/* Tema minimalista de Administración de Inventarios.
   Se carga después de dashboard.css y Bootstrap: las plantillas portadas conservan su
   marcado, y aquí se unifica su apariencia. Los !important vencen estilos en línea. */
:root {
    --primary-color: #E8261E;
    --primary-dark: #b81c16;
    --bg-body: #f7f7f8;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #a1a1aa;
    --border-color: #e4e4e7;
    --sidebar-width: 248px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --shadow-sm: none;
    --shadow-md: 0 1px 2px rgb(0 0 0 / 0.04);
    --shadow-lg: 0 12px 32px rgb(0 0 0 / 0.12);
    --bs-primary: #E8261E;
    --bs-primary-rgb: 232, 38, 30;
    --bs-body-font-family: var(--font-family);
}

body {
    background: var(--bg-body);
    color: var(--text-primary);
    font-size: 14px;
}

/* --- Estructura --- */
.sidebar {
    border-right: 1px solid var(--border-color);
    box-shadow: none;
}

.sidebar-header {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 0;
    overflow: hidden;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand img {
    width: auto;
    max-width: 128px;
    height: 32px;
    border-radius: 0;
    box-shadow: none;
    object-fit: contain;
}

.brand span {
    margin-left: 0;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.sidebar-nav {
    padding: 0.25rem 0.75rem;
}

.sidebar-nav ul {
    padding: 0;
}

.sidebar-nav .section-title-nav {
    padding: 0.75rem 0.75rem 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.sidebar-nav li {
    margin: 0 0 2px;
    padding: 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    background: transparent;
    box-shadow: none;
}

.sidebar-nav a i {
    width: 16px;
    margin: 0;
    font-size: 0.8125rem;
    text-align: center;
    color: var(--text-muted);
}

.sidebar-nav a:hover {
    background: #f4f4f5;
    color: var(--text-primary);
    transform: none;
}

.sidebar-nav li.active a {
    background: #fef2f2;
    color: var(--primary-color);
    box-shadow: none;
}

.sidebar-nav li.active a i {
    color: var(--primary-color);
}

.sidebar-footer {
    padding: 0.75rem 1.25rem 1rem;
    border-top: 1px solid var(--border-color);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.user-avatar {
    flex: none;
    width: 30px;
    height: 30px;
    font-size: 0.75rem;
    background: #f4f4f5;
    color: var(--text-secondary);
}

.user-details {
    min-width: 0;
}

.user-name,
.user-role {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-name {
    font-size: 0.8125rem;
    font-weight: 500;
}

.user-role {
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.logout-link {
    display: block;
    margin-top: 0.625rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-decoration: none;
}

.logout-link:hover {
    color: var(--primary-color);
}

.top-bar {
    height: 56px;
    padding: 0 2rem;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    box-shadow: none;
}

.page-title h1 {
    margin: 0;
    font-size: 1.0625rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.content-wrapper {
    padding: 1.5rem 2rem;
}

.mobile-menu-btn,
.mobile-bottom-nav,
.sidebar-overlay {
    display: none;
}

.nav-loading {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    align-items: center;
    justify-content: center;
    background: rgb(255 255 255 / 0.7);
}

.nav-loading.visible {
    display: flex;
}

.nav-loading .spinner-border {
    width: 1.75rem;
    height: 1.75rem;
    border-width: 2px;
    color: var(--primary-color);
}

/* --- Tablas --- */
.table-container,
.table-scroll-container {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: none;
}

.modern-table th {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    background: #fafafa;
}

.modern-table td {
    font-size: 0.8125rem;
    border-color: #f4f4f5;
}

/* --- Tarjetas y encabezados con degradado de las plantillas portadas --- */
.card,
.stat-card,
.summary-card,
.filters-section {
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: none !important;
}

.stat-card:hover,
.summary-card:hover {
    transform: none !important;
    box-shadow: none !important;
}

.card[style*="linear-gradient"],
.card-body[style*="linear-gradient"],
.card-header[style*="linear-gradient"] {
    background: #fff !important;
}

/* --- Controles --- */
.btn {
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    box-shadow: none !important;
}

.btn:hover {
    transform: none !important;
}

.btn[style*="linear-gradient"] {
    background: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: #fff !important;
}

.btn-primary {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    background: var(--primary-dark) !important;
    border-color: var(--primary-dark) !important;
}

.form-control,
.form-select {
    border-radius: 6px;
    border-color: var(--border-color);
    font-size: 0.8125rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #a1a1aa;
    box-shadow: 0 0 0 3px rgb(0 0 0 / 0.05);
}

.tabs-container {
    border-bottom: 1px solid var(--border-color);
}

.tab-button {
    font-size: 0.8125rem;
    font-weight: 500;
    box-shadow: none !important;
}

/* Un solo acento: las plantillas portadas traen un color distinto por módulo. */
.tab-button:hover,
.tab-button.active {
    color: var(--primary-color) !important;
    background: transparent !important;
}

.tab-button.active {
    border-bottom-color: var(--primary-color) !important;
}

.nav-pills .nav-link {
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500 !important;
    color: var(--text-secondary);
    box-shadow: none !important;
}

