;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: .08em;
    margin-bottom: 6px;
}

/* Wrapper: replica el aspecto visual de .filter-dropdown-trigger */
.input-wrapper {
    width: 100%;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0 0.75rem;
    min-height: 40px;
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: var(--border-radius-lg);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.dark .input-wrapper {
    background-color: #1e293b;
    border-color: #475569;
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, .12);
}

.dark .input-wrapper:focus-within {
    border-color: var(--primary-color);
}

.input-wrapper.is-disabled {
    opacity: 0.5;
    background-color: #f8fafc;
    cursor: not-allowed;
}

.dark .input-wrapper.is-disabled {
    opacity: 0.7;
    background-color: #1e293b;
    border-color: #334155;
}

/* Botón X para limpiar el campo de estimación — mismo estilo que input-number-btn */
.estimation-clear-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background-color: #e2e8f0;
    color: #64748b;
    cursor: pointer;
    flex-shrink: 0;
    margin-left: auto;
    transition: background-color 0.15s, transform 0.1s;
}
.estimation-clear-btn:hover { background-color: #fecaca; color: #ef4444; transform: scale(1.1); }
.estimation-clear-btn:active { transform: scale(0.94); }
.estimation-clear-btn i,
.estimation-clear-btn svg.lucide { width: 11px; height: 11px; flex-shrink: 0; }
.dark .estimation-clear-btn { background-color: #475569; color: #94a3b8; }
.dark .estimation-clear-btn:hover { background-color: #7f1d1d; color: #fca5a5; }

/* Icono izquierdo dentro del wrapper */
.input-wrapper > i, .input-wrapper > svg.lucide {
    color: var(--primary-color);
    width: 18px;
    height: 18px;
    text-align: center;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* ── input[type=date]: el indicador del calendario cubre todo el campo ─────── */
/* Así clic en cualquier parte del input abre el picker, sin cambiar el aspecto */
.input-wrapper input[type="date"] {
    position: relative;
    cursor: pointer;
}

.input-wrapper input[type="date"]::-webkit-calendar-picker-indicator {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    opacity: 0;
    cursor: pointer;
}

/* El input/textarea real: sin borde ni fondo propio */
.input-wrapper > input,
.input-wrapper > textarea {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    font-size: 11px; /* Unificado con el tamaño de los filter-dropdown trigger */
    font-family: var(--font-family-base);
    color: var(--dark-color);
    padding: 0 0.5rem 0 0;
    min-width: 0;
    font-weight: 700;
}

/* Forzar tamaño y tipografía en inputs de fecha para navegadores WebKit */
.input-wrapper > input[type="date"]::-webkit-datetime-edit,
.input-wrapper > input[type="date"]::-webkit-datetime-edit-fields-wrapper,
.input-wrapper > input[type="date"]::-webkit-datetime-edit-text,
.input-wrapper > input[type="date"]::-webkit-datetime-edit-month-field,
.input-wrapper > input[type="date"]::-webkit-datetime-edit-day-field,
.input-wrapper > input[type="date"]::-webkit-datetime-edit-year-field {
    font-size: 11px !important; /* Forzar el tamaño unificado */
    font-family: var(--font-family-base) !important;
    font-weight: 700 !important;
    padding: 0 !important;
    margin: 0 !important;
}

/* Resetear el padding interno específico de Chrome/Edge para fechas */
.input-wrapper > input[type="date"] {
    min-height: auto !important;
    padding: 0 !important;
    line-height: normal !important;
}

.dark .input-wrapper > input,
.dark .input-wrapper > textarea {
    color: #f1f5f9;
}

.input-wrapper > input::placeholder,
.input-wrapper > textarea::placeholder {
    color: #94a3b8;
    font-weight: 600;
}

.input-wrapper > input.no-uppercase::placeholder {
    text-transform: none;
    letter-spacing: normal;
    font-weight: 400;
}

/* ── Centro del topbar (buscador) ───────────────────────────────── */
.topbar-center {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 16px;
    min-width: 0;
}
.topbar-center .input-wrapper {
    max-width: 420px;
    min-height: 36px;
}

/* ── Buscador de topbar ─────────────────────────────────────────── */
.topbar-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0 0.875rem;
    min-height: 38px;
    width: 100%;
    max-width: 28rem;
    background-color: #f1f5f9;
    border: 1.5px solid #e2e8f0;
    border-radius: var(--border-radius-lg);
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.2s;
}

.dark .topbar-search {
    background-color: #1e293b;
    border-color: #334155;
}

.topbar-search:focus-within {
    background-color: #ffffff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, .12);
}

.dark .topbar-search:focus-within {
    background-color: #0f172a;
    border-color: var(--primary-color);
}

.topbar-search > i {
    color: #94a3b8;
    flex-shrink: 0;
    transition: color 0.2s;
    width: 16px;
    height: 16px;
}

.topbar-search:focus-within > i {
    color: var(--primary-color);
}

.topbar-search > input {
    border: none;
    outline: none;
    box-shadow: none;
    background: transparent;
    width: 100%;
    font-size: 0.875rem;
    color: inherit;
}

.topbar-search > input::placeholder {
    color: #94a3b8;
    font-weight: 400;
    text-transform: none;
    letter-spacing: normal;
}

.input-wrapper > input:disabled {
    cursor: not-allowed;
}

.dark .input-wrapper > input:disabled {
    color: #94a3b8 !important;
}

/* --- Checkboxes y Radios Globales --- */
input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--primary-color);
    cursor: pointer;
    transition: all 0.2s ease;
}

.dark input[type="checkbox"],
.dark input[type="radio"] {
    color-scheme: dark;
    background-color: #0f172a;
    border-color: #334155;
}

/* CALENDARIO MENSUAL */
#monthly-calendar {
    background-color: #ffffff;
    border-color: #e2e8f0;
}

#monthly-calendar-header {
    background-color: #f8fafc;
    border-bottom-color: #e2e8f0;
}

.calendar-day {
    background-color: #ffffff;
    border-color: #f1f5f9;
}

.calendar-day.is-weekend {
    background-color: rgba(248, 250, 252, 0.8);
}

.calendar-day-empty {
    background-color: rgba(248, 250, 252, 0.5);
    border-color: #f1f5f9;
}

.task-calendar-item {
    background-color: rgba(248, 250, 252, 0.5);
    border-color: #f1f5f9;
}

/* FORZAR MODO OSCURO EN CALENDARIO MENSUAL */
.dark #monthly-calendar {
    background-color: #1e293b !important;
    border-color: #334155 !important;
}

.dark #monthly-calendar-header {
    background-color: #0f172a !important;
    border-bottom-color: #334155 !important;
}

.dark .calendar-day {
    background-color: #1e293b !important;
    border-color: #334155 !important;
}

.dark .calendar-day.is-weekend {
    background-color: #0f172a !important;
}

.dark .calendar-day-empty {
    background-color: #0f172a !important;
    border-color: #334155 !important;
}

.dark .calendar-day span.text-base {
    color: #f1f5f9 !important;
}

.dark .calendar-day.is-weekend span.text-base {
    color: #475569 !important;
}

.dark .task-calendar-item {
    background-color: #0f172a !important;
    border-color: #334155 !important;
}

.dark .task-calendar-item span {
    color: #f1f5f9 !important;
}

.dark .task-calendar-item:hover {
    background-color: #1e293b !important;
    border-color: var(--primary-color) !important;
}

/* Forzar fondo de secciones principales en modo oscuro */
.dark #worker-tasks-section,
.dark .flex-1.bg-white,
.dark main.bg-white {
    background-color: #0f172a !important;
}

/* Corrección de celdas de tablas en hover */
.dark table.dataTable.hover tbody tr:hover td,
.dark table.dataTable.display tbody tr:hover td,
.dark table.dt-example tbody tr:hover td {
    background-color: transparent !important;
}

/* Botones activos en modo oscuro (Period Picker, View Mode, Worker Filters) */
.dark .view-mode-btn.bg-white,
.dark .period-filter-btn.bg-white,
.dark .worker-filter-btn.bg-white,
.dark .btn-outline.bg-white {
    background-color: #334155 !important;
    color: var(--primary-color) !important;
    border-color: rgba(52, 152, 219, 0.3) !important;
}

.dark .view-mode-btn.text-slate-400:hover,
.dark .period-filter-btn.text-slate-400:hover,
.dark .worker-filter-btn.text-slate-400:hover {
    background-color: rgba(51, 65, 85, 0.5) !important;
    color: #f1f5f9 !important;
}

/* Textarea dentro de wrapper */
.input-wrapper.is-textarea {
    align-items: flex-start;
    padding: 0.6rem 0.75rem;
}

.input-wrapper.is-textarea > i {
    margin-top: 2px;
}

.input-wrapper > textarea {
    resize: vertical;
    min-height: 7.5em;
    line-height: 1.6;
}