.nav-pills .nav-link.active {
    color: var(--primary-color) !important;
    background: #fef2f2 !important;
}

.btn[style*="#6610f2"] {
    background: var(--primary-color) !important;
    color: #fff !important;
}

/* Carbón y no blanco: varios valores del encabezado fijan color claro con !important en línea. */
.modal-header[style*="linear-gradient"] {
    background: #18181b !important;
}

.tab-button.active::after {
    background: var(--primary-color) !important;
}

/* --- Modales --- */
.modal-content {
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

/* --- Mermas --- */
#modalMerma .modal-header {
    align-items: flex-start;
    color: var(--text-primary);
    background: #fff;
    border-bottom: 1px solid var(--border-color);
}

#modalMerma .modal-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.mermas-barra {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1rem;
}

.mermas-estados {
    display: flex;
    flex: 1;
    min-width: 0;
    overflow-x: auto;
}

.mermas-estados .tab-button {
    padding: 0.5rem 0.875rem;
    white-space: nowrap;
    color: var(--text-secondary);
    background: transparent;
    border: 0;
    border-bottom: 2px solid transparent;
}

.mermas-estados span {
    margin-left: 0.25rem;
    font-size: 0.6875rem;
    color: var(--text-muted);
}

.mermas-busqueda {
    width: 260px;
    max-width: 100%;
}

.mermas-tabla tbody tr {
    cursor: pointer;
}

.mermas-tabla td:first-child {
    white-space: nowrap;
}

.mermas-tabla tbody tr:hover,
.mermas-tabla tbody tr:focus {
    outline: 0;
    background: #fafafa;
}

.mermas-vacio {
    padding: 3rem 1rem !important;
    text-align: center;
    color: var(--text-muted);
}

.mermas-almacen {
    max-width: 320px;
    margin-bottom: 1rem;
}

.mermas-almacen label,
.mermas-concluir label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.mermas-partidas {
    font-size: 0.8125rem;
}

.mermas-partidas th {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.mermas-cantidad {
    width: 96px;
    margin-left: auto;
    text-align: right;
}

.mermas-alerta {
    display: block;
    color: #b45309;
}

.mermas-subtitulo {
    margin: 1rem 0 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.mermas-bitacora {
    margin: 0;
    padding: 0;
    font-size: 0.75rem;
    color: var(--text-secondary);
    list-style: none;
}

.mermas-concluir {
    margin-top: 1rem;
}

.mermas-aviso {
    margin-bottom: 1rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.8125rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: #f4f4f5;
}

.mermas-aviso.error {
    color: #991b1b;
    background: #fef2f2;
    border-color: #fecaca;
}

/* --- Móvil --- */
@media (max-width: 767.98px) {
    .sidebar {
        position: fixed;
        z-index: 1040;
        height: 100vh;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.active {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 1030;
        background: rgb(0 0 0 / 0.3);
    }

    .main-content {
        width: 100%;
        margin-left: 0;
        padding-bottom: 64px;
    }

    .top-bar {
        padding-left: 3.5rem;
    }

    .content-wrapper {
        padding: 1rem;
    }

    /* dashboard.css lo oculta con !important; aquí es el único acceso a "Cerrar sesión" en móvil. */
    .mobile-menu-btn {
        display: flex !important;
        position: fixed;
        top: 10px;
        left: 12px;
        z-index: 95;
        align-items: center;
        justify-content: center;
        width: 36px;
        height: 36px;
        background: #fff;
        border: 1px solid var(--border-color);
        border-radius: 6px;
        color: var(--text-primary);
    }

    .mobile-bottom-nav {
        display: flex;
        position: fixed;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: 1020;
        height: 56px;
        background: #fff;
        border-top: 1px solid var(--border-color);
    }

    .mobile-bottom-nav a {
        display: flex;
        flex: 1;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        color: var(--text-muted);
        font-size: 0.625rem;
        text-decoration: none;
    }

    .mobile-bottom-nav a.active {
        color: var(--primary-color);
    }
}

/* --- Login --- */
.login-page {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login-card {
    width: 100%;
    max-width: 360px;
    padding: 2rem;
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.login-card img {
    display: block;
    height: 48px;
    margin-bottom: 1.25rem;
}

.login-card h1 {
    margin: 0 0 0.25rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.login-card p {
    margin: 0 0 1.25rem;
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.login-card label {
    display: block;
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.login-card input {
    width: 100%;
    margin-bottom: 0.875rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.login-card input:focus {
    outline: 0;
    border-color: #a1a1aa;
    box-shadow: 0 0 0 3px rgb(0 0 0 / 0.05);
}

.login-card button {
    width: 100%;
    padding: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #fff;
    background: var(--primary-color);
    border: 0;
    border-radius: 6px;
    cursor: pointer;
}

.login-card button:hover {
    background: var(--primary-dark);
}

.login-alert {
    margin-bottom: 1rem;
    padding: 0.5rem 0.625rem;
    font-size: 0.8125rem;
    color: #991b1b;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 6px;
}

.login-alert.success,
.login-alert.info {
    color: var(--text-secondary);
    background: #f4f4f5;
    border-color: var(--border-color);
}