/* ── input[type=number]: spinner nativo oculto + controles custom ──────────── */
.input-wrapper input[type="number"]::-webkit-outer-spin-button,
.input-wrapper input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}
.input-wrapper input[type="number"] {
    -moz-appearance: textfield;
}
.input-number-wrapper {
    padding-right: 0.3rem;
    gap: 0.4rem;
}
.input-number-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: none;
    background-color: #e2e8f0;
    color: #64748b;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.15s, transform 0.1s;
}
.input-number-btn:hover {
    background-color: #cbd5e1;
    transform: scale(1.1);
}
.input-number-btn:active {
    transform: scale(0.94);
}
.input-number-btn > i,
.input-number-btn > svg.lucide {
    width: 11px;
    height: 11px;
    color: #64748b;
    flex-shrink: 0;
}
.dark .input-number-btn {
    background-color: #475569;
    color: #94a3b8;
}
.dark .input-number-btn:hover {
    background-color: #334155;
}
.dark .input-number-btn > i,
.dark .input-number-btn > svg.lucide {
    color: #94a3b8;
}

/* --- Step Indicator (styles.html) --- */
.step-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.step-dot {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 800;
    flex-shrink: 0;
}

.step-dot.done {
    background: rgba(46, 204, 113, .2);
    color: var(--success-color);
}

.step-dot.current {
    background: var(--primary-color);
    color: #ffffff;
}

.step-dot.pending {
    background: #f1f5f9;
    color: #94a3b8;
    border: 2px solid #e2e8f0;
}

.step-label-done {
    font-size: 11px;
    font-weight: 700;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: .1em;
}

.step-label-current {
    font-size: 11px;
    font-weight: 900;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: .1em;
}

.step-connector {
    flex: 1;
    height: 2px;
    background: #e2e8f0;
}

.step-connector.done {
    background: var(--primary-color);
}

/* --- Upload Zone (styles.html) --- */
.upload-zone {
    border: 2px dashed #cbd5e1;
    border-radius: 10px;
    padding: 28px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s;
}

.upload-zone:hover {
    border-color: var(--primary-color);
}

.upload-zone i {
    font-size: 2rem;
    color: #cbd5e1;
    display: block;
    margin-bottom: 8px;
    transition: color 0.2s;
}

.upload-zone:hover i {
    color: var(--primary-color);
}

.upload-zone p {
    font-size: 12px;
    font-weight: 700;
    color: #94a3b8;
    margin: 0;
}

.upload-zone p span {
    color: var(--primary-color);
    text-decoration: underline;
}

.upload-zone.drag-over {
    border-color: var(--primary-color);
    background-color: color-mix(in srgb, var(--primary-color) 6%, transparent);
}

.upload-zone.drag-over i {
    color: var(--primary-color);
}

.w-150 { width: 150px; }
.w-210 { width: 210px; }

/* Animaciones */
@keyframes dropdownFadeIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

.custom-scrollbar::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: #e2e8f0;
    border-radius: 4px;
}

/* Dark Mode Scrollbar Support */
.dark ::-webkit-scrollbar-track {
    background: #0f172a;
}
.dark ::-webkit-scrollbar-thumb {
    background: #334155;
    border: 2px solid #0f172a;
}
.dark ::-webkit-scrollbar-thumb:hover {
    background: #475569;
}

.dark .custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.dark .custom-scrollbar::-webkit-scrollbar-thumb {
    background: #334155;
}
.dark .custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: #475569;
}


/* --- Iconos Lucide: Reducción global del 25% (VCP) --- */
svg.lucide, i[data-lucide] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    vertical-align: middle;
    flex-shrink: 0;
}

svg.lucide,
i[data-lucide] svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.5; /* Mayor grosor para mejor visibilidad en tamaños reducidos */
}

/* Excepciones: Títulos, Topbar y Modal Headers (se mantienen en 24px) */
.section-title svg.lucide,
.section-title i[data-lucide] svg,
.topbar svg.lucide,
.topbar i[data-lucide] svg,
.modal-header h3 svg.lucide,
.modal-header h3 i[data-lucide] svg,
.drawer-header h3 svg.lucide,
.drawer-header h3 i[data-lucide] svg {
    width: 24px;
    height: 24px;
    stroke-width: 2;
}

/* Drawer: header y botón de cierre */
.drawer-header {
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.drawer-close-btn {
    background: transparent;
    border: none;
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    color: #94a3b8;
    line-height: 0;
    transition: background .15s ease, color .15s ease;
}

.drawer-close-btn:hover {
    background: #e2e8f0;
    color: #334155;
}

.drawer-close-btn svg.lucide,
.drawer-close-btn i[data-lucide] svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

/* Sidebar Icons: Reducción específica (16px) */
#main-sidebar svg.lucide,
#main-sidebar i[data-lucide] svg {
    width: 16px;
    height: 16px;
    stroke-width: 2.5;
}

/* Ajustes específicos para elementos muy pequeños */
.badge-sm svg.lucide,
.badge-sm i[data-lucide] svg,
.btn-sm svg.lucide,
.btn-sm i[data-lucide] svg {
    width: 14px;
    height: 14px;
}

/* Animaciones para iconos (Compatibilidad con clases FA-like) */
@keyframes fa-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.fa-spin {
    animation: fa-spin 2s infinite linear;
    display: inline-block;
}

.fa-pulse {
    animation: fa-spin 1s infinite steps(8);
    display: inline-block;
}

@keyframes fa-bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

.fa-bounce {
    animation: fa-bounce 2s infinite;
    display: inline-block;
}

@keyframes fa-beat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.25); }
}

.fa-beat {
    animation: fa-beat 1s infinite;
    display: inline-block;
}

/* ── split-layout: Layout 75% / 25% responsive con panel aside colapsable en móvil ──
 *
 * Estructura HTML requerida:
 *   <div class="split-layout [split-layout--fixed]">
 *     <div class="split-main custom-scrollbar">…contenido principal…</div>
 *     <div class="split-aside">
 *       <button class="split-aside-toggle" type="button">
 *         <span>…label + icono…</span>
 *         <i data-lucide="chevron-down" class="split-aside-chevron"></i>
 *       </button>
 *       <div class="split-aside-content custom-scrollbar">…panel lateral…</div>
 *     </div>
 *   </div>
 *
 * Variante --fixed: paneles con scroll independiente (ej: /tasks/new).
 * Sin variante:     scroll de página global (ej: /tasks/{uuid}).
 * ────────────────────────────────────────────────────────────────────────── */

/* Grid base */
.split-layout {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 1.25rem; /* gap-5 */
}

/* Variante con altura fija y scroll por columna */
.split-layout--fixed {
    flex: 1;
    min-height: 0;
    overflow: hidden;
}
.split-layout--fixed .split-main {
    height: 100%;
    overflow-y: auto;
}
.split-layout--fixed .split-aside {
    height: 100%;
    overflow: hidden;
}
.split-layout--fixed .split-aside-content {
    height: 100%;
    overflow-y: auto;
}

/* Panel principal */
.split-main {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-width: 0; /* Impide que el grid item se expanda más allá de su track */
}

/* Contenedor del panel lateral */
.split-aside {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Botón toggle — SOLO visible en móvil/tablet (<1024px) */
.split-aside-toggle {
    display: none;
    width: 100%;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.07);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 800;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    user-select: none;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}
.split-aside-toggle:hover {
    background-color: #f8fafc;
    border-color: #cbd5e1;
}
.dark .split-aside-toggle {
    background-color: #0f172a;
    border-color: #1e293b;
    color: #94a3b8;
}
.dark .split-aside-toggle:hover {
    background-color: #1e293b;
    border-color: #334155;
}

/* Chevron: rota cuando el aside está abierto */
.split-aside-chevron {
    transition: transform 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
}
.split-aside.is-open .split-aside-chevron {
    transform: rotate(180deg);
}

/* Panel de contenido lateral */
.split-aside-content {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.07);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.dark .split-aside-content {
    background-color: #0f172a;
    border-color: #1e293b;
}

/* ── Responsive: aside encima del main cuando el contenedor es < 1024px ──
 * Gestionado por ResizeObserver en layout.js — funciona también en demos con
 * resize manual, sin depender del ancho del viewport. */
.split-layout.is-narrow {
    grid-template-columns: 1fr;
}

/* Variante fixed: pierde scroll por columna en modo estrecho */
.split-layout--fixed.is-narrow {
    flex: none;
    min-height: unset;
    overflow: visible;
}
.split-layout.is-narrow.split-layout--fixed .split-main,
.split-layout.is-narrow.split-layout--fixed .split-aside,
.split-layout.is-narrow.split-layout--fixed .split-aside-content {
    height: auto;
    overflow-y: visible;
}

/* Invertir orden: aside arriba, main abajo */
.split-layout.is-narrow .split-main  { order: 2; }
.split-layout.is-narrow .split-aside { order: 1; }

/* Mostrar el toggle */
.split-layout.is-narrow .split-aside-toggle { display: flex; }

/* Contenido colapsado por defecto */
.split-layout.is-narrow .split-aside-content {
    display: none;
    margin-top: 0.5rem;
}

/* Abierto: mostrar contenido */
.split-layout.is-narrow .split-aside.is-open .split-aside-content {
    display: flex;
}

/* ── attach-grid: tarjetas de adjuntos (upload preview y listados) ──────────
 *
 * Estructura HTML:
 *   <div class="attach-grid">
 *     <div class="attach-card [attach-card--loading] [attach-card--error]">
 *       <a|div class="attach-card-inner">
 *         <div class="attach-card-thumb">
 *           <img src="…">  o  <i data-lucide="file">
 *         </div>
 *         <span class="attach-card-name">nombre.pdf</span>
 *         <span class="attach-card-size">120 KB</span>   (opcional)
 *       </a|div>
 *       <button class="attach-card-remove">
 *         <i data-lucide="x"></i>
 *       </button>
 *     </div>
 *   </div>
 * ────────────────────────────────────────────────────────────────────────── */

.attach-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

/* Tarjeta individual */
.attach-card {
    position: relative;
    width: 96px;
    flex-shrink: 0;
}

/* Área clickable */
.attach-card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem;
    border-radius: 0.75rem;
    border: 1px solid #e2e8f0;
    background-color: #f8fafc;
    text-align: center;
    text-decoration: none;
    transition: border-color 0.15s ease, background-color 0.15s ease;
    cursor: pointer;
    width: 100%;
    box-sizing: border-box;
}
.attach-card-inner:hover {
    border-color: rgba(52, 152, 219, 0.5);
    background-color: rgba(52, 152, 219, 0.05);
}
.dark .attach-card-inner {
    border-color: #1e293b;
    background-color: #1e293b;
}
.dark .attach-card-inner:hover {
    border-color: rgba(52, 152, 219, 0.4);
    background-color: rgba(52, 152, 219, 0.08);
}

/* Miniatura */
.attach-card-thumb {
    width: 80px;
    height: 56px;
    border-radius: 0.5rem;
    overflow: hidden;
    background-color: rgba(52, 152, 219, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.attach-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.attach-card-thumb .lucide,
.attach-card-thumb svg {
    width: 22px;
    height: 22px;
    color: var(--primary-color);
}

/* Nombre del archivo */
.attach-card-name {
    font-size: 10px;
    font-weight: 600;
    color: #64748b;
    width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.3;
}
.dark .attach-card-name { color: #94a3b8; }

/* Tamaño / subtítulo */
.attach-card-size {
    font-size: 9px;
    font-weight: 700;
    color: #94a3b8;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Botón eliminar: círculo rojo arriba-derecha, visible en hover */
.attach-card-remove {
    position: absolute;
    top: -8px;
    right: -8px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: #ef4444;
    color: #ffffff;
    border: 2px solid #ffffff;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
    z-index: 10;
    padding: 0;
    transition: background-color 0.15s ease;
}
.attach-card-remove:hover { background-color: #dc2626; }
.dark .attach-card-remove { border-color: #0f172a; }
.attach-card:hover .attach-card-remove { display: flex; }
.attach-card-remove .lucide,
.attach-card-remove svg {
    width: 10px;
    height: 10px;
}

/* Estado: cargando — shimmer en thumbnail + nombre */
@keyframes attach-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
.attach-card--loading .attach-card-thumb {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
    background-size: 200% 100%;
    animation: attach-shimmer 1.4s infinite linear;
}
.dark .attach-card--loading .attach-card-thumb {
    background: linear-gradient(90deg, #1e293b 25%, #334155 50%, #1e293b 75%);
    background-size: 200% 100%;
}
.attach-card--loading .attach-card-name {
    background-color: #e2e8f0;
    border-radius: 3px;
    color: transparent;
    user-select: none;
}
.dark .attach-card--loading .attach-card-name {
    background-color: #334155;
}

/* Estado: error */
.attach-card--error .attach-card-thumb {
    background-color: rgba(231, 76, 60, 0.08);
}
.attach-card--error .attach-card-thumb .lucide,
.attach-card--error .attach-card-thumb svg {
    color: var(--danger-color);
}
.attach-card--error .attach-card-name { color: var(--danger-color); }

/* ── two-col: 2 columnas que colapsan a 1 cuando el contenedor < 350px ── */
.two-col {
    container-type: inline-size;
}
.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 0.5rem;
    row-gap: 1rem;
}
@container (max-width: 349px) {
    .two-col-grid {
        grid-template-columns: 1fr;
    }
